Bottom-mold-free bottom pressing equipment

Abstract

The invention relates to sole-mold-free sole pressing equipment and belongs to the field of shoemaking, the sole-mold-free sole pressing equipment comprises an upper mold and a lower mold located below the upper mold, a transferring mechanism is arranged beside the upper mold, the transferring mechanism and the upper mold are connected with a transverse moving mechanism, the transverse moving mechanism drives the transferring mechanism and the upper mold to alternately move to the position over the lower mold, and / or the lower mold is connected with the transverse moving mechanism. The lower die is driven by the transverse moving mechanism to alternately move between the position under the transferring mechanism and the position under the upper die. The transfer mechanism is configured to pick up the shoes right above the lower mold, transfer the shoes into the lower mold and take away the shoes subjected to sole pressing in the lower mold; and the upper die comprises a gland. According to the sole-mold-free sole pressing equipment, the transferring mechanism and the transverse moving mechanism are arranged, the transverse moving mechanism is matched with the transferring mechanism to replace manual feeding and discharging operation of shoes, the sole pressing speed is increased, the sole pressing efficiency is improved, and unmanned automatic assembly line type sole pressing operation of the shoes is achieved.

Description

Technical Field

[0001] This application relates to the field of footwear manufacturing, and in particular to a sole-molding device that eliminates the need for sole molding. Background Technology

[0002] The sole-free molding machine works by placing the shoes to be molded into the shoe placement area of ​​the mold cavity, and then injecting oil or air into the mold cavity to squeeze the lower bladder and compress the volume of the shoe placement area, thereby completing the sole pressing operation.

[0003] Compared to traditional wall-mounted sole pressers, sole pressers that do not require a sole mold eliminate the hassle of configuring sole molds for each shoe type, and have gradually become the mainstream choice for sole pressers.

[0004] However, current sole-pressing machines still have some problems in actual use. For example, manual loading and unloading of shoes is required during the pressing process, and the pressing speed is slow and the efficiency is low. Summary of the Invention

[0005] In order to improve the pressing efficiency of the bottom pressing equipment without a bottom mold, this application provides a bottom pressing equipment without a bottom mold.

[0006] In one aspect of this disclosure, a bottom-pressing device without a bottom mold is provided, including an upper mold and a lower mold located below the upper mold. A transfer mechanism is provided next to the upper mold, and a transverse transfer mechanism is connected to the upper mold. The transverse transfer mechanism drives the transfer mechanism and the upper mold to move alternately to directly above the lower mold, or the lower mold is connected to the transverse transfer mechanism, and the transverse transfer mechanism drives the lower mold to move alternately between directly below the transfer mechanism and directly below the upper mold. The transfer mechanism is configured to pick up the shoes when it is directly above the lower mold, transfer the shoes to the lower mold, and remove the shoes that have been pressed in the lower mold; The upper mold includes a pressure cap, which includes an upper mold body, an upper rim and an upper bladder located on the lower surface of the upper mold body, and the upper bladder is located inside the upper rim.

[0007] By adopting the above technical solution, the lateral movement mechanism, in conjunction with the transfer mechanism, can replace manual labor in the loading and unloading of shoes, improving the pressing speed and efficiency, and also realizing unmanned automated assembly line pressing of shoes.

[0008] Preferably, the transfer mechanism includes a swing arm mechanism and a clamp. The swing arm mechanism includes a drive component and a rocker arm that is pulsatorically connected to the drive component. The rocker arm is hinged to the upper end of the clamp. The drive component drives the rocker arm to swing, causing the clamp to move around the swing center of the rocker arm. During the movement, the upper and lower ends of the clamp remain relatively stationary.

[0009] By adopting the above technical solution, the transfer mechanism can drive the clamp to make a curved motion with an arc trajectory on the vertical plane to transfer the shoe from one workstation to another. During the transfer process, the clamp always maintains a vertical and stable posture without swaying, the shoe is transferred smoothly, the transfer path is much smaller than that of the traditional XYZ three-axis transfer mechanism, and the transfer speed is fast and the time is short, which effectively improves the transfer efficiency and the production efficiency of the sole pressing machine.

[0010] Preferably, the swing arm mechanism further includes: The mounting component has a horizontally sliding frame mounted on it, and a vertically sliding frame mounted on the horizontally sliding frame. The clamp is connected to the vertically sliding frame.

[0011] By adopting the above technical solution, the clamp can maintain a vertical and stable posture throughout the transfer process without swinging, thus ensuring that the shoes are transferred stably.

[0012] Preferably, the rocker arm and the clamp are hinged together by a wheel axle. The rocker arm mechanism also includes a pair of transmission wheels with equal diameters and a flexible member tightly fitted on the pair of transmission wheels. One of the transmission wheels is coaxial with the rocker arm swing center and is configured to remain fixed during the rocker arm swing. The other transmission wheel is coaxially and fixedly connected to the wheel axle. The clamp is fixedly connected to the wheel axle.

[0013] By adopting the above technical solution, the clamp can maintain a vertical and stable posture throughout the transfer process without swinging, thus ensuring that the shoes are transferred stably.

[0014] Preferably, the driving component is fixedly connected to a connecting component, and multiple spaced and parallel wheel axles are rotatably mounted on the connecting component. There are multiple rocker arms, which are spaced and parallel and are all hinged to the clamp. Each rocker arm is fixedly connected to one wheel axle, and the multiple wheel axles are connected to the driving component for transmission.

[0015] By adopting the above technical solution, the clamp can maintain a vertical and stable posture throughout the transfer process without swinging, thus ensuring that the shoes are transferred stably.

[0016] Preferably, the clamps are a pair and spaced apart. The pair of clamps are hinged to the same connecting rod, and the movement of one clamp around the swing center of the rocker arm drives the other clamp to move synchronously through the connecting rod.

[0017] By adopting the above technical solution, the two clamps can move synchronously, picking up the shoes and transferring them to the bottom pressing module, and removing the shoes from the bottom pressing module after they have been pressed are done simultaneously.

[0018] Preferably, the clamp includes a frame and a push-pull component mounted on the frame. A movable block is installed at the telescopic end of the push-pull component. Each end of the movable block is hinged with a clamping arm 1. A clamping arm 2 is hinged to the clamping arm 1. The middle part of the clamping arm 2 bends towards the frame and is hinged to the frame. A clamping arm 3 is hinged to the end of the clamping arm 2 away from the clamping arm 1. The end of the clamping arm 3 near the clamping arm 2 is also hinged to the frame via a connecting rod. The push-pull component drives the movable block to move, and through the clamping arm 1, clamping arm 2, and connecting rod, the pair of clamping arms 3 move closer to each other or further away from each other.

[0019] By adopting the above technical solution, a pair of clamping arms move closer to each other to clamp the shoe. Compared with the traditional figure-eight clamp, this clamping method has a more stable clamping force, the shoe is less likely to fall off, and it can clamp various shoe types, making it widely applicable.

[0020] Preferably, the upper bladder is elastic, the upper bladder is hollow inside, and the upper mold body is provided with a pipe joint communicating with the interior of the upper bladder. The pipe joint is configured to fill the interior of the upper bladder with filler to change the volume of the upper bladder.

[0021] By adopting the above technical solution, the upper bladder can change its size by filling it with filler material to adapt to the pressure requirements of different shoe models, thus solving the problem of poor universality of existing pressure blocks.

