Automatic material taking mechanical arm for injection molding machine tool

Abstract

The utility model relates to the technical field of mechanical arms, in particular to an automatic material taking mechanical arm for an injection molding machine tool, which comprises a base, a cantilever and a suspension arm, the suspension arm and the cantilever are arranged on the base, the suspension arm moves left and right along the cantilever, a telescopic arm moves front and back along the cantilever, and the telescopic arm can be brought to the position right above an object to be taken. The telescopic arm can reach the position over an object to be fetched only by moving along the two straight lines and does not need to rotate along the cantilever, the working radius is reduced, and people are prevented from being accidentally injured or the object is prevented from being collided; a ball is arranged below the telescopic arm, after the telescopic arm drives the ball to enter an object to be fetched, the ball is inflated, after the ball is enlarged, pressure is generated on the inner wall of the object to be fetched, when the friction force between the ball and the object to be fetched is larger than the gravity of the object to be fetched, the telescopic arm can lift the object to be fetched, and it is avoided that when the object is fetched by exerting pressure on the object through a gripper, the object to be fetched is damaged. And the extrusion deformation damage to the object is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical arms, in particular to an automatic material taking mechanical arm for an injection molding machine. Background Art

[0002] Injection molding machine is also known as 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. First, add granular or powdered plastics into the barrel, and the plastic becomes molten through the rotation of the screw and the heating of the outer wall of the barrel. Then the machine closes the mold and moves the injection seat forward, so that the nozzle is close to the gate of the mold. Then, pressurized oil is passed into the injection cylinder to push the screw forward, so that the molten material is injected into the closed mold with a lower temperature at a very high pressure and a faster speed. After a certain period of time and pressure maintenance (also known as pressure holding), cooling, it solidifies and forms, and then the mold can be opened to take out the product (the purpose of pressure holding is to prevent the backflow of the molten material in the mold cavity, add materials to the mold cavity, and ensure that the product has a certain density and dimensional tolerance). Injection molding is a cyclic process, and each cycle mainly includes: quantitative feeding-melting plasticization-pressure injection-mold filling cooling-mold opening and taking out the parts. After taking out the plastic parts, the mold is closed again for the next cycle.

[0003] There are many types of object-picking robotic arms. The commonly used rotary grasping robotic arms have a large working radius, which can easily injure people or damage objects. In addition, when grasping objects with small openings, this type of robotic arm relies on the gripper to apply pressure to the object to take it out, which can easily squeeze, deform, or even crush the object. Utility Model Content

[0004] The main purpose of the utility model is to provide an automatic material taking mechanical arm for an injection molding machine tool, so as to solve the problem in the related art that objects are easily squeezed, deformed or even crushed.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, there is provided an automatic material-retrieving robot arm for an injection molding machine tool, comprising a base, a cantilever and a suspension arm, wherein the suspension arm is arranged below the cantilever, and the suspension arm comprises a cross bar, a protrusion is arranged on the top of the cross bar, the bottom of the protrusion is fixedly connected to the cross bar, and the top is slidably connected to the cantilever; a No. 2 motor is fixedly arranged at one end inside the cross bar, a transverse hydraulic rod is arranged at the front end of the No. 2 motor, one end of the transverse hydraulic rod is fixedly connected to the No. 2 motor, and a hollow telescopic arm is arranged at the other end of the transverse hydraulic rod, the telescopic arm comprises a telescopic rod, a brim, a sphere and an air inlet, and the top side surface of the telescopic arm is connected to the The end of the transverse hydraulic rod is fixedly connected, and a hollow sphere is provided at the bottom end of the telescopic rod. The top of the sphere is fixedly connected to the telescopic rod, and the hollow of the sphere is communicated with the hollow of the telescopic rod. An air inlet is provided at the top of the telescopic rod, and a brim is provided around the air inlet. The brim is fixedly connected to the telescopic rod, and a hose is provided on the upper part of the air inlet. One end of the hose is fixedly connected to the brim. A transverse groove and a slot are provided in the middle of the bottom of the cross bar along the long axis direction. The slot passes through the inside and outside of the cross bar and is connected to the transverse groove. The diameter of the brim is slightly larger than the opening of the transverse groove, and the brim is arranged in the transverse groove and is slidably connected to the transverse groove.

[0006] Furthermore, the cantilever comprises a longitudinal rod, a longitudinal groove is provided at the bottom of the longitudinal rod along the long axis direction, a bottom opening of the longitudinal groove is slightly smaller than a width of the protrusion, and the longitudinal groove is slidably connected to the protrusion.

[0007] Furthermore, a hollow longitudinal hydraulic rod is provided directly below the longitudinal groove rail, the longitudinal hydraulic rod is arranged parallel to the longitudinal groove rail, the tail end of the longitudinal hydraulic rod is fixedly connected to the boom, and the tail end of the longitudinal hydraulic rod passes through the boom and is fixedly connected to the hose.

