Automatic threading equipment for venetian blinds

Abstract

The present invention discloses an automatic threading device for venetian blinds in the field of venetian blinds processing equipment, including a threading device, on which a plurality of threading components are arranged, wherein: a sliding servo motor drives the motor rotating gear to rotate, thereby causing the threading slider to slide along the left and right slide rails, a lifting servo motor drives the lifting support plate to slide up and down through the lifting shaft, lifting gear and lifting rack in turn, a wire-digging cylinder is connected to a wire-digging block and drives the wire-digging block to slide left and right, the blinds are located on the upper side of the lifting support plate and the wire-digging block, and a ladder rope is hung on a blinds bracket after passing through the wire-digging block. The present invention can realize the automatic unwinding, arc pressing, punching, slicing and ladder rope threading processes of the blinds, and can cooperate with the manual automatic rope threading process, thereby realizing a highly automated process for the production of blinds, greatly saving labor costs, and improving production efficiency and processing accuracy.

Description

Technical Field

[0001] The invention relates to the field of venetian blind slat processing equipment, in particular to an automatic threading equipment for venetian blind slats. Background Art

[0002] With the improvement of the quality of life, the application of venetian blinds is increasing. The venetian blinds in venetian blinds are retracted and folded by ladder ropes. Therefore, the production process of venetian blinds is indispensable for the threading of ladder ropes. Traditionally, ladder ropes and ropes are threaded manually, which not only slows down the processing speed, but also increases the labor intensity of workers and easily affects the production quality of venetian blinds.

[0003] There are some devices on the market that can automatically thread the ladder cords of venetian blinds. However, due to the different sizes of various venetian blinds, the positions of the holes on the blinds are also different. These devices cannot be automatically adjusted and cannot adapt to the application of various models and sizes of venetian blinds on the market. At the same time, the existing automatic threading equipment cannot realize the threading process of the ladder cord and the pull cord being staggered left and right, or it is difficult to accurately misalign the ladder cord left and right, which affects the normal use of the venetian blinds and greatly affects the aesthetics of the venetian blinds.

[0004] The above defects are worth solving. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides an automatic threading device for venetian blinds.

[0006] The technical solution of the present invention is as follows:

[0007] An automatic threading device for venetian blinds, comprising a threading device, the threading device comprising a threading frame, a threading profile located above the threading frame, and a plurality of threading assemblies sleeved on the threading profile, characterized in that the threading device also comprises a lifting servo motor, left and right slide rails, and left and right racks;

[0008] The threading assembly includes a threading base plate, a curtain plate bracket, a threading slider, a sliding servo motor, a lifting gear, a lifting support plate, a threading cylinder and a threading block:

[0009] The curtain plate bracket and the threading slider are both fixedly connected to the threading bottom plate, the curtain plate bracket is provided with a supporting plate, the threading slider is sleeved on the left and right slide rails, the output end of the sliding servo motor is meshed and connected with the left and right racks through the motor rotating gear, the sliding servo motor drives the motor rotating gear to rotate, and then the threading slider slides along the left and right slide rails;

[0010] The lifting gear is fixed to the threading base plate through a lifting bearing, the lifting gear is meshed with the lifting rack, the upper end of the lifting rack passes through the threading base plate and is fixedly connected to the lifting support plate, the lifting gear is buckled with the lifting shaft, and the lifting shaft is fixed to the output shaft of the lifting servo motor;

[0011] The curtain piece is located on the upper side of the lifting support plate and the wire-pulling block, the wire-pulling cylinder is connected to the wire-pulling block and drives the wire-pulling block to slide left and right, and the ladder rope passes around the wire-pulling block and is hung on the curtain piece bracket.

[0012] The present invention according to the above scheme is characterized in that the threading device also includes a feeding device and an arc pressing and cutting device. The curtain pieces on the feeding device are unwound, and after arc pressing, punching and slicing by the arc pressing and cutting device, they enter the threading device.

