A filter cotton block forming device

Abstract

The present invention relates to a filter cotton block forming device, comprising a base, a first pressing unit, a first cutting and welding machine, a second pressing unit, a third pressing unit, a linear drive unit and a belt conveyor. The first pressing unit, the second pressing unit and the third pressing unit are arranged in sequence along the conveying direction of the filter cotton material belt. The first cutting and welding machine is arranged between the first pressing unit and the second pressing unit, and the filter cotton material belt is cut and welded in sequence to form a filter cotton block. The belt conveyor is used to convey the formed filter cotton block. In the actual operation process, the first pressing unit, the second pressing unit and the third pressing unit cooperate and coordinate with each other to realize the pulling and feeding operation and the pressing and flattening operation of the filter cotton material belt. In this way, on the one hand, the surface flatness of the filter cotton block after forming is ensured; on the other hand, the conveying speed of the filter cotton material belt is improved, thereby improving the production efficiency of the filter cotton block forming device.

Description

Technical Field

[0001] The invention relates to the technical field of non-standard equipment manufacturing, in particular to a filter cotton block forming device. Background Art

[0002] The gas filter box contains a certain type of activated carbon agent, which removes dust and toxic and harmful gases in the air through physical adsorption and chemical reaction principles for human breathing. It is usually used in conjunction with a gas mask. There is a smoke filter layer inside the gas filter box to filter out smoke particles. The filter elements include filter paper, glass fiber or filter cotton.

[0003] Take the filter cotton block as an example. It is directly punched out from the filter cotton material belt. In the process of directional traction of the filter cotton material belt, the filter fabric belt is cut by the cutting module of the cutting and welding machine to form the filter cotton block. At the same time, the periphery of the filter cotton block is hot-melt-seamed by the ultrasonic welding module of the cutting and welding machine. It is known that during the cutting and welding process, it is necessary to ensure that the filter cotton material belt remains in an absolutely static state during this period of time and has good flatness. However, in the prior art, a tension roller is usually used to directly pull the filter cotton material belt. As a result, on the one hand, the filter cotton belt is very likely to "slip" relative to the tension roller during the traction process, and the traction force that the tension roller can provide is extremely limited. Combining the above two factors, it is very likely that the filter cotton belt cannot be effectively flattened, which leads to a large number of wrinkles on the surface of the formed filter cotton block; on the other hand, the stopping and starting response speed of the tension roller is slow, and it takes a long time to ensure that the filter cotton belt is completely stopped, which seriously limits the improvement of the production efficiency of the filter cotton block forming equipment. Therefore, it is urgent for technicians to solve the above problems. Summary of the invention

[0004] Therefore, in view of the above-mentioned existing problems and defects, the designers of the present invention collected relevant information, conducted multiple evaluations and considerations, and continued to experiment and modify after many years of R&D experience in this industry, which ultimately led to the emergence of the filter cotton block forming equipment.

[0005] In order to solve the above technical problems, the present invention relates to a filter cotton block forming device, which includes a base, a first pressing unit, a first cutting and welding machine, a second pressing unit, a third pressing unit, a linear drive unit and a belt conveyor. The first pressing unit, the first cutting and welding machine, the second pressing unit and the third pressing unit are all supported by the base, and are arranged in sequence from left to right. The first pressing unit includes a first support frame, a first upper pressing unit, a first lower supporting unit and a first power element. The first upper pressing unit and the first lower supporting unit are both supported by the first support frame, and the first upper pressing unit is arranged directly above the first lower supporting unit. When the first power element is activated, the first upper pressing unit is driven to move toward / backward relative to the first lower supporting unit to achieve compression / relaxation of the filter cotton material belt. The first cutting and welding machine includes a first frame, a first cutting and welding upper die and a first cutting and welding lower die. The first cutting and welding upper die and the first cutting and welding lower die are both supported by the first frame, and the first cutting and welding upper die is arranged directly above the first cutting and welding lower die. The second pressing unit includes a second support frame, a second upper pressing unit, a second lower supporting unit and a second power element. The second upper pressing unit and the second lower supporting unit are both supported by the second support frame, and the second upper pressing unit is arranged directly above the second lower supporting unit. When the second power element is activated, the second upper pressing unit is driven to move toward / backward relative to the second lower supporting unit to achieve compression / relaxation of the filter cotton material belt. The third pressing unit includes a third support frame, a third upper pressing unit, a third lower supporting unit and a third power element. The third upper pressing unit and the third lower supporting unit are both supported by the third support frame, and the third upper pressing unit is arranged directly above the third lower supporting unit. When the third power element is activated, the third upper pressing unit is driven to move toward / away from the third lower supporting unit to achieve compression / relaxation of the filter cotton material strip. The first cutting and welding machine is arranged between the first pressing unit and the second pressing unit, and the filter cotton material strip is cut and welded in sequence to form a filter cotton block. The belt conveyor passes through the third pressing unit, the second pressing unit and the first cutting and welding machine in sequence from right to left. The belt conveyor is arranged in parallel directly above the base, and is also arranged directly below the third lower supporting unit, the second lower supporting unit and the first cutting and welding lower mold. The linear drive unit is also supported by the base to simultaneously drive the first pressing unit and the third pressing unit to synchronously move in the left and right directions.

