Die for PE pipe production

Abstract

The utility model belongs to the technical field of PE pipes, and discloses a PE pipe production mold which comprises a first semicircular ring, a second semicircular ring is arranged on one side of the first semicircular ring, an inner ring is arranged in the first semicircular ring, an ejector block is arranged on the outer surface of the first semicircular ring, and a clamping ring groove is formed in the bottom of the first semicircular ring. A bottom ring is fixedly connected to the bottom of the first semicircular ring, a penetrating groove is formed in the upper end of the bottom of the first semicircular ring in a penetrating mode, a protruding block is fixedly connected to the inner wall of the penetrating groove, the space between the first semicircular ring and the inner ring is a mold cavity, a top groove is formed in the upper end of the inner ring, and a groove is formed in the outer side of the inner ring; according to the PE pipe forming device, a formed PE pipe can be taken out from the interior of the mold cavity, the telescopic rotating rod drives the inner ring to slide along the penetrating groove through the base plate, so that the groove is separated from the vertical block, the inner ring is separated from the ejection block, the ejection block drives the vertical block to move upwards along the groove, and the auxiliary ring drives the bottom of the formed PE pipe to move upwards along the mold cavity.

Description

Technical Field

[0001] This application relates to the field of PE pipe technology, and more specifically, to a mold for producing PE pipes. Background Technology

[0002] PE pipes are widely used in water supply pipes and gas pipes. The PE resin in PE pipes is polymerized from ethylene monomers. Due to different polymerization reaction conditions such as pressure and temperature during polymerization, resins of different densities can be obtained, hence the distinction between high-density polyethylene, medium-density polyethylene, and low-density polyethylene. In the production process, PE pipes need to be produced by injection molding molten PE resin through injection molds.

[0003] A PE pipe injection mold with publication number CN215320422U includes a mold worktable. An outer mold is fixedly installed on the top of the mold worktable. A support frame is fixedly installed on the top of the mold worktable and to the left of the outer mold. A motor is fixedly installed on the top of the support frame. A rotating shaft is fixedly installed on the output end of the motor through a coupling. An injection molding connection block is connected to the top of the outer mold. This PE pipe injection mold uses a motor to drive the rotating shaft and rotating fan blades to rotate. The rotating fan blades generate airflow, and a heat dissipation baffle conducts heat to the inner cavity of the inner mold. The rotating fan blades, in conjunction with the heat dissipation baffle, conduct airflow to cool the inner mold, achieving effective cooling during the PE pipe injection mold production process, improving the production efficiency of PE pipes, and further enhancing the practicality of the PE pipe injection mold.

[0004] However, the injection mold used in the production of PE pipes has a poor cooling effect during the production process, and the molded PE pipes are difficult to demold, requiring a lot of manpower and resources to assist in demolding.

[0005] To address the aforementioned issues, this application provides a mold for producing PE pipes. Utility Model Content

[0006] The technical solution for a PE pipe production mold provided in this application is as follows:

[0007] A mold for producing PE pipes includes a first semicircular ring, a second semicircular ring on one side of the first semicircular ring, an inner ring inside the first semicircular ring, a top block on the outer surface of the first semicircular ring, a retaining ring groove at the bottom of the first semicircular ring, a bottom ring fixedly connected to the bottom of the first semicircular ring, a through groove at the upper end of the bottom of the first semicircular ring, a protrusion fixedly connected to the inner wall of the through groove, a mold cavity between the first semicircular ring and the inner ring, a top groove at the upper end of the inner ring, a groove on the outer side of the inner ring, a base plate fixedly connected to the lower end of the inner ring, vertical blocks fixedly connected to both sides of the top block, and an auxiliary ring fixedly connected to the lower outer side of the vertical blocks.

[0008] Furthermore, a retaining ring is fixedly connected to the lower end of the second semi-circular ring, and the retaining ring is slidably engaged with the retaining ring groove.

[0009] Through the above technical solution, the second semicircular ring is used to cover the exposed part of the first semicircular ring, that is, to cover the mold cavity, and the retaining ring groove is used to limit the second semicircular ring to prevent the second semicircular ring from detaching from the first semicircular ring.

