A multi-layer positioning roll forming device for synthetic leather bags

Abstract

This invention discloses a multi-layer positioning roll forming device for synthetic leather in bags and luggage, comprising a base plate, a gantry frame fixedly connected to the upper surface of the base plate, a glue spraying device slidably connected to the outer surface of the gantry frame, and plumb bars on both sides of the glue spraying device. This invention relates to the field of synthetic leather technology. This multi-layer positioning roll forming device for synthetic leather in bags and luggage, by setting up a glue spraying device, a roll forming device, and a positioning device, allows for single-layer or multi-layer lamination of leather during operation. Multiple layers can be laminated together, and within the allowable range of the equipment, synthetic leather of different thicknesses can be manufactured. After repeated rolling by the roll forming device, the leather is manufactured. Subsequently, the plumb bars slide downwards along the inner surface of the gantry frame, and a cutter removes the unlaminated scraps. The positioning device is then released, and the complete synthetic leather is removed from the inside of the equipment. This solves the problem of severe edge warping in traditional synthetic leather forming equipment during manufacturing.

Description

Technical Field

[0001] This invention relates to the field of synthetic leather technology, specifically to a multi-layer positioning roll forming device for synthetic leather bags. Background Technology

[0002] In the luggage manufacturing industry, synthetic leather has become one of the important materials for making luggage due to its excellent performance and relatively low cost. However, as the market demands increasingly higher quality and more diverse designs for luggage, the molding processes for synthetic leather face greater challenges. Especially in the multi-layer composite molding of synthetic leather, traditional production methods have revealed numerous problems, severely restricting the development of the luggage industry.

[0003] Traditional synthetic leather molding equipment for bags suffers from significant deficiencies in the positioning process when handling multi-layered leather. Due to the lack of a precise positioning mechanism, misalignment and other issues easily occur during the lamination process, resulting in poor bonding accuracy between the layers of synthetic leather. This not only affects the appearance quality of the synthetic leather, causing surface defects on the bags, but also reduces its physical properties, such as strength and durability. For example, in the production of some high-end bags, inaccurate positioning between synthetic leather layers can lead to delamination and cracking during use, severely damaging the product's brand image and market competitiveness.

[0004] In roll forming, traditional equipment also struggles to meet the demands of high-quality production. Its roll forming methods are often rather crude, failing to ensure uniform stress on each layer of leather during the rolling process. Uneven roll forming can lead to weak adhesion or over-compaction in areas of synthetic leather, affecting the overall quality of the product. Furthermore, traditional equipment has low roll forming efficiency, unable to keep pace with large-scale production, increasing production costs and reducing the company's profitability.

[0005] Furthermore, with the emergence of new synthetic leather materials and more complex bag designs, traditional molding equipment is finding it increasingly difficult to adapt to diverse production needs. New materials may have specific requirements for positioning and rolling process parameters, which traditional equipment cannot flexibly adjust, thus limiting the application and promotion of new materials in bag manufacturing.

[0006] In conclusion, developing a multi-layer positioning roll forming device for synthetic leather in bags and luggage has significant practical implications. It can effectively solve the problems of traditional forming methods in multi-layer positioning and roll forming, improve the forming quality of synthetic leather, ensure precise positioning and uniform roll forming of each layer of leather, and enhance the quality of bags and luggage. Simultaneously, it can adapt to the production needs of new materials and diversified designs, enhance the market competitiveness of bag and luggage manufacturers, and promote the development of the bag and luggage industry towards higher quality and higher efficiency. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a multi-layer positioning roller pressing device for synthetic leather in bags, which solves the problems of low production efficiency and poor product quality in traditional manual synthetic leather manufacturing.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a multi-layer positioning roll forming device for synthetic leather bags, comprising a base plate, a gantry frame fixedly connected to the upper surface of the base plate, a glue spraying device slidably connected to the outer surface of the gantry frame, the base plate supporting the entire device, first placing leather on the upper surface of the base plate, the positioning device clamping the leather, the glue spraying device sliding up, down, left, and right to spray adhesive on the outer surface of the leather, the roll forming device spreading the adhesive, and then covering the upper surface of the leather with new leather or fabric, the glue spraying device having vertical bars on both sides, the bottom end of the vertical bars being fixedly connected to a cutter, the bottom of the cutter being equipped with a roll forming device, and the left side of the roll forming device being equipped with a positioning device;

