Screw rubber coating injection mold
By designing screw glue-covered injection molds, the upper and lower mold cores and insert structures are used to achieve a one-time injection molding handle, which solves the problems of low efficiency and damage in the traditional process, improves production efficiency and reduces costs.
Patent Information
- Application Number
- CN202420198982.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-27
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-27
AI Technical Summary
The glue wrapping process of traditional screw handles requires two processes, which leads to low processing efficiency and high production costs due to manual assembly, and is prone to damage the screw surface and thread.
A screw glue-covered injection mold is designed, including a top-down panel, an upper moving mold, a lower fixed mold, a thrust plate and a bottom plate. Through the embedded structure of the upper mold core and the lower mold core, the insert and a thrust rod are realized. The screw thread is inserted into the circular groove of the insert and then the handle is molded once to avoid manual installation damage.
The high-efficiency single-injection molded screw handle is achieved, which improves production efficiency, reduces production costs, and avoids damage to the screw surface and threads by manual installation.
Smart Images
Figure CN222135807U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of molds, in particular to a screw rubber-coated injection mold. Background Art
[0002] The mold is a tool used to make molded products. Different shapes of molds are used to make products of different shapes, such as Figure 1 The screw shown in the figure has a handle installed at one end of the screw and a threaded end at the other end. The handle is plastic coated and the main body of the screw is made of iron. The rubber coating of the traditional screw handle needs to be completed in two processes. First, the rubber sleeve is injection molded and then the rubber sleeve is manually put on one end of the screw as the handle of the screw. This operation has the following problems: 1. The processing efficiency is low due to the two processes, and the manual assembly leads to high production costs; 2. The surface and thread of the screw will be damaged when the rubber sleeve is manually put on. Utility Model Content
[0003] The utility model provides a screw rubber-coated injection mold, aiming to solve the technical problems mentioned in the above technical background.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a screw-coated injection mold, comprising a panel, an upper movable mold, a lower fixed mold, an ejector plate and a bottom plate from top to bottom, an upper mold core is embedded in the bottom of the upper movable mold, and a lower mold core is embedded in the lower fixed mold. A plurality of upper strip grooves are opened on one side of the bottom of the upper mold core, and an upper positioning groove is opened on the other side. A plurality of lower strip grooves are opened on one side of the lower mold core, and a lower positioning groove is opened on the other side. An insert is arranged in the lower positioning groove, and a plurality of circular grooves are opened on the end surface of the insert facing the lower strip groove. A plurality of ejector rods are arranged at the bottom of the insert, and the ejector rods can slide downward through the lower mold core, and the lower fixed mold is fixed on the ejector plate.
[0005] Furthermore, a first insert block is detachably installed on the end surface of the insert block close to the lower strip groove, and the first insert block is provided with a through hole.
[0006] Furthermore, a second insert block is detachably mounted on one end of the insert block away from the lower strip groove.
[0007] Furthermore, convex strips are further arranged at the bottom of the upper strip groove and the bottom of the lower strip groove.
[0008] Furthermore, the lower mold core is provided with overflowing glue grooves on both sides of the lower strip groove, and a plurality of connecting grooves are provided between the overflowing glue grooves and the lower strip groove.
[0009] Furthermore, the upper strip grooves, the lower strip grooves and the circular grooves each include 4.
