Injection molding opening shearing device of injection molding machine

Abstract

The utility model provides an injection molding opening shearing device of an injection molding machine, which comprises a shearing table, a connecting frame arranged at the upper end of the shearing table, an electric push rod I arranged in the connecting frame, a mounting plate arranged at the telescopic end of the electric push rod I, and two upper shearing knives arranged in a sliding groove formed in the mounting plate in a sliding manner, a second electric push rod is arranged at the upper end of the shearing table, a lower shearing tool rest is arranged at the telescopic end of the second electric push rod, the two upper shearing tools and the lower shearing tool rest are installed in a matched mode, a fixing mechanism is arranged in the installation plate, and a quick assembly and disassembly mechanism is arranged in the installation plate. According to the injection molding opening shearing device of the injection molding machine, an operator can quickly replace an abraded or damaged shearing tool through the quick assembly and disassembly mechanism, so that each pouring gate can be accurately and nondestructively sheared, and the consistency and high standard of product quality are maintained.

Description

Technical Field

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

[0002] An injection molding machine is a mechanical device used in the production of plastic products. It is mainly used to heat and melt thermoplastic or thermosetting plastic particles, inject them into the mold cavity under pressure, and open the mold to take out the molded plastic product after cooling and shaping. Injection molding machines are widely used in various industries, such as packaging, automobiles, home appliances, electronics, medical and toys, and other fields of plastic parts manufacturing. The injection molding nozzle shearing device of the injection molding machine is an important part of the injection molding production process. It is mainly responsible for cutting and separating the gate (commonly called "sprue" in the industry) connecting the injection molding part and the runner system before or after the injection molding part is taken out of the mold. The injection molding nozzle shearing device can improve production efficiency, ensure the consistency and quality of the shearing effect, and reduce the potential errors and work-related injury risks caused by manual operation.

[0003] The injection port shearing device of the existing injection molding machine uses two shearing knives that move towards each other to shear the injection port of the injection molded part. The shearing knives are fixed with multiple bolts. The shearing knives of the injection port shearing device of the injection molding machine cannot be replaced quickly. When the shearing knives are worn or damaged, they cannot be replaced quickly, which will cause the machine downtime to be extended and affect the operation efficiency of the entire production line. Utility Model Content

[0004] In view of this, the utility model aims to solve the shortcomings of the prior art and provide an injection port shearing device for an injection molding machine. The quick assembly and disassembly mechanism allows the operator to quickly replace worn or damaged shearing tools, ensuring that each gate can be accurately and non-destructively sheared, thereby maintaining the consistency and high standards of product quality.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: an injection port shearing device of an injection molding machine, including a shearing table, a connecting frame is arranged at the upper end of the shearing table, an electric push rod 1 is arranged inside the connecting frame, a mounting plate is arranged on the telescopic end of the electric push rod 1, two upper shearing knives are slidably arranged in a sliding groove opened inside the mounting plate, an electric push rod 2 is arranged at the upper end of the shearing table, a lower shearing knife holder is arranged on the telescopic end of the electric push rod 2, the two upper shearing knives are installed in cooperation with a lower shearing knife holder, a fixing mechanism is arranged inside the mounting plate, a quick assembly and disassembly mechanism is arranged inside the mounting plate, the fixing mechanism includes two sliding columns slidably arranged inside the mounting plate, a moving plate is arranged between the lower ends of the two sliding columns, and a A fixed plate is installed in cooperation with the moving plate, an elastic support component is arranged between the moving plate and the mounting plate, the elastic support component includes two springs 1 arranged between the moving plate and the mounting plate, the two springs 1 are respectively sleeved on the outer arc surfaces of the corresponding sliding columns, the quick assembly and disassembly mechanism includes four locking columns slidably arranged inside the mounting plate, locking holes are respectively opened on the left and right sides of the two upper shear knives, the four locking columns are respectively plugged into adjacent locking holes, a connecting plate is arranged between two adjacent locking columns in front and behind, handles are arranged on the outer sides of the two connecting plates, an elastic reset component is arranged between the mounting plate and the connecting plate, the elastic reset component includes springs 2 arranged between the mounting plate and the connecting plate, and the four springs 2 are respectively sleeved on the outer arc surfaces of the corresponding locking columns.

[0006] As a further improvement of the utility model, a control panel is arranged on the front side of the shearing table, and the electric push rod 1 and the electric push rod 2 are both electrically connected to the control panel.