[0009] The roller pressing device includes a chute, with a telescopic rod slidably connected to the inner surface of the chute. A pressure roller is rotatably connected to the bottom end of the telescopic rod. After the leather is clamped and fixed, adhesive is sprayed onto its upper surface in dots. Then, the adhesive spraying device resets, the telescopic rod retracts, and the lower surface of the pressure roller contacts the upper surface of the leather. The scraper is rotated, and the lower surface of the scraper contacts the upper surface of the leather. Then, the bottom end of the telescopic rod slides to the right along the inner surface of the chute, and the scraper slides along the upper surface of the leather, spreading the dots of adhesive. The pressure roller rolls, and a scraper is rotatably connected to the outer surface of the pressure roller.

[0010] The positioning device includes a cam, a connecting rod rotatably connected to the outer surface of the cam, a pressure plate rotatably connected to the top of the connecting rod, and a fixing rod slidably connected to the inner surface of the pressure plate. The cam rotates on the outer surface of the base plate. As the cam moves, the connecting rod drives the pressure plate to slide downward along the outer surface of the fixing rod, and the tension spring extends. The multi-layer leather located on the upper surface of the base plate is pressed down and fixed by the pressure plate, ensuring that the multi-layer leather will not be skewed due to external pressure during extrusion molding. The outer surface of the fixing rod is fixedly connected to the tension spring.

[0011] Preferably, the outer surface of the cam is rotatably connected to the outer surface of the base plate, and the bottom end of the fixing rod is fixedly connected to the upper surface of the base plate. Under the control of the cam, the cam can rotate at different angles to adapt to the squeezing and clamping of leathers of different thicknesses and layers, ensuring that the leather can be fully bonded in one go. The bottom end of the tension spring is fixedly connected to the upper surface of the pressure plate.

[0012] Preferably, the outer surface of the plumb bob is slidably connected to the inner surface of the gantry frame. The roller pressing device repeatedly presses the leather, forcing the adhesive to adhere tightly to the fabric. Through multiple spraying and bonding processes, the forming of multi-layer leather can be accelerated. The positioning device is symmetrically installed on both sides of the spraying device. The leather can be single-layered and bonded, or multiple layers can be bonded as a group. Within the allowable range of the equipment, synthetic leather of different thicknesses can be manufactured. After repeated rolling by the roller pressing device, the manufacturing is completed. Then, the plumb bob slides down along the inner surface of the gantry frame, and the lower surface of the pressure plate contacts the upper surface of the base plate. The cutter cuts off the unbonded scraps, the positioning device is released, and the complete synthetic leather is taken out from the inside of the equipment.

[0013] Preferably, the glue spraying device includes an adjusting plate, a control rod slidably connected to the inner surface of the adjusting plate, an outer cover fixedly connected to the bottom end of the control rod, and a pressure boosting device fixedly connected to the upper surface of the outer cover. The leather is placed on the upper surface of the base plate, the positioning device clamps the two sides of the leather, the adjusting plate slides to the left along the outer surface of the gantry, and then the control rod slides downward along the inner surface of the adjusting plate, the outer cover is pushed downward until the lower surface of the guide wheel contacts the upper surface of the leather, the adjusting plate and the control rod stop moving, and the pressure boosting device injects adhesive into the interior of the spray plate. The bottom of the pressure boosting device is provided with a spray plate, and the exterior of the spray plate is provided with a guide wheel.

[0014] Preferably, the inner surface of the adjusting plate is slidably connected to the outer surface of the gantry frame, the pressurizing device is symmetrically installed on both sides of the control rod, the adhesive collides with the sprue plate during the downward movement, and the adhesive is sprayed in a dotted pattern on the outer surface of the leather. The adjusting plate slides to the right, the guide wheel rotates, and the outer surface of the leather is evenly sprayed with adhesive. After the spraying is completed, the control rod slides upward, the adhesive spraying device is reset, the lower surface of the outer cover is fixedly connected to the upper surface of the sprue plate, the guide wheel is symmetrically installed on both sides of the sprue plate, the outer surface of the guide wheel is rotatably connected to the inner surface of the outer cover, and the lower surface of the guide wheel is in rolling contact with the upper surface of the base plate.

