Foaming and shaping device for high-end midsole production

Abstract

The application relates to the foaming and shaping technical field and discloses a foaming and shaping device for high-end insole production, which comprises a base, a pressing plate slidingly arranged above the base, a fixed die fixed on the base, a plurality of positioning columns slidingly connected in the fixed die, a demolding assembly connected to the bottoms of the positioning columns, a movable die fixed to the bottom of the pressing plate, a plurality of through holes arranged on the movable die, a plurality of fixed sleeves fixedly installed in the through holes, a plurality of rotating cylinders arranged in the fixed sleeves, L-shaped clamping blocks fixed to the bottoms of the rotating cylinders, and clamping grooves slidingly matched with the L-shaped clamping blocks and arranged at the tops of the positioning columns. A guide groove structure is arranged on the inner side of the rotating cylinder, and a sliding column slidingly penetrates through the pressing plate. The foaming and shaping device can synchronously realize the connection of the rotating cylinder, the positioning column and the demolding assembly during the die closing action, so that the demolding action can be realized at the same time when the die is opened, and the efficiency is relatively high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of foaming and shaping, in particular to a foaming and shaping device for high-end midsole production. BACKGROUND

[0002] In the production process of high-end midsoles, the embryo mold foaming process is to shoot the material into a small midsole embryo mold, then put the midsole embryo mold into a midsole mold and send it into an autoclave, supercritical fluid penetrates into the embryo mold under high pressure and diffuses uniformly, and the foaming reaction is triggered by pressure relief or temperature rise, so that the midsole is foamed and shaped by the restriction of the mold.

[0003] Since the mold needs to be placed in a high-temperature and high-pressure environment in the autoclave, the existing foaming and shaping mold is usually locked by arranging multiple bolt pairs on both sides of the mold, and the dynamic mold and the fixed mold are locked by tightening the bolt pairs with a fixed torque electric wrench. When opening, the bolt pairs are loosened with a fixed torque electric wrench, so that the dynamic mold and the fixed mold are separated. However, when the bolt pairs are loosened with a fixed torque electric wrench, multiple bolt pairs need to be operated one by one manually, which increases the labor intensity and time and effort, resulting in low efficiency. SUMMARY

[0004] The purpose of the present application is to provide a foaming and shaping device for high-end midsole production to solve the problems mentioned above.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a foaming and shaping device for high-end midsole production, comprising a base and a pressing plate slidingly arranged above the base, a fixed mold is fixed on the base, a plurality of positioning columns are vertically and slidingly connected in the fixed mold, a demolding assembly is connected to the bottom of the plurality of positioning columns, a dynamic mold is fixed to the bottom of the pressing plate, a plurality of through holes corresponding to the plurality of positioning columns are arranged on the dynamic mold, a fixed sleeve is fixedly installed in each of the plurality of through holes, a rotating cylinder is arranged in each of the plurality of fixed sleeves, an L-shaped clamping block is fixed to the bottom of each of the plurality of rotating cylinders, and a clamping groove slidingly matched with the L-shaped clamping block is arranged on the top of each of the plurality of positioning columns.

[0006] The inner side of the rotating cylinder is provided with a guide groove structure, a sliding column is slidingly penetrated through the pressing plate, and a roller rotatingly connected with the sliding column is rolling matched in the guide groove structure.

[0007] The guide groove structure comprises a first vertical guide groove, a first spiral guide groove, a second vertical guide groove and a second spiral guide groove connected in sequence, the end of the second spiral guide groove is communicated with the middle part of the first vertical guide groove, and the end of the first spiral guide groove extends a compensation guide groove.

[0008] As a preferred scheme of the foaming shaping device for high-end midsole production, the bottom of the clamping groove is provided with a hole for the L-shaped clamping block to pass through.

[0009] As a preferred scheme of the foaming shaping device for high-end midsole production, the demolding assembly comprises a moving frame fixedly connected between the bottoms of the plurality of positioning columns and two ejection seats fixed to the top of the moving frame.

[0010] As a preferred scheme of the foaming shaping device for high-end midsole production, the top of the fixed die is provided with two shaping through grooves, and the two ejection seats are respectively slidably connected in the two shaping through grooves.