[0008] Furthermore, a No. 1 motor is provided at the other end of the longitudinal hydraulic rod, the No. 1 motor is fixedly connected to the longitudinal hydraulic rod, and the No. 1 motor is fixedly arranged in the base.

[0009] Furthermore, an air pump is provided behind the No. 1 motor, the air pump is fixedly connected to the longitudinal hydraulic rod, and the air pump and the No. 1 motor are fixedly arranged in parallel in the base.

[0010] Furthermore, the base includes a pedestal, a control group and a column, the bottom surface of the pedestal is fixed on the ground, the top of the pedestal is provided with a column, and the bottom of the column is fixedly connected to the top of the pedestal.

[0011] Furthermore, a control group is provided on the front side of the column, the control group is fixedly connected to the column, and the control group is electrically connected to motor No. 1, motor No. 2, telescopic arm and air pump, and the air pump is fixedly arranged in parallel with motor No. 1 in the column.

[0012] Compared with the prior art, the utility model has the following beneficial effects: a hanging arm and a cantilever are provided on the base, the hanging arm moves left and right along the cantilever, and the telescopic arm moves forward and backward along the cantilever, so that the telescopic arm can be brought to the top of the object to be picked up, and the telescopic arm only needs to move along two straight lines to reach the top of the object to be picked up, and there is no need to rotate along the cantilever, thereby reducing the working radius and avoiding accidental injury to people or collision with objects; a sphere is provided under the telescopic arm, and after the telescopic arm drives the sphere into the interior of the object to be picked up, air is inflated into the sphere, and when the sphere becomes larger, pressure is generated on the inner wall of the object to be picked up, and when the friction between the sphere and the object to be picked up is greater than the gravity of the object to be picked up, the telescopic arm can lift the object to be picked up, avoiding squeezing, deformation and damage to the object when the gripping claws apply pressure to the object to take it out. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an overall schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the base structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the cantilever structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the boom structure of the utility model;

[0017] Figure 5 This is a schematic diagram of the telescopic arm structure of the utility model.

[0018] Illustration Description:

[0019] 1. base; 101. base; 102. control group; 103. column;

[0020] 2. Cantilever; 201. Longitudinal rod; 202. Longitudinal groove rail; 203. Longitudinal hydraulic rod; 204. Air pump; 205. No. 1 motor;

[0021] 3. Boom; 301. Crossbar; 302. No. 2 motor; 303. Horizontal hydraulic rod; 304. Horizontal groove rail; 305. Notch; 306. Hose; 307. Telescopic arm; 308. Bump; 3071. Brim; 3072. Telescopic rod; 3073. Sphere; 3074. Air inlet. DETAILED DESCRIPTION

[0022] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0023] See also Figures 1 to 5The present embodiment provides an automatic material-retrieving robot arm for an injection molding machine, comprising a base 1, a cantilever 2 and a suspension arm 3. The suspension arm 3 is arranged below the cantilever 2. The suspension arm 3 comprises a cross bar 301. A protrusion 308 is arranged on the top of the cross bar 301. The bottom of the protrusion 308 is fixedly connected to the cross bar 301 and the top is slidably connected to the cantilever 2. The protrusion 308 slides under the cantilever 2 to drive the cross bar 301 to slide along the cantilever 2. A second motor 302 is fixedly arranged at one end of the cross bar 301. A transverse hydraulic rod 303 is arranged at the front end of the second motor 302. The transverse hydraulic rod One end of 303 is fixedly connected to the second motor 302, and the second motor 302 drives the transverse hydraulic rod 303 to extend or shorten. The other end of the transverse hydraulic rod 303 is provided with a hollow telescopic arm 307, and the telescopic arm 307 includes a telescopic rod 3072, a brim 3071, a sphere 3073 and an air inlet 3074. The top side of the telescopic arm 307 is fixedly connected to the end of the transverse hydraulic rod 303, and the bottom end of the telescopic rod 3072 is provided with a hollow sphere 3073, and the top of the sphere 3073 is fixedly connected to the telescopic rod 3072. The hollow of the sphere 3073 is connected with the hollow of the telescopic rod 3072, and the air can enter the sphere 3073 through the telescopic rod 3072. The top of the telescopic rod 3072 is provided with an air inlet 3074, and a brim 3071 is provided around the air inlet 3074. The brim 3071 is fixedly connected to the telescopic rod 3072. The transverse hydraulic rod 303 pushes the brim 3071 to drive the telescopic rod 3072 to move. A hose 306 is provided on the upper part of the air inlet 3074, and one end of the hose 306 is fixedly connected to the brim 3071. Air is passed through the hose 306 enters the air inlet 3074, and a transverse groove 304 and a slot 305 are provided in the middle of the bottom of the cross bar 301 along the long axis direction. The slot 305 runs through the inside and outside of the cross bar 301 and is connected to the transverse groove 304. The hose 306 moves along the slot 305 following the telescopic arm 307. The diameter of the brim 3071 is slightly larger than the opening of the transverse groove 304, and the brim 3071 is arranged in the transverse groove 304 and is slidably connected to the transverse groove 304. The brim 3071 slides on the transverse groove 304, driving the telescopic arm 307 to move forward and backward.

