Injection molding device and method for producing and processing soles

Abstract

The present invention discloses an injection molding device and method for sole production and processing, which relates to the technical field of sole production and processing, and aims to solve the technical problem that the color separation effect of the current injection molding device for sole production and processing can only be formed in the horizontal space, and the visual effect is relatively monotonous. The present invention includes a lower mold support structure, a mechanical arm, a lower mold, an upper mold and a discharge assembly. The present invention separates the lower mold cavity structure by an isolation protrusion, and introduces rubber materials of different colors through a heat flow pipe connected to an external auxiliary color rubber feeding device, so as to form a mixed color lower part of the sole. The cavity downward pressure structure enables the lower mold cavity structure to move downward as a whole, vacating the space for injection molding of the upper part of the sole, and introduces the main color rubber material through a heat flow pipe connected to an external main color rubber feeding device, so as to form the main color upper part of the sole, thereby generating a sole with only mixed colors at the bottom and the same color at the top, thereby optimizing the aesthetics of the sole.

Description

Technical Field

[0001] The present invention relates to the technical field of sole production, and more specifically, to an injection molding device and method for sole production and processing. Background Art

[0002] With the improvement of people's living standards and the pursuit of health and fashion, the demand for footwear continues to grow. Consumers not only pay attention to the appearance design of shoes, but also have higher requirements for their comfort, functionality and quality. This has prompted the footwear industry to continue to innovate and develop, and adopt more advanced production technologies and processes to meet market demand.

[0003] As an important part of shoes, the sole directly affects the wearing experience, performance and life of the shoes. It undertakes multiple functions such as providing support, cushioning, anti-skid, and wear resistance. Different types of shoes, such as sports shoes, leather shoes, and casual shoes, have different performance requirements for the sole. For example, sports shoes need to have good elasticity, shock absorption and grip to adapt to various movements and impact during exercise; leather shoes pay more attention to the texture and wear resistance of the sole to maintain the overall beauty and durability; casual shoes require the sole to be comfortable and have a certain sense of fashion.

[0004] In order to overcome the limitations of traditional sole manufacturing processes, injection molding has gradually been introduced into sole production. Injection molding can achieve automated continuous production, greatly improving production efficiency. The molten plastic material is injected into the mold cavity by an injection molding machine, and a sole can be formed in a short time. Compared with traditional processes, injection molding can produce more soles per unit time to meet the needs of large-scale production. Injection molding color separation sole process is an advanced sole manufacturing technology. Through precise injection molding control, materials of different colors are injected into specific areas of the sole mold, thereby forming a sole with clear color division and unique visual effects.

[0005] However, the existing injection molding devices for sole production and processing often inject materials of different colors from above into specific parts, so the formed soles only form a color separation visual effect in the horizontal space. However, the market's pursuit of the beauty of soles is constantly improving, and the color separation visual effect only in the horizontal space is relatively monotonous and difficult to meet the market requirements. In view of this, we propose an injection molding device and method for sole production and processing. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art, meet actual needs, and provide an injection molding device and method for sole production and processing, so as to solve the technical problem that the color separation effect of the current injection molding device for sole production and processing can only be formed in the horizontal space and the visual effect is relatively monotonous.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: an injection molding device and method for producing and processing a sole, comprising a lower mold support structure, a mechanical arm, a lower mold, an upper mold and a discharge assembly;

[0008] A plurality of the lower molds are arranged on a lower mold support structure, and the upper mold is installed on a mechanical arm;

[0009] The lower mold comprises a lower mold shell and a lower mold cavity structure; the lower mold cavity structure is slidably connected in the lower mold shell, and the lower mold cavity structure comprises a sole cavity and an isolation protrusion; the isolation protrusion is arranged in the middle of the sole cavity;

[0010] The upper mold comprises an upper mold shell, an upper mold core structure and a cavity pressing structure; the cavity pressing structure is sleeved on the outer side of the upper mold core structure, and the cavity pressing structure is slidably connected to the upper mold shell, and the cavity pressing structure is adapted to the lower mold shell;

[0011] The upper mold core structure includes a sole mold core and a heat flow tube; the sole mold core and the heel part are connected to two hot runners, and the hot runners are inserted on the cavity pressure structure. Two of the four hot runners are respectively connected to two external auxiliary color rubber feeding devices, and the other two are connected to external main color rubber feeding devices.

[0012] Preferably, the lower die support structure comprises a rotary plate, a lower die mounting groove, a rotary drive, a support column, and a support plate; a plurality of lower die mounting grooves are equidistantly arranged in an annular manner on the rotary plate, and the lower die housing is arranged in the lower die mounting groove, the rotary plate is installed on the driving part of the rotary drive, the support column is installed on the bottom end of the rotary drive, and the support plate is installed on the support column;

[0013] The robotic arm includes a Z-axis driving structure and an X-axis driving structure; the Z-axis driving structure is installed on a supporting plate, the X-axis driving structure is installed on a moving part of the Z-axis driving structure, and the upper mold shell is installed on the moving part of the Z-axis driving structure.

[0014] Preferably, the lower mold cavity structure also includes a guide block, a support plate, and a guide groove; the guide block is installed at the bottom end of the sole cavity, the guide groove is arranged at the top end of the support plate, and the guide groove is slidably connected to the guide block, and the sole cavity is connected to the support plate through the guide block and the guide groove.

[0015] The locking mechanism is a function of the locking cam being a spring, a spring, a spring groove, a locking rod, a locking pin, a locking pin being a locking pin and a locking plate.

[0016] Preferably, the lower mold also includes a locking structure, which includes a pressure plate, a second slider, a second slide groove, a push plate, a locking rod, and a return spring; the second slider is installed at the rear end of the pressure plate, the second slider is slidably connected in the second slide groove, the second slide groove is arranged on the push plate, one side of the push plate is connected to the locking rod, the locking rod is inserted in the first slide groove, the return spring is installed at the bottom end of the pressure plate, and the other end of the return spring is installed on the lower mold shell.

