A replaceable tee pipe preparation hot press die

By designing a limiting sleeve and retaining ring structure, the problem of time-consuming position adjustment during inner mold replacement was solved, enabling rapid and accurate positioning and efficient installation of the inner mold, thereby improving production efficiency.

CN224588436UActive Publication Date: 2026-08-04HEBEI CANGHAI PIPE FITTINGS GROUP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI CANGHAI PIPE FITTINGS GROUP
Filing Date
2025-09-05
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Changing the inner mold requires a considerable amount of time for position adjustment, which affects production efficiency.

Method used

A limiting sleeve and retaining ring structure was designed. The retaining ring guides the installation direction of the inner mold. Combined with the use of the limiting sleeve and hook, the inner mold can be accurately positioned and quickly installed.

Benefits of technology

This reduces the number of position adjustments required during the inner mold installation process, improving assembly accuracy and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a replaceable tee pipe preparation hot -pressing mould, including outer mould and the inner mould of installation in the inside of outer mould, the lower end round outer wall inside of inner mould is equipped with through -hole, the both ends outer wall of outer mould all are fixedly connected with the limiting sleeve to the installation position of limiting inner mould, the inside of two limiting sleeve all is provided with the baffle ring, through installing baffle ring, when will install inner mould in the inside of outer mould, can baffle ring from limiting sleeve upward pull out, when hoisting and installing in the inside of outer mould, can through the baffle ring of inner mould collision, guide the trend of inner mould to the inside of outer mould, and operating personnel can be according to the position and collision feedback of baffle ring, real -time adjustment inner mould's moving direction, ensure that inner mould can accurately enter the inside of outer mould, reduce the position adjustment times in the installation process, make inner mould can be accurately installed in the inside of outer mould according to design requirement, guarantee the assembly accuracy of mould whole.
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Description

Technical Field

[0001] This utility model belongs to the technical field of mold processing, specifically relating to a replaceable three-way valve spare hot pressing mold. Background Technology

[0002] Replaceable tee pipe spare hot press molds are key tools specifically designed for manufacturing tee pipes. They use a hot pressing process to shape specific materials into tee pipe shapes. The unique feature of these molds is their replaceability, allowing them to adapt to the production needs of various specifications and types of tee pipes, greatly improving production flexibility and efficiency.

[0003] However, when replacing the inner mold, it takes a long time to adjust its position before placing it inside the outer mold, which makes the entire replacement process time-consuming and affects production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a replaceable three-way valve spare hot press mold to solve the problem mentioned in the background art that it takes a long time to adjust the position of the inner mold when replacing it.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a replaceable tee pipe spare hot pressing mold, including an outer mold and an inner mold installed inside the outer mold;

[0006] The inner mold has a through hole inside the lower circular outer wall;

[0007] Limit sleeves are fixedly connected to the outer walls of both the left and right ends of the outer mold to restrict the installation position of the inner mold;

[0008] Both of the aforementioned limiting sleeves are equipped with retaining rings inside.

[0009] Preferably, the upper outer walls of both limiting sleeves are provided with upward-opening guide grooves to limit the position of the retaining rings, and the lowermost sides of the front and rear outer walls of both retaining rings are fixedly connected with limiting plates to limit the maximum upward movement of the retaining rings.

[0010] Preferably, multiple stop bars are fixedly connected between the inner walls of the front and rear ends of the two retaining rings.

[0011] Preferably, guide plates are fixedly connected to the upper outer walls of both retaining rings, and the inner circular outer walls of the right ends of both guide plates are provided with through openings for the hooks of external lifting equipment to be fixed.

[0012] Preferably, a fixing seat is fixedly connected to the lower circular outer wall of the inner mold.

[0013] Preferably, positioning grooves are provided on the outer walls of both the left and right ends of the outer mold near the front side, and multiple fixing plates are fixedly connected to the outer walls of both the left and right ends of the outer mold near the front and rear sides respectively, so as to restrict the position of the outer mold with bolts between it and the designated position in the workplace.

[0014] Preferably, a base is fixedly connected to the lower outer wall of the outer mold to support and distribute the pressure during hot pressing.

