Ejection device for injection mold

Abstract

The utility model relates to the technical field of injection molds, in particular to an ejection device for an injection mold, which comprises a box body, a lifting component is arranged at one end of the box body, a rotating rod is rotatably connected to one end of the box body, a lead screw I is fixedly connected to one end of the rotating rod, and an upper mold is in threaded connection with one side of the lead screw I; one end of the first lead screw is rotationally connected with a fixed mold, one end of the fixed mold is fixedly connected with the box body, a belt wheel piece is arranged on one side of the first lead screw, and a belt is arranged on one side of the belt wheel piece.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an ejection device for an injection mold. Background Art

[0002] Injection molding is also known as injection molding. Its advantages are fast production speed and high efficiency, automated operation, a wide variety of colors and patterns, shapes from simple to complex, sizes from large to small, and precise product dimensions. The product is easy to update and can be made into parts with complex shapes. The injection molds currently used in the market require manual removal of the molded parts from the mold, which reduces the practicality of the injection mold ejection device.

[0003] In the existing patent application number 202121408558.5, a "mold ejection device for an injection mold" is disclosed, including a box body, the inner wall of the box body is fixedly connected with a fixed slide rail, the inner wall of the fixed slide rail is movably connected with a pulley, the top of the pulley is movably connected with a movable slide plate, the upper surface of the movable slide plate is fixedly connected with a threaded ring sleeve, one side of the threaded ring sleeve is movably connected with a movable rotating rod, one end of the movable rotating rod is movably connected with a movable baffle, and the bottom of the movable baffle is fixedly connected with a movable support rod. However, in the setting of this application, two sets of movable rotating rods are arranged in the middle position of the device and make mirror motion to promote the demolding effect. The installation position of the two sets of movable rotating rods imposes certain limitations on the operator when taking out the model, which is not convenient enough, and it is easy for the model to collide with the movable rotating rod, resulting in damage to the model.

[0004] Therefore, it is necessary to design an ejector device for injection molds that is practical and easy to operate. Utility Model Content

[0005] The utility model aims to provide an ejection device for an injection mold to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ejection device for an injection mold, comprising a box body, a lifting assembly is arranged at one end of the box body, a rotating rod is rotatably connected to one end of the box body, a lead screw is fixedly connected to one end of the rotating rod, an upper mold is threadedly connected to one side of the lead screw, a fixed mold is rotatably connected to one end of the lead screw, one end of the fixed mold is fixedly connected to the box body, a pulley is arranged at one side of the lead screw, a belt is arranged at one side of the pulley, and two groups of pulleys are arranged in a belt connection relationship. One side of the pulley part is fixedly connected with a lead screw 2, one side of the lead screw 2 is threadedly connected to the upper mold, one side of the lead screw 2 is rotatably connected to the fixed mold, one end of the lead screw 2 is fixedly connected with a main bevel tooth, one side of the main bevel tooth is meshingly connected with a movable bevel tooth, one end of the movable bevel tooth is fixedly connected with a bidirectional screw, one side of the bidirectional screw is threadedly connected with an inclined block, two groups of inclined blocks are provided and are mirror-image motion, one side of the inclined block is provided with a push rod, one end of the push rod is fixedly connected with a push plate, and one side of the push plate is slidably connected to the fixed mold.

[0007] According to the above technical solution, a push rod is provided inside the box.

[0008] According to the above technical solution, the lifting assembly includes a base, the inner side of the base is slidably connected to the box body, a motor is provided at one end of the base, a main gear is provided at one end of the motor, one side of the main gear is meshedly connected with a moving gear, one side of the moving gear is threadedly connected with a screw, and one end of the screw is rotatably connected to the box body.

[0009] According to the above technical solution, a pulley is provided at one end of the base.

[0010] According to the above technical solution, one side of the box body is fixedly connected to an electric telescopic rod, one end of the electric telescopic rod is fixedly connected to a rack, one side of the rack is meshed with a gear, one end of the gear is rotatably connected to a fixed block, one end of the fixed block is slidably connected to the rack, one side of the fixed block is fixedly connected to the box body, one side of the gear is fixedly connected to a drive plate, one side of the drive plate is rotatably connected to a protective door, and one end of the protective door is rotatably connected to a slider.

