Injection mold cooling channel connection structure

Abstract

The utility model provides a kind of injection mold cooling pipeline connecting structure, it is related to pipeline connecting technical field, comprising: connecting pipe fitting and cooling pipe fitting, the both ends of connecting pipe fitting are installed in the side end of cooling pipe fitting;The outside of connecting pipe fitting is equipped with two adjacent locating rings;The side end outside of connecting pipe fitting is equipped with locating piece;The outside of both ends of connecting pipe fitting is equipped with multiple movable grooves;Rotary mounting has rotating clamping plate in the inside of movable groove;The side of rotating clamping plate is equipped with slot, and the side end of rotating clamping plate is slidably installed in the outside of locating piece. By air injection into strong elastic sealing ring through inlet valve, air enters into weak elastic sealing ring through flow guide pipe, flat weak elastic sealing ring gradually expands to seal connecting pipe fitting and cooling pipe fitting, ensure the tightness of pipeline connection, solve the problem that pipeline can be deformed due to thermal expansion and contraction effect, and this deformation leads to gap in pipeline connection part.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection technology, and in particular to a cooling pipeline connection structure for injection molds. Background Technology

[0002] The purpose of injection mold cooling is to quickly remove the heat released by the molten plastic in the mold cavity, so that the plastic product can be cooled and solidified quickly to achieve the required shape and performance. In the injection mold cooling process, cooling is mainly achieved by injecting refrigerant through pipes. Since there are many cooling pipes and they are quite long, a connecting structure is needed to connect the pipes to ensure the rapid flow of refrigerant to cool the injection mold.

[0003] In the existing technology, when the pipe connection structure is in use, the refrigerant flowing inside the pipe is used to cool the injection mold. Due to the large temperature fluctuations during the operation of the injection mold, the pipe will deform due to the thermal expansion and contraction effect. This deformation will cause gaps to appear at the pipe connection. As the usage time increases, these gaps may gradually widen, leading to refrigerant leakage. Utility Model Content

[0004] This utility model relates to a cooling pipe connection structure for injection molds, which solves the problem that due to large temperature fluctuations during the operation of injection molds, the pipes will deform due to thermal expansion and contraction. This deformation will cause gaps at the pipe connection points. As the service time increases, these gaps may gradually widen, leading to refrigerant leakage.

[0005] This utility model provides a cooling pipe connection structure for injection molds, specifically including: a connecting pipe and a cooling pipe. The connecting pipe is a tubular structure, and both ends of the connecting pipe are installed on the side ends of the cooling pipe. Two adjacent positioning rings are provided on the outer side of the connecting pipe, and a storage groove is provided on the inner side of the connecting pipe, wherein the storage groove is annular. A positioning element is provided on the outer side of the side end of the connecting pipe. Multiple movable grooves are opened on the outer sides of both ends of the connecting pipe. A rotating clamping plate is rotatably installed inside the movable groove. The side of the rotating clamping plate is slotted, and the side end of the rotating clamping plate is slidably installed on the outer side of the positioning element.

[0006] Furthermore, an inner guide plate is installed on the inner side of the connecting pipe; the inner guide plate is also installed on the inner side of the side end of the cooling pipe, and a baffle is provided on the inner side of the inner guide plate, and a buffer is provided on the inner side of the inner guide plate.

[0007] Furthermore, a high-elasticity sealing ring is installed on the inner side of the positioning ring; the high-elasticity sealing ring has an annular structure, and an air inlet is installed on the outer side of the high-elasticity sealing ring, while a guide pipe is installed on the inner side of the high-elasticity sealing ring.

[0008] Furthermore, a weak elastic sealing ring is installed on the outer side of both ends of the guide pipe through the connecting pipe fitting; the weak elastic sealing ring is an elastic structure, and the weak elastic sealing ring is located inside the storage tank and the positioning component, and the elasticity of the weak elastic sealing ring is less than that of the strong elastic sealing ring.

[0009] Furthermore, rotating ring plates are rotatably mounted on the outer sides of both ends of the connecting pipe fitting; the rotating ring plates are annular structures, and guide rods are provided on the sides of the rotating ring plates; the guide rods are slidably mounted in the slots on the sides of the rotating ring plates; positioning side plates are mounted on the outer sides of the rotating ring plates; and four positioning holes are provided on the sides of the positioning side plates.

[0010] Furthermore, a positioning block is installed at the middle position on the outer side of the connecting pipe; positioning rods are installed on both sides of the positioning block, wherein the positioning rods are cylindrical structures; springs are installed on both sides of the positioning block, and connecting plates are installed on both sides of the positioning block through the springs, and fixing rods are installed on the sides of the connecting plates.