[0015] Preferably, the upper outer wall of the inner mold is fixedly connected with lifting rings near the left and right sides, so that external lifting equipment can drive the inner mold to start.

[0016] Compared with the prior art, this utility model provides a replaceable tee pipe spare hot pressing mold, which has the following beneficial effects:

[0017] By installing a retaining ring, when the inner mold is installed inside the outer mold, the retaining ring can be pulled upward from the limiting sleeve. When the inner mold is lifted and installed into the outer mold, the inner mold can be guided towards the outer mold by colliding with the retaining ring. The operator can adjust the movement direction of the inner mold in real time based on the position of the retaining ring and the collision feedback to ensure that the inner mold can accurately enter the outer mold, reducing the number of position adjustments during the installation process. After the retaining ring is pulled upward from the limiting sleeve, its position is relatively fixed and precise, providing a clear guiding benchmark for the installation of the inner mold. The inner mold gradually approaches the correct installation position during the collision with the retaining ring, which helps to ensure the relative positional accuracy of the inner mold and the outer mold, so that the inner mold can be accurately installed inside the outer mold according to the design requirements, ensuring the overall assembly accuracy of the mold. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a replaceable three-way valve backup hot pressing mold structure according to the present invention.

[0019] Figure 2 This is a partial structural schematic diagram of the frontal cross-section of the inner mold area of ​​this utility model.

[0020] Figure 3 This is a partial structural diagram of the retaining ring area of ​​this utility model.

[0021] Figure 4 This is a partial structural schematic diagram of the side cross-section of the retaining ring area of ​​this utility model.

[0022] In the diagram: 1. Base; 2. Outer mold; 3. Positioning groove; 4. Fixing plate; 5. Limiting sleeve; 6. Inner mold; 7. Lifting ring; 8. Through hole; 9. Fixing seat; 10. Retaining ring; 11. Through opening; 12. Guide plate; 13. Guide groove; 14. Limiting plate; 15. Stop bar. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides, for example Figure 1-4 The replaceable tee pipe spare hot press mold shown includes an outer mold 2 and an inner mold 6 installed inside the outer mold 2;

[0025] A through hole 8 is provided inside the lower circular outer wall of the inner mold 6;

[0026] Limit sleeves 5 are fixedly connected to the outer walls of both ends of the outer mold 2 to restrict the installation position of the inner mold 6. A crane is used to lift the inner mold 6 and slowly approach it towards the outer mold 2. The operator adjusts the direction of the inner mold 6 to ensure it accurately enters the outer mold 2, ensuring it is smoothly installed within the limiting range of the limit sleeves 5. After installation, check if the relative position of the inner mold 6 and the outer mold 2 meets the requirements. If there is a deviation, make appropriate adjustments. Based on the material requirements of the tee pipe, prepare the corresponding thermoplastic granules or sheets. Place the processed raw materials evenly in the cavity between the inner mold 6 and the outer mold 2. Start the heating system. During the heating process, the temperature is monitored by an external temperature sensor. The mold temperature is monitored in real time, and the temperature signal is fed back to the external controller. The controller automatically adjusts the power of the heating system according to the preset temperature to ensure that the mold temperature rises steadily to the predetermined hot pressing temperature. When the mold temperature reaches the predetermined hot pressing temperature and the raw material softens to a suitable degree, the hot pressing equipment is started to apply pressure to the upper mold, causing the upper mold to move downward and apply pressure to the raw material between the inner mold 6 and the outer mold 2. Under the action of pressure, the raw material flows and forms in the cavity. The pressure and temperature are maintained for a period of time to ensure that the T-tube is fully formed. The holding time is determined according to the characteristics of the raw material and the size and thickness of the T-tube. After the holding time is over, the heating system is turned off, and the mold can be demolded after cooling.

