A cutting mechanism for injection molded parts

Abstract

The utility model discloses a cutting mechanism for a head of injection molded parts, which belongs to the technical field of injection molded parts production. The surface of a cutting machine table is fixedly connected with a frame, one end of the frame is provided with a cylinder, the output end of the cylinder is provided with a lifting arm, one end of the lifting arm is fixedly installed with a knife seat, the bottom of the knife seat is provided with a cutting knife, an air pump and a symmetrical lifting column are fixedly installed on the surface of the cutting machine table, one end of the lifting column is fixedly connected with a positioning platform, and the surface of the positioning platform is fixedly sleeved with an adsorption disk. The cutting mechanism for the head of injection molded parts not only facilitates the rapid positioning of the injection molded parts through elastic force and suction force, but also can avoid the injection molded parts from being scratched by contact with the cutting mechanism components during the head cutting process, and the cutting knife surface, the adsorption disk and the lifting column provided on the positioning platform facilitate the cutting mechanism to adjust and position the injection molded parts jigs with different structures, thereby increasing the application range of the cutting mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding production, and more specifically to an injection molding material head cutting mechanism. Background Art

[0002] Injection molding is a method of producing plastic products. It is to inject molten plastic into a plastic product mold under pressure and cool it to form the desired plastic parts. After the injection molding is completed, the injection molded part with the slug is taken out of the mold cavity, and the slug is separated from the injection molded part body by a cutting mechanism. However, the commonly used cutting mechanism needs to press and position the injection molded part during the cutting process, which may cause scratches on the surface of the injection molded part. In addition, the pressing component and the cutter position of the cutting mechanism are fixed, which may not be applicable when cutting injection molded parts of different sizes.

[0003] For example, announcement number CN216464773U discloses an injection molded part stub cutting device, which includes a machine platform, a cutting knife mechanism and a mounting fixture for placing injection molded parts; the cutting knife mechanism includes a cutting knife, an elastic pressing component, a cutting knife seat and a lifting drive mechanism; the lifting drive mechanism is installed on the machine platform, the cutting knife seat is connected to the lifting drive mechanism and the lifting drive mechanism drives the cutting knife seat to move up and down, and the cutting knife and the elastic pressing component are installed on the cutting knife seat; the mounting fixture is installed on the machine platform, and the mounting fixture is located below the cutting knife seat.

[0004] It can be seen from the above-mentioned public scheme that the positions of the cutter and the elastic pressing assembly are fixed, so that the spacing is fixed. When cutting different injection molded parts, the pressing position of the pressing assembly may be unstable, narrowing the scope of application. Moreover, when pressing the surface of the injection molded part, it will cause scratches on the surface of the injection molded part, reducing the appearance quality of the injection molded part. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide an injection molded part stub cutting mechanism, which, through the provision of an air pump and the suction holes and rubber sleeves provided on the positioning fixture, not only facilitates the rapid positioning of the injection molded parts through elastic force and suction force, but also can prevent the injection molded parts from being scratched by contact with the cutting mechanism components during the stub cutting process. In addition, through the cutting surface, adsorption plate and lifting column provided on the positioning table, the cutting mechanism is convenient for adjusting and positioning the injection molded part fixtures with different structures, thereby increasing the scope of application of the cutting mechanism.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A cutting mechanism for injection molded parts comprises a cutting machine table, the surface of the cutting machine table is fixedly connected to a frame, one end of the frame is provided with a cylinder, the output end of the cylinder is provided with a lifting arm, one end of the lifting arm is fixedly installed with a knife seat, the bottom of the knife seat is provided with a cutting knife, the surface of the cutting machine table is fixedly installed with an air pump and a symmetrical lifting column, one end of the lifting column is fixedly connected to a positioning table, the surface of the positioning table is fixedly sleeved with an adsorption disk, the surface of the adsorption disk is fixed with a positioning fixture through electromagnetic adsorption force, one end of the positioning fixture is provided with a rubber sleeve, and the air pump is fixedly installed with a positioning jig. The surface is provided with a suction end and an exhaust end, one end of the suction end is provided with a connecting pipe, and the other end of the connecting pipe is detachably connected to a trachea quick connector. The injection molded part head cutting mechanism, through the set air pump and the suction holes and rubber sleeves set on the positioning fixture, is not only convenient for quickly positioning the injection molded parts through elastic force and suction force, but also can avoid the injection molded parts from contacting and scratching the cutting mechanism components during the head cutting process. In addition, the cutting surface, adsorption plate and lifting column set on the positioning table facilitate the cutting mechanism to adjust and position the injection molded part fixtures with different structures, thereby increasing the application scope of the cutting mechanism.

