Die capable of cutting off water gap

Abstract

The utility model provides a die capable of cutting off a water gap. The die capable of cutting off the water gap comprises an upper die set and a lower die set, in a mold closing state, an injection molding cavity is formed between the upper mold set and the lower mold set; the material injection channel is arranged in the upper die set in a penetrating mode and communicates with the injection molding cavity; the ejection mechanism is arranged on the lower module in a penetrating manner; in the mold opening state, the product in the mold cavity is ejected out through the ejection mechanism; the cutting mechanism is arranged on the ejection mechanism in a penetrating manner; in the mold closing state, the water gap position of the product in the mold cavity is cut; according to the die capable of cutting off the water gap, the water gap of a product can be cut while forming is conducted, manual water gap cutting off is avoided, efficiency is improved, and meanwhile cost is reduced; in addition, the cutting mechanism is adopted for cutting the water gap of the product, the cutting consistency can be ensured while the cutting position is ensured, and the overall defective rate is further reduced.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a mold capable of cutting off the sprue. Background Technology

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. This method commonly uses molds, where molten raw material is injected into the mold cavity, and the desired product is formed through processes such as pressurization and cooling. Due to its advantages such as high production speed, high efficiency, and the ability to automate operation, injection molding is widely used in the product processing field.

[0003] In existing thin-walled plastic products, since the feed is from a side gate, there is a connection between the product and the gate after injection molding. The common method is to separate the product from the gate by manual cutting or trimming. However, manual gate removal is inefficient and increases costs. In addition, the manual gate removal operation is inconsistent, which cannot guarantee the uniformity of the product appearance after gate removal, resulting in an increased defect rate. Utility Model Content

[0004] The purpose of this utility model is to provide a mold capable of cutting off the sprue, which can solve the above-mentioned technical problems;

[0005] This utility model provides a mold capable of cutting off sprue marks, comprising:

[0006] Upper mold assembly and lower mold assembly; when in the mold closed state, an injection cavity is formed between the upper mold assembly and the lower mold assembly;

[0007] The injection channel is installed through the upper module and is connected to the injection cavity;

[0008] The ejection mechanism is mounted on the lower module; in the open state, the product inside the mold cavity is ejected through the ejection mechanism.

[0009] The cutting mechanism is mounted on the ejection mechanism; in the mold-closed state, it cuts the sprue position of the product in the mold cavity.

[0010] As a further technical solution, the lower module includes:

[0011] First fixing plate, support plate and first template;

[0012] The first fixing plate, the support plate, and the first template are arranged in sequence, and an expansion space is provided between the first fixing plate and the support plate;

[0013] One end of the ejection mechanism is set in the telescopic space, and the other end passes through the support plate and the first template;

[0014] One end of the return needle is set on the ejection mechanism, and the other end passes through the support plate and the first template in sequence; and a first reset device is sleeved on the return needle;

[0015] The cutting mechanism is mounted on the ejection mechanism.

[0016] As a further technical solution, the ejection mechanism includes:

[0017] The first ejector plate and the second ejector plate are arranged adjacent to each other and are set in the telescopic space by a sliding post; one end of the return needle is set on the second ejector plate;

[0018] Several push pins are arranged with one end on the first ejector plate and the other end passing through the first ejector plate, the support plate and the first template in sequence.

[0019] As a further technical solution, a first displacement groove is provided on the first fixed plate, and a second displacement groove is provided on the first ejector plate; the first displacement groove and the second displacement groove form a displacement space; one end of the cutting mechanism is set in the displacement space.

[0020] As a further technical solution, the cutting mechanism includes:

[0021] The movable block is set within the displacement space;

[0022] Several top blocks are set at one end on the movable block, and the other end passes through the first ejector plate, the second ejector plate, the support plate and the first template in sequence.

[0023] As a further technical solution, a cut-off head is provided at the other end of the top block.

[0024] As a further technical solution, a first reset groove is provided on the movable block, and a second reset groove is provided on the first ejector plate; a reset space is formed between the first reset groove and the second reset groove; and a second reset device is provided in the reset space.

[0025] As a further technical solution, the upper module includes:

[0026] The second fixing plate and the second template are connected together.

[0027] As a further technical solution, an organic nozzle is provided on the second fixed plate, and the nozzle is connected to the injection channel.

[0028] As a further technical solution, when the mold is closed, an injection cavity is formed between the first mold plate and the second mold plate.

