Mold device for rubber pipe production

By introducing a rotatable injection molding mechanism and a copper cooling pipe into the rubber tube production mold, the problems of inner mold rotation and uneven cooling are solved, and the injection molding efficiency and cooling effect are improved.

CN223383843UActive Publication Date: 2025-09-26HENGFENG PRECISION RUBBER (DALIAN) CO LTD
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Patent Information

Application Number
CN202422528856.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-19
Publication Date
2025-09-26
Estimated Expiration
2034-10-19

AI Technical Summary

Technical Problem

Existing rubber tube production molds do not have the internal mold rotation function, which results in slow filling of the rubber solution and uneven material injection, affecting injection efficiency.

Method used

A rotatable injection molding mechanism consisting of a connecting rod, a fixed seat, a servo motor, a reducer, a connecting seat and an inner mold was designed. The mold was driven to slide by a hydraulic cylinder and the inner mold was driven to rotate by a servo motor. Combined with a copper cooling tube and a temperature detector, uniform injection and rapid cooling were achieved.

Benefits of technology

It achieves uniform filling of rubber liquid on the outside of the inner mold, reduces injection time, improves injection efficiency, and ensures mold cooling effect through temperature detection and display.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223383843U_ABST
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Abstract

The utility model relates to the technical field of rubber tube production, and discloses a mold device for rubber tube production, which comprises a first fixing column, a second fixing column arranged on the right side of the first fixing column, a first mold arranged on the right side of the first fixing column, and a second mold arranged on the left side of the second fixing column. A third mold is arranged between the first mold and the second mold, a rotatable injection molding mechanism is arranged at the bottom end of the third mold, a first hydraulic cylinder is installed on the right side of a first fixing column, and a second hydraulic cylinder is installed on the left side of a second fixing column. After the first mold, the second mold and the third mold are tightly attached, rubber liquid is injected into the injection molding opening, meanwhile, the servo motor is started, the servo motor drives the connecting shaft and the inner mold to rotate, and therefore the outer side of the inner mold can be more evenly filled with the rubber liquid, meanwhile, the injection molding time can be shortened through mechanical rotation, and the injection molding efficiency is improved. And the injection molding efficiency of the mold device is further improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of rubber tube production, in particular to a mold device for rubber tube production. Background Art

[0002] Rubber hoses are tubular products made from rubber materials, most commonly butyl rubber, chloroprene rubber, acrylic rubber, and silicone rubber. Rubber hoses possess excellent physical and chemical properties, such as resistance to high and low temperatures, oil, acids, and alkalis, and are widely used in the automotive, machinery, medical, chemical, and food industries.

[0003] Injection molds are usually used in the production of rubber tubes. The rubber solution is injected into the molding cavity and cooled and shaped in the cavity. The injection molds used for rubber production on the market now do not have the function of rotating the inner mold after the mold is closed. The rubber solution fills the mold cavity slowly and causes uneven material injection.

[0004] Now, a mold device for producing a rubber tube is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a mold device for producing rubber tubes, so as to solve the problem of the lack of the function of rotating the inner mold proposed in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a mold device for producing rubber tubes, comprising a first fixed column, a second fixed column is provided on the right side of the first fixed column, four groups of connecting rods are fixedly connected between the right side of the first fixed column and the left side of the second fixed column, a first mold is provided on the right side of the first fixed column, a first hydraulic cylinder is installed between the first fixed column and the first mold, a second mold is provided on the left side of the second fixed column, a second hydraulic cylinder is installed between the second fixed column and the second mold, an injection port is provided inside the first mold, four groups of connecting holes are respectively provided inside the first mold and the second mold, an inner cavity is provided on one side of the first mold and the second mold, a third mold is provided between the first mold and the second mold, and a rotatable injection mechanism is provided at the bottom end of the third mold;

[0007] The rotatable injection molding mechanism includes a fixed seat, which is arranged between a first fixed column and a second fixed column. A servo motor is installed at the bottom end of the fixed seat, and a reducer is installed on the left side of the servo motor. A connecting seat is fixedly connected between the fixed seat and the third mold. A connecting shaft is provided inside the third mold and the connecting seat, and an inner mold is movably connected to the top end of the third mold.

[0008] Preferably, the output end of the servo motor is connected to a connecting shaft, and the connecting shaft is connected to the inner mold.

[0009] Preferably, the size of the connecting hole matches the connecting rod, the connecting hole can slide left and right along the connecting rod, and the connecting holes are arranged at the four corners of the first fixing column and the second fixing column.

