An antistatic rubber product molding die
By installing a filter screen at the cooling water inlet of the rubber injection mold and adopting a quick-connect joint structure, the problem of cooling water blockage is solved, achieving efficient cooling and convenient maintenance of the mold.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGMEN POLYTECHNIC
- Filing Date
- 2025-09-30
- Publication Date
- 2026-06-30
AI Technical Summary
The lack of filtration measures at the water inlet of existing rubber injection molding molds makes the cooling water channels prone to blockage, affecting the normal use of the molds.
A filter screen is installed at the cooling water inlet of the mold, and the cooling water channel is connected and sealed through a quick-connect joint structure. The filter screen is equipped with an unlocking part and an elastomer for easy disassembly, cleaning and replacement.
It effectively prevents cooling channel blockage, ensures mold cooling effect, and improves mold reliability and ease of maintenance.
Smart Images

Figure CN224426311U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rubber mold technology, and in particular to an antistatic rubber product molding mold. Background Technology
[0002] Injection molds for producing rubber are a common type of mold used in the production of rubber products. They are made by forcibly injecting preheated and plasticized rubber material into the cavity of a mold using an injection molding machine, followed by cooling and demolding to obtain the finished product.
[0003] A mold typically includes an upper mold and a lower mold. Cooling water flows between the upper and lower molds to cool and shape the rubber. For example, Chinese Patent Publication No. CN211334455U discloses a cooling mold for producing rubber injection molding, including an upper mold and a lower mold. A hinge is provided at the right side connection between the upper and lower molds, and the upper and lower molds are connected by the hinge. A pressure module is fixedly connected to the center of the bottom of the upper mold, and a molding groove is formed at the center of the top of the lower mold. This utility model, a cooling mold for producing rubber injection molding, utilizes a first cooling groove, a second cooling groove, heat-conducting pillars, heat-conducting sheets, a water inlet groove, and a drain groove to quickly and effectively cool the rubber in the mold groove when cooling is required. This solves the problem that traditional rubber injection molding cooling molds cannot quickly and effectively cool the rubber model in the mold groove from all directions.
[0004] In actual operation, the water inlet is connected to the water supply device, but there is no filtration measure at the water inlet. The cooling water is not filtered, or after multiple cycles, the particulate impurities inside it are easy to stick and accumulate in the cooling water channel, causing blockage and affecting the normal use of the mold. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies where there is no filtration at the water inlet, and to propose an antistatic rubber product molding die.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] Design an antistatic rubber product molding die, including an upper die and a lower die. Cooling water channels are provided in both the upper die and the lower die. The upper die is provided with a first connecting component at the water inlet of the cooling water channel. The first connecting component is used to connect a water supply device. A filter screen is provided inside the connecting component.
[0008] A second connecting component is provided between the upper mold and the lower mold, and the outlet of the cooling water channel of the upper mold is connected to the cooling water channel of the lower mold through the second connecting component.
[0009] Furthermore, the first connecting component includes a first connecting pipe, which has a first stepped groove inside and through grooves communicating with the interior on both sides of the first stepped groove. The first connecting pipe is eccentrically rotated within the through grooves and has an unlocking component.
[0010] Furthermore, it also includes a second connecting pipe, the end of which is movably inserted into the first connecting pipe, and a first sealing ring is provided between the end of the second connecting pipe and the first stepped groove;
[0011] The second connecting pipe has an annular groove at its outer periphery, and the unlocking components on both sides rotate eccentrically to drive the protruding part near the rotating end to press against the annular groove.
[0012] Furthermore, a second stepped groove, an annular protrusion structure, and an elastic body are provided inside the second connecting pipe. The filter screen passes through the annular protrusion structure and abuts against the second stepped groove, and the elastic body is placed between the filter screen and the annular protrusion structure.
[0013] Furthermore, the elastic body has a ring-shaped structure and a deformation groove around its periphery. The elastic body contacts and slides against the ring-shaped protrusion through the deformation groove.
[0014] Furthermore, the second connecting assembly includes a pair of connectors, which are arranged opposite to each other and communicate with the cooling water channels of the upper mold and the lower mold respectively. The free ends of the pair of connectors are inserted into each other and the connection gap is sealed by a second sealing ring.
[0015] Furthermore, each of the pair of connectors has a rubber component slidably connected to it via a compression spring. The rubber component is used to seal the opening of the connector, and the opposite ends of the pair of rubber components extend outward to form protrusions, with the protrusions on both sides abutting each other.
[0016] The present invention provides an antistatic rubber product molding die, which has the following advantages: The present invention is provided with a first connecting pipe and a second connecting pipe. The pair of connecting pipes are sealed with the first sealing ring and are also connected and locked by unlocking parts on both sides, thereby connecting the cooling water channel and the water supply device. A filter screen is also provided inside the second connecting pipe. The filter screen can filter the circulating cooling water to prevent blockage caused by long-term flow of cooling water channel. On the other hand, the filter screen can be disassembled, cleaned and replaced by unlocking the elastomer.