[0013] Furthermore, the discharge device includes a discharge box and a material tray arranged on the discharge box, and the curtain strips are rolled up on the material tray; a mask is provided on the lower side of the material tray, and the curtain strips after discharge are bent in the mask and then enter the arc pressing and punching device.

[0014] Furthermore, a first optical fiber sensor is provided on the side wall of the mask. The first optical fiber sensor is located in the middle of the side wall of the mask.

[0015] Furthermore, the arc pressing punching device comprises an arc pressing punching machine box and an arc pressing component, a punching component and a slicing component arranged in the arc pressing punching machine box:

[0016] The arc pressing assembly comprises an arc pressing upper wheel and an arc pressing lower wheel corresponding to upper and lower positions, the side surface of the arc pressing upper wheel is provided with an arc pressing groove with an inward concave shape, and the side surface of the arc pressing lower wheel is provided with an arc pressing protrusion corresponding to the arc pressing groove; the upper and lower film feeding wheels and the lower film feeding wheels corresponding to upper and lower positions are provided behind the upper and lower arc pressing wheels, and the lower film feeding wheel is connected to a film feeding servo motor;

[0017] The punching assembly comprises a punching cylinder and a punching plate, and the lower end of the punching cylinder is connected to the punching needle;

[0018] The slicing assembly comprises a slicing cylinder and a slicing plate, and the lower end of the slicing cylinder is connected to the cutter.

[0019] Furthermore, guide wheels are provided on the front sides of the arc-pressing upper wheel and the arc-pressing lower wheel, and on the front sides of the film-feeding upper wheel and the film-feeding lower wheel, and correction wheel groups are provided on the rear sides of the arc-pressing upper wheel and the arc-pressing lower wheel.

[0020] A first proximity switch is provided between the correction wheel set and the guide wheel located at the rear side thereof.

[0021] Furthermore, the arc pressure upper wheel and the film feeding upper wheel are both fixed on the machine head plate through an adjusting component, and the adjusting component includes an adjustable slider and a slider shaft, the arc pressure upper wheel or the film feeding upper wheel is fixed on the adjustable slider, and the adjustable slider slides up and down along the slider shaft, and the slider shaft is arranged on the machine head plate.

[0022] Furthermore, the arc pressure upper wheel is arranged on the head plate through an arc pressure wheel plate, and the arc pressure wheel plate is provided with a transverse arc pressure wheel plate slide groove, the front end of the arc pressure screw nut is sleeved in the arc pressure wheel plate slide groove, and the rear end thereof is sleeved on the arc pressure screw in the vertical direction, and the arc pressure screw is fixed on the head plate.

[0023] Furthermore, the punching plate includes a punching upper plate and a punching lower plate, the slicing plate includes a slicing upper plate and a slicing lower plate, and the punching lower plate and the slicing lower plate are both fixed on the mold support plate.

[0024] Furthermore, the punching lower plate and the punching upper plate are provided with corresponding punching guide grooves, and the curtain pieces after arc pressing pass through the punching guide grooves, and the punching lower plate and the punching upper plate are provided with punching holes penetrating in the vertical direction.

[0025] Furthermore, the slicing lower plate and the slicing upper plate are provided with corresponding slicing guide holes penetrating up and down.

[0026] The present invention according to the above scheme is characterized in that the supporting piece includes an upper supporting piece and a lower supporting piece, the lower supporting piece is located on the upper side of the lifting support plate, and the upper supporting piece and the lower supporting piece are both hinged to the curtain plate bracket.

[0027] The present invention according to the above scheme is characterized in that a protruding clamping strip is provided on the inner side of the motor rotating gear, and a concave clamping groove is provided on the lifting shaft, and the clamping strip is interlocked with the clamping groove so that the motor rotating gear is engaged and connected with the lifting shaft.

[0028] The present invention according to the above scheme is characterized in that the motor rotation gear is a left-handed gear.

[0029] The present invention according to the above scheme is characterized in that the upper end of the lifting rack is fixedly connected to the lifting frame, the lifting support plate and the wire shifting cylinder are fixed at the front end of the lifting frame, and when the lifting rack slides up and down, it drives the lifting frame, the lifting support plate, the wire shifting cylinder and the wire shifting block to slide up and down.