[0010] Preferably, the outer contour of the inner mold matches the inner cavity, and the first mold, the second mold, and the third mold can fit tightly.

[0011] Preferably, a liquid inlet is installed on the upper side of the front end of the first mold and the second mold, a liquid outlet is installed on the lower side of the front end of the first mold and the second mold, and cooling pipes are installed inside the first mold and the second mold respectively.

[0012] Preferably, the liquid inlet and liquid outlet cooling pipes are internally connected, and the cooling pipes are made of copper.

[0013] Preferably, a temperature detector is installed at the top of the interior of the second mold, and a first display light and a second display light are installed at the top of the front end of the second mold.

[0014] Preferably, the temperature detector, the first display light and the second display light are electrically connected, and the temperature detector detects a range of 0 degrees to 300 degrees.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the mold device for rubber tube production not only realizes the rotation of the inner mold, but also realizes the cooling of the mold and the detection and display of the temperature;

[0016] (1) A connecting rod, a fixing seat, a servo motor, a speed reducer, a connecting seat, an inner mold and a connecting shaft are provided. When in use, a first hydraulic cylinder is installed on the right side of the first fixing column, and a second hydraulic cylinder is installed on the left side of the second fixing column. By starting the first hydraulic cylinder and the second hydraulic cylinder, the connecting holes in the first mold and the second mold are matched with the size of the connecting rod, so that the first mold and the second mold can slide left and right on the connecting rod. When the first mold, the second mold and the third mold are tightly fitted, rubber liquid is injected into the injection port. At the same time, the servo motor is started, and the speed reducer can effectively control the speed of the servo motor. The servo motor drives the rotation of the connecting shaft and the inner mold, so that the rubber liquid can be filled more evenly on the outer side of the inner mold. At the same time, the mechanical rotation can reduce the injection time, thereby improving the injection efficiency of the mold device;

[0017] (2) By providing a liquid inlet, a liquid outlet and a cooling pipe, when in use, after the first mold, the second mold and the third mold are closed and the injection molding is completed, the coolant is injected into the liquid inlet. The cooling pipe adopts a copper coil. The cooling pipe has a larger contact area with the mold and has a good heat dissipation function. The coolant passes through the cooling pipe and is discharged from the liquid outlet, thereby cooling the mold;

[0018] (3) By providing a temperature detector, a first display light and a second display light, when in use, after the first mold, the second mold and the third mold are closed to complete the injection molding, the cooling pipe cools the mold while the temperature detector at the top of the second mold detects the temperature of the rubber product in real time. When the temperature is higher than 40 degrees, the first display light is turned on. When the temperature is lower than 40 degrees, the first display light is turned off and the second display light is turned on, thereby realizing the detection and display of the temperature and further completing the cooling of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0020] Figure 2 This is a schematic diagram of the top structure of the utility model;

[0021] Figure 3 This is a side structural diagram of the first mold of the present invention;

[0022] Figure 4 This is a schematic side sectional structural diagram of the second mold of the present invention;

[0023] Figure 5 For the utility model Figure 1 Schematic diagram of the local structure at point A;

[0024] Figure 6 For the utility model Figure 1 Schematic diagram of the local structure at point B in the middle.

[0025] In the figure: 1. First fixed column; 2. Second fixed column; 3. First mold; 4. Second mold; 5. Third mold; 6. First hydraulic cylinder; 7. Second hydraulic cylinder; 8. Connecting rod; 9. Fixed seat; 10. Servo motor; 11. Reducer; 12. Connecting seat; 13. Inner mold; 14. Connecting shaft; 15. Injection port; 16. Connecting hole; 17. Inner cavity; 18. Liquid inlet; 19. Liquid outlet; 20. Cooling pipe; 21. Temperature detector; 22. First display light; 23. Second display light. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1: Please refer to Figure 1-6 , a mold device for rubber tube production, comprising a first fixed column 1, a second fixed column 2 is provided on the right side of the first fixed column 1, four groups of connecting rods 8 are fixedly connected to the right side of the first fixed column 1 and the left side of the second fixed column 2, a first mold 3 is provided on the right side of the first fixed column 1, a first hydraulic cylinder 6 is installed between the first fixed column 1 and the first mold 3, a second mold 4 is provided on the left side of the second fixed column 2, a second hydraulic cylinder 7 is installed between the second fixed column 2 and the second mold 4, an injection port 15 is provided inside the first mold 3, four groups of connecting holes 16 are respectively provided inside the first mold 3 and the second mold 4, an inner cavity 17 is provided on one side of the first mold 3 and the second mold 4, a third mold 5 is provided between the first mold 3 and the second mold 4, and a rotatable injection mechanism is provided at the bottom end of the third mold 5;