[0008] Furthermore, one end of the trachea quick connector is fixedly sleeved on the bottom of the positioning fixture, one end of the trachea quick connector is connected to an air suction chamber, the inner wall of the air suction chamber is connected to an air suction hole, one end of the air suction hole is connected to a through hole, and the injection molded part sleeved on one end of the positioning fixture can be adsorbed and positioned by the suction force of the vacuum pump.

[0009] Furthermore, the through holes are evenly spaced on the surface of the rubber sleeve, the spacing of the through holes is the same as the spacing of the air intake holes, and the rubber sleeve is made of elastic wear-resistant rubber. The rubber sleeve can not only prevent the injection molded part from contacting and scratching the positioning fixture, but also prevent the injection molded part from shaking through elastic force.

[0010] Furthermore, a clearance hole is provided in the middle of the positioning platform, the inner wall of the clearance hole is in contact with and connected to the surface of the connecting pipe, and the clearance hole is a strip-shaped hole, which is convenient for the connection arrangement of the connecting pipe.

[0011] Furthermore, the lifting column is a hydraulic telescopic rod or an electric telescopic rod, the adsorption plate is an electromagnetic adsorption plate, the positioning fixture is made of iron metal, the positioning platform can quickly fix the installation position of the positioning fixture through magnetic adsorption, and the height can be adjusted by the extension and retraction of the lifting column.

[0012] Furthermore, a cutting surface is provided at one end of the positioning platform, and the surface of the cutting surface and the side surface of the cutting knife are in the same plane, which is convenient for positioning the cutting position of the injection molded part head.

[0013] Furthermore, a sleeve groove is provided at one end of the rubber sleeve to facilitate assembly and later replacement of the rubber sleeve and the positioning fixture.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] (1) This solution not only facilitates the rapid positioning of the injection molded parts by means of the vacuum pump and the suction holes and rubber sleeves provided on the positioning fixture through elastic force and suction, but also prevents the injection molded parts from being scratched by contact with the cutting mechanism components during the material cutting process.

[0016] (2) This solution facilitates the cutting mechanism to adjust and position the jigs for injection molded parts with different structures by means of the cutting surface, suction plate and lifting column arranged on the positioning table, thereby increasing the application scope of the cutting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a three-dimensional diagram of the positioning platform structure of the utility model;

[0019] Figure 3 This is a side view of the positioning fixture structure of the utility model;

[0020] Figure 4 It is a bottom view of the rubber sleeve structure of the utility model.

[0021] Description of the numbers in the figure:

