An injection mold for sports shoe processing

Abstract

The present invention discloses an injection mold for sports shoe processing, which relates to the technical field of sports shoe processing. The mold comprises a workbench, an upper mold, and a lower mold. The lower mold is slidably arranged above the workbench, a support frame is provided at one end above the workbench, the upper mold is arranged on the support frame directly above the lower mold, the upper mold is assembled and connected to the support frame through a first cylinder, a spray frame is foldably provided on the support frame between the upper mold and the lower mold, a plurality of upper modules and lower mold grooves are provided below the upper mold and above the lower mold, a heat conducting pipe and a condensing pipe are provided inside the upper mold and the lower mold near the upper modules and the lower mold groove, and a disassembly mechanism is provided inside the lower mold. The present invention lifts the rubber sole and injects more gas into the rubber sole through the unloading mechanism, so that the rubber sole and the lower mold groove are more easily demolded. During the discharge process in the gas chamber, the suction cup sucks and lifts the rubber sole, which can greatly reduce the friction between the rubber sole and the lower mold, thereby achieving the effect of easy unloading.

Description

Technical Field

[0001] The invention relates to the technical field of sports shoe processing, in particular to an injection mold for sports shoe processing. Background Art

[0002] Injection molding is usually divided into rubber injection molding and plastic injection molding, and injection molding can be further divided into injection molding and die casting. When processing the soles of sports shoes, die casting is usually used for rubber injection molding. The injection mold is usually divided into two parts, upper and lower. The rubber is placed between the two molds and heated and pressurized until the rubber melts and adheres to the inner wall of the mold. After the die casting is completed, it can be taken out and trimmed.

[0003] For example, "CN105818338B" is a shoe sole injection mold for manufacturing, comprising a mold body, an injection molding groove formed on the mold body, and ejection holes evenly spaced at the bottom of the inner cavity of the injection molding groove. A top block is clamped to the inner cavity of the ejection hole, and the outer wall of the top block fits the inner wall of the ejection hole. A top rod is fixed to the bottom end of the top block, and the bottom end of the top rod extends to the bottom of the mold body. A limiting base is also fixed to the bottom end of the top rod, and a limiting bolt is screwed on the top of the limiting base, and a return spring is sleeved between the limiting bolt and the top block. The shoe sole injection mold for manufacturing has a simple structure. During the process of injecting the sole, the molded sole can be ejected by the return spring and the top block, and the sole will not stick to the mold, which greatly ensures the quality of the sole and improves the yield rate of sole production.

[0004] However, in the prior art, when using molds to injection-mold sports shoe soles, workers are usually required to first place the injection molding raw material, that is, a rubber sheet that has been preliminarily trimmed to a certain size, in a lower mold, and then start the equipment to squeeze the upper and lower molds. After the extrusion is completed, the two molds are separated, and the workers need to pull the pressed soles out. When the pressed soles are taken out, the rubber soles still have a certain amount of heat, and the workers are likely to burn their hands during the manual removal process. At the same time, there is a certain degree of stickiness between the rubber and the mold, and the rubber soles are easily pulled and damaged during forced separation, affecting product quality. Summary of the Invention

[0005] In view of the above existing problems, the present invention is proposed.

[0006] The purpose of the present invention is to solve the problem in the prior art that the unloading of rubber soles is usually done manually, there is a certain viscosity between the rubber and the mold, and the rubber soles are easily pulled and damaged during forced separation, which affects product quality.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] On the one hand, the present invention provides an injection mold for sports shoe processing, which includes a workbench, an upper mold and a lower mold, the lower mold is slidably arranged above the workbench, a support frame is provided at one end above the workbench, the upper mold is arranged on the support frame directly above the lower mold, the upper mold is assembled and connected to the support frame through a first cylinder, a spray frame is foldably provided on the support frame between the upper mold and the lower mold, a plurality of upper modules and lower mold grooves are respectively provided below the upper mold and above the lower mold, a heat conduction pipe and a condensation pipe are respectively provided inside the upper mold and the lower mold near the upper module and the lower mold groove, a disassembly mechanism is provided inside the lower mold, the disassembly mechanism includes a first screw rod, a second screw rod, a push rod and a push tube, the push tube is provided with a plurality of and The cam is connected to the push rod by a screw thread, and the cam is connected to the push rod by a screw thread, and the cam is connected to the push rod by a screw thread.

