Trimming mechanism for washing machine rubber tube processing

Abstract

The invention discloses a trimming mechanism for washing machine rubber tube processing, and relates to the technical field of rubber tube processing, the trimming mechanism comprises a working frame and a cutting structure, and the cutting structure is arranged on one side of the working frame and is provided with a cutting part; the adjusting structure is arranged on the working frame and abuts against or is far away from the cutting part of the cutting structure; the station structure is connected and fixed to one side of the working frame through the external expansion frame so that the station structure can be close to or away from the cutting structure, the station structure is provided with a machining position for placing a workpiece, the machining position corresponds to the position of the cutting part, and the machining position of the station structure and the workpiece form an air inflation cavity; and the station structure is connected with an air supply structure, so that a workpiece is shaped after the inflation chamber is pressurized. The device can adapt to trimming of fixed-length corrugated pipes and round rubber pipes, and the problem that existing manual trimming efficiency is not high is solved; and meanwhile, detection and trimming of the pipe are synchronously completed, so that the working efficiency can be greatly improved, and the product yield can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rubber tube processing, and particularly relates to a trimming mechanism for processing rubber tubes of washing machines. Background Art

[0002] Rubber tubes are one of the common accessories of washing machines, mainly used to connect the inlet and outlet pipes, and need to have sealing properties to avoid breakage and water leakage; for rubber parts with specified lengths such as washing machines, they are generally manufactured by injection molding. The rubber parts produced by injection molding all have flash, which needs to be trimmed; there are various ways of trimming, including mechanical cutting, manual trimming, thermal cutting, freezing treatment or grinding. Mechanical cutting is generally applicable to structures with specific shapes and relatively smooth outer peripheries, and manual trimming is relatively slow and suitable for more complex workpieces; the equipment costs required for thermal cutting, freezing treatment, etc. are relatively high.

[0003] The common rubber pipe fittings in washing machines are corrugated pipes, and their structures are generally: both ends have smooth pipe parts with a certain length, and the middle part is a corrugated pipe. The outer periphery of the corrugated pipe is corrugated and it is not easy to process the flash at the concave surface, and general cutting facilities are not suitable for corrugated pipes; moreover, due to the tubular structure itself and the soft characteristics of the rubber material, it is often deformed by force during production and processing, and it is not easy to be shaped, which is not conducive to mechanical cutting work, and it is easy to cause incomplete cutting or excessive cutting damage, resulting in a low yield of products. And using the freezing method greatly increases the production cost; therefore, the prior art generally uses manual processing, which is difficult to improve the production output and quality. Summary of the Invention

[0004] The purpose of the present invention is to provide a trimming mechanism for processing rubber tubes of washing machines, which solves the problems of low efficiency of manual processing and insufficient yield of mechanical cutting during trimming of existing corrugated rubber tubes.

[0005] The present invention solves the above technical problems through the following technical solutions. The present invention includes a working frame and a cutting structure, and the cutting structure is arranged on one side of the working frame and has a cutting part; An adjustment structure, arranged on the working frame and abutting against or away from the cutting part of the cutting structure; An outer expansion frame and a working station structure. The working station structure is connected and fixed to one side of the working frame through the outer expansion frame to move the working station structure closer to or away from the cutting structure. The working station structure has a processing position for placing workpieces, and the position of the processing position corresponds to that of the cutting part. An inflation chamber is formed between the processing position of the working station structure and the workpiece. The working station structure is connected with a gas supply structure to shape the workpiece after pressurizing the inflation chamber; An exhaust structure, connected to the working station structure, and the exhaust structure communicates the inflation chamber with the outside and shows the ventilation volume.

[0006] Preferably, the adjustment structure includes two adjusting parts and a contouring part; The adjusting member includes a screw threadedly connected to the working frame, one end of the screw is rotatably connected to a long plate, and a guide column is fixed on the long plate and is slidably connected to the working frame; The hook member includes structural group one and structural group two, both of which are composed of multiple L-shaped rods arranged at equal intervals. The structural group one and structural group two are respectively connected to two long plates, and the number of L-shaped rods in structural group one is equal to the number of intervals between the L-shaped rods in structural group two.

