A fine injection mold structure

Abstract

The utility model relates to injection mold technical field especially relates to a kind of fine injection mold structure.The technical scheme of it includes: lower mould, the top of lower mould is clamped with upper mould, the inside of lower mould is provided with two movable grooves, the inside of two movable grooves is slidably installed with support block, the bottom of two support blocks is fixedly connected with an activity board, the bottom of activity board is threadedly connected with the threaded column extending below lower mould, the bottom of threaded column is fixedly installed with support rod, the bottom of support rod is slidably installed with movable sleeve, the top of each support block is movably installed with two support plates, the bottom of upper mould is fixedly installed with two fixed frame.The utility model is provided with threaded column, support rod, movable sleeve, support block, support plate and the mutual cooperation between fixed frame, so that installation is more convenient, can make upper mould move down and closely adhere to lower mould, and the precision of injection molding can be improved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a refined injection mold structure. Background Technology

[0002] Injection molds are the "steel symphony" of the plastics industry. They inject molten plastic into a precision-machined cavity under high temperature and pressure, and after cooling, a product of a specific shape is obtained. In the process of injection molding plastic workpieces, a sophisticated injection mold structure is required.

[0003] The existing technology has the following problems:

[0004] When injecting molten plastic into a mold at high temperature and pressure, it is not convenient to fix the upper and lower molds. The high temperature and pressure of the molten plastic can easily push the molds apart, affecting the injection accuracy. At the same time, it is not convenient to install and disassemble. Utility Model Content

[0005] The purpose of this invention is to provide a refined injection mold structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a refined injection mold structure, including a lower mold, an upper mold being snapped onto the top of the lower mold, two movable slots being opened inside the lower mold, support blocks being slidably installed on the inner sides of the two movable slots, a movable plate being fixedly connected to the bottom of the two support blocks, a threaded post extending below the lower mold being threadedly connected to the bottom of the movable plate, a support rod being fixedly installed at the bottom of the threaded post, a movable sleeve being slidably installed at the bottom of the support rod, two support plates being movably installed on the top of each support block, two fixing brackets being fixedly installed on the bottom of the upper mold, each fixing bracket extending into the inner side of a movable slot and located between two support plates, fixing teeth being fixedly installed on the inner side of every two support plates, and every two fixing teeth being located on the top of one fixing bracket.

[0007] Preferably, the lower mold and the upper mold have mold grooves on their inner sides, and the upper mold has an injection groove inside, with one end of the injection groove communicating with the mold groove.

[0008] Preferably, a threaded sleeve is fixedly installed on the inner side of the movable plate, and the top of the threaded post extends to the inner side of the threaded sleeve and is threadedly connected to the threaded sleeve.

[0009] Preferably, a fixing bolt is threaded on the front side of the movable sleeve, the support rod is fixed to the movable sleeve by the fixing bolt, and two mounting seats are fixedly installed at the bottom of the movable sleeve.

[0010] Preferably, each of the fixed frames is fixedly connected to the upper mold by a fixed block, and a thrust spring is fixedly installed between every two support plates.

[0011] Preferably, each of the movable slots has an inclined slope on both sides, and the inclined slope corresponds to the support plate.

[0012] Preferably, the top of the lower mold is fixedly equipped with multiple positioning posts, and the bottom of the upper mold is provided with multiple positioning holes, with each positioning post extending into the inside of a positioning hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By employing a combination of threaded columns, support rods, movable sleeves, support blocks, support plates, and a fixed frame, the threaded columns are screwed into the inner side of the threaded sleeves to facilitate the installation and fixation of the support rods. The bottom of the movable sleeve is then connected and fixed to an external telescopic mechanism, simplifying installation. The external telescopic mechanism allows the movable sleeve to move up and down, while the support rods drive the movable plate to move up and down synchronously. Moving the movable plate upwards simultaneously moves the two support blocks upwards. A thrust spring pushes the two support plates outwards, causing the fixed teeth to flip and separate from the fixed frame, facilitating the upward movement of the upper mold and its separation from the lower mold. Moving the upper mold downwards to fit against the lower mold allows the fixed frame to extend into the movable groove. The movable plate drives the support blocks downwards, simultaneously moving the support plates downwards, allowing the support plates to automatically flip inwards and reset. This causes the support plates to drive the fixed teeth to extend to the top of the fixed frame. The support blocks drive the support plates and fixed teeth downwards, applying downward pressure to the fixed frame, allowing the upper mold to move downwards and fit tightly against the lower mold, thus improving injection molding accuracy. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the front sectional view of the present invention;

[0017] Figure 3 This is a side view sectional view of the present invention.