[0017] Preferably, the lower mold also includes a disassembly structure, which includes a connecting block, a screw groove, a fixed block, a screw, and a nut; the connecting block is fixedly connected to the limit pin, the two screw grooves are respectively arranged on both sides of the connecting block, the fixed block is installed at the front end of the lower mold shell, the two screws are respectively rotatably connected to the two sides of the fixed block, the nut is installed on the screw, and the fixed block is connected to the connecting block through the nut, the screw and the screw groove.

[0018] Preferably, the cavity pressing structure includes a pressing frame, a top plate, a pressing cylinder, a connecting plate, a pushing cylinder, and a pressing rod; the top end of the pressing frame is connected to the top plate, the top plate is connected to the output end of the pressing cylinder, the pressing cylinder is connected to the upper mold shell, the two connecting plates are respectively installed on both sides of the pressing frame, the pushing cylinder is installed on the connecting plate, the pressing rod is installed on the output end of the pushing cylinder, and the other end of the pressing rod is inserted into the sole cavity.

[0019] Preferably, the unloading assembly includes a pneumatic clamp, a reciprocating conveying assembly and a unloading chute, the pneumatic clamp is installed on the moving part of the reciprocating conveying assembly, the reciprocating conveying assembly is installed on the unloading chute, the unloading chute is located on one side of the lower mold bracket, and the pneumatic clamp is located above the lower mold.

[0020] Preferably, the reciprocating transport assembly includes a frame, a cylinder, a transmission rod, a slide plate, a limiting slide groove, a mounting block, a guide rear pin, a guide front pin, an ejection spring, a servo motor, a vertical groove, an oblique groove, a step plate, a starting end, an end end, and a corner arc surface; the frame is mounted on the top of the discharge chute, the cylinder is mounted on the top of the frame, the transmission rod is mounted on the output end of the cylinder, the other end of the transmission rod is mounted on the slide plate, the slide plate is slidably connected to the frame, the limiting slide groove is horizontally arranged in the middle of the slide plate, the mounting block is slidably connected in the limiting slide groove, the guide rear pin is mounted on the mounting block, and the hole arranged at the rear end of the guide rear pin is connected to the guide front pin through an ejection spring. The servo motor is installed on the mounting block, and the output end of the servo motor is connected to the pneumatic clamp, the two vertical grooves are arranged on both sides of the front end of the frame, the two oblique grooves are arranged in an X shape at the front end of the frame, the two oblique grooves are connected with the two vertical grooves, the front guide pin and the rear guide pin are slidably connected in the vertical groove and the oblique groove, the four step plates are respectively arranged in the two vertical grooves and the two oblique grooves, the starting end and the end end are respectively located at the connection between the vertical groove and the two oblique grooves, the step plate is arranged from low to high, and the low end and the high end of the step plate are respectively located at the starting end and the end end, and the corner arc surface is arranged at the connection between the end end of the vertical groove and the high end of the step plate.

[0021] The following steps are involved:

[0022] S1: secondary color rubber injection molding;

[0023] The rotary plate is driven to move by the rotary drive, and the rotary plate drives the lower mold to move to the bottom of the upper mold through the lower mold installation groove. The position of the upper mold is adjusted by the Z-axis drive structure and the X-axis drive structure to close the upper mold and connect the heat flow pipe and the external auxiliary color rubber feeding equipment, and inject the auxiliary color rubber of different colors into the sole cavity, isolate it through the isolation protrusion, and wait for a certain time to form the auxiliary color rubber;

[0024] S2: primary color rubber injection molding;

[0025] After the injected auxiliary color rubber is formed, the push cylinder is opened, the push cylinder drives the pressure rod to move, the pressure rod drives the pressure plate to move downward, the pressure plate drives the second slider to move along the second slide groove, thereby driving the push plate to be retracted, the push plate drives the locking rod to move, and the locking rod is retracted to enable the second slider to move, and the downward pressure driving structure connected to the top plate is opened, the downward pressure cylinder drives the top plate to move downward, and the top plate drives the downward pressure frame to press the lower mold cavity structure downward, and the lower mold cavity structure drives the first slider to move downward in the first slide groove through the connecting rod, and the buckle rod moves to the top groove along the side guide groove of the buckle groove. At the same time, the downward pressure driving structure drives the top plate to move a short distance upward, leaving space, and the spring pushes the first slider to reset, and the buckle rod is buckled in the top groove, so that the lower mold cavity structure moves upward and fits with the cavity downward pressure structure, and then connects the heat flow pipe and the external main color rubber feeding equipment, injects the main color rubber into the sole cavity, and waits for a certain time to form the main color rubber;

[0026] S3: unloading operation;

[0027] The lower mold is driven to move to the unloading assembly through the rotary drive, and the cylinder is opened to push the slide plate to move up and down along the frame. When the slide plate moves, it drives the mounting block to move through the limit slide groove. The mounting block moves to the starting end along the vertical groove and the oblique groove through the guide front pin, the guide rear pin and the step plate, and then the mounting block moves from the starting end to the end end to approach the lower mold cavity structure;

[0028] When the mounting block moves from the discharge chute to the lower model cavity structure, the guide rear pin contacts the lower end of the step plate in the vertical groove, so that the guide rear pin is squeezed, the ejection spring contracts, and the guide rear pin moves into the vertical groove. The mounting block drives the pneumatic clamp to press down, and the pneumatic clamp pushes the lower model cavity structure downward. The lower model cavity structure drives the first slider to move downward along the first slide groove, and the buckle rod contacts the eccentric protrusion and is pushed to one side to enter the side guide groove. Then, the guide rear pin enters the oblique groove through the corner arc surface, so that the pneumatic clamp moves upward a short distance, and the pneumatic clamp is driven to rotate by the servo motor to leave space. The spring pushes the first slider to reset, and the buckle rod returns to the bottom of the side guide groove, so that the lower model cavity structure returns to its original position, driving the sole to protrude upward, and the pneumatic clamp clamps the protruding part of the sole. The mounting block continues to move and enters the vertical groove on the other side, so that the sole moves to the top of the discharge chute, and the pneumatic clamp is released to remove the sole.

