Detachable mold of threaded protective sleeve

By designing the flow tube, cooling components and gear system for removable molds, the problems of low injection molding efficiency and difficult demolding of thread protective sleeves are solved, and efficient production and stable demolding are achieved.

CN223266156UActive Publication Date: 2025-08-26XIAMEN HAOHUI HARDWARE PLASTIC CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422517582.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-18
Publication Date
2025-08-26
Estimated Expiration
2034-10-18

AI Technical Summary

Technical Problem

Existing injection molds are inefficient in the production of threaded protective sleeves and are difficult to release, especially because the inner wall is prone to sticking due to the threaded structure.

Method used

A removable mold including a base, upper and lower fixing plate, template, injection molding assembly and release assembly is designed. The injection molding of multiple protective sleeve molds is achieved through the flow tube and the injection molding needle tube, the cooling component is used to accelerate cooling, and the mold release is achieved through the gear system to avoid adhesion.

Benefits of technology

Improve production efficiency and mold release efficiency, ensure the stability and cooling efficiency of the injection molding process, simplify the operation process, and reduce labor demand.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223266156U_ABST
    Figure CN223266156U_ABST
Patent Text Reader

Abstract

The utility model discloses a detachable mold of a thread protection sleeve, and relates to the field of thread protection sleeves, the detachable mold comprises a base, a lower fixing plate, an upper mold plate, a lower mold plate and an upper fixing plate, the surface of the upper mold plate and the surface of the lower mold plate are each provided with an upper mold groove and a lower mold groove, and the surface of the upper fixing plate is fixedly connected with the surface of the upper mold plate through a bolt; a pouring gate is formed in the surface of the upper fixing plate, an injection molding assembly is arranged below the pouring gate, a demolding assembly is arranged in the lower fixing plate, and the injection molding assembly comprises an injection molding opening. The external driving source drives the chain wheel to rotate, after the chain wheel drives the driving gear shaft rod to rotate, the driving gear shaft rod drives the auxiliary gear to drive the multiple gear sleeve rods to rotate, after the gear sleeve rods rotate, the nut core mold can be driven to rotate, and therefore demolding is conducted on an injection molding model in the protective sleeve mold; the injection mold is prevented from adhering to the surface of the nut core mold after being cooled, so that the demolding efficiency is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of thread protection sleeves, in particular to a detachable mould for thread protection sleeves. Background Art

[0002] The threaded protective sleeve has a simple structure, the molds used for production and processing are not complicated, and the processing cost is low; 80% of the manufacturing materials are recycled materials, 20% are new raw materials, and most of them can be made of recycled plastics, which makes the raw material cost lower; because it is reusable, the cost of use is very low compared to linen wire binding; it is processed by injection molding, the surface quality of the protective sleeve is effectively guaranteed, the thread pitch and accuracy can be effectively guaranteed, and it will not damage the boom thread; it is easy to load and unload, and the work of two people can now be easily completed by one person, saving labor; it has beautiful and neat appearance, and high user satisfaction; it avoids the pollution to the environment caused by existing methods.

[0003] At present, in the process of injection molding of threaded protective sleeves, the existing injection mold has low production efficiency. Each injection molding can only produce one threaded protective sleeve. In addition, during the demoulding process, the threaded protective sleeve has internal threads, and its inner wall is easily adhered to the inner core mold, making demoulding difficult. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the above problems existing in the prior art, the utility model provides a detachable mold for a threaded protective sleeve.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a detachable mold for a threaded protective sleeve, comprising a base, a lower fixing plate, an upper template, a lower template, and an upper fixing plate, wherein the surfaces of the upper template and the lower template are both provided with an upper mold groove and a lower mold groove, the upper fixing plate is fixedly connected to the surface of the upper template by bolts, a gate is provided on the surface of the upper fixing plate, an injection molding component is provided below the gate, and a demolding component is provided inside the lower fixing plate;

[0008] The injection molding component includes an injection port, which is arranged inside the upper mold plate, and a flow tube is fixedly connected to the lower end of the injection port, and a plurality of injection needle tubes are fixedly connected to the lower end of the flow tube. A plurality of mold slot holes are opened inside the lower mold groove, and a nut core mold is slidably connected in the mold slot holes. A protective sleeve mold is threadedly connected to the surface of the nut core mold, and the protective sleeve mold is connected to the injection needle tube;

[0009] The demoulding assembly includes a driving gear shaft rod, the lower end of which is rotatably connected to the surface of the base, the lower end of which is meshed with a sprocket, and the upper end of which is meshed with a gear sleeve rod.

