Device for pasting insulation paper on block type motor stator iron core

Abstract

The utility model discloses a device for sticking insulation paper on a block type motor stator iron core. Comprising an iron core clamping mechanism, an insulation paper feeding mechanism, an insulation paper pasting mechanism and an insulation paper detection mechanism, the insulation paper pasting mechanism is arranged on one side of the insulation paper feeding mechanism, and the iron core clamping mechanism and the insulation paper detection mechanism are arranged below the insulation paper feeding mechanism and the insulation paper pasting mechanism respectively. The stator iron core assembly is loaded on the iron core assembly line disc and is transported along the assembly line. According to the utility model, an insulation paper detection function is added, a stator core without insulation paper is prevented from flowing into a next station, a clamping groove strip fixing support and a winding drum clamping groove strip are added in the waste material belt winding mechanism, a waste material roll can be conveniently taken out manually, the operation is simple, and the efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of processing structures of segmented motor stators, and in particular to a device for pasting insulating paper on a segmented motor stator core. Background Art

[0002] Insulation is required between adjacent two core windings of a segmented motor stator to avoid short circuit between adjacent two core windings. Adding an insulating paper between two core windings is a common way to increase the insulation performance between stator windings.

[0003] The existing insulating paper pasting mechanism for core stators has no insulating paper detection function and cannot determine whether insulating paper is pasted on the core stator. Moreover, there is no mechanism for quickly handling flying coils in the waste tape winding mechanism. After the waste tape is wound on the reel, it is difficult for workers to remove the flying coil, and the waste coil needs to be cut open with a utility knife to be removed. Summary of the Utility Model

[0004] In order to solve the problems in the background art, the utility model provides a device for pasting insulating paper on a segmented motor stator core.

[0005] The utility model has two improvements. One is to add an insulating paper detection function to prevent the stator core without pasted insulating paper from flowing into the subsequent workstations. The other is to optimize the waste tape winding mechanism to facilitate the removal of the waste coil by workers.

[0006] The technical solution adopted by the utility model is as follows:

[0007] The device includes a core clamping mechanism, an insulating paper feeding mechanism, an insulating paper pasting mechanism and an insulating paper detection mechanism. The insulating paper pasting mechanism is arranged on one side of the insulating paper feeding mechanism. The core clamping mechanism and the insulating paper detection mechanism are respectively arranged below the insulating paper feeding mechanism and the insulating paper pasting mechanism. The stator core assembly is loaded on the core flow tray and transported along the assembly line.

[0008] The core clamping mechanism includes a cylinder seat, a lifting cylinder, a gripper mounting plate, a gripper, a first gripper and a second gripper. The lifting cylinder is fixedly installed on the cylinder seat. The cylinder rod of the lifting cylinder is arranged vertically upward and a gripper mounting plate is fixedly installed at the upper end. The gripper is fixedly installed on the gripper mounting plate. The gripper has a first gripper and a second gripper that move horizontally towards or away from each other.

[0009] The described insulating paper feeding mechanism mainly consists of six parts: a support component, an insulating paper tape discharging mechanism, a pressure tape mechanism, a tape driving mechanism, a paper peeling mechanism, and a waste tape collecting mechanism. The insulating paper tape discharging mechanism is fixedly installed on the support component, and the pressure tape mechanism, tape driving mechanism, paper peeling mechanism, and waste tape collecting mechanism are all distributed and installed on the insulating paper tape discharging mechanism. The insulating paper tape discharging mechanism is used to wind the insulating paper tape, the pressure tape mechanism is used to press the insulating paper on the insulating paper tape, the tape driving mechanism is used to drive the insulating paper tape discharging mechanism to drive the insulating paper tape wound on the insulating paper tape discharging mechanism to discharge, the paper peeling mechanism is used to assist in peeling the insulating paper on the insulating paper tape, and the waste tape collecting mechanism is used to recycle the peeled insulating paper tape.

[0010] The described insulating paper tape discharging mechanism includes a feeding bottom plate, a tape reel baffle, a tensioner, a tape reel substrate, idler wheels, an insulating paper tape, a tape reel shaft, and a tape reel sleeve. The feeding bottom plate is fixedly installed on the support component, the tape reel substrate is fixedly installed on the top of the feeding bottom plate, the tensioner is installed on the tape reel substrate, the tensioner is coaxially fixed to the tape reel shaft through a coupling, two tape reel baffles and a tape reel sleeve located between the two tape reel baffles are sleeved on the tape reel shaft, and a plurality of idler wheels are installed on the side and below of the tape reel shaft. One end of the insulating paper tape is wound on the tape reel sleeve, and the other end is wound around the waste tape collecting mechanism after passing through a plurality of idler wheels.

[0011] The described tape driving mechanism includes a servo motor, a speed reducer, a first synchronous pulley, a synchronous belt, a first round belt pulley, a second synchronous pulley, a cylinder, a driving wheel, and a driven wheel. The servo motor and the speed reducer are both installed on the feeding bottom plate. The output shaft of the servo motor is coaxially fixed to the first synchronous pulley through the speed reducer. The first synchronous pulley and the second synchronous pulley are connected by a first belt transmission pair of the synchronous belt. The second synchronous pulley and the driving wheel are coaxially fixedly connected. The insulating paper tape passes around the driving wheel, and the driving wheel is also coaxially fixedly connected with a first round belt pulley for connecting with the waste tape collecting mechanism. A cylinder is arranged above the side of the driving wheel. The cylinder is fixedly installed on the feeding bottom plate through a cylinder support. The cylinder rod of the cylinder is arranged towards the driving wheel, and a driven wheel is installed on the cylinder rod of the cylinder. The driving wheel and the driven wheel are in contact with each other and the insulating paper tape passes through the contact surface.

[0012] The described paper peeling mechanism includes a connecting plate, a label sensor, a paper peeling knife, and a limiting plate. The connecting plate is fixedly installed on the feeding bottom plate. The paper peeling knife is fixed under the connecting plate through a cushion plate. Two limiting plates are arranged on the paper peeling knife. The insulating paper tape passes around the bottom end of the paper peeling knife. The bottom end of the paper peeling knife is set as an inclined knife surface for assisting in peeling the insulating paper from the insulating paper tape. The label sensor is located above the paper peeling knife and is fixed to the side of the connecting plate through a sensor support.