[0015] Preferably, the pressurizing device includes a sealing cylinder, with a feed pipe fixedly connected to the upper surface of the sealing cylinder. A piston is provided on the left side of the feed pipe. The sealing cylinder is fixed to the top of the outer cover. Fluid adhesive enters the interior of the sealing cylinder from the feed pipe. The resistor is energized and heated to prevent the adhesive from cooling and solidifying, which could cause blockage inside the equipment, thus keeping the adhesive in the best bonding state. The piston reciprocates rapidly up and down. A limit rod is fixedly connected to the outer surface of the piston. A cover plate is slidably connected to the outer surface of the limit rod. A resistor is fixedly connected to the upper surface of the cover plate. A discharge pipe is provided at the bottom of the resistor.

[0016] Preferably, the lower surface of the sealing cylinder is fixedly connected to the upper surface of the outer cover, the inner surface of the outer cover is fixedly connected to the outer surface of the discharge pipe, the cover plate slides up and down along the outer surface of the piston, the limiting rod prevents the cover plate from falling off, the relatively viscous adhesive is squeezed and mixed to ensure the fluidity of the adhesive, and squeezed out from the inside of the discharge pipe, the outer surface of the top of the discharge pipe is fixedly connected to the inner surface of the sealing cylinder, the inner surface of the sealing cylinder is slidably connected to the outer surface of the piston, and the outer surface of the piston is slidably connected to the inner surface of the cover plate.

[0017] Preferably, the groove is formed in the wall of the base plate. When the telescopic rod moves to the rightmost end, it grows and then the positioning device is released. New leather is then attached to the upper surface of the leather. The positioning device presses down on the upper surface of the composite leather. The roller pressing device returns to the left. The outer surface of the telescopic rod is slidably connected to the outer surface of the base plate.

[0018] Preferably, the lower surface of the pressure roller is in rolling connection with the upper surface of the base plate, and then the telescopic rod retracts, repeating the above steps. The scraper and pressure roller extrude the double-layer leather into shape, and the upper surface of the base plate is in sliding connection with the lower surface of the scraper.

[0019] This invention provides a multi-layer positioning roll forming device for synthetic leather bags. It has the following beneficial effects:

[0020] (i) In this invention, by setting a positioning device, when the equipment is in use, the cam rotates on the outer surface of the base plate. As the cam moves, the connecting rod drives the pressure plate to slide down along the outer surface of the fixed rod, and the tension spring extends. The multi-layer leather located on the upper surface of the base plate is pressed down and fixed by the pressure plate, ensuring that the leather will not be skewed due to external pressure during extrusion molding. Under the control of the cam, the cam can rotate at different angles to adapt to the extrusion and clamping of leathers of different thicknesses and layers, ensuring that the leather can be bonded in one go. This solves the problem that when traditional synthetic leather molding equipment extrudes leather, the leather is prone to skew and shift due to pressure because there is no external fixed positioning device.

[0021] (II) In this invention, by setting up a glue spraying device, when the equipment is in use, the leather is placed on the upper surface of the base plate, the positioning device clamps the two sides of the leather, the adjusting plate slides to the left along the outer surface of the gantry, and then the control rod slides down along the inner surface of the adjusting plate, the outer cover is pushed down until the lower surface of the guide wheel contacts the upper surface of the leather, the adjusting plate and the control rod stop moving, the pressurizing device injects adhesive into the inside of the sprue, the adhesive collides with the sprue during the downward movement, and the adhesive is sprayed in a dotted pattern on the outer surface of the leather, the adjusting plate slides to the right, the guide wheel rotates, and the outer surface of the leather is evenly sprayed with adhesive. After the spraying is completed, the control rod slides up, the glue spraying device resets, which solves the problem of low efficiency of traditional manual glue application.

