An automatic latex matrix thickness adjustment device

Abstract

This utility model discloses an automatic latex matrix thickness adjustment device, including a frame. The two ends of the right conveying roller are movably connected to the front and rear side plates of the frame via bearings. A pressure roller adjustment support frame is fixed to the top surface of each of the front and rear side beams of the frame. The pressure roller adjustment support frame includes a transverse beam. Vertical columns are fixed to the left, middle, and right parts of the bottom surface of the transverse beam. The bottom ends of the vertical columns are fixed to the top surface of the corresponding side beams of the frame. Vertical guide strips are formed on the opposite walls of each pair of adjacent vertical columns. A lifting block is inserted between two corresponding vertical columns, and two corresponding vertical guide strips are inserted into vertical guide grooves formed in the middle of the left and right side plates of the corresponding lifting block. This device can automatically adjust the height of the two pressure rollers and ensure horizontal lifting, thereby changing the flattening thickness of the latex matrix. It offers fast, accurate, and precise adjustment with good results.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment manufacturing technology, and more specifically to an automatic latex matrix thickness adjustment device. Background Technology

[0002] In the production of emulsion explosives, the extruded latex matrix needs to be spread evenly on a conveyor belt. This requires the use of pressure rollers to flatten it evenly. However, the distance between the existing pressure rollers and the top surface of the conveyor belt needs to be adjusted manually. This adjustment is cumbersome and cannot be automatically adjusted as needed. Furthermore, the conveyor belt must maintain normal operation during manual adjustment, which greatly increases the difficulty. In addition, the manual adjustment has poor precision, resulting in the latex matrix not being flattened to the required thickness. Multiple adjustments are required to achieve the desired thickness, leading to low adjustment efficiency. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic latex matrix thickness adjustment device. It can automatically adjust the height of the two pressure rollers and ensure that the pressure rollers rise and fall horizontally, thereby changing the flattening thickness of the latex matrix. The adjustment is fast, accurate, precise, and effective.

[0004] The solution of this utility model to the aforementioned technical problem is:

[0005] An automatic latex matrix thickness adjustment device includes a frame, with the two ends of the right conveying roller movably connected to the front and rear side plates of the frame via bearings, and a pressure roller adjustment support frame fixed on the top surface of the front and rear side beams of the frame.

[0006] The pressure roller adjustment support frame includes a transverse beam. Vertical columns are fixed to the left, middle and right sides of the bottom surface of the transverse beam. The bottom end of the vertical column is fixed to the top surface of the corresponding side beam of the frame. Vertical guide strips are formed on the opposite wall surfaces of each pair of adjacent vertical columns. The lifting block is inserted between the corresponding two vertical columns. The corresponding two vertical guide strips are inserted into the vertical guide grooves formed in the middle of the left and right side plates of the corresponding lifting block.

[0007] A worm gear screw jack is fixed to the top surface of the corresponding position of the horizontal beam above all the lifting blocks. The bottom end of the lifting screw of the worm gear screw jack extends out of the bottom end of the corresponding vertical through hole formed on the horizontal beam and is fixed to the top surface of the corresponding lifting block.

[0008] A pressure roller is provided between the two corresponding lifting blocks. The two ends of the central rotating shaft of the pressure roller are movably connected to the two lifting blocks through bearings. The bottom surface of the pressure roller is close to the top surface of the upper part of the conveyor steel belt tensioned on the right conveyor roller.

[0009] Limiting bending pieces are fixed to the upper and lower parts of the outer side walls of the two lifting blocks on one side. An upper connecting seat is fixed at the corresponding position on the outer side wall of the transverse beam. An upper proximity switch is fixed on the upper connecting seat. The sensing end of the upper proximity switch faces the upper transverse plate of the upper limiting bending piece. A lower proximity switch is fixed on the outer side wall of the side beam of the frame below the lower bending piece. The top sensing end of the lower proximity switch faces the bottom surface of the lower transverse bending plate of the lower bending piece.

[0010] A vertical connecting rod is fixed on the outer wall of the frame on the right side of the lifting block. A laser rangefinder is fixed on the top of the vertical connecting rod. The vertical connecting rod is inserted into a through hole formed on the transverse bending plate of the lower bending piece. The laser of the laser rangefinder is irradiated onto the top surface of the corresponding transverse bending plate.

[0011] The outstanding effect of this utility model is:

[0012] It can automatically adjust the height of the two pressure rollers and ensure that the pressure rollers rise and fall horizontally, thereby changing the flattening thickness of the latex matrix. Its adjustment is fast, accurate, precise, and effective. Attached Figure Description

[0013] Figure 1 This is a partial top view of the present invention;

[0014] Figure 2 This is a partial side view of the present invention. Detailed Implementation

[0015] For example, see below. Figures 1 to 2 As shown, an automatic latex matrix thickness adjustment device includes a frame 10. The two ends of the right conveying roller 11 are movably connected to the front and rear side plates of the frame 10 via bearings. At the same time, a left drive roller is provided on the left side of the frame 10. The conveying steel belt 12 is tensioned on the right conveying roller 11 and the left drive roller (since the conveying structure at the frame 10 is a conventional structure, the left drive roller and other components are omitted in the figure).

