Cloth cutting device for warp knitting machine

Abstract

The utility model provides a cloth cutting device for a warp knitting machine. The cloth cutting device comprises two fixing frames, a supporting arm, a plurality of electric cutting assemblies and a power supply component. The supporting arm is arranged between the two fixing frames, and a longitudinal adjusting structure and a front-back adjusting structure are arranged between the two ends of the supporting arm and the two fixing frames respectively. The multiple electric cutting assemblies are arranged on the supporting arm side by side in the left-right direction, and locking structures are arranged on the electric cutting assemblies. The power supply component is arranged on the lower side of the supporting arm and connected with the supporting arm, and all the electric cutting assemblies are electrically connected. When the position of the electric cutting assembly needs to be adjusted, the electric cutting assembly can be moved relative to the supporting arm and fixed through the locking structure, and the supporting arm is moved relative to the supporting frame and fixed through the longitudinal adjusting structure and the front-back adjusting structure. According to the cloth cutting device for the warp knitting machine, the spatial position of the electric cutting assembly can be rapidly adjusted, and the cloth cutting effect and the product quality of cut cloth are guaranteed.

Description

Technical Field

[0001] This application belongs to the technical field of textile equipment, and particularly relates to a fabric cutting device for a warp knitting machine. Background Art

[0002] A warp knitting machine, also known as a circular knitting machine, is an important piece of equipment in textile engineering and is specifically used for producing knitted fabrics and textiles. In the prior art, the core working principle of a warp knitting machine is to form loops on the working needles of the machine through one or several groups of parallel yarns, thereby knitting various types of knitted fabrics (hereinafter referred to as "fabrics").

[0003] After the fabric is processed, it is usually necessary to use a cutting device to divide it into multiple sections and wind the multiple sections of fabric around different wire rollers respectively; in the prior art, the cutting of the fabric is usually achieved by using an electric heating wire. Specifically: the electric heating wire is fixed to the ground through a support, and is arranged in the output path of the fabric and facing the output area of the fabric; as the fabric is pulled outwards, the electric heating wire fully contacts the fabric, so that the fabric is cut into two parts, and the cutting surface is quickly fused by heat to avoid the appearance of frayed edges.

[0004] The inventor found that according to the differences in product specifications and user requirements, the lengths of the fabrics to be cut are also different; however, it is inconvenient to adjust the position of the support relative to the ground, and it is interfered by the relevant wires of the electric heating wire, which is likely to have an adverse impact on the product quality. Summary of the Utility Model

[0005] The embodiments of this application provide a fabric cutting device for a warp knitting machine, aiming to achieve rapid adjustment of the spatial position of the electric heating wire and ensure the fabric cutting effect and the product quality of the cut fabric.

[0006] To achieve the above object, the technical solution adopted in this application is:

[0007] Provide a fabric cutting device for a warp knitting machine, including:

[0008] Two fixing frames, which are used to be installed side by side on the warp knitting machine in the horizontal direction and are located on both sides of the fabric output area; define the arrangement direction of the two fixing frames as the left-right direction and the fabric output direction as the direction from back to front;

[0009] A support arm, which is arranged between the two fixing frames, its axis is parallel to the left-right direction, and each end of it has a longitudinal adjustment structure and a front-back adjustment structure with the fixing frame on the same side;

[0010] A plurality of electric cutting components, which are arranged side by side in the left-right direction on the support arm, are all slidably connected to the support arm in the left-right direction, and a locking structure adapted to be connected to the support arm is provided on each electric cutting component; and

[0011] A power supply component is arranged on the lower side of the support arm, fixedly connected to the support arm, and electrically connected to each of the electric cutting components;

[0012] Wherein, the longitudinal adjustment structure can connect the support arm and the fixed frame to limit the movement of the support arm in the up and down direction;

[0013] The front-back adjustment structure can connect the support arm and the fixed frame to limit the movement of the support arm in the front-back direction;

[0014] The locking structure can connect the corresponding electric cutting component and the support arm to limit the movement of the electric cutting component in the left-right direction.