[0011] According to the above technical solution, a slideway 1 is provided on one side of the box body, and one side of the slideway 1 is slidably connected to the upper mold; a slideway 2 is provided on one side of the box body, and one side of the slideway 2 is slidably connected to the slider; a bayonet is provided at one end of the box body, and one end of the bayonet is meshingly connected to the drive plate.

[0012] According to the above technical solution, a handle is provided at one end of the box body, and a screw thread is provided on the outer side of the handle.

[0013] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0014] (1) By setting up a demoulding component, the rotating rod is rotated, the rotating rod drives the lead screw 1, the lead screw 1 drives the pulley part to rotate, the pulley part drives another set of pulley parts to rotate synchronously through the belt, and the other set of pulley parts drives the lead screw 2 to rotate. At this time, the upper mold which is threadedly connected with the lead screw 1 and the lead screw 2 is steadily lifted on the two. At the same time, when the lead screw 2 rotates, it also drives the main bevel gear at one end, the main bevel gear rotates to drive the movable bevel gear, the movable bevel gear drives the bidirectional screw to rotate, and the bidirectional screw drives the two sets of inclined blocks which are threadedly connected with it. The two are mirror motions. When the two are gathered together, they rely on the bevel side to push the top rod to achieve the pushing effect, and drive the push plate to slide in the fixed mold to achieve the effect of pushing the model. This demoulding component is arranged on both sides and the bottom of the box body, which is more convenient for the operator to take out the model, avoids the collision between the model and the device, and avoids the damage of the model;

[0015] (2) By setting up an automatic door assembly, the electric telescopic rod is driven to drive the rack to move, the rack drives the meshing gear on one side to rotate, the gear drives the driving plate on one side to rotate, the driving plate pulls the protective door and rotates it 90 degrees, and the slider at one end of the protective door is also driven to slide on the box body to support the protective door. At this time, the protective door is located on one side of the box body, which is convenient for the operator to work. When the protective door closes the box body, the temperature inside the box body will not be lost, which is convenient for model injection molding, improves work efficiency, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 is a left sectional schematic diagram of a demoulding component;

[0018] Figure 3 is a schematic diagram of the lifting assembly;

[0019] Figure 4 is a schematic diagram of the automatic door assembly;

[0020] In the figure: 1. box body; 2. handle; 3. rotating rod; 4. lead screw 1; 5. fixed mold; 6. upper mold; 7. main bevel gear; 8. moving bevel gear; 9. bidirectional screw; 10. inclined block; 11. ejector rod; 12. push plate; 13. pulley; 14. belt; 15. base; 16. pulley; 17. main gear; 18. moving gear; 19. screw; 20. electric telescopic rod; 21. rack; 22. gear; 23. fixed block; 24. drive plate; 25. protective door; 26. slider; 27. lead screw 2. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4 The utility model provides a technical solution: an ejection device for an injection mold, including a box body 1, a lifting assembly is arranged at one end of the box body 1, a rotating rod 3 is rotatably connected to one end of the box body 1, a lead screw 4 is fixedly connected to one end of the rotating rod 3, an upper mold 6 is threadedly connected to one side of the lead screw 4, a fixed mold 5 is rotatably connected to one end of the lead screw 4, one end of the fixed mold 5 is fixedly connected to the box body 1, a pulley 13 is arranged at one side of the lead screw 4, a belt 14 is arranged at one side of the pulley 13, two groups of pulleys 13 are arranged in a belt connection relationship, and one side of the pulley 13 is fixed It is connected with a lead screw 27, one side of the lead screw 27 is threadedly connected to the upper mold 6, one side of the lead screw 27 is rotatably connected to the fixed mold 5, one end of the lead screw 27 is fixedly connected to the main bevel gear 7, one side of the main bevel gear 7 is meshedly connected to the movable bevel gear 8, one end of the movable bevel gear 8 is fixedly connected to a bidirectional screw 9, one side of the bidirectional screw 9 is threadedly connected to an inclined block 10, the inclined block 10 is provided with two groups and is mirror image motion, one side of the inclined block 10 is provided with a push rod 11, one end of the push rod 11 is fixedly connected to a push plate 12, one side of the push plate 12 is slidably connected to the fixed mold 5, when the model After injection molding and cooling in the fixed mold 5 and the upper mold 6, the operator rotates the rotating rod 3, the rotating rod 3 drives the lead screw 1 4 to rotate, the lead screw 1 4 rotates and drives a group of pulleys 13 to rotate, the pulleys 13 drive another group of pulleys 13 to rotate synchronously through the belt 14, and the other group of pulleys 13 drives the lead screw 2 27 to rotate. At this time, the upper mold 6 which is threadedly connected with the lead screw 1 4 and the lead screw 2 27 rises steadily on the two. At the same time, when the lead screw 2 27 rotates, it also drives the main bevel gear 7 at one end, and the main bevel gear 7 rotates and drives the movable bevel gear 8 engaged on one side. The movable bevel gear 8 drives the bidirectional screw 9 to rotate, and the bidirectional screw 9 drives two groups of inclined blocks 10 threadedly connected thereto. The bottom ends of the two groups of inclined blocks 10 are evenly fitted with the box 1, constraining the inclined blocks 10 to slide smoothly, and the two are mirror image movements. When the two are gathered together, they rely on the beveled edge to push the top rod 11, and drive the push plate 12 to slide in the fixed mold 5 to achieve the effect of pushing the model. This demoulding component is arranged on both sides and the lower side of the box 1, which is convenient for the operator to take out the model, avoids the collision between the model and the device, and avoids damage to the model.

