Hot Melt Hemming Machine Base Q&A

I. Основная информация о продукте

Q1: What is the AF-572A Auto Folding Machine?

A1:The AF-572A Auto Folding Machine is a computer chip controlled automatic gluing and hemming machine, belonging to integrated electromechanical products. It is widely applicable to various leather products such as shoes, leather bags, wallets and mobile phone cases. It can handle a variety of materials including PVC, PU, natural leather, artificial leather and fabrics, and efficiently carry out the hot melt adhesive hemming process, ensuring neat edges and firm bonding, providing a reliable guarantee for improving product quality. The machine is equipped with an advanced automatic glue application and hemming circuit system controlled by a computer chip, enabling intelligent operation throughout the entire process, and adopts servo electronic motor automatic positioning technology, saving 40% energy compared with traditional equipment.

Q2: What is the AF-572A used for?

A2:It is mainly used for automatic gluing and hemming of the edges of leather products such as shoes, leather bags, wallets and phone cases. Specific functions include:

  1. Hot melt adhesive hemming of PVC, PU, natural leather, artificial leather and fabrics.

  2. Automatic gluing to ensure firm bonding.

  3. Automatic hemming to ensure neat edges.

  4. Supports three hemming modes: inner bend, straight line and outer bend.

  5. Supports synchronous folding of reinforcing tape.

  6. Improves product appearance quality and production efficiency.

Q3:What are the key technical parameters of the AF-572A?

A3: Key technical parameters of the AF-572A are as follows:

  1. Model No.: AF-572A

  2. Напряжение: 220V/50HZ

  3. Heating Power: 0.25KW

  4. Total Power: 1.4Kw

  5. Hemming Width: 3–6.5MM

  6. Hemming pulling stroke: 1–8mm adjustable

  7. Main shaft speed: 0–3000Rpm

  8. Engine oil: 40#

  9. Размер машины: 1200×550×1160MM

  10. Machine Weight: 135KG

The voltage affects the usable region, heating power and total power affect energy consumption and power distribution, hemming width and stroke determine the applicable process range, and size and weight affect installation space and handling.

Q4:What are the main features of the AF-572A?

A4: Main features include:

  1. Intelligent control: Equipped with an advanced automatic glue application and hemming circuit system controlled by a computer chip, enabling intelligent operation throughout the entire process.

  2. Precise control: Relying on the computer chip processing circuit system and precise control by a stepper motor, it has the functions of variable distance for inner bend, straight line and outer bend.

  3. Adjustable stroke: The pulling stroke of the outer bend, straight line and inner bend hemming can be flexibly adjusted within the range of 1–8mm.

  4. Digital panel: Equipped with a touch-type digital display control panel, the melting glue temperature, glue output flow rate and glue output temperature can all be adjusted steplessly.

  5. Safe and reliable: The automatic tooth cutting function for the inner bend is combined with a dual glue output protection system to ensure safe and reliable operation.

  6. Good hemming effect: With an innovative design of the folding mechanism, it is convenient to adjust. The hemming effect is meticulous and flat, with uniform width and beautiful radian.

  7. Adjustable width: The hemming width can be adjusted within the range of 3mm–6.5mm, and it supports the synchronous folding of the reinforcing tape.

  8. Energy-saving and environmentally friendly: It adopts the automatic positioning technology of a servo electronic motor, which can save 40% of energy compared with traditional equipment, being both efficient and environmentally friendly.

II. Применимые отрасли и материалы

Q5: What materials can the AF-572A process?

A5:The AF-572A is suitable for the following materials:

  1. PVC

  2. PU

  3. Natural leather

  4. Artificial leather

  5. Fabrics

  6. Other leather and fabric products

The machine can perform hot melt adhesive hemming on these materials, ensuring neat edges and firm bonding.

Q6: What industries or factories use the AF-572A?

A6: It is widely used in the following industries:

  1. Shoe factories

  2. Leather bag factories

  3. Wallet factories

  4. Phone case processing factories

  5. Leather goods factories

  6. Golf bag factories

  7. Insole factories

And other manufacturers requiring hemming of leather and fabric products.

Q7: What products is the AF-572A suitable for?

A7:Suitable for the following products:

  1. Shoes

  2. Leather bags

  3. Wallets

  4. Phone cases

  5. Golf bags

  6. Insoles

  7. Various leather products

  8. Various fabric products

三. Functions & Performance

Q8: What does the intelligent control of the AF-572A include?

