Mold structure with special-shaped twisted teeth in sliding block

Abstract

The utility model discloses a die structure with special-shaped twisted teeth in a sliding block. The die structure comprises a lower die and an upper die, the lower die comprises a lower die base and a lower die plate arranged on the lower die base, and a main body sliding block capable of laterally moving inwards and outwards is arranged on the lower die plate; the upper die is arranged right above the lower die in a manner of moving up and down, a shoveling machine is arranged on the upper die, and the shoveling machine drives the main body sliding block to slide towards the inner side; a motor is fixed on the outer side of the main body sliding block, and a rotating shaft capable of rotating back and forth is arranged on the main body sliding block. The motor and the rotating shaft are arranged on the main body sliding block, the driving gear is arranged on the rotating shaft, meanwhile, the tooth core sliding block is arranged on the special-shaped core in a sleeving mode in a matched mode, the driven gear is fixedly arranged on the tooth core sliding block in a sleeving mode, and the driven gear is in meshed connection with the driving gear, so that full-automatic tooth twisting production can be conducted, full-automatic mechanization is achieved, and the production efficiency is improved. The production efficiency is greatly improved, manpower and cost are saved, and convenience is brought to production operation.

Description

Technical Field

[0001] The utility model relates to the technology in the field of molds, in particular to a mold structure with a special-shaped screw thread in a slider. Background Art

[0002] With the rapid development of the plastic industry and the continuous improvement of general and engineering plastics in terms of strength, etc., the application scope of plastic products is also constantly expanding, and the usage of plastic products is also on the rise. A plastic injection mold is a tool for producing plastic products. It mainly consists of a lower mold and an upper mold, and there is a forming cavity in this combination. During injection molding, the mold is clamped on an injection molding machine, molten plastic is injected into the forming cavity, and it cools and solidifies in the cavity. Then, the upper mold and the lower mold are separated, and the plastic product is ejected from the forming cavity by an ejection system and leaves the mold. Finally, the mold is closed again for the next injection molding, and the whole injection molding process is carried out cyclically.

[0003] Currently, for plastic products with internal screw threads, it is usually necessary to set a screw thread structure in the injection mold. In the prior art, the common screw thread structures are all side screw threads on the front and rear molds. For a special-shaped screw thread inside the slider direction, it is generally placed by hand, and then the insert is manually twisted to retreat the thread during the mold opening process, which requires secondary processing, has a high labor cost, and low efficiency. Summary of the Utility Model

[0004] In view of this, aiming at the deficiencies existing in the prior art, the main purpose of the utility model is to provide a mold structure with a special-shaped screw thread in a slider, which can effectively solve the problems that the existing injection mold needs to manually place the special-shaped screw thread and manually twist the insert to retreat the thread.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A mold structure with a special-shaped screw thread in a slider includes a lower mold and an upper mold; the lower mold includes a lower mold base and a lower template arranged on the lower mold base, and a main slider that can move laterally in and out is arranged on the lower template; the upper mold is arranged above the lower mold and can move up and down, and a lifter is arranged on the upper mold, and the lifter prompts the main slider to slide inward; a motor is fixed on the outer side of the main slider, a rotatable shaft is arranged on the main slider, the rotatable shaft extends inside and outside, a driving gear is fixed on the rotatable shaft, the rotatable shaft is connected to the output end of the motor and is driven by the motor to rotate back and forth, and a special-shaped core is arranged inside the lower template, the special-shaped core extends inside and outside and is arranged parallel to the rotatable shaft, a screw core slider is sleeved on the special-shaped core, the screw core slider is arranged to be axially movable in and out relative to the special-shaped core, and a driven gear is sleeved and fixed on the screw core slider, and the driven gear is meshed and connected with the driving gear.

[0007] As a preferred solution, an insert spring is arranged between the inner side of the main slider and the lower template, and the insert spring urges the main slider to slide outward.

[0008] As a preferred solution, an oil cylinder is fixed on the outer side of the lower template. The outer end of the special-shaped core is fixedly connected to the piston rod of the oil cylinder, and the special-shaped core is driven by the oil cylinder to move in and out.

[0009] As a preferred solution, an electronic switch is arranged on the lower template. The electronic switch is located on the outer side of the main slider and is used to detect whether the main slider moves outward in place.

