Forming mold for injection molding of protective cover
By introducing an automated release agent spraying structure into the injection molding mold of the protective cover, the problems of high workload and safety risks caused by manual spraying are solved, realizing automated release agent spraying and improving production efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN ZHENGYU PLASTIC HARDWARE PRODUCTS CO LTD
- Filing Date
- 2024-06-28
- Publication Date
- 2026-05-05
AI Technical Summary
Existing protective cover injection molding molds require manual application of release agent during demolding, which increases the workload and risk for operators.
The system employs an automated mold release agent spraying structure, including an electric telescopic rod, an electric slide rail, a mold release agent spraying machine, and an air tank, to achieve automated spraying of the mold release agent and reduce manual operation.
It enables automated spraying of release agent, which expands production scale while reducing the workload and safety risks for operators.
Smart Images

Figure CN224197207U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a protective cover injection molding die, and in particular to a protective cover injection molding die, belonging to the field of injection molding technology. Background Technology
[0002] Injection molds are widely used in industrial production because they can rapidly produce a large number of products with the same characteristics in a short time, resulting in high production efficiency. During the manufacturing process, precise machining and measurement techniques ensure that the size and shape of the mold are extremely accurate. Injection molds also enable large-scale production, which reduces the cost per product. At the same time, the design and manufacturing of injection molds are very flexible, allowing for a variety of product shapes, colors, and sizes. Injection molds can also enable circular production, reducing raw material waste and the generation of scrap, which aligns with the concept of sustainable development.
[0003] However, in order to quickly and smoothly demold the workpiece after injection molding, the existing protective cover injection molding mold requires manual spraying of release agent on the injection groove of the mold. This reduces production while increasing the workload of operators, and thus increases the risk factor for operators.
[0004] Therefore, it is urgent to improve the injection molding mold for protective covers in order to solve the above-mentioned problems. Utility Model Content
[0005] The purpose of this invention is to provide a protective cover injection molding mold. This device can automatically spray the mold release agent into the injection groove of the mold through an automatic mold release agent spraying structure, eliminating the need for manual spraying. This reduces the workload of operators while expanding production, thereby lowering the risk factor for operators.
[0006] To achieve the above objectives, the main technical solution adopted by this utility model includes: a base, with support platforms symmetrically arranged at both ends of the upper surface of the base, injection molding molds arranged on the upper surfaces of the two support platforms, and an automatic release agent spraying structure arranged at one end of the base. The automatic release agent spraying structure includes a connecting base, an electric telescopic rod arranged on the upper surface of the connecting base, a support base arranged at the telescopic end of the electric telescopic rod, electric slide rails symmetrically arranged at both ends of the upper surface of the support base, a connecting shaft arranged between the two electric slide rails, a release agent spraying machine fixedly sleeved on the connecting shaft, and a release agent gas tank arranged below the connecting shaft.
[0007] Preferably, the electric slide rail includes a track, protrusions on both sides of the track, fixing blocks at both ends of the track, and a drive structure that is snapped onto the track.
[0008] Preferably, the drive structure includes a fixed plate, a drive motor disposed at the lower end corner of the fixed plate, a rubber wheel disposed at the output end of the drive motor, and an annular groove formed on the side of the rubber wheel to fit the protrusion. The two fixed plates are connected by the connecting shaft.
[0009] Preferably, the release agent spraying machine includes a connecting block, a metal air pipe disposed inside the connecting block, a metal branched air pipe disposed at the end of the metal air pipe, and a double-sided spray head disposed at the end of the metal branched air pipe.
[0010] Preferably, the mold release agent gas canister is fixedly disposed on the lower surface of the connecting block, the mold release agent gas canister is connected to the metal gas pipe, and the metal gas pipe is connected to the metal branched gas pipe.
[0011] Preferably, the injection molding die is provided with an upper worktable and a lower worktable. An upper injection mold is provided in a groove on the lower surface of the upper worktable, and a lower injection mold is provided in a groove on the upper surface of the lower worktable. The upper worktable and the lower worktable are connected by a hydraulic rod.