[0022] Preferably, the lower surface of the upper mold body is recessed inward to form a receiving hole, which is located next to the upper bladder body.

[0023] By adopting the above technical solution, the upper part of the shoe, the collar, the tongue, the lining and other parts of the shoe with a large heel can be inserted into the receiving hole, thereby meeting the pressing requirements of such shoes with a large heel, while keeping the shoe placement area and the depth of the mold cavity unchanged, without increasing the amount of air / oil consumed.

[0024] Preferably, a pressure post is provided in the receiving hole, the pressure post is fixedly connected to the upper mold body, and the pressure post can be adjusted to slide relative to the upper mold body at a distance from the opening of the receiving hole.

[0025] By adopting the above technical solution, shoes of different heights can be pressed and fixed in the shoe placement area for high-quality sole pressing.

[0026] Preferably, the lower mold includes a lower mold body, a lower bladder, and a support plate. The upper surface of the lower mold body is recessed inward to form a mold cavity. An elastic lower bladder is provided in the mold cavity. The lower bladder seals the mold cavity and extends downward to form a shoe placement area for placing shoes. The lower mold body is provided with several through holes II communicating with the mold cavity. The several through holes II are configured to fill the mold cavity with filler to compress the volume of the shoe placement area and to allow the filler in the mold cavity to leave the mold cavity. A support plate is fixedly or vertically installed in the mold cavity. The support plate is located below the lower bladder and is used to support the shoes in the shoe placement area. An elastic pad is provided on the upper surface of the support plate. The elastic pad is configured to reduce its thickness when pressed down by the shoes.

[0027] By adopting the above technical solution, the elastic pads can support the shoes in the shoe placement area and smoothly lower them to the pressing position. After pressing is complete, the pressure cap moves upward, and the pressed elastic pads help the shoes rise smoothly to the shoe retrieval position, where the shoes awaiting pressing can be removed. This design eliminates the need to place shoes deep into the bottom of the shoe placement area, shortening the shoe retrieval time and improving efficiency. Furthermore, the elastic pads support the shoes, helping to maintain their stability and preventing wobbling during pressing, thus ensuring pressing quality. Simultaneously, the elastic pads, in conjunction with the pressure caps, ensure that the highest point of shoes of different heights is always pressed against the caps, thus fixing different shoe types in place and preventing tilting of the shoes during air / oil inflation / pressurization of the mold cavity, which would affect the pressing quality. This further expands the versatility of the sole-free mold pressing equipment.

[0028] Preferably, the second through hole includes an air inlet and an air outlet. The air inlet includes an air inlet one and an air inlet two. The air pressures of the air inlet one and the air inlet two are different when they are used to fill the mold cavity. The lower mold further includes a throttle module, which includes: A gas storage device 1, wherein the inlet end of the gas storage device 1 is connected to a pressurizing device, the inlet end of the pressurizing device is connected to a gas supply pipe 1, the outlet end of the gas storage device 1 is connected to an inlet pipe 1, a control valve 1 is provided on the inlet pipe 1, and the outlet end of the inlet pipe 1 is connected to an inlet port 1. Gas storage device 2, the outlet end of the gas storage device 2 is connected to the inlet pipe 2 and the supply pipe 2, the inlet pipe 2 is equipped with the control valve 2, the outlet end of the inlet pipe 2 is connected to the inlet hole 2, the supply pipe 2 is connected to the inlet end of the booster device, the supply pipe 2 is equipped with the control valve 4, the inlet end of the gas storage device 2 is connected to the exhaust pipe, the exhaust pipe is equipped with the control valve 3, the inlet end of the exhaust pipe is connected to the exhaust hole; The air pressure detection device is installed on the first air storage device and the second air storage device.

[0029] By adopting the above technical solution, the gas supplied by the external air source through the air supply pipe is pressurized by the pressurizing device to form a high-pressure gas source, which is stored in the air storage device. The high-pressure gas is then supplied to the lower mold through the air inlet pipe. At the same time, the gas recovered from the exhaust pipe is stored in the air storage device and then supplied to the lower mold again through the air inlet pipe. This reduces the amount of external air source used, thereby reducing the cost of shoe sole pressing.

[0030] Preferably, the surface of the tray is provided with a through hole running vertically through the tray.

[0031] By adopting the above technical solution, the gas / liquid flow can be evenly distributed and flow upwards, fully squeezing the bottom of the lower bladder. This avoids uneven gas / liquid flow distribution, which can cause localized severe deformation at the bottom of the lower bladder, leading to the shoe deviating from the correct posture and affecting the quality of the sole pressing.

[0032] Preferably, the bottomless molding equipment further includes: The feeding mechanism is designed to convey shoes to the transfer mechanism; The discharge mechanism is designed to remove shoes from the transfer mechanism.

[0033] By adopting the above technical solution, unmanned automated sole pressing operation of shoes can be realized in an assembly line manner, with high pressing efficiency.

[0034] Beneficial technical effects: The sole-pressing equipment of this application is equipped with a transfer mechanism and a lateral movement mechanism. The lateral movement mechanism, together with the transfer mechanism, can replace manual labor in the loading and unloading of shoes, improve the pressing speed and efficiency, and realize unmanned automated assembly line pressing operation of shoes. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of the bottomless molding and pressing device in one embodiment of this application. Figure 1 .

[0036] Figure 2 This is a schematic diagram of the structure of the bottomless molding and pressing device in one embodiment of this application. Figure 2 .

[0037] Figure 3 yes Figure 1 Schematic diagram of the middle transfer mechanism and upper mold Figure 1 .

[0038] Figure 4 This is a schematic diagram of the structure of the mold in this application.

[0039] Figure 5 yes Figure 1 Schematic diagram of the middle transfer mechanism and upper mold Figure 2 The upper part of the mold in the picture has been removed.

[0040] Figure 6 yes Figure 1 Schematic diagram of the middle transfer mechanism and upper mold Figure 3 .

[0041] Figure 7 The internal structure of the lower mold of this application Figure 1 ; Figure 8 The internal structure of the lower mold of this application Figure 2 ; Figure 9This is a schematic diagram of the transfer mechanism in another embodiment of this application; Figure 10 This is a schematic diagram of the fixture in this application; Figure 11 This is a schematic diagram of the structure of the bottomless molding device in another embodiment of this application; Figure 12 This is a schematic diagram of the throttle module.

[0042] Figure 13 This is a schematic diagram of the transfer mechanism in another embodiment of this application.

[0043] Figure 14 This is a schematic diagram of the transfer mechanism in other embodiments of this application.