[0010] As a preferred solution of the detachable mold of the threaded protective sleeve of the utility model, the upper end of the protective sleeve mold is fixedly connected with a positioning column, the upper end of the positioning column is fixedly connected with a limiting plate, the limiting plate is clamped with a fixing ear, the fixing ear is fixedly connected to the upper mold plate by a bolt, and the inner wall of the upper mold groove is provided with a positioning groove, and the positioning groove is slidably connected to the upper end of the limiting plate.

[0011] As a preferred solution of the detachable mold of the threaded protective sleeve of the utility model, the surface of the lower template is fixedly connected with a guide column, the guide column is located at the four corners of the lower template, and the surface of the guide column is slidably connected to the interior of the upper template.

[0012] As a preferred solution of the detachable mold of the threaded protective sleeve of the utility model, an inner template is provided on the outer side of the protective sleeve mold, and the surface of the inner template is fixedly connected to the upper template by bolts.

[0013] As a preferred solution of the detachable mold of the threaded protective sleeve described in the utility model, a cooling component is provided inside the upper template and the lower template, and the cooling component includes a cooling inlet pipe A and a cooling outlet pipe A, and the cooling inlet pipe A and the cooling outlet pipe A are located inside the upper template, and the cooling component also includes a cooling inlet pipe B and a cooling outlet pipe B, and the cooling inlet pipe B and the cooling outlet pipe B are located inside the lower template.

[0014] As a preferred solution of the detachable mold of the threaded protective sleeve of the utility model, there are multiple gear sleeve rods, and the multiple gear sleeve rods are connected by auxiliary gears.

[0015] As a preferred solution of the detachable mold of the threaded protective sleeve of the utility model, the top of the gear sleeve rod is fixedly connected to the lower end of the nut core mold, the surface of the gear sleeve rod is fixedly connected to a bearing, and the bearing is arranged inside the lower fixed plate.

[0016] As a preferred solution of the detachable mold of the threaded protective sleeve of the utility model, one end of the sprocket away from the driving gear shaft is meshedly connected with a driving source.

[0017] (3) Beneficial effects

[0018] The utility model provides a detachable mold for a threaded protective sleeve, which has the following beneficial effects:

[0019] 1. The raw material is delivered to the circulation tube through the injection port, and multiple injection needles under the circulation tube can be used to inject raw materials into multiple protective sleeve molds, thereby improving the production efficiency of the product. At the same time, the positioning column and top plate above the protective sleeve mold can play a fixing role to ensure the stability during injection molding and avoid the deviation of the protective sleeve mold. The four guide columns on the lower template can limit and guide the movement of the upper template during the mold opening process, thereby improving the stability during mold opening.

[0020] 2. The upper mold plate and the lower mold plate are cooled by the cooling inlet pipe A, the cooling outlet pipe A, the cooling inlet pipe B and the cooling outlet pipe B to improve the cooling efficiency of the injection mold. After the injection mold is cooled, the sprocket can be driven to rotate by an external driving source. After the sprocket drives the driving gear shaft to rotate, the driving gear shaft drives multiple gear sleeve rods to rotate through the auxiliary gear. When the gear sleeve rod rotates, it can drive the nut core mold to rotate, thereby demolding the injection mold in the protective sleeve mold to prevent the injection mold from sticking to the surface of the nut core mold after cooling, thereby improving the demolding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a schematic structural diagram of the utility model as a whole.

[0023] Figure 2 It is a structural diagram of the cooling component of the utility model.

[0024] Figure 3 It is a structural diagram of the injection molding component of the utility model.

[0025] Figure 4 It is a structural schematic diagram of the demoulding component of the utility model.

[0026] Figure 5 It is a structural schematic diagram of the upper template of the utility model.

[0027] Figure 6 It is a structural schematic diagram of the lower template of the utility model.

[0028] In the figure, 1. base; 2. lower fixed plate; 3. upper template; 4. lower template; 5. upper fixed plate; 6. injection molding component; 601. gate; 602. circulation tube; 603. injection molding needle tube; 604. protective sleeve mold; 605. limit plate; 606. positioning column; 607. fixing ear; 608. nut core mold; 7. upper mold groove; 8. positioning groove; 9. cooling component; 901. cooling inlet pipe A; 902. cooling outlet pipe A; 903. cooling inlet pipe B; 904. cooling outlet pipe B; 10. inner template; 11. guide column; 12. mold groove hole; 13. demoulding component; 1301. sprocket; 1302. driving gear shaft rod; 1303. gear sleeve rod; 1304. auxiliary gear; 1305. bearing; 14. lower mold groove. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] Example 1

[0031] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 5 , which is the first embodiment of the present utility model, provides a detachable mold for a threaded protective sleeve, comprising a base 1, a lower fixing plate 2, an upper mold plate 3, a lower mold plate 4, and an upper fixing plate 5. The surfaces of the upper mold plate 3 and the lower mold plate 4 are both provided with an upper mold groove 7 and a lower mold groove 14. The upper fixing plate 5 is fixedly connected to the surface of the upper mold plate 3 by bolts. A gate 601 is provided on the surface of the upper fixing plate 5, and an injection molding component 6 is provided below the gate 601. A demolding component 13 is provided inside the lower fixing plate 2.

