A feeding mechanism for injection molding machine

Abstract

The utility model relates to the technical field of injection molding machines, specifically a feeding mechanism for injection molding machines, mainly including a bottom plate; an injection molding machine body, arranged on the top of the bottom plate; a storage box, arranged above the injection molding machine body; a weighing box, arranged at the bottom of the storage box; a weighing frame, arranged in the weighing box; two baffles, evenly distributed at the bottom of the weighing frame; a mounting hole, opened on the weighing frame; a hydraulic rod, arranged in the mounting hole; a pressure sensor, arranged in the weighing frame. The feeding mechanism for injection molding machines of the present application can ensure the accuracy of the quantity and proportion of each feeding through precise metering, thereby improving the product quality and facilitating subsequent use or sale. The molded products are stored in the placement frame, and the extrusion plate is squeezed by the spring, so that the molded products can be placed here more stably for cooling to avoid being contaminated with more dust.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a feeding mechanism for an injection molding machine. Background Art

[0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It is divided into vertical, horizontal, and all-electric types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it ejected and fill the mold cavity.

[0003] However, when loading materials on traditional injection molding machines currently in use, the plastic particles are often placed in a storage box. When the materials need to be added, the valve of the delivery pipe is opened to transport the materials to the injection molding machine. In this process, it is impossible to accurately control the proportion of material delivery, which will lead to poor quality of the items in subsequent molding. Utility Model Content

[0004] The purpose of the utility model is to provide a feeding mechanism for an injection molding machine to solve the problems raised by the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A feeding mechanism for an injection molding machine comprises: a base plate; an injection molding machine body, arranged on the top of the base plate; a storage box, arranged above the injection molding machine body, and a support column is connected between the storage box and the base plate; a weighing box, arranged at the bottom of the storage box; a weighing frame, arranged in the weighing box; two baffles, evenly distributed at the bottom of the weighing frame; a mounting hole, opened on the weighing frame; a hydraulic rod, arranged in the mounting hole; and a pressure sensor, arranged in the weighing frame.

[0007] Preferably, four sliding grooves are opened on the top surface of the bottom plate, a support plate is arranged above the bottom plate, a sliding block is fixed to the bottom surface of the support plate, the sliding block is slidably arranged with the sliding grooves, and a placement frame is fixed to the top surface of the support plate.

[0008] Preferably, a plurality of springs are fixed on both sides of the inner wall of the placement frame, and two extrusion plates are arranged inside the placement frame. The extrusion plates are made of rubber material, and one side of the extrusion plates is fixedly connected to one end of the spring.

[0009] Preferably, a plurality of limiting holes are respectively opened on both sides of the placement frame, and a limiting column is slidably arranged inside the limiting hole, one end of the limiting column is fixedly connected to one side of the extrusion plate, and the spring is wrapped around the limiting column.

[0010] Preferably, electric push rods are fixed on the four sides of the outer walls of the storage box and the weighing box, respectively, and the telescopic ends of the electric push rods pass through the storage box and the weighing box respectively. Push plates are fixed to the telescopic ends of the electric push rods on the left and right sides, and scrapers are fixed to the telescopic ends of the electric push rods on the front and rear sides.

[0011] Preferably, two material guide plates are provided inside the storage box, and heating sheets are provided inside the material guide plates.

[0012] Preferably, a plurality of delay columns are fixed to the top surface of the guide plate.

[0013] Preferably, the baffle is rotatably connected to the bottom surface of the weighing frame through a hinge, the telescopic end of the hydraulic rod is hinged to the top surface of the baffle, and the pressure sensor is electrically connected to an external control device.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: heat is generated by the heating sheet, so that the plastic particles can be kept in a dry state before entering the injection molding machine body, so that the injection molding work is smoother and moisture is avoided to affect the molding. When the plastic particles enter the weighing box, the weight is sensed by the pressure sensor. When the proportion of an object molding is reached, the telescopic end of the hydraulic rod moves downward to drive the baffle to expand, so that the plastic particles enter the injection molding machine body through the connecting pipe under the weighing box. Therefore, through precise measurement, the quantity and proportion of each loading can be ensured to be accurate, thereby improving the product quality and facilitating subsequent use or sale. After molding, the molded product is stored in the placement frame, and then the extrusion plate is squeezed by the spring, so that the molded product can be placed here more stably for cooling to avoid being contaminated with more dust. By pulling the support plate, the sliding block is moved in the sliding groove, so the entire product can be disassembled and taken, which is conducive to moving the molded object to the specified position, avoiding burns to the staff and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the weighing box of the utility model;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the support plate of the utility model.