[0009] Furthermore, a longitudinal groove is provided at the center of the lower die groove, and the push tube is slidably arranged in the longitudinal groove. The upper end of the longitudinal groove is connected to a push groove adapted to the push head, and an interference layer is provided at the edge of the push groove. The interference layer is an alloy memory metal. During the hot pressing process, the push tube shrinks in the longitudinal groove, and the push head shrinks in the push groove. During the heating process, after reaching a certain temperature, the alloy memory metal expands slightly and is squeezed with the edge of the push head, greatly reducing the gap and preventing the melted rubber liquid from flowing into the gap between the push head and the push groove. After the hot pressing is completed, it is condensed and the temperature of the alloy memory metal decreases. When it drops to a certain temperature, it gradually recovers. The push head can slide between the interference layer to facilitate unloading. The material of the alloy memory metal can be nickel-titanium alloy, which has a high temperature resistance range of -50 degrees to 200 degrees, an expansion temperature of 80 degrees to 100 degrees, and a recovery temperature of 30 degrees to 40 degrees.

[0010] Furthermore, a nozzle is provided above the inside of the push tube, and the nozzles are provided with multiple nozzles and are connected to the nozzle. One end of the pipe passes through the side wall of the push tube and is connected to the nozzle. An air groove is provided on the push tube at the nozzle position, and the outer wall of the nozzle is sealingly assembled with the air groove. The side wall of the longitudinal groove is provided with an assembly groove which is arranged in a one-to-one correspondence with the nozzle. A sealing block is provided in the assembly groove through a spring, and the sealing block is sealed with the air groove and the nozzle. When the push tube slides out of the longitudinal groove, the upward thrust squeezes the sealing block to shrink into the assembly groove. Conversely, when the push tube is reset in the longitudinal groove, the spring pushes the sealing block to engage with the air groove. Both the spring and the sealing block are made of high-temperature resistant material and will not deform during the hot pressing process of the rubber sole. The setting of the sealing block can avoid the gas in the air chamber from overflowing from the nozzle and entering the lower mold groove during the heating process. The gas in the air chamber enters the nozzle through the pipe and is ejected from the nozzle.

[0011] Furthermore, a fan-shaped groove is connected to the lower end of the longitudinal groove, the connecting strip is movably arranged in the fan-shaped groove, the push rod is slidably arranged in multiple fan-shaped grooves, and one end of the first screw rod is rotatably connected to the end face of the push rod.

[0012] Furthermore, a main screw is provided above one side of the workbench, and a sliding rod is provided above the other side. The lower sides of the lower mold are respectively connected to the main screw by threads through sliders and slidingly connected to the sliding rods. The main screw is driven to rotate by a first motor. By driving the first motor to drive the main screw to rotate, the lower mold can be driven to slide on the workbench to realize unloading or pressing operations.

[0013] Furthermore, the first screw rod and the second screw rod are arranged inside the side wall of the lower mold and the outer wall is respectively threadedly connected to the lower mold, the first screw rod and the second screw rod are arranged on the outer end and are respectively provided with a long gear, the outer wall of the lower mold is slidably provided with a gear frame, and the inner wall of the gear frame is provided with a rack meshing with the long gear, the pitch of the outer wall thread of the second screw rod is longer than the pitch of the first screw rod, and a through groove is provided at the center position of the second screw rod, the interior of the gas chamber is connected with the outside through the through groove, and the long gear is driven to rotate by sliding the gear frame, driving the first screw rod and the second screw rod to rotate with the lower mold, thereby achieving the situation that the first screw rod and the second screw rod are extended into or pulled out of the lower mold. Since the distance the piston moves in the gas chamber is relatively long, when the pitch of the second screw rod is longer, the second screw rod can extend into the lower mold for a longer distance by rotating one circle, which is convenient for rapid gas discharge. Through the provided through groove, the pressure in the gas chamber can be changed during the gas heating process in the gas chamber, thereby ensuring the pressure balance in the gas chamber.

[0014] Furthermore, the tooth frames are provided with two groups and are slidably arranged on both sides of the lower mold respectively. The end face of the lower mold is provided with an end frame through the second cylinder. The two ends of the end frame are assembled and connected with the two end faces of the tooth frames. By driving the second cylinder, the two end frames are driven to move synchronously, so that when the second cylinder is driven, the push tube can push the rubber sole and the air chamber can be exhausted, which can effectively save resources.

