A positioning guide column for injection mold

Abstract

The present invention belongs to the technical field of injection molds, and discloses an injection mold positioning guide column, comprising: a guide column shell, a positioning hole is opened inside the guide column shell, a buffer extrusion assembly is installed inside the guide column shell at the bottom end of the positioning hole, the buffer extrusion assembly includes a mounting seat installed on the bottom end of the inner wall of the guide column shell by threads, four gears are rotatably connected inside the mounting seat, one end face of the gear is meshingly connected with four vertical sawtooth bars, a mounting block is welded between the four vertical sawtooth bars, a spring telescopic rod is arranged at the bottom end of the mounting block, the collision and friction between the upper mold and the guide column shell can be reduced, the wear and damage of the equipment can be reduced, the service life of the equipment can be extended, and the maintenance cost can be reduced. Secondly, the tension relief can smoothly control the movement of the upper mold, avoid sudden impact force from causing damage or deformation to the equipment and the workpiece, and help improve the processing accuracy and product quality.

Description

Technical Field

[0001] The invention belongs to the technical field of injection molds, and in particular relates to a positioning guide column for an injection mold. Background Art

[0002] Injection mold generally refers to injection molding, which is also called injection molding. It is a molding method of injection and molding. The injection mold is composed of an upper mold and a lower mold. The upper mold and the lower mold need to use positioning guide pins in the process of closing the mold. The positioning guide pins are used to guide the upper and lower molds during the closing process.

[0003] Since the positioning guide pin has the function of guiding and positioning the upper mold, but the mold closing speed between the upper mold and the lower mold is relatively fast, it causes a direct collision between the positioning guide pin and the upper mold, which in turn causes wear at the fitting point between the positioning guide pin and the upper mold due to the collision, which can easily cause the positioning guide pin to position the upper mold inaccurately. Summary of the invention

[0004] The present invention aims at the problem that the positioning guide pin in the prior art has the function of guiding and positioning the upper die, but the mold closing speed between the upper die and the lower die is relatively fast, which causes a direct collision between the positioning guide pin and the upper die, and then causes the positioning guide pin and the upper die to wear due to the collision, which easily causes the positioning guide pin to position the upper die inaccurately. The present invention proposes the following technical solution:

[0005] A positioning guide column for an injection mold comprises: a guide column shell, a positioning hole is provided inside the guide column shell, a buffer extrusion assembly is installed inside the guide column shell at the bottom end of the positioning hole, the buffer extrusion assembly comprises a mounting seat installed on the bottom end of the inner wall of the guide column shell by threads, four gears are rotatably connected inside the mounting seat, one end face of the gear is meshingly connected to four vertical sawtooth bars, a mounting block is welded between the four vertical sawtooth bars, a spring telescopic rod is provided at the bottom end of the mounting block, the bottom end of the outer surface of the gear is meshingly connected to a horizontal sawtooth bar, and a buffer column is installed between the four vertical sawtooth bars and the top end of the mounting block.

[0006] Preferably, a rectangular rod is fixedly installed between the vertical sawtooth bar and the top of the mounting block, a screw rod is threadedly installed on the top of the rectangular rod, and the top of the screw rod is fixedly connected to the bottom of the buffer column.

[0007] Preferably, a guide groove is provided inside the mounting seat, and the horizontal sawtooth bar is slidably connected inside the guide groove. A positioning groove is provided in the middle of the top end of the mounting seat, and the vertical sawtooth bar and the mounting block are both slidably connected inside the positioning groove.

[0008] Preferably, the number of the horizontal sawtooth bars is set to four in total, and the outer sides of the horizontal sawtooth bars and the inner walls of the guide grooves fit each other.

[0009] Preferably, the buffer column is circular in shape, and the outer diameter of the buffer column is smaller than the inner diameter of the positioning hole.

[0010] Preferably, a placement hole is opened at the bottom end of the mounting seat, and a disassembly and replacement component is installed inside the placement hole. The disassembly and replacement component includes a fixing plug connected to the inside of the placement hole by threads, and the top end of the fixing plug and the bottom end of the spring telescopic rod are clamped and connected.

[0011] Preferably, the mounting seat has limit plates fixedly installed at both sides of the placement hole, the limit plates are slidably connected with round rods, the round rods are sleeved with rectangular frames on the outside and the rectangular frames are fixedly installed at the bottom end of the fixing plug.

