Powder screening and switching device for aluminum composite panel

Abstract

The utility model discloses a kind of powder screening switching devices for aluminum composite panel, it includes: rack, first steel wire, second steel wire, first guide roller, second guide roller, first take-up roller, second take-up roller and sieve belt, first guide roller and second guide roller are arranged in the top of material receiving box front and back two sides, sieve belt is movably arranged on first guide roller and second guide roller and passes through above material receiving box, sieve belt includes first screen cloth, second screen cloth and third screen cloth connected in order, first screen cloth front end is provided with first baffle, first steel wire is wound and arranged on first take-up roller, and one end of first steel wire is connected with first baffle, third screen cloth tail end is provided with second baffle, second steel wire is wound and arranged on second take-up roller, and one end of second steel wire is connected with second baffle, screening work is carried out by forward or backward movement of sieve belt to switch screen cloth, and cleaning maintenance operation is simple.

Description

Technical Field

[0001] This utility model relates to the field of aluminum composite panel production technology, and in particular to a powder screening and switching device for aluminum composite panels. Background Technology

[0002] Powder is the raw material for producing aluminum composite panels. It needs to be screened to prevent large particles and lumps from clogging the silo.

[0003] In the prior art, utility model patent application number 2016203177012 discloses a production equipment for aluminum composite panels, which uses a screen to screen powder to avoid clogging of powder in the hopper and reduce the adverse effects on the production of aluminum composite panels.

[0004] In actual production, large particles and lumps trapped on the screen cannot be automatically cleaned, requiring machine shutdown for cleaning and maintenance, which affects normal screening production. Furthermore, the mesh size of the screen is usually fixed and cannot be adjusted, resulting in poor adaptability to different powder particle sizes, which requires improvement. Utility Model Content

[0005] The purpose of this invention is to provide a powder screening and switching device for aluminum composite panels, which improves the convenience of screen cleaning, maintenance and switching.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A powder screening and switching device for aluminum composite panels includes: a frame, a first steel wire, a second steel wire, a first guide roller, a second guide roller, a first take-up and unwound roller, a second take-up and unwound roller, and a screen belt. A receiving box is provided on the top of the frame. The first and second guide rollers are located on the front and rear sides of the top of the receiving box. The screen belt is movably mounted on the first and second guide rollers and passes above the receiving box. The screen belt includes a first screen, a second screen, and a third screen connected sequentially. A first stop bar is provided at the front end of the first screen. The first take-up and unwound roller is located on one side of the lower part of the frame and below the first guide roller. The first steel wire is wound around the first take-up and unwound roller, with one end connected to the first stop bar. A second stop bar is provided at the rear end of the third screen. The second take-up and unwound roller is located on one side of the lower part of the frame and below the second guide roller. The second steel wire is wound around the second take-up and unwound roller, with one end connected to the second stop bar.

[0008] The receiving box is vertically equipped with baffles on both sides of the screen belt path at its top.

[0009] The baffle is provided with a crossbeam located above the screen belt path, and a feeding hopper pointing downwards onto the crossbeam.

[0010] The receiving box is equipped with a feeding hopper at the bottom, and the feeding hopper is equipped with a discharge valve at the bottom.

[0011] The first take-up and untake-up roller is provided with a first synchronous pulley at one end, and the second take-up and untake-up roller is provided with a second synchronous pulley corresponding to the first synchronous pulley at one end. A synchronous belt is provided between the first synchronous pulley and the second synchronous pulley.

[0012] The first wire is wound in the opposite direction to the second wire on the first take-up and untake-down drum.

[0013] A third baffle is provided at the connection between the first screen and the second screen, and a fourth baffle is provided at the connection between the third screen and the second screen.

[0014] The first, second, third, and fourth stop bars are all made of rubber strips with a T-shaped cross section.

[0015] The first, second, and third screens may have the same or different mesh counts.

[0016] The frame is equipped with a motor that drives the first take-up or the second take-up roller to rotate.

