An intelligent anti-pinch injection sole upper injection molding machine

Abstract

The present invention relates to the field of injection molding equipment, and in particular to an intelligent anti-pinch injection sole upper injection molding machine, the structure of which includes: a regulator includes a first connection part, a deceleration rod and a second connection part, the first connection part and the deceleration rod are nested and fixed, the deceleration rod and the second connection part are movably connected, the opening of the second connection part is sealed by a ring ear, the inner cavity of the first connection part is provided with a voltage regulator, the voltage regulator controls the circulation speed of the airflow in the deceleration rod and the inner cavity of the second connection part, the device is driven by a motor to drive the reducer and the inner cylinder, the moving speed and the moving torque can be controlled by controlling the voltage and current of the motor, and multiple displacement strokes are set by electronic control, the first stage quickly closes the film and maintains a safe distance, and quickly stops after being blocked, the second stage further shrinks the safe distance to avoid abnormalities, improves the mold closing stability, and complete mold closing is performed in the third stage.

Description

Technical Field

[0001] The invention discloses an intelligent anti-pinch injection sole upper injection molding machine, belonging to the field of injection molding equipment. Background Art

[0002] The sole and upper injection molding machine is a highly efficient equipment specially used for molding the upper and sole at one time. During the injection molding process, the shoe mold clamps the upper, and then the sole material is injected. After cooling, the sole is formed in one piece.

[0003] When the clamping mechanism of the injection molding machine opens and closes the mold, if there is no effective anti-pinch device or the anti-pinch device fails, the operator's fingers or other body parts may be caught between the molds, resulting in serious work-related injuries. Existing equipment has a way to set up grating protection, but the grating protection requires the operator to completely leave the detection area when using it, which leads to slow movements and affects production efficiency. Therefore, a more efficient intelligent anti-pinch device is needed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide an intelligent anti-pinch injection molding machine for shoe soles and uppers to solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: an intelligent anti-pinch injection sole and upper injection molding machine, whose structure includes: a chassis and a controller, a rotatable turntable is provided on the top of the chassis, the surface of the turntable is respectively installed with a driver, the driver is connected to the controller through a wire, the driver includes a driving push rod, a top pressing mold frame, and a bottom clamping frame, the driving push rod drives the top pressing mold frame and the bottom clamping frame respectively, the top pressing mold frame is installed on the platform at the top of the turntable, the bottom clamping frame is installed on the platform at the bottom of the turntable, the top pressing mold frame and the bottom clamping frame are arranged in a set, the driver is arranged in an array on the surface of the turntable, the driving push rod includes a motor, and a reducer, the motor The main shaft is meshed with the internal gear of the reducer, the output part of the reducer is provided with a protective shell, and the reducer is meshed with the inner cylinder inside the protective shell, and the inner cylinder can be driven to move linearly by the rotation of the reducer, and the inner cylinder is connected to a movable rod installed on the outside of the protective shell, one side of the movable rod is connected to the inner cylinder, and the other side is provided with a regulator, which is respectively connected to the top pressing mold frame and the bottom clamping frame through the regulator, and the regulator includes a first connecting part and a reduction rod and a second connecting part, the first connecting part is nested and fixed with the reduction rod, the reduction rod is movably connected to the second connecting part, the opening of the second connecting part is sealed by a ring ear, and the inner cavity of the first connecting part is provided with a pressure regulator, and the pressure regulator controls the circulation speed of the airflow in the reduction rod and the inner cavity of the second connecting part.

[0006] Preferably, the top pressure mold frame includes a first connecting rod and a sleeve, a movable shaft is fixed at the bottom of the sleeve, a push rod that can move up and down is installed inside the movable shaft, one end of the push rod is connected to the first connecting rod at the top, and the bottom is fixedly matched with the first clamp seat, and the driving push rod pushes the first connecting rod to drive the push rod to move up and down.

[0007] Preferably, the bottom clamping frame includes symmetrically arranged clamping plates, a movable shaft is provided in the middle of the clamping plates, the two clamping plates are matched through the movable shaft, a movable second connecting rod is provided on the side of the clamping plate away from the movable shaft, one side of the second connecting rod is connected to a fixed fixing seat, and one side is connected to the clamping plate, a push rod is provided on the movable shaft in the middle of the second connecting rod, the push rod is movably matched with the balance frame, and the middle of the balance frame is connected to the adjuster.

