Inner cylinder processing equipment for industrial washing machines

Abstract

We provide inner tube processing equipment for industrial washing machines. [Solution] The device comprises a support seat, a pressure plate mechanism, a push plate mechanism and a welding mechanism. The pressure plate mechanism comprises a pressure plate assembly and a load column. A first alignment block is slidably connected within the load column. A rotating shaft is rotatably mounted on the load column. A photoelectric sensor capable of detecting the weld seam of the inner tube is mounted on the side plate. The pressure plate assembly comprises a first pressure plate, a second pressure plate and a first linear actuator. The push plate mechanism comprises a first push plate, and a second push plate and a third push plate provided on both sides of the first push plate. The bottom end of the inner tube contacts the bottom plate, ensuring that both ends of the inner tube are flush without the need for manual alignment.

Description

[Technical Field]

[0001] The present invention relates to the technical field of inner tube welding, and more particularly to inner tube processing equipment for industrial washing machines. [Background technology]

[0002] The inner tubes of industrial washing machines are typically made of thin stainless steel. After press forming, a flat steel plate is rolled into the initial shape of the inner tube using a roll forming machine, and then laser welded into a cylindrical shape. The inner tube then undergoes flanging, beading, and hemming to improve structural strength, durability, and safety during use. Because thin stainless steel is thin, it becomes elastic after being bent by roll forming. Welding typically requires two workers to butt the weld surfaces and apply pressure to the weld area, making the process cumbersome. Furthermore, the small gap between the support surface of the thin stainless steel and the pressure mechanism makes it difficult to accurately center the weld area when positioned manually, resulting in poor welding quality.

[0003] For example, patent application publication number CN117862720A discloses a welding machine and a method for processing cylindrical rings. The welding machine includes a main body and a first seam alignment and positioning assembly. The main body is provided with a work table and a positioning block. The work table is provided with a welding groove. First and second pressure plates are provided on both sides of the welding groove. The first seam alignment and positioning assembly includes a first seam alignment and positioning component. The inner cylinder is placed on the positioning block and located below the work table. The seam of the inner cylinder extends approximately along the centerline of the welding groove. After the first seam alignment and positioning component is moved to a first working position, the inner cylinder material ends on both sides of the seam are moved until they abut against the respective sides of the first seam alignment and positioning component. Next, a second pressure plate is moved downward. After the second pressure plate presses the material end on the same side, the first seam alignment and positioning component is moved to a first waiting position. Then, the end face of the other material end is moved until it abuts against the material end on the same side as the second pressure plate. In this way, the two material ends complete the mating operation while touching each other but without overlapping.

[0004] While the above technical solution can abut the two material ends of the inner cylinder to reduce overlap between the material ends, the lack of a positioning mechanism on both ends of the inner cylinder requires manual alignment when installing the inner cylinder on the positioning block. This manual installation of the inner cylinder results in the center line of the weld seam being offset by different distances from the center line of the weld groove. As a result, different adjustments are required on both sides of the inner cylinder when aligning the weld seam. Therefore, after completing welding of one inner cylinder, the adjustments on both sides must be reset for the next inner cylinder, reducing welding efficiency. Therefore, there is a need to develop inner cylinder processing equipment for industrial washing machines to solve the technical problems of manually aligning the two material ends when installing the inner cylinder and of the center line of the weld seam being offset by different distances from the center line of the weld groove. Summary of the Invention [Problem to be solved by the invention]

[0005] In view of this, the present invention provides a need to develop an inner tube processing equipment for industrial washing machines to solve the technical problem that when installing the inner tube, both ends of two materials need to be manually aligned and the center line of the welded seam is deviated from the center line of the welded groove by different distances. [Means for solving the problem]

