In-mold rapid hot cutting mechanism

Abstract

The utility model provides an in-mold rapid hot cutting mechanism which comprises a left mold, a right mold is arranged on the corresponding side of the left mold, a limiting assembly used for limiting the left mold is installed on the outer wall of the right mold, and a cutting mechanism used for cutting materials is installed on the inner side of the left mold. The in-mold hot cutting mechanism relates to the technical field of in-mold hot cutting mechanisms, and compared with a comparison file, the in-mold hot cutting mechanism has the advantages that the cutting surface of the cutter can be automatically replaced through the cutting mechanism, so that each surface of the cutter can be uniformly abraded, and the problem of non-uniform abrasion caused by long-time use of the same surface for cutting is avoided; in addition, the cutting face is automatically replaced through the cutter replacing assembly, and therefore the time for halting to replace or adjust the cutter due to abrasion of the cutter can be shortened. Therefore, the production efficiency is improved, and the risk of production interruption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of in-mold hot cutting mechanisms, in particular to an in-mold rapid hot cutting mechanism. Background Art

[0002] Injection mold processing is to add plastic into the mold, and then melt the plastic inside the mold by heating and inject it into the injection mold, so that the molten plastic adheres to the entire surface of the mold cavity, forming it into the required shape, and cooling it to shape it. The in-mold hot cutting mechanism is a technology that realizes the thermal separation of the product and the nozzle when the product is not ejected from the mold. The in-mold hot cutting mechanism can improve the flatness of the plastic shearing edge and reduce labor intensity;

[0003] The reference patent name is: A hot cutting mechanism in an injection mold (authorization announcement number: CN 213353393U). The upper end of the lower mold described in the comparative document is provided with a limited hole groove, a mold cavity is provided on one side of the limited hole groove, a molding groove is provided inside the mold cavity, a gate is provided on one side of the molding groove, a limited stopper is installed on the upper end of the gate, a cutting knife groove is provided inside the limited stopper, an upper mold is installed above the lower mold, a limited slide groove is provided inside the upper mold, a hydraulic cylinder is installed on the upper end of the limited slide groove, a telescopic rod is installed on the lower end of the hydraulic cylinder, a fixed seat is installed on the lower end of the telescopic rod, a cutter mounting seat is installed below the fixed seat, a cutter mounting groove is provided inside the cutter mounting seat, and a cutter is installed inside the cutter mounting groove;

[0004] The cutter in the existing injection mold hot cutting mechanism will wear unevenly when working due to long-term use of the same surface for cutting. The worn part may become sharper, while the unworn part may remain the same or wear less. This uneven wear will affect the cutting effect and accuracy of the cutter. In addition, long-term use of the same surface for cutting will accelerate the wear of the cutter, thereby shortening its service life. This may require more frequent replacement of the cutter, increasing production costs and maintenance work.

[0005] Therefore, it is necessary to provide a new in-mold rapid hot cutting mechanism to solve the above-mentioned technical problems. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides an in-mold rapid hot cutting mechanism.

[0007] The utility model provides an in-mold rapid hot cutting mechanism, comprising a left mold, a right mold is arranged on the side corresponding to the left mold, a limiting component for limiting the left mold is installed on the outer wall of the right mold, and a cutting mechanism for cutting the material is installed on the inner side of the left mold, and the cutting mechanism comprises:

[0008] The cutting assembly is installed on the inner side of the left mold, and includes a tool changing groove provided on the inner wall of the left mold, a fixed seat is fixed on the inner side of the tool changing groove, a tool changing seat is slidably connected to the inner side of the fixed seat, a rotating rod is rotatably connected to the inner side of the tool changing seat through a bearing, a clamping assembly for clamping a cutting knife is installed on one end of the rotating rod, and a tool changing assembly for replacing the cutting knife is installed on the other end of the rotating rod;

[0009] The driving assembly is installed on the inner side of the tool changing slot and is used to drive the tool changing seat to slide.

[0010] Preferably, the limiting assembly comprises limiting grooves symmetrically opened on the outer wall of the right mold, and limiting columns are symmetrically fixed on one side of the left mold close to the right mold, and the limiting columns are slidably connected to the limiting grooves.

[0011] Preferably, the clamping assembly comprises a clamping block fixed to one end of the rotating rod, a latch is inserted into the top of the clamping block, and the latch is engaged with the outer wall of the cutter.

[0012] Preferably, the tool changing assembly includes a gear fixed to an end of the rotating rod away from the clamping block, a groove is provided at the top of the fixed seat, a rack is fixed on the inner side of the groove, the rack is meshed with the gear, a pushing bar is slidably connected to the inner side of the tool changing seat, a sliding groove is provided at the top of the tool changing seat, a sliding rod is fixed on the top of the pushing rod, the upper outer wall of the sliding rod is slidably connected to the inner side of the sliding groove, a first connecting strip is fixed to one end of the fixed seat, and a second connecting strip is fixed to the end of the fixed seat close to the rack, and the inner sides of the first connecting strip and the second connecting strip are slidably connected to the upper outer wall of the sliding rod.

