Sectional cable tray staggered lamination welding equipment

Abstract

The application discloses a sectional cable bridge staggered lamination welding device, and relates to the technical field of cable bridge welding processing. On the one hand, the absolute vertical state of the warp yarn feeding process and the weft yarn is formed by the preliminary correction feeding of the continuous warp yarn feeding process and the synchronous application of the secondary correction feeding, and on the other hand, the accurate landing of the weft yarn after the weft yarn feeding process is realized by the intermittent step feeding process and the electromagnetic adsorption stage, and the interference of the warp yarn and the weft yarn bending degree caused by the high-temperature welding gap is avoided through the reciprocating welding approach and away operation. The combination of the two can realize the stable and accurate landing of the weft yarn relative to the warp yarn during the lamination welding process of the net format cable bridge, and avoid the problem of the low yield of finished products caused by the deviation during the lamination welding.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable bridge welding processing, in particular to a sectional cable bridge staggered layer welding device. BACKGROUND

[0002] The cable bridge is divided into groove type, tray type and ladder type, net type and other structures, which are composed of support, supporting arm and installation accessories, etc. The bridge in the building can be independently erected or laid on various building and pipe gallery supports. The net type bridge is mainly composed of keel, end decoration, cross decoration and cover plate, etc. The keel is usually welded by stacking and welding method, and then the assembly of end decoration, cross decoration and cover plate is carried out.

[0003] In the prior art, the warp and weft of the cable net type bridge are staggered and welded by layering. The warp is continuously fed by manual threading, and the weft is initially formed into a grid form by intermittent feeding of related equipment, and then the welding of the connection points is completed one by one. However, during the continuous feeding of the warp, the weft is difficult to form stable landing, that is, the weft will roll forward and backward or even be skewed after landing, which will cause welding deviation and reduce the yield of the finished product. Therefore, a solution is proposed. SUMMARY

[0004] The purpose of the present application is to provide a sectional cable bridge staggered layer welding device to solve the problem of welding deviation caused by the difficulty of the weft to form stable landing during the continuous feeding of the warp when the warp and weft of the cable net type bridge are stacked and welded.

[0005] The purpose of the present application can be achieved by the following technical solution: a sectional cable bridge staggered layer welding device, comprising a base plate, a feeding plate for continuous feeding of warp is installed on one side of the upper end of the base plate, a feeding box for intermittent feeding of weft is suspended above the side of the base plate close to the feeding plate;

[0006] A longitudinal feeding cylinder is embedded on the feeding plate, a limiting hoop is inserted into the longitudinal feeding cylinder, a plurality of self-driven rollers for supporting the warp are horizontally and movably arranged on the inside of the upper end of the base plate;

[0007] Intermittent stepping rod seats are fixedly installed at both ends of the inside of the feeding box, lifting rod seats are installed at intervals in the middle of the feeding box, and a horizontal drop hole is formed at one end of the feeding box, a discharging straight slot is installed at the lower end of the feeding box corresponding to the horizontal drop hole;

[0008] A welding seat aligned with the intersection of the warp and weft is rotatably installed at the front side of the lower end of the discharging straight slot, a welding rod is installed at the lower end of the welding seat, and an electromagnetic adsorption rod is installed at the lower end of the base plate corresponding to the welding rod.

[0009] Further being provided that: a cylinder is installed at the middle position of the bottom of the feeding box, a fixed plate is transversely installed at the output end of the cylinder, and the upper end of the fixed plate is connected with the bottom of a plurality of lifting rod seats.

[0010] Further being provided that: guide plates are symmetrically installed at both sides of the bottom of the feeding box, guide holes are formed at both sides of the guide plates, guide rods matched with the guide holes are installed at both ends of the fixed plate, and the lifting rod seats are reciprocally moved by the running track of the guide rods in the guide holes.

[0011] Further being provided that: rod grooves are formed in the intermittent stepping rod seat and the lifting rod seat, a blanking slope is installed at the side of the feeding box away from the transverse drop hole, and the bottom end of the blanking slope is aligned with one side of the rod groove at the bottom.

[0012] Further being provided that: a machine box is installed at one side of the base plate, an electric push rod is arranged in the machine box, and positioning frames are installed at both sides of the base plate corresponding to the overlap welding forming area.

