Feeding device of roll net welding machine

Abstract

The technical scheme belongs to the technical field of net rolling welding equipment, and particularly relates to a feeding device of a net rolling welding machine. The traction mechanism is arranged on the rack in a sliding manner and is used for clamping the screen cloth at the previous station; the clamping mechanism is installed on the rack and located beside the traction mechanism; the plurality of supporting mechanisms are mounted on the rack; the conveying mechanism is mounted on the rack and is used for conveying the screen cloth to a next station; the traction mechanism comprises a traction sliding table which is arranged on the rack in a sliding manner; the second driving assembly is movably connected with the rack and the traction sliding table; the traction clamping jaw is mounted on the traction sliding table in a sliding manner; the traction mechanism takes out the screen cloth cut at the previous station and conveys the screen cloth to the next station through the conveying mechanism, conveying of the screen cloth is achieved, manual conveying is avoided, and the production efficiency is improved. Meanwhile, the supporting mechanism prevents the middle of the screen cloth from being sunken due to the fact that the screen cloth is too long, and therefore the quality of the screen cloth welded to the center pipe at the next station is guaranteed.

Description

TECHNICAL FIELD

[0001] The technical scheme relates to the technical field of net welding equipment, in particular to a feeding device of a net welding machine. BACKGROUND

[0002] In the process of oil and gas drilling, in order to prevent sand production from oil and gas wells from causing casing and equipment damage and production reduction, a screen pipe is usually used for sand prevention.

[0003] For example, Chinese patent CN202110256197.5 discloses a sand prevention screen pipe and its application, and Chinese patent CN200620012375.0 discloses a multi-layer stainless steel mesh cloth sand prevention screen pipe. These screen pipes generally include an inner center pipe (also known as an inner sheath or base pipe) and a mesh cloth wrapped outside the center pipe (including an inner drainage mesh and a variable-precision composite sand blocking layer, or a metal mesh cloth sand prevention screen sleeve).

[0004] However, there are still some deficiencies in the production process of the existing screen pipes: the stacked mesh cloth needs to be manually transported to the welding station for welding operation. Since the length of the mesh cloth is too long, manual transportation is inconvenient, time-consuming and labor-intensive, which affects production efficiency. At the same time, the mesh cloth is generally stacked by several layers of raw materials, which causes the misalignment of the upper and lower mesh cloths during manual transportation, affecting the quality of the mesh cloth welded to the center pipe. SUMMARY

[0005] The technical scheme aims to provide a feeding device of a net welding machine, which pulls out the mesh cloth from the previous station through a traction mechanism, and then transports the mesh cloth to the next station through a conveying mechanism, thereby improving the problem of low production efficiency caused by manual transportation of the mesh cloth.

[0006] The technical scheme is achieved in the following manner:

[0007] A feeding device of a net welding machine for moving the mesh cloth to a set position, comprising:

[0008] a rack;

[0009] a traction mechanism slidingly arranged on the rack for clamping the mesh cloth conveyed from the previous station;

[0010] a clamping mechanism installed on the rack and located beside the traction mechanism for clamping the mesh cloth;

[0011] a plurality of supporting mechanisms installed on the rack and movably arranged between the traction mechanism and the clamping mechanism for supporting the lower end of the mesh cloth;

[0012] a conveying mechanism installed on the rack for conveying the mesh cloth to the next station;

[0013] The traction mechanism comprises:

[0014] a traction slide plate slidingly mounted on the frame;

[0015] a second driving assembly movably connecting the frame and the traction slide plate, for driving the traction slide plate to move towards or away from the discharge end of the previous work station;

[0016] a traction gripper slidingly mounted on the traction slide plate, for clamping the end of the web;

[0017] When the traction gripper clamps the end of the web, the second driving assembly drives the traction slide plate to move on the frame, so that the traction slide plate moves towards the direction away from the previous work station, thereby realizing pulling the web.