[0013] The waste material collecting belt mechanism includes a second circular pulley, a waste material collecting rotating shaft, a waste material baffle, a reel, a reel card slot strip, and a card slot strip fixing bracket; the waste material collecting rotating shaft is rotatably installed on the feeding bottom plate through a second pedestal bearing, one end of the waste material collecting rotating shaft is coaxially and fixedly connected with a second circular pulley, the second circular pulley and the first circular pulley of the material belt driving mechanism are connected through a second belt transmission pair of a circular belt, the other end of the waste material collecting rotating shaft is fixedly sleeved with a waste material baffle and a reel, the reel is used for winding the insulating paper material belt, and a reel card slot strip and a card slot strip fixing bracket for tensioning and removing the insulating paper material belt are clamped on the reel.

[0014] The pressure material belt mechanism includes a pressure material belt bottom plate, a cylinder base, a pressure material belt cylinder, and a pressing plate; the pressure material belt bottom plate is fixed on the feeding bottom plate, the pressure material belt cylinder is fixedly installed on the side of the pressure material belt bottom plate through the cylinder base, the cylinder rod of the pressure material belt cylinder is arranged towards the direction, and the end of the cylinder rod is fixedly connected with the upper pressing plate among the two pressing plates, the two pressing plates are respectively located on the upper and lower sides of the insulating paper material belt, and the lower pressing plate among the two pressing plates is fixed on the pressure material belt bottom plate.

[0015] Both the driving wheel and the driven wheel are gears with tooth structures and are meshed with each other.

[0016] On both sides of the outer peripheral surface of the reel, there is a strip-shaped groove along the axial direction. The reel card slot strip is U-shaped, and the two branch parts of the reel card slot strip are respectively clamped in the strip-shaped grooves on both sides of the outer peripheral surface of the reel. And on the outer sides of the two branch parts of the U-shape of the reel card slot strip, there are also strip-shaped grooves along the axial direction, and the groove depth of the strip-shaped grooves gradually increases from the outer end to the inner end along the axial direction of the reel; the card slot strip fixing bracket has elasticity, and both ends are respectively embedded in the strip-shaped grooves along the two branch parts of the reel.

[0017] Both the first belt transmission pair and the second belt transmission pair are connected to the driving wheel and are driven by a servo motor to work, sharing a driving power.

[0018] The insulating paper pasting mechanism includes a bracket, a lead screw module, a module connector plate, a vacuum generator, a sliding table cylinder, a cylinder connecting plate, a rotating cylinder, a suction head bottom plate, a foam fixing plate, and a foam suction head; the lead screw module is installed on the bracket and arranged vertically, the module connector plate is fixed on the slider of the lead screw module, the vacuum generator and the sliding table cylinder are both fixedly installed on the module connector plate, the cylinder rod of the sliding table cylinder is horizontally arranged towards the insulating paper material belt on the insulating paper feeding mechanism, and the cylinder rod of the sliding table cylinder is fixedly connected with the cylinder connecting plate, a rotating cylinder is installed on the cylinder connecting plate, the rotating end of the rotating cylinder is fixedly connected with the suction head bottom plate, the foam fixing plate is fixedly installed on the suction head bottom plate, the foam fixing plate is provided with a foam suction head for sucking the insulating paper, and the foam suction head is communicated with the vacuum generator through an air pipe.

[0019] The described insulating paper detection mechanism includes a support, a sensor support rod, a sensor fixing plate, and a color mark sensor. The lower end of the sensor support rod is fixed on the support, and the color mark sensor is fixedly installed at the upper end of the sensor support rod through the sensor fixing plate. The color mark sensor is oriented towards the arrangement of the insulating paper tape.

[0020] The beneficial effects of the present utility model are as follows:

[0021] The present utility model adds an insulating paper detection function, avoiding the stator core without insulating paper pasted from flowing into the next working station. In the waste tape winding mechanism, a slot bar fixing bracket and a reel slot bar are added, facilitating the manual removal of the waste roll. The operation is simple and the efficiency is improved. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the insulating paper pasting mechanism for the sectionalized motor stator core of the present utility model.

[0023] Figure 2 It is an exploded view of the insulating paper pasting mechanism for the sectionalized motor stator core of the present utility model.

[0024] Figure 3 It is a schematic diagram of the motor stator core assembly of the present utility model.

[0025] Figure 4 It is a schematic diagram of the stator clamping mechanism of the present utility model.

[0026] Figure 5 It is one of the schematic diagrams of the insulating paper feeding mechanism of the present utility model.

[0027] Figure 6 It is an exploded view of the insulating paper feeding mechanism of the present utility model.

[0028] Figure 7 It is the second schematic diagram of the insulating paper feeding mechanism and the movement flow direction of the insulating paper tape of the present utility model.

[0029] Figure 8 It is one of the schematic diagrams of the insulating paper tape discharging mechanism of the present utility model.

[0030] Figure 9 It is the second schematic diagram of the insulating paper tape discharging mechanism of the present utility model.

[0031] Figure 10 It is a partial cross-sectional view of the insulating paper tape discharging mechanism of the present utility model.

[0032] Figure 11 It is a schematic diagram of the pressure tape mechanism of the present utility model.

[0033] Figure 12 It is one of the schematic diagrams of the tape driving mechanism of the present utility model.

[0034] Figure 13 It is the second schematic diagram of the strip driving mechanism of the present utility model.

[0035] Figure 14 It is the second cross-sectional view of the strip driving mechanism of the present utility model.

[0036] Figure 15 It is the meshing schematic diagram of the driving driving wheel and the pressing wheel of the strip of the present utility model.

[0037] Figure 16 It is the first schematic diagram of the paper peeling mechanism of the present utility model.

[0038] Figure 17 It is the exploded view of the paper peeling mechanism of the present utility model.

[0039] Figure 18 It is the schematic diagram of the waste strip collecting mechanism of the present utility model.

[0040] Figure 19 It is the second cross-sectional view of the waste strip collecting mechanism of the present utility model.

[0041] Figure 20 It is the schematic diagram of the insulating paper pasting mechanism of the present utility model.

[0042] Figure 21 It is the schematic diagram of the insulating paper detection mechanism of the present utility model.

[0043] Figure 22 It is the partial schematic diagram of the insulating paper strip discharging mechanism of the present utility model.

[0044] Figure 23 It is the quarter cross-sectional view of the foam suction head and the foam fixing plate of the present utility model.

[0045] Figure 24 It is the partial schematic diagram of the waste strip collecting mechanism of the present utility model.

