Injection molding one-piece pipe fitting mold

Abstract

The utility model discloses an injection molding one-piece pipe fitting mold which comprises a first sliding block, a second sliding block, a sliding block guide block, a sliding block moving block, a connecting rod, a movable mold insert and a guide plate, the sliding block moving block is connected with the sliding block guide block, and the first sliding block and the second sliding block are arranged on the two sides of the sliding block guide block respectively. I-shaped grooves are formed in the two sides of the sliding block guide block, I-shaped protrusions are arranged on the side faces of the first sliding block and the second sliding block, the I-shaped protrusions are in sliding connection with the I-shaped grooves, the two side edges of the sliding block guide block are obliquely arranged, two guide plates are arranged on the side face of the fixed mold, and the upper ends of the guide plates are fixed to the side face of the fixed mold. The lower end of the guide plate inclines towards the outer side of the mold, the connecting rod is connected with the sliding block moving block, the two ends of the connecting rod are arranged in guide sliding grooves in the guide plate, a movable mold insert is arranged on the movable mold, and the sliding block moving block is arranged in a sliding groove of the movable mold insert. The width of the mold is reduced by utilizing the I-shaped groove, so that the mold can be matched with an injection molding machine with the same injection volume; conventional oil cylinder core pulling is replaced by guiding of the guide plate, product scrapping caused by oil leakage of the oil cylinder is prevented, and the time for core pulling and core feeding of the oil cylinder in the production process is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding pipe fitting molds, in particular to an injection molding conjoined pipe fitting mold. Background Art

[0002] Insert molding refers to a molding method in which a pre-prepared insert of a different material is placed in the mold and then resin is injected, and the molten material is bonded and solidified with the insert to form an integrated product. With the development of insert molding molds with multiple cavities, often during mold design and development, after the products are arranged, the mold frame is too large as a whole, and the injection volume of the injection molding machine required for product production does not match the injection molding machine with the same maximum injection volume. Due to the large frame and the limited spacing between the injection molding machines, the mold cannot be put in, so a larger model injection molding machine or several larger injection molding machines are required during production, resulting in serious waste of production resources, especially for one-piece pipe fittings. The connection parts of one-piece pipe fittings are honeycomb-shaped, so in order to match this type of mold with the injection molding machine with the same injection volume, the mold frame needs to be reduced. Utility Model Content

[0003] In view of the above problems, the utility model aims to provide an injection molding one-piece pipe fitting mold, which reduces the width of the mold and saves costs.

[0004] The technical problem solved by the utility model can be achieved by adopting the following technical scheme: an injection molding one-piece pipe fitting mold, comprising a first slider, a second slider, a slider guide block, a slider motion block, a connecting rod, a movable mold insert and a CAM guide plate, the slider motion block is connected to the slider guide block, the two sides of the slider guide block are respectively provided with a first slider and a second slider, the first slider and the second slider are slidably connected to the slider guide block, the two side edges of the slider guide block are inclined, two CAM guide plates are connected and fixed to the side of the fixed mold, the connecting rod is connected to the slider motion block by a screw, the two ends of the connecting rod are arranged in a guide slide groove on the CAM guide plate, the first slider, the second slider and the slider guide block are arranged in a cavity block, a movable mold insert is arranged on the movable mold, and the slider motion block is arranged in a sliding groove of the movable mold insert.

[0005] I-shaped grooves are arranged on both sides of the slider guide block, and I-shaped protrusions are arranged on the sides of the first slider and the second slider, and the I-shaped protrusions are slidably connected with the I-shaped grooves.

[0006] A fixed mold is arranged above the movable mold, the upper part of the fixed mold is fixedly connected to the upper composite plate, the lower part of the upper composite plate is connected to the upper end of the inclined guide column, the inclined guide column is slidably connected to the inclined hole on the cavity plate slider, the cavity slider is arranged on both sides of the cavity block, a cavity plate is arranged above the cavity block, the cavity plate is arranged on the fixed mold, and the cavity block is fixed on the movable mold.