[0018] Preferably, the traction mechanism further comprises:

[0019] a nineteenth driving member mounted on the traction slide plate, and a driving end of the nineteenth driving member being connected to the traction gripper, for driving the traction gripper to slide on the traction slide plate;

[0020] Preferably, the supporting mechanism comprises:

[0021] a fourth driving member mounted on the frame;

[0022] an oscillating arm, a rear end of which is hingedly connected to the frame, and a middle part of the oscillating arm being hingedly connected to a driving end of the fourth driving member;

[0023] a supporting plate slidingly arranged on the oscillating arm, for supporting the lower end of the web;

[0024] a fifth driving member mounted on the oscillating arm, and a driving end of the fifth driving member being movably connected to the supporting plate, for driving the supporting plate to move on the oscillating arm;

[0025] When the traction mechanism pulls the web to move towards the direction away from the previous work station, the oscillating arm rotates and the supporting plate extends, thereby realizing supporting the lower end of the pulled web.

[0026] Preferably, the supporting mechanism further comprises:

[0027] a supporting platform mounted on the frame and located beside the oscillating arm, for supporting the web conveyed by the conveying mechanism.

[0028] Preferably, the clamping mechanism comprises:

[0029] a second support frame mounted on the frame;

[0030] Two clamping assemblies are arranged on the support frames two in an up-down manner, and a clamping area is formed between the two clamping assemblies for clamping the screen cloth;

[0031] The clamping assembly comprises:

[0032] The sixth driving member is installed on the second support frame;

[0033] The clamping rollers are rotatably connected to the driving ends of the sixth driving members;

[0034] The seventh driving member is installed on the second support frame;

[0035] The rotation limiting blocks are installed on the driving ends of the seventh driving members, and the rotation limiting blocks movably abut against the clamping rollers for limiting the rotation of the clamping rollers;

[0036] When the sixth driving members drive the corresponding clamping rollers to move, the two clamping rollers move close to each other to clamp the screen cloth in the clamping area, and the cutting mechanism on the rack 1 is used to cut the screen cloth.

[0037] Preferably, the clamping assembly further comprises:

[0038] The clamping plates are installed on the driving ends of the sixth driving members, and the clamping plates are located beside the clamping rollers;

[0039] When the two clamping rollers move close to each other, the two clamping plates abut against the upper and lower ends of the screen cloth, respectively.

[0040] Preferably, the conveying mechanism comprises:

[0041] The first conveying assembly is installed on the traction mechanism;

[0042] The second conveying assembly is installed on the rack and located beside the clamping mechanism;

[0043] The first conveying assembly comprises:

[0044] The third support frame is slidably installed on the traction slide table;

[0045] The third driving assembly is installed on the traction slide table and movably connected to the third support frame, for driving the third support frame to slide on the traction slide table, so that the third support frame moves close to or away from the previous work station;

[0046] The first sliding frame is slidably installed on the third support frame;

[0047] The fourth driving assembly is connected to the third support frame and the first sliding frame, for driving the first sliding frame to slide on the third support frame, so that the first sliding frame moves close to or away from the next work station;

[0048] At least one clamping jaw assembly one is installed on the sliding frame one for clamping the front end of the mesh cloth;

[0049] The clamping jaw assembly one comprises:

[0050] A driving member eight is installed on the sliding frame one;

[0051] A conveying clamping jaw one is installed on the driving end of the driving member eight for clamping the mesh cloth.

[0052] Preferably, the conveying assembly two comprises:

[0053] A support frame four is installed on the rack;

[0054] A sliding frame two is slidingly arranged on the support frame four;

[0055] A driving assembly five is connected between the support frame four and the sliding frame two for driving the sliding frame two to slide on the support frame four so that the sliding frame two approaches or moves away from the next work station;

[0056] At least one conveying clamping jaw two is installed on the sliding frame two for clamping the mesh cloth.

[0057] Preferably, the support frame two of the clamping mechanism is provided with a driving member nine, the driving end of the driving member nine is connected with a top block, and the top block is located beside the clamping assembly of the clamping mechanism;

[0058] When the driving member nine drives the top block to move towards the mesh cloth, the top block abuts against the lower end of the mesh cloth and makes the rear end of the mesh cloth elastically deform towards the direction away from the top block, so that the end of the mesh cloth is placed in the conveying clamping jaw two.

[0059] Preferably, a sliding frame three and a driving member eleven are slidingly arranged on the rack, the support mechanism is arranged on the sliding frame three, and the driving end of the driving member eleven is connected with the sliding frame three for driving the sliding frame three to slide on the rack to adjust the height of the support mechanism.