[0007] Preferably, the cutting structure includes a mounting rod and a knife belt. The mounting rod is slidably set on the workbench and two are provided. The knife belt is detachably fixed between the two mounting rods. The knife belt is set between structure group one and structure group two. The structure group one and structure group two are close to each other and abut the knife belt to form a cutting part.

[0008] Preferably, the outward expansion frame includes a telescopic member and a cross bar. The cross bar is telescopically fixed to one side of the working frame through the telescopic member. A telescopic driver is further provided between the working frame and the cross bar to drive the cross bar to extend and retract.

[0009] Preferably, the work station structure includes a splicing frame, which is connected to a cross bar, and two coaxially arranged long tubes are rotatably connected to the splicing frame, and the two long tubes are fixed with a work station ball in communication with each other at one end close to each other, and the work station ball is provided with an air vent, and the long tubes are connected with a rotating connector at one end away from each other, and a regulating valve is connected to one of the rotating connectors, and the regulating valve is connected to an external air supply structure, and a driving structure for synchronously driving the two long tubes is provided on the splicing frame.

[0010] Preferably, the driving structure includes a long shaft, a synchronous transmission structure and a power structure; The long shaft is rotatably connected to the splicing frame, and both ends of the long shaft are transmission-connected to two long tubes through a synchronous transmission structure; The power structure includes a motor fixedly connected to the splicing frame, a main gear is fixed on the output shaft of the motor, a slave gear is fixed on the long shaft, and the main gear is meshed with the slave gear.

[0011] Preferably, the cross bar is slidably connected to the splicing frame, the cross bar is slidably connected to the mounting frame, the mounting frame is fixed to the splicing frame, and the mounting frame is threadedly connected with bolts to abut the cross bar to fix the mounting frame.

[0012] Preferably, the exhaust structure includes an exhaust pipe and a graduated pipe. One end of the exhaust pipe is connected to another rotating connector, and the graduated pipe is connected to the other end of the exhaust pipe. The other end of the graduated pipe opens upward and is fixed with an L-shaped member at the top. A thin shaft coaxial with the graduated pipe is fixed on the L-shaped member. An anti-drop ball is fixed at the lower end of the thin shaft. A floating ball is movably sleeved on the thin shaft and is received by the anti-drop ball. A tension spring is connected to the L-shaped member and is fixed to the floating ball. An isolation ring is provided on the outer periphery of the graduated pipe to divide the outer periphery of the graduated pipe into upper and lower display areas.

[0013] Preferably, the working frame includes a structural frame and wing frames. The structural frame is in a shape of a rectangle with a hollow center, and at least two wing frames are provided. The two wing frames are symmetrically distributed on both sides of the structural frame with respect to the axis.

[0014] Preferably, a recycling bin is provided on one side of the structural frame, and a blocking strip is provided on the wing frame on one side of the structural frame. The structural frame, the wing frame and the blocking strip form a retention area for placing the recycling bin.

[0015] The beneficial effects of the present invention compared with the prior art are as follows: The adjustment structure is used in cooperation with the cutting structure to cause the knife belt to be corrugated by extrusion deformation, which is adapted to the bellows to be trimmed. The burrs can be trimmed by the cutting force formed by the deformed knife belt; the screw on the adjustment structure is adjustable, and the abutting state against the knife belt can be adjusted, so that the corrugation depth of the cutting part on the mounting rod can be adjusted. When not in contact, the mounting rod can be fixed in a straight line, and cylindrical and tubular workpieces with a smooth outer periphery and a fixed length can be trimmed; the mounting rod is adjustable, and the knife belt can also be fixed in an inclined posture with a deflection angle, and frustum-shaped and conical workpieces can be trimmed.

[0016] The station structure is connected to the external air supply structure, and stable air pressure with a certain pressure value is obtained through the regulating valve. The gas passes through the station structure and cooperates with the workpiece to form a channel for containing the gas. At this time, when the air pressure is at a certain value, the rubber tube is kept in a firm posture. When the rubber tube maintains the posture, it contacts and cuts with the cutting part of the knife belt, so as to avoid the purpose of incomplete cutting and improve the product yield during cutting.

