An inner injection port device and method for shoe sole production and processing

Abstract

This application provides an internal injection molding device and method for shoe sole production, relating to the field of shoe sole injection molding. It includes a rotating seat, a rotating mechanism mounted on the rotating seat, a first shoe sole mold mounted on the rotating seat, a second shoe sole mold slidably mounted on the rotating seat, and a sliding block mounted on the outside of the rotating seat. To address the problems of cumbersome operation and low efficiency in mass production of existing internal injection molding devices for shoe sole production, this application implements a synchronous adjustment mechanism. This mechanism automates mold adjustment and demolding of the molten material, reducing labor costs and improving efficiency. Furthermore, the synchronous adjustment mechanism solves the problem of poor molding quality caused by mold wear in existing technologies. Finally, the synchronous adjustment mechanism also addresses the problem of slow natural cooling after demolding, which can easily lead to shoe sole deformation.

Description

Technical Field

[0001] This invention relates to the field of shoe sole injection molding, and more specifically, to an inner injection port device and method for shoe sole production and processing. Background Technology

[0002] During the production and processing of shoe soles, the internal injection port device is used as a channel to inject molten plastic into the mold cavity of the shoe sole. The molten material injected into the mold cavity solidifies and takes shape after being held under pressure and cooled. The final solidified plastic becomes the shoe sole.

[0003] The existing internal injection molding device for shoe sole production consists of an injection mechanism, an adjustment mechanism, and a rotation mechanism. The adjustment mechanism includes a sole clamping mold, a shoe upper extrusion mold, and a drive component. In use, the drive component drives the shoe upper extrusion mold to move downwards and engage with the sole clamping mold. Molten plastic is then injected into the shoe upper extrusion mold by the injection mechanism. The molten plastic eventually enters the cavity formed by the sole clamping mold and the shoe upper extrusion mold and is formed. When the formed sole needs to be demolded, the two sole clamping molds need to be manually rotated and unfolded. At this time, the formed sole is separated from the sole clamping mold. Then, the shoe upper extrusion mold is manually moved upwards and reset, so that the sole connected to the shoe upper can be processed for the second step. This process is cumbersome, time-consuming, labor-intensive, and has low efficiency.

[0004] Therefore, we have made improvements to this by proposing an internal injection molding device and method for shoe sole production and processing. Summary of the Invention

[0005] The purpose of this invention is to address the problem that existing internal injection molding devices for shoe sole production are cumbersome to operate and have low efficiency during mass production.

[0006] To achieve the above-mentioned objectives, the present invention provides an inner injection port device and method for shoe sole production and processing, in order to solve the above-mentioned problems.

[0007] The application is as follows:

[0008] It includes a rotating base, a rotating mechanism disposed on the rotating base, a first shoe sole mold disposed on the rotating base, a second shoe sole mold slidably disposed on the rotating base, a sliding block disposed on the outside of the rotating base, a shoe body mold disposed on the sliding block, injection holes disposed on the sliding block and the shoe body mold respectively, and a U-shaped frame disposed on the rotating base and a synchronous adjustment mechanism disposed on the U-shaped frame.

[0009] The synchronous adjustment mechanism includes a sliding column slidably mounted on the U-shaped frame, a fixed block mounted on the sliding column, a spring one mounted on the outside of the sliding column, an obtuse-angled groove mounted on the sliding column, a cylinder mounted on the U-shaped frame, a pusher column mounted on the output end of the cylinder, a mounting block mounted on the shoe sole mold two, a connecting block mounted on the mounting block, a bidirectional lead screw rotatably mounted on the U-shaped frame, and a motor mounted on the U-shaped frame.

[0010] As a preferred technical solution of this application, the two ends of the spring are respectively disposed on the corresponding surfaces of the fixed block and the U-shaped frame, the obtuse angle groove and the jacking column are adapted to each other, the mounting block is slidably disposed on the rotating seat, the connecting block is threadedly connected to the bidirectional lead screw, and the bidirectional lead screw is disposed at the output end of the motor.

[0011] As a preferred technical solution of this application, a ball bearing is rotatably provided on the jacking column, and the ball bearing is adapted to the obtuse angle groove.

