Engineering service lamp mold structure

Abstract

The utility model discloses an engineering service lamp mold structure and relates to the technical field of injection molds. An engineering service lamp mold structure comprises a lower mold and an upper mold and further comprises a limiting rod rotationally connected to the upper mold, a slope-shaped jacking structure is designed, the problem that the upper mold and the lower mold are tightly connected and are difficult to separate due to negative pressure in a mold cavity formed by thermal expansion and cold contraction after cooling is solved, meanwhile, the mold structure is simple in structure and convenient to operate, and the production efficiency is improved. The three locking mechanisms can effectively prevent the upper mold and the lower mold from being exploded due to high pressure in the mold cavity in the injection molding process and prevent casualties caused by splashing of high-temperature injection molding materials, and can also prevent deformation and scrapping of finished products in the mold cavity due to the fact that the upper mold and the lower mold are separated by mistakenly pulling the pull handle by personnel when the cooling process is not finished. The safety is greatly improved, meanwhile, the output rate of waste products is reduced, the possible scalding hidden danger is fully considered in the material selection of the pull handle and the carrying handle, and the risk of personnel during operation is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and specifically relates to a mold structure for engineering service lights. Background Art

[0002] Injection molds are important process equipment for producing various industrial products. With the rapid development of the plastics industry and the popularization and application of plastic products in industrial sectors such as aviation, aerospace, electronics, machinery, ships, and automobiles, injection molds are widely used in various industries. Injection molding is a processing method used for mass-producing some complex-shaped parts, including mold closing, injection, pressure holding, cooling, demolding, and product removal. Specifically, it means injecting the heat-melted material into the mold cavity, and after cooling and solidifying, opening the mold to take out the formed product.

[0003] When injecting injection molding materials into the mold after mold closing, due to the extremely high temperature of the injection molding materials, extremely high pressure will be generated in the mold cavity inside the mold. If the mold after mold closing is not locked, there is a possibility that the mold will burst under high pressure, and the splashing injection molding materials will pose a huge threat to the safety of personnel. In the prior art, bolts, lock pins and other detachable structures are mostly used to lock the mold after mold closing. Repeated installation and disassembly not only make the process long and cumbersome, but also easily cause the loss of locking parts. For this reason, we propose a mold structure for engineering service lights. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a mold structure for engineering service lights that can overcome or at least partially solve the above problems.

[0005] To solve the above technical problems, the basic concept of the technical solution adopted by the utility model is: a mold structure for engineering service lights, including a lower mold and an upper mold, and further including: a limiting rod rotatably connected to the upper mold, a locking plate fixedly connected to the limiting rod, and a groove is opened on the locking plate; a pull handle corresponding to the groove opened on the locking plate; when the lower mold and the upper mold are combined, the groove opened on the locking plate catches the pull handle to lock the lower mold and the upper mold.

[0006] Preferably, a sliding groove is opened on the lower mold, a slider is slidably connected in the sliding groove, a through hole is opened on the side edge of the lower mold, and the pull handle is slidably connected in the through hole and fixedly connected to the slider.

[0007] Furthermore, a sloped groove is opened on the slider.

[0008] Preferably, a baffle is also fixedly connected to the limiting rod, and a rotating groove is opened on the lower mold corresponding to the limiting rod, the locking plate, and the baffle.

[0009] Preferably, a slope-shaped block is fixedly connected to the upper mold, and the slope-shaped block corresponds to a slope-shaped groove formed on the slider.

[0010] Preferably, a lug is fixedly connected to the side of the upper mold, and a handle is rotatably connected to the lug.

[0011] Preferably, corresponding mold cavities and injection holes are formed on both the lower mold and the upper mold.

[0012] Preferably, the pull handle and the lifting handle are made of a non-metallic material with low thermal conductivity.

[0013] After adopting the above technical solution, the present utility model has the following beneficial effects compared with the prior art: By designing a ramp-shaped jacking structure, the present utility model solves the problem that the upper mold and the lower mold are tightly connected and difficult to separate due to the negative pressure inside the mold cavity formed by thermal expansion and contraction after cooling. At the same time, the three locking mechanisms can not only effectively prevent the upper mold and the lower mold from bursting due to the high pressure inside the mold cavity during the injection process, and the high-temperature injection material splashing and causing casualties, but also prevent the upper mold and the lower mold from being separated by misoperation of pulling the pull handle before the cooling process is completed, resulting in the deformation and scrapping of the finished product in the mold cavity. It greatly improves the safety and reduces the scrap rate. The materials of the pull handle and the lifting handle are selected fully considering the potential scalding hazards, reducing the risk during personnel operation.

