Buffer device of plastic product manipulator

Abstract

The utility model discloses a buffer device of a plastic product manipulator, which is arranged on a manipulator main body structure, a rotating arm is hinged on the manipulator main body structure, the rotating arm is L-shaped, and the rotating arm is connected with a sucker support. The buffer device comprises a horizontal buffer rod movably matched on the manipulator main body structure, a connecting rod hinged to the horizontal buffer rod and a vertical ejector rod hinged to the connecting rod, the horizontal buffer rod is matched with a reset spring, and the vertical ejector rod downwards protrudes out of the bottom of the manipulator main body structure; the vertical part of the rotating arm acts on the horizontal buffer rod, the horizontal buffer rod acts on the vertical ejector rod through the connecting rod, and the vertical ejector rod moves downwards and abuts against the horizontal part of the rotating arm. Due to the buffering effect of the horizontal buffering rod and the limiting effect of the vertical ejector rod, the last stage of downward rotation of the rotating arm by 90 degrees is stable and accurate in stopping, and products adsorbed by the suction cup can be effectively prevented from falling off.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of plastic product production, concretely relates to mechanical hand of plastic product production equipment. BACKGROUND

[0002] The outer frame of the display is a plastic product, which is formed in an injection molding equipment, after the mold is opened, the mechanical hand is close to the injection molding equipment, at this time, the suction cup of the mechanical hand is in a horizontal state, and the plastic product is adsorbed, then the plastic product is transferred to the top of the conveying belt, the suction cup rotates and changes into a vertical state, and the plastic product changes from the vertical state to the horizontal state. Then, the plastic product is released, and the plastic product falls on the conveying belt and is conveyed to a packaging station by the conveying belt.

[0003] The suction cup is installed on the suction cup support, and the suction cup support is hinged to the main body structure of the mechanical hand. Under the drive of the motor or the rotary cylinder, the suction cup support rotates 90 degrees forward and reversely relative to the main body structure of the mechanical hand. When the suction cup rotates from the vertical state to the horizontal state, the suction cup is in an empty state. When the suction cup rotates from the horizontal state to the vertical state, the suction cup adsorbs the product. If the suction cup vibrates when the rotation stops, the product adsorbed by the suction cup may fall off. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem that after the suction cup of the mechanical hand adsorbs the product and rotates from the horizontal state to the vertical state, if the suction cup vibrates when the rotation stops, the product adsorbed by the suction cup may fall off.

[0005] To solve the above technical problem, the utility model provides the following technical scheme: a buffer device of a plastic product mechanical hand is arranged on the main body structure of the mechanical hand, a rotary arm is hinged to the main body structure of the mechanical hand, the rotary arm is in an L shape, the rotary arm is connected with the suction cup support, the buffer device comprises a horizontal buffer rod movably matched on the main body structure of the mechanical hand, a connecting rod hinged to the horizontal buffer rod, and a vertical top rod hinged to the connecting rod, the horizontal buffer rod is matched with a reset spring, and the vertical top rod protrudes downward from the bottom of the main body structure of the mechanical hand; the vertical part of the rotary arm acts on the horizontal buffer rod, the horizontal buffer rod acts on the vertical top rod through the connecting rod, and the vertical top rod moves downward and abuts against the horizontal part of the rotary arm.

[0006] According to the above technical scheme, the suction cup of the mechanical hand is in the horizontal state and adsorbs the plastic product on the injection molding equipment. After the mechanical hand leaves the injection molding equipment, under the drive of the motor or the rotary cylinder, the rotary arm rotates 90 degrees downward, the vertical part of the rotary arm contacts the horizontal buffer rod and drives the horizontal buffer rod to displace horizontally, and the horizontal buffer rod drives the vertical top rod to move downward through the connecting rod. When the horizontal part of the rotary arm abuts against the bottom end of the vertical top rod, the suction cup is in the vertical state, and the product has rotated from the vertical state to the horizontal state.

[0007] Due to the buffering effect of the horizontal buffer rod and the limiting effect of the vertical ejector rod, the last stage of the downward rotation of the rotating arm by 90 degrees is stable and accurate, and the product adsorbed by the suction cup can be effectively prevented from falling off.