[0030] Furthermore, a second optical fiber sensor is provided on the side of the lifting frame.

[0031] The present invention according to the above scheme is characterized in that a second proximity switch is provided on the side of the curtain plate bracket, and the second proximity switch is located below the supporting plate and corresponds to the position where the lifting support plate slides to the lowest end.

[0032] The present invention according to the above scheme is characterized in that a threading winding wheel group is provided below the lifting support plate, and the ladder rope passes around the threading winding wheel group and then reaches the wire shifting block.

[0033] The present invention according to the above scheme is characterized in that a pull rope rod is further provided on the side of the curtain plate bracket, one end of the pull rope rod is connected to the pull rope cylinder, and the other end thereof is provided with a pull rope hook.

[0034] Furthermore, the position of the pull rope rod corresponds to the central hollow position of the lifting support plate.

[0035] The first optical fiber sensor, the display, the sheet feeding servo motor, the first proximity switch, the punching cylinder, the slicing cylinder, the lifting servo motor, the sliding servo motor, the second optical fiber sensor, the wire pulling cylinder, and the second proximity switch are all connected to the controller.

[0036] The beneficial effect of the present invention according to the above scheme is that the present invention can realize the automatic unwinding, arc pressing, punching, slicing and ladder rope threading processes of the curtain pieces, and can cooperate with the manual automatic threading and pulling rope process, thereby realizing a highly automated process for the production of venetian blinds, greatly saving labor costs, and improving production efficiency and processing accuracy; the present invention can automatically adjust the positions of each threading component, thereby adapting to the threading process of curtain pieces of different sizes, so that the entire equipment can be widely used; after completing the ladder rope threading process of a curtain piece, the present invention moves it up to the support piece for support, so as to avoid affecting the subsequent processing process of the curtain piece; the present invention can also realize the left and right misalignment of the ladder rope, ensuring that it can cooperate with the pull rope, ensuring the close combination of the ladder pull rope, which can not only ensure the connection stability of the venetian blind, but also ensure its aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the structure of the present invention.

[0038] Figure 2 Schematic diagram of the discharge device.

[0039] Figure 3 Schematic diagram of the arc pressure punching device.

[0040] Figure 4 It is a schematic diagram of the structure of the arc punching machine head.

[0041] Figure 5 Schematic diagram of the structure of the arc pressing punching machine head without the arc pressing wheel.

[0042] Figure 6 This is a schematic diagram of the back structure of the arc-pressing punching and shearing machine head.

[0043] Figure 7 Exploded view of the punch assembly.

[0044] Figure 8 This is a schematic diagram of the structure of the threading device after removing the protective shell.

[0045] Fig. 9 This is a schematic diagram of the structure of the threading device from another perspective after the protective shell is removed.

[0046] Figure 10-12 Schematic diagram of the structure of the threading component from different perspectives.

[0047] Fig.13 , Fig.14 Schematic diagram of different viewing angles of the threading assembly after removing the protective cover.

[0048] In the figure, 100, a material discharging device; 110, a material discharging chassis; 120, a material tray; 130, a mask; 140, a first optical fiber sensor;

[0049] 200, arc pressing punching device; 210, arc pressing punching machine box; 220, display; 230, arc pressing punching machine head; 231, machine head plate; 2311, arc pressing wheel plate; 2312, arc pressing wheel plate slide; 2313, arc pressing screw rod nut; 2314, arc pressing screw rod; 2315, sheet feeding servo motor; 2316, adjustable slider; 2317, slider shaft; 232, guide wheel; 2331, arc pressing upper wheel; 2332, arc pressing lower wheel; 234, correction wheel group; 235, first proximity switch; 2361, upper sheet feeding wheel; 2362, lower sheet feeding wheel; 237, mold support plate; 238, punching assembly; 2381, punching cylinder; 2382, punching needle; 2383, upper punching plate; 2384, lower punching plate; 2385, punching guide groove; 239, slicing assembly; 2391, slicing cylinder; 2392, cutter; 2393, upper slicing plate; 2394, lower slicing plate; 2395, slicing guide hole;