[0013] Preferably, the driving assembly comprises a driving cylinder fixed on the inner side of the tool changing slot, and a moving end of the driving cylinder is fixed to the outer wall of the tool changing seat.

[0014] Preferably, a mold cavity is formed on a side of the right mold corresponding to the left mold, and an injection groove is formed on the top of the right mold, and the injection groove extends to the inside of the mold cavity.

[0015] Compared with the related art, the in-mold rapid hot cutting mechanism provided by the utility model has the following advantages:

[0016] Beneficial effects:

[0017] 1. Long-term use of the same surface for cutting will cause uneven wear of the cutter. The worn part may become sharper, while the unworn part may remain the same or wear less. This uneven wear will affect the cutting effect and accuracy of the cutter. The automatic replacement of the cutting surface of the cutter by the cutting mechanism can ensure that all surfaces of the cutter can be evenly worn, avoiding the problem of uneven wear caused by long-term use of the same surface for cutting, which can extend the service life of the cutter.

[0018] 2. In addition, long-term use of the same surface for cutting will accelerate the wear of the cutter, thereby shortening its service life. This may require more frequent replacement of the cutter, increasing production costs and maintenance work, while the automatic replacement of the cutting surface by the tool changer can reduce the time required to stop the machine to replace or adjust the cutter due to cutter wear, which helps to improve production efficiency and reduce the risk of production interruption. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0021] Figure 3 It is a schematic diagram of the mold cavity structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the cutting mechanism structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the rotating rod structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the tool changing assembly of the utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the driving cylinder of the utility model.

[0026] Numbers in the figure: 1. left mold; 2. right mold; 3. limit assembly; 101. limit groove; 102. limit column; 4. cutting mechanism; 5. cutting assembly; 201. tool changing groove; 202. fixed seat; 203. tool changing seat; 204. rotating rod; 6. clamping assembly; 301. clamping block; 302. latch; 7. tool changing assembly; 401. gear; 402. groove; 403. rack; 404. push bar; 405. sliding groove; 406. sliding rod; 407. first connecting bar; 408. second connecting bar; 8. driving assembly; 501. driving cylinder; 9. mold cavity; 10. injection slot; 11. cutting knife. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0029] See also Figures 1 to 7 The utility model provides an in-mold rapid hot cutting mechanism, comprising a left mold 1, a right mold 2 is arranged on the side corresponding to the left mold 1, a limiting component 3 for limiting the left mold 1 is installed on the outer wall of the right mold 2, and a cutting mechanism 4 for cutting off the material is installed on the inner side of the left mold 1, and the cutting mechanism 4 includes:

[0030] The cutting assembly 5 is installed on the inner side of the left mold 1, and includes a tool changing groove 201 provided on the inner wall of the left mold 1, a fixing seat 202 is fixed on the inner side of the tool changing groove 201, a tool changing seat 203 is slidably connected to the inner side of the fixing seat 202, a rotating rod 204 is rotatably connected to the inner side of the tool changing seat 203 through a bearing, a clamping assembly 6 for clamping the cutter 11 is installed on one end of the rotating rod 204, and a tool changing assembly 7 for replacing the cutter 11 is installed on the other end of the rotating rod 204;

[0031] The driving assembly 8 is installed on the inner side of the tool changing slot 201 and is used to drive the tool changing seat 203 to slide.

[0032] In this embodiment, the limiting assembly 3 includes a limiting groove 101 symmetrically opened on the outer wall of the right mold 2 , and a limiting column 102 is symmetrically fixed on one side of the left mold 1 close to the right mold 2 , and the limiting column 102 is slidably connected to the limiting groove 101 .

[0033] In this embodiment, the clamping assembly 6 includes a clamping block 301 fixed to one end of the rotating rod 204 , a latch 302 is inserted into the top of the clamping block 301 , and the latch 302 is clamped with the outer wall of the cutter 11 .

[0034] In this embodiment, the tool changing assembly 7 includes a gear 401 fixed to the end of the rotating rod 204 away from the clamping block 301, a groove 402 is provided at the top of the fixed seat 202, a rack 403 is fixed on the inner side of the groove 402, the rack 403 is meshed with the gear 401, a push bar 404 is slidably connected to the inner side of the tool changing seat 203, a sliding groove 405 is provided at the top of the tool changing seat 203, a slide bar 406 is fixed on the top of the push bar 404, the upper outer wall of the slide bar 406 is slidably connected to the inner side of the sliding groove 405, a first connecting bar 407 is fixed to one end of the fixed seat 202, and a second connecting bar 408 is fixed to the end of the fixed seat 202 close to the rack 403, the inner sides of the first connecting bar 407 and the second connecting bar 408 are slidably connected to the upper outer wall of the slide bar 406.

[0035] In this embodiment, the driving assembly 8 includes a driving cylinder 501 fixed inside the tool changing slot 201 , and a moving end of the driving cylinder 501 is fixed to an outer wall of the tool changing seat 203 .

