Insert pin structure capable of being quickly disassembled and assembled

Abstract

The utility model relates to the field of injection molding, in particular to an insert pin structure capable of being quickly disassembled and assembled, which comprises a mold base and an insert pin, a mold core is arranged at the top of the mold base through a groove, the insert pin is arranged on the inner bottom surface of the groove, the insert pin is connected with the mold core in a sliding manner, an air blowing pipe is arranged in the mold base, and the air blowing pipe is connected with the mold core. The two ends of the air blowing pipe penetrate through the two sides of the mold base to form air blowing openings, and the top of the air blowing pipe penetrates through the mold base to form an air outlet; wherein a fastening assembly used for fixing the insert pin is arranged in the side face of the mold base, an anti-blocking filter plug and a pair of air blowing pipes are arranged in the air blowing opening, under the normal condition, one air blowing pipe is used, the other air blowing pipe is used for standby application to prevent the situation that the air blowing pipes cannot be used normally after being blocked, and the fastening assembly can stably fix the insert pin in the mold base to prevent the insert pin from being fixed unstably. In addition, the insert pin can be rapidly replaced, an anti-blocking filter plug is further arranged in the air outlet, foreign matter is prevented from entering the air blowing pipe to cause blocking, and air blown by an air pump and other devices can be filtered.

Description

Technical Field

[0001] The utility model relates to the field of injection molding, in particular to a quick disassembly and assembly needle inserting structure. Background Art

[0002] The insert pin in the injection mold is a mold accessory that matches the template. It is usually installed on the template base. Due to the small diameter of the insert pin, many of them can be arranged on the template base. During the injection molding process, the insert pin is mainly responsible for guiding the injection plastic from the nozzle to each cavity of the mold.

[0003] Different injection molded parts require different inserts. In order to facilitate the replacement of inserts, it is necessary to use a structure that can quickly disassemble and assemble the inserts. For example, the prior art Chinese Patent Publication No. "CN108621391A" discloses an insert pin for injection molds. An insert pin for injection molds includes an insert pin body and a cooling tube. The insert pin body is provided with a first cavity extending along the axial direction of the insert pin body. The top end of the cooling tube extends into the first cavity. A gap is provided between the cooling tube and the first cavity. The top end surface of the cooling tube contacts the inner top surface of the first cavity. The top end of the cooling tube is provided with a groove body connecting the inside of the cooling tube and the first cavity. The cooling tube is connected to a water inlet pipe, and the first cavity is connected to a water outlet pipe. The problem that the structure of the insert pin is not well integrated with the cooling water circuit and the cooling range is small in the prior art is solved.

[0004] Some of the inlay pins are fixed on the mold. In actual operation, when performing injection molding compatible replacement, the mold needs to be removed first and then the mold is disassembled and reassembled for compatible replacement before the inlay pin can be replaced. Such cumbersome disassembly and assembly steps will on the one hand lead to longer disassembly and assembly time, and on the other hand, the longer disassembly and assembly time will lead to lower production efficiency and lower practicality. Utility Model Content

[0005] The utility model aims to solve the above-mentioned shortcoming of the prior art that it is inconvenient to disassemble and replace the inserting pin, and proposes a quick disassembly and assembly inserting pin structure.

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

[0007] A quick disassembly and assembly pin-inserting structure is designed, comprising a mold base and a pin-inserting structure. A mold core is provided at the top of the mold base through a groove, and the pin-inserting structure is provided on the inner bottom surface of the groove. The pin-inserting structure is slidably connected with the mold core. An air blowing pipe is provided in the mold base, and the two ends of the air blowing pipe penetrate the two sides of the mold base to form an air blowing port, and the top of the air blowing pipe penetrates the mold base to form an air outlet.

[0008] Wherein, a fastening assembly for fixing the insert pin is provided inside the side surface of the mold base, and an anti-blocking filter plug is provided inside the air outlet.

[0009] Furthermore, the fastening assembly includes a fixing seat, which is fixedly mounted on the inner bottom surface of the groove and located below the mold core. The air outlet is communicated with the fixing seat, and the insert pin is slidably connected inside the fixing seat.

[0010] Furthermore, a wedge-shaped groove is opened on the side of the insert pin, a mounting seat is fixedly installed inside the side of the mold base, a straight rod is fixedly installed inside the mounting seat, one end of the straight rod is slidably connected with a positioning pin, and the positioning pin passes through the fixing seat and can engage with the wedge-shaped groove.