[0008] Preferably, the deceleration rod includes a rod body nested with the first connecting part, a movable valve is provided on one side of the rod body, and the rod body is slidably matched with the inner surface of the second connecting part through the movable valve, and the surface of the movable valve is provided with a first pad body and a limit seat, and the limit seat and the first pad body are arranged in order, and a through hole is provided in the middle of the first pad body and the limit seat, and a slidable inner rod is provided in the through hole, and the inner rod is nested with the inner ring inside the rod body, and the inner rod is installed inside the second connecting part through a base.

[0009] Preferably, the limit seat is made of rubber material, and the first pad body is a porous structure, which is deformed after being squeezed, and the first pad body can reset itself after the pressure is released.

[0010] Preferably, the voltage regulator includes a limiting shell, a first outlet is provided at the top of the internal cavity of the limiting shell, and a second outlet is provided at the bottom, an annular groove that can move up and down is installed in the middle of the cavity of the limiting shell, a protrusion is installed in the middle of the annular groove, the protrusion can abut against the channel opening of the first outlet or the second outlet, an inner hole is provided on the surface of the annular groove, the inner hole passes through both sides of the protrusion, and the protrusion is limited by a spring.

[0011] Preferably, the inner holes are distributed on the edge of the protrusion in a circular array.

[0012] Preferably, the first pad body adopts a sponge structure.

[0013] Preferably, the motor is a servo motor with an encoder inside to control the rotational torque.

[0014] Preferably, the inner ring is made of rubber material, and the inner diameter of the inner ring is consistent with the diameter of the inner rod, and after the inner rod contacts the inner ring, the rod body and the inner cavity of the first connecting part form a seal.

[0015] The present invention discloses an intelligent anti-pinch injection sole upper injection molding machine, which has the following effects: the device is driven by a motor to drive a reducer and an inner cylinder, and the moving speed and moving torque can be controlled by controlling the voltage and current of the motor. A multi-stage displacement stroke is set by electronic control. The first stage quickly closes the film and maintains a safe distance, and stops quickly after being blocked. The second stage further shrinks the safe distance to avoid abnormalities and improve the mold closing stability. The third stage performs complete mold closing, which is safer when used.

[0016] The first pad and the limit seat inside the deceleration rod connected to the first connection part cooperate with the second connection part to provide further protection during the safety stroke and improve the response efficiency. The first pad and the limit seat on the surface of the movable valve cooperate with the inner cavity of the second connection part. When compressed, there is a change in current, and the limit seat can provide buffer protection to reduce the clamping pressure. An inner rod is also arranged inside the rod body. The inner rod is controlled by the voltage regulator to bulge against the air hole when the movable valve is withdrawn, so as to avoid the deceleration rod from hitting the ring ear when withdrawing, thereby protecting the regulator and making the equipment more stable during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0018] Figure 1 The present invention is a schematic structural diagram of an intelligent anti-pinch injection sole upper injection molding machine.

[0019] Figure 2 It is a schematic diagram of the structure of the driver of the present invention.

[0020] Figure 3 It is a schematic cross-sectional structural diagram of the top pressing mold frame of the present invention.

[0021] Figure 4 It is a structural schematic diagram of the bottom clamp frame of the present invention.

[0022] Figure 5 It is a schematic cross-sectional structural diagram of the driving push rod of the present invention.

[0023] Figure 6 It is a schematic cross-sectional structural diagram of the regulator of the present invention.

[0024] Figure 7 It is a schematic cross-sectional structural diagram of the deceleration rod of the present invention.

[0025] Figure 8 It is a schematic cross-sectional structural diagram of the voltage regulator of the present invention.