[0044] Explanation of reference numerals in the attached figures: 1. Machine base; 2. Lower mold body; 3. Lower bladder body; 4. Mold cavity; 5. Support plate; 6. Lifting device II; 7. Shoe; 8. Exhaust port; 9. Air inlet I; 10. Air inlet II; 11. Feeding mechanism; 12. Two-axis robot; 121. Motor 1; 122. Rack 1; 123. Mounting bracket 1; 124. Motor 2; 125. Rack 2; 126. Mounting bracket 2; 13. Discharge mechanism; 14. Lifting device one; 141. Motor three; 142. Rack three; 143. Lifting frame; 144. Guide rod; 145. Lifting component; 15. Upper mold body; 151. Pipe fitting; 16. Upper edge; 17. Upper pocket body; 18. Lower edge; 19. Upper template; 20. Shoe placement area; 21. Receiving hole; 22. Pressure column; 23. Hole cover; 24. Lateral movement mechanism one; 25. Elastic pad; 26. Swing arm mechanism; 261. Connecting rod; 262. Mounting component; 263. Drive component; 264. Rocker arm; 265. Vertical slide; 266. Horizontal slide; 267. Connecting component; 2612. Pulley 1; 2613. Pulley 2; 2614. Synchronous belt; 2615. Wheel axle 1; 2616. Synchronous rod; 2617. Wheel axle 2; 2618. Sprocket; 2619. Synchronous chain; 27. Fixture; 270. Clamping block; 271. Push-pull component; 272. Frame; 273. Movable block; 274. Clamping arm one; 275. Clamping arm two; 276. Fixed block; 277. Connecting rod; 278. Clamping arm three; 2781. Crossbeam; 279. Movable seat; 2710. Limiting post; 2711. Clamping surface; 28. Throttle module; 281. Gas storage device one; 282. Boost device; 283. Gas supply pipe one; 284. Intake pipe one; 285. Exhaust pipe; 286. Gas storage device two; 287. Intake pipe two; 288. Control valve two; 289. Control valve one; 290. Control valve three; 291. Silencer; 292. Gas supply pipe two; 293. Air pressure detection device; 294. Control valve four; 30. Lateral movement mechanism 2; 31. Top frame; 32. Material conveying mechanism. Detailed Implementation

[0045] The following is in conjunction with the appendix Figures 1-11 This application will be described in further detail.

[0046] In one aspect of this disclosure, a bottom-pressing device without a bottom mold is provided, comprising an upper mold and a lower mold located below the upper mold, such as... Figure 1 and Figure 11 As shown, the lower mold is installed on the machine base 1, and the top frame 31 is fixedly installed above the machine base 1. The upper mold is installed on the top frame 31, and a transfer mechanism is provided next to the upper mold. The transfer mechanism is also installed on the top frame 31.

[0047] The transfer mechanism and the upper mold are connected by a transverse mechanism, which drives the transfer mechanism and the upper mold to move alternately to directly above the lower mold, and / or the lower mold is connected by a transverse mechanism, which drives the lower mold to move alternately between directly below the transfer mechanism and directly below the upper mold.

[0048] Specifically, when the transverse mechanism is connected to the lower mold, the transverse mechanism is referred to as transverse mechanism 24, and transverse mechanism 24 is installed on the machine base 1.

[0049] As an example, such as Figure 1 and Figure 2 As shown, the transverse movement mechanism 24 includes a motor and a rack. The rack is arranged along the transverse movement direction and is fixedly connected to the machine base 1. The motor is connected to the lower mold and meshes with the rack. With this design, the motor can drive the lower mold to move transversely when it is started, so that the lower mold can move alternately between directly below the transfer mechanism and directly below the upper mold.

[0050] Specifically, when the transverse mechanism is connected to the transfer mechanism and the upper mold, the transverse mechanism is referred to as transverse mechanism 2 30, and transverse mechanism 2 30 is installed on the top frame 31.

[0051] As an example, such as Figure 11 As shown, the second transverse mechanism 30 is a cylinder or a linear motor. The second transverse mechanism 30 drives the transfer mechanism and the upper mold to move laterally, so that the transfer mechanism and the upper mold move alternately to the top of the lower mold.

[0052] In this embodiment of the disclosure, the transfer mechanism is configured to pick up the shoe 7 when it is directly above the lower mold, transfer the shoe 7 to the lower mold, and remove the shoe 7 after it has been pressed in the lower mold.

[0053] Preferably, when the transfer mechanism is working, it picks up the shoe 7 and transfers the shoe 7 to the lower mold and removes the shoe 7 that has been pressed in the lower mold at the same time, thereby further shortening the shoe 7 transfer time and improving the pressing speed and efficiency.

[0054] As an example, the transfer mechanism is as follows: Figure 3 , Figure 5 and Figure 6 As shown, it is a two-axis robot 12, including a first motor 121, a first rack 122, a first mounting bracket 123, a second motor 124, a second rack 125, a second mounting bracket 126, and a clamp 27, as follows. Figure 3 As shown, rack 122 is vertically arranged and fixedly connected to top frame 31. Motor 121 meshes with rack 122 and is fixedly mounted on mounting frame 123. When motor 121 starts, it drives mounting frame 123 to rise and fall. Mounting frame 2 126 is horizontally slidably mounted on mounting frame 123. Rack 2 125 is fixedly mounted on mounting frame 2 126. Motor 2 124 is fixedly mounted on mounting frame 123 and meshes with rack 2 125. When motor 2 124 starts, it drives mounting frame 2 126 to slide horizontally on mounting frame 123. Clamps 27 are installed below both ends of mounting frame 2 126 in the horizontal sliding direction. One clamp 27 is used to pick up shoe 7 and transfer it to the lower mold. The other clamp 27 is used to remove shoe 7 from the lower mold after the sole has been pressed. The two clamps 27 operate synchronously, simultaneously picking up shoe 7, transferring it to the lower mold, and removing shoe 7 from the lower mold after the sole has been pressed.

[0055] Of course, in other embodiments, the transfer mechanism may also be as follows: Figure 9 As shown, it includes a swing arm mechanism 26 and a clamp 27. The clamp 27 is used to hold shoes. The swing arm mechanism 26 includes a drive component 263 and a rocker arm 264 that is pulsatorically connected to the drive component 263. The rocker arm 264 is hinged to the upper end of the clamp 27. The drive component 263 drives the rocker arm 264 to swing, causing the clamp 27 to move around the swing center of the rocker arm 264. During the movement, the upper and lower ends of the clamp 27 remain relatively stationary.

[0056] Optionally, one end of the rocker arm 264 is connected to the drive component 263, and the other end is hinged to the upper end of the clamp 27. The drive component 263 is used to drive the rocker arm 264 to rotate and swing. Commonly, the drive component 263 is a motor, electric motor, etc.

[0057] The rocker arm 264 is hinged to the upper end of the clamp 27. Therefore, the rocker arm 264 swings and drives the clamp 27 to make a curved motion around the swing center of the rocker arm 264 with a circular trajectory. The clamp 27 always remains vertical and does not swing during the curved motion. That is, the upper and lower ends of the clamp 27 remain relatively stationary during the movement.

[0058] By adopting the above technical solution, the transfer mechanism can drive the clamp 27 to make a curved motion with an arc trajectory on the vertical plane to transfer the shoe from one workstation to another. During the transfer process, the clamp 27 always maintains a vertical and stable posture without swaying, and the shoe is transferred smoothly. The transfer path is much smaller than that of the traditional XYZ three-axis transfer mechanism. Moreover, when moving in a curved motion, the moving speed of the clamp 27 can be designed to be faster than that of the XYZ three-axis transfer mechanism, so the time is shorter, significantly improving the shoe transfer efficiency and effectively improving the production efficiency of the sole pressing machine.

[0059] In this embodiment of the disclosure, the clamp 27 remains vertical and does not oscillate during the curved motion by means of the following: Figure 9 As shown, the swing arm mechanism 26 further includes: Mounting component 262 has a horizontally slidable horizontal slide 266 mounted on it, and a vertical slide 265 is vertically slidable on the horizontal slide 266. The clamp 27 is connected to the vertical slide 265. This design ensures that the clamp maintains a vertical and stable posture during the transfer process, preventing swaying and guaranteeing the stable transfer of the shoe.