[0006] As a further improvement of the technical solution of the present invention, the linear drive unit includes a fourth power element, a first slide rail slider assembly, a second slide rail slider assembly and a force transmission rod. The first slide rail slider assembly and the second slide rail slider assembly are respectively installed on the first pressing unit and the third pressing unit to force the first pressing unit and the third pressing unit to perform directional sliding motion along the left and right directions. The left and right ends of the force transmission rod are respectively hinged on the first lower supporting unit and the third lower supporting unit, and pass through the first cutting and welding lower mold and the second lower supporting unit in turn. The fourth power element is arranged directly below the third pressing unit, and is assisted by the joint action of the force transmission rod to simultaneously drag the first pressing unit and the third pressing unit to perform sliding motion synchronously.

[0007] As a further improvement of the technical solution of the present invention, the first power element, the second power element, the third power element and the fourth power element are preferably any one of a ball screw linear module, a cylinder, a hydraulic cylinder and a linear motor.

[0008] As a further improvement of the technical solution of the present invention, the second pressing unit further includes a first guide roller assembly and a second guide roller assembly. The first guide roller assembly and the second guide roller assembly are both detachably fixed to the front side wall of the second lower supporting unit, and are spaced apart from each other by a set distance along the front-to-back direction to form a passage for the filter cotton material belt to pass freely.

[0009] As a further improvement of the technical solution of the present invention, the first guide roller assembly includes a first L-shaped support plate, a first mounting shaft and a first roller. The first roller can be freely rotatably mounted on the first mounting shaft and is inserted and installed as a whole on the first L-shaped support plate. A first long waist-shaped hole is provided on the first L-shaped support plate for the first mounting shaft to pass through and extends along the front-to-back direction. The second guide roller assembly includes a second L-shaped support plate, a second mounting shaft and a second roller. The second roller can be freely rotatably mounted on the second mounting shaft and is inserted and installed as a whole on the second L-shaped support plate. A second long waist-shaped hole is provided on the second L-shaped support plate for the second mounting shaft to pass through and extends along the front-to-back direction.

[0010] As a further improvement of the technical solution of the present invention, the filter cotton block forming device also includes a second cutting and welding machine. The second cutting and welding machine is also supported by the base, and is arranged downstream of the first cutting and welding machine, and is also passed through by the belt conveyor. Along the front-to-back direction, the second cutting and welding machine is staggered by a set distance relative to the first cutting and welding machine.

[0011] As a further improvement of the technical solution of the present invention, the second cutting and welding machine includes a second frame, a second cutting and welding upper die and a second cutting and welding lower die. The second cutting and welding upper die and the second cutting and welding lower die are both supported by the second frame, and the second cutting and welding upper die is arranged directly above the second cutting and welding lower die.

[0012] As a further improvement of the technical solution of the present invention, the filter cotton block forming device also includes a material shifting unit. The material shifting unit is fixed to the belt conveyor and arranged between the first cutting and welding machine and the second cutting and welding machine to shift the formed filter cotton block to a position adjacent to the belt edge of the belt conveyor.