[0008] The bottom of the mechanical hand main body structure is provided with a cavity, the buffering device is arranged in the cavity, horizontal strip grooves and vertical strip grooves are arranged on the left and right side walls of the cavity, the first hinged shaft of the horizontal buffer rod and the connecting rod is matched in the horizontal strip groove, and the second hinged shaft of the connecting rod and the vertical ejector rod is matched in the vertical strip groove.

[0009] The front side wall of the cavity is provided with a front guide hole, and the horizontal buffer rod is movably matched in the front guide hole.

[0010] An L-shaped support is arranged in the cavity, a reset spring is sleeved on the horizontal buffer rod, the front end of the reset spring abuts against a limiting ring on the horizontal buffer rod, and the tail end of the reset spring abuts against the L-shaped support, and the horizontal buffer rod passes through the guide through hole of the L-shaped support.

[0011] The bottom plate of the cavity is provided with a bottom guide hole, and the vertical ejector rod is movably matched in the bottom guide hole.

[0012] The suction cup support and the horizontal part of the rotating arm are fixedly connected through bolts, and a pair of suction cups are arranged on the suction cup support.

[0013] The buffering device can stably and accurately convey products by the mechanical hand. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further explained in connection with the drawings:

[0015] Figure 1 It is the partial structure schematic drawing of the plastic product mechanical hand with buffering device;

[0016] Figure 2 It is the schematic drawing of the suction cup 31 in the vertical state;

[0017] Figure 3 It is the sectional view of the buffering device of the plastic product mechanical hand with buffering device; Figure 1 The combination structure schematic drawing of the mechanical hand main body structure 10 and the rotating arm 20;

[0018] Figure 4 It is the sectional view of the buffering device of the plastic product mechanical hand with buffering device; Figure 3 The combination structure schematic drawing of the mechanical hand main body structure 10 and the rotating arm 20;

[0019] Figure 5 It is the sectional view of the buffering device of the plastic product mechanical hand with buffering device; Figure 2 The combination structure schematic drawing of the mechanical hand main body structure 10 and the rotating arm 20;

[0020] Figure 6 It is the sectional view of the buffering device of the plastic product mechanical hand with buffering device;Figure 5 The right view.

[0021] Explanation of symbols in the diagram:

[0022] 10. Main structure of the robotic arm; 11. Horizontal strip groove; 12. Vertical strip groove; 13. Base plate of the cavity; 14. Motor mounting plate;

[0023] 20. Rotating arm; 21. Horizontal part of the rotating arm; 22. Vertical part of the rotating arm; 23. Rotating shaft;

[0024] 30. Suction cup bracket; 31. Suction cup;

[0025] 40. Buffer device; 41. Horizontal buffer rod; 42. Connecting rod; 43. Vertical top rod; 44. Return spring; 45. First hinge shaft; 46. Second hinge shaft; 47. Limiting ring;

[0026] 50. L-shaped bracket. Detailed Implementation

[0027] Combination Figure 1 , Figure 3 , Figure 4 A buffer device for a plastic product manipulator is provided, which is installed on the main body structure 10 of the manipulator. A rotating arm 20 is hinged to the main body structure of the manipulator. The rotating arm is L-shaped and connected to a suction cup bracket 30. The buffer device 40 includes a horizontal buffer rod 41 movably fitted on the main body structure of the manipulator, a connecting rod 42 hinged to the horizontal buffer rod, and a vertical top rod 43 hinged to the connecting rod. The horizontal buffer rod is equipped with a return spring 44. The vertical top rod protrudes downward from the bottom of the main body structure of the manipulator. The vertical part of the rotating arm acts on the horizontal buffer rod, and the horizontal buffer rod acts on the vertical top rod through the connecting rod. The vertical top rod moves downward and abuts against the horizontal part of the rotating arm.

[0028] The bottom of the main body structure 10 of the robot arm is provided with a cavity, and the buffer device 40 is set in the cavity. The left and right side walls of the cavity are provided with a horizontal strip groove 11 and a vertical strip groove 12. The first hinge shaft 45 of the horizontal buffer rod 41 and the connecting rod 42 are engaged in the horizontal strip groove, and the second hinge shaft 46 of the connecting rod and the vertical top rod 43 are engaged in the vertical strip groove.