[0015] In a possible implementation manner, the longitudinal adjustment structure includes:

[0016] A plurality of guide grooves are all formed on the front side surface of the fixed frame, and are arranged at intervals in the up and down direction; each guide groove penetrates in the left-right direction, and a clamping member is slidably connected in the guide groove in the front-back direction; and

[0017] A docking rod is fixedly connected to the end of the support arm and extends axially outward along the support arm;

[0018] Wherein, the clamping member has a limiting hole that penetrates in the left-right direction and is adapted for the extended end of the docking rod to be inserted; and, the clamping member is made of an elastic material, and its front side surface has a through hole that communicates with the limiting hole and penetrates in the left-right direction.

[0019] In a possible implementation manner, the inner bottom surface of each guide groove has a groove extending in the front-back direction, and the clamping member has a convex portion that is slidably fitted in the groove.

[0020] In a possible implementation manner, there are multiple groups of the front-back adjustment structures, and the multiple groups of the front-back adjustment structures correspond to the multiple guide grooves one by one; wherein, each group of the front-back adjustment structures includes:

[0021] A fixing nut is fixedly connected to the convex portion, and its axis is parallel to the front-back direction; and

[0022] An adjusting screw rod is arranged in the groove, its axis is parallel to the front-back direction, and it is rotatably connected to the fixed frame in the front-back direction;

[0023] Wherein, the adjusting screw rod is threadedly connected to the fixing nut; when the adjusting screw rod rotates, the fixing nut drives the convex portion to move synchronously in the front-back direction.

[0024] In a possible implementation, the protruding portion has a through hole that penetrates in the front-back direction and is adapted for the adjusting screw to pass through, and a sinking groove that is coaxially arranged with the through hole and is adapted for the fixing nut to be embedded is formed on one side of the protruding portion facing the front-back direction.

[0025] In a possible implementation, the electric cutting assembly includes:

[0026] A positioning seat that is slidably connected to the support arm in the left-right direction, and the locking structure is arranged between the positioning seat and the support arm; and

[0027] A resistance wire that is arranged on the front side of the positioning seat, is connected to the positioning seat through a towards-fixed structure, and is electrically connected to the power supply component through a circuit.

[0028] In a possible implementation, the locking structure includes:

[0029] A positioning nut that is fixedly connected to the positioning seat and has an axial direction parallel to the up-down direction; and

[0030] A locking bolt that is threadedly connected to the positioning nut, and the end of the locking bolt is used to abut against the support arm to limit the movement of the positioning seat relative to the support arm in the left-right direction.

[0031] In a possible implementation, a strip-shaped pad extending in the left-right direction is fixedly connected to the support arm, and the strip-shaped pad is used to abut against the locking bolt and deform.

[0032] In a possible implementation, the towards-fixed structure includes:

[0033] A portal frame that is fixedly arranged on the front end face of the positioning seat and has an open end facing forward; the portal frame has a positioning hole that penetrates in the left-right direction, and a support plate that is arranged behind the positioning hole and is inclined forward from top to bottom;

[0034] A docking seat that is embedded in the portal frame, the front side of the docking seat is connected to the resistance wire, and the rear side of the docking seat is in contact with the support plate; when the support plate is connected to the resistance wire, the length direction of the resistance wire is parallel to the inclined surface of the support plate; the docking seat has a plurality of alignment holes that penetrate in the left-right direction and are arranged at intervals along the length direction of the resistance wire, and each alignment hole is adapted to communicate with the positioning hole; and

[0035] A connecting bolt that is adapted to be inserted into the mutually communicating positioning hole and alignment hole, and a docking nut that is threadedly connected to the end of the connecting bolt and is adapted to abut against the outer wall of the portal frame.

[0036] In a possible implementation, a counterweight plate is fixedly connected to the lower side surface of the support arm, and the power supply member is connected to the counterweight plate through a plurality of connecting rods.

