Polyethylene pipe forming mold
By designing an adjustable polyethylene pipe forming mold, the problem of frequent mold replacement was solved, enabling efficient production and uniform cooling of pipes of different sizes, thus improving production efficiency and quality.
Patent Information
- Application Number
- CN202520147106.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Existing polyethylene pipe forming molds require frequent mold changes when producing pipes of different sizes, causing inconvenience to workers and reducing production efficiency and flexibility.
The system employs an adjustable polyethylene pipe forming mold, with a bolted front and rear module design, and replaceable orifice and core molds. Combined with a cooling mechanism, it enables the production of pipes of different sizes, and provides uniform cooling through an annular water tank and spray pipes.
It reduces the frequency of mold changes, improves production efficiency and mold usage flexibility, and enhances pipe cooling uniformity and production quality.
Smart Images
Figure CN223701634U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to pipe material processing mould technical field, concretely is polyethylene pipe forming die. BACKGROUND
[0002] The polyethylene pipe is currently in the municipal pipe material market of China, and the plastic pipeline is developing steadily, and the polyethylene pipe, PP-R pipe and UPVC pipe all have a place, among which the strong development momentum of the polyethylene pipe is the most remarkable.
[0003] At present, when polyethylene pipe is made, polyethylene material is generally heated and melted, then injected into a pipe forming die, and then cooled to form a polyethylene pipe, but the size of the existing forming die is generally fixed, so when producing polyethylene pipes of different sizes, the forming die needs to be replaced, and the original die is disassembled and replaced with a new one, thereby increasing the trouble of the workers and reducing the production efficiency of the forming die and the use flexibility of the forming die. UTILITY MODEL CONTENT
[0004] In view of the deficiencies of the prior art, the utility model provides a polyethylene pipe forming die, which solves the problem that the traditional forming die cannot produce pipes of different sizes, thereby avoiding the overall disassembly and replacement of the forming die by the workers when producing pipes of different sizes, reducing the trouble of the workers, and improving the production efficiency of the forming die and the use flexibility of the forming die.
[0005] To achieve the above purpose, the utility model realizes the following technical scheme: a polyethylene pipe forming die, comprising a rear module and a front module, the front module is located on the front side of the rear module, and the front module and the rear module are connected together through bolts, a cavity is formed in the inside of the rear module and the front module, an installation opening is formed on the front side surface of the front module, an inner wall of the installation opening is provided with a discharge opening, an inner side wall of the installation opening is provided with an internal thread connection part, one side of the front module is provided with a mouth die, an outer side surface of the mouth die is provided with an external thread connection part, the mouth die is installed in the inside of the installation opening through the external thread connection and the internal thread connection part, the inside of the discharge opening is provided with a core die, one end of the core die is fixedly connected with a screw rod, an installation hole is formed in the inner wall of the cavity, and the core die is connected with the installation hole through the screw rod, a cooling mechanism is arranged on the front side of the front module, and injection openings are symmetrically arranged on the upper surfaces of the rear module and the front module.
[0006] Preferably, one end of the mouth die is fixedly connected with a sealing ring, one end of the sealing ring is fixedly connected with a sealing gasket, a sealing groove is formed in the inner wall of the installation opening, and the sealing groove and the sealing gasket correspond to each other.
[0007] Preferably, an expanding opening is formed in the inner side wall of one end of the mouth die, and the outer edge of the expanding opening is aligned with one side of the discharge opening.
[0008] Preferably, the cooling mechanism comprises a ring-shaped water tank, one side surface of the ring-shaped water tank is rotationally connected with a ring-shaped rotary joint, one side surface of the ring-shaped rotary joint is provided with a water inlet pipe, the inner side surface of the ring-shaped water tank is fixedly connected with a plurality of groups of spray pipes, and the outer side surface of the ring-shaped water tank is connected with a driving mechanism through a gear.
[0009] Preferably, the driving mechanism comprises a gear, the gear is engaged with the gear teeth, one side surface of the gear is fixedly connected with a motor, one end of the motor is fixedly connected with a limiting rod, and one end of the limiting rod is fixedly connected with the upper surface of the front module.
[0010] Preferably, the other side surface of the ring-shaped water tank is fixedly connected with a supporting ring, one side surface of the supporting ring is fixedly connected with a supporting rod, and one end of the supporting rod is fixedly connected with the front side surface of the front module.
[0011] The polyethylene pipe forming die has the following beneficial effects compared with the prior art:
[0012] 1. The mounting hole formed in the front side surface of the front module, the die core and the screw fixedly connected with one end of the die core, and the mounting hole formed in the inner wall of the cavity are matched with each other, so that the workers do not need to disassemble and replace the forming die as a whole when producing pipes of different sizes, the workers' troubles are reduced, and the production efficiency of the forming die and the use flexibility of the forming die are improved.
