An automatic deviation-correcting device for injection molds

Abstract

The present application relates to an automatic correction device for injection molds, and relates to the technical field of injection molds. The device comprises a base, the top of which is rotatably connected to a clamping device, the clamping device being used to clamp the injection mold, the clamping device being provided with a positioning photoelectric gate on the side wall close to the injection molding machine, the positioning photoelectric gate being provided with four, the positioning photoelectric gates being provided at the four corners of the clamping device, the positioning photoelectric gates being triggered by a positioning light source provided on the injection molding device, the clamping device being provided with a driving device on the side away from the injection molding device, the driving device being used to drive the clamping device to rotate. The present application reduces the possibility of reduced injection efficiency due to tilting of the injection mold, and improves the product quality of the injection mold.

Description

Technical Field

[0001] The present application relates to the field of injection molds, and in particular to an automatic deviation-correcting device for injection molds. Background Art

[0002] Injection molds are divided into two types according to molding characteristics: thermosetting plastic molds, automotive molds, and thermoplastic plastic molds; according to molding processes, they are divided into transfer molds, blow molds, casting molds, thermoforming molds, hot pressing molds (compression molds), injection molds, etc. Among them, hot pressing molds can be divided into three types according to overflow, semi-overflow, and non-overflow; injection molds can be divided into two types according to the pouring system: cold runner molds and hot runner molds; according to the loading and unloading methods, they can be divided into two types: mobile and fixed.

[0003] While mold structure can vary widely depending on the type and properties of plastic, the shape and structure of the product, and the type of injection molding machine, the basic structure remains the same. A mold primarily consists of a gating system, a temperature control system, molding components, and structural parts. The gating system and molding components are the most complex and variable parts of the mold, varying with the plastic and product. These components require the highest machining finish and precision.

[0004] During the injection molding process, if the injection mold is offset, it is easy to cause the connection between the injection molding device and the injection mold interface to be loose, resulting in poor quality of the injection molded product, so it needs to be improved. Summary of the Invention

[0005] In order to improve the problem in the related art that when the injection mold is being injected, if the injection mold is offset, it is easy to cause the connection between the injection molding device and the injection mold interface to be loose, resulting in poor quality of the injection molded product, the present application provides an automatic correction device for the injection mold.

[0006] The present application provides an automatic correction device for injection molds, which adopts the following technical solutions:

[0007] An automatic correction device for an injection mold comprises a base, the top of the base being rotatably connected to a clamping device, the clamping device being used to clamp the injection mold, a positioning photoelectric gate being provided on the side wall of the clamping device close to the injection molding device, four positioning photoelectric gates being provided, the positioning photoelectric gates being provided at the four corners of the clamping device, the positioning photoelectric gates being triggered by a positioning light source, the positioning light source being provided on the injection molding device, a driving device being provided on the side of the clamping device away from the injection molding device, the driving device being used to drive the clamping device to rotate.

[0008] By adopting the above-mentioned technical solution, when the automatic correction device of the injection mold in the present application is in use, if the injection mold produces a position offset, the positioning light source and the positioning photoelectric gate on the injection molding device will be tilted. At this time, the driving device will drive the clamping device to rotate until the positioning photoelectric gate receives the input of the positioning light source again. At this time, the correction of the injection mold is completed, which reduces the possibility of reduced injection efficiency due to the tilt of the injection mold and improves the product quality of the injection mold.

[0009] Optionally, the clamping device includes a steering rod, a clamping cross rod and a clamping vertical rod, the steering rod is rotatably connected to the base, the clamping cross rod is arranged at the end of the steering rod away from the base, the clamping vertical rod is arranged on the side of the clamping cross rod away from the steering rod, and a pair of clamping vertical rods are provided, an abutment hole is opened on the side wall of one of the clamping vertical rods, an abutment rod is inserted into the inner thread of the abutment hole, and the end wall of the abutment rod is fitted with the injection mold.

[0010] By adopting the above technical solution, when the operator needs to fix injection molds of different sizes, the injection mold can be set between a pair of clamping vertical rods, and then the abutment rod can be rotated so that the end wall of the abutment rod abuts against the injection mold, thereby completing the clamping of the injection mold and improving the convenience in clamping the injection mold.