[0012] Preferably, a water-cooling pipe is provided at the inner edge of the upper injection mold near the lower bottom surface, and the water-cooling pipe is provided at the inner edge of the lower injection mold near the upper bottom surface.
[0013] Preferably, the upper surface of the upper injection mold is provided with an injection feed pipe, which extends through the upper injection mold into the lower injection mold and communicates with the mold groove on the upper surface of the lower injection mold.
[0014] This utility model has at least the following beneficial effects:
[0015] 1. This utility model can control the release agent spraying machine to move on the track through the drive structure in the electric slide rail to automatically spray the release agent into the injection tank of the mold, eliminating the need for manual spraying. This reduces the workload of operators while expanding production, thereby reducing the risk factor for operators. Attached Figure Description
[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0017] Figure 1 This is a schematic diagram of the internal structure of the present invention;
[0018] Figure 2This is a schematic diagram of the electric slide rail structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the main working structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the overall structure of this utility model.
[0021] In the diagram, 1-base; 2-support platform; 4-automatic mold release agent spraying structure; 5-connecting base; 6-electric telescopic rod; 7-supporting base; 8-electric slide rail; 9-connecting shaft; 10-mold release agent spraying machine; 11-mold release agent gas tank; 12-track; 13-protrusion; 14-fixing block; 15-drive structure; 16-fixing plate; 17-drive motor; 18-rubber wheel; 19-ring groove; 20-connecting block; 21-metal air pipe; 22-metal branched air pipe; 23-double-sided spray nozzle; 24-lower injection mold; 25-hydraulic rod; 26-water cooling pipe; 27-injection feed pipe; 101-upper injection mold; 102-upper worktable; 103-lower worktable. Detailed Implementation
[0022] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0023] like Figures 1-4As shown, the protective cover injection molding mold provided in this embodiment includes a base 1. Support platforms 2 are symmetrically arranged at both ends of the upper surface of the base 1. An injection molding mold is mounted on the upper surface of the two support platforms 2. An automatic release agent spraying structure 4 is provided at one end of the base 1. The automatic release agent spraying structure 4 includes a connecting base 5, an electric telescopic rod 6 mounted on the upper surface of the connecting base 5, a support base 7 mounted at the telescopic end of the electric telescopic rod 6, electric slide rails 8 symmetrically arranged at both ends of the upper surface of the support base 7, a connecting shaft 9 between the two electric slide rails 8, a release agent spraying machine 10 fixedly sleeved on the connecting shaft 9, and a release agent gas tank 11 located below the connecting shaft 9. The base 1 facilitates the support and fixation of the device, and the support platforms 2 facilitate... The system supports and fixes the injection mold. The automatic release agent spraying structure 4 facilitates the spraying of release agent into the injection mold. The connecting base 5 facilitates the fixing of the electric telescopic rod 6 to the base 1. The electric telescopic rod 6 facilitates the control of the lifting and lowering of the automatic release agent spraying structure 4. The supporting base 7 facilitates the support of the electric slide rail 8 and can also fix the electric slide rail 8 to the electric telescopic rod 6. The electric slide rail 8 facilitates the pushing of the release agent spraying machine 10 into the injection mold. The connecting shaft 9 facilitates the connection of the two electric slide rails 8 to ensure that the two electric slide rails 8 move synchronously. The release agent spraying machine 10 facilitates the spraying of release agent onto the surface of the injection mold that needs to be injected. The release agent gas tank 11 facilitates the storage and supply of release agent to the release agent spraying machine 10.
[0024] The electric slide rail 8 includes a track 12, protrusions 13 on both sides of the track 12, fixing blocks 14 at both ends of the track 12, and a drive structure 15 that is snapped onto the track 12. The track 12 allows the release agent sprayer 10 to move on the electric slide rail 8 and supports the release agent sprayer 10. The fixing blocks 14 facilitate the fixed connection of the track 12 to the support base 7, and the drive structure 15 facilitates the movement of the release agent sprayer 10 on the track 12.
