Die notching device

Abstract

The utility model belongs to the technical field of die notching, particularly relates to a die notching device, and aims to solve the problems that when a to-be-cut plastic part is placed on an existing punching die located under an air cylinder or a hydraulic oil cylinder, certain dangerousness exists, and subsequent notching operation is affected due to the fact that residual waste materials in a die groove are not cleaned in time. According to the technical scheme, the fixed punching die comprises a base, the top of the base and one side of the base are provided with discharging ports which are communicated with each other, the movable assembly is arranged, so that the fixed punching die moves automatically and is far away from a first air cylinder used for punching, safety is improved, a plastic part to be cut is convenient to place and align, and production efficiency is improved. According to the fixed punching die, the working efficiency and the notching precision are improved, air is blown to the die groove in the fixed punching die through the air blowing assembly, waste clamped in the die groove is effectively blown up, waste residues are avoided, normal proceeding of follow-up notching operation is guaranteed, and meanwhile the service life of the die is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of mold incisions, in particular to a mold incision device. Background Art

[0002] During the molding process, the sprue is the part that connects the mold to the plastic part and is used to inject the molten plastic into the mold cavity. Therefore, after the plastic part is molded, the remaining part at the sprue is usually connected to the plastic part and needs to be punched out to ensure the integrity and appearance quality of the product.

[0003] Traditionally, when punching the remaining parts of plastic parts, manual operation is often relied on to place the plastic parts to be cut in the punching die. However, during the placement process, the punching die is located directly below the cylinder or hydraulic cylinder, which is dangerous. In addition, after the cut is completed, some waste materials often remain in the die groove. If these waste materials are not cleaned in time, they will affect the subsequent cutting operation and even damage the die. Therefore, we have proposed a die cutting device to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art of placing the plastic parts to be cut on the punching die located directly below the cylinder or hydraulic cylinder, which is dangerous and the waste materials remaining in the die groove are not cleaned in time, affecting the subsequent cutting operation, and to propose a die cutting device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A die cutting device comprises a base, wherein the top and one side of the base are provided with a communicating discharge port, a support frame is fixedly provided on the top of the base, a first cylinder is fixedly provided through the inner wall of the bottom of the support frame, an upper movable plate is fixedly connected to the output end of the first cylinder, a movable punching die is fixedly provided on the bottom of the upper movable plate, a lower movable plate is provided on the top of the base, a fixed punching die is provided on the top of the lower movable plate, and both the lower movable plate and the fixed punching die are provided with through holes for facilitating the falling of materials into the discharge port, and the device further comprises:

[0007] The moving assembly is arranged on the top of the base and is used to drive the lower moving plate to move away from the bottom of the first cylinder to facilitate the placement of the plastic parts to be cut;

[0008] The blowing component is arranged at the bottom of the fixed punching and cutting mold and is used to blow air to the mold groove on the fixed punching and cutting mold to blow up the waste material stuck in the mold groove.

[0009] In one possible design, the moving assembly includes a slide rail, which is fixedly arranged on the top of the base, and the discharge port is located in the middle of the slide rail. Two slide grooves are provided at the bottom of the lower movable plate, and both slide grooves are slidably connected to the slide rail. A mounting groove is provided at the top of the base, and a second cylinder is fixedly provided on the bottom inner wall of the mounting groove. The output end of the second cylinder is fixedly connected to the bottom of the lower movable plate through a connecting block.

[0010] In a possible design, four limit screws are symmetrically fixed on the top of the lower movable plate. The four limit screws all pass through the fixed punching die and are slidably connected to the fixed punching die. The four limit screws are all provided with springs below the fixed punching die. The top ends of the four limit screws are threadedly connected with fixed nuts for limiting the top ends of the springs.