[0015] Furthermore, a material barrel is provided inside the workbench, and the material barrel is connected to the spray rack through a pump body. The spray rack includes a fixed frame, a connecting pipe, a third cylinder and a spray pipe. A plurality of the spray pipes are arranged at intervals, and adjacent spray pipes are assembled and connected by connecting pipes. Adjacent end faces of the connecting pipes are rotatably connected and connected by a folding pipe. A sleeve is rotatably provided on the two spray pipes at both ends. In the expanded state, the spray pipe is symmetrically provided with multiple spray heads up and down, and the spray heads are corresponding to the lower mold groove and the upper module. Both ends of the third cylinder are assembled and connected to the lower end of the sleeve, and the sleeve is fixedly assembled and connected to the fixed frame. By extending and retracting the third cylinder, the adjacent connecting pipes can be driven to fold or expand, thereby driving the entire spray rack to expand or fold, so as to avoid affecting the hot pressing work.

[0016] Furthermore, the laying structure of the heat-conducting pipe and the condensing pipe is the same, and both are laid in an S-shape. The lower mold and the upper mold are respectively provided with heat-conducting plates near the lower mold groove and the interior of the upper module. The heat-conducting pipe and the condensing pipe are covered with heat-conducting sleeves on the outside. The heat-conducting sleeves are assembled and connected to the heat-conducting plates through heat-conducting strips. The flat arrangement of the heat-conducting plates can make the rubber sole located between the upper module and the lower mold groove heated more evenly.

[0017] Furthermore, a top seat is provided on one side of the workbench through a rotation of the unloading rack, and the top seat is driven to rotate by a second motor, a transition plate is provided below the top seat through a fourth cylinder, and the transition plate is assembled and connected to the unloading plate through a fifth cylinder below. The upper end of the suction cup is passed through the unloading plate, and a sealing plug is provided below the transition plate through an inner shaft, and the sealing plug is slidably arranged inside the suction cup. By moving the fourth cylinder downward, the bottom of the suction cup is squeezed and contacted with the surface of the rubber sole, and the fifth cylinder is contracted to drive the piston upward to firmly adsorb the suction cup and the rubber sole. Contracting the fourth cylinder can separate the rubber sole from the lower mold, and driving the second motor to rotate the unloading plate to facilitate material discharge.

[0018] The beneficial effects of the present invention are:

[0019] 1. The present invention lifts the rubber sole and injects more gas through the unloading mechanism, making it easier to demold the rubber sole and the lower mold groove. During the discharge process in the air chamber, the suction cup sucks and lifts the rubber sole, which can greatly reduce the friction between the rubber sole and the lower mold, achieving the effect of easy unloading.

[0020] 2. The present invention drives the two end frames to move synchronously by driving the second cylinder, so that the push tube can push the rubber sole and the air chamber can be exhausted at the same time as the second cylinder is driven, which can effectively save resources.

[0021] 3. The present invention can drive the adjacent connecting pipes to fold or unfold by extending and retracting the third cylinder, thereby driving the entire spray rack to unfold or fold, avoiding affecting the hot pressing work.

[0022] 4. The present invention can make the rubber sole located between the upper module and the lower mold groove be heated more evenly by laying the heat conductive sheet flat.

[0023] 5. During the hot pressing process of the present invention, the push tube shrinks in the longitudinal groove, and the push head shrinks in the push groove. During the heating process, after reaching a certain temperature, the alloy memory metal expands slightly and is squeezed with the edge of the push head, greatly reducing the gap and preventing the melted rubber liquid from flowing into the gap between the push head and the push groove. After the hot pressing is completed, it is condensed and the temperature of the alloy memory metal decreases. When it drops to a certain temperature, it gradually recovers, and the push head can slide between the interference layer to facilitate unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A three-dimensional diagram of an injection mold for sports shoes provided by the present invention;

[0026] Figure 2 This is a schematic diagram of the assembly of a workbench, an upper mold, and a lower mold for an injection mold for sports shoes provided by the present invention;

[0027] Figure 3 A schematic diagram of the internal structure of an upper mold and a lower mold of an injection mold for sports shoes provided by the present invention;

[0028] Figure 4 A schematic diagram of the internal structure of a lower mold of an injection mold for sports shoes provided by the present invention;

[0029] Figure 5 A schematic diagram of the internal structure of a lower mold of an injection mold for sports shoes provided by the present invention;

[0030] Figure 6 A schematic diagram of a disassembly mechanism of an injection mold for sports shoes provided by the present invention;

[0031] Figure 7 A schematic diagram of the internal structure of a push tube of an injection mold for sports shoe processing provided by the present invention;

[0032] Figure 8 The present invention provides an injection mold for sports shoes processing Figure 4 A schematic diagram of the structure at center A;

[0033] Figure 9 A schematic diagram of a folded state of a spray frame of an injection mold for sports shoe processing provided by the present invention;

[0034] Figure 10 This is a schematic diagram of a discharge rack of an injection mold for sports shoe processing provided by the present invention.

