Waterway separation injection mold

Abstract

The application discloses a water gap separating injection mold, which comprises a movable mold fixing plate, a movable mold plate, a ejector pin fixing structure, a product ejector pin, a water gap top piece and a driving part. The water gap separating injection mold can drive the water gap top piece to move relative to the ejector pin fixing structure by the driving part. When the product and the water gap are demolded, the product ejector pin first ejects the product, and the water gap top piece keeps the water gap from moving relative to the movable mold plate. At this time, the relative movement between the product and the water gap separates the product from the water gap. Then, the ejector pin fixing structure continues to drive the product ejector pin and the water gap top piece to move, so that the product and the water gap are both demolded. The water gap separating injection mold overcomes the problem of low production efficiency and high cost caused by manual separation of the product and the water gap in the prior art, realizes automatic production, and improves the production efficiency.

Description

Technical Field

[0001] This invention relates to the field of production equipment technology, and more specifically, to a sprue separation injection mold. Background Technology

[0002] In current injection molding production, materials are delivered into the mold cavity via runners to form the product. Then, the product in the cavity and the sprue in the runners are simultaneously demolded. Figure 1 As shown, 1 represents the product (remote control receiver window), and 2 represents the sprue. However, when employees manually break off the sprue connected to the product, the techniques and force used vary due to the manual operation. Sometimes, residual sprue material remains after the manual break, requiring repair with a utility knife. In some cases, the breakage of the sprue or the use of a utility knife to repair damages the exterior of the remote control receiver window, resulting in the product being scrapped. This product has a large production volume, and this work mode not only involves high labor intensity in manual sorting but also leads to product damage and scrapping, wasting labor costs and increasing production costs due to scrapping. Summary of the Invention

[0003] This invention discloses a sprue separation injection mold, which solves the problem of low production efficiency and high cost caused by the need for manual separation of product and sprue in the prior art.

[0004] This invention discloses a sprue separation injection mold, including a moving mold fixing plate and a moving mold plate, and further comprising:

[0005] An ejector pin fixing structure is movably disposed between the moving mold fixing plate and the moving mold plate;

[0006] The product ejector pin is disposed on the ejector pin fixing structure, and the ejector pin fixing structure can drive the product ejector pin to protrude from the moving template to eject the product;

[0007] A sprue top piece is provided on the ejector pin fixing structure, and the ejector pin fixing structure can drive the sprue top piece to protrude from the moving template to eject the sprue.

[0008] A driving component is connected to the sprue ejector. The driving component enables the sprue ejector to move toward the moving mold fixing plate. When the ejector pin fixing structure moves away from the moving mold fixing plate, the driving component enables the sprue ejector to move relative to the ejector pin fixing structure.

[0009] The ejector pin fixing structure has a sliding cavity, part of the sprue top is located in the sliding cavity, the driving member is disposed in the sliding cavity, and the driving member is connected to the sprue top in the sliding cavity.

[0010] The driving member comprises a spring, the nozzle ejector has a protrusion movably arranged in the sliding cavity, the spring is sleeved on the nozzle ejector, one end of the spring is in abutment with the protrusion, and the other end of the spring is in abutment with an end face of the sliding cavity away from the movable die fixed plate.

[0011] The nozzle ejector has opposite first and second ends, the first end is used for ejecting the nozzle, the second end protrudes the ejector pin fixing structure, and the second end is capable of abutting against the movable die fixed plate so that the spring is compressed.

[0012] The ejector pin fixing structure comprises an ejector pin bottom plate between the movable die fixed plate and the movable die plate, the product ejector pin is in abutment with the ejector pin bottom plate, the nozzle ejector is movably arranged on the ejector pin bottom plate, the ejector pin bottom plate has a first groove, the first groove constitutes part of the sliding cavity, the protrusion is movably arranged in the first groove, and the second end of the nozzle ejector protrudes the ejector pin bottom plate.

[0013] The ejector pin fixing structure further comprises an ejector pin face plate arranged on a side of the ejector pin bottom plate facing the movable die plate, the product ejector pin is arranged in the ejector pin face plate, the ejector pin face plate has a second groove, the first groove and the second groove are in communication and jointly constitute the sliding cavity, and the spring is arranged in the second groove.

