A kind of foaming equipment for insole processing

Abstract

The utility model discloses a kind of foaming equipment for insole processing, it is related to insole processing technical field, including processing table and vertical fixed on its processing stand, processing table slidingly encases multiple arranged mobile seat, mobile seat is made of H type sliding base, drive mechanism is equipped in H type sliding base to control mobile seat directional movement, and H type sliding base is equipped with stripping assembly, push block in lower die cavity convex hole is connected magnetic block by push rod, H type sliding base is embedded electromagnet, repulsion force is generated by electrification and stripping is pushed;Lower die is installed on mobile seat top, and the upper die in its directly above is connected with the longitudinal hydraulic cylinder output rod on processing stand;Raw material tank is arranged on processing table, and raw material tank is driven to move along lower die arrangement direction by linear moving assembly on processing stand.This equipment can realize multi-station collaborative work, improve production efficiency and forming precision, reduce artificial strength.

Description

Technical Field

[0001] This utility model belongs to the field of shoe insole processing technology, specifically relating to a foaming device for shoe insole processing. Background Technology

[0002] In the insole processing industry, foam molding is the core process for producing soft, breathable insoles. The performance of the equipment directly affects the molding accuracy, production efficiency, and product consistency of the insoles. While current insole foaming equipment can generally meet production requirements, some problems remain: Current insole foaming equipment primarily operates in a single-station mode, requiring raw material injection, foam molding, cooling, and demolding to be completed sequentially at the same station. This results in waiting times between processes, low production efficiency, and difficulty in meeting the demands of large-scale production. The raw material supply mechanism is fixed in position, requiring manual movement of the mold to the replenishment station or adjustment of the mold position through complex transmission structures. This leads to poor replenishment accuracy and problems such as raw material spillage and uneven injection, affecting the quality of the molded insoles. Demolding methods often involve manual prying or mechanical ejector pins. Manual demolding is labor-intensive, inefficient, and prone to causing damage and deformation of the insole edges. Mechanical ejector pins have difficulty controlling their demolding force, easily damaging the mold cavity or leaving ejector pin marks on the insole surface, reducing the product qualification rate.

[0003] To solve the above-mentioned technical problems, there is an urgent need to develop a foaming equipment for shoe insole processing that features multi-station collaborative operation, high degree of automation, good molding accuracy, and excellent demolding effect, so as to improve production efficiency and product quality and reduce the intensity of manual labor. Utility Model Content

[0004] In view of the technical problems of existing shoe insole foaming equipment, such as low efficiency of single station, inaccurate material replenishment, difficult demolding and product damage, poor positioning, slow cooling and low automation, this utility model provides a foaming equipment for shoe insole processing.

[0005] The solution adopted by this utility model to solve its technical problem is as follows: a foaming device for shoe insole processing includes a processing table, a processing frame vertically fixed on the processing table, a plurality of movable seats arranged in an arrangement slidingly mounted on the processing table, a lower mold installed above the movable seats, an upper mold correspondingly arranged directly above the lower mold, and the upper mold being connected to the output rod of a longitudinal hydraulic cylinder on the processing frame; the movable seat includes an H-shaped slide, a driving mechanism is provided on the H-shaped slide, the movable seat is controlled by the driving mechanism to move directionally on the processing table, and a demolding component is provided on the H-shaped slide; a raw material tank is also provided on the processing table, the raw material tank is driven to move along the arrangement direction of the lower mold by a linear moving component on the processing frame.

[0006] Furthermore, the drive mechanism includes a motor installed in the H-shaped slide, the output end of the motor is fixedly fitted with a gear, and the surface of the processing table is provided with a rack along the moving direction of the moving seat, and the gear meshes with the rack.

[0007] Furthermore, the linear motion assembly includes a second motor, a screw, and a nut. The second motor is fixedly mounted on the processing stand. The screw is fixed to the output end of the second motor and driven to rotate by it. The screw is parallel to the arrangement direction of the moving seat. A nut is threaded onto the screw and is fixedly connected to a fixing ring on the raw material tank. A slide rod is arranged parallel to the screw on the processing stand. A sliding sleeve is slidably mounted on the slide rod and is connected to the nut.

[0008] Furthermore, a convex hole is opened through the cavity of the lower mold, and a push block is longitudinally slidably fitted inside the convex hole via a push rod. The shape and size of the push block match the convex hole. A magnetic block is fixed at the lower end of the push rod, and an electromagnet is embedded in the horizontal plate of the H-shaped slide. When the electromagnet is energized, a repulsive force is generated between it and the magnetic block.

[0009] Furthermore, a contact sensor is installed in front of the movable seat, and a baffle is provided at the front end of the processing table, with the contact sensor located within the height range of the baffle.

[0010] Furthermore, the surface of the processing table is provided with a slide rail along the moving direction of the movable seat, and the movable seat is slidably mounted on the slide rail for directional movement.