[0026] In the figure:

[0027] 1. Driver; 2. Turntable; 3. Chassis; 4. Controller;

[0028] 11. Driving push rod; 12. Top pressing die frame; 13. Bottom clamping frame;

[0029] 111, motor; 112, reducer; 113, protective shell; 114, inner cylinder; 115, movable rod; 116, regulator;

[0030] 121, first connecting rod; 122, sleeve; 123, movable shaft; 124, push rod; 125, first clamping seat;

[0031] 131. Clamp; 132. Fixed seat; 133. Second connecting rod; 134. Push rod; 135. Balancing frame;

[0032] 161, first connection part; 162, voltage regulator; 163, deceleration rod; 164, ring ear; 165, second connection part;

[0033] 621, limit housing; 622, first outlet; 623, second outlet; 624, protrusion; 625, annular groove; 626, inner hole; 627, spring;

[0034] 631, rod body; 632, inner ring; 633, inner rod; 634, movable valve; 635, first cushion body; 636, limit seat; 637, base. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] When the clamping mechanism of the existing injection molding machine opens and closes the mold, if there is no effective anti-pinch device or the anti-pinch device fails, the operator's fingers or other body parts may be caught between the molds, resulting in serious industrial accidents. The existing equipment has a way to set up grating protection, but the grating protection requires the operator to completely leave the detection area when using it, which leads to slow movements and affects production efficiency. Therefore, a more efficient intelligent anti-pinch device is needed. In order to solve the above problems, this case proposes the following technical solutions:

[0038] See also Figures 1 to 8 The present invention provides a technical solution for an intelligent anti-pinch injection sole upper injection molding machine: its structure includes: a chassis 3 and a controller 4, a rotatable turntable 2 is arranged on the top of the chassis 3, the surface of the turntable 2 is respectively installed with a driver 1, the driver 1 is connected to the controller 4 through a wire, the driver 1 includes a driving push rod 11, a top pressing mold frame 12, and a bottom clamping frame 13, the driving push rod 11 drives the top pressing mold frame 12 and the bottom clamping frame 13 respectively, the top pressing mold frame 12 is installed on the platform at the top of the turntable 2, the bottom clamping frame 13 is installed on the platform at the bottom of the turntable 2, the top pressing mold frame 12 and the bottom clamping frame 13 are arranged in a set, the driver 1 is arranged on the surface of the turntable 2 in an array, the driving push rod 11 includes a motor 111, and a reducer 112, the main shaft of the motor 111 is meshed with the internal gear of the reducer 112, the output part of the reducer 112 is provided with a protective shell 113, and the reducer The reducer 112 is meshed with the inner cylinder 114 inside the protective shell 113. The inner cylinder 114 can be driven to move linearly by rotating the reducer 112. The inner cylinder 114 is connected to a movable rod 115 installed outside the protective shell 113. One side of the movable rod 115 is connected to the inner cylinder 114, and the other side is provided with a regulator 116. The top pressing mold frame 12 and the bottom clamp frame 13 are respectively connected through the regulator 116. The regulator 116 includes a first connecting portion 161, a reduction rod 163 and a second connecting portion 165. The first connecting portion 161 and the reduction rod 163 are nested and fixed, and the reduction rod 163 is movably connected to the second connecting portion 165. The opening of the second connecting portion 165 is sealed by a ring ear 164. The inner cavity of the first connecting portion 161 is provided with a pressure regulator 162. The pressure regulator 162 controls the circulation speed of the airflow in the inner cavity of the reduction rod 163 and the second connecting portion 165.

[0039] The main structure of the device includes a base frame 3, a turntable 2 is provided on the top of the base frame 3, a driver 1 is installed on the surface of the turntable 2, the driver 1 is used to clamp the mold, the top of the top pressing mold frame 12 is used to install the upper fixing mold, and the bottom clamping frame 13 at the bottom clamps the sole mold. The top pressing mold frame 12 and the bottom clamping frame 13 are driven by a driving push rod 11. The controller 4 can control the rotation of the middle turntable 2 to switch the workstation, thereby improving production efficiency.

[0040] The specific top pressure mold frame 12 includes a sleeve 122, and a first connecting rod 121 is installed inside the sleeve 122. The first connecting rod 121 is composed of two movable plates. The driving push rod 11 pushes the connecting part in the middle of the movable plate. The movable shaft 123 is installed on the surface of the turntable 2. The first connecting rod 121 pushes the push rod 124 installed inside the movable shaft 123. The bottom of the push rod 124 is provided with a first clamping seat 125 for fixing the mold. The first clamping seat 125 is used to fix the upper mold, and the mold is pressed down by pushing.

