A limiting device for bus duct production

Abstract

The application relates to a limiting device, in particular to a limiting device for bus duct production. The limiting device for bus duct production can limit the two sides of the bus duct and the top of the bus duct, thereby improving the limiting effect. The limiting device for bus duct production comprises a placing plate, supporting frames and positioning plates, supporting frames are symmetrically fixed on the front and back sides of the bottom of the placing plate, and positioning plates are symmetrically fixed on the top of the placing plate. The bus duct is placed between the two positioning plates, the servo motor is started, the air cushion is inflated, the L-shaped block moves inward, the air cushion moves inward and contacts the bus duct, the L-shaped block limits the bus duct through the air cushion, the top of the bus duct is limited, the bus duct cannot move upward, and the limiting effect is improved.

Description

TECHNICAL FIELD

[0001] The application relates to a limiting device, in particular to a limiting device for bus duct production. BACKGROUND

[0002] During the production of a bus duct, the bus duct needs to be fixed and limited to prevent movement during processing.

[0003] A bus duct production fixing device is disclosed in Chinese Patent No. CN211761348U, which belongs to the technical field of bus duct production equipment and comprises an operation table top, a positioning groove is formed in the upper end of the operation table top, a fixed block is arranged on the upper end of the operation table top, an electric telescopic rod switch is arranged on the front side of the upper end of the operation table top and corresponds to the position of the fixed block, an electric telescopic rod is arranged on the electric telescopic rod switch, a pushing block is arranged at the front end of the electric telescopic rod, a connecting block is fixedly arranged on the outer side of the operation table top and below the positioning groove, and the connecting block is connected with a discharging plate through a clamping groove and a clamping block. Although the above-mentioned patent can fix and limit the bus duct, the top of the bus duct is not limited, the bus duct is easy to move upward during processing, the processing is affected, and the limiting effect is poor.

[0004] The application aims to solve the problems in the above-mentioned patent, and provides a limiting device for bus duct production, which can limit the two sides of the bus duct and also limit the top, thereby improving the limiting effect. SUMMARY

[0005] In order to overcome the shortcomings of the above-mentioned patent, that is, although the bus duct can be fixed and limited, the top of the bus duct is not limited, the bus duct is easy to move upward during processing, the processing is affected, and the limiting effect is poor, the application provides a limiting device for bus duct production, which can limit the two sides of the bus duct and also limit the top, thereby improving the limiting effect.

[0006] The application is achieved through the following technical approaches:

[0007] The limiting device for bus duct production comprises a placing plate, a supporting frame, an anti-skid plate, a positioning plate, a movable frame, an L-shaped block and a first spring, the bottom of the placing plate is fixedly connected with the supporting frame on the left and right sides, the top of the placing plate is fixedly connected with the positioning plate on the left and right sides in the middle, the left and right sides of the placing plate are slidably connected with the movable frame, the inner end of each of the four movable frames is slidably connected with the L-shaped block for clamping and limiting the bus duct, the outer side of each of the four L-shaped blocks is connected with the inner side of each of the four movable frames through the four first springs, the device further comprises an anti-skid mechanism and a driving mechanism, the anti-skid mechanism is arranged between the L-shaped block and the movable frame and is used for increasing the friction with the bus duct, and the driving mechanism is arranged on the placing plate and is used for driving the movable frame to move.

[0008] Further explanation, anti-skid mechanism includes double rod piston cylinder, air pipe and air cushion, four L-shaped block inside all fixed with air cushion for increasing the friction between the bus duct, the outside of the left and right two side positioning plate front and back symmetry fixed with double rod piston cylinder, four double rod piston cylinder piston rod respectively with four mobile frame upper fixed connection, four double rod piston cylinder near the position of the positioning plate are all connected with air pipe for air into the air cushion, four air pipe tail end respectively with four air cushion fixed connection and communication.

[0009] Further explanation, drive mechanism includes servo motor, screw, positioning seat and articulated rod, the bottom of the placement plate between the front and back two sides are rotatably connected with a screw, the front and back two sides of the screw thread opposite, screw on front and back symmetry screw connection has positioning seat, the left and right two ends of the front and back two side positioning seat are rotatably connected with articulated rod for driving the mobile frame to move, four articulated rod tail end respectively with four mobile frame lower rotatable connection, the bottom of the placement plate front side fixed with servo motor, the output shaft of the servo motor and the front side of the screw are driven by the synchronous belt assembly.