[0060] Correspondingly, besides the design where the rocker arm 264 is hinged to the upper end of the clamp 27, the vertical slide 265 can also be hinged to the rocker arm 264, such as... Figure 9 As shown.

[0061] Of course, in other embodiments, the clamp 27 can also remain vertical and not swing during the curved motion in the following two ways.

[0062] Method 1: For example Figure 13 As shown, the rocker arm 264 and the clamp 27 are hinged together by a wheel axle 2615. The rocker arm mechanism 26 also includes a pair of transmission wheels with equal diameters and a flexible member tightly fitted on the pair of transmission wheels. One of the transmission wheels is coaxial with the swing center of the rocker arm 264 and is configured to remain fixed during the swing of the rocker arm 264. The other transmission wheel is coaxially and fixedly connected to the wheel axle 2615. The clamp 27 is fixedly connected to the wheel axle 2615.

[0063] By adopting the above technical solution, the clamp 27 can always maintain a vertical and stable posture during the transfer process, without swinging, thus ensuring that the shoes are transferred stably.

[0064] Specifically, a pair of drive wheels can be Figure 13The pulley 2612 and pulley 2613 shown in the diagram can also be... Figure 14 The sprocket 2618 shown in the diagram has a flexible element of timing belt 2614 when the drive wheel is a pulley, and a flexible element of timing chain 2619 when the drive wheel is sprocket 2618. Figure 13 The first pulley 2612 and the connecting part 267 are fixedly connected. When the rocker arm 264 swings, the first pulley 2612 does not rotate, thus driving the second pulley 2613 to rotate through the synchronous belt 2614. The rotation of the second pulley 2613 drives the clamp 27 to rotate synchronously around the first wheel shaft 2615 to counteract the swing of the rocker arm 264. In this way, the clamp 27 can always maintain a stable posture during the swing of the rocker arm 264. The clamp 27 is always vertical, and the upper and lower ends of the clamp 27 remain relatively stationary during the movement.

[0065] Method 2: For example Figure 14 As shown, the driving component 263 is fixedly connected to a connecting component 267. Multiple spaced and parallel axles 2617 are rotatably mounted on the connecting component 267. Multiple rocker arms 264 are also spaced and parallel, and each is hinged to the clamp 27. Each rocker arm 264 is fixedly connected to one axle 2617, and the multiple axles 2617 are connected to the driving component 263 via a transmission connection. The driving component 263 drives the multiple axles 2617 to rotate, which in turn drives the multiple rocker arms 264 to swing. The multiple rocker arms 264 swing synchronously, ensuring that the clamp 27 maintains a vertical and stable posture during the transfer process, preventing swaying and ensuring the shoes are transferred stably.

[0066] To facilitate the hinged connection of multiple rocker arms 264 to the clamp 27, multiple rocker arms 264 can be hinged together to the synchronizing rod 2616. The clamp 27 is installed at the lower end of the synchronizing rod 2616. Figure 14 As shown.

[0067] In practical implementation, either a drive component 263 can be configured for each wheel axle 2617, or... Figure 14 As shown, a sprocket 2618 is coaxially fixed on each axle 2617, and multiple sprockets 2618 are connected by a synchronous chain 2619. Thus, a single drive unit 263 can drive multiple axles 2617 to rotate synchronously.

[0068] Of course, the sprocket 2618 on each axle 2617 can also be replaced with Figure 13 The pulley shown has the synchronization chain 2619 replaced with... Figure 13 The synchronous belt shown is 2614.

[0069] The transfer mechanism described in the foregoing embodiment has only one clamp 27. In other embodiments, the transfer mechanism may have a pair of clamps 27, such as... Figure 9As shown, the rocker arm 264 is rotatably connected to the mounting component 262. Each clamp 27 has a pair, spaced apart. The pair of clamps 27 are hinged to the same connecting rod 261. One clamp 27 moves around the swing center of the rocker arm 264, driving the other clamp 27 to move synchronously via the connecting rod 261. This design allows the two clamps 27 to move synchronously. While one clamp 27 picks up a shoe and moves it to the bottom-pressing module 22, the other clamp 27 removes the shoe from the bottom-pressing module 22 after it has been pressed. Both actions occur simultaneously, and at this time, only one drive component 263 is needed to drive the pair of rocker arms to swing.

[0070] When the transfer mechanism described in the foregoing embodiment has only one clamp 27, two transfer mechanisms can be set in the wall-mounted bottom pressing machine. One transfer mechanism is used to pick up the shoes and transfer them to the bottom pressing module 22, and the other transfer mechanism is used to remove the shoes that have been pressed in the bottom pressing module 22.

[0071] Preferably, the clamp 27 is a parallel clamp. Compared with the traditional figure-eight clamp, the parallel clamp has a more stable clamping force, making it less likely for the shoe 7 to fall off. It can clamp various shoe types and has a wide range of applications.

[0072] Specifically, such as Figure 10 As shown, the parallel clamp includes a frame 272 and a push-pull component 271 mounted on the frame 272. A movable block 273 is installed at the telescopic end of the push-pull component 271. A clamping arm 274 is hinged to each of the left and right ends of the movable block 273. A clamping arm 275 is hinged to the end of the clamping arm 274 away from the movable block 273. The middle part of the clamping arm 275 bends towards the frame 272 and is hinged to the frame 272. Of course, in other embodiments, the middle part of the clamping arm 275 can also be hinged to a fixed block 276, and the fixed block 276 is fixedly connected to the frame 272.

[0073] continue Figure 10 As shown, one end of clamping arm 275 is hinged to clamping arm 274, and the other end of clamping arm 275 is hinged to clamping arm 278. The upper end of clamping arm 278 is provided with a crossbeam 2781. The two transverse ends of the crossbeam 2781 are respectively hinged to clamping arm 275 and connecting rod 277. Clamping arm 275 is located at the end of the crossbeam 2781 away from the frame 272. The end of the connecting rod 277 away from the crossbeam 2781 is hinged to the frame 272. The lower end of clamping arm 278 is provided with a clamping block 270 facing the side of another clamping arm 278. The clamping block 270 is fixedly installed on the movable seat 279. The movable seat 279 is hinged to clamping arm 278 through a limiting post 2710.

[0074] When the parallel clamp is working, with Figure 10For example, the push-pull component 271 drives the movable block 273 to rise and fall, which in turn drives the first clamping arm 274, the second clamping arm 275, and the connecting rod 277 to swing. The swinging of the first clamping arm 274, the second clamping arm 275, and the connecting rod 277 causes a pair of third clamping arms 278 to move diagonally upwards and away from each other or diagonally downwards and closer to each other. During the process of the pair of third clamping arms 278 moving away from each other or closer to each other, the third clamping arms 278 only translate and do not swing. The clamping surface 2711 of the clamping block 270 on the pair of third clamping arms 278 always remains vertical. With this design, the clamping surface 2711 of the parallel clamp is vertical at any height position, which can ensure maximum contact surface when clamping different shoe types, and the clamping is stable and reliable.

[0075] Furthermore, such as Figure 10 As shown, multiple clamping blocks 270 are hinged to the lower side of the clamping arm 278. This design can adapt to the sides of various shoe shapes and make multiple contacts with the sides of the shoe, so that various shoe shapes can be firmly clamped with excellent clamping effect.