[0007] Guide sleeves are arranged at both ends of the connecting rod, and the guide sleeves are arranged in guide sliding grooves on the CAM guide plate.

[0008] The upper end of the CAM guide plate is fixed on the side of the fixed mold, and the lower end of the CAM guide plate is inclined toward the outer side of the mold.

[0009] The lower compound plate is provided with a mold angle, the movable mold is located above the mold angle, an ejector compound plate is provided above the lower compound plate, an ejector plate is provided on the ejector compound plate, an ejector plate is provided on the ejector plate, and the ejector passes through the movable mold to the inside of the cavity.

[0010] The ejector plate is provided with a guide post, the guide post passes through the movable mold, a spring is provided between the ejector plate and the movable mold, and the spring is sleeved on the outside of the guide post.

[0011] The front and rear sides of the first sliding block and the second sliding block are provided with convex strips, and a pressure strip is provided above the convex strip, and the pressure strip is fixed on the cavity block.

[0012] The cavity plate is provided with a flow channel which is communicated with the gate.

[0013] The upper double plate is provided with a positioning ring, which is located outside the gate.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the width of the mold is reduced by utilizing the I-shaped groove so that it can be matched with an injection molding machine with the same injection volume; the conventional oil cylinder core pulling is replaced by the CAM guide plate guide to prevent the oil cylinder from leaking and causing the product to be scrapped, while saving the time for oil cylinder core pulling and core feeding during production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the utility model;

[0017] Figure 3 It is a schematic diagram of the core-pulling structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the core-pulling structure of the utility model;

[0019] Figure 5 It is a partial structural schematic diagram of the utility model;

[0020] In the figure: 1-pressing strip, 2-first slider, 3-second slider, 4-slider guide block, 5-slider moving block, 6-screw, 7-connecting rod, 8-guide sleeve, 9-circlip, 10-positioning ring, 11-upper plate, 12-fixed mold, 13-movable mold insert, 14-movable mold, 15-ejector, 16-spring, 17-ejector plate, 18-ejector plate, 19-mold angle, 20-lower plate, 21-CAM guide plate, 22-gate sleeve, 23-runner, 24-product, 25-oblique guide column, 26-cavity slider, 27-cavity block, 28-cavity plate, 29-I-shaped groove, 30-guide slide groove, 31-slide groove, 32-guide column. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0022] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] Combined with Figures 1 to 5As shown, this embodiment discloses an injection molding one-piece pipe fitting mold, including a first slider 2, a second slider 3, a slider guide block 4, a slider motion block 5, a connecting rod 7, a guide sleeve 8, an upper compound plate 11, a fixed mold 12, a movable mold insert 13, a movable mold 14, an ejector 15, a spring 16, a guide column 32, an ejector plate 17, an ejector compound plate 18, a mold angle 19, a lower compound plate 20, a CAM guide plate 21, an inclined guide column 25, a cavity slider 26, a cavity block 27, and a cavity plate 28. The slider motion block 5 is connected to the slider guide block 4, and the first slider 2 and the second slider 3 are respectively arranged on both sides of the slider guide block 4. The first slider 2 and the second slider 3 are slidably connected to the slider guide block 4. Two CAM guide plates 21 are connected and fixed to the side of the fixed mold 12. The upper end of the CAM guide plate 21 is fixed to the side of the fixed mold 12, and the lower end of the CAM guide plate 21 is inclined to the outside of the mold. The connecting rod 7 is connected to the slider motion block 5 by means of screws 6, and both ends of the connecting rod 7 are arranged in guide slots 30 on the CAM guide plate 21, and the connecting rod can slide along the guide slots 30. The first slider 2, the second slider 3 and the slider guide block 4 are arranged in the cavity block 27, and the movable mold insert 13 is arranged on the movable mold 14, and the slider motion block 5 is arranged in the sliding slot 31 of the movable mold insert 13, and the slider motion block 5 can slide along the sliding slot 31.