[0012] As a preferred technical solution of this application, the mounting block is provided with a strip groove, the connecting block is slidably disposed on the strip groove, the mounting block is provided with a transmission block, the contact ends of the transmission block and the fixing block are both wedge-shaped, the transmission block is provided with a positioning groove, and the mounting block is provided with a second spring.

[0013] As a preferred technical solution of this application, the positioning groove and the fixing block are adapted to each other.

[0014] As a preferred technical solution of this application, the mounting block is provided with a guide post, the guide post is slidably mounted on the U-shaped frame, and a limit ring is provided on the guide post.

[0015] As a preferred technical solution of this application, the U-shaped frame is threadedly connected to a threaded post, a driving block is rotatably disposed on the threaded post, the driving block is slidably disposed on the guide post, the two ends of the second spring are respectively disposed on the corresponding surfaces of the driving block and the mounting block, and a knob is disposed on the threaded post.

[0016] The method for internal injection molding in shoe sole manufacturing is as follows:

[0017] Step S1: The shoe body is installed on the shoe body mold. The cylinder is started. The cylinder output drives the push column and the ball to slide synchronously and squeeze the obtuse angle groove. At this time, the obtuse angle groove on the sliding column is squeezed and moves downward. The fixed block squeezes the transmission block. The transmission block is squeezed and slides. At this time, the strip groove on the transmission block slides synchronously. The connecting block does not move. When the fixed block and the positioning groove are matched, the elasticity of the second spring drives the fixed block and the positioning groove to engage. At this time, the first shoe sole mold, the second shoe sole mold and the shoe body mold are matched and form a cavity. The molten material is injected into the injection hole on the sliding block through the existing injection mechanism. The molten material is finally discharged from the injection hole at the bottom of the shoe body mold into the cavity. At this time, the molten material solidifies and sticks to the shoe body of the shoe body mold.

[0018] Step S2: Start the motor. The motor drives the bidirectional lead screw to rotate, which in turn drives the connecting block to move. The connecting block presses against the strip groove and drives the two shoe sole molds to move in opposite directions. At this time, the shoe sole mold 2 is disengaged from the shoe body mold. When the fixing block and the positioning groove are disengaged, the spring 1 is in a stretched and stored state. When the elasticity of the spring 1 drives the cured shoe sole to reset synchronously with the shoe sole mold 2, the shoe sole mold 2 slides up and down and slowly resets during the reset process. Thus, the cured shoe sole moves synchronously, realizing the demolding of the cured shoe sole. Through the process of sliding up and down, the cured shoe sole is demolded and cooled.

[0019] In step S3, when the shoe sole mold is demolded, the rotating mechanism drives the next injection hole to align with the output end of the existing injection mechanism, thus realizing automated continuous production.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] In the scheme of this application:

[0022] 1. In order to solve the problem that the operation of the inner injection molding device in the production and processing of shoe soles is cumbersome and the work efficiency is low in the process of mass production, this application sets up a synchronous adjustment mechanism, which realizes the automatic adjustment of the mold and the demolding of the molten material, thereby reducing labor costs and improving work efficiency.

[0023] 2. By setting a synchronous adjustment mechanism, the two shoe sole molds 2 slide linearly and cooperate with the shoe sole mold 1, reducing the wear between the shoe sole mold 1 and the shoe sole mold 2, improving the quality of molten material molding, and solving the problem of poor molding quality caused by mold wear in the prior art;

[0024] 3. By setting up a synchronous adjustment mechanism, heat dissipation is achieved on the cured sole after demolding, so that the cured sole cools evenly and reduces deformation caused by temperature differences. This solves the problem in the prior art where the sole cools slowly after demolding, which easily leads to sole deformation. Attached Figure Description

[0025] Figure 1 A schematic diagram of the internal injection port device for shoe sole production and processing provided in this application;

[0026] Figure 2 A schematic diagram of the overall structure of the U-shaped frame of the inner injection port device for shoe sole production and processing provided in this application;

[0027] Figure 3 A partial cross-sectional view of the U-shaped frame of the inner injection port device for shoe sole production and processing provided in this application;

[0028] Figure 4 The inner injection molding device for shoe sole manufacturing provided in this application Figure 3 Enlarged structural diagram of area A in the middle;

[0029] Figure 5 A partial cross-sectional view of the sliding column of the inner injection port device for shoe sole production and processing provided in this application;

[0030] Figure 6 A partial cross-sectional view of the transmission block of the inner injection port device for shoe sole production and processing provided in this application.