[0029] S4: Mold changing operation:

[0030] Change the mixed color shape of the sole. When the mixed color shape of the sole needs to be changed, rotate the nut, loosen the nut and then pull the screw, the screw will disengage from the screw groove, separate the fixed block and the connecting block, and the connecting block no longer restricts the movement of the limit pin. The spring pushes the first slider to move upward, so that the limit pin slides in the pin groove, and the first slider pushes the lower model cavity structure to eject the lower mold shell, and then pushes the sole cavity, so that the guide block slides out on the support plate along the guide groove, replaces a different sole cavity, and then resets the lower model cavity structure.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. The present invention separates the lower mold cavity structure by isolating the protrusion, and introduces rubber materials of different colors through the heat flow pipe connected to the external auxiliary color rubber feeding equipment, so as to form the lower part of the sole with horizontal color separation. The cavity downward pressure structure enables the lower mold cavity structure to move downward as a whole, leaving space for injection molding of the upper part of the sole, and introduces the main color rubber material through the heat flow pipe connected to the external main color rubber feeding equipment, so as to form the upper part of the sole with the main color, thereby generating a sole with color separation effect in the vertical direction and optimizing the aesthetics of the sole.

[0033] 2. The present invention sets a cavity snap-in structure, which can protect the sole inside the lower mold shell after the sole is produced. When unloading, the reciprocating conveying component drives the pneumatic clamp to press the cavity snap-in structure. After being pressed, the cavity snap-in structure automatically rebounds to push out the sole, and the pneumatic clamp is used to unload, so that the produced sole will not fall off during transportation.

[0034] 3. The present invention uses a locking structure to ensure that when the lower mold and the upper mold produce the first layer of color separation structure, the pressure generated will not drive the sole cavity to move downward, thereby avoiding the movement of the sole cavity and the formation of a gap between the sole mold core and optimizing the production effect of the first layer of color separation structure.

[0035] 4. The present invention opens the disassembly structure to enable the limit pin to move, and the spring causes the lower mold cavity structure to pop out of the lower mold shell. Then, through the cooperation of the guide block and the guide groove, the sole cavity and the heel cavity are removed from the support plate for replacement, thereby achieving the effect of quickly replacing the sole cavity mold and optimizing the work efficiency of sole production. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of the present invention;

[0037] Figure 2 It is a structural schematic diagram of the lower mold support structure and the mechanical arm of the present invention;

[0038] Figure 3 It is a structural schematic diagram of the lower mold of the present invention;

[0039] Figure 4 A schematic diagram of the internal structure of the first layer of color separation structure generated by the lower mold of the present invention;

[0040] Figure 5 It is a schematic structural diagram of the first sliding block of the present invention;

[0041] Figure 6 It is a structural schematic diagram of the rear part of the locking structure of the present invention;

[0042] Figure 7 It is a structural schematic diagram of the disassembly structure of the present invention;

[0043] Figure 8 A schematic diagram of the internal structure of the second layer color separation structure generated by the lower mold of the present invention;

[0044] Fig. 9 It is a schematic diagram of the structure of the sole cavity and the support plate of the present invention;

[0045] Fig.10 This is a schematic diagram of the structure of the unloading assembly of the present invention when unloading;

[0046] Fig.11 It is a schematic cross-sectional view of the mounting block of the present invention;

[0047] Fig.12 It is a structural schematic diagram of the framework of the present invention.

[0048] Explanation of the numbers in the figure: 1. Lower die support structure; 2. Robotic arm; 3. Lower die; 4. Upper die; 5. Unloading assembly;

[0049] 101, rotary plate; 102, lower die mounting slot; 103, rotary drive; 104, support column; 105, support plate;

[0050] 201, Z-axis driving structure; 202, X-axis driving structure;

[0051] 301, lower mold shell; 302, lower mold cavity structure; 303, cavity buckle structure; 304, locking structure; 305, disassembly structure;

[0052] 3011, pin groove;

[0053] 3021, sole cavity; 3022, isolation protrusion; 3023, guide block; 3024, support plate; 3025, guide groove;

[0054] 3031, connecting rod; 3032, first sliding block; 3033, first sliding groove; 3034, spring; 3035, buckle groove; 3036, buckle rod; 3037, limit rod; 3038, limit pin; 3039, side guide groove; 30310, top groove; 30311, eccentric protrusion;

[0055] 3041, pressing plate; 3042, second sliding block; 3043, second sliding groove; 3044, pushing plate; 3045, locking rod; 3046, return spring;

[0056] 3051, connecting block; 3052, screw groove; 3053, fixing block; 3054, screw; 3055, nut;

[0057] 401, upper mold shell; 402, upper mold core structure; 403, cavity pressing structure;

[0058] 4021, sole mold core; 4022, heat flow pipe;

[0059] 4031, pressing frame; 4032, top plate; 4033, pressing cylinder; 4034, connecting plate; 4035, pushing cylinder; 4036, pressing rod;

[0060] 501, pneumatic gripper; 502, reciprocating handling assembly; 503, discharge chute;

[0061] 5021, frame; 5022, cylinder; 5023, transmission rod; 5024, slide plate; 5025, limit slide groove; 5026, mounting block; 5027, guide rear pin; 5028, guide front pin; 5029, ejection spring; 50210, servo motor; 50211, vertical groove; 50212, oblique groove; 50213, step plate; 50214, starting end; 50215, end end; 50216, corner arc surface. DETAILED DESCRIPTION

[0062] Embodiment 1, as Figures 1 to 12 As shown, the present invention relates to an injection molding device for sole production and processing, comprising a lower mold support structure 1, a mechanical arm 2, a lower mold 3, an upper mold 4 and a discharge assembly 5;