[0011] Furthermore, a cooling fan is installed on the processing stand.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention features multiple independent moving seats, each corresponding to a mold and drive system, capable of independently completing processes such as raw material injection, foaming molding, and cooling demolding. Each moving seat is individually controlled by a drive mechanism, allowing simultaneous operation at different workstations with seamless process transitions, significantly improving production efficiency. The linear motion component drives the raw material tank via a screw-nut combination, while the auxiliary limiting of the sliding rod and sleeve ensures smooth movement of the raw material tank, guaranteeing precise alignment of the discharge port with the lower mold cavity for automatic raw material injection. The equipment is equipped with an electromagnetic drive demolding component. When the lower mold moves to the unloading station, a contact sensor triggers a signal, automatically energizing the electromagnet to generate a repulsive force, pushing the push block to eject the molded insole. This eliminates the need for manual prying or operation of mechanical ejector pins, solving the problem of high labor intensity associated with traditional demolding methods. From raw material supply to mold positioning and mold closing, this solution is fully automated through mechanical structures and an electrical control system, avoiding problems such as feeding deviations and inaccurate positioning caused by manual operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a top view of the structure of this utility model; Figure 4 This is a schematic diagram of the overall structure of the movable base of this utility model; Figure 5 This is an exploded view of the movable seat of this utility model.

[0014] In the diagram: 1. Machining table; 2. Machining stand; 3. Hydraulic cylinder; 4. Upper mold; 5. Moving seat; 501. H-shaped slide; 502. Motor 1; 503. Gear; 6. Lower mold; 7. Rack; 8. Slide rail; 9. Linear movement assembly; 901. Motor 2; 902. Screw; 903. Nut; 904. Slide rod; 905. Sliding sleeve; 10. Raw material tank; 11. Cooling fan; 12. Baffle; 13. Contact sensor; 14. Electromagnet; 15. Magnetic block; 16. Push rod; 17. Push block; 18. Convex hole. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Please see Figure 1-5 This utility model provides a technical solution for a foaming equipment for shoe insole processing: Example

[0017] like Figure 1 , Figure 2 , Figure 3 As shown, the foaming equipment for insole processing in this embodiment includes a horizontally arranged processing table 1. A processing stand 2 is vertically fixed on the upper surface of the processing table 1. Multiple longitudinal hydraulic cylinders 3 are installed below the crossbeam of the processing stand 2. The output rods of the longitudinal hydraulic cylinders 3 are arranged downward and fixedly connected to an upper mold 4. The upper mold 4 is used to cooperate with the lower mold 6 below to complete the foaming molding operation of the insole.

[0018] The upper surface of the processing table 1 has multiple sets of parallel slide rails 8 along the depth direction. Each set of slide rails 8 has a movable seat 5 slidably mounted on it. The multiple movable seats 5 are arranged at equal intervals on the processing table 1 and can move back and forth along the slide rails 8 in a directional manner. When the movable seat 5 moves to the end of the slide rail 8, the upper mold and the lower mold are exactly aligned. The slide rail 8 provides precise guidance for the movement of the movable seat 5, avoiding deviation during the movement and ensuring the accuracy of the mold closing between the upper and lower molds. The movable seat 5 is composed of an H-shaped slide 501. The lower mold 6 is fixedly mounted on the top of the H-shaped slide 501 by bolts. The lower mold 6 corresponds vertically to the upper mold 4, and the shape of the mold cavity of the lower mold 6 is adapted to the shape of the insole to be processed.

[0019] like Figure 4 As shown, a drive mechanism is fixedly installed in the internal cavity of the H-shaped slide 501. The drive mechanism includes a motor 502, which is fixed to the inner wall of the H-shaped slide 501 by bolts. A gear 503 is fixedly mounted on the output end of the motor 502 via a flat key. A rack 7 is fixedly installed on the upper surface of the processing table 1 between two slide rails 8. The length direction of the rack 7 is consistent with that of the slide rails 8, and the gear 503 meshes with the rack 7. When the motor 502 starts, its output end drives the gear 503 to rotate. Since the gear 503 meshes with the stationary rack 7, the gear 503 generates a driving force along the length direction of the rack 7 during rotation, thereby driving the entire moving seat 5 to move directionally along the slide rails 8. The gear and rack meshing drive method ensures that each moving seat 5 can accurately stop at the preset work position. At the same time, each of the three moving seats 5 is equipped with an independent drive mechanism, which can realize individual control and provide a structural basis for multi-workstation collaborative operation.