[0010] As a preferred solution, a chute is arranged on the lower template. The main slider moves in and out along the chute, and the electronic switch is located at the outer end of the chute to make the sliding of the main slider accurate.

[0011] As a preferred solution, slide rails are arranged on both sides of the chute. The main slider moves in and out under the guidance of the slide rails to make the sliding of the main slider smooth.

[0012] Compared with the prior art, the present utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions:

[0013] By arranging a motor and a rotating shaft on the main slider, arranging a driving gear on the rotating shaft, and at the same time, cooperating with a tooth core slider sleeved on the special-shaped core, and a driven gear is sleeved and fixed on the tooth core slider, and the driven gear is meshed and connected with the driving gear, so that full-automatic threading production can be carried out, realizing full-automatic mechanization, greatly improving production efficiency, saving manpower and costs, and bringing convenience to production operations.

[0014] To more clearly illustrate the structural features and functions of the present utility model, the present utility model will be described in detail below with reference to the drawings and specific embodiments. Brief Description of the Drawings

[0015] Figure 1 is the assembled three-dimensional schematic diagram of the preferred embodiment of the present utility model;

[0016] Figure 2 is the cross-sectional view of the preferred embodiment of the present utility model;

[0017] Figure 3 is another cross-sectional view of the preferred embodiment of the present utility model;

[0018] Figure 4 is still another cross-sectional view of the preferred embodiment of the present utility model;

[0019] Figure 5 is the partial assembled schematic diagram of the preferred embodiment of the present utility model;

[0020] Figure 6 is an enlarged schematic view of the internal structure of a preferred embodiment of the present utility model;

[0021] Figure 7 is Figure 6 a schematic view from another angle.

[0022] Explanation of the reference numerals in the drawings:

[0023] 10. Lower die 11. Lower die base

[0024] 12. Lower template 121. Slide groove

[0025] 122. Slide rail 13. Main body slider

[0026] 14. Motor 15. Rotating shaft

[0027] 16. Driving gear 17. Special-shaped core

[0028] 18. Tooth core slider 19. Driven gear

[0029] 101. Insert spring 102. Oil cylinder

[0030] 103. Electronic switch 104. Mold core

[0031] 105. Oil cylinder seat 20. Upper die

[0032] 21. Stripper. Detailed implementation manners

[0033] Please refer to Figures 1 to 7 as shown, which shows the specific structure of a preferred embodiment of the present utility model, including a lower die 10 and an upper die 20.

[0034] The lower die 10 includes a lower die base 11 and a lower template 12 disposed on the lower die base 11. A main body slider 13 that can move laterally in and out is disposed on the lower template 11. A motor 14 is fixed to the outer side of the main body slider 13. A rotatable rotating shaft 15 is disposed on the main body slider 13. The rotating shaft 15 extends inward and outward. A driving gear 16 is fixed to the rotating shaft 15. The rotating shaft 15 is connected to the output end of the motor 14 and is driven by the motor 14 to rotate back and forth. An special-shaped core 17 is disposed inside the lower template 12. The special-shaped core 17 extends inward and outward and is arranged parallel to the rotating shaft 15. A tooth core slider 18 is sleeved on the special-shaped core 17. The tooth core slider 18 is disposed so as to be axially movable in and out relative to the special-shaped core 17. A driven gear 19 is sleeved and fixed on the tooth core slider 18. The driven gear 19 is meshed and connected with the driving gear 16.

[0035] In this embodiment, a chute 121 is provided on the lower template 12, and the main slider 13 moves in and out along the chute 121. Moreover, slide rails 122 are provided on both sides of the chute 121, and the main slider 13 moves in and out under the guidance of the slide rails 122, ensuring smooth sliding of the main slider 13 in and out. A insert spring 101 is provided between the inner side of the main slider 13 and the lower template 12. The insert spring 101 urges the main slider 13 to slide outward, and there are two insert springs 101 symmetrically arranged up and down to make the outward movement of the main slider 13 more stable and reliable. In addition, an oil cylinder 102 is fixed on the outer side of the lower template 12. The outer end of the special-shaped core 17 is fixedly connected to the piston rod of the oil cylinder 102, and the special-shaped core 17 moves in and out driven by the oil cylinder 102. Further, an electronic switch 103 is provided on the lower template 12. The electronic switch 103 is located outside the main slider 13 and at the outer end of the chute 121. The electronic switch 103 is used to detect whether the main slider 13 has moved outward in place.