[0006] In order to solve the above technical problems, the present invention provides an inner tube processing equipment for an industrial washing machine, comprising: a support seat having a bottom plate and a side plate; a pressure plate mechanism provided on the support seat; a push plate mechanism; and a welding mechanism; wherein the pressure plate mechanism comprises a pressure plate assembly and a load column provided on one side of the pressure plate assembly, the axis of the load column is arranged perpendicular to the bottom plate, a slot is opened along the axial direction on the side of the load column close to the pressure plate assembly, and a first alignment block is slidably connected in the slot; an arc-shaped groove is opened along the axial direction on one end of the load column remote from the slot, and a rotating shaft for rotating the material end of the inner tube is rotatably mounted in the arc-shaped groove; a motor for driving the rotating shaft is mounted above the load column; and a photoelectric sensor for detecting the weld seam of the inner tube is mounted on the side plate; the pressure plate assembly includes a first pressure plate and a second pressure plate slidably mounted on the bottom plate, and a first linear actuator that drives the first pressure plate and the second pressure plate in a horizontal direction, and the first linear actuator is capable of returning the first alignment block by driving and moving the second pressure plate; The push plate mechanism includes a first push plate provided at one end of the bottom plate remote from the load column, and a second push plate and a third push plate provided on either side of the first push plate. The first push plate is driven by a second linear actuator attached to the side plate, and the second push plate and the third push plate are driven by a drive assembly attached to the bottom plate. A pressure block is elastically connected to one end of the bottom plate remote from the load column, and a connecting rod is fixedly connected between the pressure block and the first alignment block. The second linear actuator drives and moves the first push plate, thereby unlocking the pressure block, and the pressure block and connecting rod move the first alignment block.

[0007] According to the above technical solution, the inner cylinder to be welded is placed on the bottom plate. The inner cylinder is located between the first push plate and the rotating shaft, and the bottom end of the inner cylinder is in contact with the bottom plate, eliminating the need for manual alignment and ensuring that both ends of the inner cylinder are flush. Because the inner cylinder is located between the rotating shaft and the first push plate, the installation space for the inner cylinder is narrower than when it is located between the pressure plate assembly and the first push plate. The periphery of the inner cylinder abuts against the rotating shaft, the first push plate, the second push plate, and the third push plate, respectively. The photoelectric sensor detects the position of the weld seam. If it detects that the center line of the weld seam deviates from the center of the arc-shaped groove, the motor drives the rotating shaft to rotate, which rotates the material end of the inner cylinder until the weld seam reaches the center of the arc-shaped groove, thereby achieving pre-alignment of the weld seam. Then, the portion of the inner cylinder facing the weld seam is fixed, and the two material ends of the inner cylinder are respectively positioned between the first pressure plate and the load column, and between the second pressure plate and the load column. The second linear actuator is activated, and the second linear actuator drives the first push plate to move to one end closer to the inner cylinder. At the same time, the first push plate and the pressure block are separated, and the pressure block is unlocked. The pressure block drives the connecting rod and the first alignment block based on elastic force, and moves the first alignment block in a direction away from the inner cylinder. Furthermore, the drive assembly moves the third push plate in a direction closer to the inner cylinder. By moving the second push plate, the end of the material at one end closest to the second presser plate is brought into contact with the edge of the first alignment block, and the first linear actuator is activated, causing the second presser plate to press against the end of the material at that end. At the same time, the second presser plate returns the first alignment block, and the drive assembly moves the second push plate in a direction closer to the inner cylinder, causing the end of the material at one end closest to the first presser plate to abut against the end of the material at the other end. The first linear actuator drives the first presser plate to press against the end of the material at that end, thereby achieving alignment of the weld seam, and then the welding mechanism performs welding on the weld seam.In the present invention, the bottom end of the inner tube comes into contact with the bottom plate, ensuring that both ends of the inner tube are flush without the need for manual alignment. Furthermore, when aligning the weld seam, the weld seam is first pre-aligned, reducing the distance by which the center line of the weld seam deviates from the center line of the weld groove. This makes it possible to adjust the second and third push plates, located on both sides of the inner tube, to be equidistant. When welding the next inner tube of the same size, there is no need to readjust the travel distance of the second and third push plates, improving welding efficiency.

[0008] Preferably, the first and second pressure plates are located on both sides of the slot, and the opposing sides of the first and second pressure plates are each provided with an inclined surface, and a welding groove is left between the first and second pressure plates, and gaps are left between the first and second pressure plates and the load column, respectively, through which the two material ends of the inner tube can pass.

[0009] According to the above technical solution, before aligning the weld seam, the two material ends of the inner tube are first positioned in the gap to temporarily position the inner tube, and the first and second pressure plates each have an inclined surface, and a welding groove is left between them, so that after aligning the weld seam, the welding mechanism can smoothly perform welding on the weld seam.

[0010] Preferably, a second alignment block abutting the first alignment block is fixedly installed within the slot, the first pressure plate is adjacent to the first alignment block, and the second pressure plate is adjacent to the second alignment block.

