Pneumatic manipulator device for strapping machine

Abstract

The utility model relates to the technical field of manipulators, in particular to a pneumatic manipulator device for a strapping machine, which comprises a box body, the interior of the box body is provided with a cavity, one side of the cavity is provided with an air inlet hole, and the air inlet hole is used for communicating with an air supply device so as to input air into the cavity through the air supply device; a plurality of mounting holes are formed in the opposite side of the air inlet hole, a clamping piece is slidably mounted in each mounting hole, air in the cavity pushes the clamping pieces to push in the direction away from the air inlet hole so as to abut against an object, and the effect of improving the clamping efficiency of the special-shaped pipe is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical hand, in particular to a pneumatic mechanical hand device for strapping machine. BACKGROUND

[0002] At present, the mechanical hand is usually used with the mechanical arm, and the mechanical hand is used for controlling the mechanical arm to lift, descend, rotate and the like, and the pneumatic mechanical hand can quickly and accurately grasp the material required by the strapping machine. In the loading and unloading process, the action speed can be controlled by adjusting the pressure and flow of the pneumatic system. For example, in the packaging industry, when it is required to place the bunched products on the strapping machine for strapping, the pneumatic mechanical hand can quickly move to the product storage position, grasp the product by using the clamping jaw (usually driven by pneumatic to realize the opening and closing action), and then carry the product to the workbench of the strapping machine under the action of the mechanical arm.

[0003] The most common use form of the existing mechanical hand is divided into two kinds of clamping jaw and suction cup. The clamping jaw mainly relies on the rigid clamping force to clamp the product, and in the process of clamping the product, the product is easily damaged. Therefore, when clamping some products which require no damage and no trace, the suction cup is more used to grasp the product. Since the suction cup relies on suction force to grasp the product, the product will not be damaged.

[0004] The existing technical solution in the above has the following defects: when the suction cup type mechanical hand grasps some special-shaped objects, the product grasping fails due to insufficient suction force, and it is necessary to re-adjust, which is low in work efficiency. CONTENT OF THE INVENTION

[0005] In order to achieve the effect of improving the clamping efficiency of special-shaped pipes, the present application provides a pneumatic mechanical hand device for strapping machine.

[0006] The above technical purpose of the present application is realized by the following technical scheme:

[0007] A pneumatic mechanical hand device for strapping machine, comprising a box body, a cavity is formed in the inside of the box body, a gas inlet hole is formed on one side of the cavity, the gas inlet hole is used for being communicated with a gas supply device to input gas into the cavity through the gas supply device, a plurality of mounting holes are formed on the opposite side of the gas inlet hole, a clamping piece is slidingly installed in each mounting hole, and the gas in the cavity pushes the clamping piece to push in the direction away from the gas inlet hole, so as to tightly push the object.

[0008] By adopting the above scheme, when the object is clamped, a proper number of mechanical hands are selected and placed on the opposite sides of the object, the air inlet hole is arranged in communication with the air supply device, the air supply device inputs the gas into the cavity through the air inlet hole, the gas pushes the clamping piece to slide out of the cavity and tightly press the object, so as to complete the clamping of the object; each clamping piece can act independently and can be extended or retracted according to the shape of the object, so that the clamping efficiency of the special-shaped object is higher.

[0009] Further, each mounting hole is rectangular, and a plurality of air inlet holes are uniformly arranged from top to bottom of the box body; a plurality of sliding assemblies are arranged on the periphery of each mounting hole, and the plurality of sliding assemblies are arranged on the inner wall of the cavity; each sliding assembly comprises a sliding sleeve and a sliding rod, the bottom wall of the sliding sleeve is connected with the inner wall of the cavity, the sliding rod is inserted into the sliding sleeve, and the sliding rod can reciprocate along the sliding sleeve; a connecting piece is arranged at one end of the sliding rod away from the bottom wall of the sliding sleeve, and the connecting piece is fixedly connected with the sliding rod and the side of the clamping piece inserted into the cavity.

[0010] By adopting the above scheme, the sliding rod moves along the sliding sleeve, and the clamping piece can be driven to slide along the mounting hole through the connecting piece.

[0011] Further, the side of each clamping piece away from the connecting piece is provided with a reinforcing plate, the reinforcing plate is fixedly connected with each clamping piece, the reinforcing plate has elasticity, and the clamping plate can form a special plane with the output of the plurality of clamping pieces relative to the cavity.

[0012] By adopting the above scheme, the reinforcing plate is arranged to form a face at the pressing end of the plurality of clamping pieces, thereby increasing the contact area with the object and making the clamping of the object more stable.