[0035] Legend:

[0036] 1. Workbench; 2. Upper mold; 3. Lower mold; 4. Support frame; 5. First cylinder; 6. Spray frame; 7. Upper module; 8. Lower mold groove; 9. Heat pipe; 10. Condenser; 111. First screw rod; 112. Second screw rod; 113. Push rod; 114. Push pipe; 115. Push head; 116. Connecting strip; 117. Spray head; 118. Air chamber; 119. Pipeline; 120. Piston; 131. Unloading plate; 132. Suction cup; 141. Vertical groove; 142. Push groove; 143. Interference layer; 151. Spray pipe; 152. Air groove; 153. Assembly groove; 154. Spring; 155. Sealing block; 16. Sector groove; 171. Main screw; 172, sliding rod; 173, slider; 174, first motor; 181, long gear; 182, gear frame; 183, rack; 184, through slot; 191, second cylinder; 192, end frame; 20, barrel; 211, fixing frame; 212, connecting pipe; 213, third cylinder; 214, spray pipe; 215, sleeve; 216, folding pipe; 217, spray head; 311, thermal pad; 312, thermal sleeve; 313, thermal strip; 411, unloading rack; 412, top seat; 413, second motor; 414, fourth cylinder; 415, transition plate; 416, fifth cylinder; 417, inner shaft; 418, sealing plug. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] Secondly, as referred to herein, "one embodiment" or "an embodiment" refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0040] See also Figures 1-10 The present invention provides a technical solution: an injection mold for processing sports shoes, comprising a workbench 1, an upper mold 2 and a lower mold 3, the lower mold 3 is slidably arranged above the workbench 1, a support frame 4 is provided at one end above the workbench 1, the upper mold 2 is arranged on the support frame 4 directly above the lower mold 3, the upper mold 2 is assembled and connected to the support frame 4 through a first cylinder 5, a spray frame 6 is foldably provided on the support frame 4 between the upper mold 2 and the lower mold 3, a plurality of upper modules 7 and lower mold grooves 8 are respectively provided below the upper mold 2 and above the lower mold 3, a heat conduction pipe 9 and a condensation pipe 10 are respectively provided inside the upper mold 2 and the lower mold 3 near the upper module 7 and the lower mold groove 8, a disassembly mechanism is provided inside the lower mold 3, the disassembly mechanism comprises a first screw rod 111, a second screw rod 112, a push rod 113 and a push tube 114, the push tube 114 is provided with a plurality of and is slidably arranged in the lower mold groove 8 At the center position, a push head 115 is provided at the upper end of the push tube 114, and the upper end of the push head 115 is flush with the lower mold groove 8. One end of the first screw rod 111 is assembled and connected to one end of the push rod 113. The lower end of the push tube 114 is hinged with a connecting strip 116, and the lower end of the connecting strip 116 is hinged to the push rod 113. A nozzle 117 is provided on the side wall of the upper end of the push tube 114, and an air chamber 118 is provided inside the lower mold 3 on one side of the push tube 114. The interior of the air chamber 118 is connected with the nozzle 117 through a pipe 119. A piston 120 is provided inside the air chamber 118 for sealing and sliding. The piston 120 is driven to move by the second screw rod 112. The first screw rod 111 and the second screw rod 112 are respectively connected to the internal threads of the lower mold 3. A discharge plate 131 is adjustable above the end of the workbench 1 away from the support frame 4, and a plurality of suction cups 132 corresponding to the lower mold groove 8 are provided below the discharge plate 131.