[0011] Optionally, a sliding groove is provided on the side wall of the clamping cross bar close to the clamping vertical bar, a sliding block is slidably inserted in the sliding groove, one of the clamping vertical bars is arranged on the side wall of the sliding block, a first fixing groove is provided on the side wall of the clamping cross bar, a second fixing hole is provided through the side wall of the sliding block, and a fixing rod is inserted into both the first fixing groove and the second fixing hole.

[0012] By adopting the above technical solution, both ends of the fixing rod are inserted into the first fixing groove to limit the sliding groove in the sliding groove, thereby increasing the stability of the sliding block when sliding in the sliding groove, and further increasing the stability when clamping the injection mold.

[0013] Optionally, a clamping piece is provided at one end of the fixing rod, and a clamping nut is threadedly connected to the other end, the clamping piece is fitted against the side wall of the clamping cross bar, and the clamping nut is fitted against the side wall of the clamping cross bar.

[0014] By adopting the above technical solution, the operator can rotate the clamping nut to a position where the clamping nut is in contact with the side wall of the clamping cross bar, thereby generating friction between the clamping nut, the clamping piece and the side wall of the clamping cross bar to limit the position of the sliding block in the sliding groove.

[0015] Optionally, the driving device includes a driving bracket, a driving cylinder and a driving rod, the driving bracket is arranged on the side of the clamping device away from the injection molding device, the driving cylinder is arranged on the driving bracket, the driving rod is arranged at the output end of the driving cylinder, and the end of the driving rod away from the driving cylinder is rotatably connected to the clamping device.

[0016] By adopting the above technical solution, if the injection mold produces a position offset, the positioning light source and the positioning photoelectric gate on the injection molding device will be tilted. At this time, the driving cylinder will drive the driving rod until the positioning photoelectric gate receives the input of the positioning light source again. At this time, the injection mold correction is completed, reducing the possibility of reduced injection efficiency due to the tilt of the injection mold.

[0017] Optionally, a rotating groove is provided on the side wall of the clamping device, a rotating ball head is inserted into the gap in the rotating groove, the width of the rotating groove is smaller than the diameter of the rotating ball head, and the rotating ball head is arranged at the end of the driving rod away from the driving cylinder.

[0018] By adopting the above technical solution, when the injection mold has a position offset and the driving device is required to drive the clamping cross bar and the clamping vertical bar to rotate, as the position of the clamping cross bar and the clamping vertical bar changes, the rotating ball head can move in the rotating groove, reducing the possibility of damage to the clamping cross bar and the clamping vertical bar during adjustment.

[0019] Optionally, there are several driving cylinders and driving rods, and a limiting groove is provided on the side wall of the clamping device, a limiting ball head is inserted into the limiting groove, the limiting groove and the limiting ball head are adapted to be arranged, and the limiting ball head is arranged at the end of the driving rod away from the driving cylinder.

[0020] By adopting the above technical solution, when the injection mold has a position offset and the driving device is required to drive the clamping cross bar and the clamping vertical bar to rotate, as the position of the clamping cross bar and the clamping vertical bar changes, the rotating ball head can move in the rotating groove. At this time, the limiting ball head is inserted in the limiting groove and rotates. The structure of the adaptive arrangement of the limiting ball head and the limiting groove reduces the possibility of the clamping cross bar and the clamping vertical bar falling off, and improves the stability of the system.

[0021] Optionally, the driving cylinder is electrically connected to the positioning photoelectric gate.

[0022] By adopting the above technical solution, if the injection mold produces a position offset, the positioning light source and the positioning photoelectric gate on the injection molding device will be tilted. At this time, the driving cylinder will drive the driving rod to make the limiting ball head rotate in the limiting groove. At the same time, the steering ball head rotates in the steering groove until the positioning photoelectric gate receives the input of the positioning light source again, thereby improving the automation of the system.