[0011] In one possible design, the blowing assembly includes two fixed blocks, which are symmetrically fixed at the bottom of the fixed punching mold. An air inlet is provided on one side of the two fixed blocks, and the two air inlets are connected to an external compressed air source. Air ducts connected to the corresponding air inlets are provided inside the two fixed blocks, and a plurality of air outlet holes connected to the air ducts are provided on the top of the fixed block, and a plurality of through holes corresponding to the air outlet holes are provided on the fixed punching mold.

[0012] In a possible design, an annular groove is formed at the bottom of the fixed punching die and the top of the fixed block, and a same rubber ring for sealing is embedded in the two annular grooves.

[0013] In a possible design, two positioning rods are symmetrically fixed on the top of the base, both of which pass through the upper movable plate and are slidably connected to the upper movable plate, and the top ends of the two positioning rods are fixedly connected to the bottom interior of the support frame.

[0014] In the present application, first, the lower movable plate and the fixed punching die are moved to a position away from below the first cylinder by the moving assembly. At this time, the operator can place the plastic part to be cut on the fixed punching die and align it with the inner groove of the die. Then, the moving assembly is started again to move the lower movable plate and the fixed punching die to the position below the first cylinder, ready for the cutting operation.

[0015] Next, the first cylinder starts and pushes the upper movable plate and the movable punching die on it downward. The movable punching die cooperates with the fixed punching die to complete the cutting operation of the plastic part. The punched plastic part passes through the through holes on the lower movable plate and the fixed punching die and falls out from the discharge port of the base. After the cutting is completed, the first cylinder drives the upper movable plate and the movable punching die to reset.

[0016] At this time, the blowing assembly starts and injects compressed gas into the air channel in the fixed block through the air inlet. The gas passes through the air channel and is ejected from the air outlet to blow the mold groove on the fixed punching and cutting mold, blowing up the waste stuck in the mold groove. Under the action of the blowing, the waste also falls out through the through holes on the lower movable plate and the fixed punching and cutting mold and the discharge port of the base.

[0017] Beneficial effects:

[0018] In the present invention, the mold cutting device realizes the automatic movement of the lower movable plate and the fixed punching mold by providing a moving assembly, thereby keeping them away from the first cylinder used for punching, thereby improving safety, facilitating the placement and alignment of the plastic parts to be cut, and improving working efficiency and cutting accuracy.

[0019] In the utility model, the mold cutting device is provided with a blowing component to blow air to the mold groove on the fixed punching mold, thereby effectively blowing up the waste material stuck in the mold groove, avoiding the residue of the waste material, ensuring the normal progress of the subsequent cutting operation, and extending the service life of the mold;

[0020] In the utility model, by setting a moving component, the fixed punching and cutting mold can be automatically moved away from the first cylinder used for punching, thereby improving safety, facilitating the placement and alignment of the plastic parts to be cut, and improving working efficiency and cutting accuracy. The blowing component is used to blow the mold groove on the fixed punching and cutting mold, effectively blowing up the waste stuck in the mold groove, avoiding the residue of waste, ensuring the normal progress of subsequent cutting operations, and extending the service life of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional structural diagram of a mold cutting device proposed by the utility model;

[0022] Figure 2 This is a schematic structural diagram from another perspective of a mold cutting device proposed by the present invention;

[0023] Figure 3 This is a schematic diagram of a partially exploded three-dimensional structure of a mold cutting device proposed in the present invention;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of a fixed block of a mold cutting device proposed by the present invention;

[0025] Figure 5 This is a schematic diagram of the three-dimensional cross-sectional structure of a fixed block of a mold cutting device proposed by the present invention.

[0026] In the figure: 1. Base; 2. Support frame; 3. First cylinder; 4. Upper movable plate; 5. Lower movable plate; 6. Fixed punching die; 7. Moving punching die; 8. Slide rail; 9. Mounting slot; 10. Second cylinder; 11. Limit screw; 12. Spring; 13. Fixed block; 14. Rubber ring; 15. Air duct; 16. Air outlet; 17. Positioning rod. DETAILED DESCRIPTION

[0027] 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 the embodiments.