A8:Intelligent control includes:

  1. Equipped with an advanced automatic glue application and hemming circuit system controlled by a computer chip.

  2. Enables intelligent operation throughout the entire process.

  3. Relying on the computer chip processing circuit system and precise control by a stepper motor.

  4. Has the functions of variable distance for inner bend, straight line and outer bend.

  5. Adopts servo electronic motor automatic positioning technology.

Q9: What are the hemming width and stroke of the AF-572A?

A9:

  1. Hemming width: 3mm–6.5mm adjustable.

  2. Hemming pulling stroke: flexibly adjustable within 1–8mm.

  3. Supports synchronous folding of the reinforcing tape.

Q10: What are the functions of the AF-572A digital control panel?

A10:The touch-type digital display control panel provides the following functions:

  1. Stepless adjustment of melting glue temperature.

  2. Stepless adjustment of glue output flow rate.

  3. Stepless adjustment of glue output temperature.

  4. Displays set temperature and actual temperature.

  5. Displays glue output quantity.

  6. Displays speed setting values for outer bend, straight line and inner bend.

  7. Equipped with setup key, increase key and decrease key for convenient parameter adjustment.

Q11:  What safety protection functions does the AF-572A have?

A11:Safety protection functions include:

  1. Automatic tooth cutting function for the inner bend, ensuring inner bend hemming effect.

  2. Dual glue output protection system, ensuring safe and reliable operation.

  3. Servo electronic motor automatic positioning technology, saving 40% energy compared with traditional equipment, reducing energy consumption and heat.

四.Operation & Control

Q12: What checks are required before starting the AF-572A?

A12:The following checks are required before starting:

  1. Check whether the workplace power supply matches the machine requirements.

  2. Clean the anti-rust oil on the machine surface.

  3. Turn the belt wheel by hand and check whether the clippers, edge guard bar and iron hammer have interference.

  4. Check the oil level to ensure it reaches the central red point, otherwise oil must be added.

Q13:What is the startup procedure for the AF-572A?

A13:The startup procedure is as follows:

  1. Set the power switch on the lower electrical equipment box to “1”, the power lamp lights up, indicating the machine is started.

  2. Press the power switch on the control panel. If the red pilot lamp lights up, it indicates normal startup.

  3. Press the outflow glue temperature key and melt glue temperature key. The corresponding pilot lamps light up and the temperature starts to rise. After about 15 minutes, the actual temperature values equal the set values.

  4. Press the outflow glue key. If the pilot lamp lights up, it indicates the glue has melted and the machine can start to work.

  5. Turn on the motor key on the lower electrical equipment box. The motor starts to run and the machine can start to work.

  6. Lift the glue head through the arch, put in the product, and step on the foot panel to start working. Stepping forward on the foot panel makes the folding speed faster; otherwise, slower.

Q14: How to set the temperature of the AF-572A?

A14:Temperature setting method:

  1. Press the setup key, and see the red number of outflow glue temperature shine, indicating it can be edited.

  2. Press the △ key or ▽ key to set the value.

  3. After setting, press the setup key again until the outflow glue temperature number no longer shines.

  4. Note: The set melt glue temperature must be equal to the set outflow glue temperature, and they should also be equal to the melting temperature of the glue you bought.

Q15: How to adjust the glue output quantity of the AF-572A?

A15:Glue output quantity adjustment method:

  1. Press the setup key continuously until the red number of outflow glue quantity shines, indicating it can be edited.

  2. Press the △ key or ▽ key to set the outflow glue quantity.

  3. The larger the value, the more glue output.

  4. After setting, press the setup key again until no number shines, indicating the setting is complete.

  5. Adjust the glue output quantity according to the folding effect of the products and your familiarity with the machine.

五.Adjustment & Folding

Q16: How to adjust the iron hammer of the AF-572A?

A16:Iron hammer adjustment method:

  1. If the working material is not stuck firmly or is hard to feed forward:
    a. Check and ensure the presser foot condition is correct.
    b. Check if the spring is too loose. If yes, loosen the nut 0411 and 0412, rotate nut 0411 clockwise, adjust the spring, then tighten the nut 0412.
    c. Check the upper hammer flake 0406 and lower hammer flake 0405, and see if the clearance between them is too big. If yes, loosen the grip nuts 0403, then adjust the clearance between them according to the thickness of the working material. After adjustment, tighten the nuts 0403.