[0024] The cantilever 2 includes a longitudinal rod 201, and a longitudinal groove rail 202 is provided at the bottom of the longitudinal rod 201 along the long axis direction. The bottom opening of the longitudinal groove rail 202 is slightly smaller than the width of the protrusion 308, and the longitudinal groove rail 202 is slidably connected to the protrusion 308. The upper part of the protrusion 308 is in the longitudinal groove rail 202, and the protrusion 308 slides along the longitudinal groove rail 202, driving the boom 3 to move left and right.

[0025] A hollow longitudinal hydraulic rod 203 is provided directly below the longitudinal groove rail 202. The longitudinal hydraulic rod 203 is arranged parallel to the longitudinal groove rail 202 to facilitate pushing the boom 3 to move. The tail end of the longitudinal hydraulic rod 203 is fixedly connected to the boom 3. The tail end of the longitudinal hydraulic rod 203 passes through the boom 3 and is fixedly connected to the hose 306, so that air can be pumped into the hose 306.

[0026] A No. 1 motor 205 is disposed at the other end of the longitudinal hydraulic rod 203 . The No. 1 motor 205 is fixedly connected to the longitudinal hydraulic rod 203 . The No. 1 motor 205 drives the longitudinal hydraulic rod 203 to extend or shorten. The No. 1 motor 205 is fixedly disposed in the base 1 .

[0027] An air pump 204 is provided behind the No. 1 motor 205 . The air pump 204 is fixedly connected to the longitudinal hydraulic rod 203 . The air pump 204 can pump air into the longitudinal hydraulic rod 203 . The air pump 204 and the No. 1 motor 205 are fixedly arranged in parallel in the base 1 .

[0028] The base 1 includes a pedestal 101, a control group 102 and a column 103. The bottom surface of the pedestal 101 is fixed on the ground to provide support for the entire machine. The top of the pedestal 101 is provided with a column 103. The bottom of the column 103 is fixedly connected to the top of the pedestal 101, and the column 103 provides support for the cantilever 2.

[0029] A control group 102 is provided on the front of the column 103. The control group 102 is fixedly connected to the column 103, and the control group 102 is electrically connected to the No. 1 motor 205, the No. 2 motor 302, the telescopic arm 307 and the air pump 204. The control group 102 can control the extension or shortening of the No. 1 motor 205, the No. 2 motor 302 and the telescopic arm 307, and can also control the opening or closing of the air pump 204. The air pump 204 and the No. 1 motor 205 are fixedly arranged in parallel in the column 103.

[0030] The corresponding knob of the rotating control group 102 is used to operate the No. 1 motor 205 to adjust the length of the longitudinal hydraulic rod 203. The longitudinal hydraulic rod 203 is extended to push the boom 3 to move rightward along the longitudinal groove 202. The longitudinal hydraulic rod 203 is shortened to pull the boom 3 to move leftward along the longitudinal groove 202. By adjusting the length of the longitudinal hydraulic rod 203, the boom 3 and the object to be picked up are placed in the same plane. The No. 2 motor 302 is controlled by the control group 102 to adjust the length of the transverse hydraulic rod 303. The hydraulic rod 303 is extended to push the telescopic arm 307 to move backward, and the transverse hydraulic rod 303 is shortened to pull the telescopic arm 307 to move forward. By adjusting the length of the transverse hydraulic rod 303, the telescopic arm 307 is placed directly above the object to be picked up. The telescopic arm 307 is extended by the control group 102 to extend the ball 3073 from the opening of the object to be picked up into the object to be picked up. The air pump 204 is turned on by the control group 102 to pump air into the longitudinal hydraulic rod 203, and the air enters the hose from the longitudinal hydraulic rod 203. 306, and then enter the telescopic rod 3072 from the air inlet 3074, and finally reach the sphere 3073, so that the sphere 3073 becomes larger and squeezes the object to be taken. The sphere 3073 and the object to be taken generate sufficient friction to firmly fix the object to be taken on the sphere 3073, stop pumping air, and then retract the telescopic arm 307 through the control group 102 to take the object to be taken out of the mold, adjust the length of the longitudinal hydraulic rod 203, so that the boom 3 and the container containing the object to be taken are in the same plane; adjust the transverse hydraulic The length of the rod 303 enables the telescopic arm 307 to be directly above the container for the object to be taken. The telescopic arm 307 is extended, and the object to be taken is gently placed in the designated container. The air pump 204 is turned off. Under the action of the pressure of the sphere 3073, the air in the sphere 3073 is discharged into the atmosphere through the telescopic arm 307, the hose 306 and the longitudinal hydraulic rod 203. The sphere 3073 becomes smaller, and the squeeze between the sphere 3073 and the object to be taken disappears. The telescopic arm 307 is retracted, completing the process of transporting the object to be taken from the mold to the designated container.