[0010] Furthermore, a telescopic rotating rod is fixedly connected to the lower end of the chassis, and a power device is externally connected to the lower end of the telescopic rotating rod.

[0011] Through the above technical solution, the chassis is used to cover and block the groove in the first semi-circular ring, the chassis is used to seal the lower end of the first semi-circular ring, and the telescopic rotating rod is used to drive the inner ring to slide inside the groove.

[0012] Furthermore, the inner ring extends through the interior of the groove, and the chassis is located below the first semi-circular ring.

[0013] Through the above technical solution, the inner ring is used to cover the inside of the groove to prevent the PE pipe from flowing into the groove.

[0014] Furthermore, the groove and the protrusion are slidably engaged, and the top groove and the top block are engaged correspondingly.

[0015] Through the above technical solution, the presence of grooves and protrusions is used to limit the grooves and protrusions, preventing the inner ring from rotating inside the groove, and the top groove is used to place the top block.

[0016] Furthermore, the groove is slidably engaged with the vertical block, and the auxiliary ring is located above the bottom ring.

[0017] Through the above technical solution, the vertical block is used to cover the groove so that the outer surface of the inner ring is in a smooth state, the auxiliary ring is used to slide in the mold cavity, and the auxiliary ring is used to drive the formed PE pipe to move upward along the mold cavity.

[0018] In summary, this application includes the following beneficial technical effects:

[0019] This application enables the molded PE pipe to be removed from the mold cavity. The inner ring is slid along the groove via the telescopic rotating rod through the chassis to separate the groove from the vertical block, that is, to separate the inner ring from the top block. The top block drives the vertical block to move upward along the groove, causing the auxiliary ring to drive the bottom of the molded PE pipe to move upward along the mold cavity. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this application;

[0021] Figure 2 This is a schematic diagram of the first semicircular ring and inner ring structure of this application;

[0022] Figure 3 This is a schematic diagram of the first semi-circular ring structure of this application;

[0023] Figure 4 This is a schematic diagram of the inner ring structure of this application;

[0024] Figure 5 This is a schematic diagram of the top block structure of this application.

[0025] Explanation of the labels in the diagram:

[0026] 1. First semicircular ring; 11. Snap ring groove; 12. Bottom ring; 13. Through groove; 131. Protrusion; 14. Mold cavity; 2. Second semicircular ring; 21. Snap ring component; 3. Inner ring; 31. Top groove; 32. Groove; 33. Base plate; 331. Telescopic rotating rod; 4. Top block; 41. Vertical block; 42. Auxiliary ring. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] Example:

[0031] This application discloses a mold for producing PE pipes. Please refer to [link / reference]. Figures 1-5 The system includes a first semicircular ring 1, a second semicircular ring 2 on one side of the first semicircular ring 1, an inner ring 3 inside the first semicircular ring 1, a top block 4 on the outer surface of the first semicircular ring 1, a retaining ring groove 11 at the bottom of the first semicircular ring 1, a bottom ring 12 fixedly connected to the bottom of the first semicircular ring 1, a through groove 13 through the upper end of the bottom of the first semicircular ring 1, a protrusion 131 fixedly connected to the inner wall of the through groove 13, a mold cavity 14 between the first semicircular ring 1 and the inner ring 3, a top groove 31 at the upper end of the inner ring 3, a groove 32 at the outer side of the inner ring 3, a base plate 33 fixedly connected to the lower end of the inner ring 3, vertical blocks 41 fixedly connected to both sides of the top block 4, and an auxiliary ring 42 fixedly connected to the lower outer side of the vertical block 41.

[0032] The lower end of the second semi-circular ring 2 is fixedly connected to a retaining ring 21, which is slidably engaged with the retaining ring groove 11.

[0033] The second semicircular ring 2 is used to cover the exposed part of the first semicircular ring 1, that is, to cover the mold cavity 14. The retaining ring groove 11 is used to limit the second semicircular ring 2 and prevent the second semicircular ring 2 from detaching from the first semicircular ring 1.

[0034] A telescopic rotating rod 331 is fixedly connected to the lower end of the chassis 33, and the lower end of the telescopic rotating rod 331 is connected to an external power device.

