Pitched roof mechanism for plastic mold

Abstract

The utility model discloses an angle ejector mechanism for a plastic mould, which comprises a base, an ejector block, a lower mould and an angle ejector rod, a cooling cavity is arranged in the ejector block, a plurality of spoilers are arranged in the cooling cavity, a water inlet pipe and a water outlet pipe are respectively arranged in the lower mould, and metal hoses are arranged at the top ends of the water inlet pipe and the water outlet pipe. A second connector is arranged at the top end of the metal hose, an external pipe is arranged on the outer wall of one side of the top block, and a first connector is arranged at the other end, away from the top block, of the external pipe. A cold medium can be introduced into the cooling cavity through the water inlet pipe to refrigerate the ejector block, so that plastic injection molding liquid in contact with the ejector block can be cooled, and the situation that when plastic is discharged, the position, in contact with the ejector block, of the plastic is not cooled and adheres to the ejector block can be prevented; and the spoilers can play a role in blocking the cold medium, so that the flow rate of the cold medium can be reduced, and the cold air of the cold medium can be fully used.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic molds, in particular to an inclined ejector mechanism for plastic molds. Background Art

[0002] A plastic mold is a mold for plastic processing. A plastic mold is the abbreviation of a combined mold used for compression molding, extrusion molding, injection molding, blow molding and low-foaming molding. The coordinated changes of the mold's convex and concave molds and the auxiliary molding system can process a series of plastic parts of different shapes and sizes. Plastic molds are the mother of industry. The release of new products will involve plastics. A sloping top structure will be set inside the mold to eject the molded plastic.

[0003] For example, a tilting mechanism for a precision mold with announcement number CN21890620U and announcement date 2023.04.25 includes a slide seat, a slide rail is provided in the middle of the upper end of the slide seat, a slider is provided in the slide rail, a connecting groove is provided in the middle of the upper end of the slider, a tilting rod is provided in the connecting groove, and rotating shafts are provided on both side walls of the tilting rod extending into the connecting groove, bearings are provided at the position where the side walls of the slider are connected to the rotating shaft, a guide block is provided on the tilting rod, and a slide groove is provided at the position where the guide block is connected to the tilting rod.

[0004] As mentioned above and in the prior art, a cooling structure is usually not provided inside the top block, so the position where the top block contacts the plastic cannot cool the plastic. When the plastic is discharged, the position where the plastic contacts the top block is prone to adhesion. Therefore, it is urgent to design a tilting top mechanism for a plastic mold to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to provide a tilting mechanism for a plastic mold to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A tilting mechanism for a plastic mold comprises a base, a top block, a lower mold and a tilting rod, wherein a cooling cavity is provided inside the top block, and a plurality of baffles are arranged inside the cooling cavity, a water inlet pipe and a water outlet pipe are respectively arranged inside the lower mold, and metal hoses are arranged at the top ends of the water inlet pipe and the water outlet pipe, and a connector 2 is arranged at the top end of the metal hose, an external pipe is arranged on the outer wall of one side of the top block, and a connector 1 is arranged at the other end of the external pipe away from the top block, the connector 1 is threadedly inserted into the interior of the connector 2, and a sealing gasket is arranged on the outer wall of one side of the connector 1.

[0008] Furthermore, a connecting block is clamped inside the lower mold, and an insert block inserted into the connecting block is integrally connected to the outer wall of the bottom of the top block. A cavity is opened inside the connecting block, and a movable insert rod is slidably connected inside the cavity, and the movable insert rod is inserted into the insert block.

[0009] Furthermore, a pull rod is provided on the outer wall of one side of the movable plug rod, and the pull rod extends to the outside of the connecting block, and a fixing spring connected to the movable plug rod is provided on the inner wall of the cavity, and the fixing spring is sleeved on the outside of the pull rod.

[0010] Furthermore, a limit block is fixed to the inner wall of the base by bolts, and the outside of the limit block is slidably connected to a slide seat, the top end of the inclined push rod is rotatably connected to the inside of the connecting block by a rotating shaft, and the bottom end of the inclined push rod is rotatably connected to the inside of the slide seat by a rotating shaft.

[0011] Furthermore, a guide block is fixed inside the lower mold by bolts, and the inclined ejector rod passes through the inside of the guide block.