[0027] Both limiting sleeves 5 are equipped with retaining rings 10 inside. The inner mold 6 is lifted by a crane and slowly approached the outer mold 2. During the approach, the operator pulls the retaining rings 10 out of the limiting sleeves 5. The inner mold 6 gradually approaches the outer mold 2. By colliding with the retaining rings 10, the operator adjusts the direction of the inner mold 6 according to the collision feedback so that the inner mold 6 accurately enters the outer mold 2.

[0028] like Figure 3 and Figure 4As shown, the upper outer walls of the two limiting sleeves 5 are provided with upward-opening guide grooves 13 to limit the position of the retaining rings 10. The lowermost sides of the front and rear outer walls of the two retaining rings 10 are fixedly connected to limiting plates 14 to limit the maximum upward movement of the retaining rings 10. Multiple stop bars 15 are fixedly connected between the inner walls of the front and rear ends of the two retaining rings 10. Guide plates 12 are fixedly connected to the upper outer walls of the two retaining rings 10. The right circular outer walls of the two guide plates 12 are provided with through openings 11 for the hooks of external lifting equipment to be fixed.

[0029] Using a lifting device with a hook, pass the hook through the opening 11 on the guide plate 12, then start the lifting device and slowly lift the hook to pull the retaining ring 10 upward from the limiting sleeve 5. When the limiting plate 14 contacts the upper end face of the limiting sleeve 5, stop lifting. At this time, the retaining ring 10 reaches its highest movable position and is in a state ready to guide the installation of the inner mold 6. Use a crane to lift the inner mold 6 and gradually bring it closer to the outer mold 2. During the approach, the operator observes the relative position of the inner mold 6 and the retaining ring 10 and adjusts the direction of the inner mold 6. When the inner mold 6 collides with the retaining ring 10, adjust the movement path of the inner mold 6 in real time according to the collision feedback so that the inner mold 6 accurately enters the interior of the outer mold 2 along the direction guided by the retaining ring 10. After the inner mold 6 is installed, use the lifting device to slowly put the retaining ring 10 back into the limiting sleeve 5 through the hook, so that it returns to its initial low position.

[0030] like Figure 2 As shown, a fixing seat 9 is fixedly connected to the lower circular outer wall of the inner mold 6.

[0031] During the hot pressing process, the fixed seat 9 helps to evenly transfer the pressure borne by the inner mold 6 to the outer mold 2, preventing the inner mold 6 from shifting or deforming due to uneven pressure.

[0032] like Figure 1 As shown, positioning grooves 3 are provided on the outer walls of both the left and right ends of the outer mold 2 near the front side. Multiple fixing plates 4 are fixedly connected to the outer walls of both the left and right ends of the outer mold 2 near the front and rear sides respectively, so as to restrict the position of the outer mold 2 with bolts between it and the designated position in the workplace. A base 1 is fixedly connected to the lower outer wall of the outer mold 2 to support and distribute the pressure during hot pressing.

[0033] When the outer mold 2 is assembled with other equipment or components in the workplace, the positioning groove 3 can cooperate with the corresponding positioning pin or positioning block to accurately determine the position of the outer mold 2 and ensure the installation accuracy of the outer mold 2 in the workplace. Multiple fixing plates 4 are fixedly connected to the outer walls of the left and right ends of the outer mold 2 and close to the front and rear sides respectively. They are connected to the designated position in the workplace by bolts. This connection method can firmly fix the outer mold 2 in the working position and prevent the outer mold 2 from moving due to pressure, vibration and other factors during the hot pressing process. During the hot pressing process, the huge pressure is transmitted to the base 1 through the outer mold 2. The base 1 has a large bearing area and can evenly distribute the pressure to the ground or working platform to avoid damage to the working platform due to excessive local pressure.

[0034] like Figure 1 As shown, the upper outer wall of the inner mold 6 is fixedly connected with lifting rings 7 near the left and right sides, so that external lifting equipment can drive the inner mold 6 to start.

[0035] By connecting the lifting hook of the lifting equipment to the lifting ring 7, the inner mold 6 can be lifted conveniently and accurately, enabling the installation, disassembly, and transfer of the inner mold 6 between different workstations.

