Water gap cutting device

Abstract

The utility model belongs to the technical field of dies, and particularly relates to a water gap cutting device, a die assembly comprises a die seat, a push block, a first cutter, a second cutter, a first elastic piece, a second elastic piece and a guide block installed on the die seat, and the guide block is provided with a first through hole and a second through hole which are distributed in a crossed mode. The first cutter is slidably mounted in the first through hole, and the second cutter is slidably mounted in the second through hole; the first end of the first cutter is provided with a first cutter edge part used for cutting off the first water gap, and the second end of the first cutter abuts against the push block. The first end of the second cutter is provided with a second cutter edge part used for cutting off the second water gap, and the second end of the second cutter abuts against the push block. The first elastic piece is arranged between the guide block and the second end of the first cutter, and the second elastic piece is arranged between the guide block and the second end of the second cutter. According to the water gap cutting device, two water gaps can be cut off at a time, and the working efficiency of the water gap cutting device is improved.

Description

A water-cutting device Technical Field

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

[0002] Plastic injection molds are the most commonly used molding molds in the production of thermoplastic parts. The corresponding processing equipment for plastic injection molds is a plastic injection molding machine. The plastic is first heated and melted in the heating barrel at the bottom of the injection machine. Then, driven by the screw or plunger of the injection machine, it enters the mold cavity through the injection nozzle and the mold's gating system. The plastic cools and hardens, and the product is then demolded. The sprue refers to the joint between the frame and the part formed during the casting process. The sprue is also called the "gate" or "entry / exit" for the flow of heated liquid material. After the product is molded, the sprue needs to be removed to obtain a complete product. However, traditionally, this is done manually, which is time-consuming, labor-intensive, and inefficient.

[0003] With the continuous advancement of automation technology, some mold manufacturers have designed sprue cutting devices that can automatically cut off the sprue between the frame and the parts. However, existing sprue cutting devices suffer from technical problems such as low efficiency, complex structure, and high cost. Summary of the Invention

[0004] This utility model provides a water-cutting device to solve the technical problems of low efficiency, complex structure and high cost of existing water-cutting devices.

[0005] One embodiment of this utility model provides a sprue cutting device, including a mold assembly and a drive assembly; the mold assembly includes a mold base, a push block, a first cutter, a second cutter, a first elastic element, a second elastic element, and a guide block mounted on the mold base, the guide block is provided with a first through hole and a second through hole distributed in a cross pattern, the first cutter is slidably mounted in the first through hole, and the second cutter is slidably mounted in the second through hole;

[0006] The first cutter has a first cutting edge at its first end for cutting off the first sprue, and the second end of the first cutter abuts against the push block; the second cutter has a second cutting edge at its first end for cutting off the second sprue, and the second end of the second cutter abuts against the push block.

[0007] The first elastic element is disposed between the guide block and the second end of the first cutter, and the second elastic element is disposed between the guide block and the second end of the second cutter;

[0008] The drive component is used to drive the pusher block to move the first cutter and the second cutter.

[0009] Optionally, the second end of the first cutter is provided with a first bending portion, and the first elastic element is disposed between the first bending portion and the guide block;

[0010] The second end of the second cutter is provided with a second bend, and the second elastic element is disposed between the second bend and the guide block.

[0011] Optionally, the first cutter is further provided with a third through hole, through which the second cutter passes, and the first cutter and the second cutter are arranged intersectingly.

[0012] Optionally, the mold base is provided with a first mold protrusion, a second protrusion, and a second mold protrusion that are distributed sequentially at intervals.

[0013] A first through groove is provided between the first mold protrusion and the first protrusion, and the first cutting edge extends into the first through groove to cut off the first sprue;

[0014] A second through groove is provided between the second mold protrusion and the second protrusion, and the second cutting edge extends into the second through groove to cut off the second sprue.

[0015] Optionally, the mold base is further provided with a third protrusion and a fourth protrusion, and the guide block is located between the third protrusion and the fourth protrusion;

[0016] The push block is provided with a first guide hole and a second guide hole spaced apart. The mold assembly also includes a first guide post and a second guide post. The first guide post is mounted on the third protrusion and slidably inserted into the first guide hole. The second guide post is mounted on the fourth protrusion and slidably inserted into the second guide hole.

[0017] Optionally, the mold assembly further includes a third elastic element and a fourth elastic element, the third elastic element being installed between the push block and the third protrusion, and the fourth elastic element being installed between the push block and the fourth protrusion.

