An injection molding mechanism for shoe material production

Abstract

This utility model relates to the field of shoe material production technology and discloses an injection molding mechanism for shoe material production, including a housing and a pressing seat. The housing is connected to the pressing seat via a drive mechanism. Multiple positioning mechanisms are provided on the outside of the pressing seat, and a docking mechanism is provided inside the housing. The docking mechanism includes a support seat, the bottom of which is fixedly connected to the inside of the housing. A retaining frame is fixedly connected to the top of the support seat, and a lower mold is slidably connected inside the retaining frame. A limiting frame is rotatably connected to the outer top of the retaining frame. In this utility model, the retaining frame initially limits the bottom of the lower mold, the limiting frame presses down on the lower mold from the top, and a stop plate, along with a push rod and a support spring, abuts against the lower mold from the side. The limiting rod and locking spring lock the position of the stop plate, thereby preventing mold offset during mold closing and ensuring positional accuracy during mold closing, thus reducing the product defect rate.

Description

Technical Field

[0001] This utility model relates to the field of shoe material production technology, and in particular to an injection molding mechanism for shoe material production. Background Technology

[0002] In the footwear industry, the production process of shoe materials (such as soles, uppers, and heels) directly affects the quality, comfort, and production efficiency of shoes. Among these, injection molding technology has become one of the core processes in shoe material production due to its advantages such as high production efficiency, good product consistency, and the ability to mold complex structures. The injection molding machine is the key equipment for realizing this technology.

[0003] A typical injection molding machine for shoe material production consists of a drive mechanism, an installation mechanism, and upper and lower molds. The drive mechanism provides power through hydraulic means to push the upper and lower molds to form a cavity. The installation mechanism is responsible for fixing the upper and lower molds and providing support for the molds. After the upper and lower molds are closed, a cavity that conforms to the shape of the shoe material is formed. The molten raw material cools and solidifies in the cavity. After the mold is opened, the molded shoe material parts can be taken out, realizing the shaping and processing of the shoe material.

[0004] In existing technologies, the lower mold of some devices is not securely fixed to the mounting mechanism. During the mold closing process, due to the pressure applied by the drive mechanism and the impact force when the raw material is injected, the lower mold is prone to horizontal displacement. This displacement will cause misalignment between the upper and lower molds, which will lead to a series of quality problems and waste of raw materials. At the same time, the molded shoe material parts will have dimensional deviations and will not meet production standards. These problems directly affect the pass rate of shoe material products, increase production costs, reduce production efficiency, and make it difficult to meet the needs of large-scale and high-quality shoe material production. Therefore, an injection molding mechanism for shoe material production is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an injection molding mechanism for shoe material production, aiming to improve the problem that the traditional lower mold is not firmly installed and fixed in the prior art, and is prone to horizontal displacement due to force during the mold closing process, resulting in misalignment of the upper and lower molds, which in turn leads to quality problems such as injection material overflow and shoe material molding size deviation, affecting the product qualification rate.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An injection molding mechanism for shoe material production includes an equipment housing and a pressing seat. The equipment housing is connected to the pressing seat via a drive mechanism. Multiple positioning mechanisms are provided on the outside of the pressing seat, and a docking mechanism is provided inside the equipment housing.

[0008] The docking mechanism includes a support base, the bottom of which is fixedly connected to the inside of the equipment housing. A retaining frame is fixedly connected to the top of the support base. A lower mold is slidably connected inside the retaining frame. A limiting frame is rotatably connected to the outer top of the retaining frame. A stop plate is rotatably connected to the other end of the limiting frame. A push rod is slidably connected inside the stop plate. A support spring is sleeved on the outside of the push rod. A limiting rod is slidably connected to the outer top of the support base. A locking spring is sleeved on the outside of the limiting rod. A heating component is installed inside the support base.

[0009] As a further description of the above technical solution:

[0010] The positioning mechanism includes a mounting plate, which is fixedly connected to the outside of the pressing seat. An upper mold is slidably connected to the inner side of the mounting plate. A locking plate is threadedly connected to the outside of the mounting plate. A pressing seat is slidably connected to the outside of the locking plate. Fixed pins are slidably connected to both sides of the outside of the mounting plate. A compression spring is sleeved inside the fixed pin.

[0011] As a further description of the above technical solution:

[0012] A base plate is fixedly connected to the outer bottom side of the mounting plate, and a support pin is slidably connected inside the base plate. A lifting spring is sleeved inside the support pin.

