Foaming and shaping device for high-end insole production

Abstract

The invention relates to the technical field of foaming and shaping, and discloses a foaming and shaping device for high-end insole production, the foaming and shaping device comprises a base and a pressing plate slidably arranged above the base, a fixed mold is fixed on the base, a plurality of positioning columns are vertically slidably connected in the fixed mold, the bottoms of the positioning columns are connected with a demolding assembly, and the demolding assembly is fixedly connected with the base. A movable mold is fixed to the bottom of the pressing plate, a plurality of through holes are formed in the movable mold, fixing sleeves are fixedly installed in the through holes correspondingly, rotating cylinders are arranged in the fixing sleeves correspondingly, L-shaped clamping blocks are fixed to the bottoms of the rotating cylinders correspondingly, and clamping grooves in sliding fit with the L-shaped clamping blocks are formed in the tops of the positioning columns correspondingly; a guide groove structure is arranged on the inner side of the rotary drum, and a sliding column penetrates through the pressing plate in a sliding mode. According to the invention, the connection of the rotary drum, the positioning column and the demolding assembly can be synchronously realized in the mold closing action process, so that the demolding action can be conveniently realized while the mold is opened, and the efficiency is relatively high.

Description

Technical Field

[0001] The invention relates to the technical field of foaming and shaping, in particular to a foaming and shaping device for producing high-end midsoles. Background Art

[0002] In the production process of high-end midsoles, the embryo mold foaming process is to injection mold the material to obtain a small midsole embryo mold, and then place the midsole embryo mold into the midsole mold and send it into the autoclave. The supercritical fluid penetrates into the interior of the embryo mold under high pressure and diffuses evenly. The foaming reaction is triggered by decompression or temperature increase. The foaming expansion is restricted by the mold, thereby achieving the foaming and shaping of the midsole.

[0003] Because the mold needs to be placed in the high-temperature and high-pressure environment of an autoclave, existing foaming and shaping molds are often locked together using multiple bolt pairs arranged on both sides of the mold. A constant-torque electric wrench is used to tighten the bolt pairs to lock the movable mold and the fixed mold. When opening, a constant-torque electric wrench is used to loosen the bolt pairs to separate the movable mold and the fixed mold. However, when using a constant-torque electric wrench to tighten the bolt pairs, multiple bolt pairs need to be manually operated one by one, which makes the manual labor intensive, time-consuming and labor-intensive, resulting in low efficiency. Summary of the Invention

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

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a foaming and shaping device for high-end midsole production, comprising a base and a pressing plate slidably arranged above the base, a fixed mold being fixed on the base, a plurality of positioning posts being vertically slidably connected in the fixed mold, a plurality of the bottoms of the positioning posts being connected to a demolding assembly, a movable mold being fixed to the bottom of the pressing plate, a plurality of through holes being provided on the movable mold corresponding to the plurality of positioning posts one by one, a plurality of fixing sleeves being fixedly installed in the plurality of the through holes, a plurality of rotating cylinders being provided in the plurality of the fixing sleeves, an L-shaped block being fixed to the bottom of the plurality of the rotating cylinders, and a plurality of the positioning posts being provided with a slot slidably engaged with the L-shaped block on the top; A guide groove structure is provided on the inner side of the rotating drum, and a slide column is slidably passed through the pressure plate, and one side of the slide column is rotatably connected to a roller in the guide groove structure; The guide groove structure includes a first vertical guide groove, a first spiral guide groove, a second vertical guide groove and a second spiral guide groove which are connected in sequence end to end. The end of the second spiral guide groove is connected to the middle of the first vertical guide groove. A compensation guide groove extends from the end of the first spiral guide groove.

[0006] As a preferred solution of the foaming and shaping device for high-end midsole production described in the present invention, a hole for the L-shaped card block to pass through is provided between the bottom of the card slot and the top of the positioning column.

[0007] As a preferred solution of the foaming and shaping device for high-end midsole production described in the present invention, the demoulding assembly includes a movable frame fixedly connected between the bottoms of multiple positioning columns and two ejection seats fixed on the top of the movable frame.