[0012] Furthermore, an extrusion block and an anti-deflection rod are respectively provided on the outer wall of the top of the base, the extrusion block slides through the top of the lower mold, and the anti-deflection rod is slidably inserted into the interior of the lower mold.

[0013] Furthermore, a buffer seat is arranged on the inner wall of the bottom of the lower mold, and spring seats are arranged on the inner wall of the bottom of the buffer seat and the outer wall of the bottom of the base, and buffer springs are arranged on the inner walls of the two spring seats facing each other.

[0014] In the above technical scheme, the utility model provides a tilting mechanism for a plastic mold, (1) through the cooling chamber, baffle, lower mold, water inlet pipe, water outlet pipe, external pipe, metal hose, connector 1 and connector 2, the cold medium can be introduced into the cooling chamber through the water inlet pipe to cool the top block, and then the plastic injection liquid in contact with the top block can be cooled, which can prevent the plastic from sticking to the top block when the plastic is unloaded, and the baffle can block the cold medium, reduce the flow rate of the cold medium, and make full use of the cold air of the cold medium; (2) through the connecting block and plug block , cavity, movable plug rod, pull rod and fixed spring, the movable plug rod is pulled out from the inside of the plug block by the pull rod, and the top block is pulled upward, so that the top block can be removed from the connecting block, and the top block can be replaced according to the required shape of the top block, with higher flexibility; (3) through the provided buffer seat, spring seat and buffer spring, when the extrusion block is extruded by the plastic upper mold, the base will be driven to move downward, and the elastic force of the buffer spring can buffer the base. When the extrusion block is not extruded by the plastic upper mold, the elastic force of the buffer spring can push the base to move upward. Due to the action of the guide block and the inclined ejector rod, the inclined ejector rod will drive the top block to move upward along the guide block to eject the formed plastic. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 The utility model is a three-dimensional structural schematic diagram of an embodiment of a tilting lift mechanism for a plastic mold.

[0017] Figure 2 The utility model provides a schematic diagram of the internal structure of an embodiment of a tilting lift mechanism for a plastic mold.

[0018] Figure 3 The utility model is a schematic diagram of a connector structure provided by an embodiment of a tilting lift mechanism for a plastic mold.

[0019] Figure 4 The utility model is a schematic diagram of the internal structure of the cavity provided by an embodiment of the inclined ejector mechanism for a plastic mold.

[0020] Description of reference numerals:

[0021] 1. Base; 2. Top block; 3. Cooling chamber; 4. Baffle; 5. Lower mold; 6. Water inlet pipe; 7. Water outlet pipe; 8. External pipe; 9. Metal hose; 10. Connector 1; 11. Connector 2; 12. Sealing pad; 13. Connecting block; 14. Insert block; 15. Cavity; 16. Moving insert rod; 17. Pull rod; 18. Fixed spring; 19. Guide block; 20. Limit block; 21. Sliding seat; 22. Slanted top rod; 23. Buffer seat; 24. Spring seat; 25. Buffer spring; 26. Extrusion block; 27. Anti-deflection rod. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] like Figure 1-4 As shown, an inclined ejector mechanism for a plastic mold provided by an embodiment of the utility model comprises a base 1, an ejector block 2, a lower mold 5 and an inclined ejector rod 22, a cooling chamber 3 is provided inside the ejector block 2, and a plurality of baffles 4 are arranged inside the cooling chamber 3, a water inlet pipe 6 and a water outlet pipe 7 are respectively arranged inside the lower mold 5, and metal hoses 9 are arranged at the top ends of the water inlet pipe 6 and the water outlet pipe 7, a connector 2 11 is arranged at the top end of the metal hose 9, an external pipe 8 is arranged on the outer wall on one side of the ejector block 2, and a connector 10 is arranged on the other end of the external pipe 8 away from the ejector block 2, the connector 10 is threadedly inserted into the interior of the connector 2 11, and a sealing gasket 12 is arranged on the outer wall on one side of the connector 10.

