Injection molding sprue cutting device

Abstract

The utility model belongs to the technical field of cutting devices, and particularly relates to an injection molding sprue cutting device which comprises a base, a supporting column is fixedly installed on the surface of the base, a top plate is fixedly installed on the surface of the supporting column, an air cylinder is fixedly installed on the surface of the top plate, a pressing plate is installed at the output end of the air cylinder, and a clamping groove is formed in the surface of the base. A clamping groove is formed in the base, a clamping block is inserted in the clamping groove, a mold is fixedly installed on the surface of the clamping block, a sliding rod is connected into the base in a sliding mode, and a spring A is arranged on the surface of the sliding rod in a sleeved mode. According to the mold assembling and disassembling device, by arranging the clamping groove, the clamping block, the sliding rod, the spring A, a connecting block, a baffle, a shifting piece and a sliding groove, the effect of conveniently assembling and disassembling the mold is achieved; therefore, the effect that a worker can conveniently replace a mold matched with the injection molding part according to the model of the injection molding part is achieved, the adaptability of the cutting device is improved, meanwhile, the production cost of the injection molding part is reduced, and the cutting device is simple in structure and high in practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of cutting devices, in particular to an injection molding gate cutting device. Background Art

[0002] The injection molding gate cutting device is a device for removing or cutting the gate on the product during the injection molding process. The gate is the part of the plastic product connected to the mold during the injection molding process, and usually needs to be cut off in the finished product to obtain the final product. Publication No. CN206106284U discloses an injection molding gate cutting device, including a base, which is arranged horizontally, a bracket is provided on the base, a cylinder is provided on the bracket, the cylinder includes a piston rod, the piston rod is arranged vertically, and an upper cutter head is provided at the bottom end of the piston rod. A limit plate is also installed on the bracket, the limit plate is arranged vertically, the limit plate is located on one side of the upper cutter head, and a limit groove is provided on the limit plate. The limit groove is used to limit the position of the injection molded part to be cut off, a positioning pad is installed on the base, and a lower cutter head is provided on the positioning pad, and the position of the lower cutter head corresponds to the position of the upper cutter head. The cylinder is connected to a controller, and the controller is used to control the telescopic speed of the piston rod. A switch button is installed on the base, and the switch button is connected to the cylinder. The beneficial effects of the utility model are as follows: the cutting device can cut smoothly and the defect rate is significantly reduced. Although the cutting device can cut smoothly, it is lacking in adaptability. Since the cutting device does not have a structure for replacing a limit block or a mold, when it is necessary to cut the gate of an injection molded part of a different model, only a cutting device that is compatible with the injection molded part can be replaced, which reduces the adaptability of the cutting device and increases the production cost of the injection molded part. Utility Model Content

[0003] The purpose of the utility model is to provide an injection molding gate cutting device, so as to at least solve the above-mentioned problems existing in the prior art.

[0004] To achieve the above-mentioned purpose, the injection molding gate cutting device provided by the embodiment of the utility model includes a base, a pillar is fixedly installed on the surface of the base, a top plate is fixedly installed on the surface of the pillar, a cylinder is fixedly installed on the surface of the top plate, a pressure plate is installed on the output end of the cylinder, a card slot is opened on the surface of the base, a card block is inserted in the card slot, a mold is fixedly installed on the surface of the card block, a sliding rod is slidably connected to the inside of the base, a spring A is sleeved on the surface of the sliding rod, a connecting block is fixedly installed on the surface of the sliding rod, a baffle is fixedly installed on the surface of the connecting block, a paddle is fixedly installed on the surface of the baffle, a sliding groove is opened on the surface of the base, a cutter head is fixedly installed on the bottom surface of the pressure plate, and a cutting groove is opened on the surface of the base.

[0005] Preferably, a long rod is slidably connected inside the pressure plate, a spring B is sleeved on the surface of the long rod, a bottom plate is fixedly mounted on the surface of the long rod, and a soft cushion is fixedly mounted on the surface of the bottom plate.

[0006] Preferably, one end of the spring A is connected to the surface of the connecting block, and the other end is connected to the inner surface of the base.

[0007] Preferably, the pressure plate is slidably connected to the support column, and the baffle is slidably connected to the slide groove.

[0008] Preferably, the cutter head is slidably connected to the cutting groove, and the clamping block is slidably connected to the clamping groove.

[0009] Preferably, one end of the spring B is connected to the bottom surface of the pressure plate, and the other end is connected to the surface of the bottom plate.

[0010] Preferably, the material of the soft pad is natural rubber.