[0050] 300, threading device; 311, threading rack; 312, threading profile; 313, left and right slide rails; 314, left and right racks; 320, lifting servo motor; 321, reducer; 322, lifting shaft; 330, threading assembly; 3301, protective cover; 3302, threading bottom plate; 3303, curtain bracket; 3304, threading slider; 3310, sliding servo motor; 3311, Motor rotating gear; 3321, lifting gear; 3322, lifting bearing; 3323, clamping strip; 3330, lifting rack; 3340, lifting support plate; 3341, lifting frame; 3342, second optical fiber sensor; 3351, lower support plate; 3352, upper support plate; 3361, wire-switching cylinder; 3362, wire-switching block; 3370, second proximity switch; 3380, threading and winding wheel assembly;

[0051] 400. Curtain panels. DETAILED DESCRIPTION

[0052] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0053] like Figure 1 As shown, an automatic threading device for blind slats, the threading device 300 further includes a feeding device 100, an arc pressing punching device 200 and a threading device 300, the blind slats 400 on the feeding device 100 are unwound, and after arc pressing, punching and slicing by the arc pressing punching device 200, enter the threading device 300. The feeding device 100 and the arc pressing punching device 200 can be fixed to each other or separated from each other, and in this embodiment, the two are separated from each other.

[0054] 1. Discharging device 100

[0055] like Figure 2 As shown, the unloading device 100 includes a unloading machine box 110 and a material tray 120 arranged on the unloading machine box 110, and the curtain piece is rolled up on the material tray 120; a mask 130 is provided on the lower side of the material tray 120, and the curtain piece 400 after unloading is bent in the mask 130 and then enters the arc pressing punching device 200.

[0056] A first optical fiber sensor 140 is provided on the side wall of the mask 130. Preferably, the first optical fiber sensor 140 is located in the middle of the side wall of the mask 130. The first optical fiber sensor 140 senses the length of the bending buffer of the curtain piece 400. If the first optical fiber sensor 140 does not sense the bent curtain piece 400, the material tray 120 is controlled to discharge the material, thereby avoiding the curtain piece 400 from being pulled and damaged by entering between the arc pressing punching device 200 and the material tray 120.

[0057] 2. Arc pressing punching device 200

[0058] like Figure 3As shown, the arc pressing punching device 200 includes an arc pressing punching machine box 210 and an arc pressing punching machine head 230 arranged on the arc pressing punching machine box 210. A display 220 is provided on the arc pressing punching machine box 210. The display 220 is connected to the controller. The entire process of discharging, arc pressing, punching, slicing and threading is monitored and controlled through the display 220.

[0059] like Figures 4 to 6 As shown, the arc pressing punching and cutting machine head 230 is provided with an arc pressing component, a punching component 238 and a slicing component 239.

[0060] 1. Arc pressing components

[0061] The arc pressing assembly includes an arc pressing upper wheel 2331 and an arc pressing lower wheel 2332 corresponding to each other in upper and lower positions. The side of the arc pressing upper wheel 2331 is provided with an inwardly concave arc pressing groove, and the side of the arc pressing lower wheel 2332 is provided with an arc pressing protrusion corresponding to the arc pressing groove; the upper and lower film feeding wheels 2361 and the lower film feeding wheels 2362 corresponding to each other in upper and lower positions are provided behind the upper and lower arc pressing wheels 2331 and 2332, and the upper film feeding wheel 2361 is connected to the film feeding servo motor 2315. In the process of the upper and lower film feeding wheels 2361 and 2362 driving the curtain sheet 400 to move forward, the upper and lower arc pressing wheels 2331 and the lower arc pressing wheels 2332 press the straight curtain sheet 400 into an arc.

[0062] In this embodiment, the arc pressing upper wheel 2331 is arranged on the machine head plate 231 through the arc pressing wheel plate 2311. The arc pressing wheel plate 2311 is provided with a transverse arc pressing wheel plate groove 2312. The front end of the arc pressing screw nut 2313 is sleeved in the arc pressing wheel plate groove 2312, and the rear end thereof is sleeved on the vertical arc pressing screw 2314. The arc pressing screw 2314 is fixed on the machine head plate 231.