[0011] Furthermore, the fixing rod has a cylindrical structure, and the inner end of the fixing rod has an opening, while the outer end of the fixing rod is inserted into the positioning hole; the positioning rod is slidably installed in the opening at the inner end of the fixing rod.

[0012] This utility model provides a cooling pipe connection structure for injection molds, which has the following beneficial effects:

[0013] In use, this invention injects airflow into the strong elastic sealing ring through the air inlet valve, which then flows into the weak elastic sealing ring through the guide pipe. The flat, weak elastic sealing ring gradually expands, forming a sealing barrier between the connecting pipes and cooling pipes, effectively preventing the loss of internal refrigerant and ensuring the efficient operation of the cooling system. When the cooling pipes contract due to the thermal expansion and contraction of the refrigerant, the airflow inside the strong elastic sealing ring is forced into the weak elastic sealing ring because the elasticity of the strong elastic sealing ring is significantly greater than that of the weak elastic sealing ring. This ensures that the weak elastic sealing ring always maintains a tight fit with the outer side of the cooling pipe, effectively preventing leakage caused by thermal expansion and contraction and ensuring the tightness of the pipe connection.

[0014] In addition, by rotating the rotating ring plate, the guide rod drives the rotating clamp plate to move and install on the outside of the positioning part in the movable groove, so as to achieve precise positioning of the cooling pipes. This effectively avoids problems such as leakage and loosening caused by inaccurate connection, ensures the stability of the cooling pipe connection, effectively resists the risk of cooling pipes falling off due to factors such as equipment vibration and refrigerant pressure changes, and ensures the stable operation of the injection mold. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0016] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the present invention.

[0017] In the attached diagram:

[0018] Figure 1 A schematic diagram of the overall structure of this utility model is shown;

[0019] Figure 2 A cross-sectional view of the connecting pipe fitting of this utility model is shown;

[0020] Figure 3 A three-dimensional structural diagram of the high-elasticity sealing ring of this utility model is shown;

[0021] Figure 4 This diagram shows a side view of the weak elasticity sealing ring of this utility model.

[0022] Figure 5 A three-dimensional structural diagram of the rotating ring plate of this utility model is shown;

[0023] Figure 6 A three-dimensional structural diagram of the rotating card plate of this utility model is shown.

[0024] List of reference numerals

[0025] 1. Connecting pipe fittings; 101. Cooling pipe fittings; 102. Inner guide plate; 103. Buffer components;

[0026] 2. Positioning ring; 201. Storage tank; 202. Positioning component; 203. High-elasticity sealing ring; 204. Air inlet valve port; 205. Guide pipe; 206. Low-elasticity sealing ring;

[0027] 3. Movable groove; 301. Rotating clamping plate; 302. Rotating ring plate; 303. Guide rod; 304. Positioning side plate; 305. Positioning hole; 306. Positioning block; 307. Positioning rod; 308. Fixing rod. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] Please refer to Figures 1 to 6 :

[0030] Example 1: This utility model proposes a cooling pipe connection structure for injection molds, including: a connecting pipe 1 and a cooling pipe 101. The connecting pipe 1 is a tubular structure, and both ends of the connecting pipe 1 are installed on the side ends of the cooling pipe 101. A flow guide inner plate 102 is installed on the inner side of the connecting pipe 1. The flow guide inner plate 102 is also installed on the inner side of the side end of the cooling pipe 101, and a partition is provided on the inner side of the flow guide inner plate 102. A buffer member 103 is provided on the inner side of the flow guide inner plate 102.

[0031] In this embodiment, when the injection mold pipes are connected, the cooling pipe 101 is used as a pipe for guiding the coolant in the injection mold. The side end of the cooling pipe 101 is installed inside both ends of the connecting pipe 1, so that the inner guide plate 102 is inside the cooling pipe 101. The buffer 103 inside the inner guide plate 102 is relatively soft, so that the buffer 103 can buffer the vibration generated by the fluid flowing inside the pipe, reduce the vibration problem caused by the connecting pipe 1, prevent the connection from loosening due to long-term vibration, and ensure the stability of the connection between the connecting pipe 1 and the cooling pipe 101.