[0060] The technical scheme has the following prominent and beneficial technical effects compared with the prior art:

[0061] The traction mechanism of the technical scheme takes out the mesh cloth cut by the previous work station and conveys the mesh cloth to the next work station under the operation of the conveying mechanism, so that the mesh cloth is conveyed without manual operation, the production efficiency is improved, and the support mechanism avoids the mesh cloth from being depressed in the middle due to being too long, so that the quality of the mesh cloth welded to the center pipe in the next work station is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0062] Figure 1 It is a structural schematic view of the technical scheme.

[0063] Figure 2 It is a structural schematic view of the transport assembly one of the technical scheme.

[0064] Figure 3 It is a structural schematic view of the traction mechanism of the technical scheme.

[0065] Figure 4 It is a structural schematic view of the clamping mechanism and the transport assembly two of the technical scheme.

[0066] Figure 5 It is a structural schematic view of the transport assembly two of the technical scheme.

[0067] Figure 6 It is a structural schematic view of the clamping mechanism of the technical scheme.

[0068] Figure 7 It is a structural schematic view of the supporting mechanism of the technical scheme.

[0069] Figure 8 It is a second structural schematic view of the technical scheme.

[0070] Reference signs: 1, frame; 41, traction mechanism; 42, traction sliding table; 43, driving assembly two; 44, traction clamping jaw; 45, driving piece nineteen;

[0071] 5, clamping mechanism; 51, support frame two; 52, clamping assembly; 53, driving piece six; 54, clamping roller; 55, driving piece seven; 56, rotation limiting block; 57, clamping plate; 58, clamping area;

[0072] 6, supporting mechanism; 61, driving piece four; 62, swing arm; 63, supporting plate; 64, driving piece five; 65, supporting table; 66, sliding frame three; 67, driving piece eleven;

[0073] 71, transport assembly one; 72, support frame three; 73, driving assembly three; 74, sliding frame one; 75, driving assembly four; 76, clamping jaw assembly one; 761, driving piece eight; 762, transport clamping jaw one; 77, transport assembly two; 771, support frame four; 772, sliding frame two; 773, driving assembly five; 774, transport clamping jaw two; 78, driving piece nine; 781, top block;

[0074] 100, mesh cloth. DETAILED DESCRIPTION

[0075] The specific embodiments of the technical scheme are further described in detail below in combination with the drawings, referring to Figures 1-8 .

[0076] As Figure 1 shown in the drawings, a feeding device of a web welding machine for moving the web to a set position, comprising:

[0077] a frame 1;

[0078] a traction mechanism 41 slidingly arranged on the frame 1 for clamping the web 100 conveyed from the previous station, the previous station being a station for conveying the web to the traction mechanism 41 by manual or mechanical operation so as to be clamped by the traction mechanism 41;

[0079] a clamping mechanism 5 mounted on the frame 1 and located beside the traction mechanism 41 for clamping the web 100;

[0080] a plurality of supporting mechanisms 6 mounted on the frame 1 and movably arranged between the traction mechanism 41 and the clamping mechanism 5 for supporting the lower end of the web 100 pulled out by the traction mechanism 41 to avoid the middle part of the web 100 from being concave downward due to the excessive length of the web 100;

[0081] a conveying mechanism mounted on the frame 1 for conveying the cut web 100 to the next station so as to realize the winding and welding of the web on the center tube at the next station;

[0082] In combination with Figures 1-3 , the traction mechanism 41 comprises:

[0083] a traction sliding table 42 slidingly mounted on the frame 1 through a sliding rail block (refer to Chinese Patent CN202222838629.6);

[0084] a driving assembly two 43 movably connecting the frame 1 and the traction sliding table 42 for driving the traction sliding table 42 to approach or move away from the discharge end of the previous station; the driving assembly two 43 is a transmission connection between a motor and a gear rack, which is a prior art, and the specific structure of the driving assembly two 43 can be referred to Chinese Patent CN202121454289.6, which will not be described here.

[0085] a traction clamping jaw 44 (a pneumatic clamping jaw or an electric clamping jaw) slidingly mounted on the traction sliding table 42 through a sliding rail block or a guide rod for clamping the end of the web 100;

[0086] a driving member nineteen 45 (a pneumatic cylinder or a linear motor) mounted on the traction sliding table 42, and the driving end of the driving member nineteen 45 is connected to the traction clamping jaw 44 for driving the traction clamping jaw 44 to slide on the traction sliding table 42;

[0087] The driving assembly two 43 drives the traction slide table 42 to move on the rack 1 after the traction slide table 42 approaches the discharge end of the previous work station and the traction clamping jaw 44 clamps the end of the web 100, so that the traction slide table 42 moves away from the previous work station, thereby realizing pulling out the web 100.