[0014] The nozzle ejector comprises a nozzle ejector pin and a supporting pin, the nozzle ejector pin and the supporting pin are connected to form the protrusion, the nozzle ejector pin is arranged in the ejector pin face plate, and the supporting pin is movably arranged on the ejector pin bottom plate.

[0015] An end of the supporting pin is provided with a supporting pin cup head, and the nozzle ejector pin is in abutment with the supporting pin cup head.

[0016] The maximum distance between the protrusion and a bottom surface of the first groove ranges from 3 mm to 10 mm.

[0017] The nozzle separation injection mold further comprises a guide member arranged between the movable die fixed plate and the movable die plate, the ejector pin fixing structure is movably arranged on the guide member, and a driving direction of the driving member is parallel to a guide direction of the guide member.

[0018] The water gap separation injection mold of the present application uses the driving member to drive the water gap top piece to move relative to the pin fixing structure. When the product and the water gap are demolded, the product pin first lifts the product, while the water gap top piece keeps the water gap from moving relative to the movable mold plate. At this time, the relative movement between the product and the water gap separates the product and the water gap. Then the pin fixing structure continues to drive the product pin and the water gap top piece to move, so that the product and the water gap are both demolded. The problem of low production efficiency and high cost caused by manual separation of the product and the water gap in the prior art is overcome, and automatic production is realized, thereby improving the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic diagram of the water gap separation injection mold of the embodiment of the present application.

[0020] Figure 2 is a structural schematic diagram of the water gap separation injection mold of the embodiment of the present application.

[0021] Figure 3 is a partial schematic view of A of Figure 2

[0022] Figure 4 is another structural schematic diagram of the water gap separation injection mold of the embodiment of the present application.

[0023] Figure 5 is a partial schematic view of B of Figure 4

[0024] Figure 6 is another structural schematic diagram of the water gap separation injection mold of the embodiment of the present application.

[0025] Figure 7 is a partial schematic view of C of Figure 6

[0026] Legend: 1, product; 2, water gap; 10, movable mold fixing plate; 20, movable mold plate; 30, pin fixing structure; 40, product pin; 50, water gap top piece; 60, driving member; 31, pin bottom plate; 32, first groove; 33, pin face plate; 34, second groove; 51, protrusion; 52, water gap pin; 53, pin holder; 70, guide member. DETAILED DESCRIPTION

[0027] The present application will be further described below in conjunction with the embodiments, but is not limited to the contents of the description.

[0028] For example, Figures 2 to 7 ​​​As shown, the present application discloses a water port separation injection mold, which comprises a movable mold fixed plate 10 and a movable mold plate 20, and further comprises: a ejector pin fixing structure 30 movably arranged between the movable mold fixed plate 10 and the movable mold plate 20; a product ejector pin 40 arranged on the ejector pin fixing structure 30, and the ejector pin fixing structure 30 can drive the product ejector pin 40 to protrude from the movable mold plate 20 to eject the product; a water port ejector 50 arranged on the ejector pin fixing structure 30, and the ejector pin fixing structure 30 can drive the water port ejector 50 to protrude from the movable mold plate 20 to eject the water port; and a driving member 60 connected to the water port ejector 50, which can move the water port ejector 50 towards the movable mold fixed plate 10, and when the ejector pin fixing structure 30 moves away from the movable mold fixed plate 10, the driving member 60 can make the water port ejector 50 relatively move with the ejector pin fixing structure 30.

[0029] The water port ejector 50 can relatively move with the ejector pin fixing structure 30 by driving of the driving member 60, when the product and the water port are demolded, the product ejector pin 40 first ejects the product, while the water port ejector 50 keeps the water port relative static with the movable mold plate 20, at this time, the relative movement between the product and the water port makes the product and the water port separate, then the ejector pin fixing structure 30 continues to drive the product ejector pin 40 and the water port ejector 50 to move to complete the demolding of the product and the water port, which overcomes the problem of low production efficiency and high cost caused by manual separation of the product and the water port in the prior art, and realizes automatic production and improves production efficiency.