  2. If the working material is broken when folding: Check the iron hammer and the presser foot, and see if they are too close to each other. The clearance between the presser foot and iron hammer is subject to the thickness of the working material, and it is about 0.5mm–1.5mm generally.

Q17: What are the functions of the main parts of the AF-572A?

A17:Main parts functions are as follows:

  1. Edge guard bar: Controls the outer folding edge, controlled by the eccentric pin. Turn the eccentric pin clockwise for a narrower and finer folding effect; turn it anti-clockwise for the contrary effect.

  2. Clippers: Used to cut when folding internal-curve and to control the width of folding. The working position is controlled by the adjusting screw B.

  3. Glue head: Fixes the working material, applies glue and passes through the reinforcing tape. It is controlled by the adjusting screw A and makes the working material at appropriate tension.

  4. Location piece: Used to fold different sizes of products. It can satisfy different folding requirements by lifting or lowering its position.

Q18: How to perform reverse folding on the AF-572A?

A18: Reverse folding method:

  1. When reverse folding is needed, the following spare parts need to be exchanged: location piece, edge guard bar, baffle.

  2. Note: These exchange spares need to be purchased separately.

  3. When reverse folding is needed, adjust the adjusting screw A according to the thickness of the working material, run up the glue head, and widen the entry clearance of the working material.

Q19: How to perform French folding on the AF-572A?

A19:French folding method:

  1. French folding is a folding way that the glue head and hook foot are coordinated and pressed on the baffle.

  2. The working material is under the presser foot, and the hook foot just holds down the front edge of material.

  3. Edge guard bar: Controls the outer folding edge and the size of the edging by adjusting the eccentric pin. Turn the eccentric pin clockwise for a narrower and finer folding effect; turn it anti-clockwise for the contrary effect.

  4. Glue head: Fixes the working material, applies glue and passes through the reinforcing tape. It is controlled by the adjusting screw A and makes the working material at appropriate tension.

六.Maintenance

Q20:What are the lubrication requirements for the AF-572A?

A20:Lubrication requirements are as follows:

  1. Use 40# engine oil.

  2. Before each use, check the lubricating oil through the oil grass and see if it reaches the central red point.

  3. Before starting work and finishing work, use the greaser to fill the lube (central red point) and let the machine idle running for about 1 minute so as to keep it at a good lubrication state.

  4. Clean the percolation net regularly for fear of blocking in.

  5. Please keep the surface and worktable of machine clean.

Q21:What are the daily maintenance requirements for the AF-572A?

A21:Daily maintenance requirements include:

  1. Use 40# engine oil.

  2. Check whether the oil level reaches the central red point before each use.

  3. Add lubricating oil before and after work, and let the machine idle for about 1 minute.

  4. Regularly clean the percolation net.

  5. Keep the machine surface and worktable clean.

七.Troubleshooting

Q22:What to do if the AF-572A does not output glue?

A22:If no glue is output, troubleshoot as follows:

  1. Check if the hot melt glue in the glue tank has completely melted (if the melt glue temperature is the same as the actual melt temperature).

  2. Check whether the pilot lamp of the melt glue temperature on the panel shines. You can measure the actual glue tank temperature with a thermometer, and see if it equals the temperature shown in the panel (generally within ±5℃).

  3. Check whether the pilot lamp of the outflow glue key shines, or if the outflow glue temperature is too low (can be adjusted appropriately).

  4. Check if the number of outflow glue temperature shines. You can measure the actual temperature of the glue head with a thermometer, and see if it equals the temperature shown in the panel (generally within ±5℃).

  5. Check if the pilot lamp of the setup key shines. If the working material is transparent and the light is too strong, it will cause the optoelectronics to lose control. You can solve this problem by dimming the light.

  6. Open the cover of the glue tank, check the hot melt glue in it if it has gone bad (Note: It is caused by high temperature or not excluding miscellaneous objects over a long period), and check if there is any miscellaneous object blocking the percolation net. Please clean away the miscellaneous objects in the glue tank regularly.

  7. Check if the outflow glue motor runs. If not, please let the electrician personnel overhaul the electric circuit, or call our factory and seek help. Do not let anyone without professional circuit knowledge check the electric circuit.