[0012] Preferably, a limiting plate is welded to one end of the round rod, the limiting plate is slidably connected to the inside of the rectangular block, and a double-headed screw is connected inside the two rectangular blocks through threads.

[0013] Preferably, a limiting groove is provided on one end surface of the limiting plate, and the round rod is located inside the limiting groove.

[0014] The beneficial effects of the present invention are:

[0015] (1) It can reduce the collision and friction between the upper die and the guide column housing, reduce the wear and damage of the equipment, help extend the service life of the equipment, and reduce maintenance costs. Secondly, tension relief can smoothly control the movement of the upper die, avoid sudden impact force causing damage or deformation to the equipment and workpiece, and help improve processing accuracy and product quality;

[0016] (2) It can reduce the shaking or looseness between the guide pin housing and the lower die, ensuring a more solid and stable connection between the two, which helps to improve the working efficiency and accuracy of the equipment and reduce errors caused by instability. Secondly, the improvement of stability can extend the service life of the guide pin housing and the lower die, reduce wear caused by friction or vibration, and reduce maintenance costs;

[0017] (3) The spring telescopic rod can be easily disassembled and replaced, which changes the difficulty of disassembling and replacing the spring telescopic rod, thereby simplifying the maintenance and servicing process, saving maintenance time and labor costs, reducing the operating difficulty and labor intensity of operators, reducing the possibility of operating errors, improving work efficiency and safety, and reducing the risk of equipment damage, protecting the integrity and stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 What is shown is a structural schematic diagram of a positioning guide pin of an injection mold;

[0019] Figure 2 What is shown is a schematic diagram of the opening structure of the placement hole;

[0020] Figure 3 Shown is a cross-sectional view of the guide post housing;

[0021] Figure 4 Shown is a schematic diagram of the installation structure of the buffer extrusion assembly;

[0022] Figure 5 Shown is a cross-sectional view of a buffer extrusion assembly;

[0023] Figure 6 Shown is a schematic diagram of the structure of the disassembly and replacement components.

[0024] In the figure: 1. Guide column housing; 2. Positioning hole;

[0025] 3. Buffer extrusion assembly; 31. Mounting seat; 32. Gear; 33. Vertical sawtooth bar; 34. Mounting block; 35. Rectangular rod; 36. Screw rod; 37. Buffer column; 38. Horizontal sawtooth bar; 39. Spring telescopic rod; 310. Guide groove; 311. Positioning groove;

[0026] 4. Place the hole;

[0027] 5. Disassemble and replace components; 51. Fixing plug; 52. Rectangular frame; 53. Double-headed screw; 54. Rectangular block; 55. Round rod; 56. Limit plate; 57. Limit groove. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0029] Example 1

[0030] The present invention provides an injection mold positioning guide column, such as Figure 1-6 As shown, it includes: a guide column housing 1, a positioning hole 2 is opened inside the guide column housing 1, a buffer extrusion assembly 3 is installed at the bottom end of the positioning hole 2 inside the guide column housing 1, the buffer extrusion assembly 3 includes a mounting seat 31 installed on the bottom end of the inner wall of the guide column housing 1 through threads, four gears 32 are rotatably connected inside the mounting seat 31, one end surface of the gear 32 is meshed with four vertical sawtooth bars 33, a mounting block 34 is welded between the four vertical sawtooth bars 33, a spring telescopic rod 39 is arranged at the bottom end of the mounting block 34, a horizontal sawtooth bar 38 is meshed with the bottom end of the outer surface of the gear 32, and a buffer column 37 is installed between the four vertical sawtooth bars 33 and the top of the mounting block 34.

[0031] like Figure 3 , Figure 4 and Figure 5As shown, a rectangular rod 35 is fixedly installed between the vertical serrated bar 33 and the top of the mounting block 34, a screw rod 36 is threadedly installed on the top of the rectangular rod 35, and the top of the screw rod 36 and the bottom of the buffer column 37 are fixedly connected for the installation of the buffer column 37, and the height of the buffer column 37 can be adjusted, thereby changing the difficulty of adjusting the height of the buffer column 37.