[0024] The utility model provides a slanted ejector mechanism for a plastic mold, comprising a base 1, an ejector block 2, a lower mold 5 and a slanted ejector rod 22. A cooling chamber 3 is provided inside the ejector block 2, and a plurality of baffles 4 are arranged inside the cooling chamber 3. A water inlet pipe 6 and a water outlet pipe 7 are respectively arranged inside the lower mold 5, and metal hoses 9 are arranged at the top ends of the water inlet pipe 6 and the water outlet pipe 7. A connector 2 11 is arranged at the top end of the metal hose 9. An external pipe 8 is arranged on the outer wall of one side of the ejector block 2, and a connector 10 is arranged at the other end of the external pipe 8 away from the ejector block 2. The connector 10 is threadedly inserted into the interior of the connector 2 11, and a sealing gasket 12 is arranged on the outer wall of one side of the connector 10. A cold medium can be passed into the interior of the cooling chamber 3 through the water inlet pipe 6, so that the ejector block 2 can be refrigerated, and then the plastic injection molding liquid at the position in contact with the ejector block 2 can be cooled, so that the plastic at the position is formed, and the adhesion of the plastic at the position in contact with the ejector block 2 during the ejection of the plastic can be avoided. The arranged metal hose 9 will not affect the lifting and lowering of the ejector block 2.

[0025] By setting: the cold medium can be introduced into the interior of the cooling chamber 3 through the water inlet pipe 6 to cool the top block 2, and then the plastic injection molding liquid in contact with the top block 2 can be cooled, which can prevent the situation where the contact position between the plastic and the top block 2 is not cooled and sticks when the plastic is unloaded, and the baffle 4 can block the cold medium and reduce the flow rate of the cold medium, so as to fully utilize the cold air of the cold medium.

[0026] In one embodiment provided by the present utility model, Figure 2 and Figure 4 As shown, a connecting block 13 is clamped inside the lower mold 5, and an insert block 14 is integrally connected to the outer wall of the bottom of the top block 2 and is inserted into the connecting block 13. A cavity 15 is opened inside the connecting block 13, and a movable insert rod 16 is slidably connected to the inside of the cavity 15. The movable insert rod 16 is inserted into the insert block 14, so as to fix the top block 2 on the connecting block 13.

[0027] In another embodiment provided by the present utility model, Figure 2 and Figure 4 As shown, a pull rod 17 is provided on the outer wall of one side of the movable plug rod 16, and the pull rod 17 extends to the outside of the connecting block 13, and a fixing spring 18 connected to the movable plug rod 16 is provided on the inner wall of the cavity 15, and the fixing spring 18 is sleeved on the outside of the pull rod 17, and the elastic force of the fixing spring 18 can push the movable plug rod 16 to be inserted into the inside of the plug block 14.

[0028] In another embodiment provided by the present utility model, Figure 2 As shown, a limit block 20 is fixed to the inner wall of the base 1 by bolts, and the outside of the limit block 20 is slidably connected to a slide seat 21, the top end of the inclined push rod 22 is rotatably connected to the inside of the connecting block 13 through a rotating shaft, and the bottom end of the inclined push rod 22 is rotatably connected to the inside of the slide seat 21 through a rotating shaft, and the limit block 20 can guide the slide seat 21.

[0029] In one embodiment provided by the present utility model, Figure 2 As shown, a guide block 19 is fixed inside the lower mold 5 by bolts, and the inclined ejector rod 22 runs through the inside of the guide block 19 , and the guide block 19 can guide the inclined ejector rod 22 .

[0030] In another embodiment provided by the present utility model, Figure 2 As shown, an extrusion block 26 and an anti-deflection rod 27 are respectively provided on the outer wall of the top of the base 1. The extrusion block 26 slides through the top of the lower mold 5, and the anti-deflection rod 27 is slidably inserted into the interior of the lower mold 5. When the extrusion block 26 is squeezed by the upper mold, it will drive the base 1 to move downward.

[0031] In another embodiment provided by the present utility model, Figure 2As shown, a buffer seat 23 is provided on the inner wall of the bottom of the lower mold 5, and spring seats 24 are provided on the inner wall of the bottom of the buffer seat 23 and the outer wall of the bottom of the base 1, and buffer springs 25 are provided on the inner walls of the two spring seats 24 facing each other upward and downward, and the elastic force of the buffer springs 25 can push the base 1 to move upward.