[0011] The above one or more technical solutions in the injection gate removal device provided by the embodiment of the utility model have at least one of the following technical effects:

[0012] 1. In the utility model, the disassembly and assembly of the mold is facilitated by arranging the card slot, the card block, the slide bar, the spring A, the connecting block, the baffle, the paddle and the slide slot, so that the staff can replace the mold suitable for the injection molded part according to the model of the injection molded part, thereby improving the adaptability of the cutting device while reducing the production cost of the injection molded part. The utility model has a simple structure and strong practicality.

[0013] 2. In the utility model, the long rod, spring B, bottom plate and cushion are provided to fix the injection molded part when the gate of the injection molded part is cut, thereby avoiding the injection molded part from warping up during cutting and preventing the injection molded part from being damaged by compression. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the injection gate cutting device proposed by the utility model;

[0016] Figure 2The utility model provides an exploded structural diagram of a clamping block, a mold, a sliding rod, a spring A, a baffle and a paddle in an injection molding gate cutting device;

[0017] Figure 3 The utility model provides an exploded structural diagram of a long rod, a spring B, a bottom plate and a soft pad for an injection molding gate removal device;

[0018] Figure 4 The utility model proposes an injection molding gate cutting device Figure 2 Enlarged view of point A in .

[0019] Among them, the reference numerals in the figure are:

[0020] 1-base; 2-pillar; 3-top plate; 4-cylinder; 5-pressing plate; 6-slot; 7-block; 8-mold; 9-slide rod; 10-spring A; 11-connecting block; 12-baffle; 13-paddle; 14-slide groove; 15-cutter head; 16-cutting groove; 17-long rod; 18-spring B; 19-bottom plate; 20-cushion. DETAILED DESCRIPTION

[0021] The following describes the embodiments of the present invention in detail, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Figure 1-4 The described embodiments are exemplary and are intended to be used to explain the embodiments of the present invention, but should not be construed as limiting the present invention.

[0022] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0024] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0025] In one embodiment of the present invention, Figures 1 to 4 As shown, an injection molding gate cutting device is provided, including a base 1, a pillar 2 is fixedly installed on the surface of the base 1, a top plate 3 is fixedly installed on the surface of the pillar 2, a cylinder 4 is fixedly installed on the surface of the top plate 3, a pressing plate 5 is installed on the output end of the cylinder 4, the pressing plate 5 is slidably connected to the pillar 2, and the sliding design of the pressing plate 5 and the pillar 2 has the effect of limiting the pressing plate 5 when the pressing plate 5 moves downward under the drive of the cylinder 4, a card slot 6 is opened on the surface of the base 1, a card block 7 is inserted in the card slot 6, the card block 7 is slidably connected to the card slot 6, and the sliding design of the card block 7 and the card slot 6 has the effect of facilitating the fixing of the mold 8 in the base 1 through the card block 7, the surface of the card block 7 is fixedly installed with the mold 8, the inside of the base 1 is slidably connected with a sliding rod 9, the surface of the sliding rod 9 is sleeved with a spring A10, one end of the spring A10 is connected to the surface of the connecting block 11, and the other end of the spring A10 is connected to the surface of the connecting block 11. One end is connected to the inner surface of the base 1, and the design of the spring A10 drives the baffle 12 and the paddle 13 to slide upward in the slide groove 14 through the slide rod 9 and the connecting block 11, thereby fixing the block 7 and the mold 8. The surface of the slide rod 9 is fixedly installed with a connecting block 11, the surface of the connecting block 11 is fixedly installed with a baffle 12, and the surface of the baffle 12 is fixedly installed with a paddle 13. The design of the paddle 13 facilitates the staff to control the up and down movement of the baffle 12. The surface of the base 1 is provided with a slide groove 14, and the baffle 12 is slidably connected to the slide groove 14. The sliding design of the baffle 12 and the slide groove 14 has the effect of limiting the baffle 12 when the baffle 12 moves. The bottom surface of the pressure plate 5 is fixedly installed with a cutter head 15, and the surface of the base 1 is provided with a cutting groove 16, and the cutter head 15 is slidably connected to the cutting groove 16.

[0026] like Figure 1-4As shown, a long rod 17 is slidably connected inside the pressure plate 5, and a spring B18 is sleeved on the surface of the long rod 17. One end of the spring B18 is connected to the bottom surface of the pressure plate 5, and the other end is connected to the surface of the bottom plate 19. The design of the spring B18 has the effect of pushing the bottom plate 19 and the soft pad 20 downward, thereby fixing the injection molded part in the mold 8 to prevent it from tilting when the gate of the injection molded part is cut off, and the bottom plate 19 is fixedly installed on the surface of the long rod 17, and the soft pad 20 is fixedly installed on the surface of the bottom plate 19. The material of the soft pad 20 is natural rubber. The design of the natural rubber material has the effect of providing buffering protection for the injection molded part when the injection molded part is fixed, thereby preventing the surface of the injection molded part from being damaged when it is subjected to greater pressure.