[0024] Guide sleeves 8 and retaining springs 9 are disposed at both ends of the connecting rod 7 , and the guide sleeves 8 are disposed in guide slots 30 on the CAM guide plate 21 .

[0025] A fixed mold 12 is arranged above the movable mold 14, the upper part of the fixed mold 12 is fixedly connected to the upper composite plate 11, the lower part of the upper composite plate 11 is connected to the upper end of the inclined guide column 25, the inclined guide column 25 is slidably connected to the inclined hole on the cavity plate slider 26, the cavity slider 26 is arranged on both sides of the cavity block 27, a cavity plate 28 is arranged above the cavity block 27, the cavity plate 28 is arranged on the fixed mold, and the cavity block 27 is fixed on the movable mold 14.

[0026] The lower compound plate 20 is provided with a mold angle 19, and the movable mold 14 is located above the mold angle 19. An ejector compound plate 18 is provided above the lower compound plate 20, and an ejector plate 17 is provided on the ejector compound plate 18. An ejector 15 is provided on the ejector plate 17. The ejector 15 passes through the movable mold 14 to the inside of the cavity. A guide column 32 is provided on the ejector compound plate 18, and the guide column 32 passes through the movable mold 14. A spring 16 is provided between the ejector plate 17 and the movable mold 14, and the spring 16 is sleeved on the outside of the guide column 32.

[0027] The two sides of the slider guide block 4 are inclined, and the front end spacing of the two sides is smaller than the rear end spacing. I-shaped grooves 29 are provided on both sides of the slider guide block 4. The sides of the first slider 2 and the second slider 3 are provided with I-shaped protrusions, and the I-shaped protrusions are slidably connected with the I-shaped grooves 29.

[0028] The front and rear sides of the first slider 2 and the second slider 3 are provided with convex strips, and a pressure strip 1 is provided above the convex strips. The pressure strip 1 is fixed on the cavity block 27. The convex strips on the first and second sliders are located between the pressure strip 1 and the cavity block 27, and the convex strips can slide between the pressure strip 1 and the cavity block 27. The two side edges of the slider guide block 4 are inclined, and the I-shaped concave and convex grooves connecting the slider guide block 4 and the first slider 2 and the second slider 3 are also inclined. When the slider guide block 4 slides outward, the first slider 2 and the second slider 3 slide inward and move closer to each other. The two sides of the slider motion block 5 are provided with sliding strips, and a pressure strip is provided above the sliding strip. The pressure strip is fixed on the side wall of the sliding groove 31 of the movable mold insert 13, and the sliding strip can slide under the pressure strip.

[0029] The cavity plate 28 is provided with a flow channel 23 which is connected with the gate. The upper composite plate 11 is provided with a positioning ring 10 which is located outside the gate.

[0030] After the one-piece pipe fitting is injection molded, the mold is opened, and the connecting rod 7 slides along the guide groove 30 on the CAM guide plate 21. The connecting rod 7 drives the slider moving block 5 to move along the sliding groove 31 of the movable mold insert 13. The sliding moving block 5 slides and drives the slider guide block 4 to slide out of the cavity. Through the action of the I-shaped groove, the slider guide block 4 drives the first slider 2 and the second slider 3 to slide inward. At the same time, under the action of the inclined guide column 25, the cavity slider 26 moves to both sides and slides out to separate from the product 24. While sliding outward, the slider guide block 4 also moves downward and drives the cavity block 27 and the movable mold 14 downward. Under the action of the ejector 15, the product 24 is ejected, thereby completing the production of the one-piece pipe fitting.

[0031] The above description is only a preferred implementation mode of the utility model, and does not impose any form of limitation on the utility model. Any simple modification, equivalent change or modification made to the above embodiments based on the technical principle of the utility model still falls within the scope of the technical solution of the utility model.