[0029] This invention utilizes an upper and lower mold assembly to deliver raw materials into the injection cavity between the upper and lower mold assemblies via a sprue for product molding. After molding, a first action is performed: a cutting mechanism cuts the sprue from the product, separating it from the gate. During the separation process, a second action occurs: an ejector mechanism pushes the product and sprue out of the lower mold assembly, completing product molding while simultaneously removing the sprue. Compared to existing technologies, this invention allows for sprue cutting during molding, avoiding manual sprue removal, thus improving efficiency and reducing costs. Furthermore, the cutting mechanism ensures consistent cutting positions and further reduces the overall defect rate. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a perspective view of a mold capable of cutting off sprue marks according to the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of a mold capable of cutting off the sprue at one angle according to the present invention;

[0033] Figure 3 This is a schematic diagram of another angle of the mold capable of cutting off the sprue of the present invention;

[0034] Figure 4 This is a structural schematic diagram of a mold capable of cutting off the sprue from another angle according to the present invention;

[0035] Figure 5 for Figure 4 A sectional view of section AA;

[0036] Figure 6 for Figure 4 A sectional view of section BB;

[0037] Figure 7 for Figure 6 Enlarged structural diagram of section X in the middle.

[0038] Explanation of reference numerals in the attached figures:

[0039] 100 - Upper module; 101 - Second fixing plate; 102 - Second template; 103 - Machine nozzle;

[0040] 200-Lower module; 201-First fixing plate; 202-Support plate; 203-First template; 204-Telescopic space; 205-Return pin; 206-First reset device;

[0041] 300-Injection Channel;

[0042] 400 - Ejection mechanism; 401 - First ejector plate; 402 - Second ejector plate; 403 - Sliding column; 404 - Pusher pin; 405 - Displacement space;

[0043] 500-Cutting mechanism; 501-Moving block; 502-Top block; 503-Reset space; 504-Second reset device; 600-Product. Detailed Implementation

[0044] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0045] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] like Figure 1-7 As shown, the present invention proposes a mold capable of cutting off sprue marks, comprising:

[0048] The upper mold assembly 100 and the lower mold assembly 200 are in the mold-closed state, forming an injection cavity between them. It should be noted that the upper mold assembly 100 and the lower mold assembly 200 are respectively mounted on a molding device, and are opened and closed by the molding device. Furthermore, several guide pillars are provided between the upper mold assembly 100 and the lower mold assembly 200 to restrict their movement path, thereby ensuring the stability of their operation. Since these guide pillars utilize existing technology, this invention will not further elaborate on them.

[0049] The injection channel 300 is installed through the upper mold 100 and is connected to the injection cavity. When the upper mold 100 and the lower mold 200 are in the mold-closed state, the external injection equipment injects the molten raw material into the injection channel 300 and transmits it to the injection cavity through the injection channel 300. The product 600 is formed through the injection cavity.

[0050] Ejection mechanism 400 is mounted on lower mold assembly 200; in the mold open state, product 600 is ejected from the mold cavity via ejection mechanism 400; cutting mechanism 500 is mounted on ejection mechanism 400; in the mold closed state, the sprue position of product 600 in the mold cavity is cut; after product 600 is formed in the injection cavity, external molding equipment drives cutting mechanism 500 to cut off the sprue position of product 600; and after cutting, cutting mechanism 500 resets; at this time, upper mold assembly 100 and lower mold assembly 200 perform mold opening operation, and at the same time, external molding equipment drives ejection mechanism 400 to operate, and ejection mechanism 400 simultaneously holds product 600 and sprue, completing one product 600 forming, sprue cutting and product 600 ejection operation; cyclic operation realizes mass production of product 600.

[0051] The technical solution of this utility model, through the setting of the upper mold group 100 and the lower mold group 200, uses the injection channel 300 to transport raw materials into the injection cavity between the upper mold group 100 and the lower mold group 200 to form product 600. After forming, an action is performed first, the sprue position of product 600 is cut by the cutting mechanism 500 to separate product 600 from the sprue. During the separation of upper mold group 100 and lower mold group 200, a second action is performed, the product 600 and the sprue are pushed out of lower mold group 200 by ejection mechanism 400, thus completing the forming of product 600 and cutting off the sprue of product 600 at the same time. Compared with the prior art, the sprue of product 600 can be cut off at the same time as forming, avoiding manual cutting of the sprue, improving efficiency and reducing costs. In addition, the use of the cutting mechanism 500 to cut the sprue of product 600 can ensure the cutting position and the consistency of cutting, further reducing the overall defect rate.