[0013] As a further description of the above technical solution:

[0014] The drive mechanism includes two hydraulic push rods, both of which are fixedly connected to the top of the equipment housing. The output ends of both hydraulic push rods are fixedly connected to control seats. The interiors of both control seats are slidably connected to slide rods. The output ends of both control seats are fixedly connected to rotating rods. An injection pipe is fixedly connected to the top of the equipment housing. A card interface is fixedly connected to the exterior of the pressing seat.

[0015] As a further description of the above technical solution:

[0016] The top of the card interface is snapped into the interface of the injection tube, the outside of the rotating rod is fixedly connected to the inside of the pressing seat, and the outside of the sliding rod is fixedly connected to the inside of the device housing.

[0017] As a further description of the above technical solution:

[0018] The heating assembly includes a heating coil, the heating coil being fixedly connected to the inside of the support base, and heaters being fixedly connected to both ends of the heating coil, the heaters being fixedly connected to the inside of the equipment housing.

[0019] As a further description of the above technical solution:

[0020] The lifting spring supports the inside of the base plate, so that the top of the support pin supports the bottom of the outside of the upper mold. The compression spring supports the inside of both sides of the mounting plate, so that the fixing pin is engaged with the outside of both sides of the upper mold. The bottom of the extrusion seat supports the top of the outside of the upper mold. The extrusion seat is threaded to the outside of the mounting plate, and the extrusion seat is fixedly connected to the outside of the mounting plate.

[0021] As a further description of the above technical solution:

[0022] By rotating the limiting frame outside the card frame, the outside of the limiting frame is supported on the top of the card frame and on the top of the lower mold. Then, by rotating the abutment, the support spring is supported on the outside of the lower mold. Under the support of the locking spring, the limiting rod is engaged with the inside of the outside of the abutment.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the bottom of the lower mold is initially limited by the clamping frame, the limiting frame presses the lower mold from the top, the abutment plate, together with the push rod and the support spring, abuts the lower mold from the side, the limiting rod and the locking spring lock the position of the abutment plate, and the multi-directional constraint forms a stable fixation, ensuring the correct position of the lower mold, thereby preventing the mold from shifting during mold closing and causing defects, ensuring the positional accuracy during mold closing, and reducing the product defect rate.

[0025] 2. In this utility model, the fixed pin is inserted into the positioning holes on both sides of the upper mold under the action of the compression spring to limit the horizontal position. The support pin is supported by the lifting spring to lift the upper mold from the bottom. The extrusion seat and the locking plate press from the top. The fixing can be released by loosening the locking plate, which is convenient for adjustment and disassembly. It is suitable for the installation and disassembly of different molds, so as to solve the problems of low positioning accuracy and difficult adjustment during traditional mold installation, cumbersome and time-consuming operation during disassembly, and difficulty in adapting to different mold specifications. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of an injection molding mechanism for shoe material production according to the present invention.

[0027] Figure 2 This is a schematic diagram of the equipment housing of an injection molding mechanism for shoe material production proposed in this utility model.

[0028] Figure 3 This is a schematic diagram of the support base for an injection molding mechanism used in shoe material production according to this utility model.

[0029] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0030] Figure 5 This is a schematic diagram of the pressing seat of an injection molding mechanism for shoe material production according to this utility model;

[0031] Figure 6 for Figure 5 Enlarged view of point B in the middle.

[0032] Legend:

[0033] 1. Equipment housing; 2. Drive mechanism; 21. Hydraulic push rod; 22. Control seat; 23. Slide rod; 24. Rotating rod; 25. Injection pipe; 26. Snap-fit ​​interface; 3. Pressing seat; 4. Docking mechanism; 41. Support seat; 42. Snap-fit ​​frame; 43. Limiting frame; 44. Lower mold; 45. Backing plate; 46. Push rod; 47. Support spring; 48. Limiting rod; 49. Locking spring; 5. Positioning mechanism; 51. Mounting plate; 52. Upper mold; 53. Extrusion seat; 54. Locking plate; 55. Positioning pin; 56. Compression spring; 57. Base plate; 58. Support pin; 59. Lifting spring; 6. Heating assembly; 61. Heating coil; 62. Heater. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figure 1 , Figure 3 and Figure 4 The present invention provides an embodiment of an injection molding mechanism for shoe material production, comprising a housing 1 and a pressing seat 3. The housing 1 provides a stable mounting base for the entire device and can protect the internal structure from external interference. The housing 1 is connected to the pressing seat 3 through a drive mechanism 2. The drive mechanism 2 can drive the pressing seat 3 to move up and down precisely to realize the mold closing and opening actions during the injection molding process. Multiple positioning mechanisms 5 are provided on the outside of the pressing seat 3. The positioning mechanisms 5 can accurately fix and position the mold installed on the pressing seat 3 to ensure accurate injection position. The housing 1 is provided with a docking mechanism 4. The docking mechanism 4 can realize the stable docking of the lower mold 44 with the housing 1 and prevent displacement during mold closing, ensuring the sealing of the mold during injection molding.