[0025] The drive structure 15 includes a fixed plate 16, a drive motor 17 disposed at the lower end corner of the fixed plate 16, a rubber wheel 18 disposed at the output end of the drive motor 17, and an annular groove 19 formed on the side of the rubber wheel 18 that is adapted to the protrusion 13. The two fixed plates 16 are connected by a connecting shaft 9. The fixed plate 16 facilitates the support and fixation of the drive motor 17. The drive motor 17 facilitates the driving force for the movement of the release agent sprayer 10 on the track 12. The rubber wheel 18 facilitates the movement of the drive structure 15 on the track 12. The annular groove 19 adapted to the protrusion 13 allows the rubber wheel 18 to be engaged on the track 12 when it moves, preventing the drive structure 15 from shaking during movement.
[0026] The mold release agent spraying machine 10 includes a connecting block 20, a metal air pipe 21 disposed inside the connecting block 20, a metal branched air pipe 22 disposed at the end of the metal air pipe 21, and a double-sided spray head 23 disposed at the end of the metal branched air pipe 22. The connecting block 20 facilitates the fixed mounting of the mold release agent spraying machine 10 on the connecting shaft 9. The metal air pipe 21 and the metal branched air pipe 22 facilitate the transfer of mold release agent in the mold release agent tank 11 to the double-sided spray head 23, and at the same time serve to support and connect the double-sided spray head 23. The double-sided spray head 23 facilitates the simultaneous spraying of the injection groove on the lower surface of the upper injection mold 101 and the injection groove on the upper surface of the lower injection mold 24.
[0027] The mold release agent gas tank 11 is fixedly installed on the lower surface of the connecting block 20. The mold release agent gas tank 11 is connected to the metal gas pipe 21, and the metal gas pipe 21 is connected to the metal branched gas pipe 22, so that the mold release agent in the mold release agent gas tank 11 can be smoothly transferred to the double-sided nozzle 23.
[0028] The injection molding die is provided with an upper worktable 102 and a lower worktable 103. An upper injection mold 101 is provided in a groove on the lower surface of the upper worktable 102, and a lower injection mold 24 is provided in a groove on the upper surface of the lower worktable 103. The upper worktable 102 and the lower worktable 103 are connected by a hydraulic rod 25. The upper worktable 102 facilitates the fixing of the upper injection mold 101, and the lower worktable 103 facilitates the fixing of the lower injection mold 24. The upper injection mold 101 and the lower injection mold 24 fit together to provide the injection mold cavity required for injection. The hydraulic rod 25 facilitates the control of the lifting and lowering of the upper injection mold 101.
[0029] A water-cooling pipe 26 is provided on the inner edge of the upper injection mold 101 near the bottom surface, and a water-cooling pipe 26 is provided on the inner edge of the lower injection mold 24 near the top surface. The water-cooling pipe 26 facilitates the cooling and molding of the injection molded part.
[0030] An injection feed pipe 27 is provided on the upper surface of the upper injection mold 101. The injection feed pipe 27 extends through the upper injection mold 101 into the lower injection mold 24 and communicates with the mold groove on the upper surface of the lower injection mold 24. The injection feed pipe 27 facilitates the direct injection of the injection material into the mold cavity formed by the close fit between the upper injection mold 101 and the lower injection mold 24.
[0031] like Figures 1-4 As shown, the principle of the protective cover injection molding mold provided in this embodiment is as follows: When using the device, the water cooling pipe 26 should be connected to the water source first, and it should be ensured that the water cooling pipe 26 in the upper injection mold 101 and the lower injection mold 24 can circulate normally. Then check the reserve in the release agent gas tank 11, and then check whether the holes in the double-sided nozzle 23 are blocked. If so, clear them with a sharp object.
[0032] After the pre-operation inspection is completed, the upper injection mold 101 and the lower injection mold 24, which are tightly fitted together, can be separated by the hydraulic rod 25. Then, the drive motor 17 rotates and the drive structure 15 moves on the track 12, which causes the electric slide rail 8 to start operating. At this time, the release agent spraying machine 10, which is fixed between the two electric slide rails 8, will slowly move to the space between the upper injection mold 101 and the lower injection mold 24 as the two electric slide rails 8 move. Then, the release agent is sprayed simultaneously onto the lower surface of the upper injection mold 101 and the upper surface of the lower injection mold 24 through several double-sided spray nozzles 23.