[0063] Twelve lower molds 3 are arranged on the lower mold support structure 1, and the upper mold 4 is installed on the robot arm 2;

[0064] The lower mold 3 includes a lower mold shell 301 and a lower mold cavity structure 302; the lower mold cavity structure 302 is slidably connected in the lower mold shell 301, and the lower mold cavity structure 302 includes a sole cavity 3021 and an isolation protrusion 3022; the isolation protrusion 3022 is arranged in the middle of the sole cavity 3021;

[0065] The upper mold 4 includes an upper mold shell 401, an upper mold core structure 402 and a cavity pressing structure 403; the cavity pressing structure 403 is sleeved on the outer side of the upper mold core structure 402, and the cavity pressing structure 403 is slidably connected to the upper mold shell 401, and the cavity pressing structure 403 is adapted to the lower mold shell 301;

[0066] The upper mold core structure 402 includes a sole mold core 4021 and a heat flow pipe 4022; the sole mold core 4021 is connected to two hot runners at the sole part and the heel part, and the hot runners are inserted on the cavity pressing structure 403, and two of the four hot runners are respectively connected to two external auxiliary color rubber feeding devices, and the other two are connected to external main color rubber feeding devices;

[0067] The present invention separates the lower mold cavity structure 302 by isolating the protrusion 3022, and introduces rubber materials of different colors through the heat flow pipe 4022 connected to the external auxiliary color rubber feeding equipment, so as to form the lower part of the sole with horizontal color separation. The cavity downward pressure structure 403 enables the lower mold cavity structure 302 to move downward as a whole, leaving space for injection molding of the upper part of the sole, and introduces the main color rubber material through the heat flow pipe 4022 connected to the external main color rubber feeding equipment, so as to form the upper part of the sole with the main color, thereby generating a sole with a color separation effect in the vertical direction, thereby optimizing the aesthetics of the sole.

[0068] Embodiment 2, as Figures 3 to 12 As shown, the lower die support structure 1 includes a rotary plate 101, a lower die mounting groove 102, a rotary drive 103, a support column 104, and a support plate 105; twelve lower die mounting grooves 102 are equidistantly arranged in an annular shape on the rotary plate 101, and the lower die housing 301 is arranged in the lower die mounting groove 102, the rotary plate 101 is installed on the driving part of the rotary drive 103, the support column 104 is installed at the bottom end of the rotary drive 103, and the support plate 105 is installed on the support column 104;

[0069] The robot arm 2 includes a Z-axis driving structure 201 and an X-axis driving structure 202; the Z-axis driving structure 201 is mounted on the support plate 105, the X-axis driving structure 202 is mounted on the moving part of the Z-axis driving structure 201, and the upper mold housing 401 is mounted on the moving part of the Z-axis driving structure 201;

[0070] The lower mold 3 also includes a cavity snap-in structure 303, which includes a connecting rod 3031, a first slider 3032, a first slide groove 3033, a spring 3034, a snap groove 3035, a snap rod 3036, a limit rod 3037 and a limit pin 3038; the connecting rod 3031 is installed at the bottom end of the support plate 3024, the bottom end of the connecting rod 3031 is installed on the first slider 3032, the first slider 3032 is slidably connected to the inner side of the first slide groove 3033, the first slide groove 3033 is installed in the lower mold shell 301, the spring 3034 is installed at the bottom end of the slider, and the other end of the spring 3034 is installed in the lower mold shell 301, the snap-in structure 3031 includes a connecting rod 3031, a first slider 3032, a first slide groove 3033, and the first slide groove 3033 is installed in the lower mold shell 301, and the spring 3034 is installed at the bottom end of the slider. The other end of the spring 3034 is installed in the lower mold shell 301. The groove 3035 is arranged at the front end of the first slider 3032, the buckle rod 3036 is slidably connected in the buckle groove 3035, the buckle rod 3036 is fixedly connected to the limit rod 3037, the other end of the limit rod 3037 is rotatably connected to the limit pin 3038, the limit pin 3038 is slidably connected with the pin groove 3011, and the pin groove 3011 is arranged at the front end of the lower mold shell 301, the buckle groove 3035 is composed of a side guide groove 3039, a top groove 30310 and an eccentric protrusion 30311, the two side guide grooves 3039 are connected to the top groove 30310, and the eccentric protrusion 30311 is horizontally offset and arranged at the upper part of the top groove 30310;

[0071] The cavity pressing structure 403 includes a pressing frame 4031, a top plate 4032, a pressing cylinder 4033, a connecting plate 4034, a pushing cylinder 4035, and a pressing rod 4036; the top of the pressing frame 4031 is connected to the top plate 4032, the top plate 4032 is connected to the output end of the pressing cylinder 4033, the pressing cylinder 4033 is connected to the upper mold shell 401, two connecting plates 4034 are respectively installed on both sides of the pressing frame 4031, the pushing cylinder 4035 is installed on the connecting plate 4034, the pressing rod 4036 is installed on the output end of the pushing cylinder 4035, and the other end of the pressing rod 4036 is inserted into the sole cavity 3021;

[0072] The unloading assembly 5 includes a pneumatic clamp 501, a reciprocating conveying assembly 502 and a unloading chute 503. The pneumatic clamp 501 is installed on the moving part of the reciprocating conveying assembly 502. The reciprocating conveying assembly 502 is installed on the unloading chute 503. The unloading chute 503 is located on one side of the bracket of the lower mold 3. The pneumatic clamp 501 is located above the lower mold 3.

