A bonded magnet injection molding mold

Abstract

The utility model relates to the technical field of bonding magnet molding, and in particular to a bonding magnet injection molding mold. The utility model provides such a bonding magnet injection molding mold, including a workbench, a slide rail, a slide plate, a barrel, a discharge pipe, an injection tube and a solenoid valve. At least three slide rails are fixedly connected to the top of the workbench, and a slide plate is slidably connected between all the slide rails. The barrel and the discharge pipe are installed on the slide plate through a support frame. The upper end of the discharge pipe is connected to the lower part of the barrel. The injection tube is connected to the left side of the slide plate. The discharge pipe is connected to the injection tube, so that the bonding magnet inside the discharge pipe enters the injection tube. By setting a cylinder, a push rod and a push block, the cylinder is turned on, and the telescopic rod of the cylinder is controlled to extend, so that the push rod drives the slide plate and the push block to move to the right, and then the mold is opened to push out the bonding magnet in the molding cavity, so as to achieve the purpose of automatic demoulding and improve the injection molding efficiency of the bonding magnet.

Description

Technical Field

[0001] The utility model relates to the technical field of bonding magnet molding, in particular to a bonding magnet injection molding mold. Background Art

[0002] Bonded magnets are magnets made by mixing magnetic powder with certain permanent magnetic properties with a certain proportion of binder and using a certain molding process. Bonded magnets have the characteristics of low cost, high mechanical strength, light weight, and strong machinability. They are widely used in the market. There are many methods for molding bonded magnets, including compression molding, injection molding, extrusion molding, and calendering molding.

[0003] The injection molding steps of bonded magnets mainly include the following processes: first, magnetic powder and binder are added into the barrel of the injection molding machine for mixing to obtain a fluid bonded magnet, then the fluid bonded magnet is injected into the molding cavity of the mold for solidification to obtain a solid bonded magnet, and finally the solid bonded magnet is taken out from the molding cavity of the mold to complete demolding. However, there are still some shortcomings in actual use. For example, when demolding the bonded magnet, a special demolding machine is manually applied or sprayed on the mold to reduce the adhesion between the magnet and the mold, or a vacuum adsorption demolding method is used to suck the bonded magnet out of the molding cavity of the mold. However, no matter which demolding method is used, it is not convenient for rapid demolding of the bonded magnet, which seriously reduces the injection molding efficiency of the bonded magnet.

[0004] Therefore, a bonded magnet injection molding mold is particularly needed to solve the problems existing in the prior art. Utility Model Content

[0005] In order to overcome the disadvantages that when demoulding the bonded magnet, a special demoulding agent is manually applied or sprayed on the mold to reduce the adhesion between the magnet and the mold, or a vacuum adsorption demoulding method is used to suck the bonded magnet out of the molding cavity of the mold. However, no matter which demoulding method is used, it is not convenient to quickly demould the bonded magnet, which seriously reduces the injection molding efficiency of the bonded magnet. The utility model provides a bonded magnet injection molding mold.

[0006] The utility model is realized by the following technical means: a bonded magnet injection molding mold, comprising a workbench, a slide rail, a slide plate, a barrel, a discharge pipe, an injection pipe, a solenoid valve and a mold, at least three slide rails are fixedly connected to the top of the workbench, a slide plate is slidably connected between all the slide rails, a barrel and a discharge pipe are installed on the slide plate through a support frame, the upper end of the discharge pipe is connected to the lower part of the barrel, an injection pipe is connected to the left side of the slide plate, the discharge pipe is connected to the injection pipe, so that the bonded magnet inside the discharge pipe enters the injection pipe, and a controller for discharging is installed inside the discharge end of the injection pipe A solenoid valve is provided, a mold is installed in the middle of the top of the workbench, the left side of the slide is close to the right side of the mold to block its molding cavity, and the discharge end of the injection tube is aligned with the molding cavity of the mold. It also includes a cylinder, a push rod and a push block. A cylinder is installed on the left side of the top of the workbench, a push rod is fixedly connected to the telescopic rod of the cylinder, the push rod is fixedly connected to the slide, the right side of the push rod penetrates into the mold, and is fixedly connected with push blocks with the same number of molding cavities of the mold, the push blocks are aligned with the molding cavities of the mold, and the telescopic rod of the cylinder is controlled to extend or retract, so that the push rod drives the push block to move right or left.