[0033] After the release agent is sprayed, the release agent spraying machine 10 will return to the initial position under the reverse movement of the electric slide rail 8. Then, the upper injection mold 101 and the lower injection mold 24 will be tightly fitted together by the retraction of the hydraulic rod 25. Then, the operator can inject the injection material into the mold cavity formed by the tight fit of the upper injection mold 101 and the lower injection mold 24 through the injection feed pipe 27. At this time, the water cooling pipe 26 will quickly cool down the injection molded workpiece. Then, the upper injection mold 101 and the lower injection mold 24 will be separated by the hydraulic rod 25. Then, the operator can take out the workpiece after the injection is completed.
[0034] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.
[0035] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.
[0036] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.
Claims
1. A protective cover injection molding die, comprising a base (1), characterized in that: The base (1) has support platforms (2) symmetrically arranged at both ends of its upper surface. The two support platforms (2) are provided with injection molding molds on their upper surfaces. One end of the base (1) is provided with an automatic release agent spraying structure (4). The automatic release agent spraying structure (4) includes a connecting base (5), an electric telescopic rod (6) arranged on the upper surface of the connecting base (5), a support base (7) arranged at the telescopic end of the electric telescopic rod (6), electric slide rails (8) symmetrically arranged at both ends of the upper surface of the support base (7), a connecting shaft (9) arranged between the two electric slide rails (8), a release agent spraying machine (10) fixedly sleeved on the connecting shaft (9), and a release agent gas tank (11) arranged below the connecting shaft (9).
2. The protective cover injection molding die according to claim 1, characterized in that: The electric slide rail (8) includes a track (12), protrusions (13) on both sides of the track (12), fixing blocks (14) at both ends of the track (12), and a drive structure (15) that is snapped onto the track (12).
3. The protective cover injection molding die according to claim 2, characterized in that: The drive structure (15) includes a fixed plate (16), a drive motor (17) disposed at the lower end corner of the fixed plate (16), a rubber wheel (18) disposed at the output end of the drive motor (17), and an annular groove (19) formed on the side of the rubber wheel (18) to fit the protrusion (13). The two fixed plates (16) are connected by the connecting shaft (9).
4. The protective cover injection molding die according to claim 1, characterized in that: The release agent spraying machine (10) includes a connecting block (20), a metal air pipe (21) disposed inside the connecting block (20), a metal branched air pipe (22) disposed at the end of the metal air pipe (21), and a double-sided spray nozzle (23) disposed at the end of the metal branched air pipe (22).
5. The protective cover injection molding die according to claim 4, characterized in that: The release agent gas canister (11) is fixedly installed on the lower surface of the connecting block (20). The release agent gas canister (11) is connected to the metal gas pipe (21), and the metal gas pipe (21) is connected to the metal branched gas pipe (22).
6. The protective cover injection molding die according to claim 1, characterized in that: The injection molding die is provided with an upper worktable (102) and a lower worktable (103). An upper injection mold (101) is provided in a groove on the lower surface of the upper worktable (102), and a lower injection mold (24) is provided in a groove on the upper surface of the lower worktable (103). The upper worktable (102) and the lower worktable (103) are connected by a hydraulic rod (25).
7. The protective cover injection molding die according to claim 6, characterized in that: A water-cooling pipe (26) is provided on the inner edge of the upper injection mold (101) near the bottom surface, and the water-cooling pipe (26) is provided on the inner edge of the lower injection mold (24) near the top surface.
8. The protective cover injection molding die according to claim 6, characterized in that: The upper injection mold (101) is provided with an injection feed pipe (27) on its upper surface. The injection feed pipe (27) extends through the upper injection mold (101) into the lower injection mold (24) and communicates with the mold groove on the upper surface of the lower injection mold (24).