[0031] The image shows:

[0032] 1. Rotating seat; 101. Rotating mechanism; 102. Shoe sole mold one; 103. Shoe sole mold two; 104. Sliding block; 105. Shoe body mold; 106. Injection hole; 107. U-shaped frame;

[0033] 2. Synchronous adjustment mechanism; 201. Sliding column; 202. Fixed block; 203. Spring 1; 204. Obtuse angle groove; 205. Cylinder; 206. Pushing column; 207. Mounting block; 208. Connecting block; 209. Double-acting lead screw; 210. Motor; 211. Ball bearing; 212. Strip groove; 213. Transmission block; 214. Positioning groove; 215. Spring 2; 216. Guide column; 217. Limiting ring; 218. Threaded column; 219. Drive block; 220. Knob. Detailed Implementation

[0034] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0035] As described in the background section, the internal injection molding device for shoe sole production is cumbersome to operate and has low efficiency during mass production.

[0036] To solve this technical problem, the present invention provides an inner injection port device and method for shoe sole production and processing, which is applied to shoe sole injection molding.

[0037] For details, please refer to Figure 1 - Figure 6 As shown, the inner injection molding device for shoe sole production specifically includes: a rotating seat 1, a rotating mechanism 101 mounted on the rotating seat 1, a first shoe sole mold 102 mounted on the rotating seat 1, a second shoe sole mold 103 slidably mounted on the rotating seat 1, a sliding block 104 mounted on the outside of the rotating seat 1, a shoe body mold 105 mounted on the sliding block 104, injection holes 106 respectively mounted on the sliding block 104 and the shoe body mold 105, a U-shaped frame 107 mounted on the rotating seat 1, and a synchronous adjustment mechanism 2 mounted on the U-shaped frame 107. In the prior art, such as... Figure 1 As shown, the rotating mechanism 101 drives multiple U-shaped frames 107 and the synchronous adjustment mechanism 2 to rotate and position, aligning the injection hole 106 with the existing injection mechanism. Molten material is then injected into the injection hole 106 on the sliding block 104 via the existing injection mechanism. The sliding block 104 and the injection hole 106 on the shoe body mold 105 are connected. Figure 6 As shown, when the sole mold 102, sole mold 2 103, and upper mold 105 are adapted to form a cavity, the shape of the cavity is the shape of the existing sole. The molten material is finally discharged into the cavity from the injection hole 106 at the bottom of the upper mold 105. The high pressure generated by the existing injection mechanism causes the molten material to form the shape of the cavity and solidify. The existing upper is installed on the upper mold 105, and the solidified molten material is adhered to the existing upper, so that the solidified sole and upper are fixed together.

[0038] The synchronous adjustment mechanism 2 includes a sliding column 201 slidably mounted on the U-shaped frame 107, a fixing block 202 mounted on the sliding column 201, a spring 203 mounted on the outside of the sliding column 201, an obtuse-angled groove 204 mounted on the sliding column 201, a cylinder 205 mounted on the U-shaped frame 107, a pusher column 206 mounted on the output end of the cylinder 205, a mounting block 207 mounted on the shoe sole mold 103, a connecting block 208 mounted on the mounting block 207, a bidirectional lead screw 209 rotatably mounted on the U-shaped frame 107, and a motor 210 mounted on the U-shaped frame 107.

[0039] The present invention provides an inner injection molding device and method for shoe sole production and processing. In order to solve the problem that the operation of the inner injection molding device for shoe sole production and processing in the prior art is relatively cumbersome and the work efficiency is low in the process of mass production, this application realizes the automatic adjustment of the mold and demolding of the molten material by setting a synchronous adjustment mechanism 2, thereby reducing labor costs and improving work efficiency.

[0040] By using the synchronous adjustment mechanism 2, the two shoe sole molds 103 are driven to slide linearly and cooperate with the shoe sole mold 102, thereby reducing the wear between the shoe sole mold 102 and the shoe sole mold 103, improving the quality of molten material forming, and solving the problem of poor forming quality caused by mold wear in the prior art.

