Material taking device for injection molding machine

Abstract

The utility model discloses a material taking device for an injection molding machine, which comprises a support frame, the top of the support frame is provided with an electric push rod, the bottom of the electric push rod is fixedly provided with a mounting plate, the bottom of the mounting plate is provided with four slideways, the four slideways are arranged in a circumferential array mode, and clamping plates are arranged in the four slideways in a sliding mode. Inclined planes are arranged at the bottoms of the clamping plates, the inclined planes are in sliding fit with the injection molding part, a connecting column is fixedly arranged at the center of the mounting plate, a first spring is fixedly arranged between the connecting column and the corresponding clamping plate, four first sleeves are fixedly arranged on the mounting plate, and sliding rods are arranged in the first sleeves in a sliding mode; second springs are fixedly arranged between the sliding rods and the first sleeves, second sleeves are fixedly arranged on one sides of the sliding rods, magnet blocks are slidably arranged in the second sleeves, electromagnets are fixedly arranged on the sliding rods, and the electromagnets drive the magnet blocks to extrude the corresponding clamping plates. And the magnet blocks rapidly abut against the clamping plates under the repulsive force effect of the electromagnets, and the time of the clamping process of the injection molding part is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a material taking device for injection molding machines. Background Art

[0002] Injection molding machine is also called injection molding machine or injection machine. It 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 eject and fill the mold cavity. After the plastic products in the injection molding machine are molded, they need to be taken out, so the injection molding machine reclaimer is needed.

[0003] A Chinese patent document with publication number CN214239387U discloses a material taking device for an injection molding machine. By starting a first motor, the output shaft of the first motor drives the first screw to rotate. The first screw cooperates with the thread of the sleeve plate and drives the sleeve plate to move horizontally under the guiding action of the base plate. Then, the push rod motor is started. The output end of the push rod motor adjusts the vertical position of the box body, thereby moving the clamping plate into the injection molding machine. Then, by starting a second motor, the output shaft of the second motor drives the worm to rotate. The worm drives the worm wheel to rotate slowly. The worm wheel drives the vertical shaft to rotate. The vertical shaft drives the second bevel gear to rotate. The second bevel gear drives four first bevel gears to rotate synchronously. The four first bevel gears respectively drive the corresponding second screws to rotate. The four second screws respectively cooperate with the thread of the corresponding slide plate and drive the four slide plates to move toward the side close to the injection molded product under the guiding action of the limit rod. The four slide plates respectively drive the four clamping plates to move toward the side close to the injection molded product through the corresponding connecting springs and under the guiding action of the guide rod, thereby clamping and fixing the four sides of the injection molded product.

[0004] The shortcoming of the above-mentioned disclosed solution is that four second screws are required to rotate to drive the corresponding clamping plates to move toward the side close to the injection molded product. Therefore, the clamping plates need to wait for a certain period of time while moving toward the side close to the injection molded product and contacting the injection molded product, thereby reducing the rate of clamping the injection molded product and further reducing the work efficiency of removing the injection molded product. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a material taking device for an injection molding machine. An electromagnet is fixedly arranged on a slide rod, and the electromagnet drives a magnet block to squeeze a corresponding clamping plate, which can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a material taking device for an injection molding machine, comprising a support frame, an electric push rod is arranged on the top of the support frame, a mounting plate is fixedly arranged on the bottom of the electric push rod, four slideways are opened at the bottom of the mounting plate, the four slideways are arranged in a circumferential array, clamping plates are slidably arranged in the four slides, an inclined surface is arranged at the bottom of the clamping plate, the inclined surface slides with the injection molded part, a connecting column is fixedly arranged at the center of the mounting plate, a first spring is fixedly arranged between the connecting column and the corresponding clamping plate, four first sleeves are fixedly arranged on the mounting plate, a sliding rod is slidably arranged in the first sleeve, a second spring is fixedly arranged between the sliding rod and the first sleeve, a second sleeve is fixedly arranged on the side opposite to the sliding rod and the corresponding clamping plate, a magnet block is slidably arranged in the second sleeve, an electromagnet is fixedly arranged on the sliding rod, and the electromagnet drives the magnet block to squeeze the corresponding clamping plate.

