Plastic mold with good exhaust effect

Abstract

The utility model relates to the technical field of plastic molds, in particular to a plastic mold with a good exhaust effect, which comprises a base, a lower mold seat is mounted at the top end of the base, an upper mold seat is mounted at the top end of the lower mold seat, and the top end of the upper mold seat is connected with an exhaust pipe communicated with the interior of the lower mold seat. An exhaust mechanism is arranged between the two sides of the lower die holder; and the exhaust mechanism comprises an exhaust hole and an inserting rod. The plastic mold has the beneficial effects that the electric push rod drives the movable plate to move along the guide rod, so that the inner end of the insertion rod is pulled out of the exhaust hole, the spring is compressed, the exhaust pipe is kept open and exhausts air outwards, and effective emission of air in the plastic mold is improved by matching with the exhaust pipe; plastic sundries adhered to the inner surface of the exhaust hole are scraped and cleaned through a scraping ring, the exhaust hole is kept unblocked, the exhaust hole is opened and closed by manually pulling a moving plate and driving an inserting rod to move, and application is flexible and convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic mould, especially to a plastic mould with good exhaust effect. BACKGROUND

[0002] The plastic mould is an important tool in the production process of plastic products, which forms the products with the required shape and size through pressure molding, extrusion molding, injection molding, blow molding and low-foam molding process of plastic raw materials. The plastic mould plays an important role in the plastic industry and is widely used in daily life, industrial production, automobiles, electronics and other fields. During the product injection molding process, a certain amount of gas will be generated due to the friction, heating of the mould and equipment and melting of the plastic. In order to solve the problem of gas generated during the injection molding process of the plastic mould, an exhaust groove or exhaust hole is provided on the parting surface of the mould to exhaust the air in the mould cavity and the gas generated by the plastic.

[0003] For example, the prior art Chinese patent publication "CN222271101U" provides a plastic mould with good exhaust effect, which comprises a mould body and a support. A frame is installed on the support, a rod type elastic member is installed in the frame, the mould body is sleeved on the rod type elastic member, a driving member is installed on the support for driving the mould body to move back and forth along the rod type elastic member, an exhaust groove is formed in the mould body, and an air outlet member is connected to the exhaust groove. The inner wall of the frame is provided with an air bag member located on the moving path of the mould body, and the air bag member is in communication with the air outlet member.

[0004] The device is provided with an air outlet member and an air bag member. When the exhaust groove in the mould body exhausts, the gas can be discharged through the air outlet member. When the mould body moves back and forth, the air bag member can be repeatedly squeezed to guide the gas into the air outlet member, thereby accelerating the exhaust speed of the exhaust groove.

[0005] The existing plastic mould has the following problems. When in use, air will exist between the injection plastic and the lower mould base after the injection plastic enters the lower mould base and the upper mould base is closed. The air cannot be quickly and effectively discharged to the outside of the mould. In addition, some injection plastic waste will adhere to the surface of the exhaust hole, which will block and reduce the air flow of the exhaust hole and cannot be scraped and cleaned.

[0006] Therefore, a plastic mould with good exhaust effect is proposed. UTILITY MODEL CONTENTS

[0007] The utility model aims at solving the problem that some injection plastic waste adheres to the surface of the exhaust hole, which blocks and reduces the air flow of the exhaust hole and cannot be scraped and cleaned in the prior art, and proposes a plastic mould with good exhaust effect.

[0008] To achieve the above object, the utility model provides the following technical scheme:

[0009] The utility model discloses a plastic mould with good exhaust effect, including base, the top of base is installed with lower mould seat, the top of lower mould seat is installed with upper mould seat, the top of upper mould seat is connected with the exhaust pipe of lower mould seat intercommunication, the both sides middle of lower mould seat is provided with exhaust mechanism, exhaust mechanism includes exhaust hole and inserts the pole, exhaust hole is established in the middle of the side of lower mould seat, and its outside is fixed with support frame, the outside of support frame is opened with guide hole, inserts the pole sliding through guide hole and exhaust hole, and the surface of one end of inserts the pole is fixed with high temperature resistance sealing washer and scraping ring.

[0010] Further, the high temperature resistance sealing washer is tightly installed in the inside of the exhaust hole, the side surface thereof is flush with the inside of the lower mould seat, and the scraping ring is slidingly installed in the inside of the exhaust hole and close to the high temperature resistance sealing washer.