[0010] Further explanation, it also includes unloading mechanism for unloading bus duct, unloading mechanism includes unloading plate, elastic telescopic rod, slot frame, positioning rod, ejector rod and second spring, the top of the placement plate rear side intermediate rotatably connected with unloading plate for driving bus duct to swing upward to complete the unloading, unloading plate between the left and right two side positioning plate, the bottom of the placement plate rear side intermediate sliding connection has a slot frame, the left and right symmetrical connection between the upper side of the rear side of the slot frame and the inside of the placement plate has a second spring, the rear upper side of the slot frame is rotatably connected with the ejector rod for driving the unloading plate to swing, the tail end of the ejector rod is rotatably connected with the outer bottom rear side of the unloading plate, the bottom of the placement plate rear side intermediate fixed with positioning rod, the rear positioning seat top intermediate fixed with elastic telescopic rod for driving the slot frame to move, the upper part of the elastic telescopic rod is in contact with the positioning rod.

[0011] Further explanation, it also includes positioning mechanism for centering positioning of bus duct, positioning mechanism includes trigger block, trigger frame, wire, catheter, position adjusting plate and torsion spring, the top of the placement plate intermediate front and back symmetry rotatably connected with two position adjusting plates for centering positioning of bus duct, four position adjusting plates all through the unloading plate, the rotation between the four position adjusting plates and the placement plate is connected with a torsion spring, the bottom of the placement plate intermediate front and back symmetry fixed with four catheters, four catheters correspond to four position adjusting plates respectively, the bottom of the placement plate intermediate left and right symmetry sliding connection has a trigger frame, the upper inside of the left and right two side trigger frame is front and back symmetry connected with wire, the tail end of the four wires is fixedly connected with the inner end of the four position adjusting plates through the four catheters, the top of the front side positioning seat is fixedly connected with the trigger block for driving the trigger frame to move outward.

[0012] Further illustration, further including anti-wear plate and clamp, the inner bottom of the discharge plate embedded for the protection of the bus duct anti-wear plate, the inner bottom of the discharge plate is symmetrically clamped with the two clamps for limiting the anti-wear plate, the clamp is in contact with the anti-wear plate.

[0013] Further illustration, further including buffer block and third spring, the front side of the placement plate is slidably connected with the buffer block for buffering the discharge plate, the buffer block is in contact with the front side of the outer bottom of the discharge plate, and the third spring is connected between the lower part of the buffer block and the inner side of the placement plate.

[0014] Further illustration, further including anti-skid plate, the bottom of the four supporting frames is fixedly connected with the anti-skid plate.

[0015] The present application has the following advantages:

[0016] 1, the bus duct is placed between the left and right positioning plates, and the servo motor is started to rotate, so that the air cushion is inflated, and the L-shaped block is moved inward, the L-shaped block drives the air cushion to move inward and contact the bus duct, the L-shaped block limits the bus duct through the air cushion, and limits the top of the bus duct, which can prevent the bus duct from moving upward and affecting processing, thereby improving the limiting effect.

[0017] 2, under the action of the discharging mechanism, when the bus duct is processed and the L-shaped block is loosened, the discharging mechanism drives the bus duct to swing upward and slide to complete discharging, without the need for manual operation to take down the processed bus duct, thereby improving the discharging efficiency.

[0018] 3, under the action of the positioning mechanism, when the L-shaped block starts to move inward to limit the bus duct, the positioning mechanism can centrally position the bus duct, which can prevent the position of the bus duct from deviating and affecting processing, thereby improving the accuracy of the bus duct placement. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic diagram of the present application.

[0020] Figure 2 It is a partial cross-sectional structure schematic diagram of the positioning plate and the movable frame of the present application.

[0021] Figure 3 It is a partial cross-sectional structure schematic diagram of the L-shaped block of the present application.

[0022] Figure 4 It is a partial cross-sectional structure schematic diagram of the anti-skid mechanism of the present application.

[0023] Figure 5 It is a partial cross-sectional structure schematic diagram of the driving mechanism of the present application.