[0046] In the figure:

[0047] A0, stator core assembly: A1, stator core, A2, insulating paper;

[0048] B0, iron core water tray;

[0049] C0, iron core clamping mechanism: C1, cylinder seat, C2, lifting cylinder, C3, claw mounting plate, C4, claw, C5, first claw, C6, second claw;

[0050] D0, Insulating paper feeding mechanism: D1, supporting component, D2, insulating paper tape discharging mechanism, D3, pressure tape mechanism, D4, tape driving mechanism, D5, paper peeling mechanism, D6, waste tape collecting mechanism; D7, feeding bottom plate, D8, tape reel baffle, D9, tensioner, D10, tensioner mounting plate, D11, tensioner support rod, D12, tape reel base plate, D13, idler wheel column, D14, idler wheel, D15, insulating paper tape, D16, tape reel fixing ring, D17, tape reel shaft, D18, first pedestal bearing, D19, coupling, D20, tape reel sleeve; D21, pressure tape bottom plate, D22, cylinder base, D23, pressure tape cylinder, D24, pressure plate; D25, servo motor, D26, reducer, D27, first synchronous pulley, D28, synchronous belt, D29, tensioning pulley, D30, cylinder support, D31, first round belt pulley, D32, second synchronous pulley, D33, cylinder, D34, bearing plate, D35, support column, D36, pressure wheel plate, D37, gasket, D38, first bearing, D39, driving wheel, D40, rotating shaft, D41, second bearing, D42, driven wheel; D43, connecting plate, D44, backing plate, D45, sensor bracket, D46, label sensor, D47, paper peeling knife, D48, limit plate; D49, round belt, D50, second round belt pulley, D51, waste collecting rotating shaft, D52, second pedestal bearing, D53, spacer ring, D54, waste baffle, D55, reel, D56, reel card slot strip, D57, card slot strip fixing bracket;

[0051] E0, Insulating paper pasting mechanism: E1, bracket, E2, lead screw module, E3, module connector plate, E4, vacuum generator, E5, vacuum pressure switch, E6, slide cylinder, E7, cylinder connecting plate, E8, rotating cylinder, E9, suction head bottom plate, E10, foam fixing plate, E11, foam suction head;

[0052] F0, Insulating paper detection mechanism: F1, support, F2, sensor support rod, F3, sensor fixing plate, F4, color mark sensor. Specific embodiments

[0053] The present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0054] As Figure 1 and Figure 2As shown in the figure, the device of the present utility model includes a stator core assembly A0, a core water tray B0, a core clamping mechanism C0, an insulating paper feeding mechanism D0, an insulating paper pasting mechanism E0, and an insulating paper detection mechanism F0. The main structure of the device is as follows: The insulating paper pasting mechanism E0 is arranged on one side of the insulating paper feeding mechanism D0. The core clamping mechanism C0 and the insulating paper detection mechanism F0 are respectively arranged below the insulating paper feeding mechanism D0 and the insulating paper pasting mechanism E0. The stator core assembly A0 is loaded on the core water tray B0 and transported along the production line. The core water tray B0 is a carrier for the stator core assembly A0 and the stator core A1 therein to move on the production line. During operation, the core clamping mechanism C0 clamps the stator core A1 of the stator core assembly A0. The insulating paper feeding mechanism D0 continuously transports the insulating paper tape. The insulating paper pasting mechanism E0 sucks the insulating paper on the insulating paper tape and pastes it on the outer side of the stator core A1. Finally, the insulating paper detection mechanism F0 detects whether the insulating paper is pasted and proceeds to the next process.

[0055] As Figure 3 shown, the stator core assembly A0 includes a stator core A1 and an insulating paper A2. The insulating paper A2 needs to be pasted on the outer side of the stator core A1, and the long side of the insulating paper A2 needs to be pasted vertically.

[0056] As Figure 4 shown, the core clamping mechanism C0 includes a cylinder seat C1, a lifting cylinder C2, a gripper mounting plate C3, a gripper C4, a first gripper C5, and a second gripper C6. The cylinder seat C1 is fixed. The lifting cylinder C2 is fixedly installed on the cylinder seat C1. The cylinder rod of the lifting cylinder C2 is arranged vertically upward and a gripper mounting plate C3 is fixedly installed at the upper end. The gripper C4 is fixedly installed on the gripper mounting plate C3. The gripper C4 has a first gripper C5 and a second gripper C6 that move horizontally closer to or away from each other.

[0057] As Figure 5 、 Figure 6 shown, the insulating paper feeding mechanism D0 mainly consists of six parts: a support component D1, an insulating paper tape discharging mechanism D2, a pressure tape mechanism D3, a tape driving mechanism D4, a paper peeling mechanism D5, and a waste tape collecting mechanism D6. The support component D1 is fixed. The insulating paper tape discharging mechanism D2 is fixedly installed on the support component D1. The pressure tape mechanism D3, the tape driving mechanism D4, the paper peeling mechanism D5, and the waste tape collecting mechanism D6 are all distributed and installed on the feeding bottom plate D7 of the insulating paper tape discharging mechanism D2.

[0058] The insulating paper tape discharging mechanism D2 is used to wind the insulating paper tape, the pressure tape mechanism D3 is used to press the insulating paper on the insulating paper tape, the tape driving mechanism D4 is used to drive the insulating paper tape discharging mechanism D2 to drive the insulating paper tape wound on the insulating paper tape discharging mechanism D2 to discharge, the paper peeling mechanism D5 is used to assist in peeling the insulating paper on the insulating paper tape, and the waste tape collecting mechanism D6 is used to recycle the peeled insulating paper tape.

[0059] The supporting component D1 is only a bracket and is used for installation and fixation.

[0060] As Figure 8 and Figure 9 As shown, the insulating paper tape discharging mechanism D2 includes a feeding bottom plate D7, a tape reel baffle D8, a tensioner D9, a tape reel substrate D12, an idler pulley D14, an insulating paper tape D15, a tape reel shaft D17 and a tape reel sleeve D20; the feeding bottom plate D7 is vertically arranged and fixedly installed on the supporting component D1, the tape reel substrate D12 is fixedly installed on the top of the feeding bottom plate D7, the tensioner D9 is installed on the tape reel substrate D12 through a tensioner mounting plate D10 and a tensioner support rod D11. Specifically, the tensioner mounting plate D10 is fixedly installed on the side of the tape reel substrate D12 through the tensioner support rod D11, and the tensioner D9 is installed on the tensioner mounting plate D10.