[0028] Example 1: Reference Figure 1-5 A cutting device includes a base 1 with a top and a side having interconnected discharge ports for discharging waste or finished products after punching. A support frame 2 is fixedly mounted on the top of the base 1. The support frame 2 is a frame structure that supports the upper cylinder and movable plate. A first cylinder 3 is fixedly mounted on the bottom inner wall of the support frame 2. The first cylinder 3 is vertically downwardly disposed, and its output end is fixedly connected to an upper movable plate 4. When the first cylinder 3 is in operation, it drives the upper movable plate 4 to move up and down.

[0029] A dynamic punching die 7 is fixedly mounted at the bottom of the upper movable plate 4. This die 7 cooperates with the fixed punching die 6 below to punch plastic parts. A lower movable plate 5 is mounted on top of the base 1. A fixed punching die 6, whose shape matches that of the dynamic punching die 7, is mounted on top of the lower movable plate 5. Both the lower movable plate 5 and the fixed punching die 6 are equipped with through-holes that facilitate the drop of materials into the discharge port. After punching, waste materials or finished products can fall through these through-holes into the discharge port.

[0030] In order to realize the movement of the lower movable plate 5, a moving assembly is also included, and the moving assembly is arranged on the top of the base 1. The moving assembly includes a slide rail 8, and the slide rail 8 is U-shaped. The slide rail 8 is fixedly arranged on the top of the base 1, and the discharge port is located in the middle of the slide rail 8. Two slide grooves are provided at the bottom of the lower movable plate 5, and both slide grooves are slidably connected to the slide rail 8, so that the lower movable plate 5 can slide along the slide rail 8. A mounting groove 9 is provided at the top of the base 1, and a second cylinder 10 is fixedly provided on the bottom inner wall of the mounting groove 9. The output end of the second cylinder 10 is fixedly connected to the bottom of the lower movable plate 5 through a connecting block. When it is necessary to place the plastic parts, the second cylinder 10 works to drive the lower movable plate 5 to move along the slide rail 8, thereby away from the bottom of the first cylinder 3, which is convenient for operation.

[0031] To ensure the stability of the fixed punching die 6, four limiting screws 11 are symmetrically fixed on the top of the lower movable plate 5. These four limiting screws 11 all penetrate the fixed punching die 6 and are slidably connected to the fixed punching die 6. Springs 12 are sleeved on the four limiting screws 11 below the fixed punching die 6. The setting of the springs 12 allows the fixed punching die 6 to have a certain buffer when subjected to the punching force, thereby avoiding damage. The top ends of the four limiting screws 11 are threadedly connected to fixed nuts for limiting the top ends of the springs 12. By adjusting the position of the fixing nuts, the compression of the springs 12 can be adjusted, thereby adjusting the height of the fixed punching die 6.

[0032] In order to remove the waste stuck in the mold groove, a blowing assembly is also included, and the blowing assembly is arranged at the bottom of the fixed punching mold 6. The blowing assembly includes two fixed blocks 13, and the two fixed blocks 13 are symmetrically fixed at the bottom of the fixed punching mold 6. An air inlet is provided on one side of the two fixed blocks 13, and the two air inlets are connected to an external compressed air source. The interior of the two fixed blocks 13 is provided with an air duct 15 connected to the corresponding air inlet, and the top of the fixed block 13 is provided with a plurality of air outlet holes 16 connected to the air duct 15. The fixed punching mold 6 is provided with a plurality of through holes corresponding to the air outlet holes 16. When the compressed air source is ventilated into the air duct 15, the gas is ejected from the air outlet holes 16 to blow up the waste stuck in the mold groove.

[0033] The present application can be used in the field of mold cutting technology, and can also be used in other fields applicable to the present application.