[0041] like Figures 1-10As shown, a longitudinal groove 141 is provided at the center of the lower die groove 8, and the push tube 114 is slidably arranged in the longitudinal groove 141. The upper end of the longitudinal groove 141 is connected to a push groove 142 adapted to the push head 115. An interference layer 143 is provided at the edge of the push groove 142. The interference layer 143 is an alloy memory metal. During the hot pressing process, the push tube 114 shrinks in the longitudinal groove 141, and the push head 115 shrinks in the push groove 142. During the heating process, the alloy memory metal expands slightly after reaching a certain temperature, and the push head 115 shrinks in the push groove 142. The edge is squeezed, which greatly reduces the gap and prevents the molten rubber liquid from flowing into the gap between the push head 115 and the push groove 142. After the hot pressing is completed, it is condensed and the temperature of the alloy memory metal decreases. When it drops to a certain temperature, it gradually recovers. The push head 115 can slide between the interference layer 143 to facilitate unloading. The material of the alloy memory metal can be nickel-titanium alloy, which has a high temperature resistance range of -50 degrees to 200 degrees, an expansion temperature of 80 degrees to 100 degrees, and a recovery temperature of 30 degrees to 40 degrees.

[0042] like Figures 1-10 As shown, a nozzle 151 is provided above the interior of the push tube 114, a plurality of nozzles 117 are provided and are connected to the nozzle 151, one end of the pipe 119 passes through the side wall of the push tube 114 and is connected to the nozzle 151, an air groove 152 is provided on the push tube 114 at the position of the nozzle 117, the outer wall of the nozzle 117 is sealed and assembled with the air groove 152, and the side wall of the longitudinal groove 141 is provided with an assembly groove 153 corresponding to the nozzle 117, and a sealing block 155 is provided in the assembly groove 153 through a spring 154, and the sealing block 155 is sealed and engaged with the air groove 152 and the nozzle 117. When the push tube 114 slides out of the longitudinal groove 141, the sealing block 155 is sealed and engaged with the air groove 152 and the nozzle 117. When the push tube 114 is reset in the longitudinal groove 141, the spring 154 pushes the sealing block 155 to engage with the air groove 152, wherein the spring 154 and the sealing block 155 are both made of high-temperature resistant materials and will not be deformed during the hot pressing process of the rubber sole. The setting of the sealing block 155 can avoid the gas in the air chamber 118 from overflowing from the nozzle 117 during the heating process and then entering the lower mold groove 8. The gas in the air chamber 118 enters the nozzle 151 through the pipe 119 and is ejected from the nozzle 117.

[0043] like Figures 1-10 As shown, the lower end of the longitudinal groove 141 is connected to a fan-shaped groove 16, the connecting bar 116 is movably set in the fan-shaped groove 16, the push rod 113 is slidably set in multiple fan-shaped grooves 16, and one end of the first screw rod 111 is rotatably connected to the end face of the push rod 113.

[0044] like Figures 1-10As shown, a main screw rod 171 is provided above one side of the workbench 1, and a slide rod 172 is provided above the other side. The lower sides of the lower mold 3 are respectively threadedly connected to the main screw rod 171 and slidably connected to the slide rod 172 through sliders 173. The main screw rod 171 is driven to rotate by the first motor 174. By driving the first motor 174 to drive the main screw rod 171 to rotate, the lower mold 3 can be driven to slide on the workbench 1 to realize unloading or pressing operations.

[0045] like Figures 1-10 As shown, the first screw rod 111 and the second screw rod 112 are arranged inside the side wall of the lower mold 3 and the outer wall is respectively threadedly connected to the lower mold 3. The first screw rod 111 and the second screw rod 112 are arranged on the outer end and are respectively provided with a long gear 181. The outer wall of the lower mold 3 is slidingly provided with a gear frame 182. The lower inner wall of the gear frame 182 is provided with a rack 183 engaged with the long gear 181. The pitch of the outer wall thread of the second screw rod 112 is longer than the pitch of the first screw rod 111. A through groove 184 is provided at the center of the second screw rod 112. The interior of the air chamber 118 is connected to the outside through the through groove 184. By sliding the gear frame 182, the belt The dynamic gear 181 rotates, driving the first screw rod 111, the second screw rod 112 and the lower mold 3 to rotate in a threaded manner, thereby achieving the situation where the first screw rod 111 and the second screw rod 112 are extended into or pulled out of the lower mold 3. Since the distance that the piston 120 moves in the gas chamber 118 is relatively long, when the pitch of the second screw rod 112 is longer, the second screw rod 112 can extend a longer distance into the lower mold 3 by rotating one circle, which is convenient for rapid gas discharge. Through the provided through groove 184, the pressure in the gas chamber 118 can be changed during the gas heating process in the gas chamber 118, thereby ensuring the pressure balance in the gas chamber 118.