[0007] More preferably, the mold is made of transparent material.

[0008] More preferably, it also includes a motor, a stirring rod, a connecting rod, a pulley assembly and a bevel gear. The motor is installed on the slide, the stirring rod is rotatably connected inside the barrel, the connecting rod is rotatably connected to the upper part of the barrel, a pulley assembly is connected between the output shaft of the motor and the connecting rod, the left end of the connecting rod is fixedly connected to the first bevel gear, the upper end of the stirring rod is fixedly connected to the second bevel gear, the two bevel gears are meshed with each other, and the operation of the motor causes the pulley assembly to drive the connecting rod to rotate, and then the first bevel gear is meshed with the second bevel gear to drive the stirring rod to rotate.

[0009] More preferably, it also includes a first conveying rod and a second conveying rod, the first conveying rod is fixedly connected to the lower end of the stirring rod, the second conveying rod is connected to the output shaft of the motor through a coupling, and the second conveying rod is located inside the discharge pipe.

[0010] More preferably, a collection box is further included. The collection box is placed on the upper part of the workbench. The inner wall of the collection box is provided with a cushion. A square groove is opened on the top of the workbench. The square groove is located on the right side of the mold and above the collection box.

[0011] More preferably, a controller is further included. The controller is installed on the left side of the top of the workbench, and the controller is electrically connected to the motor, the solenoid valve and the cylinder.

[0012] From the above description of the structure of the utility model, it can be seen that the design starting point, concept and advantages of the utility model are: 1. By setting a cylinder, a push rod and a push block, opening the cylinder, controlling the telescopic rod of the cylinder to extend, the push rod drives the slide plate and the push block to move to the right, and then opening the mold to push out the adhesive magnet in the molding cavity, thereby achieving the purpose of automatic demolding and improving the injection molding efficiency of the adhesive magnet.

[0013] 2. By setting up a collection box, the adhesive magnets pushed out from the mold forming cavity can be received, thereby facilitating the centralized collection of the adhesive magnets. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the slide plate, barrel and discharge pipe components of the utility model.

[0016] Figure 3 It is a three-dimensional cross-sectional structural schematic diagram of the barrel, discharge pipe, pulley assembly and other components of the utility model.

[0017] Figure 4 It is a partial cross-sectional structural schematic diagram of components such as the bevel gear, the stirring rod and the first conveying rod of the utility model.

[0018] Figure 5 It is a partial cross-sectional structural schematic diagram of the injection tube, mold and solenoid valve components of the utility model.

[0019] Figure 6 It is a partial cross-sectional structural schematic diagram of the cylinder, push rod, push block and other components of the utility model.