[0073] The reciprocating transport assembly 502 includes a frame 5021, a cylinder 5022, a transmission rod 5023, a slide plate 5024, a limit slide 5025, a mounting block 5026, a guide rear pin 5027, a guide front pin 5028, an ejection spring 5029, a servo motor 50210, a vertical slot 50211, an oblique slot 50212, a step plate 50213, a starting end 50214, an end end 50215, and a corner arc surface 50216; the frame 5021 is installed at the top of the discharge chute 503, and the cylinder 50 22 is installed at the top of the frame 5021, the transmission rod 5023 is installed at the output end of the cylinder 5022, the other end of the transmission rod 5023 is installed on the slide plate 5024, the slide plate 5024 is slidably connected to the frame 5021, the limiting slide groove 5025 is horizontally arranged in the middle of the slide plate 5024, the mounting block 5026 is slidably connected in the limiting slide groove 5025, the guide rear pin 5027 is installed on the mounting block 5026, and the hole set at the rear end of the guide rear pin 5027 is connected to the guide front pin 5027 through the ejection spring 5029. 28 connection, the servo motor 50210 is installed on the mounting block 5026, and the output end of the servo motor 50210 is connected to the pneumatic clamp 501, two vertical slots 50211 are arranged on both sides of the front end of the frame 5021, two oblique slots 50212 are arranged in an X shape at the front end of the frame 5021, the two oblique slots 50212 are connected to the two vertical slots 50211, the guide front pin 5028 and the guide rear pin 5027 are slidably connected in the vertical slot 50211 and the oblique slot 50212, and the four steps are connected to each other. The plates 50213 are respectively arranged in the two vertical grooves 50211 and the two oblique grooves 50212, the starting end 50214 and the terminal end 50215 are respectively located at the connection between the vertical groove 50211 and the two oblique grooves 50212, the step plate 50213 is arranged from low to high, and the low end and the high end of the step plate 50213 are respectively located at the starting end 50214 and the terminal end 50215, and the corner arc surface 50216 is arranged at the connection between the terminal end 50215 of the vertical groove 50211 and the high end of the step plate 50213;

[0074] The present invention sets a cavity snap-in structure 303, which can protect the sole inside the lower mold shell 301 after the sole is produced. When unloading, the reciprocating conveying component 502 drives the pneumatic clamp 501 to press the cavity snap-in structure 303, and the cavity snap-in structure 303 automatically rebounds after being pressed to push out the sole. The pneumatic clamp 501 unloads the material, so that the produced sole will not fall off during transportation.

[0075] Embodiment 3, as Figure 6As shown, on the basis of Example 2, the lower mold 3 also includes a locking structure 304, which includes a pressing plate 3041, a second slider 3042, a second slide groove 3043, a push plate 3044, a locking rod 3045, and a reset spring 3046; the second slider 3042 is installed at the rear end of the pressing plate 3041, the second slider 3042 is slidably connected in the second slide groove 3043, the second slide groove 3043 is arranged on the push plate 3044, one side of the push plate 3044 is connected to the locking rod 3045, the locking rod 3045 is inserted in the first slide groove 3033, the reset spring 3046 is installed at the bottom end of the pressing plate 3041, and the other end of the reset spring 3046 is installed on the lower mold shell 301;

[0076] The present invention uses the locking structure 304 to ensure that when the lower mold 3 and the upper mold 4 produce the first layer of color separation structure, the pressure generated will not drive the sole cavity 3021 to move downward, thereby avoiding the movement of the sole cavity 3021 and the generation of a gap with the sole mold core 4021, thereby optimizing the production effect of the first layer of color separation structure.

[0077] Embodiment 4, as Figure 7 As shown, on the basis of Example 2, the lower mold cavity structure 302 further includes a guide block 3023, a support plate 3024, and a guide groove 3025; the guide block 3023 is installed at the bottom end of the sole cavity 3021, the guide groove 3025 is provided at the top end of the support plate 3024, and the guide groove 3025 is slidably connected to the guide block 3023, and the sole cavity 3021 is connected to the support plate 3024 through the guide block 3023 and the guide groove 3025;

[0078] The lower mold 3 also includes a disassembly structure 305, which includes a connecting block 3051, a screw groove 3052, a fixing block 3053, a screw 3054, and a nut 3055; the connecting block 3051 is fixedly connected to the limit pin 3038, two screw grooves 3052 are respectively arranged on both sides of the connecting block 3051, the fixing block 3053 is installed at the front end of the lower mold shell 301, two screws 3054 are respectively rotatably connected to both sides of the fixing block 3053, the nut 3055 is installed on the screw 3054, and the fixing block 3053 is connected to the connecting block 3051 through the nut 3055, the screw 3054 and the screw groove 3052;

[0079] The present invention opens the disassembly structure 305 to enable the limit pin 3038 to move, and the spring 3034 allows the lower model cavity structure 302 to pop out to the outside of the lower mold shell 301. Then, through the cooperation of the guide block 3023 and the guide groove 3025, the sole cavity and the heel cavity are removed from the support plate 3024 for replacement, thereby achieving the effect of quickly replacing the sole cavity 3021 mold and optimizing the work efficiency of sole production.

[0080] Embodiment 5, as Figures 1 to 12As shown, an injection molding method for producing and processing a sole comprises the following steps:

[0081] S1: secondary color rubber injection molding;

[0082] The rotary plate 101 is driven to move by the rotary drive 103, and the rotary plate 101 drives the lower mold 3 to move to the bottom of the upper mold 4 through the lower mold installation groove 102, and the position of the upper mold 4 is adjusted by the Z-axis drive structure 201 and the X-axis drive structure 202, so that the upper mold 4 and the lower mold 3 are molded, and then the heat flow pipe 4022 and the external auxiliary color rubber feeding equipment are connected, and the auxiliary color rubbers of different colors are injected into the sole cavity 3021, and the isolation is carried out by the isolation protrusion 3022, and the auxiliary color rubber is formed after waiting for a certain time;

[0083] S2: primary color rubber injection molding;