[0019] In the figure: 1. bottom plate; 2. injection molding machine body; 3. storage box; 4. support column; 5. weighing box; 6. weighing frame; 7. baffle; 8. mounting hole; 9. hydraulic rod; 10. pressure sensor; 11. sliding groove; 12. support plate; 13. sliding block; 14. placement frame; 15. spring; 16. extrusion plate; 17. limit hole; 18. limit column; 19. electric push rod; 20. push plate; 21. guide plate; 22. heating plate; 23. delay column; 24. scraper. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0022] Example 1: Please refer to Figure 1-Figure 4 The utility model provides a technical solution: a feeding mechanism for an injection molding machine, comprising: a bottom plate 1; an injection molding machine body 2, arranged on the top of the bottom plate 1; a storage box 3, arranged above the injection molding machine body 2, and a support column 4 is connected between the storage box 3 and the bottom plate 1; a conveying pipe is connected and fixed to the bottom of the storage box 3, and an electric valve is arranged in the conveying pipe; a weighing box 5 is arranged at the bottom of the storage box 3; a weighing frame 6 is arranged in the weighing box 5; two baffles 7 are arranged, which are evenly distributed at the bottom of the weighing frame 6; a mounting hole 8 is opened on the weighing frame 6; a hydraulic rod 9 is arranged in the mounting hole 8; a pressure sensor 10 is arranged in the weighing frame 6.

[0023] When the plastic particles enter the weighing box 5, the weight is sensed by the pressure sensor 10. When the weight reaches a certain proportion for forming an object, the telescopic end of the hydraulic rod 9 moves downward to drive the baffle 7 to expand, thereby allowing the plastic particles to enter the injection molding machine body 2 through the connecting pipe under the weighing box 5. Therefore, through precise measurement, the quantity and proportion of each loading can be ensured to be accurate, thereby improving product quality and facilitating subsequent use or sale.

[0024] Embodiment 2: Figure 1-Figure 4As shown, a feeding mechanism for an injection molding machine disclosed in Example 2 of the utility model has a structure that is basically the same as that in Example 1, except that four sliding grooves 11 are provided on the top surface of the bottom plate 1, a support plate 12 is provided above the bottom plate 1, a sliding block 13 is fixed to the bottom surface of the support plate 12, the sliding block 13 is slidably arranged with the sliding groove 11, a placement frame 14 is fixed to the top surface of the support plate 12, a plurality of springs 15 are fixed on both sides of the inner wall of the placement frame 14, two extrusion plates 16 are provided inside the placement frame 14, the extrusion plates 16 are made of rubber, one side of the extrusion plates 16 is fixedly connected to one end of the spring 15, a plurality of limiting holes 17 are provided on both sides of the placement frame 14, a limiting column 18 is slidably arranged inside the limiting hole 17, one end of the limiting column 18 is fixedly connected to one side of the extrusion plate 16, and the spring 15 surrounds the limiting column 18.

[0025] After forming, the support plate 12 is pulled to move the sliding block 13 in the sliding groove 11, so the whole can be disassembled and taken out, which is beneficial for quickly taking the formed object out of the die, and is also beneficial for replacing different types of forming molds, which improves practicality. The formed product is stored in the placement frame 14, and then the extrusion plate 16 is squeezed by the spring 15, so that the formed product can be placed here more stably for cooling to avoid being contaminated by too much dust. The support plate 12 is pulled to move the sliding block 13 in the sliding groove 11, so the whole can be disassembled and taken out, which is beneficial for moving the formed object to the specified position, avoiding burns to the staff, and improving safety. The limiting hole 17 and the limiting column 18 can prevent the spring 15 from deviating during extrusion, making the support more firm and stable.

[0026] Embodiment 3: Figure 1-Figure 4 As shown, a feeding mechanism for an injection molding machine disclosed in Example 3 of the utility model has a structure that is basically the same as that in Example 2, except that electric push rods 19 are fixed to the four sides of the outer walls of the storage box 3 and the weighing box 5, respectively, and the telescopic ends of the electric push rods 19 penetrate the storage box 3 and the weighing box 5 respectively, and push plates 20 are fixed to the telescopic ends of the electric push rods 19 on the left and right sides, and scrapers 24 are fixed to the telescopic ends of the electric push rods 19 on the front and rear sides, and the length of the scraper 24 is the same as the diameter of the conveying pipe, two guide plates 21 are arranged inside the storage box 3, and a heating plate 22 is arranged inside the guide plate 21, and a plurality of delay columns 23 are fixed to the top surface of the guide plate 21, and the baffle 7 is rotatably connected to the bottom surface of the weighing frame 6 by a hinge, and the telescopic end of the hydraulic rod 9 is hinged to the top surface of the baffle 7, and the pressure sensor 10 is electrically connected to the external control device.