[0010] Furthermore, the push rods include four push rods, which are respectively arranged at the four corners of the insert.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The utility model comprises a panel, an upper movable mold, a lower fixed mold, an ejector plate and a bottom plate. An upper mold core is embedded in the bottom of the upper movable mold, a lower mold core is embedded in the lower fixed mold, a plurality of upper strip grooves are opened on one side of the bottom of the upper mold core, and an upper positioning groove is opened on the other side; a plurality of lower strip grooves are opened on one side of the lower mold core, and a lower positioning groove is opened on the other side; an insert is arranged in the lower positioning groove, and a plurality of circular grooves are opened on the end surface of the insert facing the lower strip groove; a plurality of ejector rods are arranged at the bottom of the insert, and the ejector rods can slide downward through the lower mold core and the lower fixed mold and are fixed on the ejector plate. Before mold closing, insert one end of the screw thread into the circular groove of the insert, and then place the insert in the lower positioning groove. The end of the screw extending out of the insert is placed in the lower strip groove. The upper mold core and the lower mold core close the upper strip groove and the lower strip groove to form a molding cavity. Hot melt adhesive is directly injected and coated on the screw to form the handle part of the screw. The screw handle is injection molded in one time, which is efficient and can avoid manual installation to damage the screw surface and thread. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0014] Figure 1 is a schematic diagram of the screw structure;
[0015] Figure 2 This is a schematic diagram of the structure of the screw rubber-coated injection mold of the utility model;
[0016] Figure 3 It is a schematic diagram of the structure of the lower mold core and the insert block of the screw rubber-coated injection mold of the utility model;
[0017] Figure 4 It is a schematic diagram of the lower mold core structure of the screw rubber-coated injection mold of the utility model;
[0018] Figure 5 It is a schematic diagram of the upper mold core structure of the screw rubber-coated injection mold of the utility model;
[0019] Figure 6 This is a schematic diagram of the insert structure of the screw rubber-coated injection mold of the utility model;
[0020] Figure 7 It is a schematic structural diagram of another angle of the insert of the screw rubber-coated injection mold of the utility model.
[0021] Main component symbols
[0022] 10. Panel;
[0023] 20. Upper movable mold;
[0024] 21. upper die core; 211. upper positioning groove; 212. upper strip groove;
[0025] 30. Set the mold;
[0026] 31, lower die core; 311, lower positioning groove; 312, lower strip groove; 313, insert; 3131, round groove; 3132, first insert; 3133, second insert;
[0027] 40, ejector plate; 401, ejector rod;
[0028] 50. Bottom plate;
[0029] 60, screw; 601, handle; 602, thread. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.
[0031] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it 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 the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0033] Example
[0034] like Figure 1 The screw rod 60 shown has a handle 601 installed at one end of the screw rod 60 and a thread 602 at the other end. The handle 601 is plastic-coated, and the main body of the screw rod 60 is made of iron.
[0035] Reference Figure 2-5 As shown, the utility model discloses a screw 60 rubber-coated injection mold, comprising a panel 10, an upper movable mold 20, a lower fixed mold 30, an ejector plate 40 and a bottom plate 50 from top to bottom, an upper mold core 21 is embedded in the bottom of the upper movable mold 20, a plurality of upper strip grooves 212 are opened on one side of the bottom of the upper mold core 21, and an upper positioning groove 211 is opened on the other side, a lower mold core 31 is embedded in the lower fixed mold 30, a plurality of lower strip grooves 312 are opened on one side of the lower mold core 31, and a lower positioning groove 311 is opened on the other side, when the upper mold core 21 and the lower mold core 31 are closed, the upper strip grooves 212 and the lower strip grooves 312 are closed to form a rubber-coated cavity, and the upper positioning grooves 211 and the lower positioning grooves 311 form a cavity for placing an insert 313. Furthermore, convex strips are further provided at the bottom of the upper strip groove 212 and the lower strip groove 312, and the upper strip groove 212 and the lower strip groove 312 are respectively used to form two grooves on both sides of the rubber-coated handle 601. In this embodiment, the upper strip groove 212 and the lower strip groove 312 respectively include 4, and the upper mold core 21 and the lower mold core 31 form 4 cavities when they are closed, and the handles 601 of 4 screw rods 60 can be rubber-coated at one time.