[0013] As a further improvement of the technical solution of the present invention, the material dispensing unit includes a bracket, a swing frame, a third roller, a first screw, a second screw and a third screw. The bracket is detachably fixed to the front side wall of the belt conveyor by the first screw. Correspondingly, a long waist-shaped hole is provided on the bracket for the first screw to pass through and extends in the up and down direction. The swing frame is flat, and is connected to the bracket by the second screw and the third screw, and can rotate freely in a plane. A first threaded hole and a second threaded hole for the second screw and the third screw to screw in extend downward from the upper plane of the swing frame. Correspondingly, a through hole for the second screw to pass through and aligned with the first threaded hole and an arc-shaped waist-shaped hole for the third screw to pass through and aligned with the second threaded hole are provided on the bracket. The third roller is hinged to the swing frame and can freely rotate circumferentially around its own central axis.

[0014] Compared with the filter cotton block forming equipment of the traditional design structure, in the technical solution disclosed in the present invention, the first pressing unit, the second pressing unit, and the third pressing unit are arranged in sequence along the left-to-right direction (i.e., the conveying direction of the filter cotton material belt). When the filter cotton material belt needs to be pulled along its length direction, the first pressing unit and the second pressing unit both act to release the pressing on the filter cotton material belt, and the third pressing unit acts to press the filter cotton material belt, and then the linear drive unit acts to simultaneously drive the first pressing unit and the third pressing unit to synchronously move along the left-to-right direction, that is, to achieve the pulling operation of the filter cotton material belt; when the filter cotton material belt is pulled into place, the first pressing unit and the second pressing unit both act instantaneously to achieve the simultaneous pressing on the filter cotton material belt, thereby making the filter cotton material belt between the first pressing unit and the second pressing unit in a tensioned state, preparing for the next cutting and welding work of the first cutting and welding machine. In this way, on the one hand, the phenomenon that the filter cotton belt cannot be effectively flattened is eliminated, thereby ensuring the flatness of the surface of the filter cotton block after it is formed; on the other hand, the conveying speed of the filter cotton belt is greatly improved, and the stop and start response speed is extremely fast, thereby improving the production efficiency of the filter cotton block forming equipment to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional schematic diagram of the filter cotton block forming device in the present invention.

[0017] Figure 2 yes Figure 1 Front view of .

[0018] Figure 3 yes Figure 1 A partial enlarged view of I.

[0019] Figure 4 yes Figure 1 Top view of the .

[0020] Figure 5 yes Figure 4 AA section view.

[0021] Figure 6 It is a three-dimensional schematic diagram of a first pressing unit in the filter cotton block forming device of the present invention from one viewing angle.

[0022] Figure 7 It is a three-dimensional schematic diagram of another viewing angle of the first pressing unit in the filter cotton block forming device of the present invention.

[0023] Figure 8 It is a three-dimensional schematic diagram of the first cutting and welding machine in the filter cotton block forming equipment of the present invention.

[0024] Fig. 9 It is a three-dimensional schematic diagram of the second material pressing unit in the filter cotton block forming equipment of the present invention.

[0025] Fig.10 yes Fig. 9 A partial enlarged view of II.

[0026] Fig.11 yes Fig. 9 A partial enlarged view of III.

[0027] Fig.12 It is a three-dimensional schematic diagram of the third material pressing unit in the filter cotton block forming equipment of the present invention.

[0028] Fig.13 It is a three-dimensional schematic diagram of the second cutting and welding machine in the filter cotton block forming equipment of the present invention.

[0029] Fig.14 It is a three-dimensional schematic diagram of a material-selecting unit in the filter cotton block forming device of the present invention from one viewing angle.

[0030] Fig.15 It is a three-dimensional schematic diagram of another viewing angle of the material shifting unit in the filter cotton block forming device of the present invention.

[0031] Fig.16 It is the final form of the filter cotton material belt after holes are dug when the filter cotton block forming equipment of the present invention is only equipped with the first cutting and welding machine.

[0032] Fig.17 It is the final form of the filter cotton material belt after holes are dug when the filter cotton block forming equipment of the present invention is simultaneously equipped with the first cutting and welding machine and the second cutting and welding machine.