[0063] In order to ensure the installation and adjustment of the curtain sheet 400, the spacing between the arc-pressing upper wheel 2331 and the arc-pressing lower wheel 2332, and the spacing between the film-feeding upper wheel 2361 and the film-feeding lower wheel 2362 are adjustable. Specifically, the arc-pressing upper wheel 2331 and the film-feeding upper wheel 2361 are fixed on the machine head plate 231 / arc-pressing wheel plate 2311 through an adjustment component, and the adjustment component includes an adjustable slider 2316 and a slider shaft 2317. The arc-pressing upper wheel 2331 or the film-feeding upper wheel 2361 is fixed on the adjustable slider 2316, and the adjustable slider 2316 slides up and down along the slider shaft 2317, and the slider shaft 2317 is arranged on the machine head plate 231.

[0064] Preferably, the front sides of the arc pressing upper wheel 2331 and the arc pressing lower wheel 2332, and the front sides of the sheet feeding upper wheel 2361 and the sheet feeding lower wheel 2362 are all provided with guide wheels 232. The guide wheels 232 guide the curtain sheet 400 after unwinding and arc pressing, so as to ensure that the curtain sheet 400 undergoing arc pressing and feeding is straight, and avoid bending to affect the quality of the curtain sheet 400; the rear sides of the arc pressing upper wheel 2331 and the arc pressing lower wheel 2332 are provided with a correction wheel group 234, and a first proximity switch 235 is provided between the correction wheel group 234 and the guide wheel 232 located at the rear side thereof, and the curtain sheet 400 is flattened by the first proximity switch 235 and the correction wheel group 234, so as to ensure that the subsequent processes proceed normally, thereby ensuring the processing effect and processing efficiency of the curtain sheet 400.

[0065] 2. Punching assembly 238

[0066] like Figure 7 As shown, the punching assembly 238 includes a punching cylinder 2381 and a punching plate, and the lower end of the punching cylinder 2381 is connected to the punching needle 2382. Specifically:

[0067] The punching plate includes a punching upper plate 2383 and a punching lower plate 2384, and the punching lower plate 2384 is fixed on the mold support plate 237. The punching lower plate 2384 and the punching upper plate 2383 are provided with corresponding punching guide grooves 2385, and the curtain piece 400 after arc pressing passes through the punching guide grooves 2385, and the punching lower plate 2384 and the punching upper plate 2383 are provided with punching holes penetrating in the vertical direction.

[0068] 3. Slice Component 239

[0069] like Figure 8 As shown, the slicing assembly 239 includes a slicing cylinder 2391 and a slicing plate, and the lower end of the slicing cylinder 2391 is connected to the cutter 2392. Specifically:

[0070] The slicing plate includes an upper slicing plate 2393 and a lower slicing plate 2394. The lower slicing plate 2394 is fixed on the mold supporting plate 237. The lower slicing plate 2394 and the upper slicing plate 2393 are provided with corresponding slicing guide holes 2395 that penetrate up and down.

[0071] 3. Threading device 300

[0072] like Figure 8 , Fig. 9 As shown, the threading device 300 includes a threading frame 311 and a driving component located on the side of the threading frame 311. A threading profile 312, left and right slide rails 313 and left and right racks 314 are horizontally arranged above the threading frame 311, and a plurality of threading components 330 are sleeved on the threading profile 312.

[0073] By adjusting the distance between each threading assembly 330, threading of curtain pieces 400 with different perforation distances can be achieved. The driving component includes a lifting servo motor 320, and a reducer 321 is provided at the output end of the lifting servo motor 320. The output end of the reducer 321 is connected to a lifting shaft 322, and a concave card groove is provided on the side of the lifting shaft 322. The lifting of the curtain pieces 400 in each threading assembly 330 is achieved through the driving component.