[0023] A push rod is provided on the inner side of the box body 1. When the model is pushed out by the push plate 12, the operator can use the existing technology to drive the push rod on the inner side of the box body 1 to extend and push the model closer to the door frame. At the same time, through the push of the push rod, the operator can observe whether the model has been completely cooled and successfully shaped, thereby preventing the operator from directly touching the model with his hands and affecting the appearance of the model.

[0024] The lifting assembly includes a base 15, the inner side of the base 15 is slidably connected to the box body 1, a motor is arranged at one end of the base 15, a main gear 17 is arranged at one end of the motor, a moving gear 18 is meshedly connected to one side of the main gear 17, a screw 19 is threadedly connected to one side of the moving gear 18, and one end of the screw 19 is rotatably connected to the box body 1. By starting the motor, its driving shaft drives the main gear 17 to rotate, the main gear 17 drives three sets of meshing moving gears 18 on one side to rotate, the moving gear 18 drives the screw 19 threadedly connected on one side to rotate and perform lifting motion. When the screw 19 moves, it drives the box body 1 to move up and down together. The operator can flexibly adjust the height of the box body 1 in this way, which is suitable for operators of different heights and makes it more convenient to use.

[0025] A pulley 16 is provided at one end of the base 15. Through the pulley 16, the position of the device can be flexibly adjusted, which makes its transportation more convenient, saves the labor of the operator, saves time and effort, and at the same time, a braking mechanism is provided on the pulley 16 to roll it and achieve better use effect.

[0026] One side of the box body 1 is fixedly connected to an electric telescopic rod 20, one end of the electric telescopic rod 20 is fixedly connected to a rack 21, one side of the rack 21 is meshed with a gear 22, one end of the gear 22 is rotatably connected to a fixed block 23, one end of the fixed block 23 is slidably connected to the rack 21, one side of the fixed block 23 is fixedly connected to the box body 1, one side of the gear 22 is fixedly connected to a driving plate 24, one side of the driving plate 24 is rotatably connected to a protective door 25, one end of the protective door 25 is rotatably connected to a slider 26, and by driving the electric telescopic rod 20, the telescopic rod drives the gear The rack 21 moves, the rack 21 drives the meshing gear 22 on one side to rotate, the gear 22 drives the driving plate 24 on one side to rotate, the driving plate 24 pulls the protective door 25 and rotates it 90°, and the slider 26 at one end of the protective door 25 is also driven to slide on the box body 1 to support the protective door 25. At this time, the protective door 25 is located on one side of the box body 1, which is convenient for the operator to work. When the protective door 25 closes the box body 1, the temperature inside the box body 1 will not be lost, which is convenient for model injection molding, improves work efficiency, and is more practical.