[0061] As Figure 10 As shown, the tensioner D9 passes through the tensioner mounting plate D10 and is coaxially fixed to the tape reel shaft D17 through a coupling D19. The tape reel shaft D17 is rotatably arranged through the tape reel substrate D12 by a first pedestal bearing D18. Two tape reel baffles D8 and a tape reel sleeve D20 located between the two tape reel baffles D8 are fixedly sleeved on the tape reel shaft D17. A tape reel fixing ring D16 for axially positioning and limiting the tape reel baffle D8 is sleeved on the tape reel shaft D17 outside the two tape reel baffles D8; a plurality of idler pulleys D14 are installed on the side and below the tape reel shaft D17 and are arranged at intervals. One end of the insulating paper tape D15 is wound on the tape reel sleeve D20, and the other end winds around the reel D55 of the waste tape collecting mechanism D6 after passing through a plurality of idler pulleys D14 in an S-shaped path;

[0062] In a specific implementation, at least six idler pulleys D14 are provided, including two upper and lower ones on the side of the tape reel sleeve D20, two horizontal ones on both sides of the pressure tape mechanism D3, and two horizontal ones between the tape driving mechanism D4 and the paper peeling mechanism D5. Moreover, the uppermost idler pulley D14 is fixedly installed on the tape reel substrate D12 through an idler pulley column D13. One end of the idler pulley column D13 is fixed to the tape reel substrate D12, and the other end is hingedly installed with the idler pulley D14.

[0063] As Figure 11As shown, the pressure belt mechanism D3 includes a pressure belt bottom plate D21, a cylinder base D22, a pressure belt cylinder D23, and a pressure plate D24. The pressure belt bottom plate D21 is fixed on the feeding bottom plate D7. The pressure belt cylinder D23 is fixedly installed on the side of the pressure belt bottom plate D21 through the cylinder base D22. The cylinder rod of the pressure belt cylinder D23 is arranged towards the front, and the end of the cylinder rod is fixedly connected to the upper pressure plate D24 among the two pressure plates D24. The two pressure plates D24 are arranged opposite to each other at an upper and lower interval. The two pressure plates D24 are respectively located on the upper and lower sides of the passing insulating paper tape D15 for pressing the insulating paper tape D15 tightly. The lower pressure plate D24 among the two pressure plates D24 is fixed on the side of the pressure belt bottom plate D21.

[0064] As Figure 12 and Figure 13 shown, the tape driving mechanism D4 includes a servo motor D25, a speed reducer D26, a first synchronous pulley D27, a synchronous belt D28, a first round belt pulley D31, a second synchronous pulley D32, a cylinder D33, a driving wheel D39, and a driven wheel D42. The servo motor D25 and the speed reducer D26 are both installed on the feeding bottom plate D7. The output shaft of the servo motor D25 is coaxially fixedly connected to the first synchronous pulley D27 through the speed reducer D26. The first synchronous pulley D27 and the second synchronous pulley D32 are connected by a first belt transmission pair of the synchronous belt D28. The second synchronous pulley D32 and the driving wheel D39 are coaxially fixedly connected. The insulating paper tape D15 passes around the driving wheel D39. Specifically, the driving wheel D39 has a shaft portion, and the second synchronous pulley D32 is fixedly sleeved on the shaft portion of the driving wheel D39. The driving wheel D39 is also coaxially fixedly connected to a first round belt pulley D31, and the first round belt pulley D31 is used to connect to the waste tape collecting mechanism D6. A cylinder D33 is arranged above the driving wheel D39. The cylinder D33 is fixedly installed on the feeding bottom plate D7 through a cylinder support D30. The cylinder rod of the cylinder D33 is arranged towards the side where the insulating paper tape D15 passes around the driving wheel D39. A driven wheel D42 is installed on the cylinder rod of the cylinder D33 through a rotating shaft D40 and a second bearing D41. The driving wheel D39 and the driven wheel D42 are in contact with each other, and the insulating paper tape D15 passes through the contact surface between the driving wheel D39 and the driven wheel D42.

[0065] As Figure 12 and Figure 14 shown, in the specific implementation, a tension pulley D29 is also provided, and the tension pulley D29 contacts and presses tightly on the synchronous belt D28.

[0066] In specific implementation, the driving wheel D39 is installed on the feeding bottom plate D7 through the bearing plate D34, the gasket D37, and the first bearing D38. Both ends of the driving wheel D39 are rotatably installed between two bearing plates D34 through the first bearings D38 respectively. The two bearing plates D34 are also fixedly connected through the support column D35. One bearing plate D34 is fixed on the feeding bottom plate D7, and a gasket D37 for axial positioning and limiting is installed at the end of the driving wheel D39 where the other bearing plate D34 is located.

[0067] On the cylinder rod of the cylinder D33, a driven wheel D42 is installed through the pressure wheel plate D36, the rotating shaft D40, and the second bearing D41. The pressure wheel plate D36 is fixed on the cylinder rod of the cylinder D33, and the driven wheel D42 is hingedly installed on the pressure wheel plate D36 through the rotating shaft D40. Specifically, the driven wheel D42 and the rotating shaft D40 are coaxially fixedly connected, and both ends of the shaft D40 are rotatably installed and connected to the pressure wheel plate D36 through the second bearings D41.

[0068] As Figure 15 shown, both the driving wheel D39 and the driven wheel D42 are gears with tooth structures and are meshed with each other.

