Valve needle dismounting tool for hot runner

Abstract

The utility model relates to the technical field of mold dismounting, and discloses a hot runner valve needle dismounting tool which comprises a supporting seat, magnets are arranged on the two sides of the supporting seat, an adjusting mechanism is arranged on the top of the supporting seat, and a mounting mechanism is arranged on the surface of the adjusting mechanism. The adjusting mechanism comprises a transverse plate, the transverse plate is arranged at the top of the supporting seat, a gear ring is rotationally connected into the transverse plate, a horizontal gear is meshed with the surface of the gear ring, an output shaft is fixedly connected to the inner ring of the horizontal gear, a motor is fixedly connected to the bottom of the output shaft, and a positioning plate is fixedly connected to the bottom of the motor. And a vertical plate is fixedly connected between the transverse plate and the positioning plate. According to the valve needle dismounting tool of the hot runner, the position of the valve needle connecting piece can be flexibly adjusted according to the position of the valve needle, the valve needles at different positions can be flexibly dismounted, and the dismounting efficiency of the valve needle is improved.

Description

Technical Field

[0001] This utility model relates to the field of mold disassembly technology, and in particular to a valve needle disassembly tool for hot runners. Background Technology

[0002] Injection molds are favored by people for their advantages such as fast production speed, high efficiency, automated operation, and wide variety of colors and patterns.

[0003] Patent publication number CN219426116U discloses a tooling for disassembling valve pins in a mold hot runner system. The tooling includes a fixing device and a lifting device connected to the fixing device and movable vertically. A valve pin connector is located at the lower end of the lifting device, and a drive device connected to the lifting device is located at the upper end. The advantages of this invention are its simple structure and convenient operation. The tooling is securely connected to the mold body through the cooperation of the fixing block and the magnet. Even in cases of abnormal heating of the mold's hot runner system or valve pin assembly jammed on the hot runner plate, mold maintenance personnel can use the drive device to drive the lifting device, which in turn drives the valve pin connector to rise synchronously, thus enabling the valve pin to be smoothly extracted and disassembled without damaging it.

[0004] The applicant believes that the following disadvantages exist: the hot runner valve needle disassembly fixture of the mold disassembles the valve needle by using the valve needle connector, but the horizontal position of the valve needle connector is fixed, which makes it impossible to flexibly adjust the valve needle connector according to the position of the valve needle, thus reducing the efficiency of valve needle disassembly. Summary of the Invention

[0005] The purpose of this invention is to provide a valve needle disassembly tool for hot runners to solve the problems mentioned in the background art.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A valve needle disassembly fixture for a hot runner includes a support base, magnets on both sides of the support base, an adjustment mechanism on the top of the support base, and an installation mechanism on the surface of the adjustment mechanism.

[0008] The adjusting mechanism includes a horizontal plate, which is disposed on the top of the support base. A toothed ring is rotatably connected inside the horizontal plate. A flat gear meshes on the surface of the toothed ring. An output shaft is fixedly connected to the inner ring of the flat gear. A motor is fixedly connected to the bottom of the output shaft. A positioning plate is fixedly connected to the bottom of the motor. A vertical plate is fixedly connected between the horizontal plate and the positioning plate.

[0009] Preferably, a cylinder is fixedly connected to the top of the positioning plate, a fixing plate is fixedly connected to the top of the cylinder, and a support frame is fixedly connected between the fixing plate and the support base. The fixing plate and the support frame cooperate to stably install the cylinder on the support base, ensuring the structural stability of the cylinder when it is working and avoiding the impact of force shaking on the disassembly accuracy.

[0010] Preferably, the number of cylinders is four, and the four cylinders are of the same specification. The four cylinders of the same specification work synchronously, which can provide a balanced driving force, ensure that the positioning plate and related components are subjected to uniform force during the up and down movement, avoid tilting or jamming, and improve the stability and reliability of valve needle disassembly.

[0011] Preferably, the installation mechanism includes a support member, which is fixedly connected to the inner wall of the toothed ring. A support rod is inserted into the support member, and the bottom surface of the support rod is threaded. A valve needle connector is threaded to the bottom of the support rod. The support member provides an installation base for the support rod, and the support rod is quickly positioned by means of insertion.

[0012] Preferably, two valve needle connectors are provided, and the two valve needle connectors are symmetrically arranged in the toothed ring. The two symmetrically distributed valve needle connectors can simultaneously disassemble the valve needles at two positions, improving work efficiency. In addition, the symmetrical structure can balance the force when the toothed ring rotates, reducing shaking.

