Double-end water gap cutting device for injection molded part

Abstract

The utility model relates to the technical field of production and processing of injection-molded parts, in particular to a double-end water gap cutting device for an injection-molded part. The problem that under the condition that one injection molding part is provided with a plurality of independent plastic parts, the efficiency of manual water gap cutting is low is solved. According to the design, firstly, a punching air cylinder on a top plate is started to drive an upper pressing plate to move downwards, so that a punching tool bit on a mounting block carries out water gap cutting operation on an injection molding part, the operation efficiency of the injection molding part can be improved by arranging a double-end water gap cutting operation, and when an extrusion plate makes contact with the injection molding part, preliminary fixing and downward pressing are carried out; the injection molding part is prevented from displacing during operation, a certain buffering effect on the injection molding part is achieved, the precision of water gap cutting is improved, and the pressing block made of rubber is arranged, so that the extrusion plate is prevented from directly and rigidly abutting against the injection molding part during punching during water gap cutting of the injection molding part, the injection molding part is prevented from being damaged by rigid abutting, the cutting quality of injection molding part products is improved, and the production efficiency is improved. And the device is good in flexibility.

Description

Technical Field

[0001] The utility model relates to the technical field of production and processing of injection molded parts, in particular to a double-end water cut device for injection molded parts. Background Art

[0002] Injection molded parts are workpieces produced through the injection molding process. General injection molded parts will inevitably have sprues after injection molding, and the sprues need to be cut along the gate to obtain usable plastic parts. In the injection molding industry, sprues refer to the rubber in the flow channel when the glue is injected into the product cavity. In conventional technology, in most cases in the prior art, the punching of sprues is done manually, which has low operating efficiency, and the cuts are uneven after punching, which affects the later assembly efficiency. In the case of multiple separate plastic parts for an injection molded part, the efficiency of manual sprue cutting is even lower. Utility Model Content

[0003] (1) Technical issues to be resolved

[0004] In order to solve the problem that manual water nozzle cutting is less efficient when there are multiple separate plastic parts for one injection molded part.

[0005] (2) Technical solution

[0006] The technical solution of the utility model is: a double-end water outlet device for injection molded parts, including a fixing frame and a base installed on the fixing frame, support frames are installed at the four corners of the base surface, and the ends of the support frames away from the base are connected to the top plate arranged above the fixing frame; it also includes a stamping cylinder, an upper pressure plate, a punching plate and a punching assembly, the surface of the top plate is installed with a stamping cylinder, the protruding end of the stamping cylinder passes through the top plate and is connected to the upper pressure plate arranged below the top plate, the surface of the base is installed with a punching plate below the upper pressure plate, and a punching assembly is arranged between the upper pressure plate and the punching plate.

[0007] Preferably, the design first starts the stamping cylinder on the top plate to drive the upper pressure plate to move downward, so that the punching cutter head on the mounting block performs the water cutting operation on the injection molded part. By setting a double-end water cutting operation, the operation efficiency of the injection molded part can be improved, and displacement of the injection molded part during operation can be prevented, which has a certain buffering effect on the injection molded part and improves the accuracy of the water cutting operation.

[0008] Furthermore, the punching assembly includes a mounting block, a punching head and a drop groove. The mounting block is symmetrically mounted on the lower surface of the upper pressure plate, and two groups of punching heads are symmetrically mounted on both sides of the surface of the mounting block. A drop groove is provided on the surface of the punching plate at a position corresponding to the mounting block. The punching head passes through the drop groove and cooperates with the punching assembly to drive the upper pressure plate downward by starting the stamping cylinder on the top plate, so that the punching head on the mounting block performs water cutting operation on the injection molded parts. By setting a double-end water cutting operation, the operation efficiency of the injection molded parts can be improved.

[0009] Furthermore, two extrusion plates are arranged on the bottom surface of the upper pressure plate at positions corresponding to the mounting block, and through grooves matching the mounting block are provided on the surface of the extrusion plate. Guide sleeves A are installed in multiple through holes provided on the surface of the upper pressure plate, and guide rods are inserted in multiple guide sleeves A. One end of the guide rod passes through the guide sleeve A and is respectively connected to the four corners of the surface of the extrusion plate. When the extrusion plate contacts the injection molded part, it is initially fixed and pressed down to avoid displacement of the injection molded part during operation, which has a certain buffering effect on the injection molded part and improves the accuracy of the water cutting.