[0011] Further, the surface of the insert rod and the position outside the exhaust hole are sleeved with a first abutting ring, the surface of the insert rod and the position inside the guide hole are sleeved with a second abutting ring, and the first abutting ring and the second abutting ring are connected by springs around the insert rod.

[0012] Further, the surface of the insert rod and the position between the second abutting ring and the guide hole are sleeved with an elastic sleeve, the surface of the insert rod and the position outside the guide hole are fixed with a limiting ring, the surface of the insert rod and the position outside the limiting ring are provided with an external thread surface structure and connected with a nut.

[0013] Further, the outside of the support frame is installed with a moving plate, one end surface of the moving plate is provided with a mounting hole, the insert rod slides through the mounting hole, and the nut and the limiting ring are respectively arranged on the two sides of the mounting hole.

[0014] Further, the other end of the moving plate is installed with an electric push rod, the electric push rod is fixedly installed on one side of the support frame and horizontally arranged.

[0015] Further, the middle of the moving plate is provided with a sliding hole, the outside of the support frame and the position between the insert rod and the electric push rod are fixed with a guide rod, and the guide rod slides through the sliding hole.

[0016] Further, the exhaust pipe is vertically arranged, the support frame is C-shaped structure and horizontally arranged, the insert rod is horizontally arranged and elastically installed between the outside of the support frame and the lower mould seat.

[0017] The plastic mold with good venting effect proposed in this utility model has the following advantages:

[0018] 1. This utility model provides an exhaust pipe at the top of the upper mold base and exhaust holes on both sides of the lower mold base. A connecting rod is slidably and elastically mounted via a support frame and connected to the connecting rod via an electric push rod and a moving plate. Thus, after the plastic enters the lower mold base and the upper mold base closes for injection molding, the electric push rod drives the moving plate along the guide rod, pulling the inner end of the connecting rod out of the exhaust hole and compressing the spring. This keeps the exhaust pipe open and allows for external exhaust, effectively improving the discharge of air from inside the plastic mold.

[0019] 2. This utility model features a high-temperature resistant sealing gasket and a scraping ring on the surface of the connector rod, located inside the vent hole. After the air inside the plastic mold is vented, the connector rod is pulled back by an electric push rod and a moving plate, causing the high-temperature resistant sealing gasket to seal the inner end of the vent hole, reducing heat loss and plastic leakage from the plastic mold. Simultaneously, the scraping ring scrapes and cleans the inner surface of the vent hole to remove adhering plastic debris, keeping the vent hole unobstructed. Furthermore, when the electric push rod is de-energized, the connector rod can be moved manually by pulling the moving plate to open and close the vent hole. The spring compression resets the connector rod, making it flexible and convenient to use. Attached Figure Description

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

[0021] Figure 2 This utility model Figure 1 A schematic diagram of the exhaust port and support frame;

[0022] Figure 3 This utility model Figure 1 A schematic diagram of the connector rod and spring section;

[0023] Figure 4 This utility model Figure 1 A schematic diagram of the movable plate and electric push rod.

[0024] In the diagram: 1. Base; 2. Lower mold base; 3. Upper mold base; 4. Exhaust pipe; 5. Electric push rod; 6. Moving plate; 7. Guide rod; 8. Insert rod; 9. Support frame; 10. Exhaust hole; 11. Guide hole; 12. Nut; 13. Limiting ring; 14. Elastic sleeve; 15. Second abutment ring; 16. Spring; 17. First abutment ring; 18. Scraping ring; 19. High-temperature resistant sealing gasket; 20. Mounting hole; 21. Sliding hole. Detailed Implementation

[0025] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments of the present application.

[0026] Embodiment 1

[0027] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , a plastic mold with good exhaust effect in the drawing, including base 1, the top of base 1 is installed with lower die seat 2, the top of lower die seat 2 is installed with upper die seat 3, the top of upper die seat 3 is connected with exhaust pipe 4 which is communicated with the inside of lower die seat 2, the middle of both sides of lower die seat 2 is provided with exhaust mechanism.

[0028] Exhaust mechanism includes exhaust hole 10 and plug-in rod 8, exhaust hole 10 is opened in the middle of the side of lower die seat 2, the outside of which is fixed with support frame 9, the outside of support frame 9 is opened with guide hole 11, plug-in rod 8 slides through guide hole 11 and exhaust hole 10, one end surface of plug-in rod 8 is fixed with high-temperature-resistant sealing pad 19 and scraping ring 18.