[0084] After the injected auxiliary color rubber is formed, the push cylinder 4035 is opened, the push cylinder 4035 drives the pressure rod 4036 to move, the pressure rod 4036 drives the pressure plate 3041 to move downward, the pressure plate 3041 drives the second slider 3042 to move along the second slide groove 3043, thereby driving the push plate 3044 to retract, the push plate 3044 drives the locking rod 3045 to move, the locking rod 3045 is retracted to enable the second slider 3042 to move, and the downward pressing drive structure connected to the top plate 4032 is opened, the downward pressing cylinder 4033 drives the top plate 4032 to move downward, the top plate 4032 drives the downward pressing frame 4031 to press the lower mold cavity structure 302 downward, and the lower mold cavity structure 302 is pressed downward. 02 The first slider 3032 is driven to move downward in the first slide groove 3033 through the connecting rod 3031, and the buckle rod 3036 moves to the top groove 30310 along the side guide groove 3039 of the buckle groove 3035. At the same time, the downward pressure driving structure drives the top plate 4032 to move upward a short distance to leave space. The spring 3034 pushes the first slider 3032 to reset, and the buckle rod 3036 is buckled in the top groove 30310, so that the lower mold cavity structure 302 moves upward and fits with the cavity downward pressure structure 403, and then connects the heat flow pipe 4022 and the external main color rubber feeding equipment, injects the main color rubber into the sole cavity 3021, and waits for a certain period of time to form the main color rubber;

[0085] S3: unloading operation;

[0086] The lower mold 3 is driven to move to the unloading assembly 5 by the rotary drive 103, and the cylinder 5022 is opened to push the slide plate 5024 to move up and down along the frame 5021. When the slide plate 5024 moves, it drives the mounting block 5026 to move through the limiting slide groove 5025. The mounting block 5026 moves to the starting end 50214 along the vertical groove 50211 and the oblique groove 50212 through the guide front pin 5028, the guide rear pin 5027 and the step plate 50213, and then the mounting block 5026 moves along the starting end 50214 toward the terminal end 50215 close to the lower mold cavity structure 302;

[0087] When the mounting block 5026 moves from the discharge chute 503 to the lower mold cavity structure 302, the guide rear pin 5027 contacts the lower end of the step plate 50213 in the vertical groove 50211, so that the guide rear pin 5027 is squeezed, the ejection spring 5029 contracts, and the guide rear pin 5027 moves into the vertical groove 50211. The mounting block 5026 drives the pneumatic clamp 501 to press down, and the pneumatic clamp 501 pushes the lower mold cavity structure 302 to press down. The lower mold cavity structure 302 drives the first slider 3032 to move downward along the first slide groove 3033, and the buckle rod 3036 contacts the eccentric protrusion 30311 and is pushed to one side to enter the side guide groove 3039. Then, the guide rear pin 5027 enters the oblique groove 50212 through the corner arc surface 50216, so that the pneumatic clamp 501 moves upward a short distance, and the pneumatic clamp 501 is driven to rotate by the servo motor 50210 to leave space, and the spring 3034 pushes the first slider 3032 to reset, and the buckle rod 3036 returns to the bottom of the side guide groove 3039, so that the lower mold cavity structure 302 returns to its original position, driving the sole to protrude upward, and the pneumatic clamp 501 clamps the protruding part of the sole, and the mounting block 5026 continues to move and enters the vertical groove 50211 on the other side, so that the sole moves to the top of the unloading groove 503, and the pneumatic clamp 501 is released to remove the sole;

[0088] S4: Mold changing operation:

[0089] Change the mixed color shape of the sole. When the mixed color shape of the sole needs to be changed, by rotating the nut 3055, the nut 3055 is loosened and then the screw 3054 is pulled, the screw 3054 disengages from the screw groove 3052, so that the fixing block 3053 and the connecting block 3051 are separated, and the connecting block 3051 no longer restricts the movement of the limit pin 3038. The spring 3034 pushes the first slider 3032 to move upward, so that the limit pin 3038 slides in the pin groove 3011, and the first slider 3032 pushes the lower model cavity structure 302 to eject the lower mold shell 301, and then pushes the sole cavity 3021, so that the guide block 3023 slides out on the support plate 3024 along the guide groove 3025, replaces a different sole cavity 3021, and then resets the lower model cavity structure 302.