[0017] When the upper and lower molds are closed, a pair of connecting parts are inserted, causing a pair of rubber parts to move relative to each other under the action of the protrusions. Then, the cooling water channels on the upper and lower sides are connected, which can cool the mold and shape the rubber. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a cross-sectional view of the present invention;
[0020] Figure 3 This is a cross-sectional view of the first connecting component of this utility model;
[0021] Figure 4 This is a cross-sectional view of the second connecting component of this utility model.
[0022] In the figure: 1. Upper mold; 2. Lower mold; 3. First connecting assembly; 31. First connecting pipe; 311. First stepped groove; 32. Unlocking component; 33. Second connecting pipe; 331. Ring groove; 332. Second stepped groove; 333. Annular protrusion structure; 34. First sealing ring; 4. Filter screen; 5. Second connecting assembly; 51. Connector; 52. Second sealing ring; 53. Compression spring; 54. Rubber component; 541. Protrusion; 6. Elastomer; 61. Deformation groove. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Reference Figure 1-4 An antistatic rubber product molding die includes an upper die 1 and a lower die 2. Cooling water channels are provided in both the upper die 1 and the lower die 2. The upper die 1 is provided with a first connecting component 3 at the water inlet of the cooling water channel. The first connecting component 3 is used to connect a water supply device. A filter screen 4 is provided inside the first connecting component 3.
[0025] A second connecting component 5 is provided between the upper mold 1 and the lower mold 2, and the outlet of the cooling water channel of the upper mold 1 is connected to the cooling water channel of the lower mold 2 through the second connecting component 5.
[0026] It should be added that the inlet of the cooling water channel of the upper mold 1 is connected to the water supply device through the first connecting component 3, and its outlet is connected to the inlet of the cooling water channel of the lower mold 2 through the second connecting component 5 when the upper and lower molds are closed. The outlet of the cooling water channel of the lower mold is connected to the circulating water pump through a water delivery hose, etc.
[0027] Specifically, filter screen 4 is used to filter the circulating cooling water.
[0028] Furthermore, the first connecting component 3 includes a first connecting pipe 31, which has a first stepped groove 311 inside and through grooves communicating with the interior on both sides of the first stepped groove 311. The first connecting pipe 31 is eccentrically rotated within the through grooves and has an unlocking component 32.
[0029] Furthermore, it also includes a second connecting pipe 33, the end of which is movably inserted into the first connecting pipe 31, and a first sealing ring 34 is provided between the end of the second connecting pipe 33 and the first stepped groove 311.
[0030] The second connecting pipe 33 has an annular groove 331 on the periphery of its end. The unlocking members 32 on both sides rotate eccentrically to drive the protruding part near the rotating end to press against the annular groove 331.
[0031] In some embodiments, the specific structures of the first connecting component 3 and the second connecting component 5 can refer to the quick-connect connector structure in the prior art;
[0032] Specifically, when the end of the second connecting pipe 33 is placed inside the first connecting pipe 31, the end of the second connecting pipe 33 passes through the through groove and abuts against the first sealing ring 34, which works with the first sealing ring 34 to prevent cooling water from overflowing through the through groove.
[0033] One of the unlocking components 32 is eccentrically rotatably connected in the through groove. When the first and second connecting pipes are inserted, the two unlocking components 32 are rotated at the same time, so that the protruding part of the rotating end of the unlocking component 32 abuts against the annular groove 331, thereby locking the first and second connecting pipes.
[0034] More specifically, the second connecting pipe 33 is provided with a second stepped groove 332, an annular protrusion structure 333 and an elastic body 6. The filter screen 4 passes through the annular protrusion structure 333 and abuts against the second stepped groove 332. The elastic body 6 is placed between the filter screen 4 and the annular protrusion structure 333.
[0035] In general, the elastic body 6 has a ring structure and a deformation groove 61 around its periphery. The elastic body 6 contacts and slides against the ring protrusion structure 333 through the deformation groove 61.
[0036] In this embodiment, the elastic body 6 is an elastic structure, and the annular protrusion structure 333 is an arc-shaped structure. Under normal circumstances, when the elastic body 6 is placed in the second connecting pipe 33, it abuts against the annular protrusion structure 333. However, under the action of the deformation groove 61, the elastic body 6 deforms and abuts against and slides against the annular protrusion structure 333. When the elastic body 6 recovers its deformation and is placed between the filter screen 4 and the annular protrusion structure 333, the filter screen 4 can be fixed.
[0037] It should be noted that the diameter of the second-stage groove 332 is larger than that of the annular protrusion structure 333, and the diameter of the filter screen 4 is between the second-stage groove 332 and the annular protrusion structure 333, so as to avoid the annular protrusion structure 333 on the one hand, and to abut against the second-stage groove 332 on the other hand.