[0024] Figure 6 Figure 1 is a schematic diagram of the partial cross-sectional structure of the discharging mechanism of the application.

[0025] Figure 7 Figure 1 is a schematic diagram of the partial cross-sectional structure of the discharging mechanism of the application.

[0026] Figure 8 Figure 1 is a schematic diagram of the partial cross-sectional structure of the discharging mechanism of the application.

[0027] Figure 9 Figure 1 is a schematic diagram of the partial cross-sectional structure of the discharging mechanism of the application.

[0028] Figure 10 Figure 1 is a schematic diagram of the partial cross-sectional structure of the discharging mechanism of the application.

[0029] Figure 11 Figure 1 is a schematic diagram of the partial cross-sectional structure of the discharging mechanism of the application.

[0030] Figure 1 is a schematic diagram of the partial cross-sectional structure of the discharging mechanism of the application. DETAILED DESCRIPTION

[0031] It is first to be noted that in the various described embodiments, identical components are provided with identical reference signs or identical component names, wherein the disclosure contained in the entire description can be transferred by meaning to identical components having identical reference signs or identical component names. The chosen position indications in the description, for example, upper, lower, lateral, etc., also refer to the directly described and shown figures and are transferred by meaning to the new position in the event of a change in position. Example 1

[0032] A limiting device for bus duct production, comprising a placement plate 1, a support frame 2, an anti-skid plate 21, a positioning plate 3, a movable frame 4, an L-shaped block 5, a first spring 6, an anti-skid mechanism 7, and a driving mechanism 8, please refer to Figures 1-5As shown, the bottom of the placement plate 1 is symmetrically connected with support frames 2 on both sides, the bottom of the four support frames 2 is fixedly connected with anti-skid plates 21, the top of the placement plate 1 is symmetrically connected with positioning plates 3 on both sides, the front and rear of the placement plate 1 is symmetrically connected with movable frames 4 on both sides, the inner end of the four movable frames 4 is slidably connected with L-shaped blocks 5, when the L-shaped block 5 moves inward and contacts the bus duct, the L-shaped block 5 can clamp and limit the bus duct, the outer side of the four L-shaped blocks 5 is connected with four first springs 6 between the inner side of the four movable frames 4, the L-shaped block 5 and the movable frame 4 are provided with anti-skid mechanisms 7, when the anti-skid mechanism 7 operates, the anti-skid mechanism 7 can increase the friction with the bus duct, the placement plate 1 is provided with a driving mechanism 8, when the driving mechanism 8 operates, the driving mechanism 8 can drive the movable frame 4 to move.

[0033] The anti-skid mechanism 7 comprises a double-rod piston cylinder 71, an air guide pipe 72 and an air cushion 73, please refer to Figure 2 and Figure 4 As shown, the inner side of the four L-shaped blocks 5 is fixedly connected with air cushions 73, when the air cushion 73 expands, the air cushion 73 can increase the friction with the bus duct, the outer side of the positioning plate 3 on both sides is fixedly connected with double-rod piston cylinders 71 on both sides, the piston rod of the four double-rod piston cylinders 71 is fixedly connected with the upper part of the four movable frames 4, the position close to the positioning plate 3 of the four double-rod piston cylinders 71 is communicated with air guide pipes 72, the tail end of the four air guide pipes 72 is fixedly connected with the four air cushions 73 and communicated, when air is discharged into the air guide pipe 72, the air guide pipe 72 can discharge air into the air cushion 73.

[0034] The driving mechanism 8 comprises a servo motor 81, a lead screw 82, a positioning seat 83 and a hinged rod 84, please refer to Figure 2 and Figure 5 As shown, the bottom of the placement plate 1 is rotatably connected with lead screws 82 on both sides, the threads of the lead screws 82 on both sides are opposite, the positioning seat 83 is symmetrically and screwedly connected with the lead screw 82, the left and right ends of the positioning seat 83 on both sides are rotatably connected with hinged rods 84, the tail end of the four hinged rods 84 is rotatably connected with the lower part of the four movable frames 4, when the hinged rod 84 moves, the hinged rod 84 can drive the movable frame 4 to move, the bottom of the placement plate 1 is installed with a servo motor 81 through bolt connection, the output shaft of the servo motor 81 is connected with the front side of the lead screw 82 through a synchronous belt assembly.