[0036] The docking mechanism 4 includes a support base 41. The bottom of the support base 41 is fixedly connected to the inside of the equipment housing 1, providing load-bearing capacity for the entire docking mechanism 4 and distributing the pressure from the lower mold 44. A retaining frame 42 is fixedly connected to the top of the support base 41, which can initially limit the bottom of the lower mold 44 to prevent it from sliding freely in the horizontal direction. The lower mold 44 is slidably connected inside the retaining frame 42, facilitating the installation and replacement of the lower mold 44 while ensuring its fit with the retaining frame 42. A limiting frame 43 is rotatably connected to the top outer side of the retaining frame 42, which can be rotated to adjust its position and press and fix the top edge of the lower mold 44. A stop plate 45 is rotatably connected to the other end of the limiting frame 43, enhancing the constraint effect on the lower mold 44. An internal sliding connection is provided with a push rod 46, which can tightly press against the side of the lower mold 44 under the action of the support spring 47, improving the tightness of the fixation. The support spring 47 is sleeved on the outside of the push rod 46 to provide continuous thrust to the push rod 46 and ensure that it always keeps in contact with the lower mold 44. A limiting rod 48 is slidably connected to the top outer side of the support base 41, which can be inserted into the back plate 45 to lock the position of the back plate 45 and prevent it from loosening during operation. A locking spring 49 is sleeved on the outside of the limiting rod 48, which can press the limiting rod 48 tightly against the inside of the back plate 45 to ensure the stability of the locked state. A heating component 6 is installed inside the support base 41, which can uniformly heat the lower mold 44, so that the molten material can flow and form better in the mold.

[0037] The heating component 6 includes a heating coil 61, which is externally fixedly connected to the inside of the support base 41. It can evenly distribute heat and ensure that the temperature of each area of ​​the lower mold 44 is consistent. Heaters 62 are fixedly connected to both ends of the heating coil 61, which can provide a stable power input to the heating coil 61 and accurately control the heating temperature. The heaters 62 are externally fixedly connected to the inside of the equipment housing 1 to avoid shaking during operation.

[0038] By rotating the limiting frame 43 outside the card frame 42, the limiting frame 43 is supported on the top of the card frame 42 and on the top of the lower mold 44, which can effectively press the lower mold 44 from above. Then, by rotating the abutment plate 45, the support spring 47 is supported on the outside of the lower mold 44, which can further reinforce the lower mold 44 from the side and prevent it from shifting when the mold is closed. With the support of the locking spring 49, the limiting rod 48 is engaged with the inner side of the abutment plate 45, which can firmly fix the position of the abutment plate 45 and ensure the stability of the entire docking mechanism 4.

[0039] Reference Figure 1 , Figure 5 and Figure 6The positioning mechanism 5 includes a mounting plate 51, which is externally fixedly connected to the outside of the pressing seat 3, providing a stable platform for the installation of the upper mold 52 and moving synchronously with the pressing seat 3. The upper mold 52 is slidably connected to the inner side of the mounting plate 51, facilitating the quick installation and removal of the upper mold 52 and improving the efficiency of mold replacement. A locking plate 54 is threadedly connected to the outside of the mounting plate 51, and its position can be adjusted by rotation to apply pressure to the extrusion seat 53. The extrusion seat 53 is slidably connected to the outside of the locking plate 54, and can press the top of the upper mold 52 tightly under the push of the locking plate 54 to prevent it from moving up and down. Fixed pins 55 are slidably connected to both sides of the outside of the mounting plate 51, which can be used to lock the upper mold. Positioning holes on the side of the upper mold 52 enable precise horizontal positioning. A compression spring 56 is fitted inside the positioning pin 55 to provide continuous elastic force and ensure a tight fit with the positioning holes of the upper mold 52. A base plate 57 is fixedly connected to the outer bottom side of the mounting plate 51, which provides a mounting base for the support pin 58 and limits the range of movement of the support pin 58. The support pin 58 is slidably connected inside the base plate 57, which can push the upper mold 52 upward from the bottom and cooperate with the extrusion seat 53 to form a clamping and fixing in the vertical direction. The upper mold 52 is lifted upward during disassembly and the mold is replaced. A lifting spring 59 is fitted inside the support pin 58 to provide upward thrust for the support pin 58.