[0037] In the embodiment of the present application, the preliminary fixation of the device is realized through the installation of two fixing frames; on this basis, the support arm is arranged between the two fixing frames. First, the support arm and the fixing frame are connected through a longitudinal adjustment structure to limit the longitudinal position of the support arm, and then the support arm and the fixing frame are connected through a front-back adjustment structure to limit the position of the support arm in the front-back direction. Finally, the electric cutting assembly is moved left and right, and the electric cutting assembly and the support arm are connected by a locking structure to achieve the technical purpose of limiting the spatial position of the electric cutting assembly.

[0038] During the process of adjusting the position of the electric cutting assembly, since the power supply member is fixedly connected to the support arm, the power supply member can move together with the electric cutting assembly to avoid the influence of the power supply member and related lines on the cloth cutting process.

[0039] Compared with the prior art, the fabric cutting device for a warp knitting machine provided in this embodiment can quickly adjust the spatial position of the electric cutting assembly, ensuring the fabric cutting effect and the product quality of the cut fabric. Description of the Drawings

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0041] Figure 1 It is a three-dimensional structural schematic diagram of the fabric cutting device for a warp knitting machine provided in the embodiment of the present application;

[0042] Figure 2 For Figure 1 The partial enlarged schematic diagram at the circular A in

[0043] Figure 3 It is an exploded structural schematic diagram of the fixing frame and the front-back adjustment structure adopted in the embodiment of the present application;

[0044] Figure 4 It is a sectional structural schematic diagram of the clamping member adopted in the embodiment of the present application from an exploded perspective;

[0045] Figure 5 It is a sectional structural schematic diagram of the electric cutting assembly and the power supply member in a combined state adopted in the embodiment of the present application;

[0046] Figure 6Exploded structural schematic diagram of the electric cutting assembly adopted in the embodiments of the present application;

[0047] Description of the reference numerals: 1, fixing frame; 2, support arm; 21, strip-shaped pad; 22, counterweight plate; 3, electric cutting assembly; 31, positioning seat; 32, resistance wire; 4, power supply member; 5, longitudinal adjustment structure; 51, guide groove; 511, groove; 52, docking rod; 6, front-back adjustment structure; 61, fixing nut; 62, adjusting screw; 7, locking structure; 71, alignment nut; 72, locking bolt; 8, clamping member; 81, limiting hole; 82, through hole; 83, convex portion; 831, through hole; 832, sinking groove; 9, orientation fixing structure; 91, gantry frame; 911, positioning hole; 912, support plate; 92, docking seat; 921, alignment hole; 93, connecting bolt; 931, docking nut; 10, connecting rod. Detailed implementation manners

[0048] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0049] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0050] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0051] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0052] Please refer to Figures 1 to 6, the fabric cutting device for warp knitting machines provided by this application will now be described. The fabric cutting device for warp knitting machines proposed in this application includes two fixed frames 1, support arms 2, a plurality of electric cutting components 3, and a power supply member 4.

[0053] The two fixed frames 1 are used to be installed side by side on the warp knitting machine in the horizontal direction and are located on both sides of the fabric output area; in this embodiment, for the convenience of description, the arrangement direction of the two fixed frames 1 is defined as the left - right direction, and the fabric output direction is the direction from back to front.

[0054] The support arm 2 is arranged between the two fixed frames 1. Its axis is parallel to the left - right direction, and each end of it has a longitudinal adjustment structure 5 and a front - rear adjustment structure 6 with the fixed frame 1 on the same side; among them, the longitudinal adjustment structure 5 can connect the support arm 2 and the fixed frame 1 to limit the movement of the support arm 2 in the up - down direction; the front - rear adjustment structure 6 can connect the support arm 2 and the fixed frame 1 to limit the movement of the support arm 2 in the front - rear direction.

[0055] A plurality of electric cutting components 3 are arranged side by side in the left - right direction on the support arm 2. They are all slidably connected to the support arm 2 in the left - right direction, and each electric cutting component 3 is provided with a locking structure 7 adapted to be connected to the support arm 2; this locking structure 7 can connect the corresponding electric cutting component 3 and the support arm 2 to limit the movement of the electric cutting component 3 in the left - right direction.