[0020] A linear motion assembly 9 is also installed on the crossbeam of the processing stand 2, such as... Figure 3 As shown, the linear motion assembly 9 includes a second motor 901, a screw 902, a nut 903, a slide rod 904, and a sliding sleeve 905. The second motor 901 is fixedly mounted on one side of the machining stand 2 via a motor mount. One end of the screw 902 is fixedly connected to the output end of the second motor 901, and the other end is rotatably supported on the other side of the machining stand 2 via a bearing seat. The axial direction of the screw 902 is parallel to the arrangement direction of the moving seats 5. The nut 903 is threaded onto the screw 902. A sliding rod 904 parallel to the screw 902 is fixed on the crossbeam of the processing stand 2. A sliding sleeve 905 is slidably fitted onto the sliding rod 904, and the sliding sleeve 905 is fixedly connected to the nut 903 via a connecting rod. A raw material tank 10 is set on the processing table. The raw material tank 10 is connected to a feeding pipe to supply material to the lower mold cavity. A fixing ring is set on the raw material tank, and the nut 903 is fixedly connected to the fixing ring. A discharge port is set at the bottom of the raw material tank 10 for injecting foaming raw material into the lower mold 6. Inside the mold body of the upper mold 4 or the lower mold 6, an annular heating groove is opened 10-15mm along the outer circumference of the mold cavity. A heating tube or heating plate is embedded in the groove. The contact surface between the heating tube or heating plate and the mold is filled with thermally conductive silicone grease to ensure efficient heat transfer to the mold cavity, so that the mold cavity can reach the processing temperature required for shoe insole foaming.

[0021] When material needs to be replenished to the lower die 6, motor 901 starts and drives screw 902 to rotate. Because nut 903 is threadedly engaged with screw 902, and the sliding engagement of sleeve 905 and slide rod 904 restricts the rotational freedom of nut 903, nut 903 can move smoothly along the axis of screw 902, thereby driving the raw material tank 10 to move synchronously, achieving precise material replenishment to the lower die 6 at different stations. The design of slide rod 904 and sleeve 905 effectively improves the stability of the raw material tank 10 during movement, preventing material spillage due to shaking, and ensuring the accuracy and reliability of the replenishment process.

[0022] A cooling fan 11 is also installed on one side column of the processing stand 2. The air outlet of the cooling fan 11 faces the mold closing area of ​​the upper and lower molds. After the insole is foamed and molded, the cooling fan 11 can blow air onto the molded insole and mold to accelerate the cooling of the mold and insole, shorten the cooling time, improve production efficiency, and avoid the risk of burns when taking out materials at high temperature.

[0023] A contact sensor 13 is installed on the front side of the movable seat 5, and a baffle 12 is fixedly installed on the front edge of the processing table 1. The height of the baffle 12 matches the installation height of the contact sensor 13, so that when the movable seat 5 moves forward to its limit position, the contact sensor 13 can contact the baffle 12. The contact sensor 13 is electrically connected to the drive mechanism of the movable seat 5. When the contact sensor 13 contacts the baffle 12, it sends a signal to the control unit. The control unit then controls the motor 502 to stop rotating to prevent the movable seat 5 from moving excessively and causing structural collision damage, thus playing a limit protection role. It also provides an auxiliary signal for the station positioning of the movable seat 5, ensuring the consistency of the station position of each movable seat 5. Furthermore, when the contact sensor 13 contacts the baffle, the lower mold also moves precisely to the bottom of the raw material tank 10, so as to facilitate accurate material replenishment to the lower mold.

[0024] The working process of this embodiment is as follows: In the initial state, the moving seat 5 moves to the feeding station below the raw material tank 10 under the drive mechanism. The linear moving component 9 drives the raw material tank 10 to move above the lower mold 6, and injects a quantitative amount of foaming raw material into the lower mold 6 through the raw material tank 10. After the feeding is completed, the moving seat 5 moves to the molding station under the drive mechanism. At this time, the lower mold and the upper mold are completely aligned. Then, the longitudinal hydraulic cylinder 3 drives the upper mold 4 to move downward and close with the lower mold 6 to perform foaming molding. Through the cyclic movement and independent control of the three moving seats 5, multi-station continuous operation is realized, which greatly improves production efficiency. Example

[0025] Based on Embodiment 1, the similarities between this embodiment and Embodiment 1 will not be repeated here. The differences are as follows: a demolding component is provided on the lower mold to facilitate demolding of the insole.

[0026] like Figure 4 , Figure 5 As shown, a convex hole 18 is formed through the cavity of the lower mold 6. The axial direction of the convex hole 18 is consistent with the depth direction of the cavity of the lower mold 6. A push block 17 is slidably fitted inside the convex hole 18. The shape and size of the push block 17 are perfectly matched with the convex hole 18 to ensure that the push block 17 can slide smoothly longitudinally within the convex hole 18. The upper surface of the push block 17 is flush with the bottom surface of the cavity of the lower mold 6 to avoid affecting the molding quality of the insole. A push rod 16 is fixedly connected to the lower surface of the push block 17. The lower end of the push rod 16 extends to the top of the horizontal plate of the H-shaped slide block 501, and a magnet 15 is fixedly installed at the lower end of the push rod 16. An electromagnet 14 is embedded on the horizontal plate of the H-shaped slide block 501 at the position corresponding to the magnet 15. The electromagnet 14 is electrically connected to the control unit. The magnetic field generated by the electromagnet 14 after being energized is opposite in polarity to the magnetic field of the magnet 15, thereby generating a repulsive force.