[0017] The station structure is exhausted by the exhaust structure using the gas from the air supply structure. A floating ball and a tension spring are arranged in the exhaust structure for convenient observation. The exhausted air flow pushes the floating ball, causing the floating ball to obtain a relative position with respect to the graduated tube. When the workpiece being processed is not damaged and airtight, a relative position is obtained through a stable air flow; when the workpiece being processed is damaged and air leaks, a relative position is also obtained through a stable air flow. Since air leakage due to workpiece damage reduces the air flow passing through the graduated tube, and thus the floating ball is located below the relative position of the stable air flow, it can be determined that the processed workpiece is damaged and can be removed. This realizes the airtightness detection of the product while trimming the edge, achieving the reduction of process steps while improving the product yield.

[0018] A recovery cylinder is arranged at the rear side of the workbench. The damaged pipe fittings obtained through the airtightness detection of the exhaust structure are recovered and can be reused in production. And it is arranged at the rear side of the equipment, which is convenient for the operator to directly discard them into the recovery cylinder. Brief Description of the Drawings

[0019] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 is Figure 1 a partial structural schematic diagram of Figure 3 is Figure 2 a three-dimensional structural schematic diagram of Figure 4 is Figure 1 a structural schematic diagram of the station structure in Figure 5 is Figure 4 a three-dimensional structural schematic diagram of Figure 6 is Figure 1 a structural schematic diagram of the exhaust structure in The numbers in the figures represent: 1. Workbench; 11. Structural frame; 12. Flank frame; 2. Adjustment structure; 21. Screw rod; 22. Long plate; 23. Guide post; 24. Contouring member; 3. Cutting structure; 31. Mounting rod; 32. Knife belt; 4. Outer expansion frame; 41. Telescopic member; 42. Cross bar; 43. Telescopic driver; 5. Station structure; 51. Splicing frame; 52. Long tube; 53. Station ball; 54. Rotating connector; 55. Control valve; 56. Long shaft; 57. Synchronous transmission structure; 58. Power structure; 6. Exhaust structure; 61. Exhaust pipe; 62. Graduated tube; 63. L-shaped member; 64. Thin shaft; 65. Anti-disengagement ball; 66. Floating ball; 67. Tension spring; 68. Isolation ring; 7. Recovery cylinder. Detailed Embodiment

[0020] The following further elaborates on the above and other technical features and advantages of the present invention in more detail with reference to the accompanying drawings. Embodiment

[0021] This embodiment provides a technical solution: a trimming mechanism for processing rubber hoses of a washing machine. As Figure 1-6 shown, it includes a working frame 1, an adjustment structure 2, and a cutting structure 3. The cutting structure 3 is arranged on one side of the working frame 1 and has a cutting part; the adjustment structure 2 is arranged on the working frame 1 and abuts against or moves away from the cutting part of the cutting structure 3; Among them, the working frame 1 is in a shape of a rectangle with a hole in the middle, and an installation structure is also arranged on the working frame 1, and the working frame 1 can be fixed to the ground or a flat table through the installation structure.

[0022] Optionally, the adjustment structure 2 includes two adjusting members and a outlining member 24; the adjusting member includes a screw rod 21 threadedly connected to the working frame 1, one end of the screw rod 21 is rotatably connected to a long plate 22, and a guiding column 23 fixedly connected to the long plate 22 and slidably inserted into the working frame 1 is provided; Among them, the screw rod 21 is threadedly connected to the working frame 1, and an inner hexagon wrench slot is machined at one end of the screw rod 21. By rotating the screw rod 21, the screw rod 21 can be moved relative to the working frame 1, and the screw rod 21 and the long plate 22 can be rotated through a bearing; when the screw rod 21 moves relative to the working frame 1, the guiding column 23 on the long plate 22 slides relative to the working frame 1, providing a guiding function for the movement of the long plate 22.

[0023] The outlining member 24 includes Structure Group One and Structure Group Two. Both Structure Group One and Structure Group Two are composed of a plurality of equidistantly arranged L-shaped rods. Structure Group One and Structure Group Two are respectively connected to the two long plates 22, and the number of L-shaped rods in Structure Group One is equal to the number of intervals of the L-shaped rods in Structure Group Two.

[0024] Among them, the number of Structure Group One and Structure Group Two in the outlining member 24 differs by one, and the L-shaped rods in the outlining member 24 are equally spaced from each other. To meet the usage requirements, the number of L-shaped rods in the outlining member 24 can be set according to requirements. In this embodiment, the number of L-shaped rods in Structure Group One is five, and the number of L-shaped rods in Structure Group Two is six. For specific reference, see Figure 2 .