[0038] Specifically, filter 4 can also be replaced with a filter plate.
[0039] Furthermore, the second connecting component 5 includes a pair of connectors 51, which are arranged opposite to each other and are respectively connected to the cooling water channels of the upper mold 1 and the lower mold 2. The free ends of the pair of connectors 51 are inserted into each other and the connection gap is sealed by the second sealing ring 52.
[0040] Finally, each of the pair of connectors 51 has a rubber component 54 slidably connected inside by a compression spring 53. The rubber component 54 is used to seal the opening of the connector 51, and the opposite ends of the pair of rubber components 54 extend outward to form a protrusion 541, with the protrusions 541 on both sides abutting each other.
[0041] In specific operation, when the upper mold 1 and the lower mold 2 are closed, the opposite ends of a pair of connecting parts 51 are movably inserted. At this time, the protrusions 541 on both sides abut against each other, causing the rubber parts 54 on both sides to move relative to each other, thereby connecting the pair of connecting parts 51.
[0042] Under normal circumstances, a pair of rubber parts 54, under the action of the compression spring 53, press against the opening of the connector 51 to seal and prevent the cooling water from overflowing.
[0043] Working method: During operation, the end of the second connecting pipe 33 connected to the water supply device is placed inside the first connecting pipe 31. After the port of the second connecting pipe 33 is pressed against the first sealing ring 34, the two unlocking parts 32 are rotated at the same time, so that the protruding part of the rotating end of the unlocking part 32 is pressed against the annular groove 331, thereby locking the first and second connecting pipes.
[0044] After prolonged use, the elastomer 6 can be unlocked. The elastomer 6 can be disassembled by sliding against the annular protrusion structure 333 through the deformation groove 61, and then the filter screen 4 can be taken out for replacement, etc.
[0045] When the upper mold 1 and the lower mold 2 are closed, the opposite ends of a pair of connecting parts 51 are movably inserted. At this time, the protrusions 541 on both sides abut against each other, causing the rubber parts 54 on both sides to move relative to each other, thereby connecting the pair of connecting parts 51.
[0046] Under normal circumstances, a pair of rubber parts 54, under the action of the compression spring 53, press against the opening of the connector 51 to seal and prevent the cooling water from overflowing.
[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An electrostatic prevention rubber product forming mold comprising an upper mold (1) and a lower mold (2), characterized in that: Cooling water channels are provided in both the upper mold (1) and the lower mold (2). The upper mold (1) is provided with a first connecting component (3) at the water inlet of the cooling water channel. The first connecting component (3) is used to connect the water supply device. A filter screen (4) is provided inside the first connecting component (3). A second connecting component (5) is provided between the upper mold (1) and the lower mold (2), and the outlet of the cooling water channel of the upper mold (1) is connected to the cooling water channel of the lower mold (2) through the second connecting component (5).
2. The mold for forming an antistatic rubber product according to claim 1, wherein: The first connecting component (3) includes a first connecting pipe (31), which has a first stepped groove (311) inside and a through groove connecting the inside on both sides of the first stepped groove (311) on its periphery. The first connecting pipe (31) is eccentrically rotated in the through groove and has an unlocking component (32).
3. The mold for forming an antistatic rubber product according to claim 2, wherein: It also includes a second connecting pipe (33), the end of which is movably inserted into the first connecting pipe (31), and a first sealing ring (34) is provided between the end of the second connecting pipe (33) and the first stepped groove (311). An annular groove (331) is provided on the periphery of the end of the second connecting pipe (33), and the unlocking members (32) on both sides rotate eccentrically to drive the protruding part near the rotating end to press against the annular groove (331).
4. The mold for forming an antistatic rubber product according to claim 3, wherein: The second connecting pipe (33) is provided with a second stepped groove (332), an annular protrusion structure (333) and an elastic body (6). The filter screen (4) passes through the annular protrusion structure (333) and abuts against the second stepped groove (332). The elastic body (6) is placed between the filter screen (4) and the annular protrusion structure (333).
5. The mold for forming an antistatic rubber product according to claim 4, wherein: The elastic body (6) has a ring structure and a deformation groove (61) around its periphery. The elastic body (6) contacts and slides against the ring protrusion structure (333) through the deformation groove (61).
6. The mold for forming an antistatic rubber product according to claim 1, wherein: The second connecting component (5) includes a pair of connectors (51), which are arranged opposite to each other and are respectively connected to the cooling water channels of the upper mold (1) and the lower mold (2). The free ends of the pair of connectors (51) are inserted into each other and the connection gap is sealed by a second sealing ring (52).
7. The mold for forming an antistatic rubber product according to claim 6, wherein: The interior of each pair of connectors (51) is slidably connected to a rubber component (54) via a compression spring (53). The rubber component (54) is used to seal the opening of the connector (51), and the opposite ends of each pair of rubber components (54) extend outward to form a protrusion (541), with the protrusions (541) on both sides abutting each other.