[0027] When the moving seat 5, carrying the molded insole, moves to the unloading station, the contact sensor 13 contacts the baffle 12. At this time, the control unit not only stops the drive mechanism but also simultaneously energizes the electromagnet 14. The energized electromagnet 14 generates a strong repulsive force, which acts on the magnetic block 15, pushing it upwards. This, in turn, drives the pusher 16 to slide the pusher block 17 upwards along the convex hole 18. The pusher block 17 lifts the molded insole from the mold cavity, separating the insole from the inner wall of the lower mold 6, thus achieving automatic demolding. The electromagnetically driven demolding method has the advantages of fast response and stable demolding force, avoiding insole deformation or mold damage that may occur with mechanical demolding. Furthermore, the demolding action and the station positioning of the moving seat are linked and controlled by the contact sensor, automating the demolding process without manual intervention, further improving production efficiency and operational safety.

[0028] After demolding, the control unit de-energizes the electromagnet 14, eliminating the repulsive force. The push block 17, push rod 16, and magnetic block 15 then reset under their own gravity, awaiting the next molding operation. This demolding assembly has a simple structure and high reliability. Combined with a multi-station collaborative operation mode, it forms a complete automated production process from raw material injection and foaming molding to automatic demolding, effectively reducing manual labor intensity and improving production efficiency and product quality stability.

[0029] The above description is only a preferred embodiment of the present utility model and does not limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A foaming device for shoe insole processing, comprising a processing table (1), on which a processing stand (2) is vertically fixed, characterized in that: Multiple movable seats (5) are slidably mounted on the processing table (1). A lower mold (6) is installed above the movable seat (5). An upper mold (4) is correspondingly arranged directly above the lower mold (6). The upper mold (4) is connected to the output rod of the longitudinal hydraulic cylinder (3) on the processing stand (2). The movable seat (5) includes an H-shaped slide (501). A driving mechanism is provided on the H-shaped slide (501). The movable seat (5) is controlled by the driving mechanism to move in a directional manner on the processing table (1). A demolding component is provided on the H-shaped slide (501). A raw material tank (10) is also provided on the processing table (1). The raw material tank (10) is driven to move along the arrangement direction of the lower mold (6) by the linear moving component (9) on the processing stand (2).

2. The foaming equipment for insole processing according to claim 1, characterized in that: The drive mechanism includes a motor (502) installed in an H-shaped slide (501), and a gear (503) is fixedly mounted on the output end of the motor (502). A rack (7) is provided on the surface of the processing table (1) along the moving direction of the moving seat (5), and the gear (503) meshes with the rack (7).

3. The foaming equipment for insole processing according to claim 1, characterized in that: The linear motion assembly (9) includes a second motor (901), a screw (902), and a nut (903). The second motor (901) is fixedly mounted on the processing stand (2). The screw (902) is fixed to the output end of the second motor (901) and driven to rotate by it. The screw (902) is parallel to the arrangement direction of the moving seat (5). The nut (903) is threaded on the screw (902) and is fixedly connected to the fixing ring on the raw material tank (10). A slide rod (904) is arranged parallel to the screw (902) on the processing stand (2). A sliding sleeve (905) is slidably mounted on the slide rod (904) and is connected to the nut (903).

4. The foaming equipment for insole processing according to claim 1, characterized in that: The lower mold (6) has a through hole (18) in its cavity. A push block (17) is longitudinally slidably fitted inside the hole (18) via a push rod (16). The shape and size of the push block (17) match the shape and size of the hole (18). A magnetic block (15) is fixed at the lower end of the push rod (16). An electromagnet (14) is embedded in the horizontal plate of the H-shaped slide (501). When the electromagnet (14) is energized, a repulsive force is generated between it and the magnetic block (15).

5. A foaming device for insole processing according to claim 1 or 2, characterized in that: A contact sensor (13) is installed in front of the movable seat (5), and a baffle (12) is provided at the front end of the processing table (1), with the contact sensor (13) located within the height range of the baffle (12).

6. The foaming equipment for insole processing according to claim 2, characterized in that: The surface of the processing table (1) is provided with a slide rail (8) along the moving direction of the moving seat (5), and the moving seat (5) is slidably mounted on the slide rail (8) for directional movement.

7. The foaming equipment for insole processing according to claim 1, characterized in that: A cooling fan (11) is installed on the processing stand (2).

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