[0013] 2. The ring-shaped water tank in the cooling mechanism, the spray pipes fixedly connected with the inner side surface of the ring-shaped water tank, and the driving mechanism connected with the outer side surface of the ring-shaped water tank through the gear are matched with each other, so that the pipe surface can be fully sprayed when the polyethylene pipe is cooled, the cooling uniformity of the pipe is improved, and the production quality of the pipe is improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a structural schematic view of the utility model;
[0015] Figure 2 It is a sectional structural schematic view of the rear module and the front module in the utility model;
[0016] Figure 3 It is a structural schematic view of the die core in the utility model;
[0017] Figure 4 It is a structural schematic view of the cooling mechanism in the utility model.
[0018] In the figure: 1, rear module; 101, injection port; 102, front module; 1021, mounting port; 1022, sealing groove; 1023, discharge port; 103, core mold; 1031, screw rod; 104, cavity; 105, mounting hole; 2, limiting rod; 201, motor; 202, gear; 3, annular rotary joint; 301, spraying pipe; 302, water inlet pipe; 303, tooth; 304, support ring; 305, annular water tank; 306, support rod; 4, die; 401, flared; 402, sealing ring; 403, sealing pad. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0020] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: polyethylene pipe forming die, including rear module 1 and front module 102, front module 102 is located at the front side of rear module 1, and front module 102 and rear module 1 are connected together by bolt, and the inside of rear module 1 and front module 102 is provided with cavity 104, the front side surface of front module 102 is provided with mounting port 1021, the inner wall of mounting port 1021 is provided with discharge port 1023, the inner side wall of mounting port 1021 is equipped with internal thread connection part, one side of front module 102 is equipped with die 4, the outer side surface of die 4 is equipped with external thread connection part, and die 4 is installed in the inside of mounting port 1021 by external thread connection and internal thread connection part, the inside of discharge port 1023 is equipped with core mold 103, one end of core mold 103 is fixedly connected with screw rod 1031, the inner wall of cavity 104 is provided with mounting hole 105, and core mold 103 is connected with mounting hole 105 by screw rod 1031, the front side of front module 102 is equipped with cooling mechanism, and the upper surface of rear module 1 and front module 102 is symmetrically equipped with injection port 101.
[0021] As a kind of technical optimization scheme of the utility model, one end of die 4 is fixedly connected with sealing ring 402, one end of sealing ring 402 is fixedly connected with sealing pad 403, the inner wall of mounting port 1021 is provided with sealing groove 1022, sealing groove 1022 and sealing pad 403 correspond to each other, sealing pad 403 fixedly connected by one end of sealing ring 402 and sealing groove 1022 provided on the inner wall of mounting port 1021 are mutually matched, so that forming die can be further sealed, prevent the difficulty of increasing die 4 replacement caused by the polyethylene flowing into between die 4 and mounting port 1021.
[0022] As a technical optimization scheme of the utility model, the one end inner side wall of the die head 4 is provided with an expanding hole 401, the outer edge of the expanding hole 401 is aligned with one side of the discharge port 1023, which can facilitate the melted polyethylene in the cavity 104 to flow smoothly into the die head 4, and reduce the flow resistance of the melted polyethylene.
[0023] As a technical optimization scheme of the utility model, the cooling mechanism comprises an annular water tank 305, the one side surface of the annular water tank 305 is rotatably connected with an annular rotary joint 3, the one side surface of the annular rotary joint 3 is provided with a water inlet pipe, the inner side surface of the annular water tank 305 is fixedly connected with a plurality of spray pipes 301, and the outer side surface of the annular water tank 305 is connected with a driving mechanism through a gear 303. The annular water tank 305 and the spray pipe 301 can cool the extruded polyethylene pipe, thereby preventing the polyethylene pipe from deforming.
[0024] As a technical optimization scheme of the utility model, the driving mechanism comprises a gear 202, the gear 202 is engaged with the gear teeth 303, the one side surface of the gear 202 is fixedly connected with a motor 201, one end of the motor 201 is fixedly connected with a limiting rod 2, and the one end of the limiting rod 2 is fixedly connected with the upper surface of the front module 102. The motor 201 and the gear 202 in the driving mechanism can drive the annular water tank 305 to rotate, so that the spray pipe 301 can rotate and cool the polyethylene pipe, thereby improving the cooling uniformity of the pipe and the production quality of the pipe.