[0056] The power supply member 4 is arranged on the lower side of the support arm 2. It is fixedly connected to the support arm 2 and is electrically connected to each electric cutting component 3. In this embodiment, the power supply member 4 has a plurality of electrical connection positions arranged at intervals in the left - right direction to ensure the nearest connection method that can be achieved by the electric cutting component 3 through the electronic circuit during the left - right adjustment process.

[0057] In the embodiment of this application, through the installation of the two fixed frames 1, the preliminary fixation of this device is realized; on this basis, the support arm 2 is arranged between the two fixed frames 1. First, the support arm 2 and the fixed frame 1 are connected through the longitudinal adjustment structure 5 to limit the longitudinal position of the support arm 2, then the support arm 2 and the fixed frame 1 are connected through the front - rear adjustment structure 6 to limit the position of the support arm 2 in the front - rear direction, and finally, by moving the electric cutting component 3 left and right and using the locking structure 7 to connect the electric cutting component 3 and the support arm 2, the technical purpose of limiting the spatial position of the electric cutting component 3 is achieved.

[0058] During the process of adjusting the position of the electric cutting component 3, since the power supply member 4 and the support arm 2 are fixedly connected, the power supply member 4 can move together with the electric cutting component 3 to avoid the influence of the power supply member 4 and related circuits on the fabric cutting process.

[0059] Compared with the prior art, the fabric cutting device for warp knitting machines provided in this embodiment can quickly adjust the spatial position of the electric cutting assembly 3, ensuring the fabric cutting effect and the product quality of the cut fabric.

[0060] In some embodiments, as Figure 1 shown, the longitudinal adjustment structure 5 includes a plurality of guide grooves 51 and docking rods 52.

[0061] The plurality of guide grooves 51 are all formed on the front side of the fixed frame 1, and are arranged at intervals in the up and down direction; each guide groove 51 penetrates in the left and right direction, and a clamping member 8 is slidably connected in each guide groove 51 in the front and back direction.

[0062] The docking rod 52 is fixedly connected to the end of the support arm 2 and extends axially outward along the support arm 2.

[0063] Among them, the clamping member 8 has a limiting hole 81 that penetrates in the left and right direction and is adapted for the extended end of the docking rod 52 to be inserted; moreover, the clamping member 8 is made of an elastic material, and its front side has a through hole 82 that communicates with the limiting hole 81 and penetrates in the left and right direction, and the aperture of this through hole 82 is smaller than the aperture of the limiting hole 81.

[0064] During actual use, the extended end of the docking rod 52 is snapped into the limiting hole 81 through the through hole 82, and the clamping member 8 and the docking rod 52 can be limited in the front and back direction.

[0065] In some embodiments, as Figure 3 and Figure 4 shown, the inner bottom surface of each guide groove 51 has a groove 511 extending in the front and back direction, and the clamping member 8 has a convex portion 83 slidably fitted in the groove 511.

[0066] In some embodiments, as Figure 3 shown, there are multiple sets of front and back adjustment structures 6, and the multiple sets of front and back adjustment structures 6 correspond to the multiple guide grooves 51 one by one; among them, each set of front and back adjustment structures 6 includes a fixed nut 61 and an adjustment screw 62.

[0067] The fixed nut 61 is fixedly connected to the convex portion 83, and its axis is parallel to the front and back direction.

[0068] The adjustment screw 62 is arranged in the groove 511, its axis is parallel to the front and back direction, and it is rotatably connected to the fixed frame 1 in the front and back direction.

[0069] Among them, the adjustment screw 62 is threadedly connected to the fixed nut 61; by adopting this technical solution, when the adjustment screw 62 rotates, the fixed nut 61 drives the convex portion 83 to move synchronously in the front and back direction.

[0070] In some embodiments, asFigure 4 As shown, the convex portion 83 has a through hole 831 that penetrates in the front-rear direction and is adapted for the adjusting screw 62 to pass through, and a sunken groove 832 that is coaxially arranged with the through hole 831 and is adapted for the fixing nut 61 to be embedded therein to achieve a concealed installation is provided on one side thereof facing the front-rear direction.