[0030] In use, the water port separation injection mold is first clamped and injection molded, when the demolding is completed, the movable mold plate 20 and the movable mold fixed plate 10 move away from the fixed mold part, the ejector pin fixing structure 30 moves towards the movable mold plate 20 after the ejector pin of the injection molding machine passes through the movable mold fixed plate 10, at this time, the product ejector pin 40 protrudes from the movable mold plate 20 under the driving of the ejector pin fixing structure 30 to demold the product, at the same time, the driving member 60 controls the water port ejector 50 to relatively move with the ejector pin fixing structure 30 to keep the water port relative static with the movable mold plate 20, that is, the relative movement between the product and the water port realizes the separation of the product and the water port;

[0031] Then, the ejector pin of the injection molding machine continues to drive the ejector pin fixing structure 30 to move, at this time, the driving member 60 cannot continue to drive the water port ejector 50 to relatively move with the ejector pin fixing structure 30, the water port ejector 50 protrudes from the movable mold plate 20 under the driving of the ejector pin fixing structure 30 to demold the water port, and finally the demolding of the product and the water port is completed, which is convenient for next injection molding, Figure 2 It is a structure schematic diagram in clamping injection molding; Figure 4is a structural schematic view at the first time of ejection; Figure 6 is a structural schematic view at the second time of ejection.

[0032] Wherein, during the process of closing the injection mold, the nozzle ejector 50 is forced to move relative to the ejector pin fixed structure 30 so that the driving member 60 can drive the nozzle ejector 50 to move again, to realize the separation of the product and the nozzle at the next time of ejection.

[0033] Specifically, the ejector pin fixed structure 30 is provided with a sliding cavity, part of the nozzle ejector 50 is located in the sliding cavity, the driving member 60 is arranged in the sliding cavity, and the driving member 60 is connected to the nozzle ejector 50 in the sliding cavity. By driving in the sliding cavity, it is convenient to arrange the driving member 60, and at the same time, the movement of the nozzle ejector 50 is reliable.

[0034] Preferably, the driving member 60 includes a spring, the nozzle ejector 50 is formed with a protrusion 51, the protrusion 51 is movably arranged in the sliding cavity, the spring is sleeved on the nozzle ejector 50, and one end of the spring is in abutment with the protrusion 51, and the other end of the spring is in abutment with the end face of the sliding cavity away from the movable mold fixed plate 10. The spring can accumulate elastic force and provide the tendency of the nozzle ejector 50 moving to the movable mold fixed plate 10. When the driving member 60 controls the nozzle ejector 50 to move relative to the ejector pin fixed structure 30 to keep the nozzle and the movable mold plate 20 relatively stationary, the spring gradually releases the elastic force and gradually recovers the length. The change of the length of the spring offsets the movement distance of the ejector pin fixed structure 30, so as to keep the nozzle ejector 50 from moving. When the protrusion 51 abuts on the end face of the sliding cavity close to the movable mold fixed plate 10, the ejector pin fixed structure 30 starts to drive the nozzle ejector 50 to move, so that the nozzle ejector 50 protrudes from the movable mold plate 20 and ejects the nozzle, and the ejection is completed.

[0035] The water nozzle top piece 50 has opposite first and second ends, the first end is used to push out the water nozzle, the second end protrudes from the ejector pin fixing structure 30, and the second end can abut against the movable mold fixing plate 10 to make the spring be compressed. In the process of clamping, the second end abuts against the movable mold fixing plate 10, and as the distance between the ejector pin fixing structure 30 and the movable mold fixing plate 10 gradually decreases, the water nozzle top piece 50 gradually moves towards the movable mold plate 20, at this time the protrusion 51 gradually compresses the spring to make the spring accumulate elastic force. In the process of demolding, the second end gradually moves away from the movable mold fixing plate 10 so that the spring can release the elastic force and recover the length, when the ejector pin fixing structure 30, the product ejector pin 40 and the product move away from the movable mold fixing plate 10, the spring gradually recovers the length to offset the movement of the ejector pin fixing structure, the product ejector pin 40 and the product, so as to keep the water nozzle relatively stationary on the movable mold plate 20, and complete the separation of the product and the water nozzle.