[0032] As shown Figure 4 and Figure 5 As shown, a guide groove 310 is provided inside the mounting seat 31, and the horizontal sawtooth bar 38 is slidably connected to the inside of the guide groove 310. A positioning groove 311 is provided in the middle of the top of the mounting seat 31, and the vertical sawtooth bar 33 and the mounting block 34 are both slidably connected to the inside of the positioning groove 311, which is used to limit the vertical sawtooth bar 33, the mounting block 34 and the horizontal sawtooth bar 38 to prevent the vertical sawtooth bar 33, the mounting block 34 and the horizontal sawtooth bar 38 from deflecting. The number of horizontal sawtooth bars 38 is set to four, and the outer side of the horizontal sawtooth bar 38 and the inner wall of the guide groove 310 fit each other, which are used to fix the four sides of the guide column housing 1, thereby changing the difficulty of fixing the guide column housing 1. The buffer column 37 is circular in shape, and the outer diameter of the buffer column 37 is smaller than the inner diameter of the positioning hole 2, which is convenient for the installation of the buffer column 37, thereby changing the difficulty of installing the buffer column 37.

[0033] like Figure 2 and Figure 6 As shown, a placement hole 4 is opened at the bottom end of the mounting seat 31, and a disassembly and replacement component 5 is installed inside the placement hole 4. The disassembly and replacement component 5 includes a fixing plug 51 which is threadedly connected to the inside of the placement hole 4, and a clamping connection is formed between the top end of the fixing plug 51 and the bottom end of the spring telescopic rod 39, which is used for the installation of the spring telescopic rod 39 and facilitates the disassembly and replacement of the spring telescopic rod 39, thereby reducing the difficulty of disassembly and replacement of the spring telescopic rod 39.

[0034] like Figure 2 and Figure 6 As shown, a limiting plate 56 is fixedly installed inside the mounting seat 31 at both sides of the placement hole 4, a round rod 55 is slidably connected inside the limiting plate 56, a rectangular frame 52 is sleeved on the outside of the round rod 55 and the rectangular frame 52 is fixedly installed on the bottom end of the fixing plug 51, a limiting plate 56 is welded at one end of the round rod 55, the limiting plate 56 is slidably connected inside the rectangular block 54, and a double-headed screw 53 is threadedly connected inside the two rectangular blocks 54 for driving the movement of the round rod 55 so that the round rod 55 and the limiting plate 56 can be connected, thereby changing the connection difficulty between the round rod 55 and the limiting plate 56, a limiting groove 57 is provided on one end face of the limiting plate 56, the round rod 55 is located inside the limiting groove 57, which can be used to limit the round rod 55, and can limit the round rod 55 of different depths, thereby increasing the limiting range.

[0035] Working principle: During the actual use of the device, the personnel rotate the mounting seat 31 so that the mounting seat 31 moves along the inside of the guide column housing 1, and at the same time rotate the buffer column 37. When the buffer column 37 rotates, it drives the screw 36 to move inside the rectangular rod 35. Then, the bottom end of the guide column housing 1 and the mounting seat 31 are installed inside the lower mold. At this time, when the upper mold and the lower mold are closed, the positioning pin inside the upper mold moves along the inside of the positioning hole 2, thereby driving the buffer column 37 to move downward. When the buffer column 37 moves downward, it drives the rectangular rod 35 to move through the screw 36. When the rectangular rod 35 moves, it drives the mounting block 34 The vertical sawtooth bar 33 moves synchronously. When the vertical sawtooth bar 33 moves, the gear 32 is driven to rotate synchronously. When the gear 32 rotates, the horizontal sawtooth bar 38 is driven to enter the lower die, thereby increasing the stability between the guide column housing 1 and the lower die, reducing the shaking or loosening between the guide column housing 1 and the lower die, ensuring that the connection between the two is more firm and stable, which helps to improve the working efficiency and accuracy of the equipment and reduce the error caused by instability. Secondly, the improvement of stability can extend the service life of the guide column housing 1 and the lower die, reduce the wear caused by friction or vibration, and reduce the maintenance cost;

[0036] Furthermore, since the spring telescopic rod 39 is compressed when the mounting block 34 moves, the tension of the spring telescopic rod 39 during compression relieves the impact force between the upper die and the guide column housing 1, which can reduce the collision and friction between the upper die and the guide column housing, reduce the wear and damage of the equipment, help extend the service life of the equipment, and reduce maintenance costs. Secondly, the tension relief can smoothly control the movement of the upper die, avoid sudden impact force causing damage or deformation to the equipment and workpiece, and help improve processing accuracy and product quality.