[0013] Further, a plurality of caulking assemblies are arranged between the two adjacent mounting holes, and the plurality of caulking assemblies are uniformly arranged in an array between the two adjacent mounting holes; each caulking assembly comprises a sleeve, a thimble and an elastic piece, the bottom wall of the sleeve is fixedly connected with the side wall of the box body, the thimble is inserted into the sleeve and can reciprocate along the sleeve, and the elastic piece is arranged in the sleeve, the two ends of the elastic piece are fixedly connected with the bottom wall of the sleeve and the end of the thimble, respectively, and the elastic piece is used to push the thimble to move in the direction close to the object to tightly press the object.

[0014] By adopting the above scheme, under the action of the elastic piece, the plurality of thimbles move in the direction away from the bottom wall of the sleeve to tightly press the reinforcing plate and drive the reinforcing plate to tightly contact the object, so that the clamping of the object by the reinforcing plate is more stable.

[0015] Further, the cavity is internally provided with a flow control assembly, the flow control assembly comprising a gas-permeable plate and a baffle, the gas-permeable plate being provided with a plurality of air holes on a surface thereof, the gas-permeable plate being arranged between the air inlet hole and the mounting hole and being fixedly connected to an inner wall of the cavity; the baffle being arranged on a side of the gas-permeable plate close to the mounting hole, the baffle comprising a frame body, a plurality of baffle bars being fixedly connected to the frame body, the number of the baffle bars being determined according to the number of rows of the air holes, the baffle being slidably connected to an upper surface of the gas-permeable plate, and the aperture of the air hole and the flow of the gas entering the mounting hole through the air hole can be controlled by sliding the baffle on the gas-permeable plate; and a driving assembly is arranged on a side wall of the cavity, the driving assembly being used to control the baffle to move along the gas-permeable plate.

[0016] By adopting the above scheme, the baffle is driven to move along the gas-permeable plate, the coverage of the baffle bars on the air hole can be controlled, the flow of the gas can be controlled, and the force of the gas pushing the clamping member to tightly press the object can be controlled.

[0017] Further, the driving assembly comprises a limiting plate, a jackscrew and a pushing plate, the limiting plate being fixedly connected to an outer wall of the box body, a fixed plate being fixedly connected to a side wall of the limiting plate away from the box body, the fixed plate being arranged perpendicularly to the limiting plate; the pushing plate being arranged on an upper surface of the limiting plate, a stretching slot being arranged on the side wall of the box body corresponding to the pushing plate, the pushing plate entering the cavity through the stretching slot and being fixedly connected to a side wall of the baffle; a rotating ring being fixedly connected to a side wall of the pushing plate away from the baffle, the jackscrew being rotatably connected to the rotating ring through the fixed plate, and the jackscrew being threadedly connected to the fixed plate.

[0018] By adopting the above scheme, driving the jackscrew to rotate can drive the pushing plate to move along the stretching slot through the rotating ring, the pushing plate drives the baffle to move along the gas-permeable plate, at this time, the coverage of the baffle bars on the air hole can be changed, and the flow of the gas through the air hole can be adjusted.

[0019] Further, each of the ejector pins is arc-shaped on a side away from the elastic member.

[0020] By adopting the above scheme, the arc-shaped arrangement avoids the ejector pins from pricking the reinforcing plate during the movement of the ejector pins to the reinforcing plate.

[0021] Further, a side of the jackscrew away from the rotating ring is provided with an operating rod, the operating rod being L-shaped as a whole.

[0022] By adopting the above scheme, the operating rod is arranged to facilitate driving the jackscrew to rotate around the fixed plate.

[0023] In summary, the present application has the following technical effects:

[0024] 1. Through the setting of mechanical hand, when clamping the object, the appropriate number of mechanical hands are selected and placed on the opposite sides of the object, the air inlet hole is communicated with the air supply device, the air supply device inputs the gas into the cavity through the air inlet hole, the gas pushes the clamping piece to slide out of the cavity and tightly press the object, so as to complete the clamping of the object; each clamping piece can act independently, and can be stretched and retracted according to the shape of the object, so that the clamping efficiency of the special-shaped object is higher.

[0025] 2. Through the setting of the sliding assembly, the sliding rod moves along the sliding sleeve, and the clamping piece can be driven to slide along the mounting hole through the connecting piece.