[0035] First bus duct to the left and right side between the positioning, the bus duct down on the placement plate 1, and then start the servo motor 81 forward, the servo motor 81 forward through the synchronous belt assembly transmission belt drive lead screw 82 forward, lead screw 82 forward drive positioning seat 83 inward, positioning seat 83 inward drive articulated rod 84 inward, articulated rod 84 inward drive movable frame 4 inward, movable frame 4 inward drive L block 5 inward, L block 5 inward drive air cushion 73 inward, at the same time, movable frame 4 inward also drive double rod piston cylinder 71 piston rod inward, double rod piston cylinder 71 in the air is also into the air guide tube 72, the air in the air guide tube 72 into the air cushion 73, with the air into, air cushion 73 constantly expanding, and then air cushion 73 inward and bus duct contact, L block 5 through the air cushion 73 bus duct limit, due to the shape of L block 5, can be on the top of bus duct limit, and due to the expansion of the air cushion 73, air cushion 73 increase the friction with bus duct, so that L block 5 more stable bus duct limit, because of the first spring 6, can make L block 5 closely with bus duct contact, turn off the servo motor 81, lead screw 82 stop drive positioning seat 83 inward, L block 5 stop inward, that is, can begin to bus duct processing, due to the top of bus duct is also limited, can prevent the bus duct upward movement phenomenon influence processing, thereby improving the limiting effect, because of the effect of the non-slip plate 21, can make the device more stable use. When the bus duct processing is completed, the servo motor 81 is reversed, which makes the lead screw 82 reverse drive positioning seat 83 outward reset, positioning seat 83 reset through the articulated rod 84 drive movable frame 4 outward reset, movable frame 4 reset drive L block 5 reset bus duct loose, and L block 5 drive air cushion 73 outward and bus duct disengagement, at the same time, movable frame 4 also drive double rod piston cylinder 71 piston rod outward reset, air is also through the air guide tube 72 is extracted to double rod piston cylinder 71, with the air away, air cushion 73 constantly shrink reset, turn off the servo motor 81, you can take off the bus duct from the placement plate 1. Example 2

[0036] Based on example 1, it further includes unloading mechanism 9, unloading mechanism 9 includes unloading plate 91, elastic telescopic rod 92, with slot frame 93, positioning rod 94, ejector rod 95 and second spring 96, please refer to Figures 6-8As shown, the top rear middle of the placement plate 1 is rotatably connected with the discharging plate 91, the discharging plate 91 is located between the left and right positioning plates 3, when the discharging plate 91 swings upward, the discharging plate 91 can drive the bus duct to swing upward to complete discharging, the bottom rear middle of the placement plate 1 is slidably connected with the slotted frame 93, the left and right symmetrical second springs 96 are connected between the upper rear side of the slotted frame 93 and the inner side of the placement plate 1, the top side of the rear of the slotted frame 93 is rotatably connected with the ejector rod 95, the tail end of the ejector rod 95 is rotatably connected with the outer bottom rear side of the discharging plate 91, when the ejector rod 95 swings upward, the ejector rod 95 can drive the discharging plate 91 to swing, the bottom rear middle of the placement plate 1 is installed with the positioning rod 94 through bolt connection, the top middle of the rear positioning seat 83 is installed with the elastic expansion rod 92 through welding connection, the upper part of the elastic expansion rod 92 is in contact with the positioning rod 94, when the elastic expansion rod 92 moves inward and inserts into the slotted frame 93, the movement of the elastic expansion rod 92 can drive the slotted frame 93 to move.