[0069] As Figure 16 and Figure 17 shown, the paper peeling mechanism D5 includes a connecting plate D43, a label sensor D46, a paper peeling knife D47, and a limiting plate D48; the connecting plate D43 is fixedly installed on the feeding bottom plate D7, the paper peeling knife D47 is fixed on the lower side of the connecting plate D43 through the cushion plate D44, two limiting plates D48 are provided on the paper peeling knife D47, the insulating paper tape D15 winds around the bottom end of the paper peeling knife D47, the bottom end of the paper peeling knife D47 is set as an inclined knife surface for assisting in peeling the insulating paper from the insulating paper tape, the label sensor D46 is located above the paper peeling knife D47 and is fixed on the side of the connecting plate D43 through the sensor bracket D45, and the label sensor D46 is used to detect the positions of each insulating paper on the insulating paper tape D15 through transparency to perform step feeding and positioning;

[0070] As Figure 18 and Figure 19As shown in the figure, the waste material collecting belt mechanism D6 includes a second circular pulley D50, a waste material collecting rotating shaft D51, a waste material baffle D54, a reel D55, a reel slot bar D56 and a slot bar fixing bracket D57; the waste material collecting rotating shaft D51 is rotatably installed on the feeding bottom plate D7 through a second pedestal bearing D52. One end of the waste material collecting rotating shaft D51 is coaxially and fixedly connected with a second circular pulley D50. The second circular pulley D50 and the first circular pulley D31 of the tape driving mechanism D4 are connected through the second belt transmission pair of the circular belt D49. The other end of the waste material collecting rotating shaft D51 is fixedly sleeved with a waste material baffle D54 and a reel D55 through a spacer ring D53. Both the waste material baffle D54 and the reel D55 are fixedly sleeved and connected to the waste material collecting rotating shaft D51. The waste material baffle D54 is located inside, and the reel D55 is located outside. The reel D55 is used for winding the insulating paper tape D15 for recycling. The reel D55 is clamped with a reel slot bar D56 and a slot bar fixing bracket D57 for facilitating the tensioning and removal of the insulating paper tape D15.

[0071] As Figure 24 As shown in the figure, on both sides of the outer peripheral surface of the reel D55, there is a strip-shaped groove along the axial direction. The reel slot bar D56 is U-shaped. The two branch parts of the U-shape of the reel slot bar D56 are respectively clamped in the strip-shaped grooves on both sides of the outer peripheral surface of the reel D55. And on the outer sides of the two branch parts of the U-shape of the reel slot bar D56 itself, there are also strip-shaped grooves along the axial direction. The groove depth of the strip-shaped groove gradually increases from the outer end to the inner end of the reel D55 along the axial direction; the main body of the slot bar fixing bracket D57 is also U-shaped. The slot bar fixing bracket D57 has elasticity, and both ends are respectively embedded in the strip-shaped grooves along the two branch parts of the reel D55 to form the same taper as the gradually changing groove depth of the strip-shaped groove. In this case, when a roll of insulating paper tape D15 has been completely wound onto the reel D55 to form a waste material roll, after squeezing the two ends of the slot bar fixing bracket D57 inward and pulling it out from between the insulating paper tape D15 and the reel D55, and then pulling out the reel slot bar D56, the waste material roll can be taken out. The inclined taper design of the cooperation between the slot bar fixing bracket D57 and the reel slot bar D56 can simultaneously achieve two aspects of effective clamping and convenient removal.

[0072] The insulating paper tape D15 is first wound on the tape roll sleeve D20. The other end of the insulating paper tape D15 passes through each idler wheel D14, between the driving wheel D39 and the driven wheel D42 in sequence, and then passes under the bottom of the paper peeling knife D47 and is wound on the reel D55. The servo motor D25 rotates, and drives the driving wheel D39 and the waste material collecting rotating shaft D51 to rotate through the first belt transmission pair and the second belt transmission pair respectively. The rotation of the driving wheel D39 drives the insulating paper tape D15 clamped between the driving wheel D39 and the driven wheel D42 to be conveyed and moved. The rotation of the waste material collecting rotating shaft D51 drives the insulating paper tape D15 to be wound into the reel D55.

[0073] As Figure 14And Figure 22 As shown, the first belt transmission pair and the second belt transmission pair are both connected to the driving wheel D39, and are both driven by the servo motor D25 to work, sharing a driving power source.

[0074] As Figure 20 shown, the insulating paper pasting mechanism E0 includes a bracket E1, a lead screw module E2, a module connector plate E3, a vacuum generator E4, a slide cylinder E6, a cylinder connecting plate E7, a rotary cylinder E8, a suction head bottom plate E9, a foam fixing plate E10, and a foam suction head E11; the bracket E1 remains fixed, the lead screw module E2 is installed on the bracket E1 and arranged vertically, the lead screw module E2 has a guide rail and a slider, and the slider moves vertically on the guide rail. The module connector plate E3 is fixed to the slider of the lead screw module E2, and the vacuum generator E4 and the slide cylinder E6 are both fixedly installed on the module connector plate E3. The vacuum generator E4 is also provided with a vacuum pressure switch E5 for adjusting the vacuum pressure.

[0075] The rod of the slide cylinder E6 is horizontally oriented towards the insulating paper tape on the insulating paper feeding mechanism D0 beside the paper peeling mechanism D5, and the rod of the slide cylinder E6 is fixedly connected to the cylinder connecting plate E7. A rotary cylinder E8 is installed on the cylinder connecting plate E7, the rotating end of the rotary cylinder E8 is fixedly connected to the suction head bottom plate E9, a foam fixing plate E10 is fixedly installed on the suction head bottom plate E9, a foam suction head E11 for sucking insulating paper is arranged on the foam fixing plate E10, and the foam suction head E11 and the vacuum generator E4 are connected through an air pipe / air passage.

[0076] The lead screw module E2 drives the overall up and down movement of the module connector plate E3 and the vacuum generator E4 and the slide cylinder E6 thereon, the slide cylinder E6 drives the cylinder connecting plate E7 and the rotary cylinder E8 thereon to move horizontally close to or away from the insulating paper, and the rotary cylinder E8 drives the overall rotation of the foam fixing plate E10 and the foam suction head E11 thereon around the horizontal axis.

[0077] As Figure 23 shown, the foam fixing plate E10 is internally provided with a cavity, and through holes communicating with each other are opened on the contact surface between the cavity of the foam fixing plate E10 and the foam suction head E11. The vacuum generator E4 is connected to the cavity of the foam fixing plate E10, and the vacuum generator E4 evacuates the cavity to suck the insulating paper on the insulating paper tape through the foam suction head E11.

[0078] As Figure 21As shown, the insulating paper detection mechanism F0 includes a support F1, a sensor support rod F2, a sensor fixing plate F3, and a color mark sensor F4. The support F1 is kept fixed. The lower end of the sensor support rod F2 is fixed on the support F1. The color mark sensor F4 is fixedly installed at the upper end of the sensor support rod F2 through the sensor fixing plate F3. The color mark sensor F4 is oriented towards the insulating paper strip for detecting the position of the insulating paper on the insulating paper strip, and then controlling the stepping operation of the servo motor D25 of the strip driving mechanism D4, that is, detecting that an insulating paper moves past and then moving once again, and each time stepping and moving by the height dimension of one insulating paper.

