Double-arm reciprocating bale plucker

Abstract

The utility model discloses a double-arm reciprocating bale plucker, which relates to the technical field of bale plucking equipment and comprises a walking trolley mounted on a ground rail, a tower mounted on the walking trolley, a lead screw lifting device mounted on the tower and a suspension connecting device mounted on the lead screw lifting device. The two bale plucking arms are installed on the suspension connecting device, and the suspension connecting device is connected with a lead screw of the lead screw lifting device through a flange nut; the cotton plucking device further comprises a control device used for detecting the distance between the cotton plucking face of the cotton plucking arm and the surface of a cotton bale, the control device is connected with a lead screw lifting device, and when the distance between the cotton plucking face of the cotton plucking arm and the surface of the cotton bale is not within the theoretical range, the lead screw lifting device is controlled to enable the distance between the cotton plucking face of the cotton plucking arm and the surface of the cotton bale to be within the theoretical range. The double-arm reciprocating bale plucker is large in working breadth, capable of greatly improving the mixing effect, high in working efficiency and high in transmission precision.

Description

Technical Field

[0001] The utility model relates to the technical field of cotton grabbing equipment, in particular to a double-arm reciprocating cotton grabber. Background Art

[0002] In the spinning industry, the reciprocating cotton grabber is the first process, responsible for grabbing small cotton bundles from bales of cotton and transporting them to the subsequent process under the suction of a blower. Traditional reciprocating cotton grabbers, as Figure 1 shown, mainly consist of a ground rail 6, a cotton conveying pipeline, a traveling trolley 2, a tower 3, a turret rotating device, a cotton grabbing arm 9, a cotton grabbing arm suspension device, a covering belt winding device 5, a control device 1, etc.

[0003] However, traditional reciprocating cotton grabbers have the following drawbacks:

[0004] From the perspective of production factors:

[0005] The working width is limited, affecting production. The cotton grabbing arm of the traditional cotton grabber adopts a cantilever structure. The cotton grabbing arm can move up and down on the turret track through a suspension structure. The working width of the cotton grabbing arm is 1700 - 2500 mm. Affected by the current working mode and structure of the cotton grabbing arm and the suspension structure, the effective working width of the cotton grabbing arm (which cannot be continuously increased) is limited, and the maximum production of the cotton grabbing arm is 2000 kg / h.

[0006] The technological requirements of the cotton grabber for grabbing fine and small cotton do not allow the single - time downward amount to be too large, affecting production. Without changing the machine width, if the traditional cotton grabber wants to increase production, the single - time downward amount of the cotton grabbing arm in the vertical direction needs to be increased. With the increase of the single - time downward amount, the number of cotton bundles grabbed by the cotton grabber per unit time will increase, and the purpose of increasing production can be achieved. However, at this time, the grabbed cotton bundles are not only large but also have poor dispersion, which seriously does not meet the technological requirements of the cotton grabber for grabbing fine and small cotton.

[0007] The covering belt winding device is limited, affecting production. The covering belt winding device of the traditional cotton grabber is on the side close to the blower and is relatively close to the turret. After the cotton grabber grabs the cotton bales on one side of the ground rail, the cotton grabbing arm can rotate 180° on the side far from the blower along with the turret and rotate to the other side of the ground rail to grab the cotton bales on the other side of the ground rail. Safety cover doors are installed around the turret and need to be opened in some cases. Affected by this situation, the size of the covering belt winding device and the length of the covering belt are limited, and the number and length of cotton bales discharged are also limited, thus affecting the production of the cotton grabber.

[0008] From the perspective of raw material mixing factors:

[0009] The working width of traditional reciprocating bale pluckers is 1700 - 2500 mm, and the raw material mixing effect is limited. For bale pluckers, the wider the single bale discharge, the more fully the multi-variety raw materials are mixed, and the better the mixing effect. With the improvement of the spinning process requirements of downstream spinning users, the existing reciprocating bale pluckers can no longer meet the process use requirements of high-quality users for raw material mixing.

[0010] From the perspective of safety factors:

[0011] There are safety hazards in the lifting device of traditional reciprocating bale pluckers. During the use of traditional reciprocating bale pluckers, a balance weight is connected to the bale plucking arm through a steel wire rope. When the bale plucking arm rises, the weight drops; when the bale plucking arm drops, the weight rises. During equipment maintenance by users, if there is no protection device for the balance weight, it poses certain safety hazards to maintenance personnel.

[0012] In summary, how to effectively solve the problems of small working width and poor mixing effect of traditional reciprocating bale pluckers is an urgent problem for those skilled in the art at present. Summary of the Invention

[0013] The purpose of the present invention is to provide a double-arm reciprocating bale plucker, which has a large working width, can greatly improve the mixing effect, has high working efficiency, and relatively high transmission accuracy.