[0011] According to the above technical solution, the welding seam is located between the first alignment block and the second alignment block, and the first alignment block is flush with the end face of the second alignment block after returning, which facilitates the welding operation.

[0012] Preferably, a first hydraulic chamber is provided at the bottom of the slot, a first seal block and a second seal block are elastically connected to both sides of the first hydraulic chamber, the second seal block is fixedly connected to a second pressing plate, the first seal block is located at one end of the first alignment block, and the first alignment block can be returned.

[0013] According to the above technical solution, when the end of the material at one end close to the second pressure plate becomes flush with the first alignment block, the first linear actuator drives the second pressure plate to press the end of the material, and at the same time, the second pressure plate moves the second seal block closer to the first hydraulic chamber, resulting in an increase in hydraulic pressure in the first hydraulic chamber, which further moves the second seal block away from the first hydraulic chamber and further moves the first alignment block closer to the inner cylinder, thereby returning the first alignment block and allowing the first pressure plate to reliably press the end of the material at the end close to the first pressure plate, thereby achieving alignment of the weld seam.

[0014] Preferably, the second push plate is provided on a side closer to the first presser plate, and the drive assembly includes a third linear actuator that drives the movement of the second push plate.

[0015] According to the above technical solution, after the second pressure plate presses the material end portion close to the second pressure plate, the first alignment block is returned, and the third linear actuator moves the second push plate in the direction close to the inner cylinder, thereby abutting the material end portion close to the first pressure plate with the material end portion close to the second pressure plate, thereby realizing the alignment of the weld seam.

[0016] Preferably, the third push plate is provided on the side closer to the second pressure plate, and the drive assembly further includes second and third hydraulic chambers provided in the side plates and hydraulic piping connected between the second and third hydraulic chambers, a dummy plug is elastically connected to an end of the second hydraulic chamber, a trigger part that triggers the operation of the dummy plug is fixedly connected to one side of the first push plate, a third seal block is elastically connected within the third hydraulic chamber, and the third seal block is fixedly connected to the third push plate.

[0017] According to the above technical solution, the first push plate moves to the end closer to the inner cylinder, and when the trigger part contacts the dummy plug, it pushes the dummy plug closer to the second hydraulic chamber, resulting in an increase in the oil pressure in the second hydraulic chamber, and hydraulic oil flows from the second hydraulic chamber to the third hydraulic chamber through the hydraulic piping, resulting in an increase in the oil pressure in the third hydraulic chamber, which pushes the third seal block away from the third hydraulic chamber, thereby moving the third push plate closer to the inner cylinder.

[0018] Preferably, the first push plate has two inclined surfaces and one flat surface, and the two inclined surfaces are arranged on both sides of the one flat surface, so that the two inclined surfaces and the one flat surface are all in contact with the inner cylinder.

[0019] According to the above technical solution, the two inclined surfaces and one flat surface are all in contact with the inner cylinder, which increases the contact area between the first push plate and the inner cylinder, making it possible to move the inner cylinder while maintaining its circular shape.

[0020] Preferably, the heights of the first push plate, the second push plate and the third push plate are all greater than half the height of the inner cylinder.

[0021] The above technical solution is advantageous in that the side surface of the inner cylinder can be kept vertical after the inner cylinder is placed on the bottom plate.

[0022] The beneficial effects of the above technical solutions of the present invention are as follows:

[0023] 1. In the present invention, the bottom end of the inner cylinder contacts the bottom plate, ensuring that both ends of the inner cylinder are flush without the need for manual alignment. Furthermore, when aligning the weld seam, the weld seam is first pre-aligned, reducing the distance by which the center line of the weld seam deviates from the center line of the weld groove. This makes it possible to adjust the second and third push plates, located on both sides of the inner cylinder, to be equidistant. This eliminates the need to readjust the travel distance of the second and third push plates when welding the next inner cylinder of the same size, thereby improving welding efficiency.

[0024] 2. In the present invention, the second pressure plate presses the end of the material while the first alignment block is returned to its original position, so that the ends of the first alignment block and the second alignment block are flush with each other, facilitating the welding operation.