[0076] In the embodiments disclosed herein, such as Figures 1-6 As shown, the upper mold includes a pressure cap and a lifting device 14 located above the pressure cap. The upper and lower ends of the lifting device 14 are respectively connected to the top frame 31 and the pressure cap, and are used to drive the pressure cap to lift and lower to cooperate with the lower mold to complete the pressing operation of the shoe 77.

[0077] like Figure 2 , Figure 4 and Figure 5 As shown, the pressure cap includes an upper mold body 15, an upper rim 16 and an upper bladder 17 located on the lower surface of the upper mold body 15. The upper bladder 17 is located inside the upper rim 16. The upper rim 16 is used to protect the lower bladder 3 during the pressing process of the shoe 7, preventing the lower bladder 3 from contacting the shoe last during the pressing process and being punctured by the shoe last. Therefore, the upper rim 16 and the lower rim 18 have the same function, which is to protect the lower bladder 3.

[0078] Of course, in other embodiments, the cap may not include the upper edge 16. In this case, the shoe last needs to be surface treated to avoid damaging the lower bladder 3.

[0079] Furthermore, the upper capsule 17 is elastic, and the interior of the upper capsule 17 is hollow, such as... Figure 6As shown, the upper mold body 15 is provided with a pipe joint 151 communicating with the interior of the upper bladder body 17. The pipe joint 151 is configured to fill the interior of the upper bladder body 17 with filler material to change the volume of the upper bladder body 17. This design allows the upper bladder body 17 to change its size by filling with filler material, adapting to the pressure requirements of different shoe models and solving the problem of poor universality of existing pressure blocks. Because different shoe models have different toe heights, or require different downward pressure from the upper bladder body 17, these differences can be addressed by changing the volume of the upper bladder body 17, thus effectively meeting the pressure requirements of different shoe models, exhibiting high universality and wide application range.

[0080] In this embodiment, the upper capsule 17 is made of an elastic material so that it can expand by filling it with a filler, changing its volume, and shrink by removing the filler. Specifically, the filler can be solid particles, gas, liquid, or other substances, preferably gas or liquid.

[0081] Specifically, such as Figure 2 , Figure 4 and Figure 6 As shown, the lifting device 14 includes: a lifting frame 143, a motor 141, a rack 142, a guide rod 144, and a lifting component 145. The lower end of the lifting frame 143 is connected to the upper mold body 15. The motor 141 is fixedly connected to the upper end of the lifting frame 143. The rack 142 is vertically arranged and slidably connected to the upper end of the lifting frame 143. The rack 142 is connected to the motor 141 for transmission. When the motor 141 starts, it drives the rack 142 to rise and fall. The lower end of the rack 142 is connected to the lifting component 145. The rack 142 drives the lifting component 145 to rise and fall. The lifting component 145 is connected to the lifting frame 143. The rise and fall of the lifting component 145 drives the upper mold body 15 at the lower end of the lifting frame 143 to rise and fall. The lower end of the guide rod 144 is connected to the upper mold body 15, and the upper end is axially slidably connected to the lifting component 145 and the upper end of the lifting frame 143. The guide rod 144 ensures that the lifting frame 143 rises and falls smoothly, the structure is stable, and the failure rate is low.

[0082] Furthermore, such as Figure 5 As shown, the lower surface of the upper mold body 15 is provided with an upper template 19. The upper bladder body 17, the upper perimeter 16, and the upper template 19 are integrally formed. The upper bladder body 17 and the upper perimeter 16 are located on the lower surface of the upper template 19. This design facilitates the installation and replacement of the upper bladder body 17 and the upper perimeter 16.

[0083] In the embodiments disclosed herein, such as Figure 5As shown, the lower surface of the upper mold body 15 is recessed inward to form a receiving hole 21. The receiving hole 21 is located next to the upper bladder body 17. This design allows the upper part of the shoe 7, such as the heel, the collar, the tongue, and the lining, to be inserted into the receiving hole 21, while the toe remains pressed against the upper bladder body 17. This satisfies the pressing requirements of the shoes 7 (such as high-top shoes, boots, etc.) with greater height, while keeping the depth of the shoe placement area 20 and the mold cavity 4 unchanged, without increasing the air / oil consumption.

[0084] Furthermore, such as Figure 5 As shown, a pressure post 22 is provided in the receiving hole 21. The pressure post 22 is fixedly connected to the upper mold body 15, and the distance between the pressure post 22 and the opening of the receiving hole 21 can be adjusted relative to the upper mold body 15. This design allows shoes 7 of different heights to be pressed and fixed in the shoe placement area 20 for the pressing operation. During the pressing process, the shoes 7 are clamped and fixed without shaking, ensuring a high-quality pressing operation.

[0085] As one embodiment, the pressure column 22 can be slid along the depth direction of the receiving hole 21 to adjust the distance between its lower end and the opening of the receiving hole 21. The pressure column 22 is threadedly or plugged into the upper mold body 15 for fixed connection. The distance between its lower end and the opening of the receiving hole 21 can be adjusted by rotating the pressure column 22. Alternatively, the locking of the pressure column 22 can be loosened to allow the pressure column 22 to slide. After the pressure column 22 slides into place, it can be locked and fixed.

[0086] Furthermore, such as Figure 6 As shown, the upper end of the receiving hole 21 is provided with a hole cover 23 that is fixedly connected to the upper mold body 15. The pressure column 22 can be slidably fixedly connected to the hole cover 23 along the depth direction of the receiving hole 21. With this design, the hole cover 23 is used to expand the depth of the receiving hole 21 and the sliding amount of the pressure column 22, which meets the pressing operation requirements of shoes 7 with greater height, and further expands the range of applicable shoe types.

[0087] In this embodiment, the upper mold body 15 is provided with a negative pressure hole. One end of the negative pressure hole is located inside the upper circumference 16 or next to the upper bladder 17. When the other end of the negative pressure hole is connected to an air extraction device, it can extract the gas inside the upper circumference 16 or next to the upper bladder 17. With this design, when the pressure cap and the lower mold body 2 are pressed together, the air in the shoe placement area 20 can be extracted by means of the negative pressure hole, so that the shoe placement area 20 forms a negative pressure environment, which improves the efficiency of the bottom pressing operation, increases the squeezing force of the lower bladder 3 on the side of the shoe sole, and improves the bottom pressing quality.

[0088] In the embodiments disclosed herein, such as Figure 7 and Figure 8As shown, the lower mold includes a lower mold body 2 and a lower bladder body 3. The upper surface of the lower mold body 2 is recessed inward to form a mold cavity 4. An elastic lower bladder body 3 is provided in the mold cavity 4. The lower bladder body 3 seals the mold cavity 4. The lower bladder body 3 extends downward to form a shoe placement area 20 for placing shoes 7.

[0089] like Figure 7 and Figure 8 As shown, the lower mold body 2 is provided with several through holes 2 communicating with the mold cavity 4. The several through holes 2 are configured to fill the mold cavity 4 with filler material to compress the volume of the shoe placement area 20 and to allow the filler material in the mold cavity 4 to leave the mold cavity 4. The lower bladder 3 is made of elastic material. When filler material is filled into the mold cavity 4, the filler material compresses the lower bladder 3, causing the volume of the shoe placement area 20 to shrink until the inner wall of the lower bladder 3 is tightly attached to the side of the sole of the shoe 7, completing the sole pressing operation. After the sole pressing is completed, the filler material leaves the mold cavity 4, and the compressed lower bladder 3 automatically returns to its original shape. Then the shoe with the sole pressed can be removed.