[0037] Further comprising a positioning mechanism 10, the positioning mechanism 10 comprises a trigger block 101, a trigger frame 102, a pull wire 103, a guide pipe 104, a position adjusting plate 105 and a torsion spring 106, please refer to Figure 6 、 Figure 9 and Figure 10 As shown, the top middle of the placement plate 1 is rotatably connected with two position adjusting plates 105 which are symmetrically arranged front and back, the four position adjusting plates 105 all penetrate the discharging plate 91, when the position adjusting plate 105 swings upward, the position adjusting plate 105 can realize the center positioning of the bus duct, the torsion springs 106 are connected at the rotation between the four position adjusting plates 105 and the placement plate 1, the bottom middle of the placement plate 1 is fixedly connected with four guide pipes 104 which are symmetrically arranged left and right, the four guide pipes 104 correspond to the four position adjusting plates 105 respectively, the bottom middle of the placement plate 1 is slidably connected with the trigger frame 102 which is symmetrically arranged left and right, the inner side of the upper part of the left and right trigger frames 102 are both connected with the pull wires 103 which are symmetrically arranged front and back, the tail ends of the four pull wires 103 are fixedly connected with the inner ends of the four position adjusting plates 105 through the four guide pipes 104 respectively, the top middle of the front positioning seat 83 is installed with the trigger block 101 through welding connection, when the trigger block 101 moves inward and contacts with the trigger frame 102, the trigger block 101 can drive the trigger frame 102 to move outward.

[0038] At the beginning, the elastic telescopic rod 92 is in the compressed state, when the bus duct moves down for placement, the bus duct contacts with the discharging plate 91, the servo motor 81 is started to rotate forward, which drives the lead screw 82 to rotate forward to drive the positioning seat 83 to move inward, the rear positioning seat 83 moves inward to drive the elastic telescopic rod 92 to move inward, the elastic telescopic rod 92 moves inward to be out of contact with the positioning rod 94, the elastic telescopic rod 92 moves upward to reset, when the elastic telescopic rod 92 moves inward to contact with the slotted bracket 93, the slotted bracket 93 drives the elastic telescopic rod 92 to move downward by a certain distance, when the elastic telescopic rod 92 continues to move inward to correspond to the slot of the slotted bracket 93, the elastic telescopic rod 92 moves upward to be inserted into the slot of the slotted bracket 93, at this time, the L-shaped block 5 limits the bus duct, the servo motor 81 is turned off, the lead screw 82 stops driving the positioning seat 83 to move inward, the rear positioning seat 83 stops driving the elastic telescopic rod 92 to move inward, when the bus duct is processed, the collecting container is placed below the placing plate 1, the servo motor 81 is started to rotate reversely, the lead screw 82 rotates reversely to drive the positioning seat 83 to move outward to reset, the rear positioning seat 83 moves outward to drive the elastic telescopic rod 92 to move outward, the elastic telescopic rod 92 moves outward to drive the slotted bracket 93 to move outward, the second spring 96 is compressed, the slotted bracket 93 moves outward to drive the jacking rod 95 to swing upward, the jacking rod 95 swings upward to drive the discharging plate 91 to swing upward, the discharging plate 91 swings upward to drive the bus duct to swing upward, the bus duct swings upward to be in an inclined state, and the bus duct slides off the discharging plate 91 and falls into the collecting container, when the elastic telescopic rod 92 continues to move outward to contact with the positioning rod 94, the positioning rod 94 drives the elastic telescopic rod 92 to move downward, the elastic telescopic rod 92 moves downward to be out of contact with the slot of the slotted bracket 93, due to the action of the second spring 96, the slotted bracket 93 moves inward to reset through the jacking rod 95 to drive the discharging plate 91 to swing downward to reset. In this way, the operator does not need to manually take down the processed bus duct, thereby improving the discharging efficiency.

[0039] When the bus duct is placed, the servo motor 81 is started and the front positioning seat 83 moves inwardly to drive the trigger block 101 to move inwardly, the trigger block 101 moves inwardly to contact the trigger frame 102, the trigger block 101 drives the trigger frame 102 to move outwardly, the trigger frame 102 moves outwardly to drive the pull wire 103 to move outwardly, the pull wire 103 moves outwardly through the guide pipe 104 to drive the adjusting plate 105 to swing inwardly, the torsion spring 106 is compressed, the adjusting plate 105 swings inwardly to center the bus duct, the trigger block 101 continues to move inwardly to disengage from the trigger frame 102, and due to the action of the torsion spring 106, the adjusting plate 105 swings outwardly to reset and drives the pull wire 103 to move upwardly to reset, and the pull wire 103 moves upwardly to reset through the guide pipe 104 to drive the trigger frame 102 to move inwardly to reset. When the servo motor 81 is reversed, the front positioning seat 83 moves outwardly to reset to drive the trigger block 101 to move outwardly to reset. In this way, the placement position of the bus duct can be prevented from deviating to affect processing, thereby improving the accuracy of the placement of the bus duct. Embodiment 3