[0026] 3. Through the setting of the reinforcing plate, the tightly pressing ends of the clamping pieces form a surface, the contact area with the object is increased, and the clamping of the object is more stable. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic view of a pneumatic mechanical hand device for a strapping machine of the application;

[0028] Figure 2 is a structural schematic view of a sliding assembly of the application;

[0029] Figure 3 is a structural schematic view of the inside of a caulking assembly of the application;

[0030] Figure 4 is a sectional view of the whole.

[0031] In the figure, 1, box body; 11, air inlet hole; 12, mounting hole; 2, clamping piece; 3, sliding assembly; 31, sliding sleeve; 32, sliding rod; 33, connecting piece; 4, reinforcing plate; 5, caulking assembly; 51, sleeve; 52, thimble; 53, elastic piece; 6, flow control assembly; 61, air permeable plate; 62, baffle; 621, frame; 622, baffle strip; 7, driving assembly; 71, limiting plate; 72, jackscrew; 721, operating lever; 73, push plate; 731, rotating ring; 74, fixed plate. DETAILED DESCRIPTION

[0032] The application will be further described in detail below with reference to the drawings.

[0033] REFERENCE Figures 1-2The embodiment provides a pneumatic mechanical hand device for a strapping machine, the mechanical hand device is used in connection with a mechanical arm, the mechanical arm can drive the mechanical hand to lift, rotate and the like, wherein the mechanical hand comprises a box body 1, a caulking assembly 5 and a clamping piece 2, a cavity is arranged in the box body 1, opposite sides of the cavity are respectively provided with an air inlet hole 11 and a mounting hole 12 which are in communication with the cavity; the mounting hole 12 is provided with a plurality of mounting holes 12 which are uniformly arranged from top to bottom on the side wall of the box body 1, one clamping piece 2 is inserted on each mounting hole 12, and the clamping piece 2 can slide along the mounting hole 12; the air inlet hole 11 is used in communication with a gas supply device, the gas supply device inputs gas into the cavity through the air inlet hole 11, and the gas pushes the plurality of clamping pieces 2 to tightly press an object; in use, the number of the mechanical hands on the two sides of the object can be increased or decreased according to the size of the object.

[0034] With reference to Figure 2 In the embodiment, the mounting hole 12 is in a rectangular shape, and the sliding connection mode of the clamping piece 2 and the mounting hole 12 is as follows: a plurality of sliding assemblies 3 are arranged on the circumferential side of each mounting hole 12, the plurality of sliding assemblies 3 are arranged on the inner wall of the cavity, each sliding assembly 3 comprises a sliding sleeve 31, a sliding rod 32 and a connecting piece 33, the bottom wall of the sliding sleeve 31 is fixedly connected with the inner wall of the cavity, the sliding rod 32 is inserted into the sliding sleeve 31 and can reciprocatingly move along the sliding sleeve 31; the connecting piece 33 is in a whole rectangular ring shape, the connecting piece 33 is fixedly connected with one side of the clamping piece 2 inserted into the cavity and is fixedly connected with one end of the plurality of sliding rods 32 away from the bottom wall of the sliding sleeve 31, so that the sliding rod 32 is fixedly connected with the clamping piece 2, and movement of the sliding rod 32 along the sliding sleeve 31 can drive the clamping piece 2 to move along the mounting hole 12.

[0035] With reference to Figure 1 The side, away from the connecting piece 33, of the plurality of clamping pieces 2 is provided with a reinforcing plate 4, the reinforcing plate 4 is fixedly connected with each clamping piece 2, and the reinforcing plate 4 has elasticity; in the embodiment, the reinforcing plate 4 is preferably made of rubber material; when the object to be clamped by the mechanical hand is in a special shape, the plurality of clamping pieces 2 slide out of the inner wall of the cavity by different distances under the pushing of the gas, at this time, the reinforcing plate 4 forms a special surface together with the output degrees of the plurality of clamping pieces 2 and is attached to the surface of the object, and the rubber has friction, thereby strengthening the pressing effect of the plurality of clamping pieces 2 on the object.

[0036] With reference to Figures 1-3, a plurality of filling joint assemblies 5 are arranged between the adjacent clamping pieces 2, the plurality of filling joint assemblies 5 are evenly arranged in an array between the adjacent two mounting holes 12, each filling joint assembly 5 comprises a sleeve 51, a thimble 52 and an elastic piece 53, the sleeve 51 is fixedly connected to the side of the box body 1 away from the mounting hole 12, the thimble 52 is inserted into the sleeve 51, the thimble 52 is slidable along the sleeve 51, the elastic piece 53 is arranged in the sleeve 51, one end of the elastic piece 53 is fixedly connected to the bottom wall of the sleeve 51, and the other end is fixedly connected to the thimble 52; the elastic piece 53 pushes the thimble 52 to move in the direction close to the reinforcing plate 4 under the action of no external force, so that the reinforcing plate 4 is tightly pressed against the object, and the end of the thimble 52 close to the reinforcing plate 4 is arc-shaped.