[0036] Reference Figure 2-3 , Figure 6-7As shown, an insert 313 is arranged in the lower positioning groove 311, and a plurality of circular grooves 3131 are opened on the end surface of the insert 313 facing the lower strip groove 312. In this embodiment, there are four circular grooves 3131, and four screws 60 are fixed in the circular grooves 3131 of the insert 313 at a time, so as to improve the efficiency of the rubber-wrapped handle 601. A plurality of ejector rods 401 are arranged at the bottom of the insert 313, and the ejector rods 401 can slide downward through the lower mold core 31 and the lower fixed mold 30 and be fixed on the ejector plate 40. In this embodiment, there are four ejector rods 401, which are respectively arranged at the four corners of the insert 313. When the mold is opened, the upper mold core 21 and the lower mold core 31 are separated, and the ejector plate 40 pushes the ejector rod 401 upward to push the insert 313 out of the lower positioning groove 311, and the insert 313 drives the screw 60 to escape from the lower strip groove 312. After the screw 60 is escaped, the rubber-coated handle 601 is taken out from the circular groove 3131 of the insert 313. Compared with the traditional method of performing two steps, the present invention only requires one step, which improves work efficiency and can avoid scratches on the thread 602 or the surface of the screw 60 caused by the rubber coating during installation.
[0037] Reference Figure 6-7 As shown, the first insert block 3132 is detachably mounted on the end surface of the insert block 313 close to the lower strip groove 312, and the first insert block 3132 has a through hole. Specifically, the screw rod 60 is inserted into the circular groove 3131 from the through hole of the first insert block 3132, and the first insert block 3132 is made of ABS material. During the process of inserting the screw rod 60 into the circular groove 3131, the surface of the screw rod 60 can be prevented from being scratched by the opening of the circular groove 3131. Furthermore, the second insert block 3133 is detachably mounted on the end of the insert block 313 away from the lower strip groove 312, and the second insert block 3133 is placed at the bottom of the circular groove 3131. The second insert block 3133 is made of ABS material, and the second insert block 3133 can prevent the thread 602 of the screw rod 60 from being damaged when it is inserted into the bottom of the circular groove 3131, thereby playing a protective role.
[0038] In addition, the lower mold core 31 is provided with overflowing glue grooves on both sides of the lower strip groove 312 , and a plurality of connecting grooves are provided between the overflowing glue grooves and the lower strip groove 312 . The overflowing glue grooves are used to collect the hot melt glue overflowing from the lower strip groove 312 .
[0039] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A screw encapsulated injection mold, characterized in that: It includes a panel, an upper movable mold, a lower fixed mold, an ejector plate and a bottom plate from top to bottom. The upper mold core is embedded in the bottom of the upper movable mold, and the lower mold core is embedded in the lower fixed mold. One side of the bottom of the upper mold core is provided with a plurality of upper strip grooves, and the other side is provided with an upper positioning groove. One side of the lower mold core is provided with a plurality of lower strip grooves, and the other side is provided with a lower positioning groove. An insert is arranged in the lower positioning groove, and the end surface of the insert facing the lower strip groove is provided with a plurality of circular grooves. A plurality of ejector rods are arranged at the bottom of the insert, and the ejector rods can slide downward through the lower mold core, and the lower fixed mold is fixed on the ejector plate.
2. The screw encapsulated injection mold according to claim 1, characterized in that: The first insert block is detachably mounted on the end surface of the insert block close to the lower strip groove, and the first insert block is provided with a through hole.
3. The screw encapsulated injection mold according to claim 1, characterized in that: The second insert block is detachably mounted on one end of the insert block away from the lower strip-shaped groove.
4. The screw encapsulated injection mold according to claim 1, characterized in that: The bottoms of the upper strip groove and the lower strip groove are further provided with convex strips.
5. The screw encapsulated injection mold according to claim 1, characterized in that: The lower mold core is provided with overflowing glue grooves on both sides of the lower strip groove, and a plurality of connecting grooves are provided between the overflowing glue grooves and the lower strip groove.
6. The screw encapsulated injection mold according to claim 1, characterized in that: The upper strip grooves, the lower strip grooves and the circular grooves each include four.
7. The screw encapsulated injection mold according to claim 1, characterized in that: The push rods include four push rods, which are respectively arranged at the four corners of the insert.