[0007] As a further improvement of the utility model, support feet are respectively welded and fixed at the four corners of the lower end of the shearing table.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0009] First, the injection mold that needs to cut the injection port is placed on the fixed plate through an external robot arm, and then the electric push rod 1 and the electric push rod 2 are turned on and run by control, and the telescopic end of the electric push rod 1 drives the upper cutting knife on the mounting plate and the movable plate to move downward, and the movable plate is subjected to the rebound force of the spring 1 and contacts the fixed plate to fix the injection molded part. Then the mounting plate continues to move downward and cooperates with the telescopic end of the electric push rod 2 to drive the lower cutting knife holder to move upward to cut the injection port of the injection molded part. The injection molded part can be quickly fixed and its injection port can be cut.

[0010] Secondly, by pulling the handles on both sides at the same time, the locking column on the connecting plate leaves the locking hole to realize the disassembly of the upper shear knife. At this time, the second spring is in a stretched state. Then the new upper shear knife is slid into the sliding groove so that the locking hole on the upper shear knife corresponds to the position of the locking column. Then the handle is released. At this time, the second spring rebounds quickly to drive the locking column to insert into the locking hole to realize the installation of the upper shear knife. The quick assembly and disassembly mechanism allows the operator to quickly replace worn or damaged shearing tools to ensure that each gate can be accurately and non-destructively sheared, thereby maintaining the consistency and high standards of product quality.

[0011] Thirdly, the operation of the electric push rod 1 and the electric push rod 2 can be quickly adjusted through the control panel, making it more convenient for personnel to operate the shearing device.

[0012] Fourthly, the cutting table can be supported by the supporting legs, so that the shearing device can operate more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a right side cross-sectional structural schematic diagram of the utility model;

[0016] Figure 3 This is a schematic diagram of the mounting plate structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0018] In the figure: 101, shearing table; 102, connecting frame; 103, electric push rod 1; 104, supporting foot; 105, mounting plate; 106, upper shearing knife; 107, electric push rod 2; 108, lower shearing knife frame; 201, fixed plate; 202, spring 1; 203, movable plate; 204, sliding column; 301, connecting plate; 302, locking hole; 303, spring 2; 304, locking column; 401, control panel. DETAILED DESCRIPTION

[0019] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0020] like Figure 1 , 2 As shown in FIG. 3 , a shearing device for an injection molding port of an injection molding machine includes a shearing table 101, a connecting frame 102 is provided at the upper end of the shearing table 101, an electric push rod 103 is provided inside the connecting frame 102, a mounting plate 105 is provided on the telescopic end of the electric push rod 103, two upper shearing knives 106 are slidably provided in a sliding groove provided inside the mounting plate 105, an electric push rod 2 107 is provided at the upper end of the shearing table 101, a lower shearing knife holder 108 is provided on the telescopic end of the electric push rod 2 107, the two upper shearing knives 106 are installed in cooperation with a lower shearing knife holder 108, and the interior of the mounting plate 105 is provided with a mounting plate 105. A fixing mechanism is provided, and a quick assembly and disassembly mechanism is provided inside the mounting plate 105. The fixing mechanism includes two sliding columns 204 slidably arranged inside the mounting plate 105, a movable plate 203 is provided between the lower ends of the two sliding columns 204, a fixing plate 201 which is installed in cooperation with the movable plate 203 is provided at the upper end of the shearing table 101, an elastic support component is provided between the movable plate 203 and the mounting plate 105, and the elastic support component includes two springs 202 arranged between the movable plate 203 and the mounting plate 105, and the two springs 202 are respectively sleeved on the outer arc surfaces of the corresponding sliding columns 204.

[0021] like Figure 1 , 2 As shown in Figures 3 and 4, the quick assembly and disassembly mechanism includes four locking posts 304 slidably arranged inside the mounting plate 105, locking holes 302 are respectively opened on the left and right sides of the two upper shearing knives 106, and the four locking posts 304 are respectively plugged into adjacent locking holes 302. A connecting plate 301 is arranged between two adjacent locking posts 304 in front and behind, and handles are arranged on the outer sides of the two connecting plates 301. An elastic reset component is arranged between the mounting plate 105 and the connecting plate 301, and the elastic reset component includes a spring 2 303 arranged between the mounting plate 105 and the connecting plate 301, and the four springs 2 303 are respectively sleeved on the outer arc surfaces of the corresponding locking posts 304.