[0025] Specifically, when Structure Group One and Structure Group Two move closer to each other, the L-shaped rods will abut against the cutting structure 3. At this time, the cutting structure 3 forms a bend and is in a corrugated shape, while when moving away from each other, the cutting structure 3 is in a straight state; it should be noted that the cutting structure 3 can be adjusted.

[0026] Optionally, the cutting structure 3 includes a mounting rod 31 and a cutting belt 32. There are two mounting rods 31 which are slidably arranged on the working frame 1. The cutting belt 32 is detachably fixed between the two mounting rods 31. The cutting belt 32 is arranged between the first structure group and the second structure group. The first structure group and the second structure group are mutually close to abut against the cutting belt 32 to form a cutting part.

[0027] Wherein, when the cutting belt 32 abuts against or moves away from the first structure group and the second structure group, the fixing position of the cutting belt 32 can be adjusted so that the cutting belt 32 is in a tensioned state; the front side of the cutting belt 32 is set in a blade shape, and the cutting belt 32 does not protrude from the front end of the L-shaped rod, so as to keep the cutting belt 32 capable of cutting the burrs; in this embodiment, the mounting rod 31 is slidably arranged on the working frame 1. Here, an implementation manner is provided: a chute is arranged on the working frame 1, a slider is arranged on the chute, the slider is fixed to the mounting rod 31, a bolt is threadedly connected to the slider, and a long groove for the bolt to slide is formed on the working frame 1. The slider is fixed by abutting the bolt against the working frame 1, so that the position of the mounting rod 31 is fixed. Other structures with the same function can also be implemented. In this embodiment, a notch for mounting the cutting belt 32 is arranged on the mounting rod 31. The two ends of the cutting belt 32 can be embedded into the notch, and then the mounting rod 31 and the cutting belt 32 are fixed by bolts.

[0028] An outer expansion frame 4 is arranged on the front side of the working frame 1. A working position structure 5 is arranged on the outer expansion frame 4. The working position structure 5 is connected and fixed to one side of the working frame 1 through the outer expansion frame 4 to move the working position structure 5 closer to or away from the cutting structure 3; Optionally, the outer expansion frame 4 includes a telescopic member 41 and a cross bar 42. The cross bar 42 is telescopically fixed to one side of the working frame 1 through the telescopic member 41. A telescopic driver 43 is also arranged between the working frame 1 and the cross bar 42 to drive the cross bar 42 to expand and contract.

[0029] Wherein, the telescopic member 41 is a telescopic rod structure, specifically a sleeve and a plug rod inserted therein, and a flange structure is arranged between the two to prevent detachment and avoid their separation. The cross bar 42 is used to connect one end of the two telescopic members 41, so that the cross bar 42 can expand and contract. In this embodiment, the telescopic driver 43 can be selected from an electric telescopic rod, a hydraulic telescopic rod, and a pneumatic telescopic rod; in consideration of the universality of the facilities, the telescopic driver 43 is selected as an electric telescopic rod. And the telescopic driver 43 is connected to an external power supply and a control switch to realize start-stop control.

[0030] The working position structure 5 has a processing position for placing a workpiece. The processing position corresponds to the position of the cutting part. An inflation chamber is formed between the processing position of the working position structure 5 and the workpiece. The working position structure 5 is connected with a gas supply structure so that the workpiece is shaped after the inflation chamber is pressurized; Optionally, the station structure 5 includes a splicing frame 51, the splicing frame 51 is connected to the cross bar 42, two coaxial long tubes 52 are rotatably connected to the splicing frame 51, and working position balls 53 communicated with each other are fixed at one ends of the two long tubes 52 close to each other. Vent holes are provided on the working position balls 53. Rotating connectors 54 are connected to the other ends of the long tubes 52 away from each other. A regulating valve 55 is connected to one of the rotating connectors 54, and the regulating valve 55 is connected to an external air supply structure. A driving structure for synchronously driving the two long tubes 52 is provided on the splicing frame 51.