[0033] 1-base; 2-first pressing unit; 21-first support frame; 22-first upper pressing unit; 23-first lower supporting unit; 24-first power element; 3-first cutting and welding machine; 31-first frame; 32-first cutting and welding upper die; 33-first cutting and welding lower die; 4-second pressing unit; 41-second support frame; 42-second upper pressing unit; 43-second lower supporting unit; 44-second power element; 45-first guide roller assembly; 451-first L-shaped support plate; 452-first mounting shaft; 453-first roller; 46-second guide roller assembly; 461-second L-shaped support plate; 462-second mounting shaft; 463-second roller; 5-third pressing unit; 51-third supporting frame; 52-third upper pressing unit; 53-third lower supporting unit; 54-third power element; 6-linear driving unit; 61-fourth power element; 62-first slide rail slider assembly; 63-second slide rail slider assembly; 64-force transmission rod; 7-belt conveyor; 8-second cutting and welding machine; 81-second frame; 82-second cutting and welding upper die; 83-second cutting and welding lower die; 9-feeding unit; 91-bracket; 911-long waist-shaped hole; 912-arc waist-shaped hole; 92-swinging frame; 93-third roller. DETAILED DESCRIPTION

[0034] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "left", "right", "up", "down", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0035] In order to facilitate those skilled in the art to fully understand the technical solutions disclosed in the present invention, the present invention is further described in detail below in conjunction with specific embodiments. Figure 1 , Figure 2The three-dimensional schematic diagram and the front view of the filter cotton block forming device of the present invention are respectively shown. It can be seen that it is mainly composed of a base 1, a first pressing unit 2, a first cutting and welding machine 3, a second pressing unit 4, a third pressing unit 5, a linear drive unit 6 and a belt conveyor 7. Among them, the first pressing unit 2, the first cutting and welding machine 3, the second pressing unit 4 and the third pressing unit 5 are all supported by the base 1, and they are arranged in sequence from left to right. The first pressing unit 2 includes a first support frame 21, a first upper pressing unit 22, a first lower supporting unit 23 and a first power element 24. The first upper pressing unit 22 and the first lower supporting unit 23 are both supported by the first support frame 21, and the first upper pressing unit 22 is arranged directly above the first lower supporting unit 23. When the first power element 24 is activated, the first upper material pressing unit 22 is driven to move toward / away from the first lower supporting unit 23 to achieve compression / relaxation of the filter cotton belt (e.g. Figure 6 , 7 The first cutting and welding machine 3 includes a first frame 31, a first cutting and welding upper die 32 and a first cutting and welding lower die 33. The first cutting and welding upper die 32 and the first cutting and welding lower die 33 are both supported by the first frame 31, and the first cutting and welding upper die 32 is arranged directly above the first cutting and welding lower die 33 (as shown in FIG. Figure 8 As shown in ). The second pressing unit 4 includes a second support frame 41, a second upper pressing unit 42, a second lower supporting unit 43 and a second power element 44. The second upper pressing unit 42 and the second lower supporting unit 43 are both supported by the second support frame 41, and the second upper pressing unit 42 is arranged directly above the second lower supporting unit 43. When the second power element 44 is activated, the second upper pressing unit 42 is driven to move toward / away from the second lower supporting unit 43 to achieve compression / relaxation of the filter cotton belt (as shown in ). Fig. 9 As shown in ). The third pressing unit 5 includes a third support frame 51, a third upper pressing unit 52, a third lower supporting unit 53 and a third power element 54. The third upper pressing unit 52 and the third lower supporting unit 53 are both supported by the third support frame 51, and the third upper pressing unit 52 is arranged directly above the third lower supporting unit 53. When the third power element 54 is activated, the third upper pressing unit 52 is driven to move toward / backward relative to the third lower supporting unit 53 to achieve compression / relaxation of the filter cotton belt (as shown in ). Fig.10). The first cutting and welding machine 3 is arranged between the first pressing unit 2 and the second pressing unit 4, and sequentially cuts and welds the filter cotton material belt to form a filter cotton block. The belt conveyor 7 sequentially passes through the third pressing unit 5, the second pressing unit 4 and the first cutting and welding machine 3 from right to left. The belt conveyor 7 is arranged in parallel just above the base 1, and is also arranged just below the third lower supporting unit 53, the second lower supporting unit 43 and the first cutting and welding lower mold 33. The linear drive unit 6 is also supported by the base 1 to simultaneously drive the first pressing unit 2 and the third pressing unit 5 to synchronously move in the left and right directions.