[0007] Furthermore, a guide groove is provided on the top of the support frame, a threaded screw is rotatably arranged in the guide groove, a motor is fixedly arranged on one side of the support frame, the output shaft of the motor is coaxially and fixedly connected with the threaded screw, a slider is slidably arranged in the guide groove, the threaded screw passes through the slider and is threadedly connected to the slider, and the bottom of the slider is fixedly connected to the electric push rod.

[0008] Furthermore, a second limit block is fixedly provided on the clamping plate, a third spring is fixedly provided between the magnet block and the inner wall of the second sleeve, and an inclined surface is provided on the magnet block and the end of the magnet block away from the slide rod, and the inclined surface is slidably matched with the second limit block.

[0009] Furthermore, a first limit block is fixedly disposed in the slideway, and the first limit block is located between the clamping plate and the connecting column.

[0010] Furthermore, the cross section of the slideway is T-shaped, the slideway is matched with the top of the clamping plate, and the top of the clamping plate is slidably arranged in the slideway.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] A magnet block is slidably arranged in the second sleeve, and an electromagnet is fixedly arranged on the slide bar, and the electromagnet drives the magnet block to squeeze the corresponding clamping plate. When clamping the injection molded part, the electric push rod is started to drive the mounting plate to move downward, and the mounting plate drives the first sleeve and the clamping plate to move downward, and the four clamping plates move downward to contact the corresponding side surfaces of the injection molded part respectively. The electromagnet is connected to the power supply, so that the magnetism of the electromagnet and the magnet block have the same pole. According to the principle that the same poles of magnets repel each other, the magnet block supports the clamping plate under the repulsive force of the electromagnet, and applies an extrusion force to the clamping plate in the horizontal direction, so that the four clamping plates clamp and fix the injection molded part. After the four clamping plates contact the corresponding side surfaces of the injection molded part respectively, the magnet block quickly supports the clamping plate under the repulsive force of the electromagnet according to the principle that the same poles of magnets repel each other, so that the four clamping plates form a clamping effect on the injection molded part, thereby saving the time of the four clamping plates clamping the injection molded part, and improving the work efficiency when taking out the injection molded product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0014] Figure 2 It is a cross-sectional view of the mounting plate of the structure of the utility model;

[0015] Figure 3 This is a three-dimensional diagram of the installation plate of the structure of the utility model when viewed from above.

[0016] In the figure: 1. support frame; 2. motor; 3. slider; 4. threaded screw; 5. electric push rod; 6. mounting plate; 601. first limit block; 602. slideway; 603. connecting column; 7. clamping plate; 8. first sleeve; 9. second sleeve; 10. electromagnet; 11. slide rod; 12. injection molded part; 13. second spring; 14. first spring; 15. third spring; 16. second limit block; 17. magnet block. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-Figure 3The utility model provides a technical solution: a material taking device for an injection molding machine, comprising a support frame 1, a guide groove is provided on the top of the support frame 1, and a threaded screw 4 is rotatably installed in the guide groove along the length direction of the gas. A motor 2 is fixedly installed on one side of the top of the support frame 1, and the output shaft of the motor 2 passes through the support frame 1 and is coaxially fixedly installed with the threaded screw 4. A slider 3 is slidably installed in the guide groove, the threaded screw 4 passes through the slider 3 and is threadedly connected to the slider 3, and an electric push rod 5 is fixedly installed at the bottom of the slider 3, and the electric push rod 5 is arranged vertically. At the same time, moving wheels can be evenly fixedly installed at the bottom of the support frame 1 to facilitate the movement of the entire device.

[0019] The bottom of the output rod of the electric push rod 5 is fixedly mounted with a mounting plate 6, and the bottom of the mounting plate 6 is provided with four slideways 602, which are arranged in a circumferential array. A clamping plate 7 is slidably mounted in each of the four slideways 602, and the cross section of the slideway 602 is T-shaped. The slideway 602 is adapted to the top of the clamping plate 7, and the top of the clamping plate 7 is slidably mounted in the slideway 602. The T-shaped slideway 602 has a limited sliding effect on the clamping plate 7, preventing the clamping plate 7 from detaching from the slideway 602.