[0022] (III) In this invention, by setting up a pressurization device, when the equipment is in use, the sealing cylinder is fixed on the top of the outer cover, and the fluid adhesive enters the interior of the sealing cylinder from the feed pipe. The resistor is energized and heated to prevent the adhesive from cooling and solidifying, which would cause blockage inside the equipment. This ensures that the adhesive always maintains the best bonding state. The piston moves up and down quickly to pump the adhesive, and the cover plate slides up and down along the outer surface of the piston. The limiting rod prevents the cover plate from falling off. The relatively viscous adhesive is squeezed and mixed to ensure the fluidity of the adhesive, which is then squeezed out from the interior of the discharge pipe. This solves the problem that traditional composite synthetic leather adhesives tend to solidify when left to stand inside the equipment.

[0023] (iv) In this invention, by setting up a roller pressing device, when the equipment is in use, after the leather is clamped and fixed, its upper surface is sprayed with adhesive in dots. Then the adhesive spraying device is reset, the telescopic rod is retracted, so that the lower surface of the pressure roller contacts the upper surface of the leather. The scraper is rotated so that the lower surface of the scraper contacts the upper surface of the leather. Then the bottom end of the telescopic rod slides to the right along the inner surface of the groove, the scraper slides along the upper surface of the leather, the dots of adhesive are spread out, the pressure roller rolls, and the telescopic rod grows when it moves to the rightmost end. Then the positioning device is released, and new leather is attached to the upper surface of the leather. The positioning device presses down on the upper surface of the composite leather, the roller pressing device is reset to the left, and then the telescopic rod retracts. The above steps are repeated, and the scraper and pressure roller extrude the double-layer leather into shape, which solves the problem of poor manual extrusion effect in traditional synthetic leather forming devices.

[0024] (v) In this invention, by setting a base plate, when the equipment is in use, the base plate supports the entire device. First, the leather is placed on the upper surface of the base plate, the positioning device clamps the leather, the glue spraying device slides up, down, left and right to spray adhesive on the outer surface of the leather, the roller pressing device spreads the adhesive, and then a new leather or fabric is covered on the upper surface of the leather. The roller pressing device repeatedly rolls and presses, forcing the adhesive to adhere tightly to the fabric. Through multiple glue spraying and bonding, the forming of multi-layer leather can be accelerated, solving the problem of poor forming effect of traditional synthetic leather forming equipment.

[0025] (vi) In this invention, by setting up a glue spraying device, a roller pressing device and a positioning device, when the equipment is in use, the leather can be covered and bonded in a single layer or in multiple layers as a group, and multiple groups can be bonded. Within the allowable range of the equipment, synthetic leather of different thicknesses can be manufactured. Under the repeated rolling of the roller pressing device, the manufacturing is completed. Then, the plumb rod slides down along the inner surface of the gantry frame, the cutter cuts off the unbonded scraps, the positioning device is released, and the complete synthetic leather is taken out from the inside of the equipment. This solves the problem of severe edge curling of products during the manufacturing process of traditional synthetic leather molding equipment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a cross-sectional view of the present invention;

[0028] Figure 3 This is a schematic diagram of the positioning device of the present invention;

[0029] Figure 4 This is a schematic diagram of the adhesive spraying device of the present invention;

[0030] Figure 5 This is a schematic diagram of the pressurization device of the present invention;

[0031] Figure 6 This is a schematic diagram of the roller pressing device of the present invention.

[0032] In the diagram: 1. Base plate; 2. Gantry frame; 3. Glue spraying device; 4. Vertical bar; 5. Cutter; 6. Roller pressing device; 7. Positioning device; 10. Cam; 11. Connecting rod; 12. Pressure plate; 13. Fixing rod; 14. Tension spring; 20. Adjusting plate; 21. Control rod; 22. Outer cover; 23. Pressurizing device; 24. Strain plate; 25. Guide wheel; 30. Sealing cylinder; 31. Feed pipe; 32. Piston; 33. Limiting rod; 34. Cover plate; 35. Resistor; 36. Discharge pipe; 40. Slide groove; 41. Telescopic rod; 42. Pressure roller; 43. Scraper. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0034] Please see Figures 1-6 The present invention provides a technical solution: a multi-layer positioning roller forming device for synthetic leather bags, including a base plate 1, a gantry frame 2 fixedly connected to the upper surface of the base plate 1, a glue spraying device 3 slidably connected to the outer surface of the gantry frame 2, vertical rods 4 arranged on both sides of the glue spraying device 3, a cutter 5 fixedly connected to the bottom end of the vertical rods 4, a roller pressing device 6 arranged at the bottom of the cutter 5, and a positioning device 7 arranged on the left side of the roller pressing device 6;