[0052] In addition, in this utility model, the lower module 200 includes a first fixing plate 201, a support plate 202, and a first template 203; the first fixing plate 201, the support plate 202, and the first template 203 are arranged sequentially, and a telescopic space 204 is provided between the first fixing plate 201 and the support plate 202; one end of the ejection mechanism 400 is disposed in the telescopic space 204, and the other end passes through the support plate 202 and the first template 203; one end of the return needle 205 is disposed on the ejection mechanism 400, and the other end passes through the support plate 202 and the first template 203 in sequence; and a first reset device 206 is sleeved on the return needle 205; the cutting mechanism 500 passes through the ejection mechanism 400; and the first fixing plate 201, the support plate 202, and the first template 203 are connected by the first fixing plate 201, the support plate 202, and the first template 203. 1. Connect to the molding equipment; support the support plate 202 and the first template 203 through the return pin 205, thereby forming a telescopic space 204 between the support plate 202 and the first fixed plate 201; after one action, the molding equipment drives the ejection mechanism 400 to move. One end of the ejection mechanism 400 moves in the telescopic space 204, and the other end slides in the support plate 202 and the first template 203, ejecting the product 600 and the sprue from the injection cavity; completing the demolding of the product 600; after the product 600 is demolded, the external molding equipment resets, so that the force applied by the external molding equipment to the ejection mechanism 400 is eliminated, and the ejection mechanism 400 is reset under the action of the first reset device 206;

[0053] The ejection mechanism 400 includes a first ejector plate 401, a second ejector plate 402, and a plurality of push pins 404. The first ejector plate 401 and the second ejector plate 402 are arranged adjacent to each other and are disposed within the telescopic space 204 via sliding columns 403. A first reset device 206 is sleeved on the sliding column 403. In this invention, the number of sliding columns 403 is set according to actual needs to ensure the stability of the first ejector plate 401 and the second ejector plate 402 during movement. The specific number is determined according to actual needs and will not be described further in this invention. One end of the return pin 205 is disposed on the second ejector plate 402. One end of the plurality of push pins 404 is disposed on the first ejector plate 401, and the other end passes through the first ejector plate 401, the support plate 202, and the first template 203 in sequence. During demolding, the molding equipment pushes the first ejector plate 401 and the second ejector plate 402 to move, and through the second ejector pin... Plate 402 drives several push pins 404 to move; due to the presence of the first reset device 206, the first reset device 206 is squeezed during the movement of the first ejector plate 401 and the second ejector plate 402, so that the first reset device 206 is in a compressed state; after the product 600 and the sprue are pushed out by several push pins 404, the external molding equipment is reset, and at the same time, the force applied by the external molding equipment to the first ejector plate 401 and the second ejector plate 402 is eliminated. Under the action of the first reset device 206, the first ejector plate 401 and the second ejector plate 402 are reset, and the several push pins 404 are reset under the pull of the first ejector plate 401 and the second ejector plate 402; the product 600 is ejected from the mold once; it should be noted that the number of push pins 404 depends on the actual situation, and this utility model will not explain it further; and in this utility model, the first reset device 206 is preferably a spring.

[0054] like Figure 5 As shown, a first displacement groove is provided on the first fixed plate 201, and a second displacement groove is provided on the first ejector plate 401; the first displacement groove and the second displacement groove form a displacement space 405; one end of the cutting mechanism 500 is disposed in the displacement space 405; during one movement, the upper module 100 and the lower module 200 are in the mold-closed state; the cutting mechanism 500 can move within the displacement space 405 and cut off the sprue of the product 600; this ensures that the cutting mechanism 500 has sufficient movement space; and also ensures that the first ejector plate 401 and the second ejector plate 402 are stationary while the cutting mechanism 500 is moving.

[0055] As shown in 6-7, the cutting mechanism 500 includes: a movable block 501 and several top blocks 502. The movable block 501 is disposed within the displacement space 405. One end of each top block 502 is disposed on the movable block 501, and the other end passes sequentially through the first ejector plate 401, the second ejector plate 402, the support plate 202, and the first template 203. During use, the external forming equipment operates, pushing the movable block 501 to move, and through the movable block 501, driving the several top blocks 502 to move, thereby cutting off the sprue of the product 600. It should be noted that when the movable block 501 and the several top blocks 502 move... During operation, the upper mold assembly 100 and the lower mold assembly 200 are in the closed state, which restricts the product 600 within the injection cavity. Furthermore, when several ejector blocks 502 cut off the sprue of the product 600, displacement of the product 600 is prevented, thus avoiding a change in the cutting position. Specifically, a cutting head is provided at the other end of the ejector block 502. During use, the cutting head cuts off the sprue of the product 600. The number of ejector blocks 502 depends on actual needs, but it is necessary to ensure that the ejector blocks 502 correspond to the sprue position of the product 600 to ensure smooth operation of the sprue during the cutting phase.

