Apparatus for applying glue to an upper and sole

Abstract

This utility model relates to the field of shoe gluing devices, providing a gluing device for shoe uppers and soles. The device includes a frame with an elastic film on it. The elastic film is a liquid-impermeable film, and its top surface is a gluing surface for holding adhesive. At least one shoe mold is located below the elastic film on the frame. During gluing, the elastic film is positioned between the shoe mold and the sole or upper. The shoe mold and the sole or upper are closed, and the adhesive on the elastic film is applied to the sole or upper. This gluing device enables stable and precise gluing. The elastic film between the shoe mold and the sole or upper, the mold's closure, and the application of adhesive to the sole or upper result in a uniform adhesive layer thickness and minimal fluctuation in bonding strength, reducing the risk of product delamination or separation. It achieves stable and precise gluing of shoe upper materials with various splicing styles, solving the technical problems of poor gluing effect, high cost, and low efficiency in shoe gluing.

Description

Technical Field

[0001] This utility model relates to the field of shoe gluing devices, and more particularly to a gluing device for shoe uppers and soles. Background Technology

[0002] The traditional handmade shoemaking industry and the automated shoemaking production line industry have the following defects and problems:

[0003] 1. Among the existing shoe upper materials with various materials and styles, the application of glue is uneven, inconsistent, uneven, jagged, and unstable, resulting in problems such as glue separation, high glue level, and low glue level.

[0004] 2. Manual operation is easily affected by factors such as experience and physical strength, resulting in uneven adhesive layer thickness, which leads to fluctuations in bonding strength and increases the risk of product delamination or separation.

[0005] 3. Manual glue application is much slower than automated equipment, making it difficult to meet the needs of large-scale production and becoming a bottleneck in the production line.

[0006] 4. The glue contains volatile organic compounds (VOCs) such as benzene and formaldehyde. Long-term exposure can easily cause respiratory diseases, skin allergies, and even cancer risks.

[0007] 5. Manual glue application relies on skilled workers, requiring long-term training and with labor costs rising year by year. This increases the burden on enterprises, as different workers have different techniques, resulting in inconsistent product quality within the same batch and affecting brand reputation.

[0008] 6. In automated shoe manufacturing production lines, glue clogging often occurs inside the glue spraying valve during the glue spraying process, frequently causing glue leakage and insufficient glue on the shoe material bonding surface.

[0009] 7. Manual control of glue quantity has low precision, which can easily lead to over-application or missed application, resulting in glue waste or increased rework costs.

[0010] 8. Reliance on traditional processes hinders technological upgrades, makes it difficult to adapt to the trend of intelligent manufacturing, and restricts the improvement of industry competitiveness.

[0011] 9. In automated shoe manufacturing production lines, when using high-viscosity oil-based glue in the glue spray valve, problems arise such as uneven glue lines, jagged edges, insufficient spread, and unevenness.

[0012] 10. In automated shoe manufacturing production lines, the speed and efficiency of changing shoe styles and adjusting production equipment are low, making it difficult to adapt to the production of multiple shoe styles.

[0013] 11. In automated shoe manufacturing production lines, when applying water-based adhesives via spraying, the adhesive may exhibit a fogged edge at the bottom and flow downwards, extending beyond the bonding surface of the shoe upper.

[0014] 12. In automated shoe manufacturing production lines, when applying glue to shoe uppers made of various splicing materials, the different adhesive absorption properties of different materials can easily cause the glue line to be higher or lower than the bonding surface in some areas, resulting in shoes with high or low glue levels and thus scrapping them.

[0015] In summary, existing shoe gluing methods suffer from poor results, high costs, and low efficiency. Utility Model Content

[0016] Therefore, to address the aforementioned problems, this utility model proposes a gluing device for shoe uppers and soles. It solves the technical problems of poor gluing effect, high cost, and low efficiency in shoe manufacturing.