[0013] Further being provided that: sliding rods are installed at both ends of the self-driven roller, the outer ends of the sliding rods are connected with the output end of the electric push rod by penetrating the positioning frames, and the inner ends of the sliding rods are movably connected with sleeves fixedly connected with the other positioning frames.

[0014] Further being provided that: drive motors are installed at both sides of the lower end of the blanking straight groove, a rotating rod is connected with the output end of the drive motor, and the welding seats are separately vertically aligned with the wires by being sleeved outside the rotating rod.

[0015] Further being provided that: a cutting table is installed at one side of the upper end of the base plate, a connecting plate is welded with the cutting table and installed at the rear side of the feeding box, and a cutting tool bit for segmentally cutting the grid structure is installed at the bottom of the cutting table.

[0016] The present application has the following advantages:

[0017] 1. The present application is aimed at the welding deviation problem caused by the difficulty of the weft wire to form stable landing during the continuous feeding process of the warp wire, and the present application forms a grid structure by the way of synchronous longitudinal feeding of the warp wire combined with the intermittent merging of the weft wire, and ensures the stable landing of the merging stage of the weft wire and the warp wire, so as to achieve the purpose of accurate overlap welding.

[0018] 2. During the overlapping welding process, while completing the initial correction feed of the warp wire, a secondary correction feed can also be performed by the self-driven roller during the subsequent continuous warp wire feeding. Specifically, after the warp wire passes through the limiting ring in the longitudinal feed cylinder and obtains the initial correction feed, it continues to feed. The secondary correction feed can be completed under the support of the movable self-driven roller. That is, during the continuous feeding of the warp wire, if the warp wire deviates at the unwelded intersection, a correction action is immediately performed. Thus, the initial correction feed of the warp wire completes a double smooth correction feed action, ensuring the accuracy of the continuous feeding process of the warp wire and avoiding deviations that occur when stacking with the weft wire.

[0019] 3. During the overlapping welding operation, the welding rod will generate high temperature. In order to avoid the influence of the high temperature of the welding rod, during the welding gap, that is, the feeding stage of the warp wire, the welding rod is made to follow the welding seat away from the intersection of the two, so as to avoid the high temperature of the welding gap affecting the curvature of the warp and weft wires. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a side-view perspective view of the three-dimensional structure of the present invention;

[0023] Figure 3 This is a side sectional view of the present invention;

[0024] Figure 4 In this invention Figure 3 Enlarged view of point A in the image;

[0025] Figure 5 This is a schematic diagram illustrating the feeding of warp and weft yarns according to the present invention;

[0026] Figure 6 This is a schematic diagram of the welding state at the intersection of the warp and weft threads according to the present invention;

[0027] Figure 7 This is a cross-sectional view of the weft yarn feeding mechanism of the present invention;

[0028] Figure 8 This is a schematic diagram of the overall lap-welded forming of the mesh cable tray of the present invention.

[0029] As shown in the figure: 1, base plate; 2, cutting table; 3, feeding box; 4, connecting plate; 5, feeding plate; 6, warp; 7, weft; 8, machine box; 9, sliding rod; 10, straight chute; 11, positioning frame; 12, intermittent stepping rod seat; 13, lifting rod seat; 14, rod groove; 15, cutting tool bit; 16, longitudinal feeding cylinder; 17, limiting hoop; 18, electromagnetic adsorption rod; 19, blanking slope; 20, air cylinder; 21, transverse hole; 22, driving motor; 23, rotating rod; 24, welding seat; 25, sleeve; 26, self-driven roller; 27, welding rod; 28, fixed plate; 29, guide plate; 30, guide rod. DETAILED DESCRIPTION

[0030] The technical solutions of the present application will be described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] Embodiment one: for the problem of weft difficult to form stable landing during the continuous feeding process of warp, and then leading to welding deviation, the following technical solution is proposed:

[0032] Referring to Figures 1-8 , a segmented cable bridge staggered welding device in the embodiment includes a base plate 1, a feeding plate 5 for continuous feeding of warp 6 is installed on one side of the upper end of the base plate 1, and a feeding box 3 for intermittent feeding of weft 7 is suspended above the side of the base plate 1 close to the feeding plate 5;