[0046] like Figures 1-10 As shown, there are two groups of tooth frames 182 and they are slidably arranged on both sides of the lower mold 3. The end face of the lower mold 3 is provided with an end frame 192 through the second cylinder 191. The two ends of the end frame 192 are assembled and connected with the end faces of the two tooth frames 182. By driving the second cylinder 191, the two end frames 192 are driven to move synchronously, so that when the second cylinder 191 is driven, the push tube 114 can push the rubber sole and the air chamber 118 can be exhausted, which can effectively save resources.

[0047] like Figures 1-10As shown, a barrel 20 is provided inside the workbench 1, and the barrel 20 is connected to the spray rack 6 through a pump body. The spray rack 6 includes a fixed frame 211, a connecting pipe 212, a third cylinder 213 and a spray pipe 214. A plurality of spray pipes 214 are arranged at intervals, and adjacent spray pipes 214 are assembled and connected by connecting pipes 212. The end faces of adjacent connecting pipes 212 are rotatably connected and connected by a folding pipe 216. A sleeve 215 is rotatably provided on the two spray pipes 214 at both ends. In the unfolded state, the spray pipe 214 is symmetrically provided with a plurality of spray heads 217 up and down. The spray heads 217 are arranged corresponding to the lower mold groove 8 and the upper module 7. The two ends of the third cylinder 213 are assembled and connected to the lower end of the sleeve 215, and the sleeve 215 is fixedly assembled and connected to the fixed frame 211. By retracting and contracting the third cylinder 213, the adjacent connecting pipes 212 can be driven to fold or unfold, thereby driving the entire spray rack 6 to unfold or unfold, so as to avoid affecting the hot pressing work.

[0048] like Figures 1-10 As shown, the laying structure of the heat pipe 9 and the condenser tube 10 is the same, and both are laid in an S-shape. The lower mold 3 and the upper mold 2 are respectively provided with heat conducting plates 311 near the lower mold groove 8 and the upper module 7. The heat pipe 9 and the condenser tube 10 are externally covered with heat conducting sleeves 312. The heat conducting sleeves 312 are assembled and connected to the heat conducting plates 311 through heat conducting strips 313. The flat arrangement of the heat conducting plates 311 can make the rubber sole located between the upper module 7 and the lower mold groove 8 heated more evenly.

[0049] like Figures 1-10 As shown, a top seat 412 is provided on one side of the workbench 1 through a discharge rack 411, and the top seat 412 is driven to rotate by a second motor 413. A transition plate 415 is provided below the top seat 412 through a fourth cylinder 414. The transition plate 415 is assembled and connected to the discharge plate 131 through a fifth cylinder 416. The upper end of the suction cup 132 is passed through the discharge plate 131, and a sealing plug 418 is provided below the transition plate 415 through an inner shaft 417. The sealing plug 418 is slidably arranged inside the suction cup 132. By moving the fourth cylinder 414 downward, the bottom of the suction cup 132 is squeezed and contacted with the surface of the rubber sole, and the fifth cylinder 416 is contracted to drive the piston 120 upward, and the suction cup 132 and the rubber sole are firmly adsorbed. Contracting the fourth cylinder 414 can separate the rubber sole from the lower mold 3, and driving the second motor 413 to drive the discharge plate 131 to rotate, which is convenient for discharging.