[0020] The markings of the components in the accompanying drawings are as follows: 1. workbench, 101. slide plate, 2. motor, 3. barrel, 301. discharge pipe, 4. pulley assembly, 401. connecting rod, 5. bevel gear, 6. stirring rod, 601. first conveying rod, 7. second conveying rod, 8. injection tube, 9. mold, 10. solenoid valve, 11. cylinder, 12. push rod, 13. push block, 14. collection box, 15. slide rail, 16. controller. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Embodiment: A bonded magnet injection molding mold, see Figure 1-Figure 6 As shown, it includes a workbench 1, a slide rail 15, a slide plate 101, a barrel 3, a discharge pipe 301, an injection tube 8, a solenoid valve 10 and a mold 9. At least three slide rails 15 are connected to the top of the workbench 1 by welding. The slide plate 101 is slidably connected between all the slide rails 15. The barrel 3 and the discharge pipe 301 are connected to the slide plate 101 by bolts. The upper end of the discharge pipe 301 is connected to the lower part of the barrel 3. The injection tube 8 is connected to the left side of the slide plate 101. The discharge pipe 301 is connected to the injection tube 8 so that the bonded magnet inside the discharge pipe 301 enters the injection tube 8. The discharge end of the injection tube 8 is connected to the solenoid valve 10 for discharging the controller 16 by bolts. The middle position on the top of the workbench 1 is connected to the mold 9 by bolts. The left side of the slide plate 101 is close to the right side of the mold 9 to block its molding cavity, and the injection tube 8 is connected to the discharge pipe 301 by bolts. The discharge end of the shooting tube 8 is aligned with the forming cavity of the mold 9. The mold 9 is made of transparent material and also includes a cylinder 11, a push rod 12, a push block 13 and a collection box 14. The cylinder 11 is connected to the left side of the top of the workbench 1 by bolts, and the push rod 12 is connected to the telescopic rod of the cylinder 11 by welding. The push rod 12 is fixedly connected to the slide plate 101. The right side of the push rod 12 penetrates into the mold 9 and is connected to push blocks 13 with the same number of forming cavities of the mold 9 by welding. The push block 13 is aligned with the forming cavity of the mold 9. A collection box 14 is placed on the upper part of the workbench 1. The inner wall of the collection box 14 is provided with a cushion. A square groove is opened on the top of the workbench 1, and the square groove is located on the right side of the mold 9 and above the collection box 14. By controlling the telescopic rod of the cylinder 11 to extend or retract, the push rod 12 drives the push block 13 to move to the right or left.

[0023] See also Figure 1 , Figure 3 and Figure 4 As shown, it also includes a motor 2, a stirring rod 6, a first conveying rod 601, a second conveying rod 7, a connecting rod 401, a pulley assembly 4 and a bevel gear 5. The motor 2 is connected to the slide plate 101 by bolts, and the stirring rod 6 is rotatably connected inside the barrel 3. The lower end of the stirring rod 6 is connected to the first conveying rod 601 by welding. The output shaft of the motor 2 is connected to the second conveying rod 7 through a coupling. The second conveying rod 7 is located inside the discharge pipe 301. The upper part of the barrel 3 is rotatably connected to the connecting rod 401, and the pulley assembly 4 is connected between the output shaft of the motor 2 and the connecting rod 401. The left end of the connecting rod 401 is connected to the first bevel gear 5 by welding, and the upper end of the stirring rod 6 is connected to the second bevel gear 5 by welding. The two bevel gears 5 are meshed with each other. The operation of the motor 2 causes the pulley assembly 4 to drive the connecting rod 401 to rotate, so that the first bevel gear 5 is meshed with the second bevel gear 5 to drive the stirring rod 6 to rotate.

[0024] See also Figure 1As shown, a controller 16 is also included. The left side of the top of the workbench 1 is connected to the controller 16 by bolts. The controller 16 is electrically connected to the motor 2, the solenoid valve 10 and the cylinder 11.