[0020] The bottom of the clamping plate 7 is provided with an inclined surface, which is slidably matched with the injection molded part 12. The injection molded part 12 is an injection molded finished product, and its shape is a cube. A connecting column 603 is fixedly installed at the center of the bottom of the mounting plate 6. The connecting column 603 is a regular quadrangular prism, and the four faces of the connecting column 603 correspond to the corresponding slideway 602. A first spring 14 is fixedly installed between the four faces of the connecting column 603 and the corresponding top of the clamping plate 7. A first limit block 601 is fixedly installed in the slideway 602, and the first limit block 601 is located between the clamping plate 7 and the connecting column 603. The first limit block 601 limits the clamping plate 7 to ensure that the inclined surface at the bottom of the clamping plate 7 can be aligned with the ridgeline at the top of the injection molded part 12.

[0021] Four first sleeves 8 are fixedly mounted on the mounting plate 6, and the four first sleeves 8 correspond to the four slideways 602 one by one. The first sleeve 8 is fixedly mounted at one end of the corresponding slideway 602. The first sleeve 8 is arranged vertically. A slide bar 11 is slidably mounted in the first sleeve 8, and a second spring 13 is fixedly mounted between the slide bar 11 and the first sleeve 8. A second sleeve 9 is horizontally fixedly mounted on the side of the slide bar 11 opposite to the corresponding clamping plate 7, and a magnet block 17 is slidably mounted in the second sleeve 9. An electromagnet 10 is fixedly mounted on the side of the slide bar 11 away from the clamping plate 7, and the electromagnet 10 drives the magnet block 17 to squeeze the corresponding clamping plate 7.

[0022] A second stopper 16 is fixedly mounted on one side of the clamping plate 7 close to the slide bar 11, and a third spring 15 is fixedly mounted between the magnet block 17 and the inner wall of the second sleeve 9. The magnet block 17 and the end of the magnet block 17 away from the slide bar 11 are provided with an inclined surface, which is slidably matched with the second stopper 16.

[0023] The working principle of a material taking device for an injection molding machine provided by the utility model is as follows:

[0024] When the finished injection molded part 12 is taken out from the injection molding machine, the motor 2 is started, the motor 2 drives the threaded screw 4 to rotate, the threaded screw 4 drives the slider 3 to slide along the guide groove, and the slider 3 drives the electric push rod 5 to move horizontally, thereby adjusting the horizontal position of the mounting plate 6 so that the clamping space formed by the four clamping plates 7 is aligned with the injection molded part 12.

[0025] The electric push rod 5 is started, and the electric push rod 5 drives the mounting plate 6 to move downward, and the mounting plate 6 drives the first sleeve 8 and the clamping plate 7 to move downward. When the slide bar 11 in the first sleeve 8 contacts the upper surface of the injection molding machine, the mounting plate 6 continues to move downward, so that the slide bar 11 slides upward in the first sleeve 8. At this time, the clamping plate 7 is moved downward until the inclined surface at the bottom of the clamping plate 7 contacts the ridgeline at the top of the injection molding part 12, and then the clamping plate 7 continues to move downward, and the four clamping plates 7 move downward and contact the corresponding side surfaces of the injection molding part 12 respectively. At the same time, under the sliding cooperation between the inclined surface at the bottom of the clamping plate 7 and the ridgeline at the top of the injection molding part 12, the top of the clamping plate 7 slides in the direction of the slide bar 11 on the slideway 602, and the first spring 14 is stretched at this time.

[0026] At the same time, the clamping plate 7 moves downward and drives the second limit block 16 to move downward. Under the sliding cooperation between the bottom surface of the second limit block 16 and the inclined surface of the magnet block 17, the magnet block 17 slides in the second sleeve 9 toward the direction of the slide bar 11, and the third spring 15 is compressed. When the second limit block 16 moves downward and disengages from the magnet block 17, the magnet block 17 is reset under the action of the reset force of the third spring 15, and the reset of the magnet block 17 makes the upper end surface of the second limit block 16 contact the lower end surface of the magnet block 17. When the four clamping plates 7 drive the injection molded part 12 to move upward, it can prevent the slide bar 11 from moving downward under the action of the second spring 13, so that the magnet block 17 is separated from the corresponding clamping plate 7, and does not play the role of applying force to the clamping plate 7 in the flat direction. At this time, since the clamping plate 7 slides a certain distance in the direction of the slide bar 11, the third spring 15 is still in a compressed state after the magnet block 17 is reset.