[0079] In specific implementation, insulating papers A2 are distributed at equal intervals one by one on the strip bottom film to form an insulating paper strip D15. The insulating paper strip D15 is a reel-shaped strip and is installed between two strip reel baffles D8 and axially fixed by a strip reel fixing ring D16. Pulling the insulating paper strip D15 can drive the strip reel D17 to rotate. The strip reel D17 passes through the pedestal bearing D18 and is connected to the tensioner D9; in this way, the force for pulling the strip reel can be adjusted through the tensioner to ensure the tension of the strip.

[0080] As Figure 7 shown, the insulating paper strip is pulled out in the direction shown by arrow 1, bypasses the first idler wheel and then bypasses the second idler wheel in the direction shown by arrow 2, then bypasses the third idler wheel in the direction shown by arrow 3, and then bypasses the fourth idler wheel in the direction shown by arrow 4. The strip pressing mechanism D3 is located between the third idler wheel and the fourth idler wheel. The pressing plate D24 is pushed by the strip pressing cylinder D23 to press the insulating paper strip on the strip pressing bottom plate D21 and provide a certain pressing force; after passing through the fourth idler wheel, the insulating paper strip bypasses the fifth idler wheel in the direction shown by arrow 5, and then enters the paper peeling mechanism in the direction shown by arrow 6. The insulating paper strip winds around the tip of the paper peeling knife D47 in the paper peeling mechanism to peel the insulating paper from the strip.

[0081] In the paper peeling mechanism, the insulating paper strip passes through the label sensor D46. The bottom paper of the insulating paper strip is made of transparent PET material, and the label sensor D46 can detect the insulating paper through the bottom paper; the signal change of the insulating paper A2 detected by the label sensor D46 is used to control the stop of the servo motor D25, so as to ensure that only one insulating paper A2 is peeled off each time and control the insulating paper strip to move by the distance of one insulating paper each time.

[0082] In the paper peeling mechanism, two limit plates D48 are distributed on the left and right sides of the insulating paper strip to limit the left and right positions of the strip and prevent the strip from deviating left and right during the discharging process.

[0083] The waste strip from which the insulating paper has been peeled off is from as Figure 7The waste belt bypasses the driving wheel D39 in the direction shown by the arrow 7; the outer rings of both the driving wheel D39 and the driven wheel D42 are of gear structure, and the waste belt passes between the driving wheel D39 and the driven wheel D42. The cylinder D33 extends to press the driven wheel D42 tightly against the driving wheel D39, and the waste belt is firmly pressed through the meshing action of the outer ring gear of the driven wheel D42 pressing tightly against the driving wheel D39.

[0084] The servo motor D25 rotates, drives the driving wheel D39 to rotate through the first synchronous wheel D27, the synchronous belt D28 and the second synchronous wheel D32; the rotation of the driving wheel D39 pulls the waste belt to provide the power for the discharge of the material roll. Then it bypasses the sixth idler wheel in the direction shown by the arrow 8, and finally fixes the waste belt on the reel D55. The front end of the waste collection rotating shaft D51 is equipped with the reel D55, and the rear end is equipped with the second round belt pulley D50; the second round belt pulley D50 is connected to the first round belt pulley D31 installed at the rear end of the driving wheel D39 through the round belt D49, and the connection method is as Figure 22 shown. In this way, while the driving wheel D39 pulls the insulating paper material belt to discharge the material, it can also drive the reel D55 to rotate, so as to achieve the purpose of rewinding the waste belt.

[0085] The vacuum generator E4 converts the incoming air source into vacuum negative pressure, and the vacuum negative pressure is transmitted to the inner cavity of the foam fixing plate E10 through the air pipe. The vacuum pressure switch E5 is used to adjust the size of the vacuum pressure to keep the negative pressure value stable. As Figure 23 shown, the inside of the foam fixing plate E10 is a hollow cavity structure, and several small holes are opened on the surface in contact with the foam suction head E11. These small holes are connected to the openings on the foam suction head E11, so that the vacuum negative pressure in the inner cavity of the foam fixing plate E10 is transmitted to the surface of the foam suction head E11. In this way, when the insulating paper pasting mechanism E0 picks up the insulating paper, it can adsorb the insulating paper on the surface of the foam suction head E11 through the vacuum negative pressure to prevent the insulating paper from falling off.

[0086] The foam suction head E11 is arranged near the inclined knife surface at the bottom end of the paper peeling knife D47, which is convenient for the suction and adsorption operation when the insulating paper is peeled at the inclined knife surface.

[0087] One side of the insulating paper in contact with the bottom film of the material belt of the insulating paper material belt D15 has glue, and the other side has no glue. The side with glue adheres to the bottom film of the insulating paper material belt D15. During operation, the side without glue contacts the foam suction head E11, and the insulating paper pasting mechanism E0 pastes the side with glue onto the stator core A1.

[0088] The specific implementation working process of the present utility model is as follows:

[0089] Before the operation of this mechanism, the insulating paper material roll is installed manually according to the Figure 7 shown running direction of the material belt.

[0090] As Figure 1The stator core A1 shown is fixed on the core water tray B0 and enters the sticker station; then the lifting cylinder C2 retracts, the air gripper C4 closes, and the first gripper C5 and the second gripper C6 clamp the stator core A1; the lifting cylinder C2 extends to lift the stator core A1 to the position for pasting the insulating paper.

[0091] Then the sliding table cylinder E6 extends to push the foam suction head E11 to contact the insulating paper A2, and the vacuum suction starts to suck the insulating paper A2; the lead screw module E2 controls the module connector plate E3 and the vacuum generator E4, the sliding table cylinder E6, etc. on it to move down synchronously with the insulating paper tape. At this time, the bottom film of the insulating paper tape changes the movement direction along the lower edge of the paper peeling knife D47 and moves upward in the direction of the arrow 7 shown, and the edge of the insulating paper on the insulating paper tape will be affected by the inclined knife surface at the bottom end of the paper peeling knife D47 and no longer adhere to the insulating paper tape and extends downward. The vacuum generator E4 drives the foam suction head E11 to suck the insulating paper with the extended edge. The insulating paper is adsorbed on the foam suction head E11 and continues to move down. After the insulating paper tape passes through the inclined knife surface at the bottom end of the paper peeling knife D47, it moves upward, so as to peel the insulating paper A2 from the bottom film of the insulating paper tape. Figure 7 After the insulating paper pasting mechanism E0 peels the insulating paper A2 from the bottom film of the tape, the sliding table cylinder E6 retracts, the rotary cylinder E8 rotates 90°, and the lead screw module E2 continues to drive the module connector plate E3 and the vacuum generator E4, the sliding table cylinder E6, etc. on it to move down to the pasting position, so that the foam suction head E11 is facing the surface of the stator core A1. The sliding table cylinder E6 extends to paste the insulating paper A2 onto the surface of the stator core A1 as shown. The vacuum suction is turned off, the sliding table cylinder E6 retracts, the rotary cylinder E8 rotates 90°, and the lead screw module E2 moves up to the initial position.