[0014] The following further describes in detail the specific embodiments of the present utility model with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In the drawings:

[0016] Figure 1 is a structural schematic diagram of a mold structure of an engineering service lamp proposed by the present utility model Figure 1 ;

[0017] Figure 2 is a structural schematic diagram of a locking plate and a lifting handle of a mold structure of an engineering service lamp proposed by the present utility model;

[0018] Figure 3 is a structural schematic diagram of a mold structure of an engineering service lamp proposed by the present utility model Figure 2 ;

[0019] Figure 4 is a structural schematic diagram of a mold cavity of a mold structure of an engineering service lamp proposed by the present utility model.

[0020] In the figure: 1. Lower mold; 10. Perforation; 11. Slide groove; 12. Rotating groove; 13. Pull handle; 14. Slide block; 141. Sloping groove; 15. Mold cavity; 2. Upper mold; 21. Limit rod; 22. Locking plate; 23. Baffle plate; 24. Sloping block; 25. Lug; 26. Lift handle; 3. Injection hole. Detailed implementation mode

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0022] Example 1: Refer to Figures 1 - 4 , a mold structure for an engineering service lamp, including a lower mold 1 and an upper mold 2, further including: a slide groove 11 is opened on the lower mold 1, a slide block 14 is slidably connected in the slide groove 11, a perforation 10 is opened on the side of the lower mold 1, a pull handle 13 is slidably connected in the perforation 10 and fixedly connected to the slide block 14; a sloping groove 141 is opened on the slide block 14; a sloping block 24 is fixedly connected to the upper mold 2, and the sloping block 24 corresponds to the sloping groove 141 opened on the slide block 14; corresponding mold cavities 15 and injection holes 3 are opened on both the lower mold 1 and the upper mold 2;

[0023] First, push the pull handles 13 on both sides of the lower mold 1 towards the mold cavity 15 until one end of the slide block 14 contacts the slide groove 11, and then combine the upper mold 2 with the lower mold 1 to form a complete mold cavity 15 and injection hole 3. At this time, the sloping block 24 fixedly connected to the upper mold 2 is inserted into the sloping groove 141 on the slide block 14 to limit the upper mold 2 and prevent the upper mold 2 from sliding, resulting in misalignment of the mold cavity 15 and the injection hole 3. Inject the molten material into the mold cavity 15 through the injection hole 3, and wait for the material in the mold cavity 15 to cool and form. After the material in the mold cavity 15 is formed and cooled, pull the pull handles 13 outwards to both sides. The pull handles 13 pull the slide block 14 to slide in the slide groove 11, and the sloping groove 141 on the slide block 14 jacks up the sloping block 24 upwards during the sliding process, thereby jacking up the upper mold 2 and separating the lower mold 1 from the upper mold 2, so as to prevent the lower mold 1 and the upper mold 2 from being tightly connected and difficult to separate due to the negative pressure in the mold cavity 15 caused by the principle of thermal expansion and contraction after cooling.

[0024] Example 2: Refer to Figures 1 - 4, an engineering service lamp mold structure, which is basically the same as that in Embodiment 1. Furthermore: a limiting rod 21 rotatably connected to the upper mold 2, a locking plate 22 fixedly connected to the limiting rod 21, and a groove is provided on the locking plate 22; the pull handle 13 corresponds to the groove provided on the locking plate 22; a baffle 23 is also fixedly connected to the limiting rod 21, and a rotating groove 12 is provided on the lower mold 1, and the rotating groove 12 corresponds to the limiting rod 21, the locking plate 22, and the baffle 23; a lug 25 is fixedly connected to the side of the upper mold 2, and a lifting handle 26 is rotatably connected to the lug 25, and the pull handle 13 and the lifting handle 26 are made of a low-thermal-conductivity non-metallic material;