[0008] As a preferred solution of the foaming and shaping device for high-end midsole production described in the present invention, two shaping grooves are provided on the fixed mold, and the two ejection seats are respectively slidably connected to the two shaping grooves.

[0009] As a preferred solution of the foaming and shaping device for high-end midsole production described in the present invention, a slip ring is slidably connected in the fixed sleeve, a spring is fixedly connected between the top of the slip ring and the fixed sleeve, and the rotating drum is rotatably connected to the bottom of the slip ring.

[0010] As a preferred solution of the foaming and shaping device for high-end midsole production described in the present invention, a plurality of fixing rods are fixed on the base, a top frame is fixedly installed on the top of the plurality of fixing rods, and the pressure plate is vertically slidably arranged below the top frame.

[0011] As a preferred solution of the foaming and molding device for high-end midsole production described in the present invention, two slides are symmetrically and slidably connected in the top frame, two groups of inclined T-shaped guide rails are symmetrically fixed on the top of the pressure plate, and slide seats are slidably sleeved on the outer sides of the two groups of T-shaped guide rails, and the two groups of slide seats are fixedly connected to the bottom of the two slides respectively.

[0012] As a preferred solution of the foaming and molding device for high-end midsole production described in the present invention, a double-headed screw is rotatably connected in the top frame, the two slides are respectively screwed together at the two ends of the double-headed screw, and the end of the double-headed screw is provided with a hexagonal groove.

[0013] As a preferred solution of the foaming and shaping device for high-end midsole production described in the present invention, two guide rods are fixedly installed in the top frame, and the two guide rods slide through the two slide plates.

[0014] As a preferred solution of the foaming and molding device for high-end midsole production described in the present invention, the plurality of sliding columns are divided into two groups, and the two groups of sliding columns are symmetrically arranged, the tops of the two groups of sliding columns are rotatably connected to connecting rods, and the ends of the two groups of connecting rods are rotatably connected to the bottoms of the two skateboards respectively.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, during the mold closing process, the sliding column extends vertically into the rotating drum. When the roller moves to the bottom of the first vertical guide groove, the L-shaped clamping block at the bottom of the rotating drum extends into the clamping groove at the top of the positioning column. Then, as the mold closing process continues, the roller pushes the first spiral guide groove to rotate the rotating drum, thereby causing the L-shaped clamping block to rotate and extend into the clamping groove, so that the rotating drum and the positioning column are relatively fixed in the vertical direction. When the mold is closed and locked, the roller moves to the bottom end of the second vertical guide groove. Then, during the mold opening process, the roller rises along the second vertical guide groove, so that the rotating drum drives the positioning column and the demolding assembly to rise through the L-shaped clamping block and the clamping groove, thereby realizing the demolding action at the same time as the mold opening action, which is highly efficient.

[0016] 2. According to the present invention, when the roller pushes the first spiral guide groove to rotate the drum, the bottom of the drum contacts the top of the positioning column and will not move downward, while the pressure plate pushes the movable mold and the fixed sleeve to continue to move downward, so that the slip ring and the fixed sleeve at the top of the drum compress the spring, so that 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 prevents the drum from moving upward. At this time, the movable mold rises relative to the fixed mold, so that the movable mold is separated from the top of the foamed and fixed midsole, and then as the mold opening action continues, the movable mold drives the fixed sleeve to continue to rise, so that the fixed sleeve drives the drum to rise, and then drives the L-shaped block and the slot to drive the positioning column and the ejector seat of the demoulding assembly to push the midsole upward, so that the movable mold is separated from the fixed mold and the product is pushed out of the mold cavity by the push plate.

[0017] 3. In the present invention, when the roller moves along the second spiral guide groove, the rotating drum rotates in the opposite direction, causing the L-shaped block to rotate in the opposite direction in the groove. After the roller moves into the first vertical guide groove, the L-shaped block moves to the socket position, so that the positioning column and the demoulding assembly fall due to their own gravity to achieve reset.