[0031] Among them, the splicing frame 51 is arranged in an I shape, and the long tube 52 is rotatably connected to the splicing frame 51 through a bearing; in order to keep the workpiece placed stably, the long tube 52 and the working position ball 53 are coaxially arranged; a gradient ring is provided on the working position ball 53 to keep the rubber pipe fitting sleeved on the working position ball 53 stably; the function of the rotating connector 54 is to rotate while maintaining communication. The air pressure entering can be adjusted and stabilized through the regulating valve 55, so that the air flow entering the working position ball 53 is stable. The distance between the working position balls 53 can be adjusted or set according to requirements; the schematic structure of the workpiece to be processed is shown in this embodiment, which can be referred to Figure 1 .

[0032] Among them, the purpose of the driving structure is to provide synchronous rotation for the long tube 52; any structure with the corresponding function can be used. This embodiment provides an implementation method: Further optionally, the driving structure includes a long shaft 56, a synchronous transmission structure 57 and a power structure 58; the long shaft 56 is rotatably connected to the splicing frame 51, and both ends of the long shaft 56 are drivingly connected to the two long tubes 52 through the synchronous transmission structure 57; the power structure 58 includes a motor fixedly connected to the splicing frame 51, a main gear is fixed on the output shaft of the motor, and a driven gear is fixed on the long shaft 56, and the main gear meshes with the driven gear.

[0033] It should be noted that the synchronous transmission structure 57 is a pulley structure in the prior art, and can also be replaced by an existing technology with the same function such as a sprocket structure, which will not be elaborated here; the motor is connected to an external power supply and a control switch to realize the start-stop control of the motor, and the motor has a speed regulation function.

[0034] Among them, in order to further meet the cutting of pipe fittings with different diameters, the following solution is also provided in this embodiment; Further optionally, the cross bar 42 is slidably connected to the splicing frame 51, an installation frame is slidably connected to the cross bar 42, the installation frame is fixed to the splicing frame 51, and a bolt is threadedly connected to the installation frame to abut against the cross bar 42 to fix the installation frame. Thus, the station structure 5 on the cross bar 42 can be moved and adjusted in position.

[0035] An exhaust structure 6 is connected to the station structure 5. The exhaust structure 6 communicates the inflation chamber with the outside and shows the ventilation volume. Optionally, the exhaust structure 6 includes an exhaust pipe 61 and a graduated tube 62. One end of the exhaust pipe 61 is connected to another rotating connector 54, and the graduated tube 62 is connected to the other end of the exhaust pipe 61. The other end of the graduated tube 62 opens upward and an L-shaped member 63 is fixed at the top. A thin shaft 64 coaxial with the graduated tube 62 is fixed on the L-shaped member 63. An anti-drop ball 65 is fixed at the lower end of the thin shaft 64. A floating ball 66 is movably sleeved on the thin shaft 64 and is supported by the anti-drop ball 65. A tension spring 67 is connected to the L-shaped member 63 and is fixed to the floating ball 66. An isolation ring 68 is arranged on the outer periphery of the graduated tube 62 to divide the outer periphery of the graduated tube 62 into upper and lower display areas.

[0036] Among them, the graduated tube 62 and the splicing frame 51 are fixed by an installation bracket. The exhaust pipe 61 conveys air into the graduated tube 62, and then the floating ball 66 sliding on the thin shaft 64 is lifted by the conveyed air flow. Since the diameter of the floating ball 66 is smaller than the inner wall of the graduated tube 62, a stable flow channel is formed between the two. The provided tension spring 67 pulls the floating ball 66. When the air flow blows the floating ball 66, the tension force received by the tension spring 67 decreases, and thus the floating ball 66 can move up a certain position. The graduated tube 62 is made of a transparent material, which is convenient for observing the change of the internal structure position. Since the air flow passing through the long tube 52 and the station ball 53 needs to be sealed after cooperating with the workpiece to discharge the air flow sent from the outside through the exhaust structure 6. When the workpiece is damaged, a certain amount of air flow will be discharged. In this way, the air flow passing through the exhaust structure 6 weakens, and the air flow thrust obtained by the floating ball 66 weakens. The position of the floating ball 66 is no longer the position where the floating ball 66 is located when the workpiece is not damaged. In this way, it can be judged whether the workpiece is damaged. In this embodiment, the isolation ring 68 is used to separate the positions of the floating ball 66 when the workpiece is not damaged and damaged. Whether the workpiece is damaged can be judged by the relative position between the floating ball 66 and the isolation ring 68.