[0036] In this embodiment, a mold cavity 9 is formed on a side of the right mold 2 corresponding to the left mold 1 , and a material injection groove 10 is formed on the top of the right mold 2 , and the material injection groove 10 extends to the inside of the mold cavity 9 .

[0037] Compared with the comparative documents, the present application can ensure that all surfaces of the cutter 11 are evenly worn by automatically replacing the cutting surface of the cutter 11 through the cutting mechanism 4, avoiding the problem of uneven wear caused by using the same surface for cutting for a long time, thereby extending the service life of the cutter 11. In addition, the automatic replacement of the cutting surface by the tool changing assembly 7 can reduce the time required to stop the machine to replace or adjust the cutter 11 due to wear of the cutter 11, which helps to improve production efficiency and reduce the risk of production interruption.

[0038] The working principle of the in-mold rapid hot cutting mechanism provided by the utility model is as follows:

[0039] First, start the driving cylinder 501 to drive the tool changer 203 to slide along the inner side of the first connecting strip 407, and then the tool changer 203 drives, then start the driving cylinder 501 to drive the tool changer 203 to slide, and then the tool changer 203 drives the gear 401 to slide to the rack 403, and then the rack 403 drives the gear 401 to rotate, and then the gear 401 drives the rotating rod 204 to rotate, and then the rotating rod 204 drives the clamping block 301 to rotate, and then the clamping block 301 drives the cutter 11 to flip and switch, after the switching is completed, the second connecting strip 408 drives the sliding rod 406 to slide, and then the sliding rod 406 drives the pushing bar 404 to slide, and then the pushing bar 404 drives the rack 403 to slide, and when the sliding rod 406 slides to the inner side of the second connecting strip 408, it is fixed, and then the material is cut.

[0040] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A rapid in-mold hot cutting mechanism, characterized in that: The invention comprises a left mold (1), a right mold (2) is arranged on a side corresponding to the left mold (1), a limiting assembly (3) for limiting the position of the left mold (1) is installed on the outer wall of the right mold (2), and a cutting mechanism (4) for cutting off materials is installed on the inner side of the left mold (1), and the cutting mechanism (4) comprises: A cutting assembly (5) is installed on the inner side of the left mold (1), comprising a tool changing groove (201) provided on the inner wall of the left mold (1), a fixed seat (202) being fixed on the inner side of the tool changing groove (201), a tool changing seat (203) being slidably connected to the inner side of the fixed seat (202), a rotating rod (204) being rotatably connected to the inner side of the tool changing seat (203) via a bearing, a clamping assembly (6) for clamping the cutting knife (11) being installed on one end of the rotating rod (204), and a tool changing assembly (7) for replacing the cutting knife (11) being installed on the other end of the rotating rod (204); The driving assembly (8) is installed on the inner side of the tool changing groove (201) and is used for driving the tool changing seat (203) to slide.

2. The in-mold rapid hot cutting mechanism according to claim 1, characterized in that: The limiting assembly (3) comprises a limiting groove (101) symmetrically arranged on the outer wall of the right mold (2); a limiting column (102) is symmetrically fixed on one side of the left mold (1) close to the right mold (2); and the limiting column (102) is slidably connected to the limiting groove (101).

3. The in-mold rapid hot cutting mechanism according to claim 1, characterized in that: The clamping assembly (6) comprises a clamping block (301) fixed to one end of the rotating rod (204), a latch (302) being inserted into the top of the clamping block (301), and the latch (302) is clamped with the outer wall of the cutter (11).

4. The in-mold rapid hot cutting mechanism according to claim 3, characterized in that: The tool changing assembly (7) comprises a gear (401) fixed to an end of the rotating rod (204) away from the clamping block (301); a groove (402) is provided on the top of the fixing seat (202); a rack (403) is fixed on the inner side of the groove (402); the rack (403) is meshedly connected to the gear (401); a push bar (404) is slidably connected to the inner side of the tool changing seat (203); a sliding groove (405) is provided on the top of the tool changing seat (203); A sliding bar (406) is fixed to the top of the pushing bar (404), and the outer wall of the upper end of the sliding bar (406) is slidably connected to the inner side of the sliding groove (405). A first connecting bar (407) is fixed to one end of the fixed seat (202), and a second connecting bar (408) is fixed to one end of the fixed seat (202) close to the rack (403), and the inner sides of the first connecting bar (407) and the second connecting bar (408) are slidably connected to the outer wall of the upper end of the sliding bar (406).

5. The in-mold rapid hot cutting mechanism according to claim 1, characterized in that: The driving assembly (8) comprises a driving cylinder (501) fixed inside the tool changing groove (201), and a movable end of the driving cylinder (501) is fixed to an outer wall of the tool changing seat (203).

6. The in-mold rapid hot cutting mechanism according to claim 1, characterized in that: A mold cavity (9) is provided on the side of the right mold (2) corresponding to the left mold (1), and an injection groove (10) is provided on the top of the right mold (2), and the injection groove (10) extends to the inside of the mold cavity (9).

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