[0018] 4. When the present invention is closing the mold, the double-headed screw is rotated to make the two slides slide symmetrically to both sides, so that the slide seats on the two slides slide and cooperate with the corresponding T-shaped guide rails above the pressure plate, so that the pressure plate moves downward. The two symmetrically arranged slides make both sides of the pressure plate receive a downward thrust at the same time, so that the pressure plate pushes the movable mold and the fixed mold downward to lock them. The operation is simple and the efficiency is high. The force on both sides of the pressure plate is consistent and uniform, so that the pressure plate locks the movable mold and the fixed mold downward with a uniform force, providing a uniform locking force when closing the mold, thereby ensuring the foaming quality of the embryo mold.

[0019] 5. The mold closing of the present invention adopts a clamping structure. During the mold closing process, when the fixed mold and the movable mold are squeezed multiple times, the contact surface of the movable mold and the fixed mold is worn and lost, which increases the downward movement distance of the movable mold and causes the movable mold and the fixed mold to be unable to fit tightly when the roller moves to the end of the first spiral guide groove, thereby causing flash to be generated at the bottom edge of the foaming and shaping. Therefore, a compensation guide groove is provided at the end of the first spiral guide groove to prevent the end of the first spiral guide groove from hindering the sliding column from driving the roller to continue to descend, thereby performing pressure compensation on the contact surface between the movable mold and the fixed mold, thereby ensuring that the movable mold and the fixed mold can still fit tightly after wear, avoiding the generation of flash. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention during mold closing.

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention when the mold is opened.

[0023] Figure 4 for Figure 3 A schematic diagram of the enlarged structure.

[0024] Figure 5 This is a schematic diagram of the cross-sectional structure of the assembly of the rotating cylinder and the sliding column during the mold closing process of the present invention.

[0025] Figure 6 This is a schematic diagram of the cross-sectional structure of the assembly of the rotating cylinder and the sliding column during mold closing of the present invention.

[0026] Figure 7 It is a schematic diagram of the cross-sectional structure of the rotary drum of the present invention.

[0027] Figure 8 It is a schematic cross-sectional structural diagram of the demoulding component of the present invention.

[0028] Figure 9 for Figure 8 Schematic diagram of the enlarged structure at point B.

[0029] Figure 10 It is a schematic diagram of the pressure plate assembly structure of the present invention.

[0030] In the figure: 1. base; 11. fixed rod; 12. ejector frame; 13. guide rod; 2. fixed mold; 21. positioning column; 211. slot; 212. socket; 22. movable frame; 23. ejector seat; 3. movable mold; 31. fixed sleeve; 32. rotating cylinder; 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 block; 33. spring; 34. slip ring; 4. pressure plate; 41. T-shaped guide rail; 42. slide plate; 43. slide seat; 44. double-headed screw; 45. connecting rod; 46. slide column; 461. roller. DETAILED DESCRIPTION

[0031] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention. The present invention is by no means limited to any specific configuration and algorithm proposed below, but covers any modification, replacement, and improvement of elements, components, and algorithms without departing from the spirit of the present invention. In the accompanying drawings and the following description, known structures and techniques are not shown to avoid causing unnecessary ambiguity to the present invention.

[0032] Example 1, with reference to Figure 1-10 , which is the first embodiment of the present invention, provides a foaming and shaping device for high-end midsole production, which includes a base 1 and a pressing plate 4 slidably arranged above the base 1, a fixed mold 2 is fixed on the base 1, a plurality of positioning columns 21 are vertically slidably connected in the fixed mold 2, a plurality of positioning columns 21 are connected to the bottom of the demoulding assembly, a movable mold 3 is fixed to the bottom of the pressing plate 4, a plurality of through holes are provided on the movable mold 3 corresponding to the plurality of positioning columns 21, a fixing sleeve 31 is fixedly installed in each of the plurality of through holes, a rotating cylinder 32 is provided in each of the plurality of fixing sleeves 31, an L-shaped block 326 is fixed to the bottom of each of the plurality of rotating cylinders 32, and a clamping groove 211 is provided on the top of each of the plurality of positioning columns 21 to slide with the L-shaped block 326; A guide groove structure is provided on the inner side of the rotating drum 32, and a slide post 46 is slidably passed through the pressure plate 4. One side of the slide post 46 is rotatably connected to a roller 461 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 in sequence. The end of the second spiral guide groove 324 is connected to the middle of the first vertical guide groove 321, and a compensation guide groove 325 extends from the end of the first spiral guide groove 322.