[0037] The working principle of this embodiment is as follows: By adjusting the structure 2, the required deformation can be made to the knife belt 32 on the cutting structure 3. Then, the required workpiece is placed between the two station balls 53 and aligned. Then, the external air supply structure is turned on to obtain a stable air flow through the regulating valve 55, and then successively through the rotating connector 54, the long pipe 52, the station ball 53, the inner cavity of the workpiece, the station ball 53, the long pipe 52, the rotating connector 54, and finally flows into the exhaust structure 6. The stable air flow enables the workpiece to obtain plasticity under the docking and sealing of the station ball 53 and maintain a stable posture for machining. According to the relative position of the floating ball 66 and the isolation ring 68 in the exhaust structure 6, it can be judged whether there is an air leakage phenomenon in the workpiece, and the workpiece can be inspected. The purpose of inspection can be achieved during the trimming process of rubber pipe workpieces, especially corrugated rubber pipe fittings, which can reduce the production process steps to improve production efficiency and product yield. Embodiment

[0038] This embodiment is further optimized on the basis of Embodiment 1. The same parts as the foregoing technical solutions will not be described herein again. As Figure 1-2 shown, in order to better implement the present invention, the following setting method is particularly adopted: The working frame 1 includes a structural frame 11 and wing frames 12. The structural frame 11 is in a square shape with a hole in the middle, and at least two wing frames 12 are provided. The two wing frames 12 are symmetrically distributed on both sides of the structural frame 11. In this embodiment, the wing frames 12 are set to four. Refer to Figure 1 . Using the bracket structure can greatly reduce the weight of the equipment, facilitate the installation and flipping maintenance of the equipment. At the same time, setting the wing frames 12 can provide good support stability.

[0039] A recovery cylinder 7 is provided on one side of the structural frame 11, and a blocking strip is provided on the wing frame 12 on one side of the structural frame 11. The structural frame 11, the wing frame 12 and the blocking strip form a retention area for placing the recovery cylinder 7. The recovery cylinder 7 is placed in the retention area. The blocking strip can prevent the recovery cylinder 7 from moving when the waste hits the recovery cylinder 7, and can keep the recovery cylinder 7 stable in the retention area. The purpose of setting the recovery cylinder 7 is to recover the waste at a fixed point, which can avoid the random discard of waste and cause the working environment to be messy.

[0040] The above are only the preferred embodiments of the present invention, which are illustrative rather than restrictive to the present invention. Those skilled in the art understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, but all will fall within the protection scope of the present invention.

Claims

1. A trimming mechanism for processing a rubber tube of a washing machine, characterized in that, Comprising: A working frame (1) and a cutting structure (3), the cutting structure (3) is arranged on one side of the working frame (1) and has a cutting part; An adjustment structure (2), arranged on the working frame (1) and abuts against or away from the cutting part of the cutting structure (3); An outward expansion frame (4) and a working station structure (5), the working station structure (5) is connected and fixed to one side of the working frame (1) through the outward expansion frame (4) to move the working station structure (5) closer to or away from the cutting structure (3), the working station structure (5) has a processing position for placing a workpiece, the position of the processing position corresponds to that of the cutting part, an inflation chamber is formed between the processing position of the working station structure (5) and the workpiece, and the working station structure (5) is connected with a gas supply structure to pressurize the inflation chamber to shape the workpiece; An exhaust structure (6), connected to the working station structure (5), the exhaust structure (6) communicates the inflation chamber with the outside and shows the ventilation volume.

2. The trimming mechanism for processing the washing machine rubber tube according to claim 1, characterized in that, The adjustment structure (2) includes two adjusting parts and a contouring part (24); Each adjusting part includes a screw rod (21) threadedly connected to the working frame (1), one end of the screw rod (21) is rotatably connected with a long plate (22), and a guiding column (23) slidably inserted into the working frame (1) is fixed on the long plate (22); The contouring part (24) includes a structure group one and a structure group two, both the structure group one and the structure group two are composed of a plurality of L-shaped rods arranged at equal intervals, the structure group one and the structure group two are respectively connected to the two long plates (22), and the number of L-shaped rods in the structure group one is equal to the interval number of the L-shaped rods in the structure group two.