[0031] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An automatic material-retrieving robot arm for an injection molding machine tool, comprising a base (1), a cantilever (2) and a suspension arm (3), characterized in that: The boom (3) is arranged below the cantilever (2), and the boom (3) comprises a cross bar (301), a protrusion (308) is arranged on the top of the cross bar (301), the bottom of the protrusion (308) is fixedly connected to the cross bar (301), and the top is slidably connected to the cantilever (2); a second motor (302) is fixedly arranged on one end of the cross bar (301), a transverse hydraulic rod (303) is arranged on the front end of the second motor (302), and one end of the transverse hydraulic rod (303) is fixedly connected to the cross bar (301), and a second motor (302) is fixedly arranged on the front end of the second motor (302). The end of the transverse hydraulic rod (303) is fixedly connected to the second motor (302); the other end of the transverse hydraulic rod (303) is provided with a hollow telescopic arm (307); the telescopic arm (307) comprises a telescopic rod (3072), a brim (3071), a sphere (3073) and an air inlet (3074); the top side of the telescopic arm (307) is fixedly connected to the end of the transverse hydraulic rod (303); the bottom end of the telescopic rod (3072) is provided with a hollow sphere (3073); The top of the sphere (3073) is fixedly connected to the telescopic rod (3072), and the hollow of the sphere (3073) is communicated with the hollow of the telescopic rod (3072). The top of the telescopic rod (3072) is provided with an air inlet (3074), and a brim (3071) is provided around the air inlet (3074). The brim (3071) is fixedly connected to the telescopic rod (3072). A hose (306) is provided on the upper part of the air inlet (3074). One end of the tube (306) is fixedly connected to the brim (3071); a transverse groove (304) and a notch (305) are provided in the middle of the bottom of the cross bar (301) along the long axis direction; the notch (305) penetrates inside and outside the cross bar (301) and is connected to the transverse groove (304); the diameter of the brim (3071) is larger than the opening of the transverse groove (304); the brim (3071) is provided in the transverse groove (304) and is slidably connected to the transverse groove (304).

2. The automatic material taking robot arm for injection molding machine according to claim 1, characterized in that: The cantilever (2) comprises a longitudinal rod (201), the bottom of the longitudinal rod (201) is provided with a longitudinal groove rail (202) along the long axis direction, the bottom opening of the longitudinal groove rail (202) is smaller than the width of the protrusion (308), and the longitudinal groove rail (202) is slidably connected to the protrusion (308).

3. The automatic material taking robot arm for injection molding machine according to claim 2, characterized in that: A hollow longitudinal hydraulic rod (203) is provided directly below the longitudinal groove rail (202). The longitudinal hydraulic rod (203) is arranged in parallel with the longitudinal groove rail (202). The tail end of the longitudinal hydraulic rod (203) is fixedly connected to the boom (3). The tail end of the longitudinal hydraulic rod (203) passes through the boom (3) and is fixedly connected to a hose (306).

4. The automatic material taking robot arm for injection molding machine according to claim 3, characterized in that: A No. 1 motor (205) is provided at the other end of the longitudinal hydraulic rod (203), the No. 1 motor (205) is fixedly connected to the longitudinal hydraulic rod (203), and the No. 1 motor (205) is fixedly arranged in the base (1).

5. The automatic material taking robot arm for injection molding machine according to claim 4, characterized in that: An air pump (204) is arranged behind the first motor (205), the air pump (204) is fixedly connected to the longitudinal hydraulic rod (203), and the air pump (204) and the first motor (205) are fixedly arranged in parallel in the base (1).

6. The automatic material taking robot arm for injection molding machine according to claim 5, characterized in that: The base (1) comprises a pedestal (101), a control group (102) and a column (103); the bottom surface of the pedestal (101) is fixedly arranged on the ground; the top of the pedestal (101) is provided with a column (103); the bottom of the column (103) is fixedly connected to the top of the pedestal (101).

7. The automatic material taking robot arm for injection molding machine according to claim 6, characterized in that: A control group (102) is provided on the front of the column (103); the control group (102) is fixedly connected to the column (103); the control group (102) is electrically connected to a No. 1 motor (205), a No. 2 motor (302), a telescopic arm (307) and an air pump (204); and the air pump (204) and the No. 1 motor (205) are fixedly arranged in parallel in the column (103).

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