[0033] A longitudinal feeding cylinder 16 is embedded on the feeding plate 5, a limiting hoop 17 is inserted into the longitudinal feeding cylinder 16, the limiting hoop 17 is movably arranged in the longitudinal feeding cylinder 16, and can be actively adjusted according to the diameter of the warp and weft of the mesh format cable bridge to be overlaid and welded, improving its use adaptability;

[0034] The lower end of the longitudinal feeding cylinder 16 is provided with an extension section for quick insertion and continuous feeding of the warp 6, and a plurality of self-driven rollers 26 for supporting the warp 6 are movably arranged on the inner side of the upper end of the base plate 1, wherein the self-driven roller 26 is a roller structure with a semicircular groove embedded with a micro motor, which can drive the warp 6 to complete friction transmission and realize continuous feeding;

[0035] Referring to Figure 2 , Figure 3 and Figure 7As shown, the intermittent stepping rod seat 12 is fixedly installed at both ends of the inside of the feeding box 3, the lifting rod seat 13 is installed at the middle of the feeding box 3, and the feeding box 3 is provided with a transverse drop hole 21 at one end, and the feeding box 3 is provided with a discharging straight chute 10 at the lower end corresponding to the transverse drop hole 21;

[0036] The gas cylinder 20 is installed at the middle position of the bottom of the feeding box 3, the output end of the gas cylinder 20 is transversely provided with a fixed plate 28, the upper end of the fixed plate 28 is connected with the bottom of the lifting rod seat 13, the guide plates 29 are symmetrically installed at both sides of the bottom of the feeding box 3, the guide holes are formed at both sides of the guide plates 29, the guide rods 30 matched with the guide holes are installed at both ends of the fixed plate 28, the lifting rod seat 13 is reciprocally moved by the running track of the guide rod 30 in the guide hole, the rod grooves 14 are formed in the intermittent stepping rod seat 12 and the lifting rod seat 13, the discharging slope 19 is installed at the side of the feeding box 3 away from the transverse drop hole 21, and the bottom end of the discharging slope 19 is aligned with one side of the rod groove 14 at the bottom;

[0037] The feeding process of the weft yarn 7, the weft yarn 7 is sequentially dropped and distributed in each rod groove 14 through the discharging slope 19, specifically, the gas cylinder 20 is started to drive the lifting rod seat 13 to reciprocally move up and down, which can drive the weft yarn 7 on the intermittent stepping rod seat 12 at both sides to move into the next rod groove 14, so as to achieve the stepping feeding effect, and the weft yarn 7 in the last rod groove 14 is dropped into the discharging straight chute 10 through the transverse drop hole 21, and then falls on the warp yarn 6 continuously fed through the discharging straight chute 10;

[0038] In this process, the feeding process of the weft yarn 7 can gradually shift into the rod groove 14 on the intermittent stepping rod seat 12 in the intermittent reciprocating movement of the lifting rod seat 13, and finally drop into the discharging straight chute 10 through the transverse drop hole 21 to complete the discharging, the intermittent feeding mode can realize the adjustment of the longitudinal spacing between the weft yarn 7 and the warp yarn 6 by changing the extension frequency of the gas cylinder 20, which is convenient for the adaptive overlay welding processing of the mesh format cable bridge;

[0039] Referring to Figure 4 , Figure 5 and Figure 6 As shown, the welding seat 24 aligned with the intersection point of the warp yarn 6 and the weft yarn 7 is rotatably installed at the front side of the lower end of the discharging straight chute 10, and the welding rod 27 is installed at the lower end of the welding seat 24; the electromagnetic adsorption rod 18 is installed at the lower end of the welding rod 27, wherein the electromagnetic adsorption rod 18 is provided with a coil, and the coil can generate a magnetic attraction force after being electrified, and can electromagnetically attract the warp yarn 6 and the weft yarn 7, so as to timely fix the weft yarn 7 after it falls on the warp yarn 6, and avoid the offset of the weft yarn 7 to cause the overlay welding deviation phenomenon;