[0040] On the basis of Embodiment 1 and Embodiment 2, it further includes the wear plate 11 and the clamp 12, please refer to Figure 11 The wear plate 11 is embedded in the inner bottom of the discharge plate 91, the wear plate 11 can protect the bus duct, and the two clamps 12 are symmetrically clamped on the inner bottom of the discharge plate 91, the clamp 12 contacts the wear plate 11, and the clamp 12 can limit the wear plate 11.

[0041] It further includes the buffer block 13 and the third spring 14, please refer to Figure 11 The buffer block 13 is slidably connected to the front side of the placement plate 1, the buffer block 13 contacts the front side of the outer bottom of the discharge plate 91, when the discharge plate 91 swings downwardly to reset, the buffer block 13 can buffer the discharge plate 91, and the third spring 14 is symmetrically connected between the lower part of the buffer block 13 and the inner side of the placement plate 1.

[0042] When the bus duct is placed on the discharge plate 91, the bus duct contacts the wear plate 11, and the wear plate 11 protects the bus duct. In this way, the bus duct can be prevented from being directly rubbed with the discharge plate 91 to cause wear, thereby ensuring the overall quality of the bus duct.

[0043] Initially, the third spring 14 is in a stretched state, when the unloading plate 91 swings upward to drive the bus duct to swing upward to complete unloading, the unloading plate 91 swings upward and is out of contact with the buffer block 13, due to the action of the third spring 14, the buffer block 13 moves upward by a certain distance, when the unloading plate 91 swings downward to reset, the unloading plate 91 is in contact with the buffer block 13, the unloading plate 91 drives the buffer block 13 to move downward, the third spring 14 is stretched, due to the action of the third spring 14, the buffer block 13 buffers the unloading plate 91. In this way, it can prevent the unloading plate 91 from being damaged and deformed due to violent contact with the placing plate 1, thereby improving the service life of the unloading plate 91.

[0044] Finally, it is necessary to point out that: the above content is only used to help understand the technical solutions of the present application, and cannot be understood as a limitation on the protection scope of the present application; non-essential improvements and adjustments made by those skilled in the art based on the above content of the present application are within the scope of the present application.

Claims

1. A limiting device for busbar trunking production, comprising a placement plate (1), a support frame (2), an anti-slip plate (21), a positioning plate (3), a movable frame (4), L-shaped blocks (5), and first springs (6), wherein the placement plate (1) is symmetrically fixed to the front and rear sides of its bottom with support frames (2), the placement plate (1) is symmetrically fixed to the middle of its top with positioning plates (3), the placement plate (1) is symmetrically slidably connected to the front and rear sides with movable frames (4), the inner ends of the four movable frames (4) are slidably connected to L-shaped blocks (5) for clamping and limiting the busbar trunking, and the outer sides of the four L-shaped blocks (5) are respectively connected to the inner sides of the four movable frames (4) with four first springs (6), characterized in that, It also includes an anti-slip mechanism (7) and a drive mechanism (8). An anti-slip mechanism (7) is provided between the L-shaped block (5) and the movable frame (4) to increase the friction with the busbar. A drive mechanism (8) is provided on the placement plate (1) to move the movable frame (4). The anti-slip mechanism (7) includes a double-rod piston cylinder (71), an air guide pipe (72), and an air cushion (73). The inner sides of the four L-shaped blocks (5) are all fixed with air cushions (73) to increase the friction between them and the busbar. The outer sides of the left and right positioning plates (3) are symmetrically fixed with double-rod piston cylinders (71). The piston rods of the four double-rod piston cylinders (71) are fixedly connected to the upper part of the four movable frames (4). The positions of the four double-rod piston cylinders (71) near the positioning plates (3) are all connected with air guide pipes (72) to discharge air into the air cushions (73). The tail ends of the four air guide pipes (72) are fixedly connected to and connected to the four air cushions (73).