[0011] As a preferred scheme of the foaming shaping device for high-end midsole production, the fixed sleeve is slidably connected with a sliding ring, a spring is fixedly connected between the top of the sliding ring and the fixed sleeve, and the rotating drum is rotatably connected to the bottom of the sliding ring.

[0012] As a preferred scheme of the foaming shaping device for high-end midsole production, a plurality of fixed rods are fixed to the base, a top frame is fixedly installed at the top of the plurality of fixed rods, and the pressing plate is vertically slidably arranged below the top frame.

[0013] As a preferred scheme of the foaming shaping device for high-end midsole production, two sliding plates are symmetrically slidably connected in the top frame, two groups of T-shaped guide rails are symmetrically fixed to the top of the pressing plate, a sliding seat is slidably sleeved on the outer side of each group of T-shaped guide rails, and the bottom of each sliding plate is fixedly connected with the two groups of sliding seats.

[0014] As a preferred scheme of the foaming shaping device for high-end midsole production, a double-headed screw is rotatably connected in the top frame, the two sliding plates are respectively screw-connected to the two ends of the double-headed screw, and a hexagonal recess is arranged at the end of the double-headed screw.

[0015] As a preferred scheme of the foaming shaping device for high-end midsole production, two guide rods are fixedly installed in the top frame, and the two guide rods are slidably penetrated through the two sliding plates.

[0016] As a preferred scheme of the foaming shaping device for high-end midsole production, the plurality of sliding columns are divided into two groups, the two groups of sliding columns are symmetrically arranged, a connecting rod is rotatably connected to the top of each group of sliding columns, and the ends of the two groups of connecting rods are respectively rotatably connected to the bottoms of the two sliding plates.

[0017] Compared with the prior art, the foaming shaping device for high-end midsole production has the following advantages:

[0018] 1. In the mold closing process of this invention, the sliding column extends vertically into the rotating cylinder. When the roller moves to the bottom of the first vertical guide groove, the L-shaped locking block at the bottom of the rotating cylinder extends into the locking groove at the top of the positioning column. Then, as the mold closing action continues, the roller pushes the first spiral guide groove to rotate the rotating cylinder, thereby causing the L-shaped locking block to rotate and extend into the locking groove. This makes the rotating cylinder and the positioning column relatively fixed in the vertical direction. When the mold is locked, the roller moves to the bottom of the second vertical guide groove. Then, when the mold is opened, the roller rises along the second vertical guide groove, causing the rotating cylinder to drive the positioning column and the demolding assembly to rise through the L-shaped locking block and the locking groove. This achieves the demolding action at the same time as the mold opening action, which is highly efficient.

[0019] 2. In this invention, when the roller pushes the first spiral guide groove to make the rotating cylinder rotate, the bottom of the rotating cylinder will not move downwards as it contacts the top of the positioning post. Meanwhile, the pressure plate will push the moving mold and the fixed sleeve to continue moving downwards, causing the slip ring at the top of the rotating cylinder and the fixed sleeve to compress the spring. Thus, when the roller slides along the second vertical guide groove, before the roller moves to the same height as the bottom of the first vertical guide groove, the compressed spring will prevent the rotating cylinder from moving upwards. At this time, the moving mold rises relative to the fixed mold, causing the moving mold to separate from the top of the foamed and shaped insole. Then, as the mold opening action continues, the moving mold drives the fixed sleeve to continue rising, which in turn causes the fixed sleeve to drive the rotating cylinder to rise. This, in turn, drives the L-shaped locking block and the locking groove to drive the positioning post and the ejector seat of the demolding assembly to push the insole upwards. This achieves the separation of the moving mold and the fixed mold, and then the push plate pushes the product out of the mold cavity.

[0020] 3. In this invention, when the roller moves along the second spiral guide groove, the rotating drum rotates in the opposite direction, causing the L-shaped locking block to rotate in the opposite direction within the locking groove. After the roller moves into the first vertical guide groove, the L-shaped locking block moves to the insertion hole position, thereby causing the positioning post and the demolding assembly to fall and reset due to their own gravity.