[0011] Furthermore, one end of the straight rod is slidably connected to a connecting block in the mounting seat, and a spring is sleeved on the outer periphery of the straight rod. Both ends of the spring are respectively fixedly connected to the positioning pin and the side of the connecting block.

[0012] Furthermore, round rods are fixedly installed on both sides of the straight rod in the mounting seat and are rotatably connected with a screw rod, the connecting block is slidably connected to the round rod and is threadedly connected to the screw rod, and one end of the screw rod passes through the mounting seat and has an embedded hole.

[0013] Furthermore, the anti-blocking filter plug includes a hole cover plate, which can be inserted into the air port, a filter cover is fixedly installed on one side of the hole cover plate, and an elastic protrusion is fixedly installed on the periphery of the filter cover, the elastic protrusion is tightly pressed against the inner wall of the air port, and a connecting port is provided on the other side of the hole cover plate.

[0014] The utility model proposes a quick disassembly and assembly pin structure, which has the beneficial effects that: the utility model is provided with a pair of air blowing pipes communicated with a fixing seat, one of which is used under normal circumstances and the other is used as a spare to prevent it from being blocked and cannot be used normally, the pin can be firmly fixed in the mold base by the fastening assembly to prevent it from being unstable, and the pin can also be quickly replaced, and an anti-blocking filter plug is also provided in the air outlet, which can prevent foreign matter from entering the air blowing pipe to cause blockage on the one hand, and can filter the air blown in by devices such as air pumps on the other hand. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the needle of the utility model;

[0018] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of area A;

[0019] Figure 5 It is a structural schematic diagram of the anti-blocking filter plug of the utility model.

[0020] In the figure: 1. mold base; 11. groove; 2. inlay pin; 3. mold core; 4. air blowing pipe; 41. air blowing port; 42. air outlet; 5. fastening assembly; 51. fixing seat; 52. wedge-shaped groove; 53. mounting seat; 54. straight rod; 55. positioning pin; 56. connecting block; 57. spring; 58. round rod; 59. screw rod; 591. embedded hole; 6. anti-blocking filter plug; 61. hole cover; 62. filter cover; 63. elastic protrusion; 64. connecting port. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-5 A quick disassembly and assembly pin-inserting structure comprises a mold base 1 and a pin-inserting 2. A mold core 3 is provided on the top of the mold base 1 through a groove 11, and the pin-inserting 2 is provided on the inner bottom surface of the groove 11. The pin-inserting 2 is slidably connected with the mold core 3. An air blowing pipe 4 is provided in the mold base 1. Both ends of the air blowing pipe 4 penetrate through both sides of the mold base 1 to form an air blowing port 41, and the top of the air blowing pipe 4 penetrates through the mold base 1 to form an air outlet 42. One of the pair of air blowing ports 41 is provided with the anti-blocking filter plug 6, and the other is blocked with a rubber block. The advantage of providing a pair of air blowing ports 41 is that one is used as a spare to prevent the other from blocking the pin-inserting 2 and making it impossible to replace.

[0023] A fastening assembly 5 for fixing the insert pin 2 is provided in the side surface of the mold base 1 , and an anti-blocking filter plug 6 is provided in the air blowing port 41 .

[0024] Furthermore, the fastening assembly 5 includes a fixing seat 51, which is fixedly installed on the inner bottom surface of the groove 11 and is located below the mold core 3. The blowing port 41 is communicated with the fixing seat 51, and the insert pin 2 is slidably connected inside the fixing seat 51.

[0025] Furthermore, a wedge-shaped groove 52 is provided on the side of the insert pin 2, a mounting seat 53 is fixedly installed inside the side of the mold base 1, a straight rod 54 is fixedly installed inside the mounting seat 53, one end of the straight rod 54 is slidably connected with a positioning pin 55, the positioning pin 55 passes through the fixing seat 51 and can engage with the wedge-shaped groove 52, and a sealing ring is provided on the end of the insert pin 2 that is inserted into the fixing seat 51 to maintain the sealing. After the air port 41 is connected to the air pump, the insert pin 2 can be ejected and replaced by filling it with air.

[0026] In more detail, one end of the straight rod 54 is located in the mounting seat 53 and is slidably connected to a connecting block 56. A spring 57 is provided on the outer periphery of the straight rod 54. Both ends of the spring 57 are respectively fixedly connected to the locating pin 55 and the side of the connecting block 56. The locating pin 55 and the connecting block 56 are connected together by the spring 57, so that the connecting block 56 can drive the locating pin 55 to move. In addition, the elastic effect of the spring 57 can well press against the inlay pin 2 to prevent damage.