[0027] A slideway 1 is provided on one side of the box body 1, and one side of the slideway 1 is slidably connected to the upper mold 6. A slideway 2 is provided on one side of the box body 1, and one side of the slideway 2 is slidably connected to the slider 26. A bayonet is provided at one end of the box body 1, and one end of the bayonet is meshed with the driving plate 24. Both sides of the slideway 1 are fitted with the upper mold 6. When the upper mold 6 is driven by the lead screw 1 4 and the lead screw 2 27, it can be moved up and down by the constraint of the slideway 1. Similarly, when the protective door 25 is pulled and rotated by the driving plate 24, the slider 26 is constrained by the slideway 2 and will not rotate, thereby providing support for the protective door 25. When the protective door 25 closes the box body 1, the driving plate 24 is embedded in the bayonet of the box body 1 and will not affect the use.

[0028] A handle 2 is provided at one end of the box body 1, and a screw pattern is provided on the outer side of the handle 2. The handle 2 is convenient for the operator to lift the device and store it in a higher position. The screw pattern is provided on the handle 2 to increase the friction with the operator's hand to prevent slipping and causing losses.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An ejection device for an injection mold, comprising a housing (1), characterized in that: A lifting assembly is provided at one end of the box body (1), a rotating rod (3) is rotatably connected to one end of the box body (1), one end of the rotating rod (3) is fixedly connected to a lead screw (4), one side of the lead screw (4) is threadedly connected to an upper mold (6), one end of the lead screw (4) is rotatably connected to a fixed mold (5), one end of the fixed mold (5) is fixedly connected to the box body (1), one side of the lead screw (4) is provided with a pulley (13), one side of the pulley (13) is provided with a belt (14), the pulley (13) is provided with two groups and is in a belt connection relationship, one side of the pulley (13) is fixedly connected to a lead screw (27), the lead screw (27) One side of the screw (27) is threadedly connected to the upper mold (6), one side of the lead screw (27) is rotatably connected to the fixed mold (5), one end of the lead screw (27) is fixedly connected to a main bevel gear (7), one side of the main bevel gear (7) is meshingly connected to a movable bevel gear (8), one end of the movable bevel gear (8) is fixedly connected to a bidirectional screw (9), one side of the bidirectional screw (9) is threadedly connected to an inclined block (10), two groups of inclined blocks (10) are provided and are mirror-image motions, one side of the inclined block (10) is provided with a push rod (11), one end of the push rod (11) is fixedly connected to a push plate (12), and one side of the push plate (12) is slidably connected to the fixed mold (5).

2. The ejector device for an injection mold according to claim 1, characterized in that: A push rod is arranged inside the box body (1).

3. The ejector device for an injection mold according to claim 1, characterized in that: The lifting assembly comprises a base (15), the inner side of the base (15) is slidably connected to the box (1), one end of the base (15) is provided with a motor, one end of the motor is provided with a main gear (17), one side of the main gear (17) is meshingly connected with a moving gear (18), one side of the moving gear (18) is threadedly connected with a screw rod (19), and one end of the screw rod (19) is rotatably connected to the box (1).

4. The ejector device for an injection mold according to claim 3, characterized in that: A pulley member (16) is provided at one end of the base (15).

5. The ejector device for an injection mold according to claim 3, characterized in that: One side of the box body (1) is fixedly connected to an electric telescopic rod (20), one end of the electric telescopic rod (20) is fixedly connected to a rack (21), one side of the rack (21) is meshingly connected to a gear (22), one end of the gear (22) is rotatably connected to a fixed block (23), one end of the fixed block (23) is slidably connected to the rack (21), one side of the fixed block (23) is fixedly connected to the box body (1), one side of the gear (22) is fixedly connected to a drive plate (24), one side of the drive plate (24) is rotatably connected to a protective door (25), and one end of the protective door (25) is rotatably connected to a slider (26).

6. The ejector device for an injection mold according to claim 5, characterized in that: A slideway 1 is provided on one side of the box body (1), one side of the slideway 1 is slidably connected to the upper mold (6), a slideway 2 is provided on one side of the box body (1), one side of the slideway 2 is slidably connected to the slider (26), and a bayonet is provided at one end of the box body (1), one end of the bayonet is meshingly connected to the drive plate (24).

7. The ejector device for an injection mold according to claim 6, characterized in that: A handle (2) is provided at one end of the box body (1), and a spiral pattern is provided on the outer side of the handle (2).

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