[0018] Optionally, the drive assembly includes a top plate and a wedge mounted on the top plate, the wedge having a first inclined surface and the push block having a second inclined surface at the end opposite to the first cutter;

[0019] The drive component moves the pusher block by means of the first inclined surface and the second inclined surface that abut against each other.

[0020] Optionally, the drive assembly further includes a fifth elastic element, a casting tube with a first inner hole, and a pressure block with a second inner hole. The casting tube is fixedly mounted on the top plate, and the pressure block is slidably mounted on the top plate. The first inner hole communicates with the second inner hole. The fifth elastic element is disposed between the casting tube and the pressure block.

[0021] Optionally, the drive assembly further includes a third guide post mounted on the top plate, and the mold base is also provided with a third guide hole, wherein the third guide post can be slidably inserted into the third guide hole.

[0022] In this invention, after the cast product and sprue part solidify on the mold base, the driving assembly drives the push block to move. The push block drives the first cutter and the second cutter to move. The first cutting edge of the first cutter can cut off the first sprue between the cast product and the sprue part, and the second cutting edge of the second cutter can cut off the second sprue between the cast product and the sprue part. The first cutter presses against the first elastic element, and the second cutter compresses the second elastic element. After the driving assembly disengages from the push block, the elastic force of the first elastic element will drive the first cutting edge away from the first sprue, and the elastic force of the second elastic element will drive the second cutting edge away from the second sprue. At this point, the cast product and the sprue part can be removed from the mold base. In this invention, the sprue-cutting device can cut off two sprues at once, improving the working efficiency of the device.

[0023] In addition, the guide block is provided with a first through hole and a second through hole that are distributed in a cross pattern. The first cutter is slidably installed in the first through hole and the second cutter is slidably installed in the second through hole. Thus, the first cutter and the second cutter are distributed in a cross pattern. This water cutting device has high compactness, occupies little space, has a simple structure, and has low manufacturing cost. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 is a schematic diagram of the water-cutting device provided in an embodiment of the present invention when it is in the water-cutting state;

[0026] Figure 2 is a schematic diagram of the water-cutting device provided in an embodiment of the present invention when it is in a separated state;

[0027] Figure 3 is a structural schematic diagram of a mold assembly provided in an embodiment of the present invention;

[0028] Figure 4 is a partial structural schematic diagram of a mold assembly provided in an embodiment of the present invention;

[0029] Figure 5 is a schematic diagram of the structure of the first cutter and the second cutter provided in an embodiment of the present invention;

[0030] Figure 6 is a structural schematic diagram of a mold assembly provided in an embodiment of the present invention;

[0031] Figure 7 is a cross-sectional view of a driving component provided in an embodiment of the present invention.

[0032] The reference numerals in the accompanying drawings are as follows:

[0033] 1. Mold assembly; 11. Mold base; 111. First mold protrusion; 112. First protrusion; 113. Second protrusion; 114. Second mold protrusion; 115. First through groove; 116. Second through groove; 117. Third protrusion; 118. Fourth protrusion; 12. Push block; 121. Second inclined surface; 13. First cutter; 131. First cutting edge; 132. First bending part; 133. Third through hole; 14. Second cutter; 141. Second cutting edge; 1 42. Second bend; 15. First elastic element; 16. Second elastic element; 17. Guide block; 171. First through hole; 172. Second through hole; 18. First guide post; 19. Second guide post; 101. Third elastic element; 102. Fourth elastic element; 2. Drive assembly; 21. Top plate; 22. Wedge; 221. First inclined surface; 23. Casting pipe; 24. Pressing block; 25. Fifth elastic element; 26. Third guide post; 10. Casting product; 20. Sprue. Detailed Implementation

[0034] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0035] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," 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 do not 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. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and 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.

[0037] As shown in Figures 1, 2, 3, and 6, an embodiment of this utility model provides a sprue cutting device, including a mold assembly 1 and a drive assembly 2. The mold assembly 1 includes a mold base 11, a push block 12, a first cutter 13, a second cutter 14, a first elastic element 15, a second elastic element 16, and a guide block 17 mounted on the mold base 11. The guide block 17 has a first through hole 171 and a second through hole 172 that are distributed in a cross pattern. The first cutter 13 is slidably mounted in the first through hole 171, and the second cutter 14 is slidably mounted in the second through hole 172. It can be understood that the first elastic element 15 and the second elastic element 16 include, but are not limited to, springs, etc., and the first cutter 13 and the second cutter 14 are also distributed in a cross pattern. The mold base 11 has a mold cavity for casting the finished product 10.