[0027] The push plate 20 is pushed to move by the telescopic ends of the electric push rods 19 on the left and right sides, so that the materials can be gathered. The push plate 20 will fit with the surface of the scraper 24 during the movement, so that the materials are gathered more tightly. At this time, the scraper 24 pushes the materials to the conveying pipe mouth again, thereby avoiding material waste and saving production costs. The guide plate 21 can make the plastic particles flow and enter the conveying pipe below, and the heat is generated by the heating plate 22, so that the plastic particles can be kept dry before entering the injection molding machine body 2, so that the injection molding work is smoother and moisture is avoided to affect the molding. The blocking of the delay column 23 can slow down the flow speed, which helps to make the drying more comprehensive and sufficient.

[0028] The present scheme is specifically as follows: in use, the staff first places the injection molding material used by the injection molding machine body 2 into the storage box 3. When placing, the guide plate 21 can make the plastic particles flow and then enter the conveying pipe below, and the heat is generated by the heating plate 22, so that the plastic particles can be kept dry before entering the injection molding machine body 2, so that the injection molding work is smoother and moisture is avoided to affect the molding. When the plastic particles enter the weighing box 5, the weight is sensed by the pressure sensor 10. When the proportion of an object molding is reached, the telescopic end of the hydraulic rod 9 moves downward to drive the baffle 7 to expand, so that the plastic particles pass through the weighing box 5. The connecting pipe below enters into the injection molding machine body 2, so through precise measurement, the quantity and proportion of each loading can be ensured to be accurate, thereby improving product quality and facilitating subsequent use or sale. After molding, the molded product is stored in the placement frame 14, and then the extrusion plate 16 is squeezed by the spring 15, so that the molded product can be placed here more stably for cooling to avoid being contaminated by too much dust. By pulling the support plate 12, the sliding block 13 is moved in the sliding groove 11, so that the entire body can be disassembled and taken, which is conducive to moving the molded object to the specified position, avoiding burns to the staff and improving safety.

[0029] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary; under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0030] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A feeding mechanism for an injection molding machine, characterized in that: include: Bottom plate (1); An injection molding machine body (2) is arranged on the top of the base plate (1); A storage box (3) is arranged above the injection molding machine body (2), and a support column (4) is connected between the storage box (3) and the bottom plate (1); A weighing box (5) is arranged at the bottom of the storage box (3); A weighing frame (6) is arranged in the weighing box (5); Two baffles (7) are provided and are evenly distributed at the bottom of the weighing frame (6); A mounting hole (8) is provided on the weighing frame (6); A hydraulic rod (9) is arranged in the mounting hole (8); A pressure sensor (10) is arranged in the weighing frame (6).

2. A feeding mechanism for an injection molding machine according to claim 1, characterized in that: The top surface of the bottom plate (1) is provided with four sliding grooves (11); a support plate (12) is arranged above the bottom plate (1); a sliding block (13) is fixed to the bottom surface of the support plate (12); the sliding block (13) is slidably arranged with the sliding grooves (11); and a placement frame (14) is fixed to the top surface of the support plate (12).

3. A feeding mechanism for an injection molding machine according to claim 2, characterized in that: A plurality of springs (15) are fixed on both sides of the inner wall of the placement frame (14), and two extrusion plates (16) are arranged inside the placement frame (14). The extrusion plates (16) are made of rubber material, and one side of the extrusion plates (16) is fixedly connected to one end of the spring (15).

4. A feeding mechanism for an injection molding machine according to claim 3, characterized in that: A plurality of limiting holes (17) are respectively provided on both sides of the placement frame (14), and a limiting column (18) is slidably arranged inside the limiting hole (17), one end of the limiting column (18) is fixedly connected to one side of the extrusion plate (16), and the spring (15) surrounds the limiting column (18).

5. A feeding mechanism for an injection molding machine according to claim 1, characterized in that: Electric push rods (19) are fixed to the four sides of the outer walls of the storage box (3) and the weighing box (5), respectively. The telescopic ends of the electric push rods (19) penetrate the storage box (3) and the weighing box (5), respectively. Push plates (20) are fixed to the telescopic ends of the electric push rods (19) on the left and right sides, and scrapers (24) are fixed to the telescopic ends of the electric push rods (19) on the front and rear sides.

6. A feeding mechanism for an injection molding machine according to claim 1, characterized in that: Two material guide plates (21) are arranged inside the storage box (3), and a heating sheet (22) is arranged inside the material guide plates (21).

7. A feeding mechanism for an injection molding machine according to claim 6, characterized in that: A plurality of delay columns (23) are fixed on the top surface of the material guide plate (21).

8. A feeding mechanism for an injection molding machine according to claim 1, characterized in that: The baffle (7) is rotatably connected to the bottom surface of the weighing frame (6) through a hinge, the telescopic end of the hydraulic rod (9) is hinged to the top surface of the baffle (7), and the pressure sensor (10) is electrically connected to an external control device.

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