[0036] The ejector pin fixing structure 30 includes an ejector pin bottom plate 31, the ejector pin bottom plate 31 is located between the movable mold fixing plate 10 and the movable mold plate 20, the product ejector pin 40 abuts against the ejector pin bottom plate 31, the water nozzle top piece 50 is movably arranged on the ejector pin bottom plate 31, the ejector pin bottom plate 31 is formed with a first groove 32, the first groove 32 constitutes part of the sliding cavity, the protrusion 51 is movably arranged in the first groove 32, and the second end of the water nozzle top piece 50 protrudes from the ejector pin bottom plate 31.

[0037] The ejector pin fixing structure 30 further includes an ejector pin face plate 33, the ejector pin face plate 33 is arranged on the side of the ejector pin bottom plate 31 facing the movable mold plate 20, the product ejector pin 40 is arranged in the ejector pin face plate 33, the ejector pin face plate 33 is formed with a second groove 34, the first groove 32 and the second groove 34 are in communication with each other to jointly constitute the sliding cavity, and the spring is arranged in the second groove 34.

[0038] In the clamped state, the spring is compressed in the second groove 34, at this time the protrusion 51 has a certain distance to the bottom surface of the first groove 32. In the process of demolding, as the second end moves away from the movable mold fixing plate 10, the elastic force of the spring can extrude the protrusion 51 into the first groove 32, until the end surface of the protrusion 51 abuts against the bottom surface of the first groove 32.

[0039] In order to facilitate the installation of the nozzle top piece 50, the nozzle top piece 50 comprises a nozzle top pin 52 and a supporting pin 53, the connection between the nozzle top pin 52 and the supporting pin 53 forms the protrusion 51, the nozzle top pin 52 is arranged in the top pin panel 33, and the supporting pin 53 is movably arranged on the top pin bottom plate 31. During installation, the supporting pin 53 is placed in the first groove 32, the spring is sleeved on the nozzle top piece 50, then the nozzle top piece 50 is arranged in the second groove 34, and the top pin bottom plate 31 and the top pin panel 33 are combined, at this time, the first groove 32 and the second groove 34 are connected, and the nozzle top pin 52 and the supporting pin 53 are connected with each other to form the nozzle top piece 50.

[0040] The end of the supporting pin 53 is provided with a supporting pin cup head, and the nozzle top pin 52 abuts against the supporting pin cup head. Specifically, the cross section of the supporting pin cup head is the same as the cross section of the first groove 32, so that the supporting pin 53 can reliably support the nozzle top pin 52, and the separation of the product and the nozzle is reliable.

[0041] The maximum distance between the protrusion 51 and the bottom surface of the first groove 32 is 3mm to 10mm. That is, during demolding, the product top pin 40 moves the maximum distance, and then the nozzle top piece 50 starts to move, so that a height difference between the product and the nozzle is formed, and the product and the nozzle are separated. Taking the maximum distance of 5mm as an example, during demolding, when the product top pin 40 moves 5mm, the product is also demolded by 5mm, at this time, the distance between the protrusion 51 on the nozzle top piece 50 and the bottom surface of the first groove 32 changes from 5mm to 0mm, that is, the protrusion 51 abuts against the bottom surface of the first groove 32, and the product top pin 40 and the nozzle top pin 52 continue to move under the action of the top pin fixing structure 30, so that the product and the nozzle are demolded. Since the product is demolded by 5mm first, the 5mm can complete the separation between the product and the nozzle, so that the purpose of automatic production separation is achieved.

[0042] The nozzle separation injection mold further comprises a guide piece 70, the guide piece 70 is arranged between the movable die fixing plate 10 and the movable die plate 20, the top pin fixing structure 30 is movably arranged on the guide piece 70, and the driving direction of the driving piece 60 is parallel to the guide direction of the guide piece 70.

[0043] Obviously, the above embodiments of the present application are merely exemplary and are not intended to limit the embodiments of the present application. Based on the above description, other different forms of changes or modifications can be made by those skilled in the art. Here, all the embodiments cannot be enumerated. Any obvious changes or modifications derived from the technical solutions of the present application are still within the protection scope of the present application.

