Rubber injection molding machine provided with lower injection exchange molding die

Abstract

The utility model relates to a rubber injection molding machine provided with a lower injection exchange molding die, which comprises a main machine structure, an operation platform and an oil pressure control device, the main machine structure comprises a main frame body, an upper die cooling structure, an upper molding die structure and a lower injection molding die structure, and the lower injection molding die structure comprises a bottom die control oil cylinder body, a bottom die control main frame, a bottom die injection cavity, a bottom die connecting seat body structure, a bottom die driving motor assembly for driving and controlling the bottom die connecting seat body structure, and a bottom die control air cylinder group. The upper die cooling structure of the equipment effectively cools the upper die and accurately performs alignment adjustment on the upper die; therefore, accurate mold matching with the bottom mold is realized, and the injection precision of products is improved. The arranged lower injection molding mold structure and the demolding and discharging mechanism ensure accurate mold matching movement of the bottom mold, and meanwhile, the mold replacing and part taking process is convenient and flexible. And the mold has the advantages of small occupied space of the whole machine combination and small height difference of the mold cavity.

Description

Technical Field

[0001] This utility model relates to the field of rubber injection molding machines, and in particular to a rubber injection molding machine with a lower injection exchange molding die. Background Technology

[0002] A rubber injection molding machine is a primary molding device used to produce various shapes of rubber products from thermosetting rubber using rubber molds. During operation, the machine rolls strip-shaped rubber raw material into a storage cylinder for plasticization, then injects it into an injection barrel. The injection unit then injects the rubber from the injection barrel into a rubber mold, where it is vulcanized and molded to produce rubber products of different shapes. Patent number CN115923041B discloses a silicone bottom injection molding device, which includes a frame, a fixed mold, a moving mold, and an injection unit. The frame serves as a support and mounting carrier. The fixed mold is fixed to the frame, with its molding surface facing upwards and a nozzle on the molding surface. The moving mold slides vertically above the fixed mold, and an injection molding cavity is formed between the lower surface of the moving mold and the upper surface of the fixed mold. The injection unit, mounted on the frame, injects the raw material into the injection molding cavity, and its outlet end is connected to the nozzle via a flow channel.

[0003] Existing bottom injection equipment for bottom rubber materials has the following drawbacks: it occupies a large overall space; during injection molding, molten material is injected into the cavity horizontally from the fixed mold end; when the width of the part is large or multiple products are injected at the same time, the required dimensions of the cavity and the molding die are limited, which affects the quality of the part; and it is inconvenient to demold and remove the part. Utility Model Content

[0004] The purpose of this invention is to provide a rubber injection molding machine with a bottom injection exchange molding die, which solves the problems of inconvenient use and operation of existing bottom injection equipment.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a rubber injection molding machine with a lower injection exchange molding die, including a main structure, an operating platform, and a hydraulic control device. The main structure includes a main frame, an upper mold cooling structure on the upper part of the main frame, an upper molding die structure below the upper mold cooling structure, and a lower injection molding die structure in the main frame perpendicular to the upper molding die structure. The lower injection molding die structure includes a bottom mold control cylinder body at the bottom of the main frame, a bottom mold control main frame above the bottom mold control cylinder body, a bottom mold injection cavity above the bottom mold control main frame, a bottom mold connecting seat structure above the bottom mold injection cavity, a bottom mold drive motor assembly for driving and controlling the bottom mold connecting seat structure, and a bottom mold control cylinder group.

[0006] The upper forming mold structure includes an upper mold connecting seat body connected to the upper forming mold, an upper mold connecting rod located on the upper part of the upper mold connecting seat body, an upper limiting slide rail located on the outside of the main frame body and connected to the upper mold connecting rod, a control servo motor located on the upper part of the upper limiting slide rail, and a cooling connecting cavity located on the upper part of the upper mold connecting seat body, the cooling connecting cavity being connected to the upper mold cooling structure.