[0033] An insertion hole 212 for the L-shaped block 211 to pass through is defined between the bottom of the slot 211 and the top of the positioning post 21 .

[0034] The demoulding assembly includes a moving frame 22 fixedly connected between the bottoms of a plurality of positioning columns 21 and two ejection seats 23 fixed on the top of the moving frame 22 .

[0035] The fixed mold 2 is provided with two shaping grooves, and the two ejection seats 23 are slidably connected in the two shaping grooves respectively.

[0036] A slip ring 34 is slidably connected inside the fixed sleeve 31 , a spring 33 is fixedly connected between the top of the slip ring 34 and the fixed sleeve 31 , and the rotating drum 32 is rotatably connected to the bottom of the slip ring 34 .

[0037] A plurality of fixing rods 11 are fixed on the base 1 , a top frame 12 is fixedly mounted on the top of the plurality of fixing rods 11 , and the pressing plate 4 is vertically slidably arranged below the top frame 12 .

[0038] Two slides 42 are symmetrically and slidably connected inside the top frame 12, and two groups of inclined T-shaped guide rails 41 are symmetrically fixed on the top of the pressure plate 4. Slide seats 43 are slidably sleeved on the outside of the two groups of T-shaped guide rails 41, and the two groups of slide seats 43 are fixedly connected to the bottom of the two slides 42 respectively.

[0039] A double-headed screw rod 44 is rotatably connected in the top frame 12 , and two slide plates 42 are screwed together at both ends of the double-headed screw rod 44 . The ends of the double-headed screw rod 44 are provided with hexagonal grooves.

[0040] Two guide rods 13 are fixedly installed in the top frame 12 , and the two guide rods 13 slide through the two slide plates 42 .

[0041] The plurality of slide posts 46 are divided into two groups, and the two groups of slide posts 46 are symmetrically arranged. The tops of the two groups of slide posts 46 are rotatably connected to connecting rods 45 , and the ends of the two groups of connecting rods 45 are rotatably connected to the bottoms of the two slide plates 42 respectively.