[0071] In some embodiments, such as Figure 5 and Figure 6 As shown, the electric cutting assembly 3 includes a positioning seat 31 and a resistance wire 32.

[0072] The positioning seat 31 is slidably connected to the support arm 2 in the left-right direction, and the locking structure 7 is provided between the positioning seat 31 and the support arm 2.

[0073] The resistance wire 32 is arranged on the front side of the positioning seat 31, is connected to the positioning seat 31 through a structure facing the fixing structure 9, and is electrically connected to the power supply member 4 through a circuit.

[0074] In some embodiments, such as Figure 5 and Figure 6 As shown, the locking structure 7 includes an alignment nut 71 and a locking bolt 72.

[0075] The alignment nut 71 is fixedly connected to the positioning seat 31, and its axis is parallel to the up-down direction.

[0076] The locking bolt 72 is threadedly connected to the alignment nut 71, and its end is used to abut against the support arm 2 to limit the movement of the positioning seat 31 relative to the support arm 2 in the left-right direction.

[0077] In some embodiments, such as Figure 5 As shown, a strip-shaped pad 21 extending in the left-right direction is fixedly connected to the support arm 2, and the strip-shaped pad 21 is used to abut against the locking bolt 72 and deform.

[0078] In some embodiments, such as Figure 5 and Figure 6 As shown, the structure facing the fixing structure 9 includes a portal frame 91, a docking seat 92, and a connecting bolt 93.

[0079] The portal frame 91 is fixedly arranged on the front end face of the positioning seat 31, and its opening faces forward; in this embodiment, the portal frame 91 has a positioning hole 911 that penetrates in the left-right direction, and a support plate 912 that is arranged behind the positioning hole 911 and inclines forward from top to bottom.

[0080] The docking seat 92 is fitted in the portal frame 91. Its front side is connected to the resistance wire 32, and its rear side is in contact with the support plate 912. When the support plate 912 is connected to the resistance wire 32, the length direction of the resistance wire 32 is parallel to the inclined surface of the support plate 912. The docking seat 92 has a plurality of alignment holes 921 that penetrate in the left-right direction and are arranged at intervals along the length direction of the resistance wire 32, and each alignment hole 921 is adapted to communicate with the positioning hole 911.

[0081] The connecting bolt 93 is adapted to be inserted into the mutually communicating positioning hole 911 and alignment hole 921, and a docking nut 931 adapted to abut against the outer wall of the portal frame 91 is threadedly connected to its end.

[0082] In some embodiments, as Figure 5 shown, a counterweight plate 22 is fixedly connected to the lower side of the support arm 2, and the power supply member 4 is connected to the counterweight plate 22 through a plurality of connecting rods 10.

[0083] The above content is only the preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fabric cutting device for warp knitting machines, characterized in that, Comprising: Two fixing brackets, which are used to be installed side by side on the warp knitting machine in the horizontal direction and are located on both sides of the fabric output area; the arrangement direction of the two fixing brackets is defined as the left - right direction, and the fabric output direction is from back to front; A support arm, which is arranged between the two fixing brackets, its axis is parallel to the left - right direction, and there are longitudinal adjustment structures and front - back adjustment structures between each end of it and the fixing bracket on the same side; A plurality of electric cutting assemblies, which are arranged side by side in the left - right direction on the support arm, are all slidably connected to the support arm in the left - right direction, and a locking structure adapted to be connected to the support arm is provided on each electric cutting assembly; and A power supply member, which is arranged on the lower side of the support arm, is fixedly connected to the support arm, and is electrically connected to each electric cutting assembly; Wherein, the longitudinal adjustment structure can connect the support arm and the fixing bracket to limit the movement of the support arm in the up - down direction; The front - back adjustment structure can connect the support arm and the fixing bracket to limit the movement of the support arm in the front - back direction; The locking structure can connect the corresponding electric cutting assembly and the support arm to limit the movement of the electric cutting assembly in the left - right direction.