[0029] By setting exhaust pipe 4 at the top of upper die seat 3, setting exhaust hole 10 at both sides of lower die seat 2, and slidingly and elastically installing plug-in rod 8 through support frame 9, and connecting between electric push rod 5, moving plate 6 and plug-in rod 8, in this way, after the injection of plastic into lower die seat 2, after the closing of upper die seat 3 during the injection process, electric push rod 5 drives moving plate 6 to move along guide rod 7, so as to pull the inner end of plug-in rod 8 out of exhaust hole 10 and compress spring 16, thereby keeping exhaust hole 10 open and exhausting outward, cooperating with exhaust pipe 4, improving the effective discharge of air inside the plastic mold.

[0030] Embodiment 2

[0031] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , a plastic mold with good exhaust effect in the drawing, including base 1, the top of base 1 is installed with lower die seat 2, the top of lower die seat 2 is installed with upper die seat 3, the top of upper die seat 3 is connected with exhaust pipe 4 which is communicated with the inside of lower die seat 2, the middle of both sides of lower die seat 2 is provided with exhaust mechanism.

[0032] High-temperature-resistant sealing pad 19 is tightly installed in the inside of exhaust hole 10, the side surface of which is flush with the inside of lower die seat 2, scraping ring 18 is slidingly and scrapingly installed in the inside of exhaust hole 10, close to high-temperature-resistant sealing pad 19.

[0033] The surface of the insertion rod 8 and the position outside the exhaust hole 10 are sleeved with the first abutting ring 17, the surface of the insertion rod 8 and the position inside the guide hole 11 are sleeved with the second abutting ring 15, the position between the first abutting ring 17 and the second abutting ring 15 and around the insertion rod 8 is circumferentially distributed and connected with the spring 16.

[0034] The surface of the insertion rod 8 and the position between the second abutting ring 15 and the guide hole 11 are sleeved with the elastic sleeve 14, the elastic sleeve 14 can adopt a rubber ring, which is used to scrape and clean the plastic impurities adhered to the surface of the insertion rod 8, the surface of the insertion rod 8 and the position outside the guide hole 11 are fixed with the limiting ring 13, the surface of the insertion rod 8 and the position outside the limiting ring 13 are externally threaded and connected with the nut 12.

[0035] The outer side of the support frame 9 is mounted with the moving plate 6, one end surface of the moving plate 6 is provided with the mounting hole 20, the insertion rod 8 slides through the mounting hole 20, and the nut 12 and the limiting ring 13 are respectively arranged on the two sides of the mounting hole 20.

[0036] The other end of the moving plate 6 is mounted with the electric push rod 5, the electric push rod 5 is fixedly installed on one side of the support frame 9 and is horizontally arranged.

[0037] The middle of the moving plate 6 is provided with the sliding hole 21, the outer side of the support frame 9 and the position between the insertion rod 8 and the electric push rod 5 is fixed with the guide rod 7, and the guide rod 7 slides through the sliding hole 21.

[0038] The high-temperature-resistant sealing gasket 19 and the scraping ring 18 are arranged on the surface of the insertion rod 8 and inside the exhaust hole 10, after the air in the plastic mold is discharged, the insertion rod 8 is pulled back by the electric push rod 5 and the moving plate 6, so that the high-temperature-resistant sealing gasket 19 seals and blocks the inner end of the exhaust hole 10, reduces the heat loss in the plastic mold and the plastic outflow, at the same time, the inner surface of the exhaust hole 10 is scraped and cleaned by the scraping ring 18 to adhere to the plastic impurities, and the exhaust hole is kept unobstructed.

[0039] The exhaust pipe 4 is vertically arranged, the support frame 9 is horizontally arranged in a C-shaped structure, and the insertion rod 8 is horizontally arranged and elastically mounted between the outer side of the support frame 9 and the lower mold base 2.

[0040] Working mode: the exhaust pipe 4 is arranged at the top end of the upper mold base 3, the exhaust holes 10 are arranged on the two sides of the lower mold base 2, the insertion rod 8 is elastically mounted by the support frame 9, and the electric push rod 5 and the moving plate 6 are connected with the insertion rod 8, so that after the plastic is injected into the lower mold base 2, the upper mold base 3 is closed for injection molding, the electric push rod 5 drives the moving plate 6 to move along the guide rod 7, so that the inner end of the insertion rod 8 is pulled out of the exhaust hole 10 and the spring 16 is compressed, thereby keeping the exhaust hole 10 open and discharging air outward, cooperating with the exhaust pipe 4, improving the effective discharge of air in the plastic mold.