[0025] As a technical optimization scheme of the utility model, the other side surface of the annular water tank 305 is fixedly connected with a supporting ring 304, the one side surface of the supporting ring 304 is fixedly connected with a supporting rod 306, and the one end of the supporting rod 306 is fixedly connected with the front side surface of the front module 102.
[0026] The utility model discloses a use, first the core mould 103 is connected with the mounting hole 105 through screw rod 1031, then the mouth mould 4 is connected with the mounting hole 1021 with threaded connection part, the sealing washer 403 of mouth mould 4 one end will be embedded inside sealing groove 1022 at this moment, after injection inlet 101 is injected into the inside of cavity 104 with the injection of melting polyethylene, the melting polyethylene will enter the inside of mouth mould 4 through discharge port 1023 at this moment, the polyethylene pipe is formed under the effect of mouth mould 4 and core mould 103 at this moment, then the polyethylene pipe is discharged from the other end of mouth mould 4, and water is injected into the inside of annular water tank 305 through water inlet pipe 302 at the same time, then annular water tank 305 is sprayed to polyethylene pipeline through spraying pipe 301 and carries out cooling to the pipeline, and at the same time, the motor 201 in drive mechanism is started, therefore the motor 201 will rotate annular water tank 305 through gear 202 and tooth 303, thereby can make spraying pipe 301 spray cooling water to the pipeline evenly, and improve the production quality of polyethylene pipe, when needing to produce polyethylene pipe of different sizes, the staff only needs to replace corresponding size of mouth mould 4 and core mould 103 at this moment, thereby reducing the trouble of staff.
[0027] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by the person skilled in the art.
[0028] It should be noted that, in this document, the terms such as first and second are used merely to distinguish one entity or action from another, and do not necessarily require or imply any such actual relationship or order between such entities or actions. Moreover, the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations. By the sentence "including a limited element, it does not exclude the existence of another same element in the process, method, article or device including the element".
[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A polyethylene pipe forming die comprising a back module (1) and a front module (102), characterized in that: The front module (102) is located on the front side of the rear module (1), and the front module (102) and the rear module (1) are connected together by bolts, the inside of the rear module (1) and the front module (102) is provided with a cavity (104), the front side surface of the front module (102) is provided with a mounting port (1021), and the inner wall of the mounting port (1021) is provided with a discharge port (1023), the inner side wall of the mounting port (1021) is provided with an internal thread connection part, one side of the front module (102) is provided with a mouth die (4), and the outer side surface of the mouth die (4) is provided with an external thread connection part, and the mouth die (4) is mounted in the inside of the mounting port (1021) through external thread connection and internal thread connection part, the inside of the discharge port (1023) is provided with a core die (103), and one end of the core die (103) is fixedly connected with a screw rod (1031), the inner wall of the cavity (104) is provided with a mounting hole (105), and the core die (103) is connected with the mounting hole (105) through the screw rod (1031), and the front side of the front module (102) is provided with a cooling mechanism, and the upper surfaces of the rear module (1) and the front module (102) are symmetrically provided with an injection port (101).
2. The polyethylene pipe forming mold according to claim 1, characterized by: One end of the mouth die (4) is fixedly connected with a sealing ring (402), and one end of the sealing ring (402) is fixedly connected with a sealing gasket (403), the inner wall of the mounting port (1021) is provided with a sealing groove (1022), and the sealing groove (1022) and the sealing gasket (403) correspond to each other.
3. The polyethylene pipe forming mold according to claim 1, characterized by: The inner side wall of one end of the mouth die (4) is provided with a flared portion (401), and the outer edge of the flared portion (401) is aligned with one side of the discharge port (1023).
4. The polyethylene pipe forming mold of claim 1, wherein: The cooling mechanism comprises an annular water tank (305), and the side surface of the annular water tank (305) is rotatably connected with an annular rotary joint (3), the side surface of the annular rotary joint (3) is provided with a water inlet pipe, the inner side surface of the annular water tank (305) is fixedly connected with a plurality of groups of spray pipes (301), and the outer side surface of the annular water tank (305) is connected with a driving mechanism through a gear (303).
5. The polyethylene pipe forming mold of claim 4, wherein: The driving mechanism comprises a gear (202), and the gear (202) is engaged with the gear (303), the side surface of the gear (202) is fixedly connected with a motor (201), and one end of the motor (201) is fixedly connected with a limiting rod (2), and one end of the limiting rod (2) is fixedly connected with the upper surface of the front module (102).
6. The polyethylene pipe forming mold of claim 1, wherein: The other side surface of the annular water tank (305) is fixedly connected with a support ring (304), and the side surface of the support ring (304) is fixedly connected with a support rod (306), and one end of the support rod (306) is fixedly connected with the front side surface of the front module (102).