[0036] The operating principle of the above-mentioned filter cotton block forming equipment is roughly as follows: when the filter cotton material belt needs to be pulled along its length direction, the first pressing unit 2 and the second pressing unit 4 both act to loosen the pressure on the filter cotton material belt, and the third pressing unit 5 acts to tighten the filter cotton material belt, and then the linear drive unit 6 acts to simultaneously drive the first pressing unit 2 and the third pressing unit 5 to synchronously move from left to right, that is, to realize the pulling operation of the filter cotton material belt; when the filter cotton material belt is pulled into place, the first pressing unit 2 and the second pressing unit 4 both act instantaneously to realize the simultaneous pressure on the filter cotton material belt, thereby making the filter cotton material belt located between the first pressing unit 2 and the second pressing unit 4 in a tensioned state, preparing for the next cutting and welding work of the first cutting and welding machine 3.

[0037] By adopting the above technical solution, the filter cotton block forming equipment has achieved at least the following beneficial technical effects:

[0038] 1) It effectively prevents the filter cotton belt from being effectively flattened, thereby ensuring the flatness of the surface of the filter cotton block after forming;

[0039] 2) The conveying speed of the filter cotton material belt is greatly improved, and the stop and start response speed is extremely fast, which improves the production efficiency of the filter cotton block forming equipment to a certain extent.

[0040] It is known that the linear drive unit 6 can adopt a variety of design structures to achieve the driving of the first pressing unit 2 and the third pressing unit 5. For example, the first pressing unit 2 and the third pressing unit 5 are respectively and independently configured with a first drive motor and a second drive motor in a one-to-one correspondence. However, it is difficult to ensure the simultaneity of the start-up of the first drive motor and the second drive motor and the consistency of the running speed, which can easily lead to the occurrence of "over-pulling" or "drooping" of the filter cotton belt. In order to solve this technical problem, a preferred implementation scheme is provided herein, which is as follows: the linear drive unit 6 includes a fourth power element 61, a first slide rail slider assembly 62, a second slide rail slider assembly 63 and a force transmission rod 64. The first slide rail slider assembly 62 and the second slide rail slider assembly 63 are respectively installed on the first pressing unit 2 and the third pressing unit 5 to force the first pressing unit 2 and the third pressing unit 5 to perform directional sliding movement along the left and right directions. The left and right ends of the force transmission rod 64 are respectively hinged to the first lower supporting unit 23 and the third lower supporting unit 53, and pass through the first cutting and welding lower mold 33 and the second lower supporting unit 43 in sequence. The fourth power element 61 is arranged directly below the third pressing unit 5, and with the help of the force transmission rod 64, it can simultaneously drag the first pressing unit 2 and the third pressing unit 5 to perform sliding motion synchronously. That is, the fourth power element 61 and the force transmission rod 64 cooperate with each other, and with the help of the power provided by the fourth power element 61, the first pressing unit 2 and the third pressing unit 5 (such as Figure 4 , 5 As shown in ). In this way, on the one hand, the design structure of the linear drive unit 6 is effectively simplified, that is, only one fourth power element 61 is selected, thereby effectively reducing the space occupied by the linear drive unit 6 as a whole, which is conducive to overall space design and optimization; on the other hand, the way in which the force transmission rod 64 is dragged simultaneously completely solves the synchronization of the start-up of the first pressing unit 2 and the third pressing unit 5 and the consistency of the displacement speed of the first pressing unit 2 and the third pressing unit 5, which is conducive to keeping the filter cotton material belt in a critical tension state during the dragging process, thereby ensuring that the filter cotton material belt has a good surface tension shape before being cut and welded, and finally ensuring the final molding quality of the filter cotton block.

[0041] Generally speaking, the first power element 24, the second power element 44, the third power element 54 and the fourth power element 61 can be preferably any one of a ball screw linear module, a cylinder, a hydraulic cylinder and a linear motor according to specific circumstances and actual application scenarios.