3. The trimming mechanism for processing the washing machine rubber tube according to claim 2, characterized in that, The cutting structure (3) includes a mounting rod (31) and a knife belt (32), the mounting rod (31) is slidably arranged on the working frame (1) and there are two of them, the knife belt (32) is detachably fixed between the two mounting rods (31), the knife belt (32) is arranged between the structure group one and the structure group two, and the structure group one and the structure group two are close to each other and abut against the knife belt (32) to form a cutting part.

4. The trimming mechanism for processing washing machine rubber hoses according to claim 1, characterized in that, The outward expansion frame (4) includes a telescopic part (41) and a cross bar (42), the cross bar (42) is telescopically fixed to one side of the working frame (1) through the telescopic part (41), and a telescopic driver (43) is further arranged between the working frame (1) and the cross bar (42) to drive the cross bar (42) to expand and contract.

5. The trimming mechanism for processing the washing machine rubber tube according to claim 4, characterized in that, The working station structure (5) includes a splicing frame (51), the splicing frame (51) is connected to the cross bar (42), two coaxially arranged long tubes (52) are rotatably connected to the splicing frame (51), working station balls (53) communicated with each other are fixed at one end of the two long tubes (52) close to each other, air permeation holes are arranged on the working station balls (53), rotary connectors (54) are connected to one end of the two long tubes (52) far from each other, a regulating valve (55) is connected to one of the rotary connectors (54), the regulating valve (55) is connected to an external gas supply structure, and a driving structure for synchronously driving the two long tubes (52) is arranged on the splicing frame (51).

6. The trimming mechanism for processing the washing machine rubber tube according to claim 5, characterized in that, The driving structure includes a long shaft (56), a synchronous transmission structure (57) and a power structure (58); The long shaft (56) is rotatably connected to the splicing frame (51), and both ends of the long shaft (56) are transmission-connected to the two long tubes (52) via a synchronous transmission structure (57); The power structure (58) includes a motor fixedly connected to the splicing frame (51), a main gear is fixed on the output shaft of the motor, a slave gear is fixed on the long shaft (56), and the main gear is meshed with the slave gear.

7. The trimming mechanism for processing the washing machine rubber tube according to claim 5, characterized in that, The cross bar (42) is slidably connected to the splicing frame (51), the cross bar (42) is slidably connected to the mounting frame, the mounting frame is fixed to the splicing frame (51), and the mounting frame is threadedly connected with a bolt to abut the cross bar (42) to fix the mounting frame.

8. The trimming mechanism for processing washing machine rubber hoses according to claim 5, wherein, The exhaust structure (6) comprises an exhaust pipe (61) and a graduated tube (62). One end of the exhaust pipe (61) is connected to another rotating connector (54), and the graduated tube (62) is connected to the other end of the exhaust pipe (61). The other end of the graduated tube (62) is open upward and an L-shaped member (63) is fixed on the top. A thin shaft (64) coaxial with the graduated tube (62) is fixed on the L-shaped member (63). An anti-slip ball (65) is fixed on the lower end of the thin shaft (64). A floating ball (66) is movably sleeved on the thin shaft (64) and supported by the anti-slip ball (65). A tension spring (67) is connected to the L-shaped member (63), and the tension spring (67) is fixed to the floating ball (66). An isolation ring (68) is provided on the periphery of the graduated tube (62) to divide the periphery of the graduated tube (62) into two upper and lower display areas.

9. The trimming mechanism for processing the washing machine rubber tube according to claim 8, characterized in that, The working frame (1) comprises a structural frame (11) and side wing frames (12); the structural frame (11) is in the shape of a Chinese character "回"; at least two side wing frames (12) are provided; and the two side wing frames (12) are axially symmetrically distributed on both sides of the structural frame (11).

10. The trimming mechanism for processing washing machine rubber hoses according to claim 9, characterized in that, A recovery drum (7) is provided on one side of the structural frame (11), and a blocking bar is provided on a wing frame (12) located on one side of the structural frame (11). The structural frame (11), the wing frame (12) and the blocking bar form a retention area for placing the recovery drum (7).

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