[0017] The beneficial effects of this utility model are as follows: A powder screening and switching device for aluminum composite panels, in which the powder in the hopper flows downward to the screen belt, is screened by the screen belt, and the screening efficiency is improved by the slight reciprocating movement of the screen belt. When switching is required, the screen belt is moved forward or backward, and the first screen, second screen or third screen is selected to be located below the hopper for screening. The switching operation is convenient and facilitates the cleaning and maintenance of the screen belt. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 yes Figure 1 A schematic diagram of the structure after the screen belt moves and switches. Detailed Implementation

[0020] The following is combined with Figures 1-2 The technical solution of this utility model will be further illustrated through specific embodiments.

[0021] like Figure 1The aluminum composite panel powder screening and switching device shown includes: a frame 1, a first steel wire 19, a second steel wire 9, a first guide roller 21, a second guide roller 22, a first take-up and unwound roller 18, a second take-up and unwound roller 14, and a screen belt. A receiving box 2 is provided on the top of the frame 1. The first guide roller 21 and the second guide roller 22 are provided on the front and rear sides of the top of the receiving box 2. The screen belt is movably arranged on the first guide roller 21 and the second guide roller 22 and passes over the receiving box 2. The screen belt is supported by the rolling motion of the first guide roller 21 and the second guide roller 22.

[0022] A baffle 4 is vertically installed at the top of the receiving box 2, located on both sides of the screen belt path, to prevent powder from falling directly from the sides of the screen belt. A crossbeam 5 is installed at the top of the baffle 4, above the screen belt path. A feeding hopper 3 is installed on the crossbeam 5, pointing downwards towards the screen belt. The powder for aluminum composite panels in the feeding hopper 3 flows downwards onto the screen belt, where it is screened. The slight reciprocating movement of the screen belt improves the screening efficiency. The qualified powder after screening falls into the receiving box 2 below.

[0023] In this embodiment, a hopper 23 is provided at the bottom of the receiving box 2 for temporary storage of qualified powder. A discharge valve 24 is provided at the bottom of the hopper 23, such as... Figure 2 As shown, opening the discharge valve 24 will discharge the screened powder.

[0024] like Figure 1 As shown, the screen belt includes a first screen 11, a second screen 12, and a third screen 13 connected sequentially. A first baffle 20 is provided at the front end of the first screen 11, and the first baffle 20 can be connected and fixed to the front end of the first screen 11 by rivets, resulting in a stable structure. A second baffle 8 is provided at the rear end of the third screen 13, a third baffle 6 is provided at the connection between the first screen 11 and the second screen 12, and a fourth baffle 7 is provided at the connection between the third screen 13 and the second screen 12; all of these can be fixed by rivets. In this embodiment, the first baffle 20, the second baffle 8, the third baffle 6, and the fourth baffle 7 are all made of T-shaped rubber strips, which have good toughness, and the T-shaped rubber strips have a good blocking effect on the powder, preventing the powder from rolling out of the screening boundary during the screening process.

[0025] The first take-up and unwind roll 18 is set on one side of the lower part of the frame 1 and below the first guide roll 21. The first steel wire 19 is wound around the first take-up and unwind roll 18, and one end of the first steel wire 19 is connected to the first stop bar 20, so that the first stop bar 20 can be pulled.

[0026] The second take-up and unwind roll 14 is set on one side of the lower part of the frame 1 and located below the second guide roll 22. The second steel wire 9 is wound around the second take-up and unwind roll 14, and one end of the second steel wire 9 is connected to the second stop bar 8. The second stop bar 8 is pulled to achieve tensioning of the screen belt.

[0027] like Figure 2 As shown, the second steel wire 9 is wound and unwound by the second take-up and unwound roller 14, which realizes the forward or backward movement of the screen belt. The first screen 11, the second screen 12 or the third screen 13 are switched to be located below the feed hopper 3 for screening. The operation is convenient and also facilitates the cleaning and maintenance of other parts of the screen belt. Large particles and lumps can be removed by vacuuming other parts of the screen belt.

[0028] A first synchronous pulley 17 is provided at one end of the first take-up and unwind roll 18, and a second synchronous pulley 15 corresponding to the first synchronous pulley 17 is provided at the end of the second take-up and unwind roll 14. A synchronous belt 16 is provided between the first synchronous pulley 17 and the second synchronous pulley 15 to achieve synchronization of the first take-up and unwind roll 18 and the second take-up and unwind roll 14.