[0010] Furthermore, two groups of pressure blocks are symmetrically installed on the bottom surface of the extrusion plate. By providing the pressure blocks made of rubber material, it is avoided that the extrusion plate is directly pressed against the injection molded part when the injection molding part is cut at the water outlet, thereby avoiding the injection molded part from being damaged by hard pressure and improving the cutting quality of the injection molded part product.

[0011] Furthermore, guide sleeves B are installed in the through holes opened at the four corners of the surface of the upper pressure plate, and fixing rods are inserted into the inside of the four guide sleeves B. The two ends of the fixing rods are respectively fixedly connected to the top plate and the punching plate. By arranging the fixing rod between the top plate and the punching plate and installing the guide sleeves B on the upper pressure plate, the stability of the upper pressure plate during the downward movement can be ensured, and the stability of the punching head when cutting the water outlet of the injection molded part can be ensured, thereby improving the accuracy of the water outlet.

[0012] Furthermore, universal wheels are fixedly installed at the four corners of the bottom surface of the fixing frame by bolts, and the flexibility of the device when in use can be improved by installing the universal wheels.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the beneficial effect of the utility model is that: the design first starts the stamping cylinder on the top plate to drive the upper pressure plate to move downward, so that the punching cutter head on the mounting block performs the water cut operation on the injection molded part. By setting the double-end water cut, the operation efficiency of the injection molded part can be improved, and the displacement of the injection molded part during operation can be prevented, which has a certain buffering effect on the injection molded part, improves the accuracy of the water cut, and improves the quality of the cutting of the injection molded product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 What is shown is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 The diagram showing the opening position of the drop chute in the utility model is shown;

[0017] Figure 3 What is shown is the structural view of the punching group in the utility model;

[0018] Figure 4 The utility model is shown Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 The structure diagram of the punching component used in the utility model is shown;

[0020] Figure 6 What is shown is a bottom view of the punching component in the present invention.

[0021] Explanation of the accompanying drawings: 1-fixed frame, 2-base, 3-top plate, 4-support frame, 5-stamping cylinder, 6-upper pressure plate, 7-punching plate, 8-punching assembly, 81-lower template, 82-extrusion plate, 83-guide sleeve A, 84-guide rod, 85-mounting block, 86-punching head, 87-pressure block, 88-drop groove, 9-fixed rod, 10-universal wheel, 11-guide sleeve B. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments. Embodiment 1:

[0023] See also Figure 1-6 The utility model provides an embodiment: a double-end water inlet device for injection molding, comprising a fixing frame 1 and a base 2 mounted on the fixing frame 1, support frames 4 are installed at the four corners of the surface of the base 2, and the end of the support frame 4 away from the base 2 is connected to the top plate 3 arranged above the fixing frame 1; it also includes a stamping cylinder 5, an upper pressing plate 6, a punching plate 7 and a punching assembly 8, the surface of the top plate 3 is installed with a stamping cylinder 5, the protruding end of the stamping cylinder 5 passes through the top plate 3 and is connected to the upper pressing plate 6 arranged at a position below the top plate 3, the surface of the base 2 is located below the upper pressing plate 6. A punching plate 7 is installed, and a punching assembly 8 is arranged between the upper pressing plate 6 and the punching plate 7. The punching assembly 8 includes a mounting block 85, a punching cutter head 86 and a drop groove 88, the lower surface of the upper pressing plate 6 is symmetrically mounted with mounting blocks 85, and two groups of punching cutter heads 86 are symmetrically mounted on both sides of the surface of the mounting block 85. A drop groove 88 is provided at the corresponding position of the mounting block 85, and the punching cutter head 86 passes through the drop groove 88, and cooperates with the punching assembly 8 to drive the upper pressing plate 6 to move downward by starting the punching cylinder 5 on the top plate 3, so that the punching cutter head 86 on the mounting block 85 performs the water cut operation on the injection molded part. By setting the double-end water cut, the operation efficiency of the injection molded part can be improved. Two extrusion plates 82 are provided at the corresponding position of the bottom surface of the upper pressing plate 6 and the mounting block 85. The surface of the extrusion plate 82 is provided with a through groove that matches the mounting block 85. Guide sleeves A83 are installed in multiple through holes provided on the surface of the upper pressing plate 6, and guide rods 84 are inserted in multiple guide sleeves A83. One end of the guide rod 84 passes through the guide sleeve A83 and is respectively connected to the four corners of the surface of the extrusion plate 82. When the extrusion plate 82 contacts the injection molded part, it is initially fixed and pressed down to avoid displacement of the injection molded part during operation, which has a certain buffering effect on the injection molded part and improves the accuracy of the water cut. Embodiment 2:

[0024] See also Figure 1-6 In this embodiment, guide sleeves B11 are installed in the through holes opened at the four corners of the surface of the upper pressure plate 6, and fixing rods 9 are inserted inside the four guide sleeves B11. The two ends of the fixing rods 9 are respectively fixedly connected to the top plate 3 and the punching plate 7. By arranging the fixing rod 9 between the top plate 3 and the punching plate 7 and installing the guide sleeves B11 on the upper pressure plate 6, the stability of the upper pressure plate 6 during the downward movement can be ensured, and the stability of the punching tool head 86 when the injection molded part is cut, thereby improving the accuracy of the water cutting.