[0037] With reference to Figure 1 and Figure 4 , a flow control assembly 6 is arranged in the cavity, the flow control assembly 6 comprises a gas permeable plate 61 and a baffle 62, a plurality of air holes are formed in the surface of the gas permeable plate 61, the gas permeable plate 61 is arranged between the air inlet hole 11 and the mounting hole 12, and the gas permeable plate 61 is fixedly connected to the inner wall of the cavity; the baffle 62 is arranged on the side of the gas permeable plate 61 close to the mounting hole 12, the baffle 62 comprises a frame body 621, a plurality of blocking strips 622 are fixedly connected in the frame body 621, the number of the blocking strips 622 is determined according to the number of rows of the air holes, the baffle 62 is slidably connected to the upper surface of the gas permeable plate 61, the area of the air holes covered by the blocking strips 622 can be controlled by pushing the baffle 62 to slide on the gas permeable plate 61, so as to control the flow of the air flow of the air holes; a driving assembly 7 is arranged on the side wall of the cavity, and the driving assembly 7 is used for controlling the baffle 62 to move along the gas permeable plate 61.

[0038] With reference to Figure 4 , the driving assembly 7 comprises a limiting plate 71, a jackscrew 72, a pushing plate 73 and a fixed plate 74, the limiting plate 71 is fixedly connected to the outer wall of the box body 1, the fixed plate 74 is arranged on the side of the limiting plate 71 away from the box body 1, the fixed plate 74 is arranged perpendicularly to the limiting plate 71, and the fixed plate 74 is fixedly connected to the limiting plate 71; the pushing plate 73 is arranged on the upper surface of the limiting plate 71, a stretching slot is formed in the side wall of the box body 1 corresponding to the pushing plate 73, the pushing plate 73 enters the cavity through the stretching slot and is fixedly connected to the side wall of the baffle 62, the pushing plate 73 is reciprocally movable along the stretching slot, thereby driving the baffle 62 to move along the surface of the gas permeable plate 61, and thereby controlling the covering amount of the blocking strips 622 to the air holes; the pushing plate 73 is fixedly connected with a rotating ring 731 on the side wall away from the baffle 62, the jackscrew 72 is rotatably connected to the rotating ring 731 through the fixed plate 74, and the jackscrew 72 is threadedly connected to the fixed plate 74; in this embodiment, the outer wall of the box body 1 is further fixedly connected with a monitoring meter, the monitoring meter is communicated with the cavity, and the monitoring meter is used for detecting the flow of the gas in the cavity; an operating rod 721 is arranged on the side of the jackscrew 72 away from the rotating ring 731, the operating rod 721 is overall L-shaped, and the operating rod 721 is arranged to facilitate driving the jackscrew 72 to rotate around the fixed plate 74.

[0039] The specific implementation principle of the pneumatic mechanical hand device of the bundling machine is as follows: the number of the mechanical hands on both sides of the object is determined according to the size of the object, and then the gas supply device is arranged in communication with the air inlet hole 11 of the mechanical hand; then the flow of the gas is adjusted according to the weight and other parameters of the object, and the specific mode is as follows: the operating rod 721 is rotated, the operating rod 721 drives the jackscrew 72 to rotate around the fixed plate 74, the jackscrew 72 drives the rotating ring 731 to move, the rotating ring 731 drives the push plate 73 to move along the stretching groove, the push plate 73 drives the baffle 62 to move, the movement of the baffle 62 can control the coverage rate of the baffle strip 622 on the baffle 62 to the air hole, at this time, the value of the detection meter is observed, and the value is adjusted until the required value is reached; at this time, the clamping piece 2 is driven by the gas to move along the mounting hole 12 to the direction close to the object, the clamping piece 2 is tightly pressed against the object, and the clamping operation is completed.

[0040] The specific embodiment is only an explanation of the application, and is not a limitation of the application. Those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, as long as the modifications are within the scope of the claims of the application and are protected by the patent law.

Claims

1. A pneumatic manipulator device for a strapping machine, characterized by: The utility model provides a kind of air pressure type object clamping device, including box (1), the cavity is opened inside, the side of cavity is equipped with air inlet (11), air inlet (11) is used to communicate with gas supply device to input gas into cavity by gas supply device;The opposite side of air inlet (11) is equipped with several mounting holes, and each mounting hole is slidably installed with clamping piece (2), and the gas in the cavity pushes clamping piece (2) to push in the direction of departing from air inlet (11), to this object.