[0088] In combination Figure 1 and Figure 7 , the supporting mechanism 6 comprises:

[0089] The driving member four 61 (a gas cylinder or a linear motor) is installed on the rack 1;

[0090] The swing arm 62 is hingedly connected to the rear end of the rack 1, and the middle part of the swing arm 62 is hingedly connected to the driving end of the driving member four 61, and the driving member four 61 is used to drive the swing arm 62 to rotate on the rack 1;

[0091] The supporting plate 63 is slidingly arranged on the swing arm 62 and is used to support the lower end of the web 100;

[0092] The driving member five 64 (a gas cylinder or a linear motor) is installed on the swing arm 62, and the driving end of the driving member five 64 is movably connected to the supporting plate 63, and is used to drive the supporting plate 63 to move on the swing arm 62;

[0093] During the process of pulling the web 100 by the traction mechanism 41 to move away from the previous work station, the swing arm 62 rotates and the supporting plate 63 extends, thereby supporting the lower end of the pulled web 100, avoiding the middle part of the web 100 from being depressed due to the web 100 being pulled too long.

[0094] As Figure 7 , the supporting mechanism 6 further comprises:

[0095] The supporting table 65 is installed on the rack 1 and is located beside the swing arm 62, and is used to support the web 100 conveyed by the conveying mechanism, thereby ensuring the flatness of the web 100 and avoiding the middle part of the web 100 from being depressed downward.

[0096] In combination Figure 4 and Figure 6 , the clamping mechanism 5 comprises:

[0097] The support frame two 51 is installed on the rack 1;

[0098] The two clamping assemblies 52 are arranged on the support frame two 51 in an up-down manner, and a clamping area 58 is formed between the two clamping assemblies 52, and is used to clamp the web 100;

[0099] When the web 100 is pulled by the traction mechanism 41, the web 100 will first extend out of the clamping area 58 and be clamped by the traction mechanism 41;

[0100] The clamping assembly 52 comprises:

[0101] The driving member six 53 (a cylinder or a linear motor) is installed on the support frame two 51;

[0102] The clamping rollers 54 are rotatably connected to the driving ends of the driving member six 53;

[0103] The driving member seven 55 (a cylinder or a linear motor) is installed on the support frame two 51;

[0104] The rotation limiting blocks 56 are installed on the driving ends of the driving member seven 55, and the rotation limiting blocks 56 movably abut against the clamping rollers 54, for limiting the rotation of the clamping rollers 54;

[0105] When the driving member six 53 drives the corresponding clamping rollers 54 to move, the two clamping rollers 54 approach each other, so as to clamp the screen cloth 100 in the clamping area 58. When the cutting mechanism 3 cuts the screen cloth 100, the clamping mechanism 5 can avoid the screen cloth from being displaced under the action of the blade, so as to ensure that the length of the screen cloth 100 pulled is fixed, thereby ensuring that the cutting length of the screen cloth 100 meets the set value.

[0106] As shown in Figure 6 , the clamping assembly 52 further comprises:

[0107] The clamping plates 57 are installed on the driving ends of the driving member six 53, and the clamping plates 57 are located beside the clamping rollers 54;

[0108] When the two clamping rollers 54 approach each other, the two clamping plates 57 also approach each other and abut against the upper and lower ends of the screen cloth 100 respectively, so as to ensure that the screen cloth 100 will not be displaced.

[0109] In combination with Figure 1 , Figure 2 and Figure 5 , the conveying mechanism comprises:

[0110] The conveying assembly one 71 is installed on the traction mechanism 41;

[0111] The conveying assembly two 77 is installed on the rack 1 and located beside the clamping mechanism 5;

[0112] The conveying assembly one 71 and the conveying assembly two 77 respectively clamp the two ends of the screen cloth 100 and convey the screen cloth to the set position;

[0113] The conveying assembly one 71 comprises:

[0114] The support frame three 72 is slidably installed on the traction slide table 42 through the slide block three;