2. The fabric cutting device for warp knitting machines according to claim 1, characterized in that, The longitudinal adjustment structure includes: A plurality of guide grooves, which are all opened on the front side of the fixing bracket and are arranged at intervals in the up - down direction; each guide groove runs through in the left - right direction, and a clamping member is slidably connected in the guide groove in the front - back direction; and A docking rod, which is fixedly connected to the end of the support arm and extends axially outward along the support arm; Wherein, the clamping member has a limiting hole that runs through in the left - right direction and is adapted for the extended end of the docking rod to insert; and, the clamping member is made of elastic material, and its front side has a through - hole that communicates with the limiting hole and runs through in the left - right direction.

3. The fabric cutting device for warp knitting machines according to claim 2, characterized in that, The inner bottom surface of each guide groove has a groove extending in the front - back direction, and the clamping member has a convex portion that is slidably fitted in the groove.

4. The fabric cutting device for warp knitting machines according to claim 3, characterized in that, There are multiple groups of the front - back adjustment structures, and the multiple groups of front - back adjustment structures correspond to the multiple guide grooves one by one; wherein, each group of the front - back adjustment structures includes: A fixing nut, which is fixedly connected to the convex portion and its axis is parallel to the front - back direction; and An adjusting screw, which is arranged in the groove, its axis is parallel to the front - back direction, and it is rotatably connected to the fixing bracket in the front - back direction; Wherein, the adjusting screw is threadedly connected to the fixing nut; when the adjusting screw rotates, the fixing nut drives the convex portion to move synchronously in the front - back direction.

5. The fabric cutting device for warp knitting machines according to claim 4, characterized in that, The convex portion has a through - hole that runs through in the front - back direction and is adapted for the adjusting screw to pass through, and on one side facing the front - back direction, there is a sinking groove that is coaxially arranged with the through - hole and is adapted for the fixing nut to be embedded.

6. The fabric cutting device for warp knitting machines according to claim 1, characterized in that, The electric cutting assembly includes: A positioning seat, which is slidably connected to the support arm in the left - right direction, and the locking structure is arranged between the positioning seat and the support arm; and The resistance wire is arranged on the front side of the positioning seat, and is connected to the positioning seat through an orientation fixing structure, and is electrically connected to the power supply component through a circuit.

7. The fabric cutting device for warp knitting machines according to claim 6, characterized in that, The locking structure includes: a positioning nut fixedly connected to the positioning seat, and its axial direction is parallel to the up-down direction; and a locking bolt threadedly connected to the positioning nut, and its end is used to abut against the support arm to limit the movement of the positioning seat relative to the support arm in the left-right direction.

8. The fabric cutting device for warp knitting machines according to claim 7, characterized in that, A strip-shaped pad extending in the left-right direction is fixedly connected to the support arm, and the strip-shaped pad is used to abut against the locking bolt and deform.

9. The fabric cutting device for warp knitting machines according to claim 6, characterized in that, The orientation fixing structure includes: a portal frame fixedly arranged on the front end face of the positioning seat, and its opening faces forward; the portal frame has a positioning hole penetrating in the left-right direction, and a support plate arranged obliquely forward from top to bottom at the rear side of the positioning hole; a docking seat embedded in the portal frame, its front side is connected to the resistance wire, and its rear side is in contact with the support plate; when the support plate is connected to the resistance wire, the length direction of the resistance wire is parallel to the inclined surface of the support plate; the docking seat has a plurality of positioning holes penetrating in the left-right direction and arranged at intervals along the length direction of the resistance wire, and each positioning hole is adapted to communicate with the positioning hole; and a connecting bolt adapted to be inserted into the mutually communicating positioning hole and the positioning hole, and a docking nut adapted to abut against the outer wall of the portal frame is threadedly connected to its end.

10. The fabric cutting device for warp knitting machines according to claim 1, characterized in that, A counterweight plate is fixedly connected to the lower side of the support arm, and the power supply component is connected to the counterweight plate through a plurality of connecting rods.

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