[0022] 1 cutting machine table, 11 frame, 12 cylinder, 13 lifting arm, 2 cutting knife, 21 knife holder, 3 positioning table, 31 air avoidance hole, 32 lifting column, 33 adsorption plate, 34 cutting knife surface, 4 positioning fixture, 41 air pipe quick connector, 42 suction chamber, 43 suction hole, 44 rubber sleeve, 45 sleeve groove, 46 through hole, 5 vacuum pump, 51 suction end, 52 exhaust end, 53 connecting pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] See also Figure 1-4A cutting mechanism for injection molded parts includes a cutting machine table 1, the surface of the cutting machine table 1 is fixedly connected to a frame 11, one end of the frame 11 is provided with a cylinder 12, the cylinder 12 is provided with a control switch, by controlling the extension and retraction of a lifting arm 13, the cutter 2 is driven to move up and down to complete the cutting of the material head, the output end of the cylinder 12 is provided with a lifting arm 13, one end of the lifting arm 13 is fixedly installed with a knife seat 21, the bottom of the knife seat 21 is provided with a cutter 2, the surface of the cutting machine table 1 is fixedly installed with an air pump 5 and a symmetrical lifting column 32, one end of the lifting column 32 is fixedly connected with a positioning platform 3, the right side of the positioning platform 3 is provided with a collection box, which belongs to the prior art, the surface of the positioning platform 3 is fixedly sleeved with an adsorption disk 33, the surface of the adsorption disk 33 is fixed with a positioning fixture 4 by electromagnetic adsorption force, and one end of the positioning fixture 4 is provided with a rubber sleeve 44 A sleeve groove 45 is provided at one end of the rubber sleeve 44, and the internal size of the sleeve groove 45 is smaller than the size of one end of the positioning fixture 4. After the sleeve connection is completed, an elastic force is generated to deform the rubber sleeve 44, and the sleeve connection position is fixed by the elastic force, which is convenient for the assembly and later replacement of the rubber sleeve 44 and the positioning fixture 4. The rubber sleeve 44 can fill the gap between the positioning fixture 4 and the injection molded part, thereby preventing the injection molded part from shaking at one end of the positioning fixture 4 after positioning, which is convenient for the positioning and cutting of the material head. A suction end 51 and an exhaust end 52 are provided on the surface of the vacuum pump 5. The vacuum pump 5 belongs to the prior art and can absorb and position the injection molded part sleeved on one end of the positioning fixture 4 by suction force. The vacuum pump 5 is provided with a control switch, and a connecting pipe 53 is provided at one end of the suction end 51, and the other end of the connecting pipe 53 is detachably connected to the trachea quick connector 41.

[0026] One end of the trachea quick connector 41 is fixedly sleeved on the bottom of the positioning fixture 4, and one end of the trachea quick connector 41 is connected to an air suction chamber 42, and the inner wall of the air suction chamber 42 is connected to an air suction hole 43, and one end of the air suction hole 43 is connected to a through hole 46. The injection molded part sleeved on one end of the positioning fixture 4 can be adsorbed and positioned by the suction force of the vacuum pump 5, and the through holes 46 are evenly spaced on the surface of the rubber sleeve 44, and the spacing of the through holes 46 is the same as the spacing of the air suction holes 43. The rubber sleeve 44 is made of elastic and wear-resistant rubber. The rubber sleeve 44 can not only prevent the injection molded part from contacting and scratching the positioning fixture 4, but also prevent the injection molded part from shaking through the elastic force.

[0027] An air avoidance hole 31 is provided in the middle position of the positioning platform 3, and the inner wall of the air avoidance hole 31 is in contact with and connected to the surface of the connecting pipe 53. The air avoidance hole 31 is a strip hole, which is convenient for the connection arrangement of the connecting pipe 53. The lifting column 32 is a hydraulic telescopic rod or an electric telescopic rod, and the adsorption plate 33 is an electromagnetic adsorption plate. The positioning fixture 4 is made of iron metal. The positioning platform 3 can quickly fix the installation position of the positioning fixture 4 through magnetic adsorption, and the height can be adjusted by the extension and retraction of the lifting column 32. A cutting surface 34 is provided at one end of the positioning platform 3. The surface of the cutting surface 34 is in the same plane as the side of the cutter 2, which is convenient for positioning the cutting position of the injection molded part head.