[0041] By using the synchronous adjustment mechanism 2, heat dissipation is achieved on the cured sole after demolding, ensuring uniform cooling of the cured sole and reducing deformation caused by temperature differences. This solves the problem in the prior art where the sole's slow natural cooling after demolding easily leads to deformation.

[0042] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0043] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0044] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0045] Example 1, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, an inner injection molding device for shoe sole production and processing has two ends of spring 203 respectively set on the corresponding surfaces of fixed block 202 and U-shaped frame 107, obtuse angle groove 204 and top moving column 206 are adapted to each other, mounting block 207 is slidably set on rotating seat 1, connecting block 208 is threadedly connected to bidirectional lead screw 209, and bidirectional lead screw 209 is set at the output end of motor 210;

[0046] During use, the shoe body is mounted on the shoe body mold 105, such as Figure 4 As shown, when cylinder 205 is activated, its output drives the pusher column 206 to slide and press the obtuse-angled groove 204. At this time, the obtuse-angled groove 204 on the sliding column 201 is pressed and displaced downwards. Simultaneously, the fixed block 202, sliding block 104, and shoe body mold 105 on the sliding column 201 move downwards. At this time, the sole mold 102, sole mold 203, and shoe body mold 105 fit together and form a cavity, as shown... Figure 6 As shown, the molten material is injected into the injection hole 106 on the sliding block 104 through the existing injection mechanism. The molten material is finally discharged into the cavity from the injection hole 106 at the bottom of the shoe body mold 105. At this time, the molten material solidifies and adheres to the shoe body of the shoe body mold 105. The motor 210 is started, and the output end of the motor 210 drives the bidirectional lead screw 209 to rotate. The bidirectional lead screw 209 drives the connecting block 208 and the shoe sole mold 103 to slide synchronously. Figure 5 As shown, the two shoe sole molds 103 move synchronously in opposite directions. At this time, the shoe sole mold 103 disengages from the shoe body mold 105, the output end of the cylinder 205 resets, and the sliding column 201, the fixed block 202, the sliding block 104 and the shoe body mold 105 are synchronously reset by the elasticity of the spring, thereby automatically demolding the solidified molten material. This method realizes the automatic adjustment of the mold and demolding of the molten material, thus reducing labor costs and improving work efficiency. In the existing technology, the two shoe sole molds 103 are adapted by rotating and fitting with the shoe sole mold 102. This method will cause frequent wear and gaps on the contact surface of the shoe sole mold 102 and the shoe sole mold 103, resulting in poor quality of molten material forming. By driving the two shoe sole molds 103 to slide towards each other and cooperate with the shoe sole mold 102, wear is reduced and the quality of molten material forming is improved.

[0047] Furthermore, a ball bearing 211 is rotatably mounted on the push column 206. The ball bearing 211 is adapted to the obtuse angle groove 204, and the ball bearing 211 reduces the friction on the obtuse angle groove 204.

[0048] The synchronous adjustment mechanism 2 enables automated mold adjustment and demolding of the molten material, reducing labor costs and improving work efficiency. By driving the two shoe sole molds 103 to slide linearly and cooperate with the shoe sole mold 102, wear between the shoe sole mold 102 and the shoe sole mold 103 is reduced, thus improving the quality of molten material molding.

[0049] Example 2 further optimizes the inner injection molding device for shoe sole production and processing provided in Example 1. Specifically, as follows: Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the mounting block 207 is provided with a strip groove 212, the connecting block 208 is slidably disposed on the strip groove 212, the mounting block 207 is provided with a transmission block 213, the contact ends of the transmission block 213 and the fixing block 202 are both wedge-shaped, the transmission block 213 is provided with a positioning groove 214, and the mounting block 207 is provided with a spring 215.