[0056] In addition, the moving block 501 is provided with a first reset groove, and the first ejector plate 401 is provided with a second reset groove; a reset space 503 is formed between the first reset groove and the second reset groove; the second reset device 504 is disposed in the reset space 503; when the sprue of the product 600 is cut off, the moving block 501 will compress the second reset device 504; after the sprue of the product 600 is cut off by several ejector blocks 502, the external molding equipment resets, and at this time the force applied by the external molding equipment to the moving block 501 disappears; under the action of the second reset device 504, the moving block 501 resets, and then the moving block 501 drives several ejector blocks 502 to reset; and in this utility model, the number of the second reset device 504 is set according to the actual situation, and this utility model will not further explain this; preferably, the second reset device 504 is a spring.

[0057] The upper mold assembly 100 includes a second fixed plate 101 and a second mold plate 102, with the second mold plate 102 connected to the second fixed plate 101. It is connected to an external molding device via the second fixed plate 101, and the second mold plate 102 is driven by the external molding device. An nozzle 103 is provided on the second fixed plate 101, which is connected to the injection channel 300. When the external injection device injects material into the injection channel 300, the nozzle 103 allows for better determination of the injection position, ensuring that the molten material accurately enters the injection channel 300. Simultaneously, in the mold-closed state, an injection cavity is formed between the first mold plate 203 and the second mold plate 102. Through the cooperation of the first mold plate 203 and the second mold plate 102, the product 600 is molded. When the sprue of the product 600 is removed, the cooperation of the first mold plate 203 and the second mold plate 102 prevents displacement of the product 600 within the injection cavity, improving the accuracy of the removal.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A mold capable of cutting off sprue marks, characterized in that, include: Upper mold assembly (100) and lower mold assembly (200); when in the mold-closed state, an injection cavity is formed between the upper mold assembly (100) and the lower mold assembly (200); The injection channel (300) is disposed through the upper module (100) and communicates with the injection cavity; An ejection mechanism (400) is mounted on the lower module (200); in the open mold state, the product (600) is ejected from the mold cavity by the ejection mechanism (400); The cutting mechanism (500) is mounted on the ejector mechanism (400); in the mold-closed state, it cuts the sprue position of the product (600) in the mold cavity.

2. The mold capable of cutting off the sprue according to claim 1, characterized in that, The lower module (200) includes: The first fixing plate (201), the support plate (202), and the first template (203); The first fixing plate (201), the support plate (202) and the first template (203) are arranged in sequence, and a telescopic space (204) is provided between the first fixing plate (201) and the support plate (202); One end of the ejection mechanism (400) is disposed in the telescopic space (204), and the other end passes through the support plate (202) and the first template (203); One end of the return needle (205) is mounted on the ejection mechanism (400), and the other end passes through the support plate (202) and the first template (203) in sequence; and a first reset device (206) is sleeved on the return needle (205); The cutting mechanism (500) is mounted on the ejection mechanism (400).

3. The mold capable of cutting off the sprue according to claim 2, characterized in that, The ejection mechanism (400) includes: The first ejector plate (401) and the second ejector plate (402) are arranged adjacent to each other and are disposed in the telescopic space (204) by means of a sliding post (403); one end of the return needle (205) is disposed on the second ejector plate (402); Several push pins (404) are arranged at one end on the first ejector plate (401) and at the other end through the first ejector plate (401), the support plate (202) and the first template (203) in sequence.

4. The mold capable of cutting off the sprue according to claim 3, characterized in that, The first fixed plate (201) is provided with a first displacement groove, and the first ejector plate (401) is provided with a second displacement groove; the first displacement groove and the second displacement groove form a displacement space (405); one end of the cutting mechanism (500) is disposed in the displacement space (405).

5. The mold capable of cutting off the sprue according to claim 4, characterized in that, The cutting mechanism (500) includes: A movable block (501) is disposed within the displacement space (405); Several top blocks (502) are arranged at one end on the moving block (501) and at the other end passing through the first ejector plate (401), the second ejector plate (402), the support plate (202) and the first template (203) in sequence.

6. The mold capable of cutting off the sprue according to claim 5, characterized in that, The other end of the top block (502) is provided with a cut-off head.

7. The mold capable of cutting off the sprue according to claim 5, characterized in that, The movable block (501) is provided with a first reset groove, and the first ejector plate (401) is provided with a second reset groove; a reset space (503) is formed between the first reset groove and the second reset groove; and a second reset device (504) is disposed in the reset space (503).

8. The mold capable of cutting off the sprue according to claim 2, characterized in that, The upper module (100) includes: The second fixing plate (101) and the second template (102) are connected to the second fixing plate (101).

9. The mold capable of cutting off the sprue gate according to claim 8, characterized in that, An organic nozzle (103) is provided on the second fixing plate (101), and the nozzle (103) is connected to the injection channel (300).

10. The mold capable of cutting off the sprue gate according to claim 8, characterized in that, When the mold is closed, an injection cavity is formed between the first template (203) and the second template (102).

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