[0029] A front guide hole is provided on the front side wall of the cavity, and the horizontal buffer rod 41 is movably fitted in the front guide hole.

[0030] An L-shaped bracket 50 is installed in the cavity, and a return spring 44 is sleeved on the horizontal buffer rod 41. The front end of the return spring abuts against the limiting ring 47 on the horizontal buffer rod, and the tail end of the return spring abuts against the L-shaped bracket.

[0031] The bottom guiding hole is arranged on the bottom plate 13 of the cavity.

[0032] The suction cup support 30 is fixedly connected with the horizontal part 21 of the rotating arm by bolts, and a pair of suction cups 31 are installed on the suction cup support 30.

[0033] As Figure 6 The motor installation plate 14 is arranged on the mechanical arm main body structure 10, and the motor installed on the motor installation plate drives the rotating shaft 23 of the rotating arm 20 through a synchronous belt.

[0034] The suction cup 31 of the mechanical arm is in a horizontal state, and the plastic product on the injection molding equipment is adsorbed. After the mechanical arm leaves the injection molding equipment, the rotating arm 20 is driven to rotate downward by 90 degrees under the driving of the motor, the vertical part 22 of the rotating arm contacts the horizontal buffer rod 41, and drives the horizontal displacement of the horizontal buffer rod, the horizontal buffer rod drives the vertical ejector rod 43 to move downward through the connecting rod 42. When the horizontal part 21 of the rotating arm abuts against the bottom end of the vertical ejector rod 43, the suction cup 31 is in a vertical state, and the product has been rotated from the vertical state to the horizontal state.

[0035] The above is only the preferred embodiment of the present application, and for the ordinary skilled in the art, the specific embodiment and application range can be changed according to the idea of the present application, and the content of the specification should not be understood as the limitation of the present application.

Claims

1. A buffer device for a plastic product manipulator, disposed on the main body structure (10) of the manipulator, wherein a rotating arm (20) is hinged to the main body structure of the manipulator, the rotating arm being L-shaped and connected to a suction cup bracket (30), characterized in that: The buffer device (40) comprises a horizontal buffer rod (41) movably fitted on the main structure of the manipulator, a connecting rod (42) hinged to the horizontal buffer rod, and a vertical ejector rod (43) hinged to the connecting rod, the horizontal buffer rod is provided with a reset spring (44), and the vertical ejector rod protrudes downward from the bottom of the main structure of the manipulator; the vertical part of the rotary arm acts on the horizontal buffer rod, the horizontal buffer rod acts on the vertical ejector rod through the connecting rod, and the vertical ejector rod goes down and abuts against the horizontal part of the rotary arm.

2. The cushioning device for a plastic product handler as claimed in claim 1, wherein: The bottom of the main structure (10) of the manipulator is provided with a cavity, the buffer device (40) is arranged in the cavity, horizontal strip grooves (11) and vertical strip grooves (12) are arranged on the left and right side walls of the cavity, the horizontal buffer rod (41) and the first hinge shaft (45) of the connecting rod (42) are movably fitted in the horizontal strip grooves, and the connecting rod and the second hinge shaft (46) of the vertical ejector rod (43) are movably fitted in the vertical strip grooves.

3. The cushioning device for a plastic product handler as claimed in claim 2, wherein: A front guide hole is arranged on the front side wall of the cavity, and the horizontal buffer rod (41) is movably fitted in the front guide hole.

4. The cushioning device for a plastic product handler as set forth in claim 3, wherein: An L-shaped support (50) is arranged in the cavity, the reset spring (44) is sleeved on the horizontal buffer rod (41), the front end of the reset spring abuts against a limiting ring (47) on the horizontal buffer rod, and the tail end of the reset spring abuts against the L-shaped support.

5. The cushioning device for a plastic product handler as recited in claim 2, wherein: A bottom guide hole is arranged on the bottom plate (13) of the cavity, and the vertical ejector rod (43) is movably fitted in the bottom guide hole.

6. The cushioning device for a plastic product handler as claimed in claim 1, wherein: The suction disc support (30) is fixedly connected to the horizontal part (21) of the rotary arm through bolts, and a pair of suction discs (31) are arranged on the suction disc support (30).

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