[0023] Optionally, a pair of limiting ball heads are provided, and the pair of limiting ball heads are respectively provided on a pair of driving rods arranged along the vertical direction, and a pair of rotating ball heads are provided, and the pair of rotating ball heads are respectively provided on a pair of driving rods arranged along the vertical direction.

[0024] By adopting the above technical solution, the rotating ball head can rotate in the rotating groove and slide in the rotating groove at the same time. Therefore, by changing the position of the rotating ball head in the rotating groove, the direction of the clamping horizontal bar and the clamping vertical bar can be adjusted to complete automatic correction.

[0025] In summary, this application has at least one of the following beneficial effects:

[0026] 1. When the automatic correction device of the injection mold in the present application is in use, if the injection mold has a position offset, the positioning light source and the positioning photoelectric gate on the injection molding device will be tilted. At this time, the driving device will drive the clamping device to rotate until the positioning photoelectric gate receives the input of the positioning light source again. At this time, the correction of the injection mold is completed, which reduces the possibility of reduced injection efficiency due to the tilt of the injection mold and improves the product quality of the injection mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of an embodiment of the present application;

[0028] Figure 2 This is a structural diagram illustrating the connection between the clamping horizontal rod and the clamping vertical rod in an embodiment of the present application;

[0029] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0030] Figure 4 This is a structural diagram illustrating the connection between the limiting ball head and the limiting groove in an embodiment of the present application;

[0031] In the figure: 1. Base; 11. Clamping device; 12. Positioning photoelectric gate; 13. Injection molding device; 14. Driving device; 2. Steering rod; 21. Clamping horizontal rod; 22. Clamping vertical rod; 23. Abutment hole; 24. Abutment rod; 3. Sliding groove; 31. Sliding block; 32. Fixed rod; 321. First fixed groove; 322. Second fixed hole; 41. Clamping piece; 42. Clamping nut; 5. Driving bracket; 51. Driving cylinder; 52. Driving rod; 6. Rotating groove; 61. Rotating ball head; 62. Limiting ball head; 63. Limiting groove. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The embodiment of the present application discloses an automatic deviation correction device for injection molds. Figure 1 An automatic correction device for injection molds is used in an injection molding system. The injection molding system includes an injection molding device 13. The injection molding device 13 melts plastic raw material and then injects it into an injection mold. The molten plastic raw material is condensed and formed in the injection mold. After demolding, the production is completed. The automatic correction device for injection molds includes a base 1, which is arranged on one side of the output end of the injection molding device 13.

[0034] Reference Figure 2 The top of the base 1 is rotatably connected to a steering rod 2 via a rotating shaft. A clamping crossbar 21 is welded and fixed to the end of the steering rod 2 away from the base 1. The clamping crossbar 21 is arranged perpendicular to the steering rod 2. A sliding groove 3 is formed on the side wall of the clamping crossbar 21 away from the steering rod 2. The sliding groove 3 is extended along the length of the clamping crossbar 21. A clamping vertical rod 22 is welded and fixed to the position near the end wall of the side wall of the clamping crossbar 21 away from the steering rod 2. The clamping vertical rod 22 is arranged on one side of the sliding groove 3. The clamping vertical rod 22 is a square rod and is arranged perpendicular to the clamping crossbar 21. A sliding block 31 is inserted in the sliding groove 3, and the sliding block 31 is slidably connected to the sliding groove 3. A first fixing groove 321 is opened on the side wall of the clamping cross bar 21 along the thickness direction of the clamping cross bar 21. The first fixing groove 321 is a rectangular groove. A second fixing hole 322 is opened on the side wall of the sliding block 31 along the thickness direction of the sliding block 31. A fixing rod 32 is inserted in the second fixing hole 322, and the fixing rod 32 is adapted to the second fixing hole 322. Both ends of the fixing rod 32 are inserted in the first fixing groove 321 to limit the sliding groove 3 in the sliding groove 3.