[0021] 4. When the mold is closed, the double-headed screw is rotated to make the two slide plates slide symmetrically to both sides. This allows the slide blocks on the two slide plates to slide and engage with the corresponding T-shaped guide rails above the pressure plate, causing the pressure plate to move downward. The symmetrically arranged slide plates cause both sides of the pressure plate to be pushed downward simultaneously, which pushes the moving mold and the fixed mold downward to lock them together. The operation is simple and efficient. The pressure plate is subjected to consistent and uniform force on both sides, which allows the pressure plate to lock the moving mold and the fixed mold downward with uniform force. This provides uniform locking force when the mold is closed, ensuring the foaming quality of the mold blank.

[0022] 5、The mold closing of the present application adopts the structure of pressing, in the process of mold closing, when the contact surface of the movable mold and the fixed mold is worn out due to multiple extrusions, the descending distance of the movable mold is increased, and the movable mold and the fixed mold cannot be closely fitted when the roller moves to the end of the first spiral guide groove, so that the flash is generated at the edge of the foaming middle sole, the compensation guide groove is arranged at the end of the first spiral guide groove to avoid the end of the first spiral guide groove hindering the roller from continuing to descend, so that the pressure compensation of the contact surface between the movable mold and the fixed mold is realized, and the movable mold and the fixed mold can be closely fitted after wear, and the flash is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the schematic diagram of the whole structure of the present application.

[0024] Figure 2 It is the schematic diagram of the sectional structure of the present application when the mold is closed.

[0025] Figure 3 It is the schematic diagram of the sectional structure of the present application when the mold is opened.

[0026] Figure 4 It is the schematic diagram of the sectional structure of the present application when the mold is closed. Figure 3

[0027] Figure 5 It is the schematic diagram of the sectional structure of the present application when the mold is closed.

[0028] Figure 6 It is the schematic diagram of the sectional structure of the present application when the mold is closed.

[0029] Figure 7 It is the schematic diagram of the sectional structure of the present application when the mold is closed.

[0030] Figure 8 It is the schematic diagram of the sectional structure of the present application when the mold is closed.

[0031] Figure 9 It is the schematic diagram of the sectional structure of the present application when the mold is closed. Figure 8

[0032] Figure 10 It is the schematic diagram of the sectional structure of the present application when the mold is closed.

[0033] ​​In the figure: 1, base; 11, fixed rod; 12, top frame; 13, guide rod; 2, fixed mold; 21, positioning column; 211, clamping groove; 212, insertion hole; 22, moving frame; 23, ejection seat; 3, movable mold; 31, fixed sleeve; 32, rotating drum; 321, first vertical guide groove; 322, first spiral guide groove; 323, second vertical guide groove; 324, second spiral guide groove; 325, compensation guide groove; 326, L-shaped clamping block; 33, spring; 34, sliding ring; 4, pressing plate; 41, T-shaped guide rail; 42, sliding plate; 43, sliding seat; 44, double-headed screw rod; 45, connecting rod; 46, sliding column; 461, roller. DETAILED DESCRIPTION

[0034] The features and exemplary embodiments of the various aspects of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one of ordinary skill in the art that the present application can be practiced without some or all of these specific details. The description of the embodiments is merely illustrative of the present application and is not intended to limit the present application to any particular configuration or algorithm unless expressly so limited. In the following description, well-known structures and techniques have not been shown in detail in order to avoid obscuring the present application.

[0035] Embodiment 1, with reference to Figures 1-10 As a first embodiment of the present application, a foaming and shaping device for high-end midsole production is provided, which comprises a base 1 and a pressing plate 4 slidingly arranged above the base 1. The base 1 is fixed with a fixed mold 2, and a plurality of positioning columns 21 are vertically and slidingly connected in the fixed mold 2. The bottom of the plurality of positioning columns 21 is connected with a demolding assembly. The bottom of the pressing plate 4 is fixed with a movable mold 3, and the movable mold 3 is provided with a plurality of through holes corresponding to the plurality of positioning columns 21. A fixed sleeve 31 is fixedly installed in each of the plurality of through holes, and a rotating drum 32 is arranged in each of the plurality of fixed sleeves 31. The bottom of each of the plurality of rotating drums 32 is fixed with an L-shaped clamping block 326, and the top of each of the plurality of positioning columns 21 is provided with a clamping groove 211 slidingly matched with the L-shaped clamping block 326.