[0115] The driving assembly three 73 is installed on the traction slide table 42 and movably connected to the support frame three 72, and is used to drive the support frame three 72 to slide on the traction slide table 42, so that the support frame three 72 approaches or moves away from the discharge end of the previous work station. The driving assembly three 73 is a transmission connection between a motor and a gear and a rack, which is a prior art. The specific structure of the driving assembly three 73 can be referred to Chinese patent CN202121454289.6, and will not be repeated here;

[0116] The sliding frame one 74 is slidably installed on the support frame three 72;

[0117] The driving assembly four 75 is connected to the support frame three 72 and the sliding frame one 74, and is used to drive the sliding frame one 74 to slide on the support frame three 72, so that the sliding frame one 74 approaches or moves away from the next work station (the next work station is a welding device arranged on the rack 1, and is used to weld the mesh cloth to the center pipe). The driving assembly four 75 is a transmission connection between a motor and a gear and a rack, which is a prior art. The specific structure of the driving assembly four 75 can be referred to Chinese patent CN202121454289.6, and will not be repeated here;

[0118] The at least one clamping jaw assembly one 76 is installed on the sliding frame one 74, and is used to clamp the front end of the mesh cloth 100. The design scheme is provided with a plurality of clamping jaw assemblies one 76 arranged along the length direction of the sliding frame one 74;

[0119] The clamping jaw assembly one 76 comprises:

[0120] The driving piece eight 761 (a pneumatic cylinder or a linear motor or an electric push rod) is installed on the sliding frame one 74;

[0121] The conveying clamping jaw one 762 (i.e. a pneumatic clamping jaw) is installed on the driving end of the driving piece eight 761, and is used to clamp the mesh cloth 100.

[0122] In combination with Figure 4 and Figure 5 The conveying assembly two 77 comprises:

[0123] The support frame four 771 is installed on the rack 1 and located between the clamping mechanism 5 and the cutting mechanism 3;

[0124] The sliding frame two 772 is slidably arranged on the support frame four 771;

[0125] A driving assembly five 773 is connected with the support frame four 771 and the sliding frame two 772, and is used to drive the sliding frame two 772 to slide on the support frame four 771, so that the sliding frame two 772 is close to or away from the next work station (the next work station is to complete the winding of the mesh cloth and welding on the center pipe by manual or machine), the driving assembly five 773 is a transmission matching connection between a motor and a gear and a rack, which is prior art, and the specific structure of the driving assembly five 773 can be referred to Chinese patent CN202121454289.6, which will not be repeated here.

[0126] At least one conveying gripper two 774 (a pneumatic gripper) is installed on the sliding frame two 772 and is used to clamp the mesh cloth 100; the technical solution is provided with a plurality of conveying grippers two 774 distributed along the length direction of the sliding frame two 772, so as to ensure the stability of clamping the end of the mesh cloth 100 and avoid the curling of the mesh cloth 100.

[0127] In combination with Figures 4-6 The support frame two 51 is provided with a driving part nine 78 (a pneumatic cylinder or an electric push rod or a linear motor), the driving end of the driving part nine 78 is connected with a top block 781, the top block 781 is located on the side of the clamping assembly 52 and is used to movably abut against the lower end of the mesh cloth 100.

[0128] When the driving part nine 78 drives the top block 781 to move towards the mesh cloth 100, the top block 781 abuts against the lower end of the mesh cloth 100 and makes the rear end of the mesh cloth 100 elastically deform towards the direction away from the top block 781, so that the end of the mesh cloth 100 can be placed in the conveying gripper two 774, and the conveying gripper two 774 clamps the mesh cloth 100; when the traction mechanism 41 pulls the mesh cloth 100, the mesh cloth 100 moves below the conveying gripper two 774.

[0129] The sliding frame three 66 and the driving part eleven 67 (a pneumatic cylinder or a linear motor) are slidably arranged on the rack 1, the support mechanism 6 is arranged on the sliding frame three 66, the driving end of the driving part eleven 67 is connected with the sliding frame three 66 and is used to drive the sliding frame three 66 to slide on the rack 1, so as to adjust the height of the support mechanism 6, so as to ensure that the support mechanism 6 can stably support the lower end of the mesh cloth 100, and after adjusting the height of the support mechanism 6, the subsequent mesh cloth 100 is conveniently attached to one side of the center pipe of the next work station, so as to facilitate the welding of the mesh cloth 100 on the center pipe, since the center pipe has different sizes (different diameters), it is necessary to adjust the height of the mesh cloth on the support mechanism 6 to align with the side end of the center pipe.