[0037] Finally, the personnel rotate the double-headed screw 53, and the double-headed screw 53 drives the rectangular block 54 to move when rotating. When the rectangular block 54 moves, it drives the round rod 55 to move along the inside of the limit plate 56 and separate from it. Then the fixing plug 51 is rotated. When the fixing plug 51 rotates, it moves along the inside of the mounting seat 31. When the fixing plug 51 moves, it drives the spring telescopic rod 39 to move, so that the fixing plug 51 and the mounting seat 31 are separated. Then the personnel disassemble the spring telescopic rod 39, which can facilitate the disassembly and replacement of the spring telescopic rod 39, and change the difficulty of disassembly and replacement of the spring telescopic rod 39, so as to simplify the maintenance and maintenance process, save maintenance time and labor costs, reduce the operating difficulty and labor intensity of the operator, reduce the possibility of operating errors, improve work efficiency and safety, and reduce the risk of equipment damage, protect the integrity and stability of the equipment;

[0038] When the double-headed screw 53 is rotated and the round rod 55 is driven to enter the limiting plate 56, the fixing plug 51 can be limited at this time, so that the fixing plug 51 cannot rotate, thereby achieving the purpose of increasing the stability of the fixing plug 51 and preventing the fixing plug 51 from self-rotating.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A positioning guide column for an injection mold, characterized in that: include: A guide column housing (1), wherein a positioning hole (2) is provided inside the guide column housing (1), wherein a buffer extrusion assembly (3) is installed inside the guide column housing (1) at the bottom end of the positioning hole (2), wherein the buffer extrusion assembly (3) comprises a mounting seat (31) mounted on the bottom end of the inner wall of the guide column housing (1) through a thread, wherein four gears (32) are rotatably connected inside the mounting seat (31), wherein one end surface of the gear (32) is meshingly connected to four vertical sawtooth bars (33), wherein a mounting block (34) is welded between the four vertical sawtooth bars (33), wherein a spring telescopic rod (39) is provided at the bottom end of the mounting block (34), and wherein the bottom end of the outer surface of the gear (32) is meshingly connected to a horizontal sawtooth bar (38 ), a buffer column (37) is installed between the top of the four vertical sawtooth bars (33) and the mounting block (34), a rectangular rod (35) is fixedly installed between the vertical sawtooth bars (33) and the top of the mounting block (34), a screw rod (36) is installed on the top of the rectangular rod (35) through a thread, the top of the screw rod (36) and the bottom of the buffer column (37) are fixedly connected, a guide groove (310) is opened inside the mounting seat (31), the horizontal sawtooth bar (38) is slidably connected inside the guide groove (310), a positioning groove (311) is opened in the middle of the top of the mounting seat (31), and the vertical sawtooth bars (33) and the mounting block (34) are both slidably connected inside the positioning groove (311).

2. The injection mold positioning guide column according to claim 1, characterized in that: The number of the horizontal sawtooth bars (38) is set to four in total, and the outer sides of the horizontal sawtooth bars (38) and the inner walls of the guide grooves (310) fit each other.

3. The injection mold positioning guide column according to claim 1, characterized in that: The buffer column (37) is circular in shape, and the outer diameter of the buffer column (37) is smaller than the inner diameter of the positioning hole (2).

4. The injection mold positioning guide column according to claim 1, characterized in that: A placement hole (4) is provided at the bottom end of the mounting seat (31), a disassembly and replacement assembly (5) is installed inside the placement hole (4), the disassembly and replacement assembly (5) comprises a fixing plug (51) connected to the inside of the placement hole (4) by means of threads, and a top end of the fixing plug (51) is snap-connected to a bottom end of the spring telescopic rod (39).

5. The injection mold positioning guide column according to claim 4, characterized in that: Limiting plates (56) are fixedly installed inside the mounting seat (31) at positions on both sides of the placement hole (4), and a round rod (55) is slidably connected inside the limiting plate (56). A rectangular frame (52) is sleeved on the outside of the round rod (55), and the rectangular frame (52) is fixedly installed on the bottom end of the fixing plug (51).

6. The injection mold positioning guide column according to claim 5, characterized in that: A limiting plate (56) is welded to one end of the round rod (55), and the limiting plate (56) is slidably connected to the inside of the rectangular block (54). A double-headed screw rod (53) is threadedly connected to the inside of the two rectangular blocks (54).

7. The injection mold positioning guide column according to claim 6, characterized in that: A limiting groove (57) is provided on one end surface of the limiting plate (56), and the round rod (55) is located inside the limiting groove (57).

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