[0013] Preferably, a limiting rod is inserted into the limiting groove, and the limiting rod is fixedly connected to the top of the arc-shaped plate. The insertion and engagement of the limiting rod and the limiting groove play a circumferential limiting role on the support rod, preventing the support rod from rotating due to force during operation, and ensuring the accurate alignment of the valve needle connector and the valve needle.

[0014] Preferably, the limiting rod surface is provided with threads, and a locking nut is threadedly connected to the limiting rod surface. The locking nut is located on the top of the support member. The locking nut is threadedly connected to the limiting rod to firmly fix the support rod to the support member, preventing it from loosening when moving up and down or disassembling the valve needle, and ensuring the stability of the device operation.

[0015] Compared with the prior art, this utility model provides a valve needle disassembly tool for hot runners, which has the following advantages:

[0016] 1. The valve needle disassembly fixture of this hot runner, through the set adjustment mechanism, can flexibly adjust the position of the valve needle connector according to the position of the valve needle, and can flexibly disassemble the valve needle in different positions, thus improving the efficiency of valve needle disassembly.

[0017] 2. The valve needle disassembly fixture of this hot runner, through the set installation mechanism, and the set support rod and valve needle connector for easy installation and disassembly, can be disassembled and replaced in time when the support rod and valve needle connector are deformed after long-term use, thus ensuring the normal use of the support rod and valve needle connector. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the adjustment mechanism of this utility model.

[0021] Figure 4 This is a cross-sectional schematic diagram of the adjustment mechanism of this utility model.

[0022] Figure 5 This is a schematic diagram of the installation mechanism of this utility model.

[0023] In the diagram: 1-Support base; 2-Adjusting mechanism; 21-Fixing plate; 22-Horizontal plate; 23-Positioning plate; 24-Motor; 25-Support frame; 26-Cylinder; 27-Gear ring; 28-Vertical plate; 29-Straight gear; 3-Installation mechanism; 31-Valve needle connector; 32-Support component; 33-Arc plate; 34-Support rod; 35-Locking nut; 36-Limit rod; 4-Magnet. Detailed Implementation

[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1:

[0026] Combination Figure 1-4 A valve needle disassembly fixture for a flow channel includes a support base 1, with magnets 4 on both sides of the support base 1, an adjustment mechanism 2 on the top of the support base 1, and an installation mechanism 3 on the surface of the adjustment mechanism 2. The adjustment mechanism 2 includes a horizontal plate 22, which is located on the top of the support base 1. A gear ring 27 is rotatably connected inside the horizontal plate 22, and a spur gear 29 meshes with the surface of the gear ring 27. An output shaft is fixedly connected to the inner ring of the spur gear 29, and a motor 24 is fixedly connected to the bottom of the output shaft. A positioning plate 23 is fixedly connected to the bottom of the motor 24, and a vertical plate 28 is fixedly connected between the horizontal plate 22 and the positioning plate 23.

[0027] Furthermore, a cylinder 26 is fixedly connected to the top of the positioning plate 23, and a fixing plate 21 is fixedly connected to the top of the cylinder 26. A support frame 25 is fixedly connected between the fixing plate 21 and the support base 1. The fixing plate 21 and the support frame 25 cooperate to stably install the cylinder 26 on the support base 1, ensuring the structural stability of the cylinder 26 when it is working and avoiding the impact of shaking due to force on the disassembly accuracy.

[0028] Furthermore, four cylinders 26 are provided, all of the same specifications. The four identical cylinders 26 work synchronously, which can provide a balanced driving force, ensuring that the positioning plate 23 and related components are subjected to uniform force during the up and down movement, avoiding tilting or jamming, and improving the smoothness and reliability of valve needle disassembly.

[0029] Example 2:

[0030] See Figure 5 Furthermore, based on Embodiment 1, the installation mechanism 3 further includes a support member 32, which is fixedly connected to the inner wall of the toothed ring 27. A support rod 34 is inserted into the support member 32, and the bottom surface of the support rod 34 is provided with threads. A valve needle connector 31 is threadedly connected to the bottom of the support rod 34. The support member 32 provides an installation base for the support rod 34, and the support rod 34 is quickly positioned by means of insertion.

[0031] Furthermore, two valve needle connectors 31 are provided, and the two valve needle connectors 31 are symmetrically arranged in the toothed ring 27. The two symmetrically distributed valve needle connectors 31 can simultaneously disassemble the valve needles at two positions, improving work efficiency. In addition, the symmetrical structure can balance the force when the toothed ring 27 rotates, reducing shaking.