[0032] The injection molding component 6 includes an injection molding port, which is arranged inside the upper mold plate 3, and the lower end of the injection molding port is fixedly connected with a circulation tube 602, and the lower end of the circulation tube 602 is fixedly connected with multiple injection molding needles 603. The interior of the lower mold groove 14 is provided with multiple mold groove holes 12, and a nut core mold 608 is slidably connected in the mold groove hole 12. The surface of the nut core mold 608 is threadedly connected with a protective sleeve mold 604, and the protective sleeve mold 604 is connected to the injection molding needle 603.

[0033] Specifically, the upper end of the protective sleeve mold 604 is fixedly connected with a positioning column 606, the upper end of the positioning column 606 is fixedly connected with a limiting plate 605, the limiting plate 605 is clamped with a fixing ear 607, the fixing ear 607 is fixedly connected to the upper template 3 by bolts, the inner wall of the upper mold groove 7 is provided with a positioning groove 8, the positioning groove 8 is slidingly connected to the upper end of the limiting plate 605, the surface of the lower template 4 is fixedly connected with a guide column 11, the guide column 11 is located at the four corners of the lower template 4, and the surface of the guide column 11 is slidingly connected to the inside of the upper template 3, the outer side of the protective sleeve mold 604 is provided with an inner template 10, and the surface of the inner template 10 is fixedly connected to the upper template 3 by bolts.

[0034] Furthermore, when injection molding is required, the raw material is first transported to the circulation tube 602 through the injection port, and the raw material can be injected into multiple protective sleeve molds 604 through multiple injection molding needles 603 under the circulation tube 602, thereby improving the production efficiency of the product. At the same time, the positioning column 606 and the top plate above the protective sleeve mold 604 can play a fixing role to ensure stability during injection molding and avoid displacement of the protective sleeve mold 604. The four guide columns 11 on the lower template 4 can limit and guide the movement of the upper template 3 during the mold opening process, thereby improving stability during mold opening.

[0035] Example 2

[0036] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , which is the second embodiment of the present utility model, and this embodiment is based on the previous embodiment. The demolding assembly 13 includes a driving gear shaft 1302, the lower end of the driving gear shaft 1302 is rotatably connected to the surface of the base 1, the lower end of the driving gear shaft 1302 is meshedly connected to the sprocket 1301, and the upper end of the driving gear shaft 1302 is meshedly connected to the gear sleeve rod 1303.

[0037] Specifically, a cooling assembly 9 is provided inside the upper template 3 and the lower template 4. The cooling assembly 9 includes a cooling inlet pipe A901 and a cooling outlet pipe A902. The cooling inlet pipe A901 and the cooling outlet pipe A902 are located inside the upper template 3. The cooling assembly 9 also includes a cooling inlet pipe B903 and a cooling outlet pipe B904. The cooling inlet pipe B903 and the cooling outlet pipe B904 are located inside the lower template 4. There are multiple gear sleeve rods 1303, and the multiple gear sleeve rods 1303 are connected by auxiliary gears 1304. The top of the gear sleeve rod 1303 is fixedly connected to the lower end of the nut core mold 608. The surface of the gear sleeve rod 1303 is fixedly connected to a bearing 1305. The bearing 1305 is arranged inside the lower fixed plate 2. The sprocket 1301 is meshed with a driving source at one end away from the driving gear shaft rod 1302.

[0038] Furthermore, after the injection molding is completed, the upper template 3 and the lower template 4 can be cooled by the cooling inlet pipe A901, the cooling outlet pipe A902, the cooling inlet pipe B903 and the cooling outlet pipe B904 to improve the cooling efficiency of the injection mold. After the cooling of the injection mold is completed, the sprocket 1301 can be driven to rotate by an external driving source. After the sprocket 1301 drives the driving gear shaft rod 1302 to rotate, the driving gear shaft rod 1302 drives the auxiliary gear 1304 to drive multiple gear sleeve rods 1303 to rotate. When the gear sleeve rod 1303 rotates, it can drive the nut core mold 608 to rotate, thereby demolding the injection model in the protective sleeve mold 604 to avoid the injection model sticking to the surface of the nut core mold 608 after cooling, thereby improving the demolding efficiency.