[0022] like Figure 1 As shown, a control panel 401 is provided on the front side of the shearing table 101, and the electric push rod 1 103 and the electric push rod 2 107 are both electrically connected to the control panel 401.

[0023] The injection mold that needs to cut the injection port is placed on the fixed plate 201 through an external robot arm, and then the control panel 401 is used to control the electric push rod 103 and the electric push rod 2 107 to start running. The telescopic end of the electric push rod 103 drives the upper cutting knife on the mounting plate 105 and the movable plate 203 to move downward. The movable plate 203 is subjected to the rebound force of the spring 1 202 and contacts the fixed plate 201 to fix the injection molded part. Then the mounting plate 105 continues to move downward to cooperate with the telescopic end of the electric push rod 2 107 to drive the lower cutting knife holder to move upward to cut the injection port of the injection molded part.

[0024] When the worn upper shearing knife 106 needs to be replaced, the handles on both sides are pulled at the same time, so that the locking column 304 on the connecting plate 301 leaves the interior of the locking hole 302, thereby realizing the disassembly of the upper shearing knife 106. At this time, the spring 2 303 is in a stretched state, and then the new upper shearing knife 106 is slid into the interior of the sliding groove so that the locking hole 302 on the upper shearing knife 106 corresponds to the position of the locking column 304, and then the handle is released. At this time, the spring 2 303 rebounds quickly and drives the locking column 304 to insert into the interior of the locking hole 302 to realize the installation of the upper shearing knife 106.

[0025] According to another embodiment of the present invention, Figure 1 As shown, support legs 104 are respectively welded and fixed to the four corners of the lower end of the shearing table 101, and the cutting table can be supported by the support legs 104.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A shearing device for an injection molding machine, comprising a shearing table (101), characterized in that: The upper end of the shearing platform (101) is provided with a connecting frame (102), an electric push rod 1 (103) is provided inside the connecting frame (102), a mounting plate (105) is provided on the telescopic end of the electric push rod 1 (103), two upper shearing knives (106) are slidably provided in a sliding groove provided inside the mounting plate (105), an electric push rod 2 (107) is provided on the upper end of the shearing platform (101), a lower shearing knife holder (108) is provided on the telescopic end of the electric push rod 2 (107), the two upper shearing knives (106) are installed in cooperation with a lower shearing knife holder (108), a fixing mechanism is provided inside the mounting plate (105), and a quick assembly and disassembly mechanism is provided inside the mounting plate (105).

2. The injection port shearing device of an injection molding machine according to claim 1, characterized in that: The fixing mechanism comprises two sliding columns (204) slidably arranged inside the mounting plate (105), a movable plate (203) is arranged between the lower ends of the two sliding columns (204), a fixing plate (201) which is mounted in cooperation with the movable plate (203) is arranged at the upper end of the shearing table (101), and an elastic supporting component is arranged between the movable plate (203) and the mounting plate (105).

3. The injection port shearing device of an injection molding machine according to claim 2, characterized in that: The elastic support assembly comprises two springs (202) arranged between the moving plate (203) and the mounting plate (105), and the two springs (202) are respectively sleeved on the outer arc surfaces of the corresponding sliding columns (204).

4. The injection port shearing device of an injection molding machine according to claim 1, characterized in that: The quick assembly and disassembly mechanism comprises four locking posts (304) slidably arranged inside the mounting plate (105); locking holes (302) are respectively provided on the left and right sides of the two upper shearing knives (106); the four locking posts (304) are respectively plugged into adjacent locking holes (302); a connecting plate (301) is arranged between two adjacent locking posts (304) in front and behind; handles are arranged on the outer sides of the two connecting plates (301); and an elastic reset component is arranged between the mounting plate (105) and the connecting plate (301).

5. The injection port shearing device of an injection molding machine according to claim 4, characterized in that: The elastic reset assembly comprises a second spring (303) arranged between the mounting plate (105) and the connecting plate (301), and four second springs (303) are respectively sleeved on the outer arc surfaces of the corresponding locking columns (304).

6. The injection port shearing device of an injection molding machine according to claim 1, characterized in that: Support legs (104) are respectively welded and fixed to the four corners of the lower end of the shearing platform (101).

7. The injection port shearing device of an injection molding machine according to claim 1, characterized in that: A control panel (401) is provided on the front side of the shearing table (101), and both the electric push rod 1 (103) and the electric push rod 2 (107) are electrically connected to the control panel (401).

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