[0017] To achieve the above objectives, the present invention adopts the following technical solution:

[0018] A gluing device for shoe uppers and soles includes a frame with an elastic film on the frame. The elastic film is a liquid-impermeable film, and the top surface of the elastic film is a gluing surface for placing glue. At least one shoe mold is located below the elastic film on the frame. During gluing, the elastic film is located between the shoe mold and the sole or upper. The shoe mold and the sole or upper are closed together, and the glue on the elastic film is applied to the sole or upper.

[0019] Further:

[0020] The frame is provided with a mold device located below the elastic film. The mold device has multiple shoe molds, which are sole molds and / or upper molds. The mold device is capable of moving one of the shoe molds to the glue application station.

[0021] The mold device includes a mold wheel mounted on a frame, a first drive mechanism for driving the mold wheel to rotate, and multiple shoe molds mounted on the mold wheel.

[0022] At least one sliding part is slidably provided on the frame, and a driving device is provided on the frame to drive the sliding part to move. A moving device is provided on the sliding part, and the moving device can fix and move the upper or sole of the shoe.

[0023] The sliding part is provided with at least one first telescopic mechanism, and the moving device is located at the telescopic end of the first telescopic mechanism.

[0024] The moving device is a clamping device or a suction cup device. The clamping device can clamp the shoe upper or the suction cup device can adhere to the shoe sole. When the moving device is a clamping device, the clamping device is provided with at least one insert or hole.

[0025] The number of sliding parts is at least two, the frame is provided with guide rails, the sliding parts can slide on the guide rails, and the guide rails form at least one closed loop structure.

[0026] The frame is provided with a fixed seat, the elastic film is placed on the fixed seat, the fixed seat is provided with a cavity above the elastic film, and the frame is provided with a glue filling device.

[0027] The frame is equipped with a second telescopic mechanism, which can drive the shoe mold to move toward the elastic film.

[0028] The frame is provided with a mounting base, and a reset mechanism is provided between the mounting base and the shoe mold. The second telescopic mechanism is provided with at least one pair of cooperating positioning holes and positioning pins between it and the shoe mold. The reset mechanism is at least one reset spring, and the second telescopic mechanism is a telescopic cylinder.

[0029] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:

[0030] 1. This utility model can apply glue stably and accurately. The elastic film is located between the shoe mold and the sole or upper. The shoe mold is closed with the sole or upper. The glue on the elastic film is applied to the sole or upper. The glue layer thickness is uniform and the bonding strength fluctuates little, reducing the risk of product delamination or separation. It can achieve stable and accurate glue application on the bonding surface of shoe upper materials with multiple materials and styles.

[0031] 2. Avoid glue clogging inside the glue spray valve and in the pipeline when using glue.

[0032] 3. It is suitable for various high-viscosity shoe upper adhesives, avoiding problems such as uneven glue lines, jagged edges, insufficient spread, and unevenness.

[0033] 4. The adhesive has high adaptability and can be used with various high-viscosity oil-based adhesives for bonding various shoe materials, avoiding the problems of glue overflow, fogged edges, and glue running down outside the bonding surface of the shoe upper when using water-based adhesives.

[0034] 5. Utilize automated equipment to improve production efficiency and replace traditional manual production, protecting against the health risks and hazards of human contact with glue during traditional manual glue application.

[0035] 6. The improved glue application process increases the equipment's adoption rate compared to fully automated production lines on the market. Due to its simple structure, it is a single-station device, avoiding the use of industrial robots, industrial cameras, and imported glue spray valves, thus significantly reducing the equipment's manufacturing cost.

[0036] 7. The second telescopic mechanism drives the shoe mold to move upward, lifting the elastic film to form a protrusion. A small amount of glue is located at the protrusion, while excess glue flows to the side, which can control the amount of glue and improve the accuracy and efficiency of glue application. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the adhesive application device of this utility model.

[0038] Figure 2 This is a partial structural diagram of the adhesive application device.