[0036] The inner side of the rotating drum 32 is provided with a guide groove structure. The pressing plate 4 is slidingly penetrated with a sliding column 46, and the sliding column 46 is rotatably connected with a roller 461 slidingly matched in the guide groove structure.

[0037] The guide groove structure comprises a first vertical guide groove 321, a first spiral guide groove 322, a second vertical guide groove 323, and a second spiral guide groove 324 sequentially and communicatively connected in head-tail direction. The end of the second spiral guide groove 324 is communicatively connected with the middle of the first vertical guide groove 321, and the end of the first spiral guide groove 322 is extended with a compensation guide groove 325.

[0038] The bottom of the card slot 211 and the top of the positioning column 21 are provided with a hole 212 for the L-shaped card block 211 to pass through.

[0039] The demolding assembly comprises a moving frame 22 fixedly connected between the bottoms of the plurality of positioning columns 21 and two ejection seats 23 fixed to the top of the moving frame 22.

[0040] The mold 2 is provided with two shaping through slots, and the two ejection seats 23 are respectively slidingly connected in the two shaping through slots.

[0041] The fixed sleeve 31 is slidingly connected with a sliding ring 34, the top of the sliding ring 34 is fixedly connected with a spring 33 between the fixed sleeve 31, and the rotating drum 32 is rotationally connected to the bottom of the sliding ring 34.

[0042] The base 1 is fixed with a plurality of fixed rods 11, the top of the plurality of fixed rods 11 is fixedly installed with a top frame 12, and the pressing plate 4 is vertically slidingly arranged below the top frame 12.

[0043] The top frame 12 is symmetrically slidingly connected with two sliding plates 42, the top of the pressing plate 4 is symmetrically fixed with two groups of T-shaped guide rails 41 arranged obliquely, the outer sides of the two groups of T-shaped guide rails 41 are slidingly sleeved with sliding seats 43, and the two groups of sliding seats 43 are respectively fixedly connected with the bottoms of the two sliding plates 42.

[0044] The top frame 12 is rotationally connected with a double-headed screw rod 44, the two sliding plates 42 are respectively screw-connected to the two ends of the double-headed screw rod 44, and the end of the double-headed screw rod 44 is provided with a hexagonal recess.

[0045] The top frame 12 is fixedly installed with two guide rods 13, and the two guide rods 13 are slidingly penetrated through the two sliding plates 42.

[0046] The plurality of sliding columns 46 are divided into two groups, and the two groups of sliding columns 46 are symmetrically arranged, the top of the two groups of sliding columns 46 are rotationally connected with connecting rods 45, and the ends of the two groups of connecting rods 45 are respectively rotationally connected with the bottoms of the two sliding plates 42.

[0047] During use, the blank is placed in the shaping channel of the fixed mold 2, and the blank is above the ejection seat 23, then the torque motor wrench is inserted into the hex socket of the end of the double-headed screw rod 44, the hex socket is rotated to drive the double-headed screw rod 44 to rotate, so that the two sliding plates 42 connected by screwing are respectively slid along the two guide rods 13 to the two sides, the two sliding plates 42 are slid along the two groups of T-shaped guide rails 41 through the sliding cooperation of the two groups of sliding seats 43 and the two groups of T-shaped guide rails 41, so that the two groups of sliding seats 43 are respectively moved away from the pressing plate 4, so that the sliding plate 42 and the pressing plate 4 are relatively far away from each other, the relative position of the sliding plate 42 and the top frame 12 is fixed in the vertical direction through the guide rod 13, so that the pressing plate 4 moves downward relative to the top frame 12, and the two sliding plates 42 move to the two sides to drive one end of the two groups of connecting rods 45 to move to the two sides, so that the other end of the two groups of connecting rods 45 pushes the two groups of sliding columns 46 to move downward, so that the bottom end of the sliding column 46 extends into the rotating drum 32 and moves downward along the axis of the rotating drum 32;