[0039] Working principle: When injection molding is required, the raw material is first transported into the circulation tube 602 through the injection port, and the raw material can be injected into multiple protective sleeve molds 604 through the multiple injection needle tubes 603 under the circulation tube 602, thereby improving the production efficiency of the product. At the same time, the positioning column 606 and the top plate above the protective sleeve mold 604 can play a fixing role to ensure the stability during injection molding and avoid the protective sleeve mold 604 from deflecting. The four guide columns 11 on the lower template 4 can limit and guide the movement of the upper template 3 during the mold opening process, thereby improving the stability during mold opening. After the injection molding is completed, the cooling inlet pipe A901, the cooling outlet pipe A902, and the cooling The cooling inlet pipe B903 and the cooling outlet pipe B904 cool the upper template 3 and the lower template 4 to improve the cooling efficiency of the injection mold. After the injection mold is cooled, the sprocket 1301 can be driven to rotate by an external driving source. After the sprocket 1301 drives the driving gear shaft 1302 to rotate, the driving gear shaft 1302 drives multiple gear sleeve rods 1303 to rotate through the auxiliary gear 1304. When the gear sleeve rod 1303 rotates, it can drive the nut core mold 608 to rotate, thereby demolding the injection model in the protective sleeve mold 604 to avoid the injection model sticking to the surface of the nut core mold 608 after cooling, thereby improving the demolding efficiency.

[0040] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A detachable mold for a threaded protective sleeve, comprising a base (1), a lower fixing plate (2), an upper mold plate (3), a lower mold plate (4) and an upper fixing plate (5), wherein the surfaces of the upper mold plate (3) and the lower mold plate (4) are both provided with an upper mold groove (7) and a lower mold groove (14), and characterized in that: The upper fixing plate (5) is fixedly connected to the surface of the upper template (3) by bolts, a gate (601) is provided on the surface of the upper fixing plate (5), an injection molding component (6) is provided below the gate (601), and a demoulding component (13) is provided inside the lower fixing plate (2); The injection molding component (6) includes an injection molding port, which is arranged inside the upper mold plate (3), and the lower end of the injection molding port is fixedly connected to a circulation tube (602), and the lower end of the circulation tube (602) is fixedly connected to a plurality of injection molding needle tubes (603), and the interior of the lower mold groove (14) is provided with a plurality of mold groove holes (12), and a nut core mold (608) is slidably connected in the mold groove holes (12), and the surface of the nut core mold (608) is threadedly connected to a protective sleeve mold (604), and the protective sleeve mold (604) is connected to the injection molding needle tube (603); The demoulding assembly (13) includes a driving gear shaft (1302), the lower end of which is rotatably connected to the surface of the base (1), the lower end of which is meshedly connected to a sprocket (1301), and the upper end of which is meshedly connected to a gear sleeve rod (1303).

2. The detachable mold for a threaded protective sleeve according to claim 1, characterized in that: The upper end of the protective sleeve mold (604) is fixedly connected to a positioning column (606), the upper end of the positioning column (606) is fixedly connected to a limiting plate (605), the limiting plate (605) is clamped with a fixing ear (607), the fixing ear (607) is fixedly connected to the upper mold plate (3) by a bolt, and the inner wall of the upper mold groove (7) is provided with a positioning groove (8), and the positioning groove (8) is slidably connected to the upper end of the limiting plate (605).

3. The detachable mold for a threaded protective sleeve according to claim 1, characterized in that: The surface of the lower template (4) is fixedly connected with a guide column (11), the guide column (11) is located at the four corners of the lower template (4), and the surface of the guide column (11) is slidably connected to the inside of the upper template (3).

4. The detachable mold for a threaded protective sleeve according to claim 1, characterized in that: An inner template (10) is provided on the outer side of the protective sleeve mold (604), and the surface of the inner template (10) is fixedly connected to the upper template (3) by bolts.

5. The detachable mold for a threaded protective sleeve according to claim 1, characterized in that: A cooling assembly (9) is provided inside both the upper template (3) and the lower template (4). The cooling assembly (9) comprises a cooling inlet pipe A (901) and a cooling outlet pipe A (902), and the cooling inlet pipe A (901) and the cooling outlet pipe A (902) are located inside the upper template (3). The cooling assembly (9) further comprises a cooling inlet pipe B (903) and a cooling outlet pipe B (904), and the cooling inlet pipe B (903) and the cooling outlet pipe B (904) are located inside the lower template (4).

6. The detachable mold for a threaded protective sleeve according to claim 1, characterized in that: There are multiple gear sleeve rods (1303), and the multiple gear sleeve rods (1303) are connected via auxiliary gears (1304).

7. The detachable mold for a threaded protective sleeve according to claim 1, characterized in that: The top of the gear sleeve rod (1303) is fixedly connected to the lower end of the nut core mold (608), and the surface of the gear sleeve rod (1303) is fixedly connected to a bearing (1305), and the bearing (1305) is arranged inside the lower fixed plate (2).

8. The detachable mold for a threaded protective sleeve according to claim 1, characterized in that: One end of the sprocket (1301) away from the driving gear shaft (1302) is meshedly connected to a driving source.