2. The pneumatic manipulator device for a strapping machine according to claim 1, characterized in that: Each mounting hole (12) is rectangular, and several air inlets (11) are evenly arranged from top to bottom of the box (1);The peripheral side of each mounting hole (12) is provided with several sliding assemblies (3), and several sliding assemblies (3) are arranged on the inner wall of the cavity, each sliding assembly (3) includes sliding sleeve (31) and sliding rod (32), the bottom wall of sliding sleeve (31) is connected with the inner wall of the cavity, sliding rod (32) is inserted into sliding sleeve (31), and sliding rod (32) can reciprocate along sliding sleeve (31);The end of sliding rod (32) away from the bottom wall of sliding sleeve (31) is provided with a connecting piece (33), and the connecting piece (33) is fixedly connected with the sliding rod (32) and the side of the clamping piece (2) inserted into the cavity.

3. The air-operated mechanical hand device for strapping machines according to claim 2, characterized in that: The side of several clamping pieces (2) away from the connecting piece (33) is provided with a reinforcing plate (4), and the reinforcing plate (4) is fixedly connected with each clamping piece (2), the reinforcing plate (4) has elasticity, and the clamping plate can form a special plane with the output of several clamping pieces (2) relative to the cavity.

4. The air-operated mechanical hand device for strapping machines according to claim 2, characterized in that: Several caulking assemblies (5) are arranged between the two adjacent mounting holes (12), and the several caulking assemblies (5) are evenly arranged in an array between the two adjacent mounting holes (12);Each caulking assembly (5) includes a sleeve (51), a thimble (52) and a spring (53), the bottom wall of the sleeve (51) is fixedly connected with the side wall of the box (1), the thimble (52) is inserted into the sleeve (51) and can reciprocate along the sleeve (51), the spring (53) is arranged in the sleeve (51), and the two ends of the spring (53) are fixedly connected with the bottom wall of the sleeve (51) and the end of the thimble (52), respectively, and the spring (53) is used to push to move in the direction close to the object, to this object.

5. The air-operated mechanical hand device for strapping machines according to claim 1, characterized in that: The cavity is internally provided with a flow control assembly (6), the flow control assembly (6) comprising a gas-permeable plate (61) and a baffle (62), the gas-permeable plate (61) being provided with a plurality of air holes on a surface thereof, the gas-permeable plate (61) being arranged between the air inlet hole (11) and the mounting hole (12) and being fixedly connected to the inner wall of the cavity; the baffle (62) being arranged on the side of the gas-permeable plate (61) close to the mounting hole (12), the baffle (62) comprising a frame body (621) and a plurality of baffle strips (622) fixedly connected to the frame body (621), the number of the baffle strips (622) being determined according to the number of rows of the air holes, the baffle (62) being slidingly connected to the upper surface of the gas-permeable plate (61), the aperture of the air hole and the flow rate of the airflow entering the mounting hole (12) through the air hole being controlled by sliding the baffle (62) on the gas-permeable plate (61); the side wall of the cavity being provided with a driving assembly (7) for controlling the movement of the baffle (62) along the gas-permeable plate (61).

6. A pneumatic manipulator device for a strapping machine according to claim 5, characterized in that: The driving assembly (7) comprises a limiting plate (71), a jackscrew (72) and a push plate (73), the limiting plate (71) being fixedly connected to the outer wall of the box body (1), the limiting plate (71) being fixedly connected to the side wall thereof away from the box body (1) with a fixed plate (74) arranged perpendicularly to the limiting plate (71); the push plate (73) being arranged on the upper surface of the limiting plate (71), the side wall of the box body (1) being provided with a stretching slot corresponding to the push plate (73), the push plate (73) entering the cavity through the stretching slot and being fixedly connected to the side wall of the baffle (62); the side wall of the push plate (73) away from the baffle (62) being fixedly connected with a rotating ring (731), the jackscrew (72) being rotatably connected to the rotating ring (731) through the fixed plate (74), the jackscrew (72) being threadedly connected to the fixed plate (74).

7. The air-operated mechanical hand device for strapping machines according to claim 4, characterized in that: Each of the ejector pins (52) is arc-shaped on the side thereof away from the elastic member (53).

8. The air-operated mechanical hand device for strapping machines according to claim 6, characterized in that: The jackscrew (72) is provided with an operating rod (721) on the side thereof away from the rotating ring (731), the operating rod (721) being L-shaped as a whole.

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