[0025] 3. In the present invention, the heights of the first push plate, the second push plate and the third push plate are all greater than half the height of the inner cylinder, which is advantageous for keeping the side of the inner cylinder vertical after the inner cylinder is placed on the base plate. [Brief explanation of the drawings]

[0026] [Figure 1] 1 is a schematic diagram showing a structure of a pre-aligned state of a weld seam in the inner cylinder processing equipment of the industrial washing machine according to the present invention; FIG. [Figure 2] 4 is a cross-sectional view showing the process of aligning the welding seam of the inner cylinder processing equipment for the industrial washing machine according to the present invention. FIG. [Figure 3] FIG. 3 is an enlarged view of A in FIG. 2. [Figure 4] FIG. 2 is a cross-sectional view showing a pressing block and a connecting rod according to the present invention. [Figure 5] FIG. 5 is an enlarged view of B in FIG. [Figure 6] FIG. 5 is an enlarged view of C in FIG. [Figure 7] FIG. 3 is a cross-sectional view showing a first hydraulic chamber according to the present invention. [Figure 8] FIG. 2 is a partial cross-sectional view of a push plate mechanism according to the present invention. [Figure 9] FIG. 9 is an enlarged view of D in FIG. 8. [Figure 10] FIG. 9 is an enlarged view of E in FIG. 8. DETAILED DESCRIPTION OF THE INVENTION

[0027] In order to clarify the objectives, technical solutions and advantages of the embodiments of the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with Figures 1 to 10 of the embodiments of the present invention. It is clear that the described embodiments are only a part of the embodiments of the present invention, and are not all of them. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention shall fall within the protection scope of the present invention.

[0028] Example This embodiment provides an inner cylinder processing equipment for an industrial washing machine, which includes a support seat 1, a pressure plate mechanism 2, a push plate mechanism 3 and a welding mechanism 5, as shown in FIG.

[0029] As shown in FIG. 1 , the support seat 1 includes a bottom plate 11 and a side plate 12. The side plate 12 is disposed on the periphery of the bottom plate 11. The bottom plate 11 is used to accommodate the inner cylinder 4, and the side plate 12 is used to mount the pressure plate mechanism 2, the push plate mechanism 3, and the welding mechanism 5.

[0030] As shown in FIG. 1, the pressure plate mechanism 2 includes a pressure plate assembly 21 and a load column 22 .

[0031] As shown in FIG. 1, the pressure plate assembly 21 includes a first pressure plate 211 , a second pressure plate 212 , and a first linear actuator 213 .

[0032] 1 and 4, the first pressure plate 211 and the second pressure plate 212 are both slidably mounted on the bottom plate 11, are arranged parallel to each other and on the same plane, and have inclined surfaces on the opposing sides of the first pressure plate 211 and the second pressure plate 212, and a welded groove 214 is left between the first pressure plate 211 and the second pressure plate 212. The inclined surfaces are inclined downward from the side of the first pressure plate 211 and the second pressure plate 212 away from the inner cylinder 4 to the side closer to the inner cylinder 4.

[0033] As shown in Figure 1, there are two first linear actuators 213, both of which are fixedly attached to the side plate 12 and drive the first pressure plate 211 and the second pressure plate 212, respectively, in a direction away from the inner cylinder 4 or in a direction towards the inner cylinder 4.

[0034] As shown in Figures 2 and 3, the load column 22 is fixedly installed near the first and second pressure plates 211 and 212 of the bottom plate 11. A gap is left between the load column 22 and the first and second pressure plates 211 and 212 to allow the two material ends 411 of the inner cylinder 4 to pass through. The axis of the load column 22 extends vertically. A vertical slot 222 is formed in the load column 22 near the welding groove 214. A first alignment block 25 and a second alignment block 26 are provided in the slot 222. The first alignment block 25 is slidably connected within the slot 222, and the second alignment block 26 is fixedly connected within the slot 222. The end faces of the first alignment block 25 and the second alignment block 26 near the welding groove 214 are flush with each other, and the first alignment block 25 and the second alignment block 26 abut against each other. The first presser plate 211 is adjacent to the first alignment block 25, and the second presser plate 212 is adjacent to the second alignment block .

[0035] As shown in Figures 6 and 7, a first hydraulic chamber 27 is provided at the bottom of the slot 222, and a first seal block 271 and a second seal block 272 are elastically connected to both sides of the first hydraulic chamber 27, respectively. The second seal block 272 is fixedly connected to the second pressing plate 212, and the first seal block 271 is located at one end of the first alignment block 25 and can return the first alignment block 25.