[0041] The high-temperature-resistant sealing pad 19 and the scraping ring 18 are arranged on the surface of the plug rod 8 and inside the air exhaust hole 10, and after the air inside the plastic mold is exhausted, the plug rod 8 is pulled back by the electric push rod 5 and the moving plate 6, so that the high-temperature-resistant sealing pad 19 seals and blocks the inner end of the air exhaust hole 10, reduces the heat loss inside the plastic mold and the plastic outflow, at the same time, the inner surface of the air exhaust hole 10 is scraped and cleaned by the scraping ring 18, and the plastic sundries adhered to the inner surface of the air exhaust hole 10 are removed, so that the air exhaust hole is kept unobstructed.

[0042] Moreover, when the electric push rod 5 is powered off, the moving plate 6 is manually pulled to drive the plug rod 8 to open and close the air exhaust hole 10, and the plug rod 8 after being pulled is reset by the elastic recovery of the compressed spring 16, and the application is flexible and convenient.

[0043] The above is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the application concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A plastic mold with good exhaust effect, comprising a base (1), characterized in that: The top end of the base (1) is provided with a lower die seat (2), the top end of the lower die seat (2) is provided with an upper die seat (3), the top end of the upper die seat (3) is connected with an exhaust pipe (4) which is communicated with the inside of the lower die seat (2), and the middle of the two sides of the lower die seat (2) is provided with an exhaust mechanism. The exhaust mechanism comprises an exhaust hole (10) and a plug-in rod (8), the exhaust hole (10) is arranged in the middle of the side of the lower die seat (2), the outer side of the exhaust hole (10) is fixedly provided with a support frame (9), the outer side of the support frame (9) is provided with a guide hole (11), the plug-in rod (8) slides through the guide hole (11) and the exhaust hole (10), and one end surface of the plug-in rod (8) is fixedly provided with a high-temperature-resistant sealing gasket (19) and a scraping ring (18).

2. The plastic mold with good exhaust effect according to claim 1, characterized in that: The high-temperature-resistant sealing gasket (19) is tightly arranged in the inside of the exhaust hole (10), the side surface of the high-temperature-resistant sealing gasket (19) is flush with the inner side of the lower die seat (2), and the scraping ring (18) is slidingly arranged in the inside of the exhaust hole (10) and close to the high-temperature-resistant sealing gasket (19).

3. The plastic mold with good exhaust effect according to claim 1, characterized in that: A first abutting ring (17) is sleeved on the surface of the plug-in rod (8) and located outside the exhaust hole (10), a second abutting ring (15) is sleeved on the surface of the plug-in rod (8) and located inside the guide hole (11), and springs (16) are circumferentially arranged between the first abutting ring (17) and the second abutting ring (15) and around the plug-in rod (8).

4. The plastic mold with good exhaust effect according to claim 3, characterized in that: An elastic sleeve (14) is sleeved on the surface of the plug-in rod (8) and located between the second abutting ring (15) and the guide hole (11), the surface of the plug-in rod (8) and located outside the guide hole (11) is fixedly provided with a limiting ring (13), the surface of the plug-in rod (8) and located outside the limiting ring (13) is provided with an external thread surface structure and connected with a nut (12).

5. The plastic mold with good exhaust effect according to claim 4, characterized in that: The outer side of the support frame (9) is provided with a moving plate (6), one end surface of the moving plate (6) is provided with a mounting hole (20), the plug-in rod (8) slides through the mounting hole (20), and the nut (12) and the limiting ring (13) are arranged on the two sides of the mounting hole (20) respectively.

6. The plastic mold with good exhaust effect according to claim 5, characterized in that: The other end of the moving plate (6) is provided with an electric push rod (5), the electric push rod (5) is fixedly arranged on one side of the support frame (9) and horizontally arranged.

7. The plastic mold with good exhaust effect according to claim 6, characterized in that: The middle of the moving plate (6) is provided with a sliding hole (21), the outer side of the support frame (9) and located between the plug-in rod (8) and the electric push rod (5) is fixedly provided with a guide rod (7), and the guide rod (7) slides through the sliding hole (21).

8. The plastic mold with good exhaust effect according to claim 1, characterized in that: The exhaust pipe (4) is vertically arranged, the support frame (9) is horizontally arranged and has a C-shaped structure, and the plug-in rod (8) is horizontally arranged and elastically arranged between the support frame (9) and the outer side of the lower die seat (2).

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