[0034] Example 2: Reference Figure 2-4 , improved on the basis of Example 1: a mold cutting device, which is applied to the field of mold cutting technology. In order to ensure the sealing of the blowing component, annular grooves are provided at the bottom of the fixed punching mold 6 and the top of the fixed block 13. The same rubber ring 14 for sealing is embedded in these two annular grooves. The setting of the rubber ring 14 can effectively prevent gas leakage.

[0035] In addition, in order to limit the movement direction of the upper movable plate 4, two positioning rods 17 are symmetrically fixed on the top of the base 1. These two positioning rods 17 both pass through the upper movable plate 4 and are slidably connected to the upper movable plate 4. The top ends of the two positioning rods 17 are fixedly connected to the bottom inner part of the support frame 2. This arrangement can make the upper movable plate 4 more stable when moving up and down.

[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mold cutting device, comprising a base (1), wherein the top and one side of the base (1) are provided with interconnected discharge ports, a support frame (2) is fixedly provided on the top of the base (1), a first cylinder (3) is fixedly provided through the bottom inner wall of the support frame (2), an upper movable plate (4) is fixedly connected to the output end of the first cylinder (3), a movable punching die (7) is fixedly provided at the bottom of the upper movable plate (4), a lower movable plate (5) is provided on the top of the base (1), a fixed punching die (6) is provided on the top of the lower movable plate (5), and both the lower movable plate (5) and the fixed punching die (6) are provided with through holes for facilitating the falling of materials into the discharge port, characterized in that: The device also includes: A moving assembly is provided on the top of the base (1) and is used to drive the lower moving plate (5) to move away from below the first cylinder (3) to facilitate the placement of the plastic part to be cut; The blowing component is arranged at the bottom of the fixed punching die (6) and is used to blow air into the die groove on the fixed punching die (6) so as to blow up the waste material stuck in the die groove.

2. A mold cutting device according to claim 1, characterized in that: The moving assembly includes a slide rail (8), the slide rail (8) is fixedly arranged on the top of the base (1), and the discharge port is located in the middle of the slide rail (8), the bottom of the lower movable plate (5) is provided with two slide grooves, both of which are slidably connected to the slide rail (8), the top of the base (1) is provided with a mounting groove (9), and the bottom inner wall of the mounting groove (9) is fixedly provided with a second cylinder (10), and the output end of the second cylinder (10) is fixedly connected to the bottom of the lower movable plate (5) through a connecting block.

3. A mold cutting device according to claim 2, characterized in that: Four limiting screws (11) are symmetrically fixed on the top of the lower movable plate (5), and the four limiting screws (11) all pass through the fixed punching die (6) and are slidably connected to the fixed punching die (6). Springs (12) are sleeved on the four limiting screws (11) below the fixed punching die (6), and the top ends of the four limiting screws (11) are threadedly connected with fixing nuts for limiting the top ends of the springs (12).

4. A die cutting device according to claim 1, characterized in that: The blowing assembly comprises two fixed blocks (13), the two fixed blocks (13) are symmetrically fixedly arranged at the bottom of the fixed punching die (6), one side of the two fixed blocks (13) is provided with an air inlet, the two air inlets are both connected to an external compressed air source, the interiors of the two fixed blocks (13) are provided with an air duct (15) connected to the corresponding air inlet, the top of the fixed block (13) is provided with a plurality of air outlet holes (16) connected to the air duct (15), and the fixed punching die (6) is provided with a plurality of through holes corresponding to the air outlet holes (16).

5. A die cutting device according to claim 4, characterized in that: The bottom of the fixed punching die (6) and the top of the fixed block (13) are both provided with an annular groove, and a rubber ring (14) for sealing is embedded in the two annular grooves.

6. A die cutting device according to claim 1, characterized in that: Two positioning rods (17) are symmetrically fixedly provided on the top of the base (1), and both positioning rods (17) pass through the upper movable plate (4) and are slidably connected to the upper movable plate (4). The top ends of the two positioning rods (17) are fixedly connected to the bottom interior of the support frame (2).

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