[0036] 1 and 3, an arc-shaped groove 221 is formed in the vertical direction at one end of the load column 22 away from the slot 222, and a rotating shaft 23 capable of driving the material end 411 of the inner cylinder 4 is rotatably mounted within the arc-shaped groove 221, with the driving shaft protruding from the edge of the load column 22. A motor 24 capable of driving the rotating shaft 23 is mounted above the load column 22, and a photoelectric sensor 28 capable of detecting the weld seam of the inner cylinder 4 is mounted on the side plate 12. A controller is connected to the motor 24, and the photoelectric sensor 28 and the controller are connected via a wireless communication module line.

[0037] 1 and 3, the inner cylinder 4 to be welded is placed on the bottom plate 11, and the inner cylinder 4 is located between the push plate mechanism 3 and the rotating shaft 23. The bottom end of the inner cylinder 4 is in contact with the bottom plate 11, so manual alignment is not required and both ends of the inner cylinder 4 are ensured to be flush. Because the inner cylinder 4 is located between the rotating shaft 23 and the push plate mechanism 3, the material end 411 of the inner cylinder 4 is in contact with the rotating shaft 23. Furthermore, the photoelectric sensor 28 detects the position of the weld seam. When the center line of the weld seam deviates from the center of the arc-shaped groove 221, the controller controls the motor 24 to rotate, and the motor 24 drives the rotating shaft 23 to rotate. As a result, the rotating shaft 23 rotates the material end 411 of the inner cylinder 4 until the weld seam reaches the center of the arc-shaped groove 221, thereby achieving pre-alignment of the weld seam. The motor 24 can drive the rotating shaft 23 to rotate forward and backward, thereby responding to a case where the center line of the weld seam deviates to either side from the center of the arc-shaped groove 221. For example, if the center line of the weld seam deviates to the left from the center of the arc-shaped groove 221, the motor 24 drives the rotating shaft 23 counterclockwise, which causes the rotating shaft 23 to move the workpiece end 411 to the right until the center line of the weld seam reaches the center of the arc-shaped groove 221.

[0038] As shown in FIG. 2, the push plate mechanism 3 includes a first push plate 31, a second push plate 32, and a third push plate 33.

[0039] As shown in FIGS. 4 to 6 , the first push plate 31 is slidably mounted on one end of the bottom plate 11 away from the load column 22. It has two inclined surfaces and one flat surface. The two inclined surfaces are arranged on either side of the flat surface, so that both the inclined surfaces and the flat surface are in contact with the inner cylinder 4. The first push plate 31 is driven by a second linear actuator 34 attached to the side plate 12. A pressure block 36 is elastically connected to the lower part of the bottom plate 11 near the first push plate 31, and a connecting rod 361 is fixedly connected between the pressure block 36 and the first alignment block 25. In the initial position, the first push plate 31 presses against the pressure block 36, and the end faces of the first alignment block 25 and the second alignment block 26 are flush with each other. When the second linear actuator 34 moves the first push plate 31 to the end near the inner cylinder 4, the first push plate 31 and the pressure block 36 separate, thereby releasing the pressure block 36. The presser block 36 and the connecting rod 361 move the first alignment block 25 to one end away from the inner cylinder 4, allowing the material end 411 of the inner cylinder 4 to abut against the edge of the first alignment block 25, thereby realizing alignment of the weld seam. In this embodiment, the first linear actuator 213, the second linear actuator 34, and the third linear actuator 35 are all composed of either pneumatic or hydraulic cylinders.

[0040] 2, the second push plate 32 and the third push plate 33 are both slidably attached to the bottom plate 11 and are disposed on either side of the first push plate 31. Of these, the second push plate 32 is provided on the side closer to the first pressing plate 211, and the second push plate 32 is driven by a third linear actuator 35 fixedly installed on the side plate 12.

[0041] As shown in FIGS. 8 to 10 , the third push plate 33 is provided on the side closer to the second presser plate 212, and a second hydraulic chamber 37 and a third hydraulic chamber 38 are attached to the side plate 12 closest to the third push plate 33, with hydraulic piping 39 connected between the second hydraulic chamber 37 and the third hydraulic chamber 38. In this embodiment, the first hydraulic chamber 27, the second hydraulic chamber 37, and the third hydraulic chamber 38 are all filled with hydraulic oil. A dummy plug 371 is elastically connected to the end of the second hydraulic chamber 37, and a trigger component 311 that triggers the operation of the dummy plug 371 is fixedly connected to the side of the first push plate 31 closer to the third push plate 33. A third seal block 381 is elastically connected within the third hydraulic chamber 38, and the third seal block 381 is fixedly connected to the third push plate 33.