[0035] The roller pressing device 6 includes a chute 40, a telescopic rod 41 is slidably connected to the inner surface of the chute 40, a pressure roller 42 is rotatably connected to the bottom end of the telescopic rod 41, and a scraper 43 is rotatably connected to the outer surface of the pressure roller 42; the positioning device 7 includes a cam 10, a connecting rod 11 is rotatably connected to the outer surface of the cam 10, a pressure plate 12 is rotatably connected to the top end of the connecting rod 11, a fixing rod 13 is slidably connected to the inner surface of the pressure plate 12, and a tension spring 14 is fixedly connected to the outer surface of the fixing rod 13.

[0036] The outer surface of cam 10 is rotatably connected to the outer surface of base plate 1, the bottom end of fixed rod 13 is fixedly connected to the upper surface of base plate 1, and the bottom end of tension spring 14 is fixedly connected to the upper surface of pressure plate 12. The outer surface of vertical rod 4 is slidably connected to the inner surface of gantry frame 2, positioning device 7 is symmetrically installed on both sides of glue spraying device 3, and the lower surface of pressure plate 12 is in contact with the upper surface of base plate 1.

[0037] In use, the cam 10 rotates on the outer surface of the base plate 1. As the cam 10 moves, the connecting rod 11 drives the pressure plate 12 to slide down along the outer surface of the fixed rod 13. The tension spring 14 extends, and the multi-layer leather on the upper surface of the base plate 1 is pressed down and fixed by the pressure plate 12, ensuring that the multi-layer leather will not be skewed due to external pressure during extrusion molding. Under the control of the cam 10, the cam 10 can rotate at different angles to adapt to the extrusion clamping of leather with different thicknesses and layers, ensuring that the leather can be bonded in one go.

[0038] After the leather is clamped and fixed, adhesive is sprayed onto its upper surface in dots. Then the adhesive spraying device 3 is reset, the telescopic rod 41 is retracted, so that the lower surface of the pressure roller 42 contacts the upper surface of the leather. The scraper 43 is rotated so that the lower surface of the scraper 43 contacts the upper surface of the leather. Then the bottom end of the telescopic rod 41 slides to the right along the inner surface of the groove 40, the scraper 43 slides along the upper surface of the leather, the dots of adhesive are spread out, the pressure roller 42 rolls, and the telescopic rod 41 grows when it moves to the rightmost end. Then the positioning device 7 is released, and new leather is attached to the upper surface of the leather. The positioning device 7 presses the upper surface of the composite leather, the roller pressing device 6 is reset to the left, and then the telescopic rod 41 is retracted. The above steps are repeated, and the scraper 43 and the pressure roller 42 extrude the double layer of leather into shape.

[0039] The base plate 1 supports the entire device. First, the leather is placed on the upper surface of the base plate 1. The positioning device 7 clamps the leather. The glue spraying device 3 slides up, down, left, and right to spray adhesive on the outer surface of the leather. The roller pressing device 6 spreads the adhesive. Then, a new leather or fabric is covered on the upper surface of the leather. The roller pressing device 6 repeatedly rolls the leather, forcing the adhesive to adhere tightly to the fabric. Through multiple glue spraying and bonding processes, the forming of multi-layer leather can be accelerated. Example

[0040] Please see Figures 1-6The present invention provides a technical solution: Based on Embodiment 1, the glue spraying device 3 includes an adjusting plate 20, a control rod 21 slidably connected to the inner surface of the adjusting plate 20, an outer cover 22 fixedly connected to the bottom end of the control rod 21, a pressure boosting device 23 fixedly connected to the upper surface of the outer cover 22, a slug plate 24 provided at the bottom of the pressure boosting device 23, and guide wheels 25 provided on the outside of the slug plate 24. The inner surface of the adjusting plate 20 is slidably connected to the outer surface of the gantry 2, the pressure boosting device 23 is symmetrically installed on both sides of the control rod 21, the lower surface of the outer cover 22 is fixedly connected to the upper surface of the slug plate 24, the guide wheels 25 are symmetrically installed on both sides of the slug plate 24, the outer surface of the guide wheels 25 is rotatably connected to the inner surface of the outer cover 22, and the lower surface of the guide wheels 25 is in rolling contact with the upper surface of the base plate 1.