[0040] It needs to be supplemented here that the processing sequence of the cable bridge is welding first and then demagnetization, and even if the cable bridge after demagnetization still exists the phenomenon of incomplete demagnetization, which does not affect the normal use process of the cable bridge, so it is not described too much here, and the person skilled in the art only needs to know that the electrified electromagnetic adsorption rod 18 can synchronously adsorb the warp 6 and the weft 7 to assist the stable positioning thereof;

[0041] Referring to Figures 3-6 As shown in the figure, the lower ends of the two sides of the straight chute 10 are provided with driving motors 22, the output ends of the driving motors 22 are connected with rotating rods 23, welding seats 24 are spacedly sleeved on the rotating rods 23 and are vertically aligned with the warp 6 respectively, and when the overlay welding is performed, the welding seats 24 are driven by the driving motors 22 to reciprocate to approach and move away from the intersection points between the warp 6 and the weft 7.

[0042] The purpose is that the welding rod 27 generates high temperature during the overlay welding operation stage, and in order to avoid the influence of the high temperature of the welding rod 27, the welding rod 27 is away from the intersection points of the two during the feeding stage of the welding gap, that is, the warp 6, so as to avoid the influence of the high temperature of the welding gap on the bending degree of the warp 6 and the weft 7.

[0043] The process of the present application is as follows, wherein the warp 6 is first converted from a coiled state to a straight rod state by the straightening device in the prior art, and then continuously fed through the longitudinal feeding cylinder 16 on the feeding plate 5, and can be preliminarily corrected during the process of passing through the longitudinal feeding cylinder 16.

[0044] At the same time, the weft 7 is sequentially distributed in each rod groove 14 by the blanking slope 19, specifically, the cylinder 20 drives the lifting rod seat 13 to move up and down reciprocally, and the weft 7 on the intermittent step rod seat 12 on both sides is moved into the next rod groove 14 during the reciprocating movement, so as to achieve the step feeding effect, and the weft 7 in the last rod groove 14 is dropped into the straight chute 10 through the horizontal drop hole 21, and then falls on the continuously fed warp 6 from the straight chute 10.

[0045] At the same time, the electromagnetic coil wound on the electromagnetic adsorption rod 18 is electrified to generate magnetism, so as to complete the positioning and adsorption of the weft 7 falling on the warp 6, the welding seat 24 is deflected to the intersection point of the warp 6 and the weft 7 by the driving motor 22, and the welding rod 27 completes the welding operation, so that the same group of intersection points between the warp 6 and the weft 7 complete a single overlay welding sequence, and the above steps are repeated to complete the segmented overlay welding of a single section of the mesh format cable bridge.

[0046] Finally, the segmented cutting is completed by the cutting knife head 15 on the cutting table 2, and the overlay welding of the next section of the mesh format cable bridge is continued.

[0047] Principle: The present invention is different from the welding method of the existing technology of the cable bridge in the following aspects: the warp yarn 6 is synchronously fed longitudinally, and the weft yarn 7 is intermittently combined to form a mesh structure, and the combination of the weft yarn 7 and the warp yarn 6 is stably positioned to achieve accurate welding.

[0048] Embodiment two: for the correction feeding process of the warp yarn 6 in embodiment one, a secondary correction structure and process for stable feeding of the warp yarn 6 is additionally provided, which is as follows:

[0049] Referring to Figure 2 and Figure 8 , a machine box 8 is mounted on one side of the base plate 1, an electric push rod is arranged in the machine box 8, positioning frames 11 are mounted on both sides of the base plate 1 corresponding to the welding forming area, sliding rods 9 are mounted at both ends of the self-driven roller 26, the outer ends of the sliding rods 9 penetrate the positioning frames 11 and are connected to the output end of the electric push rod, and the inner ends of the sliding rods 9 are movably connected to the sleeve 25 which is fixedly connected to the other positioning frame 11.