Claims

1. An injection mold for a one-piece pipe fitting, comprising a first slider (2), a second slider (3), a slider guide block (4), a slider moving block (5), a connecting rod (7), a movable mold insert (13) and a CAM guide plate (21), characterized in that: The slider moving block (5) is connected to the slider guide block (4). A first slider (2) and a second slider (3) are respectively arranged on both sides of the slider guide block (4). The first slider (2) and the second slider (3) are slidably connected to the slider guide block (4). The two side edges of the slider guide block (4) are arranged obliquely. Two CAM guide plates (21) are connected and fixed to the side of the fixed mold (12). The connecting rod (7) is connected to the slider moving block (5) by means of screws (6). Both ends of the connecting rod (7) are arranged in guide grooves (30) on the CAM guide plates (21). The first slider (2), the second slider (3) and the slider guide block (4) are arranged in a cavity block (27). A movable mold insert (13) is arranged on the movable mold (14). The slider moving block (5) is arranged in a sliding groove (31) of the movable mold insert (13).

2. The injection mold for one-piece pipe fitting according to claim 1, characterized in that: I-shaped grooves (29) are provided on both sides of the slider guide block (4), and I-shaped protrusions are provided on the sides of the first slider (2) and the second slider (3), and the I-shaped protrusions are slidably connected to the I-shaped grooves (29).

3. The injection mold for one-piece pipe fitting according to claim 1, characterized in that: A fixed mold (12) is arranged above the movable mold (14); the upper part of the fixed mold (12) is fixedly connected to the upper composite plate (11); the lower part of the upper composite plate (11) is connected to the upper end of an inclined guide column (25); the inclined guide column (25) is slidably connected to an inclined hole on a cavity plate slider (26); the cavity slider (26) is arranged on both sides of a cavity block (27); a cavity plate (28) is arranged above the cavity block (27); the cavity plate (28) is arranged on the fixed mold; and the cavity block (27) is fixed to the movable mold (14).

4. The injection mold for one-piece pipe fitting according to claim 1, characterized in that: Guide sleeves (8) are provided at both ends of the connecting rod (7), and the guide sleeves (8) are arranged in guide sliding grooves (30) on the CAM guide plate (21).

5. The injection mold for one-piece pipe fitting according to claim 1, characterized in that: The upper end of the CAM guide plate (21) is fixed to the side of the fixed mold (12), and the lower end of the CAM guide plate (21) is inclined toward the outside of the mold.

6. The injection mold for one-piece pipe fitting according to claim 1, characterized in that: The mold assembly further comprises a lower composite plate (20), wherein a mold angle (19) is arranged on the lower composite plate (20), the movable mold (14) is located above the mold angle (19), an ejector composite plate (18) is arranged above the lower composite plate (20), an ejector plate (17) is arranged on the ejector composite plate (18), an ejector plate (17) is arranged on the ejector plate (17), and an ejector (15) is arranged on the ejector plate (17), and the ejector (15) passes through the movable mold (14) to the interior of the mold cavity.

7. The injection mold for one-piece pipe fitting according to claim 6, characterized in that: A guide column (32) is arranged on the ejector plate (18), and the guide column (32) passes through the movable mold (14). A spring (16) is arranged between the ejector plate (17) and the movable mold (14), and the spring (16) is sleeved on the outside of the guide column (32).

8. The injection mold for one-piece pipe fitting according to claim 1, characterized in that: The first sliding block (2) and the second sliding block (3) are provided with convex strips at the front and rear sides, and a pressure strip (1) is provided above the convex strips. The pressure strip (1) is fixed on the cavity block (27).

9. The injection mold for one-piece pipe fitting according to claim 3, characterized in that: The cavity plate (28) is provided with a flow channel (23), and the flow channel (23) is connected to the gate.

10. The injection mold for one-piece pipe fitting according to claim 3, characterized in that: A positioning ring (10) is provided on the upper composite plate (11), and the positioning ring (10) is located outside the gate.

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