[0018] Figure 4 This is a schematic diagram of the main sectional view of the lower mold of this utility model;

[0019] Figure 5 This is a side view sectional view of the movable sleeve structure of this utility model;

[0020] Figure 6This is a schematic diagram of the front view sectional structure of the upper mold of this utility model.

[0021] In the diagram: 1. Lower mold; 2. Upper mold; 3. Mold groove; 4. Injection groove; 5. Movable plate; 6. Threaded sleeve; 7. Threaded post; 8. Support rod; 9. Movable sleeve; 10. Fixing bolt; 11. Mounting base; 12. Fixing block; 13. Support block; 14. Support plate; 15. Movable groove; 16. Thrust spring; 17. Fixing tooth; 18. Fixing frame; 19. Inclined slope; 20. Positioning post; 21. Positioning hole. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] This utility model provides, for example Figure 1-6 The refined injection mold structure shown includes a lower mold 1, an upper mold 2 snapped onto the top of the lower mold 1, two movable slots 15 are opened inside the lower mold 1, support blocks 13 are slidably installed on the inner side of each of the two movable slots 15, a movable plate 5 is fixedly connected to the bottom of each of the two support blocks 13, a threaded post 7 extending below the lower mold 1 is threadedly connected to the bottom of the movable plate 5, a support rod 8 is fixedly installed at the bottom of the threaded post 7, a movable sleeve 9 is slidably installed at the bottom of the support rod 8, two support plates 14 are movably installed on the top of each support block 13, two fixing brackets 18 are fixedly installed on the bottom of the upper mold 2, each fixing bracket 18 extends into the inner side of a movable slot 15 and is located between the two support plates 14, fixing teeth 17 are fixedly installed on the inner side of each pair of support plates 14, and each pair of fixing teeth 17 is located on the top of a fixing bracket 18;

[0024] The lower mold 1 and the upper mold 2 have mold grooves 3 on their inner sides, and the upper mold 2 has an injection groove 4 inside, with one end of the injection groove 4 connected to the mold groove 3.

[0025] A threaded sleeve 6 is fixedly installed on the inner side of the movable plate 5, and the top of the threaded column 7 extends to the inner side of the threaded sleeve 6 and is threadedly connected to the threaded sleeve 6.

[0026] The front side of the movable sleeve 9 is threaded with a fixing bolt 10, and the support rod 8 is fixed to the movable sleeve 9 by the fixing bolt 10. Two mounting seats 11 are fixedly installed at the bottom of the movable sleeve 9.

[0027] Each fixed frame 18 is fixedly connected to the upper mold 2 by a fixed block 12, and a thrust spring 16 is fixedly installed between every two support plates 14;

[0028] Each movable slot 15 has an inclined slope 19 on both sides, and the inclined slope 19 corresponds to the support plate 14.

[0029] Multiple positioning posts 20 are fixedly installed on the top of the lower mold 1, and multiple positioning holes 21 are opened on the bottom of the upper mold 2, with each positioning post 20 extending into the inside of a positioning hole 21.

[0030] The working principle of the refined injection mold structure based on the embodiment is as follows: by screwing the threaded column 7 to the inside of the threaded sleeve 6, it is convenient to install and fix the support rod 8 and the movable plate 5. Then, the bottom of the movable sleeve 9 is connected and fixed to the external telescopic mechanism by using the mounting seat 11. The length between the movable sleeve 9 and the support rod 8 can be adjusted by sliding the movable sleeve 9 and the support rod 8. By rotating the fixing bolt 10, the support rod 8 can be squeezed, which is convenient to fix the movable sleeve 9 and the support rod 8, making the installation and fixing relatively simple.