[0032] Working principle: When the upper plastic mold moves downward and injects the plastic with the lower mold 5, it will squeeze the extrusion block 26, and the extrusion block 26 will drive the base 1 to move downward. The elastic force of the buffer spring 25 can buffer the base 1, and the cold medium is introduced into the interior of the cooling chamber 3 through the water inlet pipe 6, which can cool the top block 2, and then the plastic injection liquid at the position in contact with the top block 2 can be cooled to form the plastic at this position. When the cold medium flows inside the cooling chamber 3, the baffle 4 can block the cold medium and reduce the flow rate of the cold medium, so as to make full use of the cold air of the cold medium, and then the cold medium after fully dissipating the cold air is passed out through the water outlet pipe 7 to achieve circulating cooling. After the plastic is formed, as the upper mold moves up and away The lower mold 5, at this time, the extrusion block 26 is not squeezed by the upper mold, and the elastic force of the buffer spring 25 can push the base 1 to move up. At this time, the slide 21 will slide on the limit block 20. Due to the action of the guide block 19 and the inclined ejector rod 22, the inclined ejector rod 22 will drive the ejector block 2 to move up along the guide block 19 to eject the molded plastic. Because the ejector block 2 will cooperate with the lower mold 5 and the upper mold, plastics of different shapes can be injection molded. When the ejector block 2 needs to be replaced according to processing requirements, the connector 2 11 is separated from the connector 1 10 threads, and then the movable plug rod 16 is pulled by the pull rod 17 to move out from the inside of the plug block 14, and the ejector block 2 is pulled upward, so that the ejector block 2 can be removed from the connecting block 13, and the ejector block 2 can be replaced according to the required shape of the ejector block 2.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A tilting mechanism for a plastic mold, comprising a base (1), a lift block (2), a lower mold (5) and a tilting rod (22), characterized in that: A cooling cavity (3) is provided inside the top block (2), and a plurality of baffles (4) are provided inside the cooling cavity (3); a water inlet pipe (6) and a water outlet pipe (7) are provided inside the lower mold (5), and metal hoses (9) are provided at the top ends of the water inlet pipe (6) and the water outlet pipe (7); a second connector (11) is provided at the top end of the metal hose (9); an external tube (8) is provided on the outer wall of one side of the top block (2), and a first connector (10) is provided at the other end of the external tube (8) away from the top block (2); the first connector (10) is threadedly inserted into the interior of the second connector (11), and a sealing gasket (12) is provided on the outer wall of one side of the first connector (10).

2. A tilting mechanism for a plastic mold according to claim 1, characterized in that: A connecting block (13) is clamped inside the lower mold (5), and an insert block (14) is integrally connected to the outer wall of the bottom of the top block (2) and is inserted into the connecting block (13). A cavity (15) is provided inside the connecting block (13), and a movable insert rod (16) is slidably connected inside the cavity (15), and the movable insert rod (16) is inserted into the inside of the insert block (14).

3. A plastic mold lift mechanism according to claim 2, characterized in that: A pull rod (17) is provided on the outer wall of one side of the movable insertion rod (16), and the pull rod (17) extends to the outside of the connecting block (13); a fixed spring (18) connected to the movable insertion rod (16) is provided on the inner wall of the cavity (15), and the fixed spring (18) is sleeved on the outside of the pull rod (17).

4. A plastic mold lift mechanism according to claim 3, characterized in that: A limit block (20) is fixed to the inner wall of the base (1) by bolts, and the outside of the limit block (20) is slidably connected to a slide seat (21), the top end of the inclined push rod (22) is rotatably connected to the inside of the connecting block (13) by a rotating shaft, and the bottom end of the inclined push rod (22) is rotatably connected to the inside of the slide seat (21) by a rotating shaft.

5. A plastic mold lift mechanism according to claim 4, characterized in that: A guide block (19) is fixed inside the lower mold (5) by bolts, and a tilting push rod (22) passes through the inside of the guide block (19).

6. The inclined lift mechanism for plastic mold according to claim 1, characterized in that: An extrusion block (26) and an anti-deflection rod (27) are respectively arranged on the outer wall of the top of the base (1); the extrusion block (26) slides through the top of the lower mold (5), and the anti-deflection rod (27) is slidably inserted into the interior of the lower mold (5).

7. The inclined lift mechanism for plastic mold according to claim 1, characterized in that: A buffer seat (23) is arranged on the inner wall of the bottom of the lower mold (5), and spring seats (24) are arranged on the inner wall of the bottom of the buffer seat (23) and the outer wall of the bottom of the base (1), and buffer springs (25) are arranged on the inner walls of the two spring seats (24) facing each other.

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