[0038] The first cutter 13 has a first cutting edge 131 for cutting off the first sprue at its first end, and the second end of the first cutter 13 abuts against the push block 12; the second cutter 14 has a second cutting edge 141 for cutting off the second sprue at its first end, and the second end of the second cutter 14 abuts against the push block 12; it can be understood that the first sprue and the second sprue can be the same sprue on the same casting product 10, or they can be sprue on two different casting products 10.

[0039] The first elastic element 15 is disposed between the guide block 17 and the second end of the first cutter 13, and the second elastic element 16 is disposed between the guide block 17 and the second end of the second cutter 14; the driving assembly 2 is used to drive the push block 12 to move the first cutter 13 and the second cutter 14. Understandably, the rebound force of the first elastic element 15 is used to move the first cutting edge 131 away from the first sprue, and the rebound force of the second elastic element 16 is used to move the second cutting edge 141 away from the second sprue; the push block 12 is used to drive the first cutter 13 to cut off the first sprue, and simultaneously drive the second cutter 14 to cut off the second sprue.

[0040] Specifically, after the cast product 10 and the sprue part 20 solidify on the mold base 11, the driving component 2 drives the push block 12 to move. The push block 12 drives the first cutter 13 and the second cutter 14 to move. The first cutting edge 131 of the first cutter 13 can cut off the first sprue between the cast product 10 and the sprue part 20, and the second cutting edge 141 of the second cutter 14 can cut off the second sprue between the cast product 10 and the sprue part 20. The first cutter 13 will press the first elastic member 15, and the second cutter 14 will compress the second elastic member 16. After the driving component 2 disengages from the push block 12, the elastic force of the first elastic member 15 will drive the first cutting edge 131 away from the first sprue, and the elastic force of the second elastic member 16 will drive the second cutting edge 141 away from the second sprue. At this time, the cast product 10 and the sprue part 20 can be removed from the mold base 11. In this utility model, the sprue cutting device can cut off two sprues at once, which improves the working efficiency of the sprue cutting device.

[0041] In addition, the guide block 17 is provided with a first through hole 171 and a second through hole 172 that are distributed in a cross pattern. The first cutter 13 is slidably installed in the first through hole 171, and the second cutter 14 is slidably installed in the second through hole 172. Thus, the first cutter 13 and the second cutter 14 are distributed in a cross pattern. This water cutting device has high compactness, occupies little space, has a simple structure, and has low manufacturing cost.

[0042] In one embodiment, as shown in FIG6, the second end of the first cutter 13 is provided with a first bending portion 132, and the first elastic member 15 is disposed between the first bending portion 132 and the guide block 17; it can be understood that the first bending portion 132 can play the role of supporting the first elastic member 15, ensuring the stability of the first elastic member 15 installed between the guide block 17 and the first cutter 13.

[0043] The second end of the second cutter 14 is provided with a second bend 142, and the second elastic member 16 is disposed between the second bend 142 and the guide block 17. Understandably, the second bend 142 can support the second elastic member 16, ensuring the stability of the second elastic member 16 installed between the guide block 17 and the second cutter 14.

[0044] In one embodiment, as shown in FIG5, the first cutter 13 is further provided with a third through hole 133, through which the second cutter 14 passes, and the first cutter 13 and the second cutter 14 are arranged intersectingly. Understandably, the design of the third through hole 133 allows the first cutter 13 and the second cutter 14 to be distributed intersectingly, improving the compactness of the water-cutting device.

[0045] In one embodiment, as shown in FIG4, the mold base 11 is provided with a first mold protrusion 111, a first protrusion 112, a second protrusion 113, and a second mold protrusion 114 arranged sequentially at intervals. It can be understood that the first mold protrusion 111, the first protrusion 112, the second protrusion 113, and the second mold protrusion 114 are all disposed on the top surface of the mold base 11. The mold groove around the first mold protrusion 111 is used for casting a first cast product, and the mold groove around the second mold protrusion 114 is used for casting a second cast product. The first mold protrusion 111, the first protrusion 112, the second protrusion 113, and the second mold protrusion 114 are glue injection channels, and the sprue part 20 can be formed after the casting solidifies.