[0092] Figure 3 Figure 3 The lifting cylinder C2 retracts, the air gripper C4 opens, and the stator core A1 with the insulating paper pasted is placed back on the core water tray B0. The color mark sensor F4 judges whether there is insulating paper pasted on the stator core A1. If so, the core water tray B0 flows into the next station. If no sticker is detected, this mechanism repeats the above action process to paste another insulating paper on the stator core A1. The colors of the stator core A1 and the insulating paper A2 produced by this mechanism are different, so the color mark sensor F4 is used to detect whether there is insulating paper A2 on the stator core A1.

[0093] During the normal production process, when a roll of insulating paper material is used up, the operator squeezes the slot bar fixing bracket D57 and pulls it out, and then pulls out the reel slot bar D56 to take out the waste roll. As shown, the outer shapes of the slot bar fixing bracket D57 and the reel slot bar D56 are both designed with a taper. Such a design can not only effectively clamp but also facilitate manual removal.

[0094] Figure 24 Figure 24 As shown, the outer shapes of the slot bar fixing bracket D57 and the reel slot bar D56 are both designed with a taper. Such a design can not only effectively clamp but also facilitate manual removal.

Claims

1. A device for pasting insulating paper on the stator core of a block-type motor, characterized in that: The device comprises an iron core clamping mechanism (C0), an insulating paper feeding mechanism (D0), an insulating paper pasting mechanism (E0) and an insulating paper detecting mechanism (F0); an insulating paper pasting mechanism (E0) is arranged on one side of the insulating paper feeding mechanism (D0); an iron core clamping mechanism (C0) and an insulating paper detecting mechanism (F0) are arranged below the insulating paper feeding mechanism (D0) and the insulating paper pasting mechanism (E0); a stator iron core assembly (A0) is loaded on an iron core water flow tray (B0) and transported along an assembly line.

2. The device for applying insulating paper to the stator core of a block-type motor according to claim 1, characterized in that: The iron core clamping mechanism (C0) comprises a cylinder seat (C1), a lifting cylinder (C2), an air gripper mounting plate (C3), an air gripper (C4), a first clamping jaw (C5) and a second clamping jaw (C6); the lifting cylinder (C2) is fixedly mounted on the cylinder seat (C1), the cylinder rod of the lifting cylinder (C2) is arranged vertically upward and an air gripper mounting plate (C3) is fixedly mounted on the upper end, the air gripper (C4) is fixedly mounted on the air gripper mounting plate (C3), and the air gripper (C4) has a first clamping jaw (C5) and a second clamping jaw (C6) which can move horizontally toward or away from each other.

3. The device for applying insulating paper to the stator core of a block-type motor according to claim 1 is characterized in that: The insulating paper feeding mechanism (D0) is mainly composed of six parts, namely, a supporting component (D1), an insulating paper material belt discharging mechanism (D2), a material belt pressing mechanism (D3), a material belt driving mechanism (D4), a paper stripping mechanism (D5) and a waste material belt collecting mechanism (D6); the insulating paper material belt discharging mechanism (D2) is fixedly mounted on the supporting component (D1), and the material belt pressing mechanism (D3), the material belt driving mechanism (D4), the paper stripping mechanism (D5) and the waste material belt collecting mechanism (D6) are all distributed and mounted on the insulating paper material belt discharging mechanism (D2); The insulating paper tape discharging mechanism (D2) is used to wind the insulating paper tape, the tape pressing mechanism (D3) is used to press the insulating paper on the insulating paper tape, the tape driving mechanism (D4) is used to drive the insulating paper tape discharging mechanism (D2) to drive the insulating paper tape wound on the insulating paper tape discharging mechanism (D2) to discharging, the paper stripping mechanism (D5) is used to assist in stripping the insulating paper on the insulating paper tape, and the waste tape collecting mechanism (D6) is used to recycle the stripped insulating paper tape.

