Frame blowing and sucking separation suction cup

Abstract

The utility model relates to a frame blowing and sucking separation suction cup which comprises a positive pressure assembly, a negative pressure assembly and a buffering assembly. The positive pressure assembly comprises an upper gas distribution block, a lower gas distribution block and a positive pressure gas source connector, a positive pressure gas circuit is arranged in the upper gas distribution block, an inlet of the positive pressure gas circuit is communicated with the positive pressure gas source connector, and the positive pressure gas circuit is provided with a plurality of branches with outlets formed in the lower surface of the upper gas distribution block; the negative pressure assembly comprises an air suction block, kidney-shaped adsorption heads and a negative pressure air source connector, a negative pressure air path is arranged in the air suction block, an inlet of the negative pressure air path is communicated with the negative pressure air source connector, an outlet of the negative pressure air path is communicated with the kidney-shaped adsorption heads, and adsorption openings of all the kidney-shaped adsorption heads are flush; the buffer assembly comprises a pair of piston rods fixed to the upper surface of the air suction block and a pair of linear bearings arranged in the lower air distribution block, and the piston rods penetrate through the linear bearings. In the up-down overturning process of the frame blowing and sucking separation suction cup, a floating range exists between the positive pressure assembly and the negative pressure assembly, the acting force is small, and the completeness of a frame is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of suction cups, in particular to a frame blowing and suction separation suction cup. Background Art

[0002] Aluminum frames need to be assembled around the edges of photovoltaic modules for transportation and installation to protect the photovoltaic modules. During the automatic assembly of the aluminum frames, a suction mechanism is required to move the aluminum frames to the designated position. The objects involved here are collectively referred to as hardware rods. The specific objects and important dimensions are as follows:

[0003] 1. Aluminum frame as a whole: width ranges from 30mm-45mm;

[0004] 2. Long side aluminum frame: length ranges from 1650mm to 2650mm;

[0005] 3. Short side aluminum frame: length ranges from 900mm-1500mm.

[0006] During the process of clamping and transporting the aluminum frame, the suction cup needs to adapt to various postures and movements. At the same time, according to the requirements of the installation process, the aluminum frame also needs to be rotated 180° for subsequent assembly.

[0007] The suction cup in the prior art is composed of a long strip-shaped mounting block and a number of small suction cups arranged side by side at the bottom of the mounting block, each of which has an independent buffer spring. This has the following problems:

[0008] 1. The suction area of ​​the small suction cup is circular, with a small area and relatively small adsorption force.

[0009] 2. The distances between the suction cup components are of different lengths, resulting in poor accuracy and high difficulty in adjustment.

[0010] 3. There are many hardware fittings and the spring pressure is high, which can easily push the frame down and deform it.

[0011] Therefore be necessary to design a kind of new sucker structure to solve the above problems. Summary of the Invention

[0012] The main purpose of the utility model is to provide a frame blowing and suction separation suction cup, which can increase the adsorption area, reduce the downward pressure on the frame, and adapt to different lengths.

[0013] The utility model achieves the above-mentioned purpose through the following technical solutions: a frame blowing and suction separation suction cup, comprising a positive pressure component, a negative pressure component and a buffer component connecting the positive pressure component and the negative pressure component;

[0014] The positive pressure assembly includes an upper air block, a lower air block and a positive pressure air source connector. A positive pressure air circuit is provided in the upper air block, the inlet of the positive pressure air circuit is connected to the positive pressure air source connector, and the positive pressure air circuit has multiple outlets provided on the lower surface of the upper air block.

[0015] The negative pressure assembly includes an air suction block, a waist-shaped adsorption head provided on the lower surface of the air suction block, and a negative pressure gas source connector provided on the side of the air suction block. A negative pressure gas circuit is provided in the air suction block, the inlet of the negative pressure gas circuit is connected to the negative pressure gas source connector, and the outlet of the negative pressure gas circuit is connected to the waist-shaped adsorption head. The adsorption ports of all waist-shaped adsorption heads are flush.