[0036] The upper mold 20 is movably arranged above the lower mold 10 up and down. A lifter 21 is provided on the upper mold 20, and the lifter 21 urges the main slider 13 to slide inward.

[0037] The working principle of this embodiment is described in detail as follows:

[0038] During operation, the electronic switch 103, the motor 14, and the oil cylinder 102 are all connected to an external control system. Before mold closing, the oil cylinder 102 is opened to push forward, and the entire main slider 13 together with the tooth core structure connected by the motor 14 and the gear is pushed inward in place and close to the mold core 104. When the upper mold 20 and the lower mold 10 are closed, the lifter 21 presses the main slider 13 from the outer side for normal injection molding. After the upper mold 20 and the lower mold 10 are opened, the motor 14 is started to rotate in reverse to drive the driving gear 16 to drive the driven gear 19 to rotate. The driven gear 19 drives the tooth core slider 18 to first retract the teeth. Then, the oil cylinder 102 is switched to pull outward, causing the entire main slider 13 to retreat outward and stick to the oil cylinder seat 105. When the main slider 13 touches the electronic switch 103, the external control system controls the motor 14 and the oil cylinder 102 to stop working, and the product is automatically produced after ejection.

[0039] The design focus of the present utility model lies in: a motor and a rotating shaft are provided on the main slider, a driving gear is provided on the rotating shaft, and at the same time, a tooth core slider is sleeved on the special-shaped core, and a driven gear is sleeved and fixed on the tooth core slider. The driven gear is meshed and connected with the driving gear, so that full-automatic thread tapping production can be carried out, realizing full-automatic mechanization, greatly improving production efficiency, saving manpower and costs, and bringing convenience to production operations.

[0040] The above are only the preferred embodiments of the present utility model, and do not impose any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A mold structure with a special-shaped thread in a slider, comprising a lower mold and an upper mold; the lower mold comprises a lower mold base and a lower mold plate arranged on the lower mold base, and the lower mold plate is provided with a main body slider that can move laterally inward and outward; the upper mold can be movably arranged up and down directly above the lower mold, and a shovel is provided on the upper mold, and the shovel causes the main body slider to slide inward; the characteristics are: A motor is fixed on the outside of the main slider, and a rotating shaft that can rotate back and forth is arranged on the main slider. The rotating shaft extends inwards and outwards, and a driving gear is fixed on the rotating shaft. The rotating shaft is connected to the output end of the motor and is driven by the motor to rotate back and forth. A special-shaped core is arranged in the lower template, and the special-shaped core extends inwards and outwards and is arranged parallel to the rotating shaft. A tooth core slider is sleeved on the special-shaped core, and the tooth core slider can be axially movably arranged inwards and outwards relative to the special-shaped core. A driven gear is sleeved and fixed on the tooth core slider, and the driven gear is meshed and connected with the driving gear.

2. The mold structure with special-shaped thread in the slider according to claim 1, characterized in that: An insert spring is arranged between the inner side of the main body sliding block and the lower template, and the insert spring prompts the main body sliding block to slide outward.

3. The mold structure with special-shaped threads in the slider according to claim 1 is characterized in that: An oil cylinder is fixed on the outer side of the lower template, the outer end of the special-shaped core is fixedly connected to the piston rod of the oil cylinder, and the special-shaped core is driven by the oil cylinder to move inward and outward.

4. The mold structure with special-shaped thread in the slider according to claim 1, characterized in that: The lower template is provided with an electronic switch, which is located outside the main body slider.

5. The mold structure with special-shaped thread in the slider according to claim 4, characterized in that: The lower template is provided with a slide groove, the main body slide block moves inside and outside the slide groove, and the electronic switch is located at the outer end of the slide groove.

6. The mold structure with special-shaped thread in the slider according to claim 5, characterized in that: Slide rails are arranged on both sides of the slide groove, and the main slide block moves inward and outward under the guidance of the slide rails.

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