[0090] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An injection molding device for sole production and processing, characterized in that: It comprises a lower die support structure (1), a mechanical arm (2), a lower die (3), an upper die (4) and a discharge assembly (5); A plurality of the lower molds (3) are arranged on a lower mold support structure (1), and the upper mold (4) is installed on a mechanical arm (2); The lower mold (3) comprises a lower mold shell (301) and a lower mold cavity structure (302); the lower mold cavity structure (302) is slidably connected in the lower mold shell (301), and the lower mold cavity structure (302) comprises a sole mold cavity (3021) and an isolation protrusion (3022); the isolation protrusion (3022) is arranged in the middle of the sole mold cavity (3021); The lower mold cavity structure (302) further comprises a guide block (3023), a support plate (3024), and a guide groove (3025); the guide block (3023) is mounted at the bottom end of the sole mold cavity (3021), the guide groove (3025) is arranged at the top end of the support plate (3024), and the guide groove (3025) is slidably connected to the guide block (3023); the sole mold cavity (3021) is connected to the support plate (3024) via the guide block (3023) and the guide groove (3025); The lower mold (3) also includes a cavity snap-in structure (303), and the cavity snap-in structure (303) includes a connecting rod (3031), a first slider (3032), a first slide groove (3033), a spring (3034), a snap groove (3035), a snap rod (3036), a limit rod (3037) and a limit pin (3038); the connecting rod (3031) is mounted on the bottom end of the support plate (3024), the bottom end of the connecting rod (3031) is mounted on the first slider (3032), the first slider (3032) is slidably connected to the inner side of the first slide groove (3033), the first slide groove (3033) is mounted in the lower mold shell (301), the spring (3034) is mounted on the bottom end of the slider, and the other end of the spring (3034) is mounted in the lower mold shell (301). The buckle groove (3035) is arranged at the front end of the first slider (3032), the buckle rod (3036) is slidably connected in the buckle groove (3035), the buckle rod (3036) is fixedly connected to the limit rod (3037), the other end of the limit rod (3037) is rotatably connected to the limit pin (3038), the limit pin (3038) is slidably connected with a pin groove (3011), and the pin groove (3011) is arranged at the front end of the lower mold shell (301), the buckle groove (3035) is composed of a side guide groove (3039), a top groove (30310) and an eccentric protrusion (30311), the two side guide grooves (3039) are connected to the top groove (30310), and the eccentric protrusion (30311) is horizontally offset and arranged at the upper part of the top groove (30310); The lower mold (3) further comprises a locking structure (304), wherein the locking structure (304) comprises a pressing plate (3041), a second slider (3042), a second slide groove (3043), a push plate (3044), a locking rod (3045), and a return spring (3046); the second slider (3042) is mounted at the rear end of the pressing plate (3041), the second slider (3042) is slidably connected in the second slide groove (3043), the second slide groove (3043) is arranged on the push plate (3044), one side of the push plate (3044) is connected to the locking rod (3045), the locking rod (3045) is inserted into the first slide groove (3033), the return spring (3046) is mounted at the bottom end of the pressing plate (3041), and the other end of the return spring (3046) is mounted on the lower mold housing (301); The lower mold (3) further comprises a disassembly structure (305), the disassembly structure (305) comprising a connecting block (3051), a screw groove (3052), a fixing block (3053), a screw (3054), and a nut (3055); the connecting block (3051) is fixedly connected to the limit pin (3038); the two screw grooves (3052) are respectively arranged on both sides of the connecting block (3051); the fixing block (3053) is mounted on the front end of the lower mold shell (301); the two screws (3054) are respectively rotatably connected to both sides of the fixing block (3053); the nut (3055) is mounted on the screw (3054); and the fixing block (3053) is connected to the connecting block (3051) via the nut (3055), the screw (3054), and the screw groove (3052); The upper mold (4) comprises an upper mold shell (401), an upper mold core structure (402) and a cavity pressing structure (403); the cavity pressing structure (403) is sleeved on the outside of the upper mold core structure (402), and the cavity pressing structure (403) is slidably connected to the upper mold shell (401), and the cavity pressing structure (403) is compatible with the lower mold shell (301); The upper mold core structure (402) comprises a sole mold core (4021) and a heat flow pipe (4022); the sole part and the heel part of the sole mold core (4021) are both connected to two hot runners, the hot runners are inserted on the cavity pressing structure (403), two of the four hot runners are respectively connected to two external secondary color rubber feeding devices, and the other two are connected to external primary color rubber feeding devices; The cavity pressing structure (403) comprises a pressing frame (4031), a top plate (4032), a pressing cylinder (4033), a connecting plate (4034), a pushing cylinder (4035), and a pressing rod (4036); the top end of the pressing frame (4031) is connected to the top plate (4032), the top plate (4032) is connected to the output end of the pressing cylinder (4033), the pressing cylinder (4033) is connected to the upper mold shell (401), the two connecting plates (4034) are respectively mounted on both sides of the pressing frame (4031), the pushing cylinder (4035) is mounted on the connecting plate (4034), the pressing rod (4036) is mounted on the output end of the pushing cylinder (4035), and the other end of the pressing rod (4036) is inserted into the sole cavity (3021).

2. The injection molding device for sole production and processing according to claim 1, characterized in that: The lower die support structure (1) comprises a rotary plate (101), a lower die mounting groove (102), a rotary drive (103), a support column (104), and a support plate (105); a plurality of the lower die mounting grooves (102) are equidistantly arranged in an annular shape on the rotary plate (101), and a lower die housing (301) is arranged in the lower die mounting groove (102); the rotary plate (101) is installed on a driving portion of the rotary drive (103); the support column (104) is installed at the bottom end of the rotary drive (103); and the support plate (105) is installed on the support column (104); The robot arm (2) comprises a Z-axis drive structure (201) and an X-axis drive structure (202); the Z-axis drive structure (201) is mounted on a support plate (105), the X-axis drive structure (202) is mounted on a moving part of the Z-axis drive structure (201), and the upper mold shell (401) is mounted on the moving part of the Z-axis drive structure (201).

3. The injection molding device for sole production and processing according to claim 2, characterized in that: The unloading assembly (5) comprises a pneumatic clamp (501), a reciprocating conveying assembly (502) and a unloading trough (503), wherein the pneumatic clamp (501) is mounted on a moving part of the reciprocating conveying assembly (502), the reciprocating conveying assembly (502) is mounted on the unloading trough (503), the unloading trough (503) is located on one side of a lower mold (3) bracket, and the pneumatic clamp (501) is located above the lower mold (3).

4. The injection molding device for sole production and processing according to claim 3 is characterized in that: The reciprocating transport assembly (502) comprises a frame (5021), a cylinder (5022), a transmission rod (5023), a slide plate (5024), a limiting slide groove (5025), a mounting block (5026), a guide rear pin (5027), a guide front pin (5028), an ejection spring (5029), a servo motor (50210), a vertical groove (50211), an oblique groove (50212), a step plate (50213), a starting end (50214), an end end (50215), and a corner arc surface (50216); the frame (5021) is mounted on the top of the discharge chute (503); the cylinder (5022) is installed at the top end of the frame (5021), the transmission rod (5023) is installed at the output end of the cylinder (5022), the other end of the transmission rod (5023) is installed on the slide plate (5024), the slide plate (5024) is slidably connected to the frame (5021), the limiting slide groove (5025) is horizontally arranged in the middle of the slide plate (5024), the mounting block (5026) is slidably connected in the limiting slide groove (5025), the guide rear pin (5027) is installed on the mounting block (5026), and the hole set at the rear end of the guide rear pin (5027) is connected to the guide rear pin (5027) through the ejection spring (5029). The servo motor (50210) is mounted on the mounting block (5026), and the output end of the servo motor (50210) is connected to the pneumatic clamp (501), the two vertical slots (50211) are arranged on both sides of the front end of the frame (5021), the two oblique slots (50212) are arranged in an X shape at the front end of the frame (5021), the two oblique slots (50212) and the two vertical slots (50211) are connected, the guide front pin (5028) and the guide rear pin (5027) are slidably connected in the vertical slot (50211) and the oblique slot (50212), The four step plates (50213) are respectively arranged in two vertical grooves (50211) and two oblique grooves (50212); the starting end (50214) and the terminal end (50215) are respectively located at the connection between the vertical groove (50211) and the two oblique grooves (50212); the step plates (50213) are arranged from low to high, and the low end and the high end of the step plates (50213) are respectively located at the starting end (50214) and the terminal end (50215); the corner arc surface (50216) is arranged at the connection between the terminal end (50215) of the vertical groove (50211) and the high end of the step plate (50213).