  8. If the glue head (presser foot) is blocked, use a steel wire to insert into the holes of the glue head and pull it back and forth lightly, and increase the outflow glue temperature to 200 °C at the same time. If still ineffective, remove the glue head and process by high temperature; the glue will be excluded from the glue head.

  9. If the red number on the panel shines, it won’t outflow glue. Press the setup key until no red number shines on the panel.

Q23: What to do if the AF-572A glue output quantity is too large?

A23:If the glue output quantity is too large:

  1. Check if the outflow glue quantity value is too large. The general value is 3–10.

  2. Check if the outflow glue temperature value is too high. The general value is 130℃–150℃.

  3. Check if the outflow glue motor loses control (the motor will run quickly out of control). If you discover this circumstance, please let the electrician personnel overhaul the electric circuit, or call our factory and seek help. Do not let anyone without professional circuit knowledge check the electric circuit.

Q24: What to do if the AF-572A glue output quantity is too small?

A24:If the glue output quantity is too small:

  1. Check if the adjusted speed is too fast and the outflow glue quantity is too small. If yes, press the setup key and increase the outflow glue quantity value.

  2. Check if the motor just runs slowly and hasn’t run quickly.

  3. If the glue head (presser foot) is blocked, please exclude it referring to point ⑦ above.

  4. The outflow glue temperature and glue tank temperature are too low. The general values are both about 130℃ in summer and about 150℃ in winter.

Q25:What to do if the AF-572A working material cannot be glued?

A25:If the working material cannot be glued:

  1. Check if the hot melt glue is too far outside. If yes, please adjust the presser foot.

  2. Check if the clearance of iron hammers is too big and the lock nut is too loose. If yes, adjust them (refer to the adjusting of the iron hammer).

  3. The temperature of presser foot (outflow glue temperature) is too high. Decrease the temperature appropriately.

八. Selection & After-sales

Q26:How to choose the AF-572A Auto Folding Machine?

A26:Choose based on the following factors:

  1. Actual production needs: Confirm whether automatic gluing and hemming functions are needed.

  2. Processing materials: Confirm whether they are PVC, PU, natural leather, artificial leather, fabrics, etc.

  3. Hemming width: Confirm whether 3–6.5mm meets process requirements.

  4. Hemming stroke: Confirm whether 1–8mm meets hemming requirements.

  5. Power conditions: Confirm whether the factory has 220V/50HZ power.

  6. Installation space: Confirm whether 1200×550×1160MM can be placed.

  7. Order volume: Evaluate whether production needs are met based on daily output.

  8. After-sales support: Confirm whether the manufacturer provides installation guidance, operation training and after-sales service.

Q27:What should I consider when buying the AF-572A?

A27:Buyers should consider the following factors:

  1. Power and power supply: Confirm whether 220V/50HZ and 1.4Kw total power are available.

  2. Hemming width: Whether 3–6.5mm meets process requirements.

  3. Hemming stroke: Whether 1–8mm meets hemming requirements.

  4. Machine size: Whether 1200×550×1160MM fits the installation space.

  5. Machine weight: Whether 135KG requires consideration for handling and load-bearing.

  6. Hot melt adhesive type: Confirm that the melting temperature of the hot melt adhesive used matches the machine’s temperature control range.

  7. Spare parts availability: Confirm supply of clippers, glue head, heating tube, edge guard bar and other consumables.

  8. After-sales support: Confirm installation guidance, operation training and after-sales service.

  9. Delivery time and warranty period: Confirm delivery time and warranty policy.

Q28: Can the AF-572A be customized?

A28:Customization can be confirmed with the manufacturer according to actual requirements. Possible customization directions include:

  1. Working voltage

  2. Power interface

  3. Hemming width range

  4. Hemming stroke range

  5. Clipper specifications

  6. Glue head specifications

  7. Appearance color

Before customization, clarify production needs, material types, hemming requirements, power conditions and installation space so the manufacturer can provide a suitable solution.

Q29: Does the manufacturer provide installation and technical support?

A29:The manufacturer can provide the following services:

  1. Installation guidance

  2. Commissioning support

  3. Operation training

  4. Послепродажное обслуживание

  5. Spare parts supply

Specific service scope depends on order and region. Please confirm with the supplier before purchase. It is recommended to clarify installation, training, warranty and spare parts supply in the purchase contract.