[0090] During the specific pressing process, the lifting device 14 is required to drive the pressure cap to descend and engage with the lower mold to complete the pressing and fixing of the shoe 7. Then, filler material is injected into the mold cavity 4 to perform the pressing operation of the shoe 7. The filler material is preferably gas or liquid.

[0091] In this embodiment of the disclosure, when the filler is gas, the second through hole includes an air inlet and an air outlet 8. The air inlet includes an air inlet 9 and an air inlet 10. The air pressures of the air inlet 9 and the air inlet 10 that fill the mold cavity 4 are different.

[0092] In this embodiment of the disclosure, the lower mold further includes a throttle module 28.

[0093] Specifically, such as Figure 12 As shown, the gas-saving module 28 includes: a first gas storage device 281, a second gas storage device 286, and a gas pressure detection device 293. The inlet of the first gas storage device 281 is connected to a booster device 282, and the inlet of the booster device 282 is connected to a first gas supply pipe 283. Gas supplied from an external gas source enters the booster device 282 through the first gas supply pipe 283. The booster device 282 pressurizes the gas to form high-pressure gas, which is stored in the first gas storage device 281. In this way, the gas pressure requirements of the bottomless molding equipment are met, and the gas pressure supplied to the bottomless molding equipment is stable and reliable, thereby ensuring the normal operation of the bottomless molding equipment. Even if the external gas source is suddenly interrupted, the high-pressure gas stored in the first gas storage device 281 can still supply the bottomless molding equipment for a relatively long time, enough to wait for the external gas source to be repaired and restored, without delaying production.

[0094] like Figure 12As shown, the outlet of the gas storage device 281 is connected to the inlet pipe 284. The inlet pipe 284 is equipped with a control valve 289. The outlet of the inlet pipe 284 is connected to the inlet hole 9 for filling the mold cavity 4 with high-pressure gas. The control valve 289 is used to control the opening and closing of the inlet pipe 284.

[0095] like Figure 12 As shown, the outlet of the gas storage device 286 is connected to the inlet pipe 287 and the supply pipe 292. The inlet pipe 287 is equipped with a control valve 288. The outlet of the inlet pipe 287 is connected to the inlet hole 10 for filling the mold cavity 4 with low-pressure recovered gas. The control valve 288 is used to control the opening and closing of the inlet pipe 287.

[0096] like Figure 12 As shown, the second gas supply pipe 292 is connected to the air inlet of the booster device 282. The second gas supply pipe 292 is equipped with a fourth control valve 294. When the second gas storage device 286 stores a large amount of recovered gas and the gas pressure is high, in order to ensure the safety of the second gas storage device 286, the fourth control valve 294 can be opened to allow the gas in the second gas storage device 286 to enter the booster device 282. After the gas is further pressurized, it is stored in the first gas storage device 281. After the gas pressure in the second gas storage device 286 drops to the normal range, the fourth control valve 294 is closed, and the recovered gas can continue to be stored in the second gas storage device 286.

[0097] like Figure 12 As shown, the air inlet of the second gas storage device 286 is connected to an exhaust pipe 285. A control valve 290 is installed on the exhaust pipe 285. The air inlet of the exhaust pipe 285 is connected to an exhaust port 8, used to recover the high-pressure gas discharged from the mold cavity 4. When the sole of a shoe 7 is pressed, and it is necessary to discharge the high-pressure gas from the mold cavity 4, the control valve 290 is opened, allowing the high-pressure gas discharged from the mold cavity 4 to enter the second gas storage device 286 through the exhaust pipe 285.

[0098] Furthermore, such as Figure 12 As shown, the control valve 290 has an exhaust port connected to the outside, and the exhaust port is equipped with a silencer 291. This design allows the control valve 290 to cut off the gas supply to the gas storage device 286 when the gas pressure inside the storage device 286 is high, instead directly discharging the remaining gas recovered by the exhaust pipe 285 into the atmosphere to protect the safety of the gas storage device 286. The silencer 291 reduces exhaust noise.

[0099] In this embodiment, as Figure 12As shown, both the first gas storage device 281 and the second gas storage device 286 are equipped with a gas pressure detection device 293 to detect the gas pressure in the first gas storage device 281 and the second gas storage device 286 in real time, thereby providing a reference for subsequent actions to control the gas pressure stability and avoiding excessively high gas pressure in the first gas storage device 281 and the second gas storage device 286 from affecting gas safety.

[0100] As can be seen, the gas-saving module 28 in this embodiment is equipped with two gas storage devices. Gas storage device 1 281 is used to store a stable high-pressure gas source, and gas storage device 286 is used to store recovered gas for secondary use. Specifically, the gas supplied by the external gas source through gas supply pipe 1 283 is pressurized by the booster device 282 to form a high-pressure gas source, which is stored in gas storage device 1 281. The high-pressure gas is then supplied to the mold cavity 4 through air inlet pipe 1 284. At the same time, gas storage device 286 stores the gas recovered by exhaust pipe 285, and then supplies it back to the mold cavity 4 through air inlet pipe 287. In this way, the amount of external gas used can be reduced, thereby reducing the cost of pressing the sole of the shoe 7.

[0101] Furthermore, the two-stage inflation method adopted by the thrift module 28 in this embodiment to supply air to the mold cavity 4 also helps to improve the quality and efficiency of bottom pressing. For example, after the shoe 7 is placed in the shoe placement area 20 of the lower mold, during the process of controlling the descent of the upper mold and the clamping of the lower mold to press the shoe 7, the recovered air stored in the second air storage device 286 is injected into the mold cavity 4 through the second air inlet pipe 287 in advance. At this time, since the upper mold has not yet descended to the position and the shoe 7 is not clamped and fixed, the injected low-pressure gas will not cause the shoe 7 to deviate from the normal shape and affect the bottom pressing quality. After the upper mold descends to the position and clamps and fixes the shoe 7 with the lower mold, high-pressure gas is injected to make the mold cavity 4 quickly reach the air pressure required for bottom pressing and perform bottom pressing. In this way, the inflation step is started in advance, which can effectively save time, speed up the bottom pressing efficiency, and at the same time avoid the high-pressure airflow impacting the shoe 7 and causing the shoe 7 to deviate from the normal shape and affect the bottom pressing quality.

[0102] In other embodiments, the gas-saving module 28 can also supply gas to the elastic and hollow upper bladder 17 of the upper mold and recover the high-pressure gas in the upper bladder 17. This design enables energy-saving gas recovery and utilization in the bottom-forming equipment without a bottom mold, reducing the bottom-forming cost of the equipment.

[0103] Specifically, there are three pipe connectors 151. The three pipe connectors 151 are respectively connected to the first air inlet pipe 284, the second air inlet pipe 287, and the exhaust pipe 285, so that the air outlet of the first air inlet pipe 284 and the second air inlet pipe 287, as well as the air inlet of the exhaust pipe 285, are all connected to the upper bladder 17.