[0050] When the shoe body mold 105 and the fixing block 202 move downwards synchronously, as Figure 3 As shown, the fixed block 202 presses against the transmission block 213, causing the transmission block 213 to slide. Simultaneously, the strip groove 212 on the transmission block 213 slides, and the connecting block 208 remains stationary. When the fixed block 202 and the positioning groove 214 are matched, the elasticity of the spring 215 causes the fixed block 202 and the positioning groove 214 to engage. Figure 6 As shown, when the molten material is fixed, the motor 210 drives the bidirectional lead screw 209 to rotate, the bidirectional lead screw 209 drives the connecting block 208 to move, the connecting block 208 presses the strip groove 212 and drives the two shoe sole molds 103 to move in opposite directions. When the fixing block 202 and the positioning groove 214 disengage, the spring 203 is in a stretched and stored state. When the elasticity of the spring 203 drives the cured shoe sole and the shoe sole mold 103 to reset synchronously, the shoe sole mold 103 slides up and down and resets slowly during the reset process, and then the cured shoe sole moves synchronously. Through the process of sliding up and down, the cured shoe sole is cooled after demolding, so that the cured shoe sole is cooled evenly and the deformation caused by temperature difference is reduced.

[0051] Furthermore, the positioning groove 214 and the fixing block 202 are adapted to each other, such as... Figure 6 As shown, when the fixing block 202 and the positioning groove 214 are engaged, the positioning groove 214 is used to limit the fixing block 202.

[0052] Furthermore, the mounting block 207 is provided with a guide post 216, which is slidably mounted on the U-shaped frame 107. A limit ring 217 is provided on the guide post 216 to prevent the guide post 216 from detaching from the U-shaped frame 107. The guide post 216 is used to guide the shoe sole mold 2 103.

[0053] Furthermore, a threaded post 218 is threadedly connected to the U-shaped frame 107, a drive block 219 is rotatably mounted on the threaded post 218, the drive block 219 is slidably mounted on the guide post 216, the two ends of the second spring 215 are respectively mounted on the corresponding surfaces of the drive block 219 and the mounting block 207, and a knob 220 is mounted on the threaded post 218.

[0054] By rotating the knob 220, the knob 220 drives the threaded column 218 to rotate synchronously. At this time, the threaded column 218 pushes the drive block 219, and the drive block 219 slides along the guide column 216 and squeezes the second spring 215, causing the second spring 215 to deform. According to production needs, the elasticity of the second spring 215 can be adjusted by adjusting the position of the drive block 219.

[0055] The synchronous adjustment mechanism 2 enables heat dissipation of the cured shoe sole after demolding, ensuring uniform cooling of the cured shoe sole and reducing deformation caused by temperature differences.

[0056] Example 3: A method for internal injection molding in shoe sole manufacturing, comprising the following steps:

[0057] Step S1: The shoe body is installed on the shoe body mold 105. The cylinder 205 is activated, and its output drives the push pin 206 and ball bearing 211 to slide synchronously and press against the obtuse angle groove 204. At this time, the obtuse angle groove 204 on the sliding pin 201 is pressed and displaced downwards. The fixed block 202 presses against the transmission block 213, causing the transmission block 213 to slide. Simultaneously, the strip groove 212 on the transmission block 213 slides, while the connecting block 208 remains stationary. When the fixed block 20... When the 202 and the positioning groove 214 are matched, the elasticity of the second spring 215 drives the fixing block 202 and the positioning groove 214 to engage. At this time, the first shoe sole mold 102, the second shoe sole mold 103 and the shoe body mold 105 are matched and form a cavity. The molten material is injected into the injection hole 106 on the sliding block 104 through the existing injection mechanism. The molten material is finally discharged into the cavity from the injection hole 106 at the bottom of the shoe body mold 105. At this time, the molten material solidifies and sticks to the shoe body of the shoe body mold 105.

[0058] Step S2: Start motor 210. Motor 210 drives bidirectional lead screw 209 to rotate. Bidirectional lead screw 209 drives connecting block 208 to move. Connecting block 208 presses strip groove 212 and drives two shoe sole molds 103 to move in opposite directions. At this time, shoe sole mold 103 disengages from shoe body mold 105. When fixing block 202 and positioning groove 214 disengage, spring 203 is in a stretched and stored state. When the elasticity of spring 203 drives the cured shoe sole to reset synchronously with shoe sole mold 103, shoe sole mold 103 slides up and down and resets slowly during the reset process. Thus, the cured shoe sole moves synchronously, realizing the demolding of the cured shoe sole. Through the process of sliding up and down, the cured shoe sole is demolded and cooled.

[0059] In step S3, when the shoe sole mold is demolded, the rotating mechanism 101 drives the next injection hole 106 to align with the output end of the existing injection mechanism, thereby realizing automated continuous production.