[0130] The specific working process of the scheme is as follows:

[0131] The traction slide 42 moves towards the direction of the discharge end of the previous work station, and then the traction clamping jaw 44 clamps the front end of the web 100. The traction slide 42 then moves towards the direction away from the previous work station, thereby pulling the web 100 out. During the pulling of the web 100 by the traction slide 42, the supporting mechanism 6 is opened and supported at the lower end of the web 100;

[0132] When the web 100 is pulled to a set length by the traction slide 42, the clamping mechanism 5 clamps the rear half of the web 100. The previous work station cuts the web 100. The traction slide 42 moves again towards the direction away from the previous work station, so that the rear end of the web 100 moves to the clamping mechanism 5. Then the conveying assembly one 71 clamps the front end of the web 100, and the conveying assembly two 77 clamps the rear end of the web 100. The traction clamping jaw 44 is released and moves away from the web 100. The conveying assembly one 71 and the conveying assembly two 77 move the web 100 towards the next work station, thereby completing the feeding operation.

[0133] The basic principle and main features of the technical solution and the advantages of the technical solution are shown and described above. It should be understood by those skilled in the art that the technical solution is not limited by the above examples. The above examples and descriptions in the specification are only to illustrate the principle of the technical solution. Without departing from the spirit and scope of the technical solution, various changes and improvements can be made to the technical solution. These changes and improvements all fall within the scope of the claimed technical solution. The scope of protection of the technical solution is defined by the appended claims and their equivalents.

[0134] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of the specification are only used to illustrate the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the conditions under which the technical solution can be implemented. Therefore, any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that the technical solution can produce, should still fall within the scope of the technical content disclosed by the technical solution. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the specification are only for easy understanding and clarity, and are not used to limit the scope in which the technical solution can be implemented. The change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the scope in which the technical solution can be implemented.

[0135] It should also be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element through a middle element.

[0136] In addition, the descriptions in the present application involving "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist, nor is it within the protection scope required by the present application.

Claims

1. A feeding device of a web welding machine for moving a web to a set position, characterized in that, It includes: A frame (1); A traction mechanism (41) slidingly arranged on the frame (1) for clamping the mesh (100) conveyed from the previous work station; A clamping mechanism (5) mounted on the frame (1) and located beside the traction mechanism (41) for clamping the mesh (100); A plurality of supporting mechanisms (6) mounted on the frame (1) and movably arranged between the traction mechanism (41) and the clamping mechanism (5) for supporting the lower end of the mesh (100); A conveying mechanism mounted on the frame (1) for conveying the mesh (100) to the next work station; The traction mechanism (41) includes: A traction sliding table (42) slidingly mounted on the frame (1); A driving assembly two (43) movably connecting the frame (1) and the traction sliding table (42) for driving the traction sliding table (42) to move towards or away from the discharge end of the previous work station; A traction clamping jaw (44) slidingly mounted on the traction sliding table (42) for clamping the end of the mesh (100); When the traction clamping jaw (44) clamps the end of the mesh (100), the driving assembly two (43) drives the traction sliding table (42) to move on the frame (1), so that the traction sliding table (42) moves away from the previous work station, thereby realizing pulling the mesh (100).

2. The feeding device of the mesh welding machine according to claim 1, wherein: The traction mechanism (41) further includes: A driving member nineteen (45) mounted on the traction sliding table (42), and the driving end of the driving member nineteen (45) is connected with the traction clamping jaw (44) for driving the traction clamping jaw (44) to slide on the traction sliding table (42).

3. The feeding device of the mesh welding machine according to claim 1, wherein: The supporting mechanism (6) includes: A driving member four (61) mounted on the frame (1); An oscillating arm (62) having its rear end hinged to the frame (1) and its middle part hinged to the driving end of the driving member four (61); A supporting plate (63) slidingly arranged on the oscillating arm (62) for supporting the lower end of the mesh (100); A driving member five (64) mounted on the oscillating arm (62), and the driving end of the driving member five (64) is movably connected with the supporting plate (63) for driving the supporting plate (63) to move on the oscillating arm (62); When the traction mechanism (41) pulls the mesh (100) to move away from the previous work station, the oscillating arm (62) rotates and the supporting plate (63) extends, thereby supporting the lower end of the pulled mesh (100).