[0046] A first through groove 115 is provided between the first mold protrusion 111 and the first protrusion 112. The first cutting edge 131 extends into the first through groove 115 to cut off the first sprue. Specifically, during the process of the first cutting edge 131 cutting off the first sprue, the first cutting edge 131 abuts against the first mold protrusion 111 to cut off the first sprue, thereby ensuring the stability of the first cutter 13 in cutting off the first sprue.

[0047] A second through groove 116 is provided between the second mold protrusion 114 and the second protrusion 113, and the second cutting edge 141 extends into the second through groove 116 to cut off the second sprue. Specifically, during the process of the second cutting edge 141 cutting off the second sprue, the second cutting edge 141 abuts against the second mold protrusion 114 to cut off the second sprue, thereby ensuring the stability of the second cutter 14 in cutting off the second sprue.

[0048] In one embodiment, as shown in Figures 3 and 4, the mold base 11 is further provided with a third protrusion 117 and a fourth protrusion 118, and the guide block 17 is located between the third protrusion 117 and the fourth protrusion 118; it can be understood that the third protrusion 117 and the fourth protrusion 118 are both disposed on the top surface of the mold base 11.

[0049] The push block 12 is provided with a first guide hole and a second guide hole spaced apart. The mold assembly 1 also includes a first guide post 18 and a second guide post 19. The first guide post 18 is mounted on the third protrusion 117 and slidably inserted into the first guide hole, and the second guide post 19 is mounted on the fourth protrusion 118 and slidably inserted into the second guide hole. Specifically, during the process of the push block 12 pushing the first cutter 13 and the second cutter 14, the first guide post 18 slides in the first guide hole, and the second guide post 19 slides in the second guide hole, thereby ensuring the stability of the push block 12 in pushing the first cutter 13 and the second cutter 14.

[0050] In one embodiment, as shown in FIG3, the mold assembly 1 further includes a third elastic element 101 and a fourth elastic element 102. The third elastic element 101 is installed between the push block 12 and the third protrusion 117, and the fourth elastic element 102 is installed between the push block 12 and the fourth protrusion 118. It is understood that the third elastic element 101 and the fourth elastic element 102 include, but are not limited to, springs, etc. The third elastic element 101 and the fourth elastic element 102 can drive the push block 12 away from the third protrusion 117 and the fourth protrusion 118, thereby causing the first cutting edge portion 131 to move away from the first sprue, and the second cutting edge portion 141 to move away from the second sprue.

[0051] Specifically, during the process of the pusher block 12 pushing the first cutter 13 and the second cutter 14, the pusher block 12 first compresses the third elastic element 101 and the fourth elastic element 102. After the third elastic element 101 and the fourth elastic element 102 are compressed to a certain extent, the pusher block 12 then pushes the first cutter 13 and the second cutter 14. In this embodiment, the design of the third elastic element 101 and the fourth elastic element 102 makes the pusher block 12 make flexible contact with the first cutter 13 and the second cutter 14, reducing the noise generated during the operation of the water-cutting device.

[0052] In one embodiment, as shown in Figures 1, 2, and 7, the driving assembly 2 includes a top plate 21 and a wedge 22 mounted on the top plate 21. The wedge 22 has a first inclined surface 221, and the push block 12 has a second inclined surface 121 at one end opposite to the first cutter 13. The driving assembly 2 drives the push block 12 to move through the mutually abutting first inclined surface 221 and second inclined surface 121. Understandably, the wedge 22 is disposed on the bottom surface of the top plate 21. In this embodiment, the driving assembly 2 drives the push block 12 to move through the mutually abutting first inclined surface 221 and second inclined surface 121, allowing the push block 12 to push the first cutter 13 and the second cutter 14 forward as a whole, preventing one end of the push block 12 from tilting up and ensuring the stability of the first cutter 13 and the second cutter 14 in cutting the water outlet.