[0074] like Figures 10 to 14 As shown, the threading assembly 330 includes a threading base plate 3302, a curtain plate bracket 3303, a threading slider 3304, a sliding servo motor 3310, a lifting gear 3321, a lifting support plate 3340, a threading cylinder 3361 and a threading block 3362, and each gear is hidden in the protective cover 3301. The curtain plate 400 is located on the upper side of the lifting support plate 3340 and the threading block 3362. The threading cylinder 3361 is connected to the threading block 3362 and drives the threading block 3362 to slide left and right. The ladder rope passes around the threading block 3362 and is suspended on the curtain plate bracket 3303. Preferably, a threading reel 3380 is provided below the lifting support plate 3340, and the ladder rope passes around the threading reel 3380 and reaches the threading block 3362.

[0075] The threading slider 3304 is fixedly connected to the threading base plate 3302, and the threading slider 3304 is sleeved on the left and right slide rails 313. The output end of the sliding servo motor 3310 is meshed and connected with the left and right racks 314 through the motor rotating gear 3311. The sliding servo motor 3310 drives the motor rotating gear 3311 to rotate, thereby causing the threading slider 3304 to slide along the left and right slide rails 313.

[0076] The curtain bracket 3303 is fixedly connected to the threading bottom plate 3302, and a supporting piece is provided on the curtain bracket 3303. The supporting piece in this embodiment includes an upper supporting piece 3352 and a lower supporting piece 3351, and the lower supporting piece 3351 is located on the upper side of the lifting support plate 3340, and the upper supporting piece 3352 and the lower supporting piece 3351 are both hinged to the curtain bracket 3303. The curtain 400 is supported by each supporting piece to ensure that the curtain 400 located at the lower side of the supporting piece can be threaded normally, and at the same time, it is convenient for the left and right misalignment of the lifting rope between two adjacent curtain slats 400.

[0077] The lifting gear 3321 is fixed on the threading base plate 3302 through the lifting bearing 3322, the lifting gear 3321 is meshed with the lifting rack 3330, the upper end of the lifting rack 3330 passes through the threading base plate 3302 and is fixedly connected to the lifting support plate 3340, and the lifting gear 3321 is buckled with the lifting shaft 322. Preferably, the inner side of the motor rotating gear 3311 is provided with a protruding clamping strip 3323, and the clamping strip 3323 is buckled with the clamping groove on the side of the lifting shaft 322 so that the motor rotating gear 3311 is buckled with the lifting shaft 322, thereby ensuring that the motor rotating gear 3311 and the lifting shaft 322 rotate synchronously. Preferably, the motor rotating gear 3311 is a left-handed gear, and correspondingly, the left and right racks 314 are left-handed racks. The left-handed gear and the left-handed rack cooperate with each other to avoid relative sliding between the two.

[0078] In this embodiment, the upper end of the lifting rack 3330 is fixedly connected to the lifting frame 3341, and the lifting support plate 3340 and the wire shifting cylinder 3361 are fixed at the front end of the lifting frame 3341. When the lifting rack 3330 slides up and down, it drives the lifting frame 3341, the lifting support plate 3340, the wire shifting cylinder 3361 and the wire shifting block 3362 to slide up and down. When the ladder rope of a curtain piece 400 is threaded, the lifting servo motor 320 drives the lifting shaft 322 to rotate, and the lifting gear 3321 rotates accordingly, thereby driving the lifting rack 3330 to slide upward; the upper end of the lifting rack 3330 drives the lifting frame 3341, the lifting support plate 3340, the wire-pulling cylinder 3361 and the wire-pulling block 3362 to slide upward, so that the curtain piece 400 with the ladder rope threaded falls onto the lower support plate 3351; the rear lifting servo motor 320 drives the lifting frame 3341, the lifting support plate 3340, the wire-pulling cylinder 3361 and the wire-pulling block 3362 to slide downward.

[0079] Preferably, a second optical fiber sensor 3342 is provided on the side of the lifting frame 3341 , and the position of the lifting frame 3341 is sensed by the second optical fiber sensor 3342 , thereby measuring the position of the lifting frame 3341 .