[0025] First, the staff pours a proper amount of magnetic powder and binder into the barrel 3, and then turns on the motor 2 through the controller 16. The output shaft of the motor 2 rotates to drive the pulley assembly 4 to rotate, and the pulley assembly 4 drives the connecting rod 401 to rotate, thereby causing the upper bevel gear 5 to rotate and mesh with the lower bevel gear 5. The lower bevel gear 5 drives the stirring rod 6 to rotate and stir the magnetic powder and the binder, thereby mixing the magnetic powder and the binder to obtain a flowing bonded magnet. The stirring rod 6 also drives the first conveying rod 601 to rotate, and conveys the stirred bonded magnet downward to the discharge pipe 301. At the same time, the output shaft of the motor 2 drives the second conveying rod 7 to rotate, thereby conveying the bonded magnet. It is transported to the left into the injection tube 8, and then the solenoid valve 10 is controlled to open the injection tube 8, so that the adhesive magnet in the injection tube 8 is injected into the molding cavity of the mold 9. After the molding cavity is filled, the solenoid valve 10 is controlled to close the injection tube 8, and then wait for the adhesive magnet in the flowing form to solidify into the adhesive magnet in the solid form. After the solidification is completed, the cylinder 11 is opened, and the telescopic rod of the cylinder 11 is controlled to extend, so that the push rod 12 drives the slide plate 101 and the push block 13 to move to the right, and then the mold 9 is opened to push the adhesive magnet in the molding cavity out, so as to achieve the purpose of automatic demolding and improve the injection molding efficiency of the adhesive magnet. The pushed out adhesive magnet falls into the collection box 14 for centralized collection.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bonded magnet injection molding mold, characterized in that: The invention comprises a workbench (1), a slide rail (15), a slide plate (101), a barrel (3), a discharge pipe (301), an injection pipe (8), a solenoid valve (10) and a mold (9). At least three slide rails (15) are fixedly connected to the top of the workbench (1). The slide plate (101) is slidably connected between all the slide rails (15). The barrel (3) and the discharge pipe (301) are installed on the slide plate (101) through a support frame. The upper end of the discharge pipe (301) is connected to the lower part of the barrel (3). The injection pipe (8) is connected to the left side of the slide plate (101). The discharge pipe (301) is connected to the injection pipe (8) so that the bonded magnet inside the discharge pipe (301) enters the injection pipe (8). A useful magnetic device is installed inside the discharge end of the injection pipe (8). A solenoid valve (10) for discharging materials through a controller (16), a mold (9) is installed at the middle position of the top of the workbench (1), the left side of the slide plate (101) is close to the right side of the mold (9) to block its molding cavity, and the discharging end of the injection tube (8) is aligned with the molding cavity of the mold (9), and also includes a cylinder (11), a push rod (12) and a push block (13). A cylinder (11) is installed on the left side of the top of the workbench (1), and a push rod (12) is fixedly connected to the telescopic rod of the cylinder (11), and the push rod (12) is fixedly connected to the slide plate (101). The right side of the push rod (12) penetrates into the mold (9) and is fixedly connected to push blocks (13) with the same number of molding cavities of the mold (9), and the push block (13) is aligned with the molding cavities of the mold (9).

2. A bonded magnet injection molding mold according to claim 1, characterized in that: The mold (9) is made of transparent material.

3. A bonded magnet injection molding mold according to claim 2, characterized in that: The invention also comprises a motor (2), a stirring rod (6), a connecting rod (401), a pulley assembly (4) and a bevel gear (5); the motor (2) is mounted on the slide plate (101); the stirring rod (6) is rotatably connected inside the barrel (3); the connecting rod (401) is rotatably connected to the upper part of the barrel (3); the pulley assembly (4) is connected between the output shaft of the motor (2) and the connecting rod (401); the left end of the connecting rod (401) is fixedly connected to a first bevel gear (5); the upper end of the stirring rod (6) is fixedly connected to a second bevel gear (5); and the two bevel gears (5) are meshed with each other.

4. A bonded magnet injection molding mold according to claim 3, characterized in that: It also includes a first conveying rod (601) and a second conveying rod (7), wherein the lower end of the stirring rod (6) is fixedly connected to the first conveying rod (601), and the output shaft of the motor (2) is connected to the second conveying rod (7) via a coupling, and the second conveying rod (7) is located inside the discharge pipe (301).

5. A bonded magnet injection molding mold according to claim 4, characterized in that: It also includes a collecting box (14), which is placed on the top of the workbench (1), the inner wall of the collecting box (14) is provided with a soft cushion, and the top of the workbench (1) is provided with a square groove for dropping materials.

6. A bonded magnet injection molding mold according to claim 5, characterized in that: The machine also includes a controller (16), which is installed on the left side of the top of the workbench (1), and is electrically connected to the motor (2), the solenoid valve (10) and the cylinder (11).

Images