[0032] In Example 2, based on Example 1, two adjacent positioning rings 2 are provided on the outer side of the connecting pipe fitting 1, and a storage tank 201 is provided on the inner side of the connecting pipe fitting 1, wherein the storage tank 201 has an annular structure; a positioning element 202 is provided on the outer side of the side end of the connecting pipe fitting 1; a strong elastic sealing ring 203 is installed on the inner side of the positioning ring 2; the strong elastic sealing ring 203 has an annular structure, and an air inlet 204 is installed on the outer side of the strong elastic sealing ring 203, and the strong elastic sealing ring 203... A guide pipe 205 is installed on the inner side; the guide pipe 205 passes through both ends of the connecting pipe 1 and a weak elastic sealing ring 206 is installed on the outer side; the weak elastic sealing ring 206 is an elastic structure, and the weak elastic sealing ring 206 is located inside the storage tank 201 and the positioning member 202, and the elasticity of the weak elastic sealing ring 206 is less than that of the strong elastic sealing ring 203. When the injection mold pipe is connected, the strong elastic sealing ring 203 and the weak elastic sealing ring 206 are inflated. When the cooling pipe 101 is flat, its side end is inserted into the inner sides of both ends of the connecting pipe 1, so that the weak elastic sealing ring 206 in the storage tank 201 is inside the positioning member 202. Airflow is injected into the interior of the strong elastic sealing ring 203 through the air inlet valve port 204. The airflow enters the interior of the weak elastic sealing ring 206 through multiple guide pipes 205. After the weak elastic sealing ring 206 expands, it seals the two ends of the connecting pipe 1 and the side end of the cooling pipe 101, reducing the problem of internal refrigerant loss. When the cooling pipe 101 is affected by the thermal expansion and contraction of the refrigerant and shrinks, since the elasticity of the strong elastic sealing ring 203 is greater than that of the weak elastic sealing ring 206, the airflow inside the strong elastic sealing ring 203 is forced into the interior of the weak elastic sealing ring 206, so that the weak elastic sealing ring 206 continuously seals the outer side of the cooling pipe 101, preventing leakage caused by thermal expansion and contraction, and continuously ensuring the tightness of the pipe connection.

[0033] In Example 3, based on Example 1, multiple movable grooves 3 are formed on the outer sides of both ends of the connecting pipe fitting 1; a rotating clamping plate 301 is rotatably installed inside the movable groove 3; the side of the rotating clamping plate 301 is provided with a slot, and the side end of the rotating clamping plate 301 is slidably installed on the outside of the positioning member 202; a rotating ring plate 302 is rotatably installed on the outer sides of both ends of the connecting pipe fitting 1; the rotating ring plate 302 has a ring structure, and a guide rod 303 is provided on the side of the rotating ring plate 302; the guide rod 303 is slidably installed on the side of the rotating clamping plate 301. Inside the groove; a positioning side plate 304 is installed on the outer side of the rotating ring plate 302; four positioning holes 305 are provided on the side of the positioning side plate 304; a positioning block 306 is installed at the middle position on the outer side of the connecting pipe fitting 1; positioning rods 307 are installed on both sides of the positioning block 306, wherein the positioning rods 307 are cylindrical structures; springs are installed on both sides of the positioning block 306, and connecting plates are installed on both sides of the positioning block 306 through the springs, and fixing rods 308 are installed on the side of the connecting plates; the fixing rods 308 are cylindrical structures, and the fixing rods 308 are cylindrical structures. The inner end of the fixed rod 308 is provided with an opening, and the outer end of the fixed rod 308 is inserted into the positioning hole 305. The positioning rod 307 is slidably installed in the opening at the inner end of the fixed rod 308. When the injection mold pipe is connected, the side end of the cooling pipe 101 is inserted into the inner side of both ends of the connecting pipe 1. The rotating ring plate 302 is rotated on the outer side of both ends of the connecting pipe 1. The rotating ring plate 302 drives the guide rod 303 on the side to move inside the rotating clamping plate 301, so that the rotating clamping plate 301 moves inside the movable groove 3, so that the rotating clamping plate 301 moves inside the movable groove 3. After internal rotation, the rotating plate 301 is installed on the outside of the positioning component 202, so that the rotating plate 301 positions the cooling pipe 101. On both sides of the positioning block 306, the fixing rod 308 is moved outside the positioning rod 307 by springs, so that the outer end of the fixing rod 308 is inserted into the positioning hole 305 on the side of the moving positioning side plate 304, thereby fixing the position of the rotating ring plate 302 and fixing the position of the rotating plate 301, preventing the cooling pipe 101 from falling off and ensuring the stability of the connection of the cooling pipe 101.