[0035] Reference Figure 3 and Figure 4A clamping piece 41 is integrally formed at one end of the fixing rod 32. The clamping piece 41 is a circular piece with a diameter greater than the width of the first fixing slot 321. Therefore, when the fixing rod 32 is inserted into the first fixing slot 321 and the second fixing hole 322, the clamping piece 41 can abut against the side wall of the clamping cross bar 21, thereby limiting the position of the fixing rod 32 near the clamping piece 41. The end of the fixing rod 32 away from the clamping piece 41 is a threaded structure, and a clamping nut 42 is sleeved on the end of the fixing rod 32 away from the clamping piece 41. The width of the clamping nut 42 is greater than the width of the first fixing slot. The operator can rotate the clamping nut 42 until it is in contact with the side wall of the clamping cross bar 21. The friction force generated by the abutment between the clamping nut 42 and the side wall of the clamping cross bar 21 limits the position of the sliding block 31 within the sliding slot 3.

[0036] Reference Figure 2 Another clamping vertical rod 22 is welded and fixed to the side wall of the sliding block 31, and the pair of clamping vertical rods 22 are arranged in parallel, and the injection mold is installed between the pair of clamping vertical rods 22. Abutment holes 23 are opened on the side walls of the clamping vertical rods 22 on the sliding block 31 along the thickness direction of the clamping vertical rods 22. The abutment holes 23 are threaded holes, and an abutment rod 24 is inserted into the abutment holes 23 through the internal threads. When the injection mold is placed between the pair of clamping vertical rods 22, the abutment rod 24 can be rotated to fit the side walls of the injection mold, thereby completing the fixed installation of the injection mold.

[0037] Reference Figure 4 A drive device 14 is provided on the side of the clamping crossbar 21 away from the injection molding device 13. The drive device 14 drives the steering rod 2 to steer via a control frame, mounting the injection mold between the control frame and a pair of clamping vertical rods. This automatically corrects the deviation of the injection mold through the control frame. The drive device 14 includes a drive bracket 5, a drive cylinder 51, and a drive rod 52. The drive bracket 5 is disposed on the side of the drive crossbar away from the injection molding device 13 and is vertically arranged. The driving cylinder 51 is installed on the driving bracket 5, and there are four driving cylinders 51. The four driving cylinders 51 are arranged in a square shape. A driving rod 52 is installed on the output end of the driving cylinder 51. A pair of driving rods 52 in the same vertical direction are welded and fixed with a rotating ball head 61 at one end away from the driving cylinder 51. A rotating groove 6 is opened at a position corresponding to the rotating ball head 61 on the control frame, and the rotating ball head 61 is inserted into the rotating groove 6 with a gap. The rotating ball head 61 can rotate in the rotating groove 6 while sliding in the rotating groove 6. Therefore, by changing the position of the rotating ball head 61 in the rotating groove 6, the direction of the clamping cross bar 21 and the clamping vertical bar 22 can be adjusted to complete automatic correction.

[0038] Reference Figure 2 and Figure 4 Another pair of drive rods 52, positioned in the same vertical direction, have a fixed stopper ball 62 welded to one end away from the drive cylinder 51. A stopper slot 63 is provided on the control frame at a position corresponding to the stopper ball 62, and the stopper ball 62 fits snugly within the stopper slot 63. Therefore, when the drive cylinder 51 rotates the stopper ball 62, due to the fit between the stopper ball 62 and the stopper slot 63, only the angle between the stopper ball 62 and the stopper slot 63 changes until the injection mold is adjusted to the correct orientation. Four positioning photoelectric gates 12 are mounted on the sidewall of the clamping vertical rod 22, away from the stopper slot 63. These four positioning photoelectric gates 12 correspond to a pair of stopper slots 63 and a pair of rotation slots 6, and are electrically connected to the drive cylinder 51. The operator can correct the position of the injection mold by installing a positioning light source on the injection molding device 13 and triggering the positioning photoelectric gates 12 with the positioning light source.

[0039] The implementation principle of an automatic correction device for an injection mold in an embodiment of the present application is as follows: when the automatic correction device for an injection mold in the present application is in use, if the injection mold has a position offset, the positioning light source on the injection molding device 13 and the positioning photoelectric gate 12 are tilted. At this time, the driving cylinder 51 will drive the driving rod 52 to make the limiting ball head 62 rotate in the limiting groove 63. At the same time, the steering ball head rotates in the steering groove until the positioning photoelectric gate 12 receives the input of the positioning light source again. At this time, the correction of the injection mold is completed, reducing the possibility of reduced injection efficiency due to the tilt of the injection mold.