[0042] As shown in Figures 8 to 10, the first push plate 31 moves to the end closer to the inner tube 4, and when the trigger part 311 contacts the dummy plug 371, it pushes the dummy plug 371 in a direction closer to the second hydraulic chamber 37, resulting in an increase in the oil pressure in the second hydraulic chamber 37 and causing hydraulic oil to flow from the second hydraulic chamber 37 to the third hydraulic chamber 38 through the hydraulic piping 39, resulting in an increase in the oil pressure in the third hydraulic chamber 38, which in turn pushes the third seal block 381 in a direction away from the third hydraulic chamber 38, thereby moving the third push plate 33 in a direction closer to the inner tube 4.

[0043] As shown in Figures 1 and 2, the heights of the first push plate 31, the second push plate 32, and the third push plate 33 are all greater than half the height of the inner tube 4, which is advantageous for keeping the side of the inner tube 4 vertical after the inner tube 4 is placed on the bottom plate 11.

[0044] 1, the inner cylinder 4 is located between the rotating shaft 23 and the first push plate 31, which reduces the installation space for the inner cylinder 4 compared to when it is located between the pressure plate assembly 21 and the first push plate 31. The periphery of the inner cylinder 4 is in contact with the rotating shaft 23, the first push plate 31, the second push plate 32, and the third push plate 33. When the photoelectric sensor 28 detects that the center line of the weld seam is deviated from the center of the arc-shaped groove 221, the motor 24 drives the rotating shaft 23 to rotate, which causes the rotating shaft 23 to rotate the material end 411 of the inner cylinder 4 until the weld seam reaches the center of the arc-shaped groove 221, thereby achieving pre-alignment of the weld seam. Then, as shown in Figures 2 and 3, the portion of the inner tube 4 facing the weld seam is fixed, and the two material ends 411 of the inner tube 4 are positioned between the first pressure plate 211 and the load column 22, and between the second pressure plate 212 and the load column 22, respectively. As shown in Figures 4 to 6, the second linear actuator 34 is activated, and the second linear actuator 34 drives the first push plate 31 to move to the end closer to the inner tube 4. At the same time, the first push plate 31 and the pressure block 36 separate, unlocking the pressure block 36. The pressure block 36 drives the connecting rod 361 and the first alignment block 25 based on elastic force, moving the first alignment block 25 in a direction away from the inner tube 4. As shown in Figures 9 and 10, when the trigger part 311 contacts the dummy plug 371, it pushes the dummy plug 371 in a direction closer to the second hydraulic chamber 37, resulting in an increase in the hydraulic pressure in the second hydraulic chamber 37, and hydraulic oil flows from the second hydraulic chamber 37 to the third hydraulic chamber 38 through the hydraulic piping 39. As a result, the hydraulic pressure in the third hydraulic chamber 38 increases, and the hydraulic pressure pushes the third seal block 381 in a direction away from the third hydraulic chamber 38, thereby moving the third push plate 33 in a direction closer to the inner tube 4. As shown in Figures 2 and 3, with the material end 411 near one end of the second pressure plate 212 in contact with the edge of the first alignment block 25, the first linear actuator 213 is activated, causing the second pressure plate 212 to press the material end 411 at that end. At the same time, the second pressure plate 212 returns the first alignment block 25 until the end faces of the first alignment block 25 and the second alignment block 26 are flush with each other.The third linear actuator 35 moves the second push plate 32 toward the inner cylinder 4, thereby bringing the material end 411 closest to one end of the first presser plate 211 into contact with the material end 411 at the other end, and the first linear actuator 213 drives the first presser plate 211 to press against the material end 411 at that end, thereby aligning the weld seam. When aligning the weld seam, first pre-aligning the weld seam reduces the distance by which the center line of the weld seam deviates from the center line of the weld groove 214. This makes it possible to adjust the second push plate 32 and the third push plate 33, located on both sides of the inner cylinder 4, to be equidistant. This eliminates the need to adjust the movement distance of the second push plate 32 and the third push plate 33 when welding the next inner cylinder 4 of the same size, improving welding efficiency.