[0041] The bottom clamping frame 13 includes a clamping plate 131, a movable shaft is provided in the middle of the clamping plate 131, and the movable shaft is embedded in the surface of the turntable 2. A second connecting rod 133 and a fixed seat 132 are installed on both sides of the clamping plate 131. The balance frame 135 pushes the top rod 134 installed on both sides of the balance frame 135 to drive the second connecting rod 133 to move and drive the clamping plate 131 to clamp in the middle, thereby realizing the clamping of the mold.

[0042] The structure of the push rod 11 for driving the top pressure mold frame 12 and the bottom clamping frame 13 includes a motor 111. The motor 111 adopts a servo motor. The torque and speed of the motor 111 during operation can be changed by changing variables through the motor controller inside the controller 4. The device is divided into two stages of movement during use. In the initial stage, the motor speed is higher to improve the clamping efficiency, but the torque is reduced to avoid excessive clamping force.

[0043] In order to further improve the stability of the controlled displacement stroke, the motor 111 drives the inner cylinder 114 inside the protective shell 113 through the reducer 112. The main shaft of the reducer 112 adopts a screw structure. The screw of the reducer 112 cooperates with the thread inside the inner cylinder 114. The inner cylinder 114 pushes the movable rod 115 and the adjuster 116 to make the top pressing mold frame 12 and the bottom clamping frame 13 move.

[0044] The control of the screw rod can improve the control stability of the motor 111, and the self-locking of the spindle screw rod stroke of the inner cylinder 114 and the reducer 112 can avoid loosening when maintaining pressure.

[0045] The regulator 116 includes a first connection part 161 and a deceleration rod 163. The first connection part 161 is fixed to the deceleration rod 163 and slidably cooperates with the cavity inside the second connection part 165. The second connection part 165 and the ring ear 164 are threadedly cooperated to facilitate the replacement of accessories for subsequent use. A pressure regulator 162 is provided in the cavity of the first connection part 161 to control the internal airflow. Controlling the airflow through the pressure regulator 162 can provide a buffer space for the deceleration rod 163 when it is displaced, and can further protect it at a set safety distance.

[0046] Specifically, a movable valve 634 is provided at the bottom of the rod body 631 of the deceleration rod 163. The movable valve 634 cooperates with the inner cavity of the second connecting portion 165. In order to slow down the moving speed of the movable valve 634 in the second connecting portion 165, a first gasket 635 and a limit seat 636 are sequentially arranged on the surface of the movable valve 634. The limit seat 636 is made of a rubber sheet and is spaced by the sponge structure of the first gasket 635 in the middle. The sponge structure can make the limit seat 636 form independent cavities, and the first gasket 635 is used to connect between each cavity. After the movable valve 634 and the second connecting portion 165 are reset, the first gasket 635 can reset the limit seat 636 to form multiple independent buffer cavities again.

[0047] This design can form a two-stage protection space when the driving push rod 11 pushes the pressing die holder 12. Once a clamping danger occurs within the safe stroke, the change in resistance will cause the driving push rod 11 to stop quickly, and the gradual retraction of the regulator 116 reduces the pressure on the hand or the workpiece.

[0048] An inner rod 633 is also installed inside the rod body 631. The inner rod 633 is fixed to the bottom of the second connecting portion 165 through a base 637. When the movable valve 634 presses the first gasket 635 and the limit seat 636, the inner rod 633 will reversely enter the inner cavity of the rod body 631 and be nested with the inner ring 632 inside the rod body 631. The inner ring 632 is made of rubber material. After the inner rod 633 is pushed in, the rod body 631 forms a seal with the inner cavity of the first connecting portion 161. During pressing, the pressure regulator 162 gradually deflates, allowing the inner rod 633 to enter. After the movable valve 634 is in close contact with the second connecting portion 165, the final clamping work is carried out.

[0049] In order to prevent damage to the internal first gasket 635 and the limit seat 636 caused by pressure, when performing multi-stage pressing, there is still a gap between the limit seats 636 after the first connecting portion 161 contacts the ring ear 164, avoiding damage to the first gasket 635 caused by excessive compression.