[0027] When the injection molding gate cutting device of the utility model embodiment is working, the injection molded part is first prevented from being in the mold 8. At this time, the cylinder 4 is opened again, and the cylinder 4 will drive the pressure plate 5 to move downward, and the pressure plate 5 will drive the cutter head 15 to move downward until the cutter head 15 cuts off the gate of the injection molded part. When the mold 8 needs to be replaced, it is only necessary to slide the paddle 13 downward, and the paddle 13 will drive the baffle 12 to slide downward in the slide groove 14, and the baffle 12 will drive the slide bar 9 to slide downward through the connecting block 11. After the baffle 12 is moved out from the surface of the card block 7, the card block 7 together with the mold 8 can be pulled out from the card slot 6. At this time, the mold 8 of a different model together with the card block 7 are inserted into the card slot 6. At this time, the paddle 13 is released again, and the connecting block 11 will be acted upon by the elastic force of the spring A10 to push the baffle 12 and the paddle 13 upward in the slide groove 14 until the baffle 12 is stuck on the surface of the card block 7. The mold 8 can be replaced by simply pressing the surface. The replaceable design of the mold 8 makes it easy for the staff to replace the mold 8 that is compatible with the injection molded part according to the model of the injection molded part, thereby improving the adaptability of the cutting device while also reducing the production cost of the injection molded part. When the cylinder 4 drives the pressure plate 5 to slide downward, the bottom plate 19 and the cushion 20 will first touch the injection molded part. As the pressure plate 5 continues to move downward, the bottom plate 19 will be pressed and will drive the long rod 17 to slide toward the inside of the pressure plate 5. At the same time, the bottom plate 19 will also be subject to the downward elastic force of the spring B18, so that the bottom plate 19 and the cushion 20 are tightly fitted to the surface of the injection molded part. The design of the bottom plate 19 and the cushion 20 has the effect of fixing the injection molded part when the gate of the injection molded part is cut, avoiding the injection molded part from tilting during cutting, and also preventing the injection molded part from being damaged by pressure.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An injection molding gate cutting device, comprising a base (1), characterized in that: A pillar (2) is fixedly mounted on the surface of the base (1), a top plate (3) is fixedly mounted on the surface of the pillar (2), a cylinder (4) is fixedly mounted on the surface of the top plate (3), a pressure plate (5) is mounted on the output end of the cylinder (4), a card slot (6) is provided on the surface of the base (1), a card block (7) is inserted in the card slot (6), a mold (8) is fixedly mounted on the surface of the card block (7), a sliding rod (9) is slidably connected inside the base (1), a spring A (10) is sleeved on the surface of the sliding rod (9), a connecting block (11) is fixedly mounted on the surface of the sliding rod (9), a baffle (12) is fixedly mounted on the surface of the connecting block (11), a paddle (13) is fixedly mounted on the surface of the baffle (12), a sliding groove (14) is provided on the surface of the base (1), a cutter head (15) is fixedly mounted on the bottom surface of the pressure plate (5), and a cutting groove (16) is provided on the surface of the base (1).

2. The injection molding gate cutting device according to claim 1, characterized in that: A long rod (17) is slidably connected inside the pressure plate (5), a spring B (18) is sleeved on the surface of the long rod (17), a bottom plate (19) is fixedly mounted on the surface of the long rod (17), and a soft pad (20) is fixedly mounted on the surface of the bottom plate (19).

3. The injection molding gate cutting device according to claim 1, characterized in that: One end of the spring A (10) is connected to the surface of the connecting block (11), and the other end is connected to the inner surface of the base (1).

4. The injection molding gate cutting device according to claim 1, characterized in that: The pressure plate (5) is slidably connected to the support column (2), and the baffle plate (12) is slidably connected to the slide groove (14).

5. The injection molding gate cutting device according to claim 1, characterized in that: The cutter head (15) is slidably connected to the cutting groove (16), and the clamping block (7) is slidably connected to the clamping groove (6).

6. The injection molding gate cutting device according to claim 2, characterized in that: One end of the spring B (18) is connected to the bottom surface of the pressure plate (5), and the other end is connected to the surface of the bottom plate (19).

7. The injection molding gate cutting device according to claim 2, characterized in that: The material of the soft pad (20) is natural rubber.

Images