[0025] Two groups of pressing blocks 87 are symmetrically installed on the bottom surface of the extrusion plate 82. By setting the pressing blocks 87 made of rubber material, it is prevented that the extrusion plate 82 directly presses against the injection molded part when the injection molded part is cut at the water outlet, thereby preventing the injection molded part from being damaged by the hard pressing, and improving the cutting quality of the injection molded part product;

[0026] Universal wheels 10 are fixedly installed at the four corners of the bottom surface of the fixing frame 1 by bolts. The installation of the universal wheels 10 can improve the flexibility of the device when in use.

[0027] Through the above steps, the design first starts the punching cylinder 5 on the top plate 3 to drive the upper pressure plate 6 to move downward, so that the punching cutter head 86 on the mounting block 85 performs the water cut operation on the injection molded part. By setting the double-end water cut operation, the operation efficiency of the injection molded part can be improved. When the extrusion plate 82 contacts the injection molded part, it is initially fixed and pressed down to avoid displacement of the injection molded part during operation, which has a certain buffering effect on the injection molded part and improves the accuracy of the water cut. By setting the rubber pressure block 87, it is avoided that the extrusion plate 82 is directly pressed against the injection molded part when punching when the injection molded part is cutting the water cut, thereby avoiding the injection molded part from being damaged by hard pressure and improving the quality of the injection molded product cutting.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A double-end water-cutting device for injection molded parts, comprising a fixing frame (1) and a base (2) mounted on the fixing frame (1), support frames (4) being mounted at four corners of the surface of the base (2), and ends of the support frames (4) away from the base (2) being connected to a top plate (3) arranged above the fixing frame (1); characterized in that: It also includes a punching cylinder (5), an upper pressing plate (6), a punching plate (7) and a punching assembly (8); the punching cylinder (5) is installed on the surface of the top plate (3); the protruding end of the punching cylinder (5) passes through the top plate (3) and is connected to the upper pressing plate (6) arranged below the top plate (3); the punching plate (7) is installed on the surface of the base (2) below the upper pressing plate (6); and the punching assembly (8) is arranged between the upper pressing plate (6) and the punching plate (7).

2. The double-end water cut device for injection molded parts according to claim 1, characterized in that: The punching assembly (8) comprises a mounting block (85), a punching blade (86) and a drop groove (88); the mounting block (85) is symmetrically mounted on the lower surface of the upper pressure plate (6); two groups of punching blades (86) are symmetrically mounted on both sides of the surface of the mounting block (85); a drop groove (88) is provided on the surface of the punching plate (7) at a position corresponding to the mounting block (85); and the punching blade (86) passes through the drop groove (88).

3. The double-end water cut device for injection molded parts according to claim 1, characterized in that: Two extrusion plates (82) are arranged at positions corresponding to the bottom surface of the upper pressure plate (6) and the mounting block (85); a through groove matching the mounting block (85) is provided on the surface of the extrusion plate (82); guide sleeves A (83) are installed in the plurality of through holes provided on the surface of the upper pressure plate (6); guide rods (84) are inserted in the plurality of guide sleeves A (83); one end of the guide rod (84) passes through the guide sleeve A (83) and is respectively connected to the four corners of the surface of the extrusion plate (82).

4. A double-end water cut device for injection molded parts according to claim 3, characterized in that: Two groups of pressing blocks (87) are symmetrically mounted on the bottom surface of the extrusion plate (82).

5. The double-end water cut device for injection molded parts according to claim 1, characterized in that: Guide sleeves B (11) are installed in through holes opened at the four corners of the surface of the upper pressure plate (6), and fixing rods (9) are inserted into the interiors of the four guide sleeves B (11). The two ends of the fixing rods (9) are respectively fixedly connected to the top plate (3) and the punching plate (7).

6. The double-end water cut device for injection molded parts according to claim 1, characterized in that: Universal wheels (10) are fixedly mounted at the four corners of the bottom surface of the fixing frame (1) by means of bolts.

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