[0048] When the pressing plate 4 moves downward to push the movable mold 3 and the fixed sleeve 31 to move downward, the spring 33 in the fixed sleeve 31 pushes the sliding ring 34 and the rotating drum 32 to move downward, until the bottom of the rotating drum 32 and the top of the positioning column 21 are in contact, the L-shaped clamping block 326 at the bottom of the rotating drum 32 extends into the top insertion hole 212 of the positioning column 21, so that the L-shaped clamping block 326 at the bottom of the rotating drum 32 extends to one side of the top clamping groove 211 of the positioning column 21, and at this time the sliding column 46 drives the roller 461 to move downward along the first vertical guide groove 321 inside the rotating drum 32 to the bottom end of the first vertical guide groove 321, then the two sliding plates 42 continue to move to the two sides along the guide rod 13 with the continuous rotation of the double-headed screw rod 44, so that the pressing plate 4 and the sliding column 46 continue to move downward, after the bottom of the rotating drum 32 and the top of the positioning column 21 are in contact, the rotating drum 32 cannot continue to move downward, so that the sliding ring 34 at the top of the rotating drum 32 cannot continue to move downward, the pressing plate 4 moves downward to push the movable mold 3 and the fixed sleeve 31 to continue to move downward, so that the fixed sleeve 31 and the sliding ring 34 compress the plurality of springs 33, and the roller 461 on one side of the sliding column 46 moves into the first spiral guide groove 322, since the sliding column 46 drives the roller 461 to move vertically downward, the roller 461 drives the first spiral guide groove 322 to rotate the rotating drum 32, the rotating drum 32 drives the L-shaped clamping block 326 at the bottom of the rotating drum 32 to rotate and extend into the top clamping groove 211 of the positioning column 21, so that the rotating drum 32 and the positioning column 21 are relatively fixed in the vertical direction, when the pressing plate 4 pushes the movable mold 3 and the contact surface of the fixed mold 2 to be tightly attached and locked, the roller 461 moves to the end of the first spiral guide groove 322, that is, the bottom end of the second vertical guide groove 323;

[0049] Then after the foaming of the blank, the foamed midsole is limited and shaped by the shaping channel in the fixed die 2 and the forming space limited between the movable die 3 and the ejection seat 23, and waits for the device to cool and shape;

[0050] When the midsole needs to be taken out after the foaming and shaping of the midsole are completed, the double-headed screw rod 44 is reversely rotated by the fixed torque electric wrench, so that the two sliding plates 42 move to the middle along the two guide rods 13. The two sliding plates 42 slide along the two groups of T-shaped guide rails 41 through the sliding cooperation of the two groups of sliding seats 43 and the two groups of T-shaped guide rails 41, so that the two groups of sliding seats 43 move to the direction of approaching the pressing plate 4, thereby the sliding plate 42 and the pressing plate 4 relatively approach, and the pressing plate 4 moves upward relative to the top frame 12. At the same time, the two sliding plates 42 drive one end of the two groups of connecting rods 45 to move to the middle when moving to the middle, so that the other end of the two groups of connecting rods 45 pulls the two groups of sliding columns 46 to move upward, so that the bottom end of the sliding column 46 moves upward along the axis of the rotating cylinder 32;

[0051] When the pressing plate 4 moves upward, the movable mold 3 and the fixed sleeve 31 move upward, so that the contact surface of the movable mold 3 and the fixed mold 2 is separated, the roller 461 moves upward under the action of the slide post 46, and since the roller 461 is located at the bottom end of the second vertical guide groove 323 when the mold is locked, the roller 461 directly enters the second vertical guide groove 323 when it moves upward. Before the roller 461 moves to the same height as the bottom end of the first vertical guide groove 321, the plurality of springs 33 in the fixed sleeve 31 in the compressed state gradually extend to restore the length, until the rotating drum 32 abuts against the bottom of the fixed sleeve 31, and in this process, the rotating drum 32 does not move upward, so that the positioning column 21 is still relatively static with the fixed mold 2 in the vertical direction, so that the top of the foamed and shaped midsole in the shaping groove of the fixed mold 2 is separated from the bottom of the movable mold 3 when the movable mold 3 moves upward, and then the double-headed screw rod 44 is continuously rotated in the reverse direction to make the two sliding plates 42 continuously move to the middle part, so that the pressing plate 4 and the slide post 46 continue to move upward, respectively, the pressing plate 4 drives the movable mold 3 and the fixed sleeve 31 to move upward, so that the fixed sleeve 31 drives the rotating drum 32 to move upward, and since the L-shaped clamping block 326 at the bottom of the rotating drum 32 has been rotated to extend into the clamping groove 211 at the top of the positioning column 21 in the above process, the rotating drum 32 drives the positioning column 21 to move upward when the rotating drum 32 moves upward, so that the plurality of positioning columns 21 move upward in the fixed mold 2, so that the plurality of positioning columns 21 drive the moving frame 22 to move upward, and then the moving frame 22 drives the ejection seat 23 to move upward in the shaping groove of the fixed mold 2, so that the ejection seat 23 pushes the foamed and shaped midsole upward, and the ejection seat 23 gradually pushes the foamed and shaped midsole out of the shaping groove of the fixed mold 2 as the ejection seat 23 moves upward, so that the foamed and shaped midsole is moved out of the shaping groove of the fixed mold 2 through the above process, and there is a gap between the top of the foamed and shaped midsole and the bottom of the movable mold 3 after the foamed and shaped midsole is separated from the bottom of the movable mold 3, so that the foamed and shaped midsole can be directly pushed out of the movable mold 3 and the fixed mold 2, which greatly improves the efficiency of taking out the midsole;