[0032] Furthermore, a limiting rod 36 is inserted into the limiting groove. The limiting rod 36 is fixedly connected to the top of the arc plate 33. The insertion and engagement of the limiting rod 36 with the limiting groove provides circumferential limiting for the support rod 34, preventing the support rod 34 from rotating due to force during operation and ensuring the accurate alignment of the valve needle connector 31 and the valve needle. The surface of the limiting rod 36 is threaded, and a locking nut 35 is threadedly connected to the surface of the limiting rod 36. The locking nut 35 is located on the top of the support member 32. The locking nut, through its threaded connection with the limiting rod 36, firmly fixes the support rod 34 to the support member 32, preventing it from loosening when moving up and down or disassembling the valve needle, and ensuring the stability of the device operation.

[0033] In actual operation, when this device is used, the support base 1 is first connected to the mold body by the magnet 4. Then, the support rod 34 is inserted into the inside of the support member 32. At this time, the limiting rod 36 is inserted into the corresponding limiting groove. Then, the locking nut 35 is threaded to the surface of the limiting rod 36 to realize the installation of the support rod 34. Then, the valve needle connector 31 is threaded to the bottom of the support rod 34 to realize the installation of the support rod 34 and the valve needle connector 31. By setting the support rod 34 and the valve needle connector 31 for easy installation and disassembly, when the support rod 34 and the valve needle connector 31 deform after long-term use, they can be disassembled and replaced in time, ensuring the normal use of the support rod 34 and the valve needle connector 31.

[0034] When it is necessary to disassemble the valve needle in the hot runner, the position of the valve needle can be used to start the motor 24. The motor 24 can drive the spur gear 29 and the gear ring 27 to rotate slowly, so that the valve needle connector 31 is aligned with the valve needle at the bottom. Then, the cylinder 26 is started, which drives the valve needle connector 31 to move downward, so that the valve needle connector 31 is connected to the valve needle in the hot runner plate. Then, the cylinder 26 is started again to move the valve needle connector 31 upward, so as to achieve the purpose of disassembling the valve needle.

[0035] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A valve needle disassembly fixture for a hot runner, comprising a support base (1), characterized in that, Magnets (4) are provided on both sides of the support base (1), and an adjustment mechanism (2) is provided on the top of the support base (1). An installation mechanism (3) is provided on the surface of the adjustment mechanism (2). The adjustment mechanism (2) includes a horizontal plate (22), which is located on the top of the support base (1). A toothed ring (27) is rotatably connected inside the horizontal plate (22). A flat gear (29) meshes on the surface of the toothed ring (27). An output shaft is fixedly connected to the inner ring of the flat gear (29). A motor (24) is fixedly connected to the bottom of the output shaft. A positioning plate (23) is fixedly connected to the bottom of the motor (24). A vertical plate (28) is fixedly connected between the horizontal plate (22) and the positioning plate (23).

2. The valve needle disassembly fixture for a hot runner according to claim 1, characterized in that, A cylinder (26) is fixedly connected to the top of the positioning plate (23), a fixing plate (21) is fixedly connected to the top of the cylinder (26), and a support frame (25) is fixedly connected between the fixing plate (21) and the support base (1).

3. The valve needle disassembly fixture for a hot runner according to claim 2, characterized in that, The number of cylinders (26) is four, and the four cylinders (26) are of the same specification.

4. The valve needle disassembly fixture for a hot runner according to claim 1, characterized in that, The installation mechanism (3) includes a support member (32), which is fixedly connected to the inner wall of the toothed ring (27). A support rod (34) is inserted into the support member (32). The bottom of the surface of the support rod (34) is provided with a thread, and a valve needle connector (31) is threaded to the bottom of the support rod (34).

5. The valve needle disassembly fixture for a hot runner according to claim 4, characterized in that, The valve needle connector (31) is provided in two quantities, and the two valve needle connectors (31) are symmetrically arranged in the toothed ring (27).

6. The valve needle disassembly fixture for a hot runner according to claim 4, characterized in that, An arc-shaped plate (33) is fixedly connected to the top of the surface of the support rod (34). A limiting groove is opened in the arc-shaped plate (33), and a limiting rod (36) is inserted into the limiting groove. The limiting rod (36) is fixedly connected to the top of the arc-shaped plate (33).

7. The valve needle disassembly fixture for a hot runner according to claim 6, characterized in that, The limiting rod (36) has a threaded surface, and a locking nut (35) is threadedly connected to the limiting rod (36). The locking nut (35) is located on the top of the support member (32).

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