[0050] Working principle: Before the injection molding operation, the spray rack 6 is unfolded, and the feed end of the spray rack 6 is used to communicate with the barrel 20. The release agent is evenly sprayed on the upper module 7 and the lower mold groove 8 through the spray rack 6 to facilitate subsequent demoulding. The cut rubber sheet is placed in the lower mold 3, and hot air is introduced into the heat pipe 9. The hot air can be produced by a combustion furnace or other heating equipment, and the first cylinder 5 is started to press down until the upper mold 2 and the lower mold 3 are tightly fitted. The hot air in the heat pipe 9 heats the rubber sheet to melt it and fill the space between the upper module 7 and the lower mold groove 8. After the hot pressing is completed, the hot air is stopped from being introduced into the heat pipe 9. Condensate is passed into the condenser 10 to refrigerate the rubber sole. After it is cooled and formed, the first cylinder 5 is contracted to drive the upper mold 2 to move upward. Since the upper module 7 protrudes outward and is relatively smooth, and under the action of gravity, the rubber sole can be more easily separated from the upper module 7, and the lower mold 3 is slid to the other end of the workbench 1, located just below the unloading plate 131. When the unloading plate 131 moves downward to suck up the suction cup 132 and the rubber sole, the unloading mechanism is started, and the first screw rod 111 and the second screw rod 112 are driven to rotate respectively, driving the push rod 113 at one end of the first screw rod 111 to pull the connection at the lower end of the push tube 114. The connecting strip 116 gradually becomes vertical, and the height of the lower end of the connecting strip 116 remains unchanged, and the length of the connecting strip 116 itself remains unchanged. When the connecting strip 116 is vertical, the upper end of the connecting strip 116 pushes the push tube 114 upward, and the push head 115 pushes the rubber sole and the lower mold groove 8 to create a gap. At the same time, the rotation of the second screw rod 112 can push the piston 120 to slide in the air chamber 118, squeezing the gas in the air chamber 118 to the nozzle 117 at the upper end of the push tube 114 and spraying it out from the nozzle 117. Since the nozzle 117 is below the push head 115, the gas can horizontally flush the connection between the rubber sole and the lower mold groove 8, reducing damage to the rubber shoe. The direct impact of the sole causes damage to the rubber sole. When more gas rushes into the space between the rubber sole and the lower mold groove 8, the gas will gradually be discharged from the side of the rubber sole, thereby realizing partial demoulding of the rubber sole and the side of the lower mold groove 8. During the discharge process in the air chamber 118, the suction cup 132 sucks and lifts the rubber sole, which can greatly reduce the friction between the rubber sole and the lower mold 3, achieving the effect of easy unloading. After the rubber sole is separated by the unloading plate 131, the unloading plate 131 is transferred to a storage area, such as a storage frame, and the suction cup 132 is released to put the rubber sole down, effectively ensuring the quality and safety of the rubber sole during unloading.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An injection mold for sports shoe processing, comprising a workbench (1), an upper mold (2) and a lower mold (3), wherein the lower mold (3) is slidably arranged above the workbench (1), a support frame (4) is provided at one end above the workbench (1), the upper mold (2) is arranged on the support frame (4) directly above the lower mold (3), and the upper mold (2) is assembled and connected to the support frame (4) via a first cylinder (5), characterized in that: A spray rack (6) is foldably provided on the support frame (4) between the upper mold (2) and the lower mold (3), and a plurality of upper modules (7) and lower mold grooves (8) are provided below the upper mold (2) and above the lower mold (3), respectively. Heat conduction pipes (9) and condensation pipes (10) are provided inside the upper mold (2) and the lower mold (3) near the upper modules (7) and the lower mold groove (8), respectively. A disassembly mechanism is provided inside the lower mold (3), and the disassembly mechanism includes a first screw rod (111), a second screw rod (112), a push rod (113) and a push tube (114). The push tube (114) is provided with a plurality of push rods and is slidably arranged at the center position of the lower mold groove (8). A push head (115) is provided at the upper end of the push tube (114), and the upper end of the push head (115) is flush with the lower mold groove (8). One end of the first screw rod (111) is assembled and connected with one end of the push rod (113). The lower end of the push tube (114) is hingedly provided with a connecting strip (116), and the lower end of the connecting strip (116) is hingedly provided with the push rod (113). The upper side wall of the push tube (114) is provided with a nozzle (117). An air chamber (118) is provided inside the lower mold (3) on one side of the push tube (114). The interior of the air chamber (118) is connected to the nozzle (117) through a pipe (119). A piston (120) is provided inside the air chamber (118) in a sealed and sliding manner. The piston (120) is driven to move by the second screw rod (112). The first screw rod (111) and the second screw rod (112) are respectively connected to the internal thread of the lower mold (3). A discharge plate (131) is adjustable above the end of the workbench (1) away from the support frame (4), and a plurality of suction cups (132) corresponding to the lower mold grooves (8) are provided below the discharge plate (131).

2. The injection mold for sports shoes according to claim 1, characterized in that: A longitudinal groove (141) is provided at the center of the lower die groove (8), and the push tube (114) is slidably arranged in the longitudinal groove (141). The upper end of the longitudinal groove (141) is connected to a push groove (142) adapted to the push head (115), and an interference layer (143) is provided at the edge of the push groove (142), and the interference layer (143) is an alloy memory metal.