[0031] The movable sleeve 9 can be moved up and down by the external telescopic mechanism. The movable plate 5 can be moved up and down synchronously by the support rod 8. By moving the movable plate 5 upward, the two support blocks 13 can be moved upward along the movable groove 15, and the support plate 14 can be moved upward. By using the pushing action of the thrust spring 16, the two support plates 14 can be pushed to flip outward, so that the support plates 14 flip and fit with the inclined slope 19. This can drive the fixed tooth 17 to flip and separate from the fixed frame 18, making it easier to move the upper mold 2 upward and separate it from the lower mold 1.

[0032] By moving the upper mold 2 downwards to fit with the lower mold 1, the positioning pin 20 is inserted into the positioning hole 21, which can position the upper mold 2 and the lower mold 1. At the same time, the fixed frame 18 extends to the inside of the movable groove 15. By moving the movable plate 5 downwards, the support block 13 can be moved downwards, and the support plate 14 can be moved downwards simultaneously. The support plate 14 can be automatically flipped inwards to reset, and the support plate 14 can drive the fixing tooth 17 to extend to the top of the fixed frame 18. By moving the support plate 14 and the fixing tooth 17 downwards through the support block 13, the fixing tooth 17 can apply downward pressure to the fixed frame 18, which can make the upper mold 2 move downwards and fit tightly with the lower mold 1, thereby improving the injection molding accuracy.

[0033] Molten plastic is injected into the mold groove 3 at high temperature and pressure through the injection groove 4. The mold groove 3 is used to shape the molten plastic, which facilitates the precision injection molding operation of the plastic workpiece.

[0034] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A refined injection mold structure, comprising a lower mold (1), characterized in that: The upper mold (2) is snapped onto the top of the lower mold (1). The lower mold (1) has two movable slots (15) inside. Support blocks (13) are slidably installed on the inner side of each of the two movable slots (15). A movable plate (5) is fixedly connected to the bottom of each of the two support blocks (13). A threaded post (7) extending below the lower mold (1) is threadedly connected to the bottom of the movable plate (5). A support rod (8) is fixedly installed at the bottom of the threaded post (7). A movable sleeve (9) is slidably installed at the bottom of the support rod (8). Two support plates (14) are movably installed on the top of each support block (13). Two fixed frames (18) are fixedly installed at the bottom of the upper mold (2). Each fixed frame (18) extends into the inner side of a movable slot (15) and is located between two support plates (14). Fixed teeth (17) are fixedly installed on the inner side of each pair of support plates (14). Each pair of fixed teeth (17) is located on the top of a fixed frame (18).

2. The refined injection mold structure according to claim 1, characterized in that: The lower mold (1) and the upper mold (2) have mold grooves (3) on their inner sides, and the upper mold (2) has an injection groove (4) inside. One end of the injection groove (4) is connected to the mold groove (3).

3. The refined injection mold structure according to claim 1, characterized in that: A threaded sleeve (6) is fixedly installed on the inner side of the movable plate (5), and the top of the threaded column (7) extends to the inner side of the threaded sleeve (6) and is threadedly connected to the threaded sleeve (6).

4. The refined injection mold structure according to claim 1, characterized in that: The front side of the movable sleeve (9) is threaded with a fixing bolt (10), and the support rod (8) is fixed to the movable sleeve (9) by the fixing bolt (10). Two mounting seats (11) are fixedly installed at the bottom of the movable sleeve (9).

5. The refined injection mold structure according to claim 1, characterized in that: Each of the fixed frames (18) is fixedly connected to the upper mold (2) by a fixed block (12), and a thrust spring (16) is fixedly installed between every two support plates (14).

6. The refined injection mold structure according to claim 1, characterized in that: Each of the movable slots (15) has an inclined slope (19) on both sides, and the inclined slope (19) corresponds to the support plate (14).

7. The refined injection mold structure according to claim 1, characterized in that: The lower mold (1) is fixedly installed with multiple positioning posts (20) on its top, and the upper mold (2) is provided with multiple positioning holes (21) on its bottom, with each positioning post (20) extending into the inside of a positioning hole (21).

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