[0045] 1, the welding mechanism 5 is provided at a position close to the welding groove 214 of the side plate 12, which is a conventional technique and will not be described in detail here. After the two material ends 411 of the inner tube 4 are aligned, the welding mechanism 5 performs welding on the weld seam.

[0046] The method of using the processing equipment for the inner cylinder 4 of the industrial washing machine according to this embodiment includes the following steps 1 to 6.

[0047] Step 1: The inner tube 4 to be welded is placed on the bottom plate 11. The inner tube 4 is positioned between the first push plate 31 and the rotating shaft 23, and the bottom end of the inner tube 4 is in contact with the bottom plate 11, so manual alignment is not required and both ends of the inner tube 4 are ensured to be flush.

[0048] Step 2: The photoelectric sensor 28 detects the position of the weld seam, and if the photoelectric sensor 28 detects that the center line of the weld seam is deviated from the center portion of the arc-shaped groove 221, the controller drives the motor 24 to rotate, and the motor 24 drives the rotating shaft 23 to rotate, so that the rotating shaft 23 rotates the material end 411 of the inner tube 4 until the weld seam reaches the center portion of the arc-shaped groove 221, thereby achieving pre-alignment of the weld seam.

[0049] Step 3: The position of the inner tube 4 is temporarily fixed by fixing the portion opposite the weld seam on the inner tube 4 and positioning the two material ends 411 of the inner tube 4 between the first pressure plate 211 and the load column 22, and between the second pressure plate 212 and the load column 22, respectively.

[0050] Step 4: The second linear actuator 34 is activated, and the second linear actuator 34 drives the first push plate 31 to move to one end close to the inner cylinder 4. At the same time, the first push plate 31 and the pressing block 36 are separated, and the pressing block 36 is unlocked. The pressing block 36 drives the connecting rod 361 and the first alignment block 25 based on its elastic force, and moves the first alignment block 25 in a direction away from the inner cylinder 4. Furthermore, the trigger part 311 comes into contact with the dummy plug 371. This pushes the dummy plug 371 in a direction closer to the second hydraulic chamber 37, resulting in an increase in the hydraulic pressure in the second hydraulic chamber 37, causing hydraulic oil to flow from the second hydraulic chamber 37 through the hydraulic piping 39 into the third hydraulic chamber 38, resulting in an increase in the hydraulic pressure in the third hydraulic chamber 38, which in turn pushes the third seal block 381 in a direction away from the third hydraulic chamber 38, thereby moving the third push plate 33 in a direction closer to the inner tube 4 and bringing the material end 411 near one end of the second pressing plate 212 into contact with the edge of the first alignment block 25.

[0051] Step 5: The first linear actuator 213 is activated, causing the second pressure plate 212 to press the material end 411 at that end; at the same time, the second pressure plate 212 returns the first alignment block 25 until the end faces of the first alignment block 25 and the second alignment block 26 are flush; further, the third linear actuator 35 moves the second push plate 32 in a direction closer to the inner tube 4, thereby bringing the material end 411 near one end of the first pressure plate 211 into contact with the material end 411 at the other end; and the first linear actuator 213 drives the first pressure plate 211 to press the material end 411 at that end, thereby achieving alignment of the weld seam.

[0052] Step 6: The welding mechanism 5 is activated to perform welding of the weld seam.

[0053] As explained, in the description of the present invention, terms such as "attached," "connected," and "coupled" should be understood in a broad sense unless otherwise specified or limited, and may refer to, for example, fixed connection, detachable connection, or integral connection, mechanical connection, electrical connection, direct connection, indirect connection via an intermediate medium, or internal communication between the two components. Those skilled in the art will be able to understand the specific meaning of the above terms in the present invention according to the actual situation.