[0016] The buffer assembly includes a pair of piston rods fixed to the upper surface of the air suction block and a pair of linear bearings arranged in the lower air distribution block, and the piston rods pass through the linear bearings.

[0017] Specifically, the upper air dividing block is further provided with a plurality of limit upper cavities that are not mutually ventilated with the positive pressure air path, the upper part of the lower air dividing block is provided with a limit lower cavity facing the limit upper cavity, the limit upper cavity has a single opening toward the limit lower cavity, the limit lower cavity is connected from top to bottom, the lower diameter of the limit lower cavity is smaller than the diameter of the limit upper cavity, and the limit upper cavity and the limit lower cavity are combined to form a limit cavity;

[0018] The buffer assembly also includes a limit pin located in the middle of the upper surface of the air suction block and a buffer spring passed through the limit pin. The two ends of the buffer spring are respectively abutted against the lower surface of the lower air distribution block and the upper surface of the air suction block. The head of the limit pin expands and contracts in the limit cavity. The outer diameter of the head is not larger than the inner diameter of the upper limit cavity and larger than the minimum inner diameter of the lower limit cavity. The body of the limit pin passes through the lower limit cavity, and the outer diameter of the body does not match the minimum inner diameter of the lower limit cavity.

[0019] Furthermore, there are multiple negative pressure components and they are arranged side by side below the positive pressure component. The number of the limiting cavities, the number of the negative pressure components and the number of the buffer components are the same. Each buffer component is respectively connected to the positive pressure component and each negative pressure component.

[0020] The beneficial effects of the technical solution of this utility model are:

[0021] 1. When the suction direction is downward, the combined weight of the negative pressure component, the frame load, and the spring force balance the tension applied to the stop pin by the positive pressure component. When the suction direction is upward, the combined weight of the negative pressure component, the frame load, and the spring force balance the air pressure applied to the piston rod by the compressed gas. During the upside-down flipping process, there is a floating range between the positive and negative pressure components, and the applied force is relatively small, maintaining the integrity of the frame.

[0022] 2. The waist-shaped adsorption head lengthens the length of a single adsorption area, and the number of adsorption points is correspondingly reduced, which makes the negative pressure smaller and appropriately reduces the adsorption force. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of the blowing and suction separation suction cup of the frame of the embodiment;

[0024] Figure 2 It is a half-section view of the frame blowing and suction separation suction cup of the embodiment.

[0025] The numbers in the figure represent:

[0026] 1-positive pressure assembly, 11-upper gas block, 111-positive pressure gas circuit, 112-limit upper chamber, 12-lower gas block, 121-limit lower chamber, 13-positive pressure gas source connector;

[0027] 2-negative pressure assembly, 21-suction block, 211-negative pressure air circuit, 22-waist-shaped adsorption head, 23-negative pressure air source connector;

[0028] 3-buffer assembly, 31-piston rod, 32-linear bearing, 33-limit pin, 34-buffer spring. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to specific embodiments.

[0030] Example:

[0031] like Figure 1 and Figure 2 As shown, a frame blowing and suction separation suction cup of the present invention includes a positive pressure component 1, a plurality of negative pressure components 2 arranged side by side below the positive pressure component 1, and a plurality of buffer components 3 respectively connecting the positive pressure component 1 and each negative pressure component 2.

[0032] like Figure 2 As shown, the positive pressure assembly 1 includes an upper air dividing block 11, a lower air dividing block 12 and a positive pressure air source connector 13. The upper air dividing block 11 is provided with a positive pressure air circuit 111 and a plurality of upper limiting chambers 112 that are not mutually ventilated. The upper portion of the lower air dividing block 12 is provided with a lower limiting chamber 121 that is directly opposite to the upper limiting chamber 112. The inlet of the positive pressure air circuit 111 is connected to the positive pressure air source connector 13. The positive pressure air circuit 111 has a plurality of branches with outlets provided on the lower surface of the upper air dividing block 11. The upper limiting chamber 112 has a single opening toward the lower limiting chamber 121. The lower limiting chamber 121 is connected from top to bottom. The lower diameter of the lower limiting chamber 121 is smaller than that of the upper limiting chamber 112. The upper limiting chamber 112 and the lower limiting chamber 121 are combined to form a limiting chamber. The number of limiting chambers, the number of negative pressure assemblies 2 and the number of buffer assemblies 3 are the same.