[0104] Furthermore, such as Figure 7As shown, a support plate 5 is provided in the mold cavity 4. The support plate 5 is located below the lower bladder 3. The support plate 5 is used to support the shoes 7 in the shoe placement area 20 to keep the shoes 7 stable and prevent them from shaking during the pressing process, thereby ensuring the quality of the pressing.

[0105] like Figure 7 As shown, the pallet 5 is connected to a lifting device 6, which drives the pallet 5 to rise and fall in the mold cavity 4, thereby improving the pressing efficiency and meeting the pressing requirements of various shoe types.

[0106] Specifically, after the shoe 7 is placed in the shoe placement area 20, the shoe 7 is lifted by the support plate 5. Then, the lifting device 6 controls the support plate 5 to drive the shoe 7 to descend smoothly to the bottoming position. After the bottoming is completed, the shoe 7 is lifted up to the shoe retrieval position. The shoe 7, which has been bottomed, is then taken away. This design eliminates the need to put the shoe 7 deep into the bottom of the shoe placement area 20, shortens the time for picking up and putting down the shoe 7, improves the efficiency of picking up and putting down the shoe 7, and meets the bottoming requirements of shoes with greater height.

[0107] In addition, by using the lifting device 26 to lift the support plate 5, and in conjunction with the pressure cap, the highest point of different shoe types can always be pressed against the pressure cap. In this way, shoe types of different heights can be fixed, and the shoes 7 will not tilt when the mold cavity 4 is filled with air / oil and pressurized, which will affect the quality of the sole pressing of the shoes 7. This further expands the universality of the sole pressing equipment without sole.

[0108] Furthermore, increasing the lifting force of the lifting device 26 to lift the support plate 5 can meet the pressing requirements of special shoe types such as rubber soles and safety shoes that require greater pressing force, thus making it suitable for pressing operations of various shoe types and with a wide range of applications.

[0109] Of course, in other embodiments, such as Figure 8 As shown, when the support plate 5 is fixedly installed in the mold cavity 4, an elastic pad 25 is provided on the upper surface of the support plate 5. The elastic pad 25 is used to support the shoes 7 in the shoe placement area 20 to descend smoothly. The elastic pad 25 is configured such that its thickness decreases after being pressed down by the shoes 7. This design ensures that the shoes 7 in the shoe placement area 20 descend smoothly by supporting the elastic pad 25, maintaining the stability of the shoes 7 and preventing them from shaking during the pressing process, thereby ensuring the quality of the pressing. Moreover, the elastic pad 25 occupies space in the mold cavity 4, resulting in a reduction in the amount of filler material that can be filled into the mold cavity 4, thus reducing the pressing cost.

[0110] Specifically, when the tray 5 is fixedly installed in the mold cavity 4, the lifting device 14 drives the pressure cover to descend and engage with the lower mold body 2. During this process, the pressure cover descends and presses down on the shoes 7 in the shoe placement area 20, thereby driving the shoes 7 to descend smoothly to the bottoming position and squeezing the elastic pad 25. After the bottoming is completed, the pressure cover moves up, and the compressed elastic pad 25 drives the shoes 7 to rise smoothly to the shoe removal position. The shoes 7 that have finished bottoming are then removed. With this design, it is not necessary to put the shoes 7 deep into the bottom of the shoe placement area 20, which shortens the time for picking up and putting down the shoes 7 and improves the efficiency of picking up and putting down the shoes 7.

[0111] In addition, the elastic pad 25 supports the shoe 7, which helps to keep the shoe 7 stable and prevents it from shaking during the pressing process, thus ensuring the pressing quality. At the same time, by using the elastic pad 25 to support the shoe 7, and in conjunction with the pressure cap, the highest point of the shoe with different heights can always be pressed against the pressure cap. In this way, different shoe types can be fixed in place, preventing the shoe 7 from tilting when the mold cavity 4 is filled with air / oil and pressurized, which would affect the pressing quality of the shoe 7. This further expands the universality of the sole-free mold pressing equipment.

[0112] As an example, the support plate 5 with an elastic pad 25 on its upper surface can also be designed to move up and down within the mold cavity 4. For instance, the support plate 5 can be moved up and down within the mold cavity 4 by a lifting device 2 6. This design has two advantages over the fixed support plate 5 design: First, when the shoe height is large, the lifting device 2 6 can be used to lower the support plate 5 within the mold cavity 4 to complete the sole pressing operation of the shoe 7, meeting the sole pressing requirements of shoes with greater height. Second, by using the lifting device 2 6 to lift the support plate 5, it is ensured that the highest point of different shoe shapes can always be pressed against the pressure cap, fixing shoe shapes of different heights. This prevents the shoe 7 from tilting when the mold cavity 4 is pressurized with air / oil, affecting the sole pressing quality of the shoe 7 and improving the reliability of the sole-free mold pressing equipment.

[0113] Specifically, the material of the elastic pad 25 can be sponge.

[0114] like Figure 7 , Figure 8 As shown, the shoe placement area 20 has a lower edge 18 on its side wall near the lower bladder 3. The lower edge 18 is fixedly connected to the lower mold body 2. During the pressing process of the shoe 7, the lower edge 18 is used to protect the lower bladder 3, preventing the lower bladder 3 from directly contacting the shoe last and puncturing the lower bladder 3, thus protecting the safety of the lower bladder 3.

[0115] Furthermore, the surface of the support plate 5 is provided with through holes running vertically. This design allows the gas / liquid flow to be evenly distributed and flow upwards, fully compressing the bottom of the lower bladder 3. This avoids uneven distribution of gas / liquid flow, which could cause localized and severe deformation of the bottom of the lower bladder 3, causing the shoe 7 to deviate from the correct posture and affecting the quality of the bottom pressing.

[0116] In this embodiment, as Figure 1 , Figure 2 , Figure 11As shown, the sole-forming equipment also includes a feeding mechanism 11 and a discharging mechanism 13. The feeding mechanism 11 is configured to convey shoes 7 to the transfer mechanism; the discharging mechanism 13 is configured to remove shoes 7 from the transfer mechanism. This achieves a streamlined, unmanned, automated sole-forming operation for shoes 7, resulting in high sole-forming efficiency.

[0117] During operation, one of the clamps 27 of the transfer mechanism picks up the shoes 7 delivered by the feeding mechanism 11 and places the shoes 7 into the shoe placement area 20. At the same time, the other clamp 27 of the transfer mechanism picks up the shoes 7 that have been pressed in the shoe placement area 20 and places the shoes 7 into the discharge mechanism 13. Then, the second transverse mechanism 30 moves the upper mold to directly above the lower mold (or the first transverse mechanism 24 moves the lower mold to directly below the upper mold). Then, the pressure cap descends and engages with the lower mold to perform the bottom pressing operation. After the bottom pressing is completed, the pressure cap moves up to reset. The second transverse mechanism 30 moves the transfer mechanism to directly above the lower mold (or the first transverse mechanism 24 moves the lower mold to directly below the transfer mechanism). Then, one of the clamps 27 of the transfer mechanism picks up the shoe 7 sent by the feeding mechanism 11 and places the shoe 7 in the shoe placement area 20. At the same time, the other clamp 27 of the transfer mechanism picks up the shoe 7 that has been pressed in the shoe placement area 20 and places the shoe 7 in the discharge mechanism 13. (When one clamp 27 picks up the shoe 7 sent by the feeding mechanism 11, the other clamp 27 picks up the shoe 7 that has been pressed in the shoe placement area 20. When one clamp 27 places the shoe 7 in the shoe placement area 20, the other clamp 27 places the shoe 7 in the discharge mechanism 13.)