[0080] Preferably, a second proximity switch 3370 is provided on the side of the curtain plate bracket 3303. The second proximity switch 3370 is located below the support plate and corresponds to the position where the lifting support plate 3340 slides to the lowermost end. The second proximity switch 3370 is used to detect whether there is a curtain plate on the corresponding threading assembly 330, which facilitates the detection and control of the curtain plate threading.

[0081] Preferably, a baffle is also sleeved on the threading profile 312, and the baffle is fixed by an adjusting nut. The position of the baffle is fixed before threading the curtain pieces so that the baffle contacts the baffle when it is at the front end, ensuring that all curtain pieces are neatly arranged after the ladder rope is threaded.

[0082] In this embodiment, the first fiber optic sensor 140, the display 220, the sheet feeding servo motor 2315, the first proximity switch 235, the punching cylinder 2381, the slicing cylinder 2391, the lifting servo motor 320, the sliding servo motor 3310, the second fiber optic sensor 3342, the wire pulling cylinder 3361, and the second proximity switch 3370 are all connected to the controller, and each cylinder, motor and sensor is monitored by the controller, and the monitoring and control results are limited to the display 220, which is convenient for manual intervention.

[0083] During the process of threading the ladder rope, the controller first controls each threading assembly 330 to move to the corresponding position (specifically, the sliding servo motor 3310 drives the entire assembly to slide along the left and right racks 314); then the upper sheet feeding wheel 2361 and the lower sheet feeding wheel 2362 drive the curtain pieces that have not been punched out at the back, and push the punched curtain pieces to the threading position, and at the same time, the curtain pieces are inserted into the ladder rope holes corresponding to each threading assembly 330; the lifting servo motor 320 drives the lifting rack 3330 to move upward through the lifting shaft 322 and the motor rotating gear 3311, and then sends the threaded curtain pieces to the lower supporting piece 3351 for support; the lifting servo motor 320 drives the lifting rack 3330 to move downward through the lifting shaft 322 and the motor rotating gear 3311, and the rear wire-pulling cylinder 3361 drives the wire-pulling block 3362 to move to the other direction, so that the ladder ropes are staggered, and the threading process of the next curtain piece is carried out at the same time; after all the curtain pieces are threaded with ladder ropes, the threading process of the pull rope is carried out.

[0084] The present invention can realize automatic threading and manual threading of the pull rope:

[0085] (1) During the manual threading process, after all curtain pieces have been threaded, align the perforations of all curtain pieces and manually thread the pull cord through all curtain pieces to complete the manual threading of the pull cord.

[0086] (2) During the automatic threading process, a rope-pulling rod is provided on the side of the curtain plate bracket 3303. One end of the rope-pulling rod is connected to the rope-pulling cylinder, and the other end is provided with a rope-pulling hook: the rope-pulling cylinder drives the rope-pulling rod to descend and pass through the perforations of all curtain plates. The rope-pulling hook hooks the rope on the lower side, and the rope-pulling cylinder drives the rope-pulling rod to rise, thereby driving the rope to pass through all curtain plates, thereby completing the automatic threading of the rope.

[0087] Preferably, during the automatic threading of the pull rope, the position of the pull rope rod corresponds to the central hollow position of the lifting support plate 3340, ensuring that the position of the pull rope rod corresponds to the position of each curtain piece.