3. The injection mold for sports shoes according to claim 2, characterized in that: A nozzle (151) is provided above the interior of the push tube (114), a plurality of nozzles (117) are provided and are connected to the nozzle (151), one end of the pipe (119) passes through the side wall of the push tube (114) and is connected to the nozzle (151), an air groove (152) is provided on the push tube (114) at the position of the nozzle (117), the outer wall of the nozzle (117) is sealed and assembled with the air groove (152), the side wall of the longitudinal groove (141) is provided with an assembly groove (153) corresponding to the nozzle (117), a sealing block (155) is provided in the assembly groove (153) through a spring (154), and the sealing block (155) is sealed and engaged with the air groove (152) and the nozzle (117).

4. The injection mold for sports shoes according to claim 2, characterized in that: The lower end of the longitudinal groove (141) is connected to a fan-shaped groove (16), the connecting bar (116) is movably arranged in the fan-shaped groove (16), the push rod (113) is slidably arranged in a plurality of the fan-shaped grooves (16), and one end of the first screw rod (111) is rotatably connected to the end face of the push rod (113).

5. The injection mold for sports shoes according to claim 1, characterized in that: A main screw (171) is provided above one side of the workbench (1), and a slide rod (172) is provided above the other side. The lower sides of the lower mold (3) are respectively connected to the main screw (171) by threads through the slide rods (173) and the slide rod (172) by sliding. The main screw (171) is driven to rotate by the first motor (174).

6. The injection mold for sports shoes according to claim 4, characterized in that: The first screw rod (111) and the second screw rod (112) are arranged inside the side wall of the lower mold (3) and the outer wall is respectively connected to the lower mold (3) by threads. The first screw rod (111) and the second screw rod (112) are arranged at one end and are respectively provided with a long gear (181). The outer wall of the lower mold (3) is provided with a gear frame (182) for sliding. A rack (183) is provided below the inner wall of the gear frame (182) and is meshed with the long gear (181). The pitch of the outer wall thread of the second screw rod (112) is longer than the pitch of the first screw rod (111). A through groove (184) is provided at the center of the second screw rod (112). The interior of the air chamber (118) is connected to the outside through the through groove (184).

7. The injection mold for sports shoes according to claim 6, characterized in that: The tooth frames (182) are provided with two groups and are slidably arranged on both sides of the lower mold (3). The end surface of the lower mold (3) is provided with an end frame (192) through a second cylinder (191). The two ends of the end frame (192) are assembled and connected with the end surfaces of the two tooth frames (182).

8. The injection mold for sports shoes according to claim 7, characterized in that: A barrel (20) is provided inside the workbench (1), and the barrel (20) is connected to the spray rack (6) through a pump body. The spray rack (6) comprises a fixed frame (211), a connecting pipe (212), a third cylinder (213) and a spray pipe (214). A plurality of spray pipes (214) are arranged at intervals, and adjacent spray pipes (214) are assembled and connected by connecting pipes (212). The end faces of adjacent connecting pipes (212) are connected by rotation and by bending. The stacked pipes (216) are connected, and sleeves (215) are rotatably provided on the two spray pipes (214) at both ends. In the unfolded state, the spray pipes (214) are symmetrically provided with multiple spray heads (217) above and below. The spray heads (217) are correspondingly arranged with the lower mold groove (8) and the upper mold module (7). The two ends of the third cylinder (213) are assembled and connected with the lower end of the sleeve (215), and the sleeve (215) is fixedly assembled and connected with the fixing frame (211).

9. The injection mold for sports shoes according to claim 1, characterized in that: The heat-conducting pipe (9) and the condensing pipe (10) have the same laying structure and are both laid in an S-shape. The lower mold (3) and the upper mold (2) are respectively provided with heat-conducting plates (311) near the lower mold groove (8) and the upper module (7). The heat-conducting pipe (9) and the condensing pipe (10) are externally covered with heat-conducting sleeves (312). The heat-conducting sleeves (312) are assembled and connected with the heat-conducting plates (311) through heat-conducting strips (313).

10. The injection mold for sports shoes according to claim 1, characterized in that: A top seat (412) is provided on one side of the workbench (1) for rotation via a discharge rack (411), and the top seat (412) is driven to rotate by a second motor (413). A transition plate (415) is provided below the top seat (412) via a fourth cylinder (414), and the transition plate (415) is assembled and connected to the discharge plate (131) via a fifth cylinder (416). The upper end of the suction cup (132) is passed through the discharge plate (131), and a sealing plug (418) is provided below the transition plate (415) via an inner shaft (417). The sealing plug (418) is slidably provided inside the suction cup (132).

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