[0052] Then continue to rotate the double-headed screw 44 in the reverse direction by the constant torque electric wrench, so that the two sliding plates 42 move to the middle along the two guide rods 13, and the pressure plate 4 and the sliding column 46 continue to move upwards respectively. The sliding column 46 drives the roller 461 to move from the top end of the second vertical guide groove 323 to the second spiral guide groove 324. Since the pressure plate 4 moves through the sliding seat 43 and the T-shaped guide rail 41, and the sliding column 46 moves upwards through the connecting rod 45, when the roller 461 on one side of the sliding column 46 moves in the second spiral guide groove 324, the ascending speed of the sliding column 46 is greater than that of the pressure plate 4, that is, the ascending speed of the sliding column 46 is greater than that of the rotating drum 32, so that the roller 461 moves upwards relative to the rotating drum 32, thereby pushing the second spiral guide groove 324 to make the rotating drum 32 rotate in the reverse direction around the vertical axis when moving along the second spiral guide groove 324. Since the plurality of positioning columns 21 cannot rotate due to the fixed connection of the moving frame 22, the rotating drum 32 and the positioning column 21 rotate in opposite directions, thereby making the L-shaped clamping block 326 at the bottom of the rotating drum 32 rotate in the reverse direction in the insertion hole 212 on one side of the clamping groove 211 at the top of the positioning column 21. When the roller 461 enters the first vertical guide groove 321 from the end of the second spiral guide groove 324, the L-shaped clamping block 326 at the bottom of the rotating drum 32 rotates to the insertion hole 212 on one side of the clamping groove 211 at the top of the positioning column 21. At this time, due to the self-gravity of the positioning column 21, the moving frame 22 and the ejection seat 23 of the demolding assembly, the positioning column 21 and the moving frame 22 and the ejection seat 23 of the demolding assembly move downwards, and the L-shaped clamping block 326 passes through the insertion hole 212, so that the L-shaped clamping block 326 does not block the downward movement of the positioning column 21. In this way, when the moving frame 22 moves to the bottom of the fixed mold 2, the ejection seat 23 slides into the shaping through slot of the fixed mold 2 again, so as to reset the ejection seat 23.

[0053] Finally, with the constant torque electric wrench continuing to rotate the double-headed screw 44 in the reverse direction, the pressure plate 4 drives the movable mold 3 to move away from the fixed mold 2 to achieve complete mold opening. At this time, there is a large distance between the movable mold 3 and the fixed mold 2, which facilitates the operation of applying release agent and placing the embryo mold, so that the foaming and shaping operation of the next midsole can be performed.

[0054] In summary, the locking of the movable mold 3 and the fixed mold 2 only needs to rotate a double-headed screw 44 by a constant torque electric wrench, and only needs to rotate a double-headed screw 44 in the reverse direction by a constant torque electric wrench to separate the movable mold 3 and the fixed mold 2. The operation is simple and efficient.