[0050] It is important to note that during the welding process, the preliminary correction feeding of the warp yarn 6 is completed, and the secondary correction feeding is performed by the self-driven roller 26 during the subsequent continuous feeding of the warp yarn 6. Specifically, the warp yarn 6 passes through the limiting hoop ring 17 in the longitudinal feeding cylinder 16 to obtain preliminary correction feeding and continue to feed, and the secondary correction feeding is completed under the support of the movably arranged self-driven roller 26. The self-driven roller 26 is driven by the electric push rod to move horizontally along the axial direction, and the self-driven roller 26 is driven to move horizontally. That is, during the continuous feeding of the warp yarn 6, the warp yarn 6 is immediately corrected after the deviation occurs at the un-welded intersection point, thereby completing the double smooth correction feeding action in combination with the preliminary correction feeding of the warp yarn 6, ensuring the accuracy of the continuous feeding of the warp yarn 6 to prevent deviation during the stacking of the weft yarn 7;

[0051] The above-mentioned deviation correction action is immediately performed after the deviation of the warp yarn 6 occurs at the un-welded intersection point, which is measured by the infrared sensor arranged above, and the left and right deviation is judged according to the infrared sensor, thereby sending a signal to the electric push rod, and the electric push rod performs the corresponding deviation correction action to correct the feeding of the warp yarn 6;

[0052] The upper end side of the substrate 1 is provided with a cutting table 2, the rear side of the feeding box 3 is provided with a connecting plate 4 welded with the cutting table 2, and the bottom of the cutting table 2 is provided with a cutting tool bit 15 for segmental cutting of the grid structure. According to the embodiment one, after the overlay welding of the cable bridge is completed, the cutting tool bit 15 on the cutting table 2 is used to cut and separate the welded cable bridge according to the segmental length, so that the separated cable bridge is discharged and stacked under the continuous rotating action of the self-driven roller 26, and the single processing process of the segmented cable bridge is completed.

[0053] Embodiment three: the embodiment combines the technical contents of embodiment one and embodiment two to form the following overlay welding method, including the following steps:

[0054] Step 1: the steel wire is first converted from a coiled state to a straight rod state through the straightening device, and then continuously fed through the longitudinal feeding cylinder 16 and the limiting hoop ring 17 on the feeding plate 5, and can be preliminarily corrected and fed during the process of passing through the longitudinal feeding cylinder 16;

[0055] Step 2: the weft wire 7 slides through the feeding slope 19 and is distributed in each rod groove 14, the cylinder 20 drives the lifting rod seat 13 to move up and down, and the weft wire 7 on the intermittent step rod seat 12 on both sides moves to the next rod groove 14 during the reciprocating movement, so that the step feeding effect is achieved, and the weft wire 7 in the last rod groove 14 falls into the discharging straight groove 10 through the horizontal hole 21, and then falls on the continuously fed warp wire 6;

[0056] Step 3: when the weft wire 7 contacts the warp wire 6, the electromagnetic coil on the electromagnetic adsorption rod 18 is energized to generate magnetism, thereby completing the positioning and adsorption of the weft wire 7 falling on the warp wire 6, the driving motor 22 drives the welding seat 24 to deflect to the intersection point of the warp wire 6 and the weft wire 7 to complete the welding operation through the welding rod 27, and thus the same group of intersection points between the warp wire 6 and the weft wire 7 complete a single overlay welding step sequence;

[0057] Step 4: the cutting tool bit 15 on the cutting table 2 completes the segmental cutting of the grid cable bridge, and the overlay welding of the next segment of the grid cable bridge is continued.

[0058] The scheme effect is as follows:

[0059] The present application is a grid structure formed by the synchronous longitudinal feeding of the warp wire 6 combined with the intermittent merging of the weft wire 7, and ensures that the merging stage of the weft wire 7 and the warp wire 6 is stably positioned, thereby achieving accurate overlay welding.

[0060] On the one hand, the continuous feeding process of the warp wire 6 is preliminarily corrected and fed in combination with the synchronous application of secondary correction feeding, so that the warp wire 6 feeding process can be stably and parallelly fed and form an absolute vertical state with the weft wire 7;

[0061] Another aspect is to realize the accurate landing of the weft yarn 7 after the blanking through the intermittent step feeding process combined with the electromagnetic adsorption stage in the blanking process of the weft yarn 7, and after landing, the near and far operation of the reciprocating overlay welding is avoided to avoid the situation that the bending degree of the warp yarn 6 and the weft yarn 7 is disturbed by the high temperature of the welding gap;

[0062] The combination of the two can realize the stable and accurate landing of the weft yarn 7 relative to the warp yarn during the overlay welding process of the mesh cable bridge, and avoid the problem of low yield of finished products caused by deviation during overlay welding.