[0027] The electromagnet 10 is powered on, so that the magnetism of the electromagnet 10 and the magnet block 17 have the same polarity. According to the principle that the same poles repel each other, the magnet block 17 presses against the clamping plate 7 under the action of the reset force of the third spring 15 and the repulsive force of the electromagnet 10, and exerts a squeezing force on the clamping plate 7 in the horizontal direction, so that the four clamping plates 7 clamp and fix the injection molded part 12. At the same time, the reset force of the first spring 14 will also exert a pulling force on the clamping plate 7, further strengthening the clamping force of the clamping plate 7 on the injection molded part 12.

[0028] Then start the electric push rod 5, which drives the clamping plate 7 to move upward, so as to take the injection molded part 12 out of the injection molding machine. When the injection molded part 12 needs to be removed, the opposite current is passed through the electromagnet 10. According to the characteristic of opposite poles attracting each other, the electromagnet 10 adsorbs the magnet block 17 and slides into the second sleeve 9, thereby releasing the fastening restriction on the clamping plate 7. Then the injection molded part 12 is removed from between the four clamping plates 7. At this time, the clamping plate 7 moves along the slide 602 under the action of the first spring 14 to contact the first limit block 601, ensuring that the inclined surface at the bottom of the clamping plate 7 can just contact the top edge of the injection molded part 12 when it is used next time.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A material taking device for an injection molding machine, comprising a support frame (1), characterized in that: The top of the support frame (1) is provided with an electric push rod (5), the bottom of the electric push rod (5) is fixedly provided with a mounting plate (6), the bottom of the mounting plate (6) is provided with four slideways (602), the four slideways (602) are arranged in a circumferential array, and a clamping plate (7) is slidably arranged in each of the four slideways (602), the bottom of the clamping plate (7) is provided with an inclined surface, and the inclined surface is slidably matched with the injection molded part (12), a connecting column (603) is fixedly provided at the center of the mounting plate (6), and a connecting column (603) is fixedly provided between the connecting column (603) and the corresponding clamping plate (7). A first spring (14), four first sleeves (8) are fixedly arranged on the mounting plate (6), a slide bar (11) is slidably arranged in the first sleeve (8), a second spring (13) is fixedly arranged between the slide bar (11) and the first sleeve (8), a second sleeve (9) is fixedly arranged on the side of the slide bar (11) opposite to the corresponding clamping plate (7), a magnet block (17) is slidably arranged in the second sleeve (9), an electromagnet (10) is fixedly arranged on the slide bar (11), and the electromagnet (10) drives the magnet block (17) to squeeze the corresponding clamping plate (7).

2. The material taking device for injection molding machine according to claim 1, characterized in that: A guide groove is provided at the top of the support frame (1), a threaded screw (4) is rotatably arranged in the guide groove, a motor (2) is fixedly arranged on one side of the support frame (1), an output shaft of the motor (2) is coaxially fixedly connected to the threaded screw (4), a slider (3) is slidably arranged in the guide groove, the threaded screw (4) passes through the slider (3) and is threadably connected to the slider (3), and the bottom of the slider (3) is fixedly connected to an electric push rod (5).

3. The material taking device for injection molding machine according to claim 1, characterized in that: A second limit block (16) is fixedly arranged on the clamping plate (7), a third spring (15) is fixedly arranged between the magnet block (17) and the inner wall of the second sleeve (9), and an inclined surface is provided between the magnet block (17) and the end of the magnet block (17) away from the slide rod (11), and the inclined surface is slidably matched with the second limit block (16).

4. The material taking device for injection molding machine according to claim 1, characterized in that: A first limit block (601) is fixedly arranged in the slideway (602), and the first limit block (601) is located between the clamping plate (7) and the connecting column (603).

5. The material taking device for injection molding machine according to claim 1, characterized in that: The cross section of the slideway (602) is T-shaped. The slideway (602) is matched with the top of the clamping plate (7), and the top of the clamping plate (7) is slidably arranged in the slideway (602).

Images