Claims

1. A sprue separation injection mold, comprising a moving mold fixing plate (10) and a moving mold plate (20), characterized in that, Also includes: Ejector fixing structure (30), which is movably disposed between the moving mold fixing plate (10) and the moving mold plate (20); Product ejector pin (40), the product ejector pin (40) is disposed on the ejector pin fixing structure (30), and the ejector pin fixing structure (30) can drive the product ejector pin (40) to protrude from the moving template (20) to eject the product; A sprue top piece (50) is provided on the ejector pin fixing structure (30), and the ejector pin fixing structure (30) can drive the sprue top piece (50) to protrude from the moving template (20) to eject the sprue; A driving member (60) is connected to the sprue ejector (50). The driving member (60) enables the sprue ejector (50) to move toward the moving mold fixing plate (10). When the ejector pin fixing structure (30) moves away from the moving mold fixing plate (10), the driving member (60) enables the sprue ejector (50) to move relative to the ejector pin fixing structure (30). The ejector pin fixing structure (30) has a sliding cavity, and part of the sprue ejector (50) is located in the sliding cavity; A protrusion (51) is formed on the sprue top member (50), and the protrusion (51) is movably disposed in the sliding cavity; The ejector pin fixing structure (30) includes an ejector pin base plate (31), which is located between the moving mold fixing plate (10) and the moving mold plate (20). A first groove (32) is formed on the ejector pin base plate (31), which constitutes part of the sliding cavity. The protrusion (51) is movably disposed in the first groove (32). The ejector pin fixing structure (30) also includes an ejector pin panel (33), which is disposed on the side of the ejector pin base plate (31) facing the moving template (20). A second groove (34) is formed on the ejector pin panel (33), and the first groove (32) and the second groove (34) are interconnected to form the sliding cavity. The inner diameter of the first groove (32) is larger than the inner diameter of the second groove (34); The sprue top member (50) includes a sprue pin (52) and a support pin (53). The protrusion (51) is formed at the connection between the sprue pin (52) and the support pin (53). The sprue pin (52) is disposed in the pin panel (33), and the support pin (53) is movably disposed on the pin base plate (31). The end of the needle (53) is provided with a needle cup head, and the cross section of the needle cup head is the same as the cross section of the first groove (32).

2. The injection mold for separating sprue nozzles according to claim 1, characterized in that, The driving member (60) is disposed in the sliding cavity, and the driving member (60) is connected to the sprue top member (50) in the sliding cavity.

3. The injection mold for separating sprues according to claim 2, characterized in that, The driving component (60) includes a spring, which is sleeved on the sprue top component (50), and one end of the spring abuts against the protrusion (51), while the other end of the spring abuts against the end face of the sliding cavity away from the moving mold fixing plate (10).

4. The injection mold for separating sprues according to claim 3, characterized in that, The sprue ejector (50) has a first end and a second end opposite to each other. The first end is used to eject the sprue, and the second end protrudes from the ejector pin fixing structure (30). The second end can abut against the moving mold fixing plate (10) to compress the spring.

5. The injection mold for separating sprues according to claim 4, characterized in that, The product ejector pin (40) abuts against the ejector base plate (31), the sprue ejector (50) is movably disposed on the ejector base plate (31), and the second end of the sprue ejector (50) protrudes from the ejector base plate (31).

6. The injection mold for separating sprue nozzles according to claim 5, characterized in that, The product ejector pin (40) is disposed in the ejector pin panel (33), and the spring is disposed in the second groove (34).

7. The injection mold for separating sprue nozzles according to claim 5, characterized in that, The maximum distance between the protrusion (51) and the bottom surface of the first groove (32) ranges from 3 mm to 10 mm.

8. The injection mold for separating sprues according to claim 1, characterized in that, The sprue separation injection mold also includes a guide (70), which is disposed between the moving mold fixing plate (10) and the moving mold plate (20). The ejector pin fixing structure (30) is movably disposed on the guide (70), and the driving direction of the driving member (60) is parallel to the guiding direction of the guide (70).

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