[0028] When the injection molded part material head cutting mechanism is used, the positioning fixture 4 is first placed on the surface of the positioning platform 3, and then the injection molded part is sleeved on the surface of the rubber sleeve 44, and then the positioning fixture 4 is moved to the right, so that the material head of the sleeved injection molded part extends out of the cutting knife surface 34, so that the root of the material head is in the same plane with the cutting knife surface 34, and at the same time is in the same plane with the side of the injection molded part, and then the adsorption plate 33 is energized to generate magnetic suction to fix the position of the positioning fixture 4, and then the vacuum pump 5 is started, and after the suction force sucks the injection molded part, the cylinder 12 is started to make the telescopic arm 13 extend downward, so that the cutting The knife 2 moves downward to cooperate with the cutting surface 34 to cut off the injection molded part head, and then the injection molded part is replaced to continue the cutting work of the head. The vacuum pump 5 and the suction holes 43 and rubber sleeves 44 set on the positioning fixture 4 are not only convenient for quickly positioning the injection molded part through elastic force and suction, but also can avoid the injection molded part from contacting and scratching the cutting mechanism components during the head cutting process. In addition, the cutting surface 34, suction plate 33 and lifting column 32 set on the positioning table 3 are convenient for the cutting mechanism to adjust and position the injection molded part fixtures with different structures, thereby increasing the application range of the cutting mechanism.

[0029] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A cutting mechanism for injection molded parts, comprising a cutting machine platform (1), the surface of the cutting machine platform (1) is fixedly connected to a frame (11), one end of the frame (11) is provided with a cylinder (12), the output end of the cylinder (12) is provided with a lifting arm (13), characterized in that: A knife seat (21) is fixedly mounted on one end of the lifting arm (13), a cutting knife (2) is provided at the bottom of the knife seat (21), an air pump (5) and a symmetrical lifting column (32) are fixedly mounted on the surface of the cutting machine table (1), one end of the lifting column (32) is fixedly connected to a positioning platform (3), a suction plate (33) is fixedly sleeved on the surface of the positioning platform (3), a positioning fixture (4) is fixed on the surface of the suction plate (33) by electromagnetic adsorption force, a rubber sleeve (44) is provided on one end of the positioning fixture (4), a suction end (51) and an exhaust end (52) are provided on the surface of the air pump (5), one end of the suction end (51) is provided with a connecting pipe (53), and the other end of the connecting pipe (53) is detachably connected to a trachea quick connector (41).

2. The injection molding part stub cutting mechanism according to claim 1, characterized in that: One end of the trachea quick connector (41) is fixedly sleeved on the bottom of the positioning fixture (4), one end of the trachea quick connector (41) is connected to an air suction chamber (42), the inner wall of the air suction chamber (42) is connected to an air suction hole (43), and one end of the air suction hole (43) is connected to a through hole (46).

3. The injection molding part stub cutting mechanism according to claim 2, characterized in that: The through holes (46) are distributed at equal intervals on the surface of the rubber sleeve (44), the spacing of the through holes (46) is the same as the spacing of the air intake holes (43), and the rubber sleeve (44) is made of elastic wear-resistant rubber.

4. The injection molding part stub cutting mechanism according to claim 1, characterized in that: A void hole (31) is provided in the middle of the positioning platform (3), the inner wall of the void hole (31) is in contact with and connected to the surface of the connecting pipe (53), and the void hole (31) is a strip-shaped hole.

5. The injection molding part stub cutting mechanism according to claim 1, characterized in that: The lifting column (32) is a hydraulic telescopic rod or an electric telescopic rod, the adsorption plate (33) is an electromagnetic adsorption plate, and the positioning fixture (4) is made of iron metal.

6. The injection molding part stub cutting mechanism according to claim 1, characterized in that: A cutting surface (34) is provided at one end of the positioning platform (3), and the surface of the cutting surface (34) is in the same plane as the side surface of the cutting knife (2).

7. The injection molding part stub cutting mechanism according to claim 1, characterized in that: One end of the rubber sleeve (44) is provided with a sleeve groove (45).

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