[0118] As can be seen, the sole-pressing equipment of this embodiment can replace manual labor in loading and unloading shoes 7 by means of a transverse mechanism and a transfer mechanism, thereby improving the pressing speed and efficiency. Moreover, when combined with the feeding mechanism 11 and the discharging mechanism 13, it also realizes unmanned automated assembly line pressing operation of shoes 7.

[0119] In this embodiment, when the upper and lower molds are designed as multi-station molds, for example... Figure 1 and Figure 11 The dual-station design shown can also include a conveying mechanism 32 at the end of the feeding mechanism 11. The conveying mechanism 32 can transport the shoes 7 fed by the feeding mechanism 11 to the loading station corresponding to each lower mold, so that the transfer mechanism above each lower mold can pick up the shoes 7.

Claims

1. A bottom-pressing device without a bottom mold, comprising an upper mold and a lower mold located below the upper mold, characterized in that, A transfer mechanism is provided next to the upper mold. The transfer mechanism and the upper mold are connected by a transverse mechanism. The transverse mechanism drives the transfer mechanism and the upper mold to move alternately to the top of the lower mold. Alternatively, the lower mold is connected to a transverse mechanism, which drives the lower mold to move alternately between the bottom of the transfer mechanism and the bottom of the upper mold. The transfer mechanism is configured to pick up the shoes when it is directly above the lower mold, transfer the shoes to the lower mold, and remove the shoes that have been pressed in the lower mold; The upper mold includes a pressure cap, which includes an upper mold body, an upper rim and an upper bladder located on the lower surface of the upper mold body, and the upper bladder is located inside the upper rim.

2. The bottomless molding equipment according to claim 1, characterized in that: The transfer mechanism includes a swing arm mechanism and a clamp. The swing arm mechanism includes a drive component and a rocker arm that is pulsatorically connected to the drive component. The rocker arm is hinged to the clamp. The drive component drives the rocker arm to swing, causing the clamp to move around the swing center of the rocker arm to transfer the shoe. During the movement, the upper and lower ends of the clamp remain relatively stationary.

3. The bottomless molding equipment according to claim 2, characterized in that: The swing arm mechanism also includes: The mounting component has a horizontally sliding frame mounted on it, and a vertically sliding frame mounted on the horizontally sliding frame. The clamp is connected to the vertically sliding frame.

4. The bottomless molding equipment according to claim 2, characterized in that: The rocker arm and the clamp are hinged together by a wheel axle. The rocker arm mechanism also includes a pair of transmission wheels with equal diameters and a flexible member tightly fitted on the pair of transmission wheels. One of the transmission wheels is coaxial with the rocker arm swing center and is configured to remain fixed during the rocker arm swing. The other transmission wheel is coaxially and fixedly connected to the wheel axle. The clamp is fixedly connected to the wheel axle.

5. The bottomless molding equipment according to claim 2, characterized in that: The drive component is fixedly connected to a connecting component. Multiple spaced and parallel wheel axles are rotatably mounted on the connecting component. There are multiple rocker arms, which are spaced and parallel and are all hinged to the clamp. Each rocker arm is fixedly connected to one wheel axle, and the multiple wheel axles are connected to the drive component for transmission.

6. The bottomless molding equipment according to any one of claims 2-5, characterized in that: The clamps are a pair, spaced apart, and the pair of clamps are hinged to the same connecting rod. One clamp moves around the swing center of the rocker arm, which drives the other clamp to move synchronously through the connecting rod.

7. The bottomless molding equipment according to claim 2, characterized in that: The fixture includes a frame and a push-pull component mounted on the frame. A movable block is installed at the telescopic end of the push-pull component. Each end of the movable block is hinged with a clamping arm 1. A clamping arm 2 is hinged to the clamping arm 1. The middle part of the clamping arm 2 bends towards the frame and is hinged to the frame. A clamping arm 3 is hinged to the end of the clamping arm 2 away from the clamping arm 1. The end of the clamping arm 3 near the clamping arm 2 is also hinged to the frame via a connecting rod. The push-pull component drives the movable block to move, causing the pair of clamping arms 3 to move closer or further apart through the clamping arms 1, clamping arms 2, and connecting rod.

8. The bottomless molding equipment according to claim 1, characterized in that: The upper bladder is elastic and hollow inside. The upper mold body is provided with a pipe joint that communicates with the interior of the upper bladder. The pipe joint is configured to fill the interior of the upper bladder with filler to change the volume of the upper bladder.

9. The bottomless molding equipment according to claim 1, characterized in that: The lower surface of the upper mold body is recessed inward to form a receiving hole, which is located next to the upper bladder body.

10. The bottomless molding equipment according to claim 9, characterized in that: A pressure column is provided in the receiving hole. The pressure column is fixedly connected to the upper mold body, and the pressure column can be adjusted to slide relative to the upper mold body at a distance from the opening of the receiving hole.

11. The bottomless molding equipment according to claim 1, characterized in that: The lower mold includes a lower mold body, a lower bladder, and a support plate. The upper surface of the lower mold body is recessed inward to form a mold cavity. An elastic lower bladder is provided in the mold cavity. The lower bladder seals the mold cavity and extends downward to form a shoe placement area for placing shoes. The lower mold body is provided with several through holes II communicating with the mold cavity. The several through holes II are configured to fill the mold cavity with filler to compress the volume of the shoe placement area and to allow the filler in the mold cavity to leave the mold cavity. A support plate is fixedly or vertically installed in the mold cavity. The support plate is located below the lower bladder and is used to support the shoes in the shoe placement area. An elastic pad is provided on the upper surface of the support plate. The elastic pad is configured to reduce its thickness when pressed down by the shoes.

12. The bottomless molding equipment according to claim 11, characterized in that: The second through hole includes an air inlet and an air outlet. The air inlet includes an air inlet one and an air inlet two. The air pressures of the air inlet one and the air inlet two are different when they are filled into the mold cavity. The lower mold further includes a throttle module, which includes: A gas storage device 1, wherein the inlet end of the gas storage device 1 is connected to a pressurizing device, the inlet end of the pressurizing device is connected to a gas supply pipe 1, the outlet end of the gas storage device 1 is connected to an inlet pipe 1, a control valve 1 is provided on the inlet pipe 1, and the outlet end of the inlet pipe 1 is connected to an inlet port 1. Gas storage device 2, the outlet end of the gas storage device 2 is connected to the inlet pipe 2 and the supply pipe 2, the inlet pipe 2 is equipped with the control valve 2, the outlet end of the inlet pipe 2 is connected to the inlet hole 2, the supply pipe 2 is connected to the inlet end of the booster device, the supply pipe 2 is equipped with the control valve 4, the inlet end of the gas storage device 2 is connected to the exhaust pipe, the exhaust pipe is equipped with the control valve 3, the inlet end of the exhaust pipe is connected to the exhaust hole; The air pressure detection device is installed on the first air storage device and the second air storage device.

13. The bottomless molding equipment according to claim 1, characterized in that, Also includes: The feeding mechanism is designed to convey shoes to the transfer mechanism; The discharge mechanism is designed to remove shoes from the transfer mechanism.

14. The bottomless molding equipment according to claim 1, characterized in that: The transfer mechanism is a two-axis robotic arm.

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