[0060] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0061] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. An inner injection molding device for shoe sole manufacturing, comprising a rotating base, a rotating mechanism disposed on the rotating base, a first shoe sole mold disposed on the rotating base, a second shoe sole mold slidably disposed on the rotating base, a sliding block disposed on the outer side of the rotating base, a shoe upper mold disposed on the sliding block, and injection holes respectively disposed on the sliding block and the shoe upper mold, characterized in that, Includes a U-shaped frame mounted on the rotating base, and a synchronous adjustment mechanism mounted on the U-shaped frame; The synchronous adjustment mechanism includes a sliding column slidably mounted on the U-shaped frame, a fixed block mounted on the sliding column, a spring one mounted on the outside of the sliding column, an obtuse-angled groove mounted on the sliding column, a cylinder mounted on the U-shaped frame, a pusher column mounted on the output end of the cylinder, a mounting block mounted on the shoe sole mold two, a connecting block mounted on the mounting block, a bidirectional lead screw rotatably mounted on the U-shaped frame, and a motor mounted on the U-shaped frame; The mounting block is provided with a strip groove, the connecting block is slidably disposed on the strip groove, the mounting block is provided with a transmission block, the contact ends of the transmission block and the fixed block are both wedge-shaped, the transmission block is provided with a positioning groove, and the mounting block is provided with a second spring. The positioning groove and the fixing block are adapted to each other; The mounting block is provided with a guide post, which is slidably mounted on the U-shaped frame, and a limit ring is provided on the guide post; The connecting block is threaded onto the bidirectional lead screw; When the cylinder is activated, the output end of the cylinder drives the push column to slide and press the obtuse angle groove. At this time, the obtuse angle groove on the sliding column is pressed and moves downward. At this time, the fixed block, sliding block and shoe body mold on the sliding column move downward synchronously. The U-shaped frame is threaded with a threaded post, and a drive block is rotatably mounted on the threaded post. The drive block is slidably mounted on the guide post. The two ends of the second spring are respectively mounted on the corresponding surfaces of the drive block and the mounting block. A knob is mounted on the threaded post.

2. The inner injection molding device for shoe sole production and processing according to claim 1, characterized in that, The two ends of the spring are respectively disposed on the corresponding surfaces of the fixed block and the U-shaped frame. The obtuse angle groove and the jacking column are adapted to each other. The mounting block is slidably disposed on the rotating seat. The bidirectional lead screw is disposed at the output end of the motor.

3. The inner injection molding device for shoe sole production and processing according to claim 2, characterized in that, The jacking column is rotatably equipped with ball bearings, which are adapted to the obtuse-angled groove.

4. A method for internal injection molding of shoe soles, using the internal injection molding device for shoe sole production as described in claim 3, characterized in that, Includes the following steps: Step S1: The shoe body is installed on the shoe body mold. The cylinder is started. The cylinder output drives the push column and the ball to slide synchronously and squeeze the obtuse angle groove. At this time, the obtuse angle groove on the sliding column is squeezed and moves downward. The fixed block squeezes the transmission block. The transmission block is squeezed and slides. At this time, the strip groove on the transmission block slides synchronously. The connecting block does not move. When the fixed block and the positioning groove are matched, the elasticity of the second spring drives the fixed block and the positioning groove to engage. At this time, the first shoe sole mold, the second shoe sole mold and the shoe body mold are matched and form a cavity. The molten material is injected into the injection hole on the sliding block through the injection mechanism. The molten material is finally discharged from the injection hole at the bottom of the shoe body mold into the cavity. At this time, the molten material solidifies and sticks to the shoe body of the shoe body mold. Step S2: Start the motor. The motor drives the bidirectional lead screw to rotate. The bidirectional lead screw drives the connecting block to move. The connecting block squeezes the strip groove and drives the two shoe sole molds to move in opposite directions. At this time, the shoe sole mold 2 is disengaged from the shoe body mold. When the fixing block and the positioning groove are disengaged, the spring 1 is in a stretched and stored state. When the elasticity of the spring 1 drives the cured shoe sole and the shoe body mold to reset synchronously. In step S3, when the shoe sole mold is demolded, the rotating mechanism drives the next injection hole to align with the output end of the injection mechanism, thus realizing automated continuous production.

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