2. A limiting device for busbar trunking production according to claim 1, characterized in that, The drive mechanism (8) includes a servo motor (81), a lead screw (82), a positioning seat (83), and a hinge rod (84). The lead screw (82) is rotatably connected between the front and rear sides of the bottom of the placement plate (1). The threads of the lead screw (82) on the front and rear sides are opposite. The positioning seat (83) is symmetrically connected to the lead screw (82). The left and right ends of the positioning seats (83) on the front and rear sides are rotatably connected to the hinge rod (84) for moving the movable frame (4). The tail ends of the four hinge rods (84) are rotatably connected to the lower part of the four movable frames (4). The servo motor (81) is fixedly connected to the front side of the bottom of the placement plate (1). The output shaft of the servo motor (81) is driven to the front side of the lead screw (82) through a synchronous belt assembly.

3. A limiting device for busbar trunking production according to claim 2, characterized in that, It also includes an unloading mechanism (9) for unloading the busbar trunking. The unloading mechanism (9) includes an unloading plate (91), an elastic telescopic rod (92), a grooved frame (93), a positioning rod (94), a top rod (95), and a second spring (96). The unloading plate (91) for driving the busbar trunking to swing upward to complete the unloading is rotatably connected to the middle of the rear side of the top of the placement plate (1). The unloading plate (91) is located between the positioning plates (3) on the left and right sides. The grooved frame (93) is slidably connected to the middle of the rear side of the bottom of the placement plate (1). The grooved frame (93) is located on the rear side of the grooved frame (93). A second spring (96) is symmetrically connected between the upper part of the surface and the inner side of the placement plate (1). A top rod (95) for driving the unloading plate (91) to swing is rotatably connected to the upper rear part of the grooved frame (93). The tail end of the top rod (95) is rotatably connected to the rear side of the bottom of the unloading plate (91). A positioning rod (94) is fixedly connected to the middle of the rear side of the bottom of the placement plate (1). An elastic telescopic rod (92) for driving the grooved frame (93) to move is fixedly connected to the middle of the top of the rear positioning seat (83). The upper part of the elastic telescopic rod (92) is in contact with the positioning rod (94).

4. A limiting device for busbar trunking production according to claim 3, characterized in that, It also includes a positioning mechanism (10) for centering the busbar trunking. The positioning mechanism (10) includes a trigger block (101), a trigger frame (102), a pull wire (103), a conduit (104), an adjusting plate (105), and a torsion spring (106). Two adjusting plates (105) for centering the busbar trunking are symmetrically rotated and connected to the top center of the placement plate (1). All four adjusting plates (105) pass through the unloading plate (91). Torsion springs (106) are connected to the rotation points between the four adjusting plates (105) and the placement plate (1). 1) Four conduits (104) are symmetrically fixed in the middle of the bottom. The four conduits (104) correspond to the four adjustment plates (105) respectively. The bottom of the placement plate (1) is symmetrically connected to the trigger frame (102). The upper inner side of the trigger frame (102) on both sides is symmetrically connected to the pull wire (103). The tail ends of the four pull wires (103) pass through the four conduits (104) and are fixedly connected to the inner ends of the four adjustment plates (105). The top of the front positioning seat (83) is fixed to the trigger block (101) for driving the trigger frame (102) to move outward.

5. A limiting device for busbar trunking production according to claim 4, characterized in that, It also includes a wear plate (11) and clamps (12). The bottom of the unloading plate (91) is embedded with a wear plate (11) for protecting the busbar. The bottom of the unloading plate (91) is symmetrically clamped with two clamps (12) for limiting the wear plate (11). The clamps (12) are in contact with the wear plate (11).

6. A limiting device for busbar trunking production according to claim 5, characterized in that, It also includes a buffer block (13) and a third spring (14). The buffer block (13) is slidably connected to the middle of the front side of the placement plate (1) for buffering the unloading plate (91). The buffer block (13) contacts the front side of the bottom of the unloading plate (91). The lower part of the buffer block (13) is symmetrically connected to the inner side of the placement plate (1) on the left and right.

7. A limiting device for busbar trunking production according to claim 6, characterized in that, It also includes anti-slip plates (21), and the bottom of the four support frames (2) are all fixed with anti-slip plates (21).

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