[0036] The implementation principle of this embodiment is as follows: A crane is used to lift the inner mold 6 and slowly approach the outer mold 2. The operator adjusts the direction of the inner mold 6 to ensure it accurately enters the outer mold 2, guaranteeing that the inner mold 6 is smoothly installed within the limiting range of the limiting sleeve 5. After installation, the relative positions of the inner mold 6 and the outer mold 2 are checked to ensure they meet the requirements. If there is a deviation, appropriate adjustments are made. Based on the material requirements of the tee pipe, appropriate thermoplastic granules or sheets are prepared. The processed raw materials are evenly placed in the cavity between the inner mold 6 and the outer mold 2. The heating system is started. During the heating process, the mold temperature is monitored in real time by an external temperature sensor, and the temperature signal is fed back to the external controller. The controller automatically adjusts the power of the heating system according to the preset temperature to ensure that the mold temperature rises stably to the predetermined hot-pressing temperature. When the mold temperature reaches the predetermined hot pressing temperature and the raw material softens to a suitable degree, the hot pressing equipment is started to apply pressure to the upper mold, causing the upper mold to move downwards and apply pressure to the raw material between the inner mold 6 and the outer mold 2. Under the action of pressure, the raw material flows and forms in the cavity. The pressure and temperature are maintained for a period of time to ensure that the T-shaped pipe is fully formed. The holding time is determined according to the characteristics of the raw material and the size and thickness of the T-shaped pipe. After the holding time is over, the heating system is turned off, and the mold can be demolded after cooling. The inner mold 6 is lifted by a crane and slowly moved closer to the outer mold 2. During the approach, the operator pulls the retaining ring 10 upwards from the limiting sleeve 5, and the inner mold 6 gradually approaches the outer mold 2. By colliding with the retaining ring 10, the operator adjusts the direction of the inner mold 6 according to the collision feedback so that the inner mold 6 accurately enters the interior of the outer mold 2.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A replaceable tee pipe spare hot pressing mold, comprising an outer mold (2) and an inner mold (6) installed inside the outer mold (2); The inner mold (6) has a through hole (8) inside the lower circular outer wall; Limit sleeves (5) are fixedly connected to the outer walls of both the left and right ends of the outer mold (2) to restrict the installation position of the inner mold (6); characterized in that Both of the limiting sleeves (5) are provided with retaining rings (10) inside.

2. The hot press die for manufacturing a replaceable tee according to claim 1, wherein: The upper outer walls of the two limiting sleeves (5) are provided with upward-opening guide grooves (13) to limit the position of the retaining rings (10). The lowermost sides of the front and rear outer walls of the two retaining rings (10) are fixedly connected with limiting plates (14) to limit the maximum upward movement of the retaining rings (10).

3. The hot press die for manufacturing a replaceable tee according to claim 1, wherein: Multiple stop bars (15) are fixedly connected between the inner walls of the front and rear ends of the two stop rings (10).

4. The hot press die for manufacturing a replaceable tee according to claim 1, wherein: The upper outer walls of the two retaining rings (10) are fixedly connected with guide plates (12), and the inner walls of the right circular outer walls of the two guide plates (12) are provided with through openings (11) for the hooks of external lifting equipment to be fixed.

5. The hot press die for manufacturing a replaceable tee according to claim 1, wherein: The lower circular outer wall of the inner mold (6) is fixedly connected to a fixing seat (9).

6. The hot press die for manufacturing a replaceable tee according to claim 1, wherein: The outer mold (2) has positioning grooves (3) on both the left and right sides near the front. Multiple fixing plates (4) are fixedly connected to the outer walls of the left and right sides near the front and rear sides respectively, so as to restrict the position of the outer mold (2) with bolts between it and the designated position of the workplace.

7. The hot press die for manufacturing a replaceable tee according to claim 1, wherein: The lower outer wall of the outer mold (2) is fixedly connected to a base (1) to support and distribute the pressure during hot pressing.

8. The hot press die for manufacturing a replaceable tee according to claim 1, wherein: The upper outer wall of the inner mold (6) is fixedly connected with lifting rings (7) near the left and right sides, so that external lifting equipment can drive the inner mold (6) to start.