[0040] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An automatic deviation-correcting device for an injection mold, characterized in that: The invention comprises a base (1), wherein the top of the base (1) is rotatably connected to a clamping device (11), wherein the clamping device (11) is used to clamp the injection mold, and a positioning photoelectric door (12) is provided on the side wall of the clamping device (11) close to the injection molding machine, wherein four positioning photoelectric doors (12) are provided, and the positioning photoelectric doors (12) are provided at the four corners of the clamping device (11), and the positioning photoelectric doors (12) are triggered by a positioning light source, and the positioning light source is provided on the injection molding device (13); and a driving device (14) is provided on the side of the clamping device (11) away from the injection molding device (13); The clamping device (11) comprises a steering rod (2), a clamping cross bar (21) and a clamping vertical bar (22); the steering rod (2) is rotatably connected to the base (1); the clamping cross bar (21) is arranged at one end of the steering rod (2) away from the base (1); the clamping vertical bar (22) is arranged at a side of the clamping cross bar (21) away from the steering rod (2); a pair of clamping vertical bars (22) are provided, and an abutting hole (23) is provided on the side wall of one of the clamping vertical bars (22); an abutting rod (24) is inserted into the abutting hole (23) through an internal thread; and an end wall of the abutting rod (24) is arranged to fit the injection mold; The driving device (14) drives the steering rod (2) to steer via the control frame, and the injection mold is installed between the control frame and a pair of clamping vertical rods (22), thereby completing automatic deviation correction of the injection mold via the control frame; The driving device (14) comprises a driving bracket (5), a driving cylinder (51) and a driving rod (52); the driving bracket (5) is arranged on a side of the clamping device (11) away from the injection molding device (13), and the driving bracket (5) is arranged vertically; the driving cylinder (51) is arranged on the driving bracket (5), and four driving cylinders (51) are provided, and the four driving cylinders (51) are arranged in a square shape; the driving rod (52) is arranged at the output end of the driving cylinder (51); A pair of driving rods (52) in the same vertical direction are welded and fixed with a rotating ball head (61) at one end away from the driving cylinder (51), and a rotating groove (6) is provided on the control frame at a position corresponding to the rotating ball head (61), and the rotating ball head (61) is inserted into the rotating groove (6) with a gap, so that the rotating ball head (61) can rotate in the rotating groove (6) and can also slide in the rotating groove (6); Another pair of driving rods (52) in the same vertical direction are welded and fixed with a limiting ball head (62) at one end away from the driving cylinder (51); a limiting groove (63) is provided at a position corresponding to the limiting ball head (62) on the control frame, and the limiting ball head (62) is adapted to be inserted into the limiting groove (63).

2. The automatic deviation-correcting device for injection molds according to claim 1, characterized in that: A sliding groove (3) is provided on the side wall of the clamping crossbar (21) close to the clamping vertical bar (22), a sliding block (31) is slidably inserted in the sliding groove (3), one of the clamping vertical bars (22) is arranged on the side wall of the sliding block (31), a first fixing groove (321) is provided on the side wall of the clamping crossbar (21), a second fixing hole (322) is provided through the side wall of the sliding block (31), and a fixing rod (32) is inserted into both the first fixing groove (321) and the second fixing hole (322).

3. The automatic deviation-correcting device for injection molds according to claim 2, characterized in that: One end of the fixing rod (32) is provided with a clamping piece (41), and the other end is threadedly connected with a clamping nut (42), the clamping piece (41) is arranged in abutment with the side wall of the clamping cross bar (21), and the clamping nut (42) is arranged in abutment with the side wall of the clamping cross bar (21).

4. The automatic deviation-correcting device for injection molds according to claim 1, characterized in that: The driving cylinder (51) is electrically connected to the positioning photoelectric gate (12).

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