[0042] As a further optimization of the structure of the filter cotton block forming device, the second pressing unit 4 is additionally provided with a first guide roller assembly 45 and a second guide roller assembly 46 according to actual conditions. The first guide roller assembly 46 and the second guide roller assembly 46 can be detachably fixed to the front side wall of the second lower supporting unit 43, and are spaced apart from each other by a set distance along the front-to-back direction to form a through channel (such as a through channel) for the filter cotton material belt to pass freely. Fig. 9 As shown in ). In this way, the existence of the passing channel can effectively improve the guiding property of the filter cotton belt when passing through the second pressing unit 4. On the one hand, it effectively prevents the filter cotton belt from being "biased" relative to the second pressing unit 4 during the pulling process; on the other hand, it reduces the probability of the filter cotton belt being folded laterally during the pulling process to a certain extent.

[0043] like Fig.10 As shown in , the first guide roller assembly 45 preferably includes a first L-shaped support plate 451, a first mounting shaft 452 and a first roller 453. The first roller 453 is freely rotatably sleeved on the first mounting shaft 452 and is integrally inserted and installed on the first L-shaped support plate 451. The first L-shaped support plate 451 is provided with a first long waist-shaped hole for the first mounting shaft 452 to pass through and extending in the front-to-back direction. Fig.11 As shown in the figure, the second guide roller assembly 46 includes a second L-shaped support plate 461, a second mounting shaft 462 and a second roller 463. The second roller 463 can be freely rotatably sleeved on the second mounting shaft 462, and is integrally inserted and installed on the second L-shaped support plate 461. A second long waist-shaped hole for the second mounting shaft 462 to pass through and extending along the front-back direction is provided on the second L-shaped support plate 461. By adopting the above technical solution, on the one hand, in the process of pulling the filter cotton material belt, the first roller 453 or / the second roller 463 can freely rotate around its central axis in the circumferential direction, thereby ensuring the smoothness of the filter cotton material belt passing through the passage; on the other hand, when the width of the next batch of filter cotton material belts changes and the width value of the passage needs to be adjusted, it is only necessary to drag the first mounting shaft 452 and the second mounting shaft 462 along the first long waist-shaped hole and the second long waist-shaped hole respectively, and the whole operation process is convenient and fast.

[0044] When the filter cotton block forming equipment is equipped with only one set of cutting and welding machines, namely the first cutting and welding machine 3 mentioned above, the final shape of the filter cotton material belt after being dug is as follows: Fig.16 As described above, it can be seen that the formed holes are arranged in a linear manner, resulting in a low overall utilization rate of the filter cotton strip, thereby increasing the manufacturing cost of a single filter cotton block. Figure 1 , 2As shown in FIG. 1 , the filter cotton block forming device is additionally provided with a second cutting and welding machine 8. The second cutting and welding machine 8 is also supported by the base 1 and arranged downstream of the first cutting and welding machine 3 and is also passed through by the belt conveyor 7. In the front-to-back direction, the second cutting and welding machine 8 is staggered by a set distance relative to the first cutting and welding machine 3. In the actual working process of the filter cotton block forming device, the final shape of the filter cotton material belt after the holes are dug is as follows: Fig.17 As shown in , it can be seen that the formed holes are distributed in two rows, which are staggered and interspersed with each other, thereby greatly improving the overall utilization rate of the filter cotton material belt and reducing the manufacturing cost of a single filter cotton block.

[0045] Depend on Fig.13 It can be seen that the second cutting and welding machine 8 includes a second frame 81, a second cutting and welding upper die 82 and a second cutting and welding lower die 83. The second cutting and welding upper die 82 and the second cutting and welding lower die 83 are both supported by the second frame 81, and the second cutting and welding upper die 82 is arranged directly above the second cutting and welding lower die 83.

[0046] The first cutting and welding machine 3 and the second cutting and welding machine 8 may also be preferably purchased equipment, such as the USP 8000 3M 20KHz welding machine provided by Taisuo Ke Ultrasonic Equipment (Shanghai) Co., Ltd.