[0028] See also Figure 1-6 A mold device for producing a rubber tube also includes a rotatable injection molding mechanism, which includes a fixed base 9, which is arranged between a first fixed column 1 and a second fixed column 2. A servo motor 10 is installed at the bottom end of the fixed base 9, and a reducer 11 is installed on the left side of the servo motor 10. A connecting base 12 is fixedly connected between the fixed base 9 and the third mold 5. A connecting shaft 14 is provided inside the third mold 5 and the connecting base 12. The top of the third mold 5 is movably connected to an inner mold 13;

[0029] The output end of the servo motor 10 is connected to the connecting shaft 14, which is connected to the inner mold 13. The size of the connecting hole 16 matches the connecting rod 8. The connecting hole 16 can slide left and right along the connecting rod 8. The connecting holes 16 are set at the four corners of the first fixed column 1 and the second fixed column 2. The outer contour of the inner mold 13 matches the inner cavity 17, and the first mold 3, the second mold 4, and the third mold 5 can fit tightly together.

[0030] Specifically, if Figure 1 、 Figure 2 Figure 3 and Figure 5As shown, when in use, the first hydraulic cylinder 6 is installed on the right side of the first fixed column 1, and the second hydraulic cylinder 7 is installed on the left side of the second fixed column 2. By starting the first hydraulic cylinder 6 and the second hydraulic cylinder 7, the connecting holes 16 in the first mold 3 and the second mold 4 are matched with the connecting rod 8 in size, so that the first mold 3 and the second mold 4 can slide left and right on the connecting rod 8. When the first mold 3, the second mold 4 and the third mold 5 are tightly fitted, rubber liquid is injected into the injection port 15. At the same time, the servo motor 10 is started, and the reducer 11 can effectively control the speed of the servo motor 10. The servo motor 10 drives the rotation of the connecting shaft 14 and the inner mold 13, so that the rubber liquid can be filled more evenly on the outside of the inner mold 13. At the same time, the mechanical rotation can reduce the injection time, thereby improving the injection efficiency of the mold device.

[0031] Example 2: A liquid inlet 18 is installed on the upper side of the front end of the first mold 3 and the second mold 4, and a liquid outlet 19 is installed on the lower side of the front end of the first mold 3 and the second mold 4. Cooling pipes 20 are installed inside the first mold 3 and the second mold 4 respectively. The liquid inlet 18 and the liquid outlet 19 are internally connected to the cooling pipes 20. The cooling pipes 20 are made of copper.

[0032] Specifically, if Figure 1 、 Figure 4 As shown, when in use, after the first mold 3, the second mold 4, and the third mold 5 are closed and the injection molding is completed, coolant is injected into the liquid inlet 18. The cooling tube 20 is made of a copper coil. The cooling tube 20 has a larger contact area with the mold and has a good heat dissipation function. The coolant passes through the cooling tube 20 and is discharged from the liquid outlet 19, thereby cooling the mold.

[0033] Example 3: A temperature detector 21 is installed at the top of the interior of the second mold 4. A first display light 22 and a second display light 23 are installed at the top of the front end of the second mold 4. The temperature detector 21, the first display light 22, and the second display light 23 are electrically connected. The temperature detector 21 detects a temperature range of 0 to 300 degrees.

[0034] Specifically, if Figure 1 、 Figure 2 and Figure 5 As shown, when in use, after the first mold 3, the second mold 4, and the third mold 5 are closed to complete the injection molding, the cooling tube 20 cools the mold while the temperature detector 21 at the top end of the second mold 4 detects the temperature of the rubber product in real time. When the temperature is higher than 40 degrees, the first display light 22 is turned on. When the temperature is lower than 40 degrees, the first display light 22 is off and the second display light 23 is turned on, thereby realizing the detection and display of the temperature, and then completing the cooling of the mold.