4. The feeding device of the mesh welding machine according to claim 3, wherein: The supporting mechanism (6) further includes: A supporting table (65) mounted on the frame (1) and located beside the oscillating arm (62) for supporting the mesh (100) conveyed by the conveying mechanism.

5. The feeding device of the web welding machine according to claim 1, characterized in that: the clamping mechanism (5) comprises: a second support frame (51) mounted on the frame (1); two clamping assemblies (52) distributed on the second support frame (51) in an up-down manner, and a clamping area (58) is formed between the two clamping assemblies (52) for clamping the web (100); the clamping assembly (52) comprises: a sixth driving member (53) mounted on the second support frame (51); a clamping roller (54) rotatably connected to the driving end of the sixth driving member (53); a seventh driving member (55) mounted on the second support frame (51); a rotation limiting block (56) mounted on the driving end of the seventh driving member (55), and the rotation limiting block (56) is in contact with the clamping roller (54) for limiting the rotation of the clamping roller (54); when the sixth driving member (53) drives the corresponding clamping roller (54) to move, the two clamping rollers (54) move close to each other, thereby clamping the web (100) in the clamping area (58), and cooperating with the cutting mechanism on the frame (1) to cut the web (100).

6. The feeding device of the web welding machine according to claim 5, characterized in that: the clamping assembly (52) further comprises: a clamping plate (57) mounted on the driving end of the sixth driving member (53), and the clamping plate (57) is located beside the clamping roller (54); when the two clamping rollers (54) move close to each other, the two clamping plates (57) are in contact with the upper and lower ends of the web (100), respectively.

7. The feeding device of the web welding machine according to claim 1 or 2 or 5, characterized in that: the conveying mechanism comprises: a first conveying assembly (71) mounted on the traction mechanism (41); a second conveying assembly (77) mounted on the frame (1) and located beside the clamping mechanism (5); the first conveying assembly (71) comprises: a third support frame (72) slidably mounted on the traction slide (42); a third driving assembly (73) mounted on the traction slide (42) and movably connected to the third support frame (72) for driving the third support frame (72) to slide on the traction slide (42) so that the third support frame (72) moves close to or away from the previous work station; a first sliding frame (74) slidably mounted on the third support frame (72); a fourth driving assembly (75) connected to the third support frame (72) and the first sliding frame (74) for driving the first sliding frame (74) to slide on the third support frame (72) so that the first sliding frame (74) moves close to or away from the next work station; at least one first clamping jaw assembly (76) mounted on the first sliding frame (74) for clamping the front end of the web (100); the first clamping jaw assembly (76) comprises: an eighth driving member (761) mounted on the first sliding frame (74). ​ A conveying gripper one (762) is installed on the driving end of the driving member eight (761) for clamping the screen cloth (100).

8. The feeding device of the web welding machine according to claim 7, characterized in that: The conveying assembly two (77) comprises: A support frame four (771) is installed on the frame (1); A sliding frame two (772) is slidingly arranged on the support frame four (771); A driving assembly five (773) is connected between the support frame four (771) and the sliding frame two (772) for driving the sliding frame two (772) to slide on the support frame four (771) so that the sliding frame two (772) approaches or moves away from the next station; At least one conveying gripper two (774) is installed on the sliding frame two (772) for clamping the screen cloth (100).

9. The feeding device of the web welding machine according to claim 7, characterized in that: The support frame two (51) of the clamping mechanism (5) is provided with a driving member nine (78), the driving end of the driving member nine (78) is connected with a top block (781), and the top block (781) is located beside the clamping assembly (52) of the clamping mechanism (5); When the driving member nine (78) drives the top block (781) to move towards the screen cloth (100), the top block (781) abuts against the lower end of the screen cloth (100) and causes the rear end of the screen cloth (100) to elastically deform in a direction away from the top block (781), so that the end of the screen cloth (100) is placed in the conveying gripper two (774) of the conveying assembly two (77).

10. The feeding device of the web welding machine according to any one of claims 1-3, characterized in that: The frame (1) is slidingly provided with a sliding frame three (66) and a driving member eleven (67), the support mechanism (6) is arranged on the sliding frame three (66), and the driving end of the driving member eleven (67) is connected with the sliding frame three (66) for driving the sliding frame three (66) to slide on the frame (1) to adjust the height of the support mechanism (6).

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