[0054] What has been described above is the preferred embodiment of the present invention, and those skilled in the art can make many improvements and modifications without departing from the principles described in the present invention, and these improvements and modifications shall also fall within the protection scope of the present invention. [Explanation of symbols]

[0055] 1, support seat 11, bottom plate 12. Side panel 2. Presser plate mechanism 21. Retaining plate assembly 211 - First holding plate 212, second holding plate 213, the first linear actuator 214, welding groove 22. Load column 221 - Arc-shaped groove 222, Slots 23. Rotation axis 24. Motor 25, first alignment block 26, second alignment block 27. First hydraulic chamber 271, 1st seal block 272, second seal block 28. Photoelectric sensor 3. Push plate mechanism 31. First push plate 311, trigger parts 32. Second push plate 33. Third push plate 34. Second linear actuator 35. Third linear actuator 36. Pressing block 361 - Connecting rod 37. Second hydraulic chamber 371 - Dummy plug 38. Third hydraulic chamber 381, 3rd seal block 39. Hydraulic piping 4, inner cylinder 411, material edge 5. Welding mechanism

Claims

1. An inner cylinder processing facility for an industrial washing machine, comprising: a support seat having a bottom plate and a side plate; a pressure plate mechanism provided on the support seat; a push plate mechanism; and a welding mechanism, The pressure plate mechanism comprises a pressure plate assembly and a load column provided on one side of the pressure plate assembly, the axis of the load column being arranged perpendicular to the bottom plate, a slot being formed along the axis on the side of the load column closer to the pressure plate assembly, a first alignment block being slidably connected within the slot, an arc-shaped groove being formed along the axial direction on one end of the load column remote from the slot, a rotating shaft being rotatably mounted within the arc-shaped groove for rotating the material end of the inner cylinder, a motor being mounted above the load column for driving the rotating shaft, and a photoelectric sensor being mounted on the side plate for detecting the weld seam of the inner cylinder; The pressure plate assembly includes a first pressure plate and a second pressure plate slidably mounted on the bottom plate, and a first linear actuator that drives the first pressure plate and the second pressure plate in a horizontal direction, and the first linear actuator is capable of returning the first alignment block by driving and moving the second pressure plate; The push plate mechanism includes a first push plate provided at one end of the bottom plate remote from the load column, and a second push plate and a third push plate provided on both sides of the first push plate, the first push plate being driven by a second linear actuator attached to the side plate, the second push plate and the third push plate being driven by a drive assembly attached to the bottom plate, a pressure block being elastically connected to one end of the bottom plate remote from the load column, and a connecting rod being fixedly connected between the pressure block and the first alignment block, the second linear actuator driving and moving the first push plate to unlock the pressure block, thereby causing the pressure block and the connecting rod to move the first alignment block, The first and second pressure plates are located on both sides of the slot, and the opposing sides of the first and second pressure plates are provided with inclined surfaces, and a welding groove is left between the first and second pressure plates, and gaps are left between the first and second pressure plates and the load column, respectively, through which the two material ends of the inner cylinder can pass; This is an inner tube processing equipment for an industrial washing machine, characterized in that a second alignment block that abuts against the first alignment block is fixedly installed within the slot, the first pressure plate is adjacent to the first alignment block, and the second pressure plate is adjacent to the second alignment block.

2. The inner tube processing equipment for an industrial washing machine as described in claim 1, characterized in that a first hydraulic chamber is provided at the bottom of the slot, a first seal block and a second seal block are elastically connected to both sides of the first hydraulic chamber, the second seal block is fixedly connected to the second pressing plate, the first seal block is located at one end of the first alignment block, and the first alignment block can be returned.

3. The inner tube processing equipment for an industrial washing machine as described in claim 1, characterized in that the second push plate is provided on a side closer to the first pressure plate, and the drive assembly includes a third linear actuator that drives the movement of the second push plate.

4. 4. The inner tube processing equipment for an industrial washing machine according to claim 3, wherein the third push plate is provided on a side closer to the second pressing plate, the drive assembly further comprises second and third hydraulic chambers provided in the side plate and hydraulic piping connected between the second and third hydraulic chambers, a dummy plug is elastically connected to an end of the second hydraulic chamber, a trigger part for triggering the operation of the dummy plug is fixedly connected to one side of the first push plate, a third seal block is elastically connected within the third hydraulic chamber and the third seal block is fixedly connected to the third push plate.

5. 2. The industrial washing machine inner tube processing equipment according to claim 1, wherein the first push plate has two inclined surfaces and one flat surface, and the two inclined surfaces are arranged on both sides of the one flat surface, so that the two inclined surfaces and the one flat surface are in contact with the inner tube.

6. 2. The equipment for processing the inner cylinder of an industrial washing machine according to claim 1, wherein the heights of the first push plate, the second push plate and the third push plate are all greater than half the height of the inner cylinder.

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