[0041] The pressurizing device 23 includes a sealing cylinder 30. A feed pipe 31 is fixedly connected to the upper surface of the sealing cylinder 30. A piston 32 is arranged on the left side of the feed pipe 31. A limit rod 33 is fixedly connected to the outer surface of the piston 32. A cover plate 34 is slidably connected to the outer surface of the limit rod 33. A resistor 35 is fixedly connected to the upper surface of the cover plate 34. A discharge pipe 36 is arranged at the bottom of the resistor 35. The lower surface of the sealing cylinder 30 is fixedly connected to the upper surface of the outer cover 22. The inner surface of the outer cover 22 is fixedly connected to the outer surface of the discharge pipe 36. The outer surface of the top end of the discharge pipe 36 is fixedly connected to the inner surface of the sealing cylinder 30. The inner surface of the sealing cylinder 30 is slidably connected to the outer surface of the piston 32. The outer surface of the piston 32 is slidably connected to the inner surface of the cover plate 34.

[0042] The groove 40 is formed in the wall of the base plate 1, and the outer surface of the telescopic rod 41 is slidably connected to the outer surface of the base plate 1. The lower surface of the pressure roller 42 is rollably connected to the upper surface of the base plate 1, and the upper surface of the base plate 1 is slidably connected to the lower surface of the scraper 43.

[0043] In use, the leather is placed on the upper surface of the base plate 1, the positioning device 7 clamps the two sides of the leather, the adjusting plate 20 slides to the left along the outer surface of the gantry 2, and then the control rod 21 slides down along the inner surface of the adjusting plate 20, the outer cover 22 is pushed down until the lower surface of the guide wheel 25 contacts the upper surface of the leather, the adjusting plate 20 and the control rod 21 stop moving, the pressurizing device 23 injects adhesive into the interior of the spray plate 24, the adhesive collides with the spray plate 24 during the downward movement, and the adhesive is sprayed in a dotted pattern on the outer surface of the leather, the adjusting plate 20 slides to the right, the guide wheel 25 rotates, and the outer surface of the leather is evenly sprayed with adhesive. After the spraying is completed, the control rod 21 slides up, and the glue spraying device 3 resets.

[0044] The sealing cylinder 30 is fixed to the top of the outer cover 22. The fluid adhesive enters the interior of the sealing cylinder 30 through the feed pipe 31. The resistor 35 is energized and heated to prevent the adhesive from cooling and solidifying, which would cause blockage inside the equipment and keep the adhesive in the best bonding state. The piston 32 is rapidly pumped up and down, and the cover plate 34 slides up and down along the outer surface of the piston 32. The limit rod 33 prevents the cover plate 34 from falling off. The relatively viscous adhesive is squeezed and mixed to ensure the fluidity of the adhesive and squeezed out from the interior of the discharge pipe 36.