[0050] When the clamping plate 131 is reset, the thrust is converted into a pulling force, and the first connecting portion 161 and the second connecting portion 165 will be pulled apart. The rapid pulling apart will cause damage to the ring ear 164 of the movable valve 634 device. Therefore, the device is provided with a pressure regulator 162, and the pressure regulator 162 is provided with a limit shell 621. The limit shell 621 is provided with a first outlet 622 and a second outlet 623 at the upper and lower parts to control the internal and external airflows. A sliding annular groove 625 is provided in the middle, and a protrusion 624 is provided in the middle of the annular groove 625 to block the first outlet 622 and the second outlet 623. The protrusion 624 adopts a ball head structure, and the protrusion 624 is installed by a spring 621 installed above and below the annular groove 625. 27 is used to control the gap. An inner hole 626 is provided on the surface of the annular groove 625. The inner hole 626 can allow a small airflow to flow. Once a large airflow moves, the annular groove 625 will be pushed to move. When pressing, the protrusion 624 blocks the first outlet 622, reduces the speed of movement, quickly triggers the current detection device, and quickly stops after the alarm is triggered. When demoulding, the movable valve 634 and the second connecting part 165 are pulled apart. The rapid pulling makes the inner hole 626 press against the second outlet 623 to reduce the speed of inhaling air, thereby slowing down the pulling speed of the movable valve 634 and the second connecting part 165, thereby avoiding the collision between the ring ear 164 and the movable valve 634.

[0051] The device is driven by the motor 111 to drive the reducer 112 and the inner cylinder 114. The moving speed and the moving torque can be controlled by controlling the voltage and current of the motor 111. The double-stage formation is set by electric control. The first stage quickly closes the film with a small torque setting. It stops quickly after being blocked. The second stage increases the torque for strong extrusion to improve the stability of the mold closing.

[0052] The first pad 635 and the limit seat 636 inside the deceleration rod 163 connected to the first connection part 161 cooperate with the second connection part 165 to further protect during the safety stroke and improve the response efficiency. The first pad 635 and the limit seat 636 on the surface of the movable valve 634 cooperate with the inner cavity of the second connection part 165, and there is a change in current during compression, and the limit seat 636 can provide buffer protection to reduce the clamping pressure. An inner rod 633 is also arranged inside the rod body 631. The inner rod 633 is controlled by the voltage regulator 162 so that the protrusion 624 presses against the air hole when the movable valve 634 is withdrawn, so as to prevent the deceleration rod 163 from hitting the ring ear 164 when it is withdrawn, thereby protecting the regulator 116, and the equipment is more stable during long-term use.

[0053] The above only describes the basic principles and preferred implementations of the present invention. Those skilled in the art may make many changes and improvements based on the above description, and these changes and improvements should fall within the protection scope of the present invention.

[0054] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An intelligent anti-pinch injection sole upper injection molding machine, the structure of which includes: A base frame (3) and a controller (4), wherein a rotatable turntable (2) is provided on the top of the base frame (3), and the surface of the turntable (2) is respectively mounted with a driver (1), and the driver (1) is connected to the controller (4) via a wire, and the driver (1) comprises a driving push rod (11), a top pressing mold frame (12), and a bottom clamping frame (13), and the driving push rod (11) drives the top pressing mold frame (12) and the bottom clamping frame (13) respectively, and the top pressing mold frame (12) is mounted on a platform at the top of the turntable (2), and the bottom clamping frame (13) is mounted on a platform at the bottom of the turntable (2), and the top pressing mold frame (12) and the bottom clamping frame (13) are arranged in a set, and the driver (1) is arranged in an array on the surface of the turntable (2), characterized in that: The driving push rod (11) comprises a motor (111) and a reducer (112); the main shaft of the motor (111) meshes with the internal gear of the reducer (112); the output portion of the reducer (112) is provided with a protective shell (113); the reducer (112) and the inner cylinder (114) inside the protective shell (113) mesh with each other; the inner cylinder (114) can be driven to move linearly by the rotation of the reducer (112); the inner cylinder (114) is connected to a movable rod (115) installed outside the protective shell (113); one side of the movable rod (115) is connected to the inner cylinder (114); the other side of the movable rod (115) is provided with an adjuster (116); The regulator (116) is connected to the top pressing mold frame (12) and the bottom clamping frame (13) respectively, and the regulator (116) comprises a first connecting part (161), a deceleration rod (163) and a second connecting part (165), the first connecting part (161) and the deceleration rod (163) are nested and fixed, the deceleration rod (163) and the second connecting part (165) are movably connected, the opening of the second connecting part (165) is sealed by a ring ear (164), and the inner cavity of the first connecting part (161) is provided with a pressure regulator (162), and the pressure regulator (162) controls the circulation speed of the airflow in the inner cavity of the deceleration rod (163) and the second connecting part (165); The deceleration rod (163) comprises a rod body (631) nested with the first connecting part (161); a movable valve (634) is provided on one side of the rod body (631); the rod body (631) is slidably matched with the inner surface of the second connecting part (165) through the movable valve (634); a first cushion body (635) and a limit seat (636) are provided on the surface of the movable valve (634); the limit seat (636) and the first cushion body (635) are arranged in order; a through hole is provided in the middle of the first cushion body (635) and the limit seat (636); a slidable inner rod (633) is provided in the through hole; the inner rod (633) is nested with the inner ring (632) inside the rod body (631); and the inner rod (633) is installed inside the second connecting part (165) through a base (637).