5. The injection molding method of the injection molding device for sole production and processing according to claim 4, characterized in that: The following steps are involved: S1: secondary color rubber injection molding; The rotary plate (101) is driven to move by the rotary drive (103), and the rotary plate (101) drives the lower mold (3) to move to the bottom of the upper mold (4) through the lower mold installation groove (102). The position of the upper mold (4) is adjusted by the Z-axis drive structure (201) and the X-axis drive structure (202), so that the upper mold (4) and the lower mold (3) are closed, and then the heat flow pipe (4022) and the external auxiliary color rubber feeding equipment are connected, and the auxiliary color rubbers of different colors are injected into the sole cavity (3021), and the isolation is performed by the isolation protrusion (3022), and a certain period of time is waited to allow the auxiliary color rubber to be formed; S2: primary color rubber injection molding; After the injected auxiliary color rubber is formed, the pushing cylinder (4035) is opened, the pushing cylinder (4035) drives the pressing rod (4036) to move, the pressing rod (4036) drives the pressing plate (3041) to move downward, the pressing plate (3041) drives the second slider (3042) to move along the second slide groove (3043), thereby driving the push plate (3044) to retract, the push plate (3044) drives the locking rod (3045) to move, the locking rod (3045) is retracted to enable the second slider (3042) to move, and the downward pressing driving structure connected to the top plate (4032) is opened, the downward pressing cylinder (4033) drives the top plate (4032) to move downward, the top plate (4032) drives the downward pressing frame (4031) to press the lower mold cavity structure (302) downward, and the lower mold cavity structure The structure (302) drives the first slider (3032) to move downward in the first slide groove (3033) through the connecting rod (3031), the buckle rod (3036) moves along the side guide groove (3039) of the buckle groove (3035) to the top groove (30310), and at the same time, the downward pressure driving structure drives the top plate (4032) to move upward a short distance to leave space, the spring (3034) pushes the first slider (3032) to reset, the buckle rod (3036) is buckled in the top groove (30310), so that the lower mold cavity structure (302) moves upward to fit with the cavity downward pressure structure (403), and then connects the heat flow pipe (4022) and the external main color rubber feeding equipment, injects the main color rubber into the sole cavity (3021), and waits for a certain period of time to form the main color rubber; S3: unloading operation; The lower mold (3) is driven to move to the unloading assembly (5) by the rotary drive (103), the cylinder (5022) is opened to push the slide plate (5024) to move up and down along the frame (5021), the slide plate (5024) drives the mounting block (5026) to move through the limiting slide groove (5025) when moving, the mounting block (5026) moves to the starting end (50214) along the vertical groove (50211) and the oblique groove (50212) through the guide front pin (5028), the guide rear pin (5027) and the step plate (50213), and then the mounting block (5026) moves along the starting end (50214) toward the end end (50215) to approach the lower mold cavity structure (302); During the process of the installation block (5026) moving from the discharge chute (503) to the lower mold cavity structure (302), the guide rear pin (5027) contacts the lower end of the step plate (50213) in the vertical groove (50211), so that the guide rear pin (5027) is squeezed, the ejection spring (5029) contracts, the guide rear pin (5027) moves into the vertical groove (50211), the installation block (5026) drives the pneumatic clamp (501) to press downward, the pneumatic clamp (501) pushes the lower mold cavity structure (302) downward, the lower mold cavity structure (302) drives the first slider (3032) to move downward along the first slide groove (3033), the buckle rod (3036) contacts the eccentric protrusion (30311), and is pushed to one side into the side guide groove (30311). 039), then the guide rear pin (5027) enters the oblique groove (50212) through the corner arc surface (50216), so that the pneumatic clamp (501) moves upward a short distance, and the pneumatic clamp (501) is driven to rotate by the servo motor (50210), leaving space, the spring (3034) pushes the first slider (3032) to reset, the buckle rod (3036) returns to the bottom of the side guide groove (3039), so that the lower mold cavity structure (302) returns to its original position, driving the sole to protrude upward, the pneumatic clamp (501) clamps the protruding part of the sole, the mounting block (5026) continues to move, enters the vertical groove (50211) on the other side, so that the sole moves to the top of the discharge groove (503), and the pneumatic clamp (501) is released to remove the sole; S4: Mold changing operation: When the shoe sole is to be replaced with a mixed color shape, the nut (3055) is rotated, the nut (3055) is loosened, and then the screw (3054) is pulled, the screw (3054) is disengaged from the screw groove (3052), so that the fixing block (3053) and the connecting block (3051) are separated, the connecting block (3051) no longer restricts the movement of the limit pin (3038), and the spring (3034) pushes the first slider (3054) to move. The first slide block (3032) is moved upward to allow the limit pin (3038) to slide in the pin groove (3011), and the first slide block (3032) pushes the lower mold cavity structure (302) to eject the lower mold shell (301), and then pushes the sole mold cavity (3021) to allow the guide block (3023) to slide out on the support plate (3024) along the guide groove (3025), and a different sole mold cavity (3021) is replaced, and then the lower mold cavity structure (302) is reset.

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