[0053] In one embodiment, as shown in FIG7, the driving assembly 2 further includes a fifth elastic element 25, a casting tube 23 having a first inner hole, and a pressure block 24 having a second inner hole. The casting tube 23 is fixedly mounted on the top plate 21, and the pressure block 24 is slidably mounted on the top plate 21. The first inner hole communicates with the second inner hole. The fifth elastic element 25 is disposed between the casting tube 23 and the pressure block 24. Understandably, the casting tube 23 is mounted on the top surface of the top plate 21, and the pressure block 24 is slidably mounted on the bottom surface of the top plate 21. The inner hole of the casting tube 23 communicates with the inner hole of the pressure block 24, allowing liquid casting material to be injected into the mold cavity on the mold base 11 through the first and second inner holes. In addition, the fifth elastic element 25 includes, but is not limited to, springs, etc., so that when the pressure block 24 is low to the mold base 11, the pressure block 24 will compress the fifth elastic element 25 upward. The fifth elastic element 25 makes the casting tube 23 and the pressure block 24 in flexible contact, ensuring the stability of the docking between the drive assembly 2 and the mold assembly 1.

[0054] In one embodiment, as shown in Figures 1 and 2, the driving assembly 2 further includes a third guide post 26 mounted on the top plate 21, and the mold base 11 is also provided with a third guide hole, in which the third guide post is slidably inserted. Understandably, during the process of the driving assembly 2 pushing the push block 12, the third guide post 26 is inserted into the third guide hole and slides along the third guide hole, thereby ensuring the stability of the docking between the driving assembly 2 and the mold assembly 1.

[0055] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A water-cutting nozzle device, characterized in that, The system includes a mold assembly and a drive assembly. The mold assembly includes a mold base, a push block, a first cutter, a second cutter, a first elastic element, a second elastic element, and a guide block mounted on the mold base. The guide block has a first through hole and a second through hole that are arranged in a cross pattern. The first cutter is slidably mounted in the first through hole, and the second cutter is slidably mounted in the second through hole. The first end of the first cutter has a first cutting edge for cutting off a first sprue, and the second end of the first cutter abuts against the push block. The first end of the second cutter has a second cutting edge for cutting off a second sprue, and the second end of the second cutter abuts against the push block. The first elastic element is disposed between the guide block and the second end of the first cutter, and the second elastic element is disposed between the guide block and the second end of the second cutter. The drive assembly is used to drive the push block to move the first cutter and the second cutter.

2. The water-cutting device according to claim 1, characterized in that, The second end of the first cutter is provided with a first bending portion, and the first elastic element is disposed between the first bending portion and the guide block; the second end of the second cutter is provided with a second bending portion, and the second elastic element is disposed between the second bending portion and the guide block.

3. The water-cutting device according to claim 1, characterized in that, The first cutter is also provided with a third through hole, through which the second cutter passes, and the first cutter and the second cutter are arranged intersectingly.

4. The water-cutting device according to claim 1, characterized in that, The mold base is provided with a first mold protrusion, a second protrusion, and a second mold protrusion arranged in sequence at intervals; a first through groove is provided between the first mold protrusion and the first protrusion, and the first cutting edge extends into the first through groove to cut off the first sprue; a second through groove is provided between the second mold protrusion and the second protrusion, and the second cutting edge extends into the second through groove to cut off the second sprue.

5. The water-cutting device according to claim 1, characterized in that, The mold base is also provided with a third protrusion and a fourth protrusion, and the guide block is located between the third protrusion and the fourth protrusion; the push block is provided with a first guide hole and a second guide hole distributed at intervals, and the mold assembly also includes a first guide post and a second guide post, the first guide post is installed on the third protrusion and slidably inserted into the first guide hole, and the second guide post is installed on the fourth protrusion and slidably inserted into the second guide hole.

6. The water-cutting device according to claim 5, characterized in that, The mold assembly further includes a third elastic element and a fourth elastic element, the third elastic element being installed between the push block and the third protrusion, and the fourth elastic element being installed between the push block and the fourth protrusion.

7. The water-cutting device according to claim 1, characterized in that, The driving assembly includes a top plate and a wedge mounted on the top plate. The wedge has a first inclined surface, and the push block has a second inclined surface at the end opposite to the first cutter. The driving assembly drives the push block to move through the mutually abutting first and second inclined surfaces.

8. The water-cutting device according to claim 7, characterized in that, The drive assembly further includes a fifth elastic element, a casting tube with a first inner hole, and a pressure block with a second inner hole. The casting tube is fixedly installed on the top plate, and the pressure block is slidably installed on the top plate. The first inner hole communicates with the second inner hole. The fifth elastic element is disposed between the casting tube and the pressure block.

9. The water-cutting device according to claim 7, characterized in that, The drive assembly also includes a third guide post mounted on the top plate, and the mold base is also provided with a third guide hole, in which the third guide post can be slidably inserted.

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