[0063] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details and limit the application to the specific embodiments. Obviously, many modifications and changes can be made according to the content of the specification. The specification selects and describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and use the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A segmented cable tray staggered lamination welding device, comprising a substrate (1), characterized in that, A feed plate (5) for continuous feeding of warp yarns (6) is installed on one side of the upper end of the substrate (1), and a feed box (3) for intermittent feeding of weft yarns (7) is suspended above the side of the substrate (1) near the feed plate (5). The feed plate (5) is fitted with a longitudinal feed cylinder (16), and a limiting ring (17) is inserted inside the longitudinal feed cylinder (16). The upper inner side of the substrate (1) is provided with a number of self-driving rollers (26) for supporting the warp threads (6). Intermittent stepping rod seats (12) are fixedly installed at both ends inside the feed box (3), lifting rod seats (13) are installed at intervals in the middle of the feed box (3), and a transverse drop hole (21) is opened at one end of the feed box (3). A feeding straight groove (10) is installed at the lower end of the feed box (3) corresponding to the transverse drop hole (21). A welding seat (24) is rotatably installed on the front side of the lower end of the feeding straight groove (10), and a welding rod (27) aligned with the intersection of the warp wire (6) and the weft wire (7) is installed on the lower end of the welding seat (24). An electromagnetic adsorption rod (18) is installed at the lower end of the substrate (1) corresponding to the welding rod (27). A housing (8) is installed on one side of the substrate (1). An electric push rod is installed inside the housing (8). Positioning frames (11) are installed on both sides of the substrate (1) corresponding to the stacked welding area. Sliding rods (9) are installed at both ends of the self-driving roller (26). The outer end of the sliding rod (9) passes through the positioning frame (11) and is connected to the output end of the electric push rod. The inner end of the sliding rod (9) is movably connected to a sleeve (25) that is fixedly connected to another positioning frame (11). When the warp wire (6) is deviated at the unwelded intersection, a correction action is immediately performed. The deviation of the warp wire (6) is measured by the infrared sensor set above. The left and right deviations are judged according to the infrared sensor, and a signal is sent to the electric push rod. The electric push rod then performs the corresponding correction action to realize the correction feed of the warp wire (6). Both sides of the lower end of the feeding straight groove (10) are equipped with drive motors (22), and the output end of the drive motor (22) is connected to a rotating rod (23). The welding seat (24) is sleeved on the rotating rod (23) at intervals and is vertically aligned with the warp wire (6).

2. The segmented cable tray staggered welding equipment according to claim 1, characterized in that, A cylinder (20) is installed at the middle position of the bottom of the feed box (3). A fixing plate (28) is installed horizontally at the output end of the cylinder (20). The upper end of the fixing plate (28) is connected to the bottom of several lifting rod seats (13).

3. The segmented cable tray staggered welding equipment according to claim 2, characterized in that, Guide plates (29) are symmetrically installed on both sides of the bottom of the feed box (3). Guide holes are opened on both sides of the guide plates (29). Guide rods (30) matching the guide holes are installed at both ends of the fixed plate (28). The lifting rod seat (13) moves back and forth by the running trajectory of the guide rods (30) in the guide holes.

4. The segmented cable tray staggered welding equipment according to claim 3, characterized in that, Both the intermittent stepping rod seat (12) and the lifting rod seat (13) are provided with rod grooves (14). The feed box (3) is equipped with a material dropping ramp (19) on the side away from the transverse dropping hole (21). The bottom end of the material dropping ramp (19) is aligned with one side of the rod groove (14) at the bottom.

5. The segmented cable tray staggered welding equipment according to claim 1, characterized in that, A cutting table (2) is installed on one side of the upper end of the substrate (1), a connecting plate (4) is installed on the rear side of the feed box (3) and welded to the cutting table (2), and a cutting head (15) for segmented cutting of the grid structure is installed on the bottom of the cutting table (2).

Images