[0035] The chassis 33 is used to cover and block the groove 13 in the first semi-circular ring 1, and the chassis 33 is used to seal the lower end of the first semi-circular ring 1. The telescopic rotating rod 331 is used to drive the inner ring 3 to slide inside the groove 13.

[0036] The inner ring 3 passes through the interior of the slot 13, and the chassis 33 is located below the first semi-circular ring 1.

[0037] The inner ring 3 is used to cover the inside of the through groove 13 to prevent the PE pipe from flowing into the through groove 13.

[0038] The groove 32 and the protrusion 131 are slidably engaged and connected, and the top groove 31 is engaged and corresponding with the top block 4.

[0039] The groove 32 and the protrusion 131 are used to limit the groove 32 and the protrusion 131 to prevent the inner ring 3 from rotating inside the through groove 13. The top groove 31 is used to place the top block 4.

[0040] The groove 32 is slidably engaged with the vertical block 41, and the auxiliary ring 42 is located above the bottom ring 12.

[0041] The vertical block 41 is used to cover the groove 32 so that the outer surface of the inner ring 3 is in a smooth state. The auxiliary ring 42 is used to slide in the mold cavity 14 and to drive the formed PE pipe to move upward along the mold cavity 14.

[0042] The implementation principle of this embodiment is as follows: When it is necessary to produce PE pipe, the raw material is first poured into the mold cavity 14. After the PE pipe is formed, the telescopic rotating rod 331 can be extended and retracted by the power equipment. The inner ring 3 is driven to slide along the groove 13 through the chassis 33. With the auxiliary ring 42 fixed at the upper end of the bottom ring 12, the groove 32 in the inner ring 3 slides along the vertical block 41. Then, the top block 4 is pulled to move the vertical block 41 upward along the groove 32. At this time, the auxiliary ring 42 will drive the bottom of the formed PE pipe to move upward along the mold cavity 14. At this time, under the combined action of the inner ring 3 moving downward and the inner ring 3 moving upward, the PE pipe can be taken out from the inside of the mold cavity 14.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A mold for producing PE pipes, comprising a first semicircular ring (1), characterized in that: A second semicircular ring (2) is provided on one side of the first semicircular ring (1). An inner ring (3) is provided inside the first semicircular ring (1). A top block (4) is provided on the outer surface of the first semicircular ring (1). A retaining ring groove (11) is provided at the bottom of the first semicircular ring (1). A bottom ring (12) is fixedly connected to the bottom of the first semicircular ring (1). A through groove (13) is provided at the upper end of the bottom of the first semicircular ring (1). The through groove (13) has... A protrusion (131) is fixedly connected to the inner wall. The space between the first semicircular ring (1) and the inner ring (3) is a mold cavity (14). A top groove (31) is opened at the upper end of the inner ring (3). A groove (32) is opened on the outer side of the inner ring (3). A base plate (33) is fixedly connected to the lower end of the inner ring (3). Vertical blocks (41) are fixedly connected to both sides of the top block (4). An auxiliary ring (42) is fixedly connected to the outer side of the lower end of the vertical block (41).

2. The mold for producing PE pipes according to claim 1, characterized in that: The lower end of the second semi-circular ring (2) is fixedly connected to a retaining ring (21), and the retaining ring (21) is slidably engaged with the retaining ring groove (11).

3. The mold for producing PE pipes according to claim 1, characterized in that: The lower end of the chassis (33) is fixedly connected to a telescopic rotating rod (331), and the lower end of the telescopic rotating rod (331) is externally connected to a power device.

4. The mold for producing PE pipes according to claim 1, characterized in that: The inner ring (3) passes through the interior of the groove (13), and the chassis (33) is located below the first semicircular ring (1).

5. A mold for producing PE pipes according to claim 1, characterized in that: The groove (32) is slidably engaged with the protrusion (131), and the top groove (31) is engaged with the top block (4).

6. The mold for producing PE pipes according to claim 1, characterized in that: The groove (32) is slidably engaged with the vertical block (41), and the auxiliary ring (42) is located above the bottom ring (12).

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