[0007] The bottom mold connecting seat structure includes a bottom mold bottom connecting seat located on the upper part of the bottom mold injection cavity, bottom mold side locking seat assemblies located on both sides of the upper part of the bottom mold bottom connecting seat, and a movable limiting seat corresponding to each bottom mold side locking seat assembly.

[0008] The bottom mold control cylinder assembly includes a bottom mold main control limit cylinder mounted on the bottom mold control cylinder body and a bottom mold limit cylinder mounted between the bottom mold injection cavity and the movable limit seat.

[0009] The upper mold cooling structure includes an upper cooling cavity connected to the cooling connection cavity, a circulating liquid connection end located outside the upper cooling cavity, and a control pump located in the upper cooling cavity.

[0010] The demolding and unloading mechanism is connected to the rear end of the main frame.

[0011] The demolding and unloading mechanism includes a connecting base frame connected to the main frame, a transmission platform body located on the upper part of the connecting base frame, a control transmission inner platform located in the transmission platform body, and a demolding drive motor located on the outside of the control transmission platform body.

[0012] The beneficial effects of this invention are as follows: The upper mold cooling structure of the equipment effectively cools the upper mold and provides precise alignment adjustment, ensuring accurate alignment with the bottom mold and improving the injection precision of the product. The lower injection molding mold structure and demolding / material unloading mechanism ensure precise mold alignment and movement of the bottom mold, while also providing convenience and flexibility during mold changing and part removal. Furthermore, it boasts the advantages of a small overall footprint and minimal height difference between the cavities.

[0013] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 for Figure 1 Top view.

[0016] Figure 3 for Figure 1 Side view.

[0017] Figure 4 for Figure 2 A partial sectional view along direction A.

[0018] In the diagram: 1. Operating platform, 2. Hydraulic control equipment, 3. Main frame, 4. Bottom mold control cylinder, 5. Bottom mold control main frame, 6. Bottom mold injection cavity, 7. Drive motor assembly, 8. Upper mold connecting seat, 9. Upper mold connecting rod, 10. Control servo motor, 11. Cooling connection cavity, 12. Upper cooling cavity, 13. Circulating fluid connection end, 14. Control pump, 15. Bottom mold bottom connecting bracket, 16. Bottom mold side locking seat assembly, 17. Moving limit seat, 18. Bottom mold main control limit cylinder, 19. Bottom mold limit cylinder, 20. Connecting base frame, 21. Transmission platform, 22. Control transmission inner platform, 23. Drive motor, 24. Control servo motor, 25. Outer limit frame, 26. Protective layer. Detailed Implementation

[0019] The terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end" used in the application text to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Example 1, such as Figure 1-4As shown, a rubber injection molding machine with a bottom injection exchange mold includes a main structure, an operating platform 1, and a hydraulic control device 2. The main structure includes a main frame 3 with an outer limit frame 25 and a protective layer 26, an upper mold cooling structure on the upper part of the main frame, an upper molding mold structure below the upper mold cooling structure, and a lower injection molding mold structure perpendicular to the upper molding mold structure in the main frame. The lower injection molding mold structure includes a bottom mold control cylinder 4 at the bottom of the main frame, a bottom mold control main frame 5 above the bottom mold control cylinder 5, a bottom mold injection cavity 6 above the bottom mold control main frame, a bottom mold connecting seat structure above the bottom mold injection cavity, a bottom mold drive motor assembly 7 driving and controlling the bottom mold connecting seat structure, and a bottom mold control cylinder group. The hydraulic control device 2 is connected to the bottom mold injection cavity 6 and inputs injection material through the material control structure in the operating platform 1.

[0022] The upper forming mold structure includes an upper mold connecting seat 8 connected to the upper forming mold, an upper mold connecting rod 9 located on the upper part of the upper mold connecting seat, an upper limiting slide rail 10 located on the outside of the main frame and connected to the upper mold connecting rod, a control servo motor 24 located on the upper part of the upper limiting slide rail, and a cooling connecting cavity 11 located on the upper part of the upper mold connecting seat, the cooling connecting cavity being connected to the upper mold cooling structure. The upper mold cooling structure includes an upper cooling cavity 12 connected to the cooling connecting cavity, a circulating fluid connecting end 13 located on the outside of the upper cooling cavity, and a control pump body 14 located in the upper cooling cavity.