[0042] During use, the mold base is placed in the fixed mold 2, and the mold base is located above the ejector seat 23. Then, a fixed torque electric wrench can be inserted into the hexagonal groove at the end of the double-headed screw 44 to drive the hexagonal groove to rotate, thereby driving the double-headed screw 44 to rotate, so that the two slides 42 connected together slide along the two guide rods 13 to both sides respectively. The two slides 42 are slidably matched with the two sets of slides 43 and the two sets of T-shaped guide rails 41, so that the two sets of slides 43 slide along the two sets of T-shaped guide rails 41 respectively. Since the T-shaped guide rails 41 are inclined The arrangement is such that both sets of slides 43 move in a direction away from the pressure plate 4, thereby causing the slide plate 42 and the pressure plate 4 to move relatively away from each other. The slide plate 42 is fixed in a vertical direction relative to the top frame 12 by the guide rod 13, thereby causing the pressure plate 4 to move downward relative to the top frame 12. At the same time, the two slides 42 drive one end of the two sets of connecting rods 45 to move toward both sides when moving toward both sides, thereby causing the other ends of the two sets of connecting rods 45 to push the two sets of sliding columns 46 to move downward, causing the bottom ends of the sliding columns 46 to extend into the rotating drum 32 and move downward along the axis of the rotating drum 32. When the pressing plate 4 moves downward, it pushes the movable mold 3 and the fixed sleeve 31 to move downward, and the spring 33 in the fixed sleeve 31 pushes the slip ring 34 and the rotating cylinder 32 to move downward until the bottom of the rotating cylinder 32 contacts the top of the positioning post 21, so that the L-shaped block 326 at the bottom of the rotating cylinder 32 extends into the top insertion hole 212 of the positioning post 21, so that the L-shaped block 326 at the bottom of the rotating cylinder 32 extends to one side of the top card slot 211 of the positioning post 21, and at this time, the sliding post 46 drives the roller 461 to move downward along the first vertical guide groove 321 inside the rotating cylinder 32 to the bottom end of the first vertical guide groove 321, and then as the double-headed screw 44 continues to rotate, the two slides 42 continue to move to both sides along the guide rod 13, so that the pressing plate 4 and the sliding post 46 continue to move downward respectively. After the bottom of the rotating cylinder 32 contacts the top of the positioning post 21, the rotating cylinder 32 cannot continue to move downward. When the pressing plate 4 pushes the movable mold 3 and the fixed sleeve 31 to move downward, the fixed sleeve 31 and the slip ring 34 compress the multiple springs 33. At the same time, the roller 461 on one side of the slide post 46 moves into the first spiral guide groove 322. Since the slide post 46 drives the roller 461 to move vertically downward, the roller 461 pushes the first spiral guide groove 322 to rotate the rotating cylinder 32. The rotating cylinder 32 drives the L-shaped block 326 at the bottom of the rotating cylinder 32 to rotate and extend into the top slot 211 of the positioning column 21, so that the rotating cylinder 32 and the positioning column 21 are relatively fixed in the vertical direction. When the pressing plate 4 pushes the contact surface of the movable mold 3 and the fixed mold 2 to fit tightly and lock, 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. Then, after the mold base is foamed, the foamed and expanded midsole is shaped by the shaping groove in the fixed mold 2 and the molding space limited by the movable mold 3 and the ejector seat 23, and the device is cooled and shaped. When the midsole needs to be taken out after the foaming and shaping of the midsole is completed, the double-headed screw 44 is rotated in the opposite direction by the fixed torque electric wrench to make the two slides 42 move toward the middle along the two guide rods 13. The two slides 42 slide along the two sets of T-shaped guide rails 41 through the sliding cooperation of the two sets of slides 43 and the two sets of T-shaped guide rails 41, so that the two sets of slides 43 move toward the direction close to the pressure plate 4, thereby making the slides 42 and the pressure plate 4 relatively close, and then making the pressure plate 4 move upward relative to the top frame 12. At the same time, when the two slides 42 move toward the middle, they drive one end of the two sets of connecting rods 45 to move toward the middle, so that the other ends of the two sets of connecting rods 45 pull the two sets of sliding posts 46 to move upward, so that the bottom ends of the sliding posts 46 move upward along the axis of the rotating drum 32; When the pressure plate 4 moves upward, it drives the movable mold 3 and the fixed sleeve 31 to move upward, so that the contact surface of the movable mold 3 and the fixed mold 2 are separated, and the sliding column 46 drives the roller 461 to move upward. Since the roller 461 is located at the bottom end of the second vertical guide groove 323 when the mold is closed and locked, the roller 461 moves upward and directly enters the second vertical guide groove 323. Before the roller 461 moves up to the same height as the bottom end of the first vertical guide groove 321, the multiple springs 33 in the fixed sleeve 31 in the compressed state gradually expand. The long recovery length is until the rotating cylinder 32 contacts the bottom of the fixed sleeve 31. During this process, the rotating cylinder 32 will not move upward, so that the positioning column 21 remains relatively stationary with the fixed mold 2 in the vertical direction, so that when the movable mold 3 moves upward, the top of the foamed and shaped middle bottom in the molding groove of the fixed mold 2 is separated from the bottom of the movable mold 3, and then the double-headed screw 44 is rotated in the opposite direction to make the two slides 42 continue to move toward the middle, so that the pressing plate 4 and the sliding column 46 continue to move upward respectively, and 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 cylinder 32 to move upward. Since the L-shaped block 326 at the bottom of the rotating cylinder 32 has been rotated and extended into the slot 211 at the top of the positioning column 21 during the above process, the rotating cylinder 32 drives the positioning column 21 to move upward when it moves upward, so that multiple positioning columns 21 move upward in the fixed mold 2, thereby causing multiple positioning columns 21 to drive the movable frame 22 to move upward, and then the movable frame 22 drives the ejector 23 in the fixed mold 2 The ejector seat 23 moves upward in the shaping groove of the fixed mold 2, so that the ejector seat 23 pushes the foamed and shaped midsole upward. As the ejector seat 23 moves upward, the ejector seat 23 gradually pushes the foamed and shaped midsole out of the shaping groove of the fixed mold 2. In this way, 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 separation. At this time, the foamed and shaped midsole can be directly pushed out from between the movable mold 3 and the fixed mold 2, which greatly improves the efficiency of removing the midsole. Then continue to rotate the double-headed screw 44 in the opposite direction by the fixed torque electric wrench so that the two slides 42 move toward the middle along the two guide rods 13, so that the pressure plate 4 and the slide post 46 continue to move upward respectively, and the slide post 46 drives the roller 461 to move from the top end of the second vertical guide groove 323 to the inside of the second spiral guide groove 324. Since the pressure plate 4 is moved by the slide seat 43 and the T-shaped guide rail 41, the slide post 46 is moved upward by the connecting rod 45. When the roller 461 on one side of the slide post 46 moves in the second spiral guide groove 324, the rising speed of the slide post 46 is greater than the rising speed of the pressure plate 4, that is, the rising speed of the slide post 46 is greater than the rising speed of the rotating drum 32, so that the roller 461 moves upward relative to the rotating drum 32, so that when moving along the second spiral guide groove 324, the roller 461 will push the second spiral guide groove 324 to make the rotating drum 32 rotate in the opposite direction around the vertical axis. When the cam 324 is in the first position, the cam 326 of the second cam 324 is in the first position, and the cam 326 of the second cam 324 is in the second position, so that the cam 326 of the second cam 324 is in the first position, and the cam 326 of the second cam 324 is in the second position. Finally, as the constant torque electric wrench continues to rotate the double-headed screw 44 in the opposite direction, the pressing plate 4 drives the movable mold 3 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 is convenient for applying the release agent and placing the embryo mold, so that the foaming and shaping operation of the next midsole can be carried out.