[0040] Supported inside the base plate 57 by the lifting spring 59, the top of the support pin 58 is supported on the outer bottom side of the upper mold 52, providing stable bottom support for the upper mold 52 and preventing it from sinking or shifting due to gravity. Supported inside the two sides of the mounting plate 51 by the compression spring 56, the fixing pin 55 is engaged with the outer sides of the upper mold 52, ensuring that the upper mold 52 will not shift in the horizontal direction and guaranteeing the positional accuracy when the mold is closed. The bottom of the extrusion seat 53 is supported on the outer top side of the upper mold 52. The extrusion seat 53 is threaded to the outside of the mounting plate 51, and the extrusion seat 53 is fixedly connected to the outside of the mounting plate 51. The locking force of the thread can firmly fix the upper mold 52 and prevent it from loosening during the movement of the pressing seat 3.

[0041] Reference Figure 1 , Figure 2 and Figure 5The drive mechanism 2 includes two hydraulic push rods 21, both of which are fixedly connected to the top of the equipment housing 1 to provide a stable driving force and ensure sufficient power for the movement of the pressing seat 3. The output ends of both hydraulic push rods 21 are fixedly connected to control seats 22, which can transmit the power of the hydraulic push rods 21 to the rotating rod 24 and slide outside the slide rod 23. The interiors of both control seats 22 are slidably connected to the slide rod 23, providing guidance for the movement of the control seats 22 and ensuring that they do not deviate during vertical movement. The output ends of both control seats 22 are fixedly connected to the rotating rod 24, which can transmit the power of the two control seats 22 to the pressing seat 3. The pressure seat rotates to change different upper molds 52. The top of the equipment housing 1 is fixedly connected to the injection pipe 25, which can stably transport molten shoe material raw materials and provide a material source for the injection molding process. The external of the pressure seat 3 is fixedly connected to the locking interface 26, which can accurately dock with the injection pipe 25 to ensure that the raw material can smoothly enter the mold cavity. The top of the locking interface 26 is locked to the interface of the injection pipe 25, which can achieve a sealed connection of the raw material conveying channel when the mold is closed to prevent raw material leakage. The external of the rotating rod 24 is fixedly connected to the inside of the pressure seat 3, and the external of the sliding rod 23 is fixedly connected to the inside of the equipment housing 1 to ensure the guiding accuracy of the control seat 22 when it slides.

[0042] Working principle: Before injection molding, the lower mold 44 is slid into the frame 42, the limiting frame 43 is rotated to support it on the top of the frame 42 and the lower mold 44, and then the abutment plate 45 is rotated so that the support spring 47 pushes the push rod 46 against the outside of the lower mold 44. At the same time, the locking spring 49 pushes the limiting rod 48 into the inside of the abutment plate 45 to complete the fixation. The lifting spring 59 pushes the support pin 58 to lift the bottom of the upper mold 52 from the bottom plate 57. The compression spring 56 pushes the fixing pin 55 to be inserted into the upper mold 52 from both sides of the mounting plate 51. Then, the locking plate 54 pushes the extrusion seat 53 to press the top of the upper mold 52 to complete the fixation.

[0043] During operation, two hydraulic push rods 21 drive the control seat 22 to move up and down along the slide rod 23. The control seat 22 drives the pressing seat 3 to move through the rotating rod 24 to realize mold closing and mold opening. The rotating rod 24 can also drive the pressing seat 3 to rotate and change different upper molds 52. When the mold is closed, the locking interface 26 is precisely connected with the injection pipe 25. The molten shoe material enters the mold cavity through the injection pipe 25 and the locking interface 26. The upper mold 52 is precisely connected with the lower mold 44 through the limiting frame 43 to ensure smooth injection of the material.