[0014] To solve the above technical problems, the present invention provides the following technical solutions:

[0015] A double-arm reciprocating bale plucker includes a traveling trolley installed on a ground rail, a tower installed on the traveling trolley, a screw rod lifting device installed on the tower, a suspension connection device installed on the screw rod lifting device, and two bale plucking arms installed on the suspension connection device. The suspension connection device is connected to the screw rod of the screw rod lifting device through a flange nut; it also includes a control device for detecting the distance between the bale plucking surface of the bale plucking arm and the surface of the bale. The control device is connected to the screw rod lifting device. When the distance between the bale plucking surface of the bale plucking arm and the surface of the bale is not within the theoretical range, the screw rod lifting device is controlled to make the distance between the bale plucking surface of the bale plucking arm and the surface of the bale within the theoretical range.

[0016] On the one hand, the two bale plucking arms are connected through a total suspension connection device. The two suspension brackets on both sides of the total suspension connection are connected by a total brace. The flange nut is connected to the total brace. The total suspension connection device is connected to a set of the screw rod lifting devices.

[0017] On the one hand, the two cotton grabbing arms are respectively connected by two sub-suspension connecting devices. The two suspension brackets on both sides of the sub-suspension connecting device are respectively connected to two sub-support blocks, and flange nuts are connected to the sub-support blocks. The sub-suspension connecting devices are respectively connected to a set of the screw rod lifting devices.

[0018] On the one hand, both the main support block and the sub-support block include two support block bodies with equal height and parallel to each other. There is a gap between the two support block bodies, and each support block body is connected to the flange nut.

[0019] On the one hand, each support block body includes upper and lower layers of bent edges. Each layer of bent edge is connected to the flange nut, and the axes of the upper flange nut and the lower flange nut coincide.

[0020] On the one hand, the suspension bracket includes a suspension vertical plate parallel to the screw rod, and suspension columns connected to both sides of the suspension vertical plate. Connection parts for connecting to the main support block or the sub-support block are provided on the suspension columns.

[0021] On the one hand, when the two cotton grabbing arms are respectively connected by two sub-suspension connecting devices, the cotton conveying connecting pipe is a three-way cotton conveying connecting pipe or a cotton conveying connecting pipe. The three-way cotton conveying connecting pipe or the cotton conveying connecting pipe is connected to the telescopic pipe, and the telescopic pipe is connected to the cotton conveying pipeline;

[0022] When the two cotton grabbing arms are respectively connected by two sub-suspension connecting devices, the two cotton grabbing arms are respectively connected to a telescopic pipe through a cotton conveying connecting pipe. The other ends of the two telescopic pipes are connected to a double telescopic pipe connecting pipe, and the other end of the double telescopic pipe connecting pipe is connected to the cotton conveying pipeline.

[0023] On the one hand, the screw rod lifting device includes a screw rod driving motor, a connecting shaft connected to the output shafts on both sides of the screw rod driving motor through a coupling, a commutator connected to the connecting shaft, a lifter connected to the output end of the commutator, and the screw rod is connected to the lifter.

[0024] On the one hand, the control device includes:

[0025] A position sensor for detecting the height of the cotton grabbing surface of the cotton grabbing arm;

[0026] A height sensor for detecting the current height of the cotton bale surface;

[0027] A control mechanism connected to the position sensor and the height sensor, and used to control the screw rod lifting device to make the difference between the height of the cotton grabbing surface of the cotton grabbing arm and the current height of the cotton bale surface within the theoretical range when the difference is not within the theoretical range.

[0028] On the one hand, the control mechanism includes:

[0029] A receiving unit configured to receive the height information of the cotton-gripping surface detected by the position sensor and the current height information of the cotton bale surface detected by the height sensor;

[0030] A judgment unit connected to the receiving unit and configured to judge whether the difference between the height of the cotton-gripping surface of the cotton-gripping arm and the current height of the cotton bale surface is within a theoretical range;

[0031] A control unit connected to the judgment unit and configured to control the screw rod lifting device to make the difference between the height of the cotton-gripping surface of the cotton-gripping arm and the current height of the cotton bale surface within the theoretical range when the difference is not within the theoretical range.

[0032] For the double-arm reciprocating cotton grabber provided by the present utility model, the traveling trolley is installed on the ground rail, the tower is fixed above the traveling trolley and can reciprocate on the ground rail along with the traveling trolley. The screw rod lifting device is installed on the tower, the suspension connection device is installed on the screw rod lifting device, the suspension connection device is connected to the screw rod of the screw rod lifting device through a flange nut, and the screw rod lifting device drives the suspension connection device to slide up and down along the screw rod. Two cotton-gripping arms are installed on the suspension connection device, and the cotton bundles grabbed by the cotton-gripping arms flow into the cotton conveying pipeline and are sucked by the fan 7 to the next process.