[0016] Pressure roller adjustment support frame 20 is fixed on the top surface of the front and rear beams of the frame 10.

[0017] The pressure roller adjustment support frame 20 includes a transverse beam 21. Vertical columns 22 are fixed to the left, middle and right sides of the bottom surface of the transverse beam 21. The bottom end of the vertical column 22 is fixed to the top surface of the corresponding side beam of the frame 10. Vertical guide strips 23 are formed on the opposite wall surfaces of each pair of adjacent vertical columns 22. Lifting blocks 24 are inserted between the corresponding two vertical columns 22. The corresponding two vertical guide strips 23 are inserted into the vertical guide grooves formed in the middle of the left and right side plates of the corresponding lifting blocks 24.

[0018] A worm gear screw jack 30 is fixed to the top surface of the corresponding position of the transverse beam 21 above all lifting blocks 24. The bottom end of the lifting screw 310 of the worm gear screw jack 30 extends out of the bottom end of the corresponding vertical through hole formed on the transverse beam 21 and is fixed to the top surface of the corresponding lifting block 24. A geared motor 31 is fixed to the housing of the two worm gear screw jacks 30 on one side. One end of the worm of the worm gear screw jack 30 extends into the gearbox of the geared motor 31 (in this embodiment, the geared motor 31 consists of a gearbox and a motor). Fixed to the top of the gearbox, the end of the motor's output shaft extends into the gearbox and is connected to the input gear inside via a spline connection (this is a conventional structure and will not be described in detail here). When the geared motor 31 runs, it will drive the worm of the worm gear screw jack 30 to rotate. A handwheel 32 is fixed to the outer end of the worm of the worm gear screw jack 30 on the other side. The handwheel 32 can be manually adjusted by manually rotating the handwheel 32 when the geared motor 31 is not used.

[0019] A pressure roller 40 is provided between two corresponding lifting blocks 24. The two ends of the central rotating shaft of the pressure roller 40 are movably connected to the two lifting blocks 24 through bearings. The bottom surface of the pressure roller 40 is close to the top surface of the upper part of the conveyor steel belt 12 tensioned on the right conveyor roller body 11.

[0020] Furthermore, buffer springs 1 are fixed to the left and right sides of the bottom surface of the lifting block 24, and the bottom end of the buffer spring 1 presses against the top surface of the side beam of the frame 10. The buffer spring 1 can buffer the lifting of the lifting block 24, ensuring the stability of the lifting of the lifting block 24.

[0021] Furthermore, limit bending pieces 25 are fixed to the upper and lower parts of the outer side walls of the two lifting blocks 24 on one side. An upper connecting seat is fixed at the corresponding position on the outer side wall of the transverse beam 21. An upper proximity switch 2 is fixed on the upper connecting seat. The sensing end of the upper proximity switch 2 faces the upper transverse plate of the upper limit bending piece 25. A lower proximity switch 3 is fixed on the outer side wall of the side beam of the frame 10 below the lower limit bending piece 25. The top sensing end of the lower proximity switch 3 faces the bottom surface of the lower transverse bending plate 251 of the lower limit bending piece 25.

[0022] Furthermore, a vertical connecting rod 26 is fixed on the outer wall of the frame 10 on the right side of the lifting block 24. A laser rangefinder 27 is fixed on the top of the vertical connecting rod 26. The vertical connecting rod 26 is inserted into a through hole formed on the transverse bending plate 251 of the lower limiting bending piece 25. The laser of the laser rangefinder 27 irradiates the top surface of the corresponding transverse bending plate 251.

[0023] Furthermore, the two ends of the connecting rod 4 are connected to the worms of the two corresponding worm gear screw jacks 30 via couplings.

[0024] The worm gear screw jack 30 and the geared motor 31 in this embodiment are both conventional structures, and will not be described in detail here.

[0025] In this embodiment, all electrical components are electrically connected to the control host via electrical connection lines, and the operation is controlled by the control host. This is a conventional structure and will not be described in detail here.