[0023] The bottom mold connecting seat structure includes a bottom mold bottom connecting seat 15 located on the upper part of the bottom mold injection cavity, bottom mold side locking seat groups 16 located on both sides of the upper part of the bottom mold bottom connecting seat, and a movable limiting seat 17 corresponding to each bottom mold side locking seat group.

[0024] The bottom mold control cylinder assembly includes a bottom mold main control limit cylinder 18 located on the bottom mold control cylinder body and a bottom mold limit cylinder 19 located between the bottom mold injection cavity and the moving limit seat.

[0025] The demolding and unloading mechanism is connected to the rear end of the main frame.

[0026] The demolding and unloading mechanism includes a connecting base frame 20 connected to the main frame, a transmission platform 21 located on the upper part of the connecting base frame, a control transmission inner platform 22 located in the transmission platform, and a demolding drive motor 23 located on the outside of the control transmission platform.

[0027] The upper mold cooling structure of this equipment effectively cools the upper mold and ensures precise alignment with the bottom mold, improving injection accuracy. The lower injection molding mold structure and demolding / unloading mechanism ensure precise mold movement of the bottom mold, while also providing convenience and flexibility during mold changing and part removal. Furthermore, it boasts advantages such as a small overall footprint and minimal cavity height difference.

[0028] The above embodiments are merely descriptions of preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

[0029] The parts not covered in this utility model are the same as or can be implemented using existing technologies.

Claims

1. A rubber injection molding machine provided with a lower injection exchange forming mold, comprising a main machine structure, an operation platform, and an oil pressure control device, characterized in that: The host structure comprises a main frame, an upper mold cooling structure arranged at the upper part of the main frame, an upper forming mold structure arranged at the lower part of the upper mold cooling structure, and a lower injection forming mold structure arranged vertically with the upper forming mold structure in the main frame.

2. The rubber injection molding machine for setting a bottom shot transfer molding mold according to claim 1, characterized by: The upper forming mold structure comprises an upper mold connecting seat body connected with the upper forming mold, an upper mold connecting rod arranged at the upper part of the upper mold connecting seat body, an upper limit sliding rail arranged outside the main frame and connected with the upper mold connecting rod, a control servo motor arranged at the upper part of the upper limit sliding rail, and a cooling connecting cavity arranged at the upper part of the upper mold connecting seat body, which is connected with the upper mold cooling structure.

3. The rubber injection molding machine for setting a bottom shot transfer molding mold according to claim 1, wherein: The bottom mold connecting seat structure comprises a bottom mold bottom connecting clamping seat arranged at the upper part of the bottom mold injection cavity, a bottom mold side surface locking seat group arranged at the upper part of the bottom mold bottom connecting clamping seat, and a moving limiting seat arranged corresponding to each bottom mold side surface locking seat group.

4. The rubber injection molding machine for setting a bottom shot transfer molding mold according to claim 1, wherein: The bottom mold control cylinder group comprises a bottom mold main control limiting cylinder arranged on the bottom mold control oil cylinder body, and a bottom mold limiting cylinder arranged between the bottom mold injection cavity and the moving limiting seat.

5. The rubber injection molding machine for setting a bottom shot transfer molding mold according to claim 2, wherein: The upper mold cooling structure comprises an upper cooling cavity connected with the cooling connecting cavity, a circulating liquid connecting end arranged outside the upper cooling cavity, and a control pump body arranged in the upper cooling cavity.

6. The rubber injection molding machine for setting a bottom shot transfer molding mold according to claim 1, wherein: The rear end of the main frame is connected with a demolding and discharging mechanism.

7. The rubber injection molding machine for setting a bottom shot transfer molding mold according to claim 6, wherein: The demolding and discharging mechanism comprises a connecting base connected with the main frame, a transmission table body arranged at the upper part of the connecting base, a control transmission inner table arranged in the transmission table body, and a demolding driving motor arranged outside the control transmission table body.

Images