[0045] The leather can be applied in a single layer or in multiple layers as a group. Within the limits of the equipment, synthetic leather of different thicknesses can be manufactured. Under the repeated rolling of the roller pressing device 6, the manufacturing is completed. Then, the plumb bar 4 slides down along the inner surface of the gantry frame 2, the cutter 5 cuts off the unattached scraps, the positioning device 7 is released, and the complete synthetic leather is taken out from the inside of the equipment.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-layer positioning roll forming device for synthetic leather bags, comprising a base plate (1), characterized in that: A gantry frame (2) is fixedly connected to the upper surface of the base plate (1). A glue spraying device (3) is slidably connected to the outer surface of the gantry frame (2). A plumb line (4) is provided on both sides of the glue spraying device (3). A cutter (5) is fixedly connected to the bottom end of the plumb line (4). A roller pressing device (6) is provided at the bottom of the cutter (5). A positioning device (7) is provided on the left side of the roller pressing device (6). The roller pressing device (6) includes a chute (40), a telescopic rod (41) is slidably connected to the inner surface of the chute (40), a pressure roller (42) is rotatably connected to the bottom end of the telescopic rod (41), and a scraper (43) is rotatably connected to the outer surface of the pressure roller (42). The positioning device (7) includes a cam (10), a connecting rod (11) is rotatably connected to the outer surface of the cam (10), a pressure plate (12) is rotatably connected to the top end of the connecting rod (11), a fixing rod (13) is slidably connected to the inner surface of the pressure plate (12), and a tension spring (14) is fixedly connected to the outer surface of the fixing rod (13). The outer surface of the cam (10) is rotatably connected to the outer surface of the base plate (1), the bottom end of the fixing rod (13) is fixedly connected to the upper surface of the base plate (1), and the bottom end of the tension spring (14) is fixedly connected to the upper surface of the pressure plate (12). The glue spraying device (3) includes an adjusting plate (20), a control rod (21) is slidably connected to the inner surface of the adjusting plate (20), an outer cover (22) is fixedly connected to the bottom end of the control rod (21), a pressure boosting device (23) is fixedly connected to the upper surface of the outer cover (22), a drain plate (24) is provided at the bottom of the pressure boosting device (23), and a guide wheel (25) is provided on the outside of the drain plate (24). The pressurizing device (23) includes a sealing cylinder (30), a feed pipe (31) is fixedly connected to the upper surface of the sealing cylinder (30), a piston (32) is provided on the left side of the feed pipe (31), a limit rod (33) is fixedly connected to the outer surface of the piston (32), a cover plate (34) is slidably connected to the outer surface of the limit rod (33), a resistor (35) is fixedly connected to the upper surface of the cover plate (34), and a discharge pipe (36) is provided at the bottom of the resistor (35).

2. The multi-layer positioning roller pressing device for synthetic leather bags according to claim 1, characterized in that: The outer surface of the vertical rod (4) is slidably connected to the inner surface of the gantry frame (2), the positioning device (7) is symmetrically installed on both sides of the glue spraying device (3), and the lower surface of the pressure plate (12) is in contact with the upper surface of the base plate (1).

3. The multi-layer positioning roller pressing device for synthetic leather bags according to claim 1, characterized in that: The glue spraying device (3) includes an adjusting plate (20), a control rod (21) is slidably connected to the inner surface of the adjusting plate (20), an outer cover (22) is fixedly connected to the bottom end of the control rod (21), a pressure boosting device (23) is fixedly connected to the upper surface of the outer cover (22), a slug (24) is provided at the bottom of the pressure boosting device (23), and a guide wheel (25) is provided on the outside of the slug (24).

4. The multi-layer positioning roller pressing device for synthetic leather bags according to claim 3, characterized in that: The inner surface of the adjusting plate (20) is slidably connected to the outer surface of the gantry (2), the pressurizing device (23) is symmetrically installed on both sides of the control rod (21), the lower surface of the outer cover (22) is fixedly connected to the upper surface of the drain plate (24), the guide wheel (25) is symmetrically installed on both sides of the drain plate (24), the outer surface of the guide wheel (25) is rotatably connected to the inner surface of the outer cover (22), and the lower surface of the guide wheel (25) is in rolling contact with the upper surface of the base plate (1).

5. The multi-layer positioning roller pressing device for synthetic leather bags according to claim 4, characterized in that: The lower surface of the sealing cylinder (30) is fixedly connected to the upper surface of the outer cover (22), the inner surface of the outer cover (22) is fixedly connected to the outer surface of the discharge pipe (36), the outer surface of the top end of the discharge pipe (36) is fixedly connected to the inner surface of the sealing cylinder (30), the inner surface of the sealing cylinder (30) is slidably connected to the outer surface of the piston (32), and the outer surface of the piston (32) is slidably connected to the inner surface of the cover plate (34).

6. The multi-layer positioning roller pressing device for synthetic leather bags according to claim 1, characterized in that: The groove (40) is formed in the wall of the base plate (1), and the outer surface of the telescopic rod (41) is slidably connected to the outer surface of the base plate (1).

7. The multi-layer positioning roller pressing device for synthetic leather bags according to claim 6, characterized in that: The lower surface of the pressure roller (42) is in rolling connection with the upper surface of the base plate (1), and the upper surface of the base plate (1) is in sliding connection with the lower surface of the scraper (43).

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