[0044] During the injection molding process, the heating component 6 works synchronously. The heater 62 provides power to the heating coil 61, and the heating coil 61 heats the lower mold 44 on the support base 41 evenly, so that the molten material flows and forms better in the mold.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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. An injection molding mechanism for shoe material production, comprising a housing (1) and a pressing seat (3), characterized in that: The device housing (1) is connected to the pressing seat (3) through the driving mechanism (2). Multiple positioning mechanisms (5) are provided on the outside of the pressing seat (3), and a docking mechanism (4) is provided inside the device housing (1). The docking mechanism (4) includes a support base (41), the bottom of which is fixedly connected to the inside of the equipment housing (1), a frame (42) is fixedly connected to the top of the support base (41), a lower mold (44) is slidably connected inside the frame (42), a limiting frame (43) is rotatably connected to the outer side of the top of the frame (42), a stop plate (45) is rotatably connected to the other end of the limiting frame (43), a push rod (46) is slidably connected inside the stop plate (45), a support spring (47) is sleeved on the outside of the push rod (46), a limiting rod (48) is slidably connected to the outer side of the top of the support base (41), a locking spring (49) is sleeved on the outside of the limiting rod (48), and a heating component (6) is installed inside the support base (41).

2. The injection molding mechanism for shoe material production according to claim 1, characterized in that: The positioning mechanism (5) includes a mounting plate (51), which is fixedly connected to the outside of the pressing seat (3). An upper mold (52) is slidably connected to the inner side of the mounting plate (51). A locking plate (54) is threadedly connected to the outside of the mounting plate (51). An extrusion seat (53) is slidably connected to the outside of the locking plate (54). Fixed pins (55) are slidably connected to both sides of the outside of the mounting plate (51). A compression spring (56) is sleeved inside the fixed pin (55).

3. The injection molding mechanism for shoe material production according to claim 2, characterized in that: The mounting plate (51) is fixedly connected to the bottom of the outer side of the base plate (57), and the base plate (57) is slidably connected to the inside of the base plate (57). The support pin (58) is fitted with a lifting spring (59) inside the support pin (58).

4. The injection molding mechanism for shoe material production according to claim 1, characterized in that: The drive mechanism (2) includes two hydraulic push rods (21). The exterior of the two hydraulic push rods (21) is fixedly connected to the top of the equipment housing (1). The output ends of the two hydraulic push rods (21) are fixedly connected to control seats (22). The interior of the two control seats (22) is slidably connected to slide rods (23). The output ends of the two control seats (22) are fixedly connected to rotating rods (24). The top of the equipment housing (1) is fixedly connected to an injection pipe (25). The exterior of the pressing seat (3) is fixedly connected to a card interface (26).

5. The injection molding mechanism for shoe material production according to claim 4, characterized in that: The top of the card interface (26) is snapped into the interface of the injection tube (25), the outside of the rotating rod (24) is fixedly connected to the inside of the pressing seat (3), and the outside of the sliding rod (23) is fixedly connected to the inside of the device housing (1).

6. The injection molding mechanism for shoe material production according to claim 1, characterized in that: The heating assembly (6) includes a heating coil (61), the heating coil (61) is fixedly connected to the outside of the support base (41), and heaters (62) are fixedly connected to both ends of the heating coil (61), and the heaters (62) are fixedly connected to the outside of the device housing (1).

7. The injection molding mechanism for shoe material production according to claim 3, characterized in that: The lifting spring (59) supports the inside of the base plate (57), so that the top of the support pin (58) supports the bottom of the upper mold (52) on the outside. The compression spring (56) supports the inside of both sides of the mounting plate (51), so that the fixing pin (55) is engaged with the outside of both sides of the upper mold (52). The bottom of the extrusion seat (53) supports the top of the upper mold (52) on the outside. The extrusion seat (53) is threaded to the outside of the mounting plate (51), and the extrusion seat (53) is fixedly connected to the outside of the mounting plate (51).

8. The injection molding mechanism for shoe material production according to claim 1, characterized in that: By rotating the limiting frame (43) outside the card frame (42), the outside of the limiting frame (43) is supported on the top of the card frame (42) and on the top of the lower mold (44). Then, by rotating the abutment plate (45), the support spring (47) is supported on the outside of the lower mold (44) under the support of the support spring (47). Under the support of the locking spring (49), the limiting rod (48) is engaged with the outside inner side of the abutment plate (45).

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