[0026] In this embodiment, the latex matrix is ​​extruded from the discharge port on the right side onto the upper right side of the upper belt of the conveyor steel belt 12 and conveyed to the left. It is then compressed by two pressure rollers 40, flattening the latex matrix and laying it on the top surface of the upper belt of the conveyor steel belt 12. When the thickness of the flattened latex matrix needs to be adjusted, the control host can control the corresponding two reduction motors 31 to operate, driving the corresponding two worm gear screw jacks 30. The connecting rod 4 enables the other two worm gear screw jacks 30 to operate synchronously, achieving synchronous lifting or lowering of the two pressure rollers 40, thereby changing the thickness of the flattened latex matrix. During this adjustment, the transverse bending plate 251 also moves up and down. The laser distance sensor 27 can detect the lifting distance of the transverse bending plate 251 by irradiating it with laser light. When the adjustment distance meets the required value, the adjustment is complete. At this point, the control host controls the corresponding reduction motor 31 in the control box to stop operating. The adjustment is convenient, accurate, and effective.

[0027] Meanwhile, in this embodiment, the lifting position of the lifting block 24 is limited by the upper proximity switch 2 and the lower proximity switch 3. When the upper proximity switch 2 senses the upper horizontal plate of the upper limiting bending plate 25, it indicates that the lifting block 24 has been raised to the maximum height. At this time, the control host will control the corresponding reduction motor 31 to stop running. Correspondingly, when the top sensing end of the lower proximity switch 3 is facing the bottom surface of the lower horizontal bending plate 251 of the lower limiting bending plate 25, it indicates that the lifting block 24 has been lowered to the lowest position. At this time, the control host will control the corresponding reduction motor 31 to stop running.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A device for automatically adjusting the thickness of a rubber substrate, comprising a frame (10), the two ends of a right conveying roller body (11) being movably connected to the front and rear side plates of the frame (10) through bearings, characterized in that: The front and rear beams of the frame (10) are each fixed with a pressure roller adjustment support frame (20). The pressure roller adjustment support frame (20) includes a transverse beam (21). Vertical columns (22) are fixed on the left, middle and right sides of the bottom surface of the transverse beam (21). The bottom end of the vertical column (22) is fixed on the top surface of the corresponding side beam of the frame (10). Vertical guide strips (23) are formed on the opposite wall surfaces of each pair of adjacent vertical columns (22). The lifting block (24) is inserted between the corresponding two vertical columns (22). The corresponding two vertical guide strips (23) are inserted in the vertical guide groove formed in the middle of the left and right side plates of the corresponding lifting block (24). All the top surfaces of the corresponding positions of the horizontal beams (21) above the lifting blocks (24) are fixed with worm gear screw jacks (30). The bottom end of the lifting screw (310) of the worm gear screw jack (30) extends out of the bottom end of the corresponding vertical through hole formed on the horizontal beam (21) and is fixed on the top surface of the corresponding lifting block (24). A pressure roller (40) is provided between the two corresponding lifting blocks (24). The two ends of the central rotating shaft of the pressure roller (40) are movably connected to the two lifting blocks (24) through bearings. The bottom surface of the pressure roller (40) is close to the top surface of the upper part of the conveyor steel belt (12) tensioned on the right conveyor roller body (11).

2. An automatic device for adjusting the thickness of a latex substrate according to claim 1, characterized in that: The bottom surface of the lifting block (24) is fixed with buffer springs (1) on the left and right sides, and the bottom end of the buffer springs (1) presses against the top surface of the side beam of the frame (10).

3. An automatic device for adjusting the thickness of a latex substrate according to claim 1, characterized in that: Limiting bending pieces (25) are fixed on the upper and lower parts of the outer side walls of the two lifting blocks (24) on one side. An upper connecting seat is fixed at the corresponding position on the outer side wall of the transverse beam (21). An upper proximity switch (2) is fixed on the upper connecting seat. The sensing end of the upper proximity switch (2) faces the upper transverse plate of the upper limiting bending piece (25). A lower proximity switch (3) is fixed on the outer side wall of the side beam of the frame (10) below the lower limiting bending piece (25). The top sensing end of the lower proximity switch (3) faces the bottom surface of the lower transverse bending plate (251) of the lower limiting bending piece (25).

4. The automatic latex matrix thickness adjustment device according to claim 3, characterized in that: A vertical connecting rod (26) is fixed on the outer wall of the frame (10) on the right side of the lifting block (24). A laser range sensor (27) is fixed on the top of the vertical connecting rod (26). The vertical connecting rod (26) is inserted into the through hole formed on the transverse bending plate (251) of the lower limiting bending plate (25). The laser of the laser range sensor (27) irradiates the top surface of the corresponding transverse bending plate (251).

5. An automatic device for adjusting the thickness of a rubber substrate according to claim 1, characterized in that: Two worm gear screw jacks (30) on one side are fixed with a geared motor (31), which drives the worm of the worm gear screw jack (30) to rotate. A handwheel (32) is fixed to the outer end of the worm of the worm gear screw jack (30) on the other side.

6. An automatic device for adjusting the thickness of a rubber substrate according to claim 1, characterized in that: The two ends of the connecting rod (4) are connected to the worms of the two corresponding worm gear screw jacks (30) via couplings.

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