[0039] Figure 3 This is a partial structural diagram of the mold device.

[0040] Figure 4 This is a structural diagram of the second telescopic mechanism and the shoe mold.

[0041] Figure 5 This is an exploded view of the shoe mold and mounting base.

[0042] Figure 6 This is a schematic diagram of the structure of the elastic membrane and the fixed base.

[0043] Figure 7 This is a schematic diagram of the structure of the first telescopic mechanism and the clamping device.

[0044] Figure 8 This is a schematic diagram of the shoe last structure.

[0045] Figure 9 This is a schematic diagram of a glue application device having a first conveying device and a second conveying device.

[0046] Figure 10 This is a schematic diagram of the adhesive application device for applying adhesive to the sole of a shoe.

[0047] Figure label:

[0048] 1. Frame; 11. Sliding part; 12. Drive device; 13. Guide rail; 2. Elastic membrane; 21. Fixed base; 22. Cavity; 3. Shoe mold; 30. Positioning hole; 31. Shoe sole mold; 32. Shoe upper mold; 4. Mold device; 41. Mold wheel; 42. First drive mechanism; 43. Second telescopic mechanism; 430. Positioning pin; 44. Mounting base; 45. Reset mechanism; 5. Moving device; 51. Clamping device; 510. Insert strip; 52. Suction cup device; 6. First telescopic mechanism; 7. Shoe last; 70. Insertion hole; 8. First conveying device; 9. Second conveying device. Detailed Implementation

[0049] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0050] refer to Figures 1 to 10 This embodiment provides a gluing device for shoe uppers and soles, including a frame 1. An elastic film 2 is provided on the frame 1. The elastic film 2 is a liquid-impermeable film. The top surface of the elastic film 2 is a gluing surface for placing glue. A shoe mold 3 is provided on the frame 1 below the elastic film 2. During gluing, the elastic film 2 is located between the shoe mold and the shoe upper. The shoe mold 3 is closed with the shoe upper, and the glue on the elastic film 2 is applied to the sole or shoe upper.

[0051] The number of shoe molds 3 can also be one, and shoe mold 3 can also be fixed on the frame 1 and cannot be moved, and can be replaced manually.

[0052] Each shoe mold 3 is typically a different size to accommodate different sizes of shoe uppers.

[0053] The aforementioned elastic film 2 can be made of rubber, silicone or other materials to form an elastic film, which are well-known materials and will not be described in detail here.

[0054] In one embodiment, a mold device 4 is provided on the frame 1 below the elastic film 2. The mold device 4 has multiple shoe molds 3, each of which is a sole mold 31. The mold device 4 can move one of the shoe molds 3 to the glue application station.

[0055] When applying glue to the sole, shoe mold 3 is shoe upper mold 32.

[0056] In one embodiment, the mold device 4 includes a mold wheel 41 mounted on a frame 1, a first drive mechanism 42 for driving the mold wheel 41 to rotate, and a plurality of shoe molds 3 mounted on the mold wheel 41.

[0057] The aforementioned mold device 4 can also be a belt device or other devices, which are well-known devices and will not be described in detail here.

[0058] The aforementioned first drive mechanism 42 is a known device and will not be described in detail here.

[0059] In one embodiment, the frame 1 is slidably provided with three sliding parts 11, the frame 1 is provided with a driving device 12 for driving the sliding parts 11 to move, the sliding parts 11 are provided with a moving device 5, and the moving device 5 can fix and move the shoe upper or shoe sole.

[0060] The number of the aforementioned sliding parts 11 can be one, two, three, or even more, depending on the specific circumstances.

[0061] When three sliding parts 11 are provided, the three sliding parts 11 can work simultaneously, improving efficiency.

[0062] The aforementioned sliding part 11 is a roller, but it can also be a slide block or other sliding structure. These are well-known structures and will not be described in detail here.