[0088] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

[0089] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. An automatic threading device for venetian blinds, comprising a threading device, wherein the threading device comprises a threading frame, a threading profile located above the threading frame, and a plurality of threading components sleeved on the threading profile, It is characterized in that The threading device also includes a lifting servo motor, left and right slide rails and left and right racks; the threading assembly includes a threading base plate, a curtain plate bracket, a threading slider, a sliding servo motor, a lifting gear, a lifting support plate, a threading cylinder and a threading block: The curtain plate bracket and the threading slider are both fixedly connected to the threading bottom plate, the curtain plate bracket is provided with a supporting plate, the threading slider is sleeved on the left and right slide rails, the output end of the sliding servo motor is meshed and connected with the left and right racks through the motor rotating gear, the sliding servo motor drives the motor rotating gear to rotate, and then the threading slider slides along the left and right slide rails; The lifting gear is fixed to the threading base plate through a lifting bearing, the lifting gear is meshed with the lifting rack, the upper end of the lifting rack passes through the threading base plate and is fixedly connected to the lifting support plate, the lifting gear is buckled with the lifting shaft, the lifting shaft is fixed to the output shaft of the lifting servo motor, the upper end of the lifting rack is fixedly connected to the lifting frame, the lifting support plate and the wire-digging cylinder are fixed to the front end of the lifting frame, and the lifting rack drives the lifting frame, the lifting support plate, the wire-digging cylinder and the wire-digging block to slide up and down when sliding up and down; The curtain piece is located on the upper side of the lifting support plate and the wire-pulling block, the wire-pulling cylinder is connected to the wire-pulling block and drives the wire-pulling block to slide left and right, and the ladder rope passes around the wire-pulling block and is hung on the curtain piece bracket; The threading device also includes a feeding device and an arc pressing and punching device. The curtain pieces on the feeding device are unwound and enter the threading device after arc pressing, punching and slicing by the arc pressing and punching device.

2. The automatic threading device for Venetian blinds according to claim 1, It is characterized in that The material discharge device includes a material discharge machine box and a material tray arranged on the material discharge machine box, and the curtain piece is rolled up on the material tray; a mask is provided on the lower side of the material tray, and the curtain piece after discharge is bent in the mask and then enters the arc pressing punching device.

3. The automatic threading device for venetian blinds according to claim 2, It is characterized in that A first optical fiber sensor is arranged on the side wall of the mask.

4. The automatic threading device for Venetian blinds according to claim 1, It is characterized in that The arc pressing punching device comprises an arc pressing punching machine box and an arc pressing component, a punching component and a slicing component arranged in the arc pressing punching machine box: The arc pressing assembly comprises an arc pressing upper wheel and an arc pressing lower wheel corresponding to upper and lower positions, the side surface of the arc pressing upper wheel is provided with an arc pressing groove with an inward concave shape, and the side surface of the arc pressing lower wheel is provided with an arc pressing protrusion corresponding to the arc pressing groove; the upper and lower film feeding wheels and the lower film feeding wheels corresponding to upper and lower positions are provided behind the upper and lower arc pressing wheels, and the lower film feeding wheel is connected to a film feeding servo motor; The punching assembly comprises a punching cylinder and a punching plate, and the lower end of the punching cylinder is connected to the punching needle; The slicing assembly comprises a slicing cylinder and a slicing plate, and the lower end of the slicing cylinder is connected to the cutter.

5. The automatic threading device for Venetian blinds according to claim 4, It is characterized in that The arc pressing upper wheel is arranged on the machine head plate through an arc pressing wheel plate. The arc pressing wheel plate is provided with a transverse arc pressing wheel plate slide groove. The front end of the arc pressing screw rod nut is sleeved in the arc pressing wheel plate slide groove, and the rear end thereof is sleeved on the arc pressing screw rod in the vertical direction. The arc pressing screw rod is fixed on the machine head plate.

6. The automatic threading device for Venetian blinds according to claim 1, It is characterized in that A protruding clamping strip is provided on the inner side of the motor rotating gear, and a concave clamping groove is provided on the lifting shaft. The clamping strip is engaged with the clamping groove so that the motor rotating gear is engaged and connected with the lifting shaft.

7. The automatic threading device for Venetian blinds according to claim 1, It is characterized in that A second proximity switch is provided on the side of the curtain plate bracket. The second proximity switch is located below the supporting plate and corresponds to the position where the lifting supporting plate slides to the lowest end.

8. The automatic threading device for Venetian blinds according to claim 1, It is characterized in that A rope pulling rod is also provided on the side of the curtain plate bracket, one end of the rope pulling rod is connected to the rope pulling cylinder, and the other end of the rope pulling rod is provided with a rope pulling hook.

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