[0055] In addition, the movable mold 3 and the fixed mold 2 are locked in a compact structure, and during the mold closing process, the contact surface of the movable mold 3 and the fixed mold 2 is worn and consumed due to multiple extrusion locking, so that the movable mold 3 needs to move downward by an increased distance during mold locking, thereby increasing the distance by which the two sliding plates 42 move to both sides along the guide rod 13, and further increasing the distance by which the connecting rod 45 pushes the sliding column 46 to move downward, so that there is a gap between the contact surfaces of the movable mold 3 and the fixed mold 2 when the roller 461 moves to the end of the first spiral guide groove 322, and the two molds cannot be tightly fitted, thereby causing flash at the edge of the midsole during foaming and shaping. In order to avoid the generation of flash, the end of the first spiral guide groove 322 is preferably extended with a compensation guide groove 325, so that the roller 461 can continue to roll into the compensation guide groove 325 after moving to the end of the first spiral guide groove 322, and the roller 461 can continue to move downward relative to the rotating drum 32 after the contact surface of the movable mold 3 and the fixed mold 2 is extruded and worn, thereby avoiding the downward movement of the sliding column 46 being hindered by the roller 461, and further avoiding the movement of the connecting rod 45 and the sliding plate 42 being hindered, so that the distance by which the pressing plate 4 can move downward is increased, the contact surface of the movable mold 3 and the fixed mold 2 is compensated for pressure, and the movable mold 3 and the fixed mold 2 can still be tightly fitted after extrusion and wear, thereby avoiding the production of flash in the midsole.

[0056] Preferably, the compensation guide groove 325 is provided with a large-diameter round corner at the connection with the second vertical guide groove 323, and when the mold opening operation is performed after the roller 461 enters the compensation guide groove 325, the roller 461 moves upward when driven by the sliding column 46, and the roller 461 first moves upward along the compensation guide groove 325, and then rolls along the round corner at the connection between the compensation guide groove 325 and the second vertical guide groove 323 into the second vertical guide groove 323. After the roller 461 moves upward into the second vertical guide groove 323, the mold opening and demolding operation is consistent with the above process, so that the demolding assembly can still realize rapid demolding operation after the contact surface of the movable mold 3 and the fixed mold 2 is extruded and worn, and the efficiency is higher.

[0057] In addition, the two sliding plates 42 arranged symmetrically make the distance by which the two sliding plates 42 move to both sides consistent when the double-headed screw rod 44 is rotated to close the mold, so that the distance by which the pressing plate 4 moves in the vertical direction relative to the two sliding seats 43 is the same when the two groups of sliding seats 43 move along the two groups of T-shaped guide rails 41, so that the pressing plate 4 horizontally pushes the movable mold 3 downward, and after the contact surface of the movable mold 3 and the fixed mold 2 is contacted, the two symmetrically arranged sliding plates 42 make the pressing plate 4 on both sides simultaneously subjected to downward thrust, so that the pressing plate 4 simultaneously pushes the movable mold 3 and the fixed mold 2 downward on both sides to lock, which is simple in operation and high in efficiency, and the pressure on both sides of the pressing plate 4 is consistent and uniformly distributed, so that the pressing plate 4 can provide uniform locking force when pushing the movable mold 3 and the fixed mold 2 downward to lock, so that the pressure in the mold cavity is consistent when the mold is closed, thereby ensuring the foaming quality of the blank mold.

[0058] Preferably, the two groups of slide columns 46 are symmetrically arranged, so that the two groups of connecting rods 45 are also symmetrically arranged, so that when the two slide plates move to both sides, the downward movement distance of the two groups of slide columns 46 is consistent, ensuring the synchronous connection and loosening of the two sides of the rotating drum 32 and the positioning column 21, so that the demolding assembly is subjected to upward pulling force at the same time when moving upward, so that the ejection seat 23 horizontally ejects the midsole.

[0059] The different technical features appearing in different embodiments can be combined to achieve beneficial effects. Those skilled in the art should understand and implement other changed embodiments of the disclosed embodiments based on the drawings, the specification and the claims. In the claims, the term "comprising" does not exclude other devices or steps; the indefinite article "a" does not exclude a plurality; the terms "first", "second" are used to mark names rather than to indicate any particular order. Any reference signs in the claims should not be understood as limiting the scope of protection. The functions of multiple parts appearing in the claims can be implemented by a single hardware or software module. The fact that certain technical features appear in different dependent claims does not mean that these technical features cannot be combined to achieve beneficial effects.