[0047] Finally, it should be noted that when the filter cotton block forming equipment is equipped with the first cutting and welding machine 3 and the second cutting and welding machine 8, the formed filter cotton blocks are very likely to be stacked on the belt of the belt conveyor, thereby affecting the normal implementation of the next laser marking process. The reason is that the filter cotton blocks themselves are relatively light in weight, and under the influence of some special factors, for example: the discharge port of the first cutting and welding machine 3 and the second cutting and welding machine 8 does not drop the material smoothly or the edge of the filter cotton block contains a lot of burrs, it is very likely that the material will be delayed, which will lead to the occurrence of "stacked" material. In view of this, if Figure 1 , 3 As shown in , the filter cotton block forming device is additionally provided with a material shifting unit 9 according to actual conditions. The material shifting unit 9 is directly fixed to the belt conveyor 7 and arranged between the first cutting and welding machine 3 and the second cutting and welding machine 8 to shift the formed filter cotton block to the edge of the belt adjacent to the belt conveyor 7. In the actual operation process of the filter cotton block forming device, the material shifting unit 9 always shifts the filter cotton block formed by the first cutting and welding machine 3 to the edge of the belt conveyor, providing sufficient material dropping space for the filter cotton block formed by the second cutting and welding machine 8, thereby eliminating the occurrence of the "stacked material" phenomenon from the source.

[0048] like Fig.14 , 15As shown in , the material-dispensing unit 9 is preferably composed of a bracket 91, a swing frame 92, a third roller 93, a first screw, a second screw and a third screw. Among them, the bracket 91 is detachably fixed to the front side wall of the belt conveyor 7 by the first screw. Correspondingly, a long waist-shaped hole 911 is provided on the bracket 91 for the first screw to pass through and extends in the up-down direction. The swing frame 92 is flat, and is connected to the bracket 91 by the second screw and the third screw, and can be freely rotated in a plane. The first threaded hole and the second threaded hole for the second screw and the third screw to be screwed together extend downward from the upper plane of the swing frame 92. Correspondingly, a through hole for the second screw to pass through and aligned with the first threaded hole and an arc-shaped waist-shaped hole 912 for the third screw to pass through and aligned with the second threaded hole are provided on the bracket 91. The third roller 93 is hinged to the swing frame 92 and can freely rotate circumferentially around its own central axis. By adopting the above-mentioned technical solution, on the one hand, when it is necessary to adjust the overall relative height position of the material dispensing unit 9 to indirectly adjust the gap value between the third roller 93 and the belt conveyor 7, the first screw is loosened, and the bracket 91 is lifted along the height direction until its relative height position meets the application requirements, and the first screw is immediately re-locked; on the other hand, when it is necessary to adjust the swing angle of the third roller 93 and then indirectly adjust the final fiddle stop position of the filter cotton block, it is only necessary to loosen the third screw, rotate the third roller 93 until its swing angle meets the application requirements, and finally lock the third screw, and the overall adjustment process is convenient and fast.