[0063] The aforementioned drive device 12 may be a servo motor device or other devices, which are well-known devices and will not be described in detail here.

[0064] In one embodiment, the sliding part 11 is provided with a first telescopic mechanism 6, and the moving device 5 is provided at the telescopic end of the first telescopic mechanism 6.

[0065] The aforementioned sliding part 11 may also be omitted, and the shoe upper or sole may be placed manually on the clamping device 51 or suction cup device 52, depending on the specific situation.

[0066] In one embodiment, the moving device 5 is a clamping device 51, which is capable of clamping the shoe upper and is provided with an insert 510.

[0067] The aforementioned clamping device 51 can also clamp the sole of the shoe, depending on the specific situation.

[0068] A shoe last 7 is usually installed on the shoe upper. The shoe last 7 is provided with a hole 70 corresponding to the insert strip 510 for positioning. The insert strip 510 can also be replaced by the hole 70, that is, the shoe last 7 is provided with an insert strip 510 corresponding to the hole 70, depending on the situation.

[0069] refer to Figure 10 In one embodiment, the moving device 5 is a suction cup device 52, which can adhere to the sole of the shoe.

[0070] The suction cup device 52 is usually used for better adhesion to the sole, and the suction cup device 52 can also be used for adhesion and fixation to the upper, depending on the specific situation.

[0071] In one embodiment, the frame 1 is provided with a guide rail 13, and the sliding part 11 can slide on the guide rail 13, forming a closed loop structure.

[0072] The aforementioned sliding part 11 can be moved to the front end via the annular guide rail 13 to work in a cycle, thereby improving efficiency.

[0073] In one embodiment, a fixed seat 21 is provided on the frame 1, an elastic film 2 is provided on the fixed seat 21, a cavity 22 is provided on the fixed seat 21 above the elastic film 2, and a glue filling device is provided on the frame 1.

[0074] In one embodiment, the frame 1 is provided with a second telescopic mechanism 43, which can drive the shoe mold 3 to move toward the elastic film 2.

[0075] The second telescopic mechanism 43 can also be configured as a non-movable structure, with the second telescopic mechanism 43 fixed on the frame 1 to drive the shoe mold 3 to move.

[0076] The aforementioned second telescopic mechanism 43 may also be omitted, allowing the shoe mold 3 to be moved closer to the elastic film 2, depending on the specific circumstances.

[0077] In one embodiment, the frame 1 is provided with a mounting base 44, and a reset mechanism 45 is provided between the mounting base 44 and the shoe mold 3. The second telescopic mechanism 43 is provided with a positioning hole 30 and a positioning pin 430 that cooperate with each other between it and the shoe mold 3. The reset mechanism 45 is a reset spring, and the second telescopic mechanism 43 is a telescopic cylinder.

[0078] The aforementioned reset mechanism 45 can also be a rubber band or other components capable of reset, which are known components and will not be described in detail here.

[0079] The upper or sole of this invention can also be manually operated, with the upper or sole being picked up and moved toward the elastic film 2 and the shoe mold 3.

[0080] refer to Figure 9 In one embodiment, the frame 1 is further provided with a first conveying device 8 and a second conveying device 9, the first conveying device 8 being located at the front end of the elastic film 2 and the second conveying device 9 being located at the rear end of the elastic film 2.

[0081] The first conveying device 8 and the second conveying device 9 mentioned above can be conveyor belt devices or other devices, which are well-known devices and will not be described in detail here.

[0082] The above-mentioned glue-applying device can apply glue to the elastic film 2 at regular intervals and in a quantitative manner. It is not shown in the figure, but is a well-known device and will not be described in detail here. Alternatively, the above-mentioned glue-applying device can be omitted and glue can be applied manually, depending on the specific situation.

[0083] The aforementioned clamping device 51 and suction cup device 52 are known devices and will not be described in detail here.