Claims

1. A foaming and shaping device for high-end midsole production, characterized in that: The device includes a base (1) and a pressure plate (4) slidably disposed above the base (1). A fixed mold (2) is fixed on the base (1). Multiple positioning columns (21) are vertically slidably connected inside the fixed mold (2). Demolding components are connected to the bottom of the multiple positioning columns (21). A moving mold (3) is fixed to the bottom of the pressure plate (4). Multiple through holes corresponding to the multiple positioning columns (21) are provided on the moving mold (3). A fixing sleeve (31) is fixedly installed in each of the multiple through holes. A rotating cylinder (32) is provided inside each of the multiple fixing sleeves (31). An L-shaped locking block (326) is fixed to the bottom of each of the multiple rotating cylinders (32). A slot (211) that slides with the L-shaped locking block (326) is provided on the top of each of the multiple positioning columns (21). The inner side of the rotating drum (32) is provided with a guide groove structure, and a sliding column (46) slides through the pressure plate (4). One side of the sliding column (46) is rotatably connected to a roller (461) that is rolled and fitted in the guide groove structure. The guide groove structure includes a first vertical guide groove (321), a first spiral guide groove (322), a second vertical guide groove (323), and a second spiral guide groove (324) connected end to end. The end of the second spiral guide groove (324) is connected to the middle of the first vertical guide groove (321), and the end of the first spiral guide groove (322) extends into a compensation guide groove (325).

2. The foaming and shaping device for high-end midsole production according to claim 1, characterized in that: The bottom of the slot (211) and the top of the positioning post (21) are provided with an insertion hole (212) for the L-shaped card block (326) to pass through.

3. The foaming and shaping device for high-end midsole production according to claim 1, characterized in that: The demolding assembly includes a movable frame (22) fixedly connected between the bottoms of a plurality of positioning posts (21) and two ejector seats (23) fixedly attached to the top of the movable frame (22).

4. The foaming and shaping device for high-end midsole production according to claim 3, characterized in that: The fixed mold (2) is provided with two shaping through slots, and the two ejector seats (23) are slidably connected in the two shaping through slots respectively.

5. A foaming and shaping device for high-end midsole production according to claim 1, characterized in that: A slip ring (34) is slidably connected inside the fixed sleeve (31), and a spring (33) is fixedly connected between the top of the slip ring (34) and the fixed sleeve (31). The rotating cylinder (32) is rotatably connected to the bottom of the slip ring (34).

6. The foaming and shaping device for high-end midsole production according to claim 1, characterized in that: Multiple fixing rods (11) are fixed on the base (1), and a top frame (12) is fixedly installed on the top of the multiple fixing rods (11). The pressure plate (4) is vertically slidably disposed below the top frame (12).

7. A foaming and shaping device for high-end midsole production according to claim 6, characterized in that: The top frame (12) has two sliding plates (42) symmetrically connected inside. The top of the pressure plate (4) has two sets of inclined T-shaped guide rails (41) symmetrically fixed. The outer sides of the two sets of T-shaped guide rails (41) are slidably fitted with slide seats (43). The two sets of slide seats (43) are respectively fixedly connected to the bottom of the two sliding plates (42).

8. A foaming and shaping device for high-end midsole production according to claim 7, characterized in that: The top frame (12) is rotatably connected to a double-ended screw (44), and two sliding plates (42) are respectively screwed to the two ends of the double-ended screw (44). The ends of the double-ended screw (44) are provided with hexagonal grooves.

9. A foaming and shaping device for high-end midsole production according to claim 7, characterized in that: Two guide rods (13) are fixedly installed inside the top frame (12), and both guide rods (13) slide through the two slide plates (42).

10. A foaming and shaping device for high-end midsole production according to claim 7, characterized in that: The multiple sliding columns (46) are divided into two groups, and the two groups of sliding columns (46) are symmetrically arranged. The top of each group of sliding columns (46) is rotatably connected to a connecting rod (45), and the ends of the two groups of connecting rods (45) are rotatably connected to the bottom of two sliding plates (42).

Images