[0027] In general, round rods 58 are fixedly installed on both sides of the straight rod 54 in the mounting seat 53 and are rotatably connected with screw rods 59. The connecting block 56 is slidably connected to the round rods 58 and is threadedly connected to the screw rods 59. One end of the screw rod 59 passes through the mounting seat 53 and is provided with an embedded hole 591. The screw rod 59 is rotated through the embedded hole 591 and then cooperates with the round rods 58 to move the connecting block 56.

[0028] Finally, the anti-blocking filter plug 6 includes a hole cover plate 61, which can be plugged into the air port 41, a filter cover 62 is fixedly installed on one side of the hole cover plate 61, and an elastic protrusion 63 is fixedly installed on the periphery of the filter cover 62, the elastic protrusion 63 is tightly pressed against the inner wall of the air port 41, and a connecting port 64 is provided on the other side of the hole cover plate 61, and activated carbon is provided in the filter cover 62 to filter dust and particles in the air to achieve an anti-blocking effect, and a sealing gasket is provided on the side of the hole cover plate 61.

[0029] Working mode: when working, the air pump is connected through the connecting port 64, the screw 59 is rotated and then the round rod 58 is matched to make the connecting block 56 drive the positioning pin 55 to move, and the positioning pin 55 is disengaged from the wedge-shaped groove 52 and then the air pump is used to fill the gas to eject the inlay pin 2.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A quick disassembly and assembly pin-inserting structure, comprising a mold base (1) and a pin-inserting structure (2), characterized in that: The top of the mold base (1) is provided with a mold core (3) through a groove (11), and the insert pin (2) is provided on the inner bottom surface of the groove (11), and the insert pin (2) is slidably connected with the mold core (3). An air blowing pipe (4) is provided in the mold base (1), and the two ends of the air blowing pipe (4) penetrate the two sides of the mold base (1) to form an air blowing port (41), and the top of the air blowing pipe (4) penetrates the mold base (1) to form an air outlet (42); Wherein, a fastening assembly (5) for fixing the insert pin (2) is provided inside the side surface of the mold base (1), and an anti-blocking filter plug (6) is provided inside the air blowing port (41).

2. A quick disassembly and assembly needle inserting structure according to claim 1, characterized in that: The fastening assembly (5) comprises a fixing seat (51), wherein the fixing seat (51) is fixedly mounted on the inner bottom surface of the groove (11) and is located below the mold core (3); the air outlet (41) is communicated with the fixing seat (51), and the insert pin (2) is slidably connected inside the fixing seat (51).

3. A quick disassembly and assembly needle inserting structure according to claim 2, characterized in that: A wedge-shaped groove (52) is formed on the side of the insert pin (2); a mounting seat (53) is fixedly installed inside the side of the mold base (1); a straight rod (54) is fixedly installed inside the mounting seat (53); a positioning pin (55) is slidably connected to one end of the straight rod (54); the positioning pin (55) passes through the fixing seat (51) and can be engaged with the wedge-shaped groove (52).

4. A quick disassembly and assembly needle inserting structure according to claim 3, characterized in that: One end of the straight rod (54) is located in the mounting seat (53) and is slidably connected to a connecting block (56). A spring (57) is sleeved on the outer periphery of the straight rod (54). Two ends of the spring (57) are respectively fixedly connected to the positioning pin (55) and the side surface of the connecting block (56).

5. The quick disassembly and assembly needle-inserting structure according to claim 4, characterized in that: Round rods (58) are fixedly mounted on both sides of the straight rod (54) in the mounting seat (53) and are rotatably connected to a screw rod (59); the connecting block (56) is slidably connected to the round rod (58) and is threadedly connected to the screw rod (59); one end of the screw rod (59) passes through the mounting seat (53) and is provided with an embedded hole (591).

6. The quick disassembly and assembly needle inserting structure according to claim 1, characterized in that: The anti-clogging filter plug (6) comprises a hole cover plate (61), the hole cover plate (61) can be inserted into the air outlet (41), a filter cover (62) is fixedly mounted on one side of the hole cover plate (61), and an elastic protrusion (63) is fixedly mounted on the periphery of the filter cover (62), the elastic protrusion (63) is tightly abutted against the inner wall of the air outlet (41), and a connecting port (64) is provided on the other side of the hole cover plate (61).

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