[0035] Working principle: When the utility model is in use, first, when in use, the first hydraulic cylinder 6 is installed on the right side of the first fixed column 1, and the second hydraulic cylinder 7 is installed on the left side of the second fixed column 2. By starting the first hydraulic cylinder 6 and the second hydraulic cylinder 7, the connecting holes 16 in the first mold 3 and the second mold 4 match the size of the connecting rod 8, so that the first mold 3 and the second mold 4 can slide left and right on the connecting rod 8. When the first mold 3, the second mold 4 and the third mold 5 are tightly fitted, rubber liquid is injected into the injection port 15. At the same time, the servo motor 10 is started, and the reducer 11 can effectively control the speed of the servo motor 10. The servo motor 10 drives the rotation of the connecting shaft 14 and the inner mold 13, so that the rubber liquid can be filled more evenly on the outside of the inner mold 13. At the same time, the machine Mechanical rotation can reduce the injection time, thereby improving the injection efficiency of the mold device. Secondly, when the first mold 3, the second mold 4, and the third mold 5 are closed and the injection is completed, coolant is injected into the liquid inlet 18. The cooling tube 20 adopts a copper coil. The cooling tube 20 has a larger contact area with the mold and has a good heat dissipation function. The coolant passes through the cooling tube 20 and is discharged from the liquid outlet 19, thereby realizing the cooling of the mold. The temperature detector 21 at the top of the second mold 4 detects the temperature of the rubber product in real time. When the temperature is higher than 40 degrees, the first display light 22 is turned on. When the temperature is lower than 40 degrees, the first display light 22 goes out. At this time, the second display light 23 is turned on, thereby realizing the detection and display of the temperature, thereby completing the cooling of the mold.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A mold device for producing a rubber tube, comprising a first fixed column (1), characterized in that: A second fixed column (2) is provided on the right side of the first fixed column (1), four groups of connecting rods (8) are fixedly connected between the right side of the first fixed column (1) and the left side of the second fixed column (2), a first mold (3) is provided on the right side of the first fixed column (1), a first hydraulic cylinder (6) is installed between the first fixed column (1) and the first mold (3), a second mold (4) is provided on the left side of the second fixed column (2), a second hydraulic cylinder (7) is installed between the second fixed column (2) and the second mold (4), an injection port (15) is provided inside the first mold (3), four groups of connecting holes (16) are provided inside the first mold (3) and the second mold (4), and an inner cavity (17) is provided on one side of the first mold (3) and the second mold (4), respectively, a third mold (5) is provided between the first mold (3) and the second mold (4), and a rotatable injection mechanism is provided at the bottom end of the third mold (5); The rotatable injection molding mechanism comprises a fixed seat (9), the fixed seat (9) being arranged between a first fixed column (1) and a second fixed column (2), a servo motor (10) being installed at the bottom end of the fixed seat (9), a reducer (11) being installed on the left side of the servo motor (10), a connecting seat (12) being fixedly connected between the fixed seat (9) and the third mold (5), a connecting shaft (14) being arranged inside the third mold (5) and the connecting seat (12), and an inner mold (13) being movably connected to the top end of the third mold (5).

2. The mold device for rubber tube production according to claim 1, characterized in that: The output end of the servo motor (10) is connected to a connecting shaft (14), and the connecting shaft (14) is connected to the inner mold (13).

3. The mold device for rubber tube production according to claim 1, characterized in that: The size of the connecting hole (16) matches the connecting rod (8), and the connecting hole (16) can slide left and right along the connecting rod (8). The connecting hole (16) is set at the four corners of the first fixing column (1) and the second fixing column (2).

4. The mold device for rubber tube production according to claim 1, characterized in that: The outer contour of the inner mold (13) matches the inner cavity (17), and the first mold (3), the second mold (4), and the third mold (5) can fit tightly together.

5. The mold device for rubber tube production according to claim 1, characterized in that: A liquid inlet (18) is installed on the upper side of the front end of the first mold (3) and the second mold (4), a liquid outlet (19) is installed on the lower side of the front end of the first mold (3) and the second mold (4), and cooling pipes (20) are installed inside the first mold (3) and the second mold (4), respectively.

6. The mold device for producing a rubber tube according to claim 5, characterized in that: The liquid inlet (18), the liquid outlet (19) and the cooling pipe (20) are internally connected, and the cooling pipe (20) is made of copper.

7. The mold device for rubber tube production according to claim 1, characterized in that: A temperature detector (21) is installed at the top end of the interior of the second mold (4), and a first display light (22) and a second display light (23) are installed at the top end of the front end of the second mold (4).

8. The mold device for producing rubber tubes according to claim 7, characterized in that: The temperature detector (21), the first display light (22), and the second display light (23) are electrically connected, and the temperature detector (21) detects a temperature range of 0 to 300 degrees.