2. The intelligent anti-pinch injection sole upper injection molding machine according to claim 1, characterized in that: The top pressing mold frame (12) comprises a first connecting rod (121) and a sleeve (122). A movable shaft (123) is fixed at the bottom of the sleeve (122). A push rod (124) that can move up and down is installed inside the movable shaft (123). One end of the push rod (124) is connected to the first connecting rod (121) at the top, and the bottom is fixedly matched with the first clamping seat (125). The driving push rod (11) pushes the first connecting rod (121) to drive the push rod (124) to move up and down.

3. The intelligent anti-pinch injection sole upper injection molding machine according to claim 1, characterized in that: The bottom clamp frame (13) comprises symmetrically arranged clamping plates (131), wherein a movable shaft is provided in the middle of the clamping plates (131), and the two clamping plates (131) are matched with each other via the movable shaft, and a movable second connecting rod (133) is provided on the side of the clamping plate (131) away from the movable shaft, and one side of the second connecting rod (133) is connected to a fixed fixing seat (132), and one side is connected to the clamping plate (131), and a push rod (134) is provided on the movable shaft in the middle of the second connecting rod (133), and the push rod (134) is movably matched with a balance frame (135), and the middle of the balance frame (135) is connected to the regulator (116).

4. The intelligent anti-pinch injection sole upper injection molding machine according to claim 1, characterized in that: The limiting seat (636) is made of rubber material, and the first cushion body (635) is a porous structure, which deforms after being squeezed, and the first cushion body (635) can reset itself after the pressure is released.

5. The intelligent anti-pinch injection sole upper injection molding machine according to claim 1, characterized in that: The voltage regulator (162) comprises a limiting shell (621), the top of the internal cavity of the limiting shell (621) is provided with a first outlet (622), and the bottom is provided with a second outlet (623), a ring groove (625) movable up and down is installed in the middle of the cavity of the limiting shell (621), a protrusion (624) is installed in the middle of the ring groove (625), the protrusion (624) can abut against the channel opening of the first outlet (622) or the second outlet (623), an inner hole (626) is provided on the surface of the ring groove (625), the inner hole (626) passes through both sides of the protrusion (624), and the protrusion (624) is limited by a spring (627).

6. The intelligent anti-pinch injection sole upper injection molding machine according to claim 5, characterized in that: The inner holes (626) are distributed in a circular array on the edge of the protrusion (624).

7. The intelligent anti-pinch injection sole upper injection molding machine as claimed in claim 4, characterized in that: The first cushion body (635) adopts a sponge structure.

8. The intelligent anti-pinch injection sole upper injection molding machine according to claim 1, characterized in that: The motor (111) is a servo motor with an encoder inside, which can control the rotation torque.

9. The intelligent anti-pinch injection sole upper injection molding machine according to claim 1, characterized in that: The inner ring (632) is made of rubber material, and the inner diameter of the inner ring (632) is consistent with the diameter of the inner rod (633). After the inner rod (633) and the inner ring (632) are in contact, a seal is formed between the rod body (631) and the inner cavity of the first connecting portion (161).

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