[0043] To sum up, the locking of the movable mold 3 and the fixed mold 2 can be completed by simply rotating a double-headed screw 44 through a constant torque electric wrench. When opening, the movable mold 3 and the fixed mold 2 can be separated by simply rotating a double-headed screw 44 in the opposite direction through a constant torque electric wrench. The operation is simple and efficient.

[0044] In addition, the movable mold 3 and the fixed mold 2 are locked with a compression structure. During the mold closing process, when the movable mold 3 and the fixed mold 2 are squeezed and locked multiple times, the contact surface of the movable mold 3 and the fixed mold 2 is worn and lost, which increases the distance the movable mold 3 needs to move downward when the mold is closed and locked, thereby increasing the distance the two slides 42 move to both sides along the guide rod 13, and then causing the connecting rod 45 to push the slide column 46 to increase the distance the slide column 46 moves downward, resulting in 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 they cannot fit tightly, thereby causing flash to be generated at the bottom edge of the foaming molding, in order to avoid flash. In order to produce the edge, it is preferred that a compensation guide groove 325 is extended from the end of the first spiral guide groove 322, 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, so that the roller 461 can continue to move downward relative to the rotating cylinder 32 after the contact surface of the movable mold 3 and the fixed mold 2 is squeezed and worn, thereby avoiding the roller 461 from hindering the downward movement of the sliding column 46, and further avoiding hindering the movement of the connecting rod 45 and the slide plate 42, so that the distance that the pressure plate 4 can move downward is increased, and the contact surface of the movable mold 3 and the fixed mold 2 is pressure compensated, thereby ensuring that the movable mold 3 and the fixed mold 2 can still fit tightly after extrusion and wear, thereby avoiding the presence of flash in the produced midsole.

[0045] Preferably, a larger diameter fillet is provided at the connection between the compensation guide groove 325 and the second vertical guide groove 323. When performing the mold opening operation after the roller 461 enters the compensation guide groove 325, when the slide column 46 drives the roller 461 to move upward, the roller 461 first moves upward along the compensation guide groove 325, and then the roller 461 rolls along the fillet 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, its mold opening and demolding operations are consistent with the above process, so that even after the contact surface of the movable mold 3 and the fixed mold 2 is squeezed and worn, the demolding operation of the demolding assembly can still be achieved, which is more efficient.