[0034] The working principle of this embodiment is as follows: The side end of the cooling pipe 101 is inserted into the inner sides of both ends of the connecting pipe 1. Rotating the rotating ring plate 302 drives the guide rod 303 on the side to move inside the rotating clamping plate 301. The rotating clamping plate 301 is rotated and installed inside the movable groove 3 on the outside of the positioning member 202 to position the cooling pipe 101. The springs on both sides of the positioning block 306 drive the fixing rod 308 to be inserted into the positioning hole 305 to fix the rotating ring plate 302. The weak elastic sealing ring 206 in the storage tank 201 is located inside the positioning member 202. Airflow is injected into the strong elastic sealing ring 203 through the air inlet valve port 204. The airflow enters through multiple guide pipes 205. The weak elastic sealing ring 206 expands to seal between the connecting pipe 1 and the cooling pipe 101. When the cooling pipe 101 shrinks due to the thermal expansion and contraction of the refrigerant, the airflow inside the strong elastic sealing ring 203 is forced into the weak elastic sealing ring 206 because the elasticity of the strong elastic sealing ring 203 is greater than that of the weak elastic sealing ring 206. This continuously seals the outer side of the cooling pipe 101. The inner guide plate 102 is located inside the cooling pipe 101. The buffer 103 inside the inner guide plate 102 is relatively soft and buffers the vibration of the fluid flowing inside the pipe, ensuring the stability of the connection between the connecting pipe 1 and the cooling pipe 101.

[0035] The following points should be noted in this article:

[0036] 1. The accompanying drawings of this utility model embodiment only involve the structure involved in this utility model embodiment; other structures can refer to general designs.

[0037] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0038] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A cooling pipe connection structure for an injection mold, comprising: A connecting pipe (1) and a cooling pipe (101) are provided, with both ends of the connecting pipe (1) installed on the side end of the cooling pipe (101); characterized in that, two adjacent positioning rings (2) are provided on the outer side of the connecting pipe (1), and a storage tank (201) is also provided on the inner side of the connecting pipe (1); a positioning element (202) is provided on the outer side of the side end of the connecting pipe (1); multiple movable grooves (3) are opened on the outer side of both ends of the connecting pipe (1); a rotating plate (301) is rotatably installed inside the movable groove (3); the side of the rotating plate (301) is provided with a slot, and the side end of the rotating plate (301) is slidably installed on the outer side of the positioning element (202).

2. The injection mold cooling pipe connection structure according to claim 1, characterized in that, The inner side of the connecting pipe (1) is equipped with a flow guide inner plate (102); the flow guide inner plate (102) is also installed on the inner side of the side end of the cooling pipe (101), and the inner side of the flow guide inner plate (102) is provided with a partition and the inner side of the flow guide inner plate (102) is provided with a buffer (103).

3. The injection mold cooling pipe connection structure according to claim 2, characterized in that, A strong elastic sealing ring (203) is installed on the inner side of the positioning ring (2); an air inlet valve (204) is installed on the outer side of the strong elastic sealing ring (203), and a guide pipe (205) is installed on the inner side of the strong elastic sealing ring (203).

4. The injection mold cooling pipe connection structure according to claim 3, characterized in that, The guide pipe (205) is connected to the outer side of both ends of the connecting pipe (1) and a weak elastic sealing ring (206) is installed; the weak elastic sealing ring (206) is located inside the storage tank (201) and the positioning member (202), and the elasticity of the weak elastic sealing ring (206) is less than that of the strong elastic sealing ring (203).

5. The injection mold cooling pipe connection structure according to claim 4, characterized in that, Rotary ring plates (302) are rotatably installed on the outer sides of both ends of the connecting pipe fitting (1); guide rods (303) are provided on the side of the rotating ring plate (302); the guide rods (303) are slidably installed in the slots on the side of the rotating clamping plate (301); positioning side plates (304) are installed on the outer side of the rotating ring plate (302); four positioning holes (305) are provided on the side of the positioning side plate (304).

6. The injection mold cooling pipe connection structure according to claim 5, characterized in that, A positioning block (306) is installed at the middle position on the outer side of the connecting pipe (1); positioning rods (307) are installed on both sides of the positioning block (306); springs are installed on both sides of the positioning block (306), and connecting plates are installed on both sides of the positioning block (306) via the springs, and fixing rods (308) are installed on the side of the connecting plates.

7. The injection mold cooling pipe connection structure according to claim 6, characterized in that, The inner end of the fixing rod (308) is provided with an opening, and the outer end of the fixing rod (308) is inserted into the positioning hole (305); the positioning rod (307) is slidably installed in the opening at the inner end of the fixing rod (308).

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