4. The device for applying insulating paper to the stator core of a block-type motor according to claim 3 is characterized in that: The insulating paper tape discharging mechanism (D2) comprises a feed bottom plate (D7), a material roll baffle (D8), a tensioner (D9), a material roll base plate (D12), an idler wheel (D14), an insulating paper tape (D15), a material roll shaft (D17) and a material roll sleeve (D20); the feed bottom plate (D7) is fixedly mounted on the supporting component (D1), the material roll base plate (D12) is fixedly mounted on the top of the feed bottom plate (D7), and the tensioner (D9) is mounted on the material roll base plate (D12). The tensioner (D9) is coaxially fixedly connected to the material reel (D17) via a coupling (D19); the material reel (D17) is provided with two material reel baffles (D8) and a material reel sleeve (D20) located between the two material reel baffles (D8); a plurality of idler wheels (D14) are installed on the side and below the material reel (D17); one end of the insulating paper tape (D15) is wound on the material reel sleeve (D20), and the other end is wound around the plurality of idler wheels (D14) and then wound around the waste tape collection mechanism (D6); The material belt driving mechanism (D4) comprises a servo motor (D25), a reducer (D26), a first synchronous wheel (D27), a synchronous belt (D28), a first circular pulley (D31), a second synchronous wheel (D32), a cylinder (D33), a driving wheel (D39) and a driven wheel (D42); the servo motor (D25) and the reducer (D26) are both installed on the feeding bottom plate (D7), the output shaft of the servo motor (D25) is coaxially fixedly connected with the first synchronous wheel (D27) through the reducer (D26), the first synchronous wheel (D27) and the second synchronous wheel (D32) are connected through the first belt transmission pair of the synchronous belt (D28), the second synchronous wheel (D32) and the main wheel (D39) are connected to each other through the first belt transmission pair of the synchronous belt (D28), and the second synchronous wheel (D32) and the main wheel (D39) are connected to each other through the first belt transmission pair of the synchronous belt (D28). The driving wheel (D39) is coaxially fixedly connected, the insulating paper material belt (D15) is wound around the driving wheel (D39), and the driving wheel (D39) is also coaxially fixedly connected with a first round belt pulley (D31), and the first round belt pulley (D31) is used to connect with the waste collection belt mechanism (D6); a cylinder (D33) is provided on the upper side of the driving wheel (D39), and the cylinder (D33) is fixedly installed on the feeding bottom plate (D7) through a cylinder support (D30), and the cylinder rod of the cylinder (D33) is arranged toward the driving wheel (D39), and a driven wheel (D42) is installed on the cylinder rod of the cylinder (D33), and the driving wheel (D39) and the driven wheel (D42) are in contact with each other and the insulating paper material belt (D15) passes through the contact surface; The paper stripping mechanism (D5) comprises a connecting plate (D43), a label sensor (D46), a paper stripping knife (D47) and a limiting plate (D48); the connecting plate (D43) is fixedly mounted on the feeding bottom plate (D7); the paper stripping knife (D47) is fixed to the lower side of the connecting plate (D43) through a pad (D44); two limiting plates (D48) are arranged on the paper stripping knife (D47); the insulating paper strip (D15) is wound around the bottom end of the paper stripping knife (D47); the bottom end of the paper stripping knife (D47) is arranged as an inclined knife surface for assisting in stripping insulating paper from the insulating paper strip; the label sensor (D46) is located above the paper stripping knife (D47) and is fixed to the side of the connecting plate (D43) through a sensor bracket (D45); The waste collecting belt mechanism (D6) comprises a second circular belt pulley (D50), a waste collecting rotating shaft (D51), a waste baffle (D54), a reel (D55), a reel clamping groove strip (D56) and a clamping groove strip fixing bracket (D57); the waste collecting rotating shaft (D51) is rotatably mounted on the feeding bottom plate (D7) through a second belt seat bearing (D52), one end of the waste collecting rotating shaft (D51) is coaxially fixedly connected with the second circular belt pulley (D50), and the second circular belt pulley (D55) is fixedly connected to the feeding bottom plate (D7). 50) and the first circular pulley (D31) of the material belt driving mechanism (D4) are connected through the second belt transmission pair of the circular belt (D49); the other end of the waste collecting shaft (D51) is fixedly sleeved with a waste baffle (D54) and a reel (D55); the reel (D55) is used to wind the insulating paper material belt (D15); the reel (D55) is clamped with a reel slot strip (D56) and a slot strip fixing bracket (D57) for tensioning and removing the insulating paper material belt (D15).

5. The device for applying insulating paper to the stator core of a block-type motor according to claim 4, characterized in that: The pressing belt mechanism (D3) comprises a pressing belt bottom plate (D21), a cylinder base (D22), a pressing belt cylinder (D23) and a pressing plate (D24); the pressing belt bottom plate (D21) is fixed on the feeding bottom plate (D7), the pressing belt cylinder (D23) is fixedly installed on the side of the pressing belt bottom plate (D21) through the cylinder base (D22), the cylinder rod of the pressing belt cylinder (D23) is arranged in a directional manner and the end of the cylinder rod is fixedly connected to the upper pressing plate (D24) of the two pressing plates (D24), the two pressing plates (D24) are respectively located on the upper and lower sides of the insulating paper material belt (D15), and the lower pressing plate (D24) of the two pressing plates (D24) is fixed to the pressing belt bottom plate (D21).

6. The device for applying insulating paper to the stator core of a block-type motor according to claim 4, characterized in that: The driving wheel (D39) and the driven wheel (D42) are both gears with tooth structures and mesh with each other.

7. The device for applying insulating paper to the stator core of a block-type motor according to claim 4, characterized in that: Both sides of the outer peripheral surface of the reel (D55) are provided with an axial strip groove, the reel slot strip (D56) is U-shaped, and the two branches of the U-shaped reel slot strip (D56) are respectively clamped in the strip grooves on both sides of the outer peripheral surface of the reel (D55), and the reel slot strip (D56) is also provided with axial strip grooves on the outside of the two branches of its own U-shape, and the groove depth of the strip groove gradually increases from the outer end to the inner end along the axial direction of the reel (D55); the slot strip fixing bracket (D57) is elastic, and the two ends are respectively embedded in the strip grooves of the two branches of the strip groove along the reel (D55).

8. The device for applying insulating paper to the stator core of a block-type motor according to claim 4, characterized in that: The first belt transmission pair and the second belt transmission pair are both connected to the driving wheel (D39), are both driven by the servo motor (D25), and share a driving power.

9. The device for applying insulating paper to the stator core of a block-type motor according to claim 1, characterized in that: The insulating paper pasting mechanism (E0) comprises a bracket (E1), a screw module (E2), a module connector plate (E3), a vacuum generator (E4), a slide cylinder (E6), a cylinder connecting plate (E7), a rotary cylinder (E8), a suction head bottom plate (E9), a foam fixing plate (E10) and a foam suction head (E11); the screw module (E2) is mounted on the bracket (E1) and arranged vertically, the module connector plate (E3) is fixed on the slider of the screw module (E2), and the vacuum generator (E4) and the slide cylinder (E6) are both fixedly mounted on the module connector plate (E3). On the upper part, the cylinder rod of the slide cylinder (E6) is arranged horizontally toward the insulating paper material belt on the insulating paper feeding mechanism (D0), and the cylinder rod of the slide cylinder (E6) is fixedly connected to the cylinder connecting plate (E7), a rotating cylinder (E8) is installed on the cylinder connecting plate (E7), the rotating end of the rotating cylinder (E8) is fixedly connected to the suction head bottom plate (E9), a foam fixing plate (E10) is fixedly installed on the suction head bottom plate (E9), a foam suction head (E11) for sucking insulating paper is arranged on the foam fixing plate (E10), and the foam suction head (E11) and the vacuum generator (E4) are connected through an air pipe.

10. The device for applying insulating paper to the stator core of a block-type motor according to claim 1, characterized in that: The insulating paper detection mechanism (F0) comprises a support (F1), a sensor support rod (F2), a sensor fixing plate (F3) and a color mark sensor (F4); the lower end of the sensor support rod (F2) is fixed on the support (F1); the color mark sensor (F4) is fixedly mounted on the upper end of the sensor support rod (F2) through the sensor fixing plate (F3); and the color mark sensor (F4) is arranged toward the insulating paper strip.

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