[0084] The working principle of this utility model is as follows:

[0085] When applying glue to the shoe upper, the shoe mold 3 is the shoe upper mold 32. The first driving mechanism 42 drives the corresponding shoe mold 3 to the glue application station. The clamping device 51 clamps the shoe upper and moves it above the shoe mold 3 and the elastic film 2. The second telescopic mechanism 43 drives the shoe mold 3 to move and lift the elastic film 2 to form a protrusion. A small amount of glue is located at the protrusion, and the excess glue will flow to the side. The first telescopic mechanism 6 is activated to move the shoe upper downward and close it with the shoe mold 3. The glue on the elastic film 2 is applied to the shoe upper. The glue layer thickness is uniform and the bonding strength fluctuates little, reducing the risk of product delamination or separation. This achieves stable and precise glue application on the bonding surface of shoe upper materials with multiple materials and styles.

[0086] refer to Figure 10 When applying glue to the sole, the shoe mold 3 is the sole mold 31, and the clamping device 51 is replaced by the suction cup device 52. The sole is adsorbed by the suction cup device 52, and the glue application method is the same as the above-mentioned upper glue application method, which will not be described again here.

[0087] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A gluing device for shoe uppers and soles, characterized in that: The device includes a frame on which an elastic membrane is provided. The elastic membrane is a liquid-impermeable membrane. The top surface of the elastic membrane is a glue application surface for placing glue. The frame has at least one shoe mold located below the elastic membrane. During glue application, the elastic membrane is located between the shoe mold and the sole or upper of the shoe. The shoe mold is closed with the sole or upper of the shoe, and the glue on the elastic membrane is applied to the sole or upper of the shoe.

2. The adhesive application device for shoe uppers and soles according to claim 1, characterized in that: The frame is provided with a mold device located below the elastic film. The mold device has multiple shoe molds, which are sole molds and / or upper molds. The mold device is capable of moving one of the shoe molds to the glue application station.

3. The adhesive application device for shoe uppers and soles according to claim 2, characterized in that: The mold device includes a mold wheel mounted on a frame, a first drive mechanism for driving the mold wheel to rotate, and multiple shoe molds mounted on the mold wheel.

4. The adhesive application device for shoe uppers and soles according to claim 1, characterized in that: At least one sliding part is slidably provided on the frame, and a driving device is provided on the frame to drive the sliding part to move. A moving device is provided on the sliding part, and the moving device can fix and move the upper or sole of the shoe.

5. The adhesive application device for shoe uppers and soles according to claim 4, characterized in that: The sliding part is provided with at least one first telescopic mechanism, and the moving device is located at the telescopic end of the first telescopic mechanism.

6. The gluing device for shoe uppers and soles according to claim 4, characterized in that: The moving device is a clamping device or a suction cup device. The clamping device can clamp the shoe upper or the suction cup device can adhere to the shoe sole. When the moving device is a clamping device, the clamping device is provided with at least one insert or hole.

7. The adhesive application device for shoe uppers and soles according to claim 4, characterized in that: The number of sliding parts is at least two, the frame is provided with guide rails, the sliding parts can slide on the guide rails, and the guide rails form at least one closed loop structure.

8. The adhesive application device for shoe uppers and soles according to claim 1, characterized in that: The frame is provided with a fixed seat, the elastic film is placed on the fixed seat, the fixed seat is provided with a cavity above the elastic film, and the frame is provided with a glue filling device.

9. A gluing device for shoe uppers and soles according to any one of claims 1 to 8, characterized in that: The frame is equipped with a second telescopic mechanism, which can drive the shoe mold to move toward the elastic film.

10. The adhesive application device for shoe uppers and soles according to claim 9, characterized in that: The frame is provided with a mounting base, and a reset mechanism is provided between the mounting base and the shoe mold. The second telescopic mechanism is provided with at least one pair of cooperating positioning holes and positioning pins between it and the shoe mold. The reset mechanism is at least one reset spring, and the second telescopic mechanism is a telescopic cylinder.

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