[0046] In addition, the two symmetrically arranged slides 42 ensure that when the double-headed screw 44 is rotated to close the mold and lock it, the two slides 42 move the same distance to both sides, so that when the two sets of slides 43 move along the two sets of T-shaped guide rails 41, the pressure plate 4 moves the same distance in the vertical direction relative to the two sets of slides 43, so that the pressure plate 4 pushes the movable mold 3 downward horizontally, and after the contact surfaces of the movable mold 3 and the fixed mold 2 collide, the two symmetrically arranged slides 42 cause both sides of the pressure plate 4 to be simultaneously thrust downward, so that both sides of the pressure plate 4 push the movable mold 3 downward and lock it with the fixed mold 2. The operation is simple and the efficiency is high, and the pressure on both sides of the pressure plate 4 is consistent and evenly distributed, so that the pressure plate 4 can provide a uniform locking force when pushing the movable mold 3 downward and locking it with the fixed mold 2, so that the pressure in the cavity is consistent when the mold is closed, thereby ensuring the foaming quality of the embryo mold.

[0047] 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 slides move to both sides, the downward movement distance of the two groups of slide columns 46 is consistent, ensuring the synchronous connection and release of the rotating cylinders 32 and the positioning columns 21 on both sides, so that the demolding assembly is subjected to upward pulling force on both sides at the same time when moving upward, so that the ejection seat 23 ejects the midsole horizontally.

[0048] Different technical features appearing in different embodiments can be combined to achieve beneficial effects. Those skilled in the art should be able to understand and implement other variations of the disclosed embodiments based on a study of 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" and "second" are used to identify names rather than to indicate any specific order. Any figure marks 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 separate 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 by: The invention comprises a base (1) and a pressing plate (4) slidably arranged above the base (1), wherein a fixed mold (2) is fixed on the base (1), a plurality of positioning columns (21) are vertically slidably connected in the fixed mold (2), a plurality of the bottoms of the positioning columns (21) are connected to a demoulding assembly, a movable mold (3) is fixed on the bottom of the pressing plate (4), a plurality of through holes corresponding to the plurality of positioning columns (21) are provided on the movable mold (3), a plurality of fixed sleeves (31) are fixedly installed in the plurality of through holes, a plurality of rotating cylinders (32) are provided in the plurality of fixed sleeves (31), an L-shaped clamping block (326) is fixed on the bottom of the plurality of rotating cylinders (32), and a plurality of the positioning columns (21) are provided with a clamping groove (211) slidably matched with the L-shaped clamping block (326) on the top of the plurality of positioning columns (21); A guide groove structure is provided on the inner side of the rotating drum (32), and a slide column (46) is slidably passed through the pressure plate (4), and one side of the slide column (46) is rotatably connected to a roller (461) in the guide groove structure. 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) which are connected in sequence end to end, the end of the second spiral guide groove (324) being connected to the middle of the first vertical guide groove (321), and a compensation guide groove (325) extending from the end of the first spiral guide groove (322).

2. The foaming and shaping device for high-end midsole production according to claim 1, characterized in that: A socket (212) for the L-shaped card block (326) to pass through is provided between the bottom of the card slot (211) and the top of the positioning column (21).

3. The foaming and shaping device for high-end midsole production according to claim 1, characterized in that: The demoulding assembly comprises a movable frame (22) fixedly connected between the bottoms of a plurality of positioning columns (21) and two ejection seats (23) fixed on 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 grooves, and the two ejection seats (23) are respectively slidably connected in the two shaping grooves.

5. The 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), a spring (33) is fixedly connected between the top of the slip ring (34) and the fixed sleeve (31), and the rotating drum (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: A plurality of fixing rods (11) are fixed on the base (1), a top frame (12) is fixedly mounted on the top of the plurality of fixing rods (11), and the pressing plate (4) is vertically slidably arranged below the top frame (12).

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

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

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

10. The foaming and shaping device for high-end midsole production according to claim 7, characterized in that: The plurality of sliding columns (46) are divided into two groups, and the two groups of sliding columns (46) are symmetrically arranged. The tops of the two groups of sliding columns (46) are rotatably connected to connecting rods (45), and the ends of the two groups of connecting rods (45) are rotatably connected to the bottoms of the two slide plates (42).

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