[0033] Because the positive pressure assembly 1 contains independent positive pressure air circuit 111 and limiting cavity, it is a modular structure for ease of processing. The positive pressure air circuit 111 is used to supply and release high-pressure air and limit the axial movement range of the piston rod 31, while the limiting cavity is used to limit the axial movement range of the limiting pin 33.

[0034] like Figure 2 As shown, the negative pressure component 2 includes an air suction block 21, a waist-shaped adsorption head 22 arranged on the lower surface of the air suction block 21, and a negative pressure air source connector 23 arranged on the side of the air suction block 21. A negative pressure air path 211 is provided in the air suction block 21, and the inlet of the negative pressure air path 211 is connected to the negative pressure air source connector 23, and the outlet of the negative pressure air path 211 is connected to the waist-shaped adsorption head 22, and the adsorption ports of all waist-shaped adsorption heads 22 are flush.

[0035] The negative pressure assembly 2 itself is similar to a common suction cup structure, except that the waist-shaped suction head 22 has a longer single suction area, resulting in fewer suction points. This adapts to the suction requirements of long rectangular frames while also reducing the negative pressure and appropriately lowering the suction force. Although all negative pressure assemblies 2 can float independently, the suction ports of the waist-shaped suction head 22 are essentially in the same plane, allowing them to adapt to the surface of the frame and jointly absorb it.

[0036] like Figure 2 As shown, the buffer assembly 3 includes a pair of piston rods 31 fixed to the upper surface of the air suction block 21, a pair of linear bearings 32 arranged in the lower air dividing block 12, a limit pin 33 located in the middle of the upper surface of the air suction block 21 and a buffer spring 34 passed by the limit pin 33. The piston rod 31 passes through the linear bearing 32, and the two ends of the buffer spring 34 respectively abut against the lower surface of the lower air dividing block 12 and the upper surface of the air suction block 21. The head of the limit pin 33 retracts and contracts in the limit cavity, and the outer diameter of the head is not larger than the inner diameter of the limit upper cavity 112 and larger than the minimum inner diameter of the limit lower cavity 121. The body of the limit pin 33 passes through the limit lower cavity 121, and the outer diameter of the body does not match the minimum inner diameter of the limit lower cavity 121.

[0037] The positive pressure component 1 has a pair of limiting cavities. The positive pressure component 1 has a double-rod cylinder structure. Each branch of the positive pressure air circuit 111 is equivalent to a rodless cavity in the cylinder, and the piston rod 31 is the cylinder axis. When air is supplied to the limiting cavity through the positive pressure air circuit 111, the air pressure will cause the piston rod 31 to move in a first direction. The first direction refers to the direction of the negative pressure component 2 relative to the positive pressure component 1, so it appears as the extension of the negative pressure component 2. When the cylinder is exhausted, the piston rod 31 moves in a second direction. The second direction refers to the direction of the positive pressure component 1 relative to the negative pressure component 2, so it appears as the retraction of the negative pressure component 2. The buffer spring 34 causes the positive pressure component 1 and the negative pressure component 2 to have a tendency to move relatively away from each other. The minimum elastic force of the buffer spring 34 will be greater than the total weight of the negative pressure component 2, the two piston rods 31 and the limiting pin 33. When the waist-shaped suction head 22 is facing downward, the buffer spring 34 can buffer the pressure of the frame blowing and suction separation suction cup on the frame. When the waist-shaped suction head 22 is facing upward, the double-rod cylinder structure can provide a floating support, avoiding the force applied to the frame from two aspects, thereby avoiding deformation of the frame. Because the frame blowing and suction separation suction cup itself will rotate during use, the first direction and the second direction here refer to relative directions, not absolute directions. The piston rod 31 is precisely matched with the linear bearing 32, so that the positive pressure component 1 and the negative pressure component 2 move along a determined relative direction. If the force of the entire frame blowing and suction separation suction cup is small, the limit pin 33 and the buffer spring 34 can also be omitted.