[0029] The winding direction of the first steel wire 19 on the first take-up and unwinding roller 18 is opposite to the winding direction of the second steel wire 9 on the second take-up and unwinding roller 14. That is to say, when the first take-up and unwinding roller 18 unwinds the first steel wire 19, the second take-up and unwinding roller 14 simultaneously winds the second steel wire 9, thereby realizing the movement of the screen belt.

[0030] like Figure 1 As shown, the frame 1 is equipped with a motor 10 that drives the first take-up and untake-down roller 18 or the second take-up and untake-down roller 14 to rotate. The motor 10 can be controlled by a PLC to achieve small-angle forward and reverse rotation of the motor 10, realize micro-amplitude reciprocating movement of the screen belt, improve screening efficiency, and can also switch the first screen 11, the second screen 12 or the third screen 13 to the area below the feeding hopper 3 for screening work by rotating the motor 10, improving the convenience of switching and cleaning maintenance.

[0031] The mesh counts of the first screen 11, the second screen 12, and the third screen 13 may be the same or different. When the mesh counts of the first screen 11, the second screen 12, and the third screen 13 are the same, switching between them is merely for maintenance convenience. When the mesh counts of the first screen 11, the second screen 12, and the third screen 13 are different, switching between them is to meet the screening needs of three different types of powder, thus broadening the applicability.

[0032] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A powder screening and switching device for aluminum composite panels, characterized in that, include: The machine comprises a frame, a first steel wire, a second steel wire, a first guide roller, a second guide roller, a first take-up / unwind roller, a second take-up / unwind roller, and a screen belt. A receiving box is located at the top of the frame. The first and second guide rollers are positioned on the front and rear sides of the top of the receiving box. The screen belt is movably mounted on the first and second guide rollers and passes above the receiving box. The screen belt includes a first screen, a second screen, and a third screen connected sequentially. A first stop bar is located at the front end of the first screen. The first take-up / unwind roller is located on one side of the lower part of the frame and below the first guide roller. The first steel wire is wound around the first take-up / unwind roller, with one end connected to the first stop bar. A second stop bar is located at the rear end of the third screen. The second take-up / unwind roller is located on one side of the lower part of the frame and below the second guide roller. The second steel wire is wound around the second take-up / unwind roller, with one end connected to the second stop bar.

2. The powder screening and switching device for aluminum composite panels according to claim 1, characterized in that, The top of the receiving box is vertically equipped with baffles located on both sides of the screen belt path.

3. The powder screening and switching device for aluminum composite panels according to claim 2, characterized in that, The top of the baffle is provided with a crossbeam located above the screen belt path, and a feeding hopper pointing downwards onto the crossbeam is provided.

4. The powder screening and switching device for aluminum composite panels according to claim 1, characterized in that, The receiving box is equipped with a discharge hopper at the bottom, and the discharge hopper is equipped with a discharge valve at the bottom.

5. The powder screening and switching device for aluminum composite panels according to claim 1, characterized in that, The first take-up and unwind roll is provided with a first synchronous pulley at one end, and the second take-up and unwind roll is provided with a second synchronous pulley corresponding to the first synchronous pulley at one end. A synchronous belt is provided between the first synchronous pulley and the second synchronous pulley.

6. The powder screening and switching device for aluminum composite panels according to claim 5, characterized in that, The winding direction of the first steel wire on the first take-up and unwinding drum is opposite to the winding direction of the second steel wire on the second take-up and unwinding drum.

7. The powder screening and switching device for aluminum composite panels according to claim 1, characterized in that, A third baffle is provided at the connection between the first screen and the second screen, and a fourth baffle is provided at the connection between the third screen and the second screen.

8. The powder screening and switching device for aluminum composite panels according to claim 7, characterized in that, The first, second, third, and fourth stop bars are all made of rubber strips with a T-shaped cross section.

9. The powder screening and switching device for aluminum composite panels according to claim 7, characterized in that, The first, second, and third screens may have the same or different mesh counts.

10. The powder screening and switching device for aluminum composite panels according to claim 7, characterized in that, The frame is equipped with a motor that drives the first take-up or the second take-up roller to rotate.

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