[0025] When combining the upper mold 2 and the lower mold 1, the limiting rod 21, the locking plate 22, and the baffle 23 rotatably connected to the upper mold 2 are inserted into the rotating groove 12 opened correspondingly on the lower mold 1. The limiting rod 21 can further prevent relative displacement between the upper mold 2 and the lower mold 1. Rotate the locking plate 22 along the limiting rod 21 to engage the groove provided on the locking plate 22 with the pull handle 13, locking the upper mold 2 and the lower mold 1. At the same time, the baffle 23 will contact the slider 14. The lifting handle 26 rotatably connected to the lug 25 will naturally hang down under the action of gravity at this time, pressing against the locking plate 22. At this time, the locking plate 22 can no longer be rotated, and the baffle 23 presses against the slider 14, making the pull handle 13 no longer able to be pulled. Then, inject the molten material into the mold cavity 15 through the injection hole 3. During the process of the material in the mold cavity 15 cooling and forming, the locking provided by the locking plate 22 for the upper mold 2 and the lower mold 1 can prevent the upper mold 2 and the lower mold 1 from bursting due to high pressure in the mold cavity 15, resulting in the ejection of the internally high-temperature injection material and posing a threat to the safety of personnel. The hanging lifting handle 26 presses against the locking plate 22 and further fixes the position of the baffle 23 to lock the pull handle 13, preventing personnel from accidentally operating and pulling the pull handle 13 to separate the upper mold 2 and the lower mold 1 when the material in the mold cavity 15 has not completely cooled and formed, resulting in the deformation and scrapping of the finished product in the mold cavity 𝟏𝟓. After the cooling and forming stage is completely over, first rotate the lifting handle 26 upward to disengage the lifting handle 26 from the locking plate 22, and then drive the locking plate 22 to rotate to disengage the locking plate 22 from the pull handle 13. At the same time, the rotation of the locking plate 22 will drive the baffle 23 to disengage from the slider 14, completely releasing the locking structure. By pulling the pull handle 13 outward on both sides, the pull handle 13 pulls the slider 14 to slide in the chute 11, and the sloped groove 141 on the slider 14 will push the sloped block 24 upward during the sliding process, thereby jacking up the upper mold 2 and separating the lower mold 1 from the upper mold 2. Then hold the lifting handle 26 and lift the upper mold 2 upward to completely separate the lower mold 1 from the upper mold 2. The pull handle 13 and the lifting handle 26 are both made of a low-thermal-conductivity non-metallic material, improving the holding comfort and reducing the risk of personnel being scalded at the same time.

[0026] The utility model solves the problem that it is difficult to separate the upper mold 2 from the lower mold 1 due to the negative pressure inside the mold cavity 15 formed by thermal expansion and contraction after cooling by designing a ramp-shaped jacking structure. At the same time, the three locking mechanisms can not only effectively prevent the upper mold 2 and the lower mold 1 from bursting due to the high pressure inside the mold cavity 15 during the injection molding process, and prevent the high-temperature injection molding material from splashing and causing casualties, but also prevent the upper mold 2 and the lower mold 1 from being separated by the operator's misoperation of pulling the handle 13 before the cooling process is completed, resulting in the deformation and scrapping of the finished product in the mold cavity 15. This greatly improves the safety and reduces the scrap rate. The materials of the handle 13 and the lifting handle 26 are selected with full consideration of the possible scalding hazards, reducing the risk during the operation of personnel.

[0027] The above are only the preferred embodiments of the utility model, and do not impose any form of limitation on the utility model. Although the utility model has been disclosed above with the preferred embodiments, it is not intended to limit the utility model. Any person skilled in the art of the utility model can make some changes or modifications to the above-disclosed technical content to form equivalent embodiments without departing from the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still fall within the scope of the technical solution of the utility model.

Claims

1. An engineering service lamp mold structure, including a lower mold (1) and an upper mold (2), characterized in that, It further includes: A limiting rod (21) rotatably connected to the upper mold (2), a locking plate (22) fixedly connected to the limiting rod (21), and a groove is formed in the locking plate (22); A pull handle (13), the pull handle (13) corresponding to the groove formed in the locking plate (22); When the lower mold (1) and the upper mold (2) are combined, the groove formed in the locking plate (22) catches the pull handle (13) to lock the lower mold (1) and the upper mold (2).

2. The mold structure of an engineering service lamp according to claim 1, wherein A sliding groove (11) is formed in the lower mold (1), a slider (14) is slidably connected in the sliding groove (11), a through hole (10) is formed in the side of the lower mold (1), and the pull handle (13) is slidably connected in the through hole (10) and fixedly connected to the slider (14).

3. The mold structure of an engineering service lamp according to claim 2, characterized in that, A slope-shaped groove (141) is formed in the slider (14).

4. The mold structure of an engineering service lamp according to claim 1, characterized in that, A baffle (23) is further fixedly connected to the limiting rod (21), and a rotating groove (12) is formed in the lower mold (1), the rotating groove (12) corresponding to the limiting rod (21), the locking plate (22), and the baffle (23).

5. The mold structure of an engineering service lamp according to claim 1, characterized in that, A slope-shaped block (24) is fixedly connected to the upper mold (2), the slope-shaped block (24) corresponding to the slope-shaped groove (141) formed in the slider (14).

6. The mold structure of an engineering service lamp according to claim 1, characterized in that A lug (25) is fixedly connected to the side of the upper mold (2), and a lifting handle (26) is rotatably connected to the lug (25).

7. The mold structure of an engineering service lamp according to claim 1, characterized in that Corresponding mold cavities (15) and injection holes (3) are formed in both the lower mold (1) and the upper mold (2).

8. The mold structure of an engineering service lamp according to claim 1, characterized in that, The pull handle (13) and the lifting handle (26) are made of a non-metallic material with low thermal conductivity.

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