[0038] The usage process of this frame blowing and suction separation suction cup is as follows: the whole body approaches the frame from top to bottom, the waist-shaped suction head 22 is pressed against the frame downward, and the buffer spring 34 will cause the negative pressure component 2 to be appropriately compressed when it is subjected to the reaction force of the frame to prevent the frame from being bent, and then negative pressure is generated at each negative pressure air source connector 23, and the waist-shaped suction head 22 sucks the frame together; when the whole body is flipped up and down 180°, the negative pressure component 2 is equivalent to being supported by the air pressure, and the buffer component 3 can provide floating space.

[0039] When the air is inhaled downward, the combined weight of the negative pressure assembly 2, the frame load, and the spring force balances the tension applied to the stop pin 33 by the positive pressure assembly 1. When the air is inhaled upward, the combined weight of the negative pressure assembly 2, the frame load, and the spring force balance the air pressure applied to the piston rod 31 by the compressed gas. During the upside-down flipping process, there is a floating range between the positive pressure assembly 1 and the negative pressure assembly 2, and the applied force is relatively small, keeping the frame intact.

[0040] The above descriptions are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A frame blowing and suction separation suction cup, characterized by: It includes a positive pressure component, a negative pressure component and a buffer component connecting the positive pressure component and the negative pressure component; The positive pressure assembly includes an upper air block, a lower air block and a positive pressure air source connector. A positive pressure air circuit is provided in the upper air block, the inlet of the positive pressure air circuit is connected to the positive pressure air source connector, and the positive pressure air circuit has multiple outlets provided on the lower surface of the upper air block. The negative pressure assembly includes an air suction block, a waist-shaped adsorption head provided on the lower surface of the air suction block, and a negative pressure gas source connector provided on the side of the air suction block. A negative pressure gas circuit is provided in the air suction block, the inlet of the negative pressure gas circuit is connected to the negative pressure gas source connector, and the outlet of the negative pressure gas circuit is connected to the waist-shaped adsorption head. The adsorption ports of all waist-shaped adsorption heads are flush. The buffer assembly includes a pair of piston rods fixed to the upper surface of the air suction block and a pair of linear bearings arranged in the lower air distribution block, and the piston rods pass through the linear bearings.

2. The frame blowing and suction separation suction cup according to claim 1, characterized in that: The upper air dividing block is further provided with a plurality of upper limiting chambers which are not in communication with the positive pressure air path. The upper portion of the lower air dividing block is provided with a lower limiting chamber which is opposite to the upper limiting chamber. The upper limiting chamber has a single opening facing the lower limiting chamber. The lower limiting chamber is connected from top to bottom. The lower diameter of the lower limiting chamber is smaller than that of the upper limiting chamber. The upper limiting chamber and the lower limiting chamber are combined to form a limiting chamber. The buffer assembly also includes a limit pin located in the middle of the upper surface of the air suction block and a buffer spring passed through the limit pin. The two ends of the buffer spring are respectively abutted against the lower surface of the lower air distribution block and the upper surface of the air suction block. The head of the limit pin expands and contracts in the limit cavity. The outer diameter of the head is not larger than the inner diameter of the upper limit cavity and larger than the minimum inner diameter of the lower limit cavity. The body of the limit pin passes through the lower limit cavity, and the outer diameter of the body does not match the minimum inner diameter of the lower limit cavity.

3. The frame blowing and suction separation suction cup according to claim 2, characterized in that: There are multiple negative pressure components and they are arranged side by side below the positive pressure component. The number of the limiting cavities, the number of the negative pressure components and the number of the buffer components are the same. Each buffer component is respectively connected to the positive pressure component and each negative pressure component.

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