[0049] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A filter cotton block forming device, characterized in that: It includes a base, a first pressing unit, a first cutting and welding machine, a second pressing unit, a third pressing unit, a linear drive unit and a belt conveyor; the first pressing unit, the first cutting and welding machine, the second pressing unit and the third pressing unit are all supported by the base, and are arranged in sequence from left to right; the first pressing unit includes a first support frame, a first upper pressing unit, a first lower supporting unit and a first power element; the first upper pressing unit and the first lower supporting unit are all supported by the first support frame, and the first upper pressing unit is arranged directly above the first lower supporting unit; when the first power element is actuated, the first upper pressing unit is driven to move toward / away from the first lower supporting unit to achieve compression / relaxation of the filter cotton material belt; the first cutting and welding machine includes a first frame, a first cutting and welding upper mold and a first cutting and welding lower mold; the first cutting and welding upper mold, The first cutting and welding lower mold is supported by the first frame, and the first cutting and welding upper mold is arranged directly above the first cutting and welding lower mold; the second pressing unit includes a second support frame, a second upper pressing unit, a second lower supporting unit and a second power element; the second upper pressing unit and the second lower supporting unit are supported by the second support frame, and the second upper pressing unit is arranged directly above the second lower supporting unit; when the second power element is actuated, the second upper pressing unit is driven to move toward / backward relative to the second lower supporting unit to achieve compression / relaxation of the filter cotton material belt; the third pressing unit includes a third support frame, a third upper pressing unit, a third lower supporting unit and a third power element; the third upper pressing unit and the third lower supporting unit are supported by the third support frame, and the third upper pressing unit is arranged directly above the third lower supporting unit; When the third power element is in action, the third upper pressing unit is driven to move toward / away from the third lower supporting unit to achieve compression / relaxation of the filter cotton material belt; the first cutting and welding machine is arranged between the first pressing unit and the second pressing unit, and the filter cotton material belt is cut and welded in sequence to form a filter cotton block; the belt conveyor passes through the third pressing unit, the second pressing unit and the first cutting and welding machine in sequence from right to left; the belt conveyor is arranged in parallel directly above the base, and is also arranged directly below the third lower supporting unit, the second lower supporting unit and the first cutting and welding lower mold; the linear drive unit is also supported by the base, so as to simultaneously drive the first pressing unit and the third pressing unit to synchronously perform displacement movements along the left and right directions; The filter cotton block forming device further comprises a second cutting and welding machine; the second cutting and welding machine is also supported by the base, is also passed through by the belt conveyor, and is arranged downstream of the first cutting and welding machine; along the front-to-back direction, the second cutting and welding machine is staggered by a set distance relative to the first cutting and welding machine; The second cutting and welding machine includes a second frame, a second cutting and welding upper die and a second cutting and welding lower die; the second cutting and welding upper die and the second cutting and welding lower die are both supported by the second frame, and the second cutting and welding upper die is arranged directly above the second cutting and welding lower die; The filter cotton block forming device further comprises a material shifting unit; the material shifting unit is fixed to the belt conveyor and arranged between the first cutting and welding machine and the second cutting and welding machine to shift the filter cotton block formed by the first cutting and welding machine to a position adjacent to the belt edge of the belt conveyor; The material-dividing unit comprises a bracket, a swing frame, a third roller, a first screw, a second screw and a third screw; the bracket is detachably fixed to the front side wall of the belt conveyor by the first screw, and correspondingly, a long waist-shaped hole for the first screw to pass through and extending in the up and down directions is opened on the bracket; the swing frame is flat, and is connected to the bracket by the second screw and the third screw, and can be freely rotated in a plane; a first threaded hole and a second threaded hole for the second screw and the third screw to be screwed together extend downward from the upper plane of the swing frame, and correspondingly, a through hole for the second screw to pass through and which is aligned with the first threaded hole and an arc-shaped waist-shaped hole for the third screw to pass through and which is aligned with the second threaded hole are opened on the bracket; the third roller is hinged to the swing frame and can freely rotate around its own central axis; The first power element, the second power element and the third power element are any one of a ball screw linear module, a cylinder, a hydraulic cylinder and a linear motor; The second pressing unit also includes a first guide roller assembly and a second guide roller assembly.

2. The filter cotton block forming device according to claim 1, characterized in that: The linear drive unit includes a fourth power element, a first slide rail slider assembly, a second slide rail slider assembly and a force transmission rod; the first slide rail slider assembly and the second slide rail slider assembly are respectively installed on the first pressing unit and the third pressing unit to force the first pressing unit and the third pressing unit to perform directional sliding movement along the left and right directions; the left and right ends of the force transmission rod are respectively hinged on the first lower supporting unit and the third lower supporting unit, and pass through the first cutting and welding lower mold and the second lower supporting unit in turn; the fourth power element is arranged directly below the third pressing unit, and is assisted by the joint action of the force transmission rod to simultaneously drag the first pressing unit and the third pressing unit to perform sliding movement synchronously.

3. The filter cotton block forming device according to claim 2, characterized in that: The fourth power element is any one of a ball screw linear module, a cylinder, a hydraulic cylinder and a linear motor.

4. The filter cotton block forming device according to claim 1, characterized in that The first guide roller assembly and the second guide roller assembly can be detachably fixed on the front side wall of the second lower supporting unit, and are spaced apart from each other by a set distance along the front-to-back direction to form a passage for the filter cotton material belt to pass freely.

5. The filter cotton block forming device according to claim 4, characterized in that: The first guide roller assembly includes a first L-shaped support plate, a first mounting shaft and a first roller; the first roller is freely rotatable on the first mounting shaft and is integrally inserted and installed on the first L-shaped support plate; a first long waist-shaped hole is provided on the first L-shaped support plate for the first mounting shaft to pass through and extends along the front-to-back direction; the second guide roller assembly includes a second L-shaped support plate, a second mounting shaft and a second roller; the second roller is freely rotatable on the second mounting shaft and is integrally inserted and installed on the second L-shaped support plate; a second long waist-shaped hole is provided on the second L-shaped support plate for the second mounting shaft to pass through and extends along the front-to-back direction.

Images