[0033] The control device detects the distance between the cotton-gripping surface of the cotton-gripping arm and the cotton bale surface. The control device is connected to the screw rod lifting device. When the distance between the cotton-gripping surface and the cotton bale surface is greater than the set value or less than the preset value, the screw rod lifting device is controlled to lower the cotton-gripping surface below the set value from the cotton bale surface or raise it above the preset value, so that the height of the cotton-gripping arm adapts to the height of the cotton bale, so that the cotton-gripping surface can grab the cotton bundle.

[0034] For the double-arm reciprocating cotton grabber provided by the present utility model, there is one cotton-gripping arm on each side of the tower, forming a double-arm. The double-arms work simultaneously, the working width can reach 5000mm, and the maximum output is about 4000kg / h, which greatly improves the bale discharging amount and can also greatly improve the mixing effect. Description of the Drawings

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0036] Figure 1 It is a schematic structural diagram of a traditional reciprocating cotton grabber in the prior art;

[0037] Figure 2 Schematic structural diagram of a double-arm reciprocating bale plucker adopting a covering belt winding device according to a specific embodiment of the present invention;

[0038] Figure 3 For Figure 2 Cross-sectional view;

[0039] Figure 4 Schematic structural diagram of a double-arm reciprocating bale plucker adopting an Ω device (two bale plucking arms connected together) according to a specific embodiment of the present invention;

[0040] Figure 5 For Figure 4 Cross-sectional view;

[0041] Figure 6 For Figure 3 Top view and schematic diagram of the bale discharge area;

[0042] Figure 7 Schematic structural diagram of a double-arm reciprocating bale plucker adopting an Ω device (the two bale plucking arms on both sides can be lifted independently) according to the present invention;

[0043] Figure 8 For Figure 7 Cross-sectional view;

[0044] Figure 9 Schematic diagram of a screw rod lifting device driven by an intermediate motor;

[0045] Figure 10 Schematic diagram of a screw rod lifting device driven by a side motor;

[0046] Figure 11 Schematic diagram of a left screw rod lifting device and a right screw rod lifting device;

[0047] Figure 12 Schematic diagram of a suspension connection device with the left and right suspension brackets connected together;

[0048] Figure 13 Schematic diagram of a left suspension connection device;

[0049] Figure 14 Schematic diagram of a right suspension connection device.

[0050] The markings in the drawings are as follows:

[0051] 1 is the control device, 2 is the traveling trolley, 3 is the tower, 4 is the screw rod lifting device, 5 is the covering belt winding device, 6 is the ground rail, 7 is the fan, 8 is the suspension connection device, 9 is the cotton grabbing arm, 10 is the three-way cotton conveying connection pipe, 11 is the screw rod, 12 is the Ω device, 13 is the double telescopic pipe connection pipe, 14 is the telescopic pipe, 15 is the screw rod drive motor, 16 is the coupling, 17 is the connecting shaft, 18 is the commutator, 19 is the lifter, 20 is the flange nut, 21 is the suspension bracket, 22 is the suspension vertical plate, 23 is the suspension column, 24 is the main brace, 25 is the sub-brace, 26 is the cotton conveying connection pipe, 261 is the left cotton conveying connection pipe, 262 is the right cotton conveying connection pipe, 41 is the left screw rod lifting device, 42 is the right screw rod lifting device, 81 is the left suspension connection device, 82 is the right suspension connection device, 91 is the left cotton grabbing arm, 92 is the right cotton grabbing arm. Detailed implementation mode

[0052] The core of the present utility model is to provide a double-arm reciprocating cotton grabber, which has a large working width, can greatly improve the mixing effect, has high working efficiency, and high transmission accuracy.

[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0054] Please refer to Figures 2 to 14 , the double-arm reciprocating cotton grabber provided by the present utility model includes a traveling trolley 2 installed on the ground rail 6, a tower 3 installed on the traveling trolley 2, a screw rod lifting device 4 installed on the tower 3, a suspension connection device 8 installed on the screw rod lifting device 4, and two cotton grabbing arms 9 installed on the suspension connection device 8. The suspension connection device 8 is connected to the screw rod 11 of the screw rod lifting device 4 through a flange nut 20; it further includes a control device 1 for detecting the distance between the cotton grabbing surface of the cotton grabbing arm 9 and the surface of the cotton bale. The control device 1 is connected to the screw rod lifting device 4. When the distance between the cotton grabbing surface of the cotton grabbing arm 9 and the surface of the cotton bale is not within the theoretical range, the screw rod lifting device 4 is controlled to make the distance between the cotton grabbing surface of the cotton grabbing arm 9 and the surface of the cotton bale within the theoretical range.

[0055] In the above structure, the double-arm reciprocating cotton grabber includes a ground rail 6, a traveling trolley 2, a tower 3, a screw rod lifting device 4, a suspension connection device 8, cotton grabbing arms 9, a cotton conveying pipeline, a fan 7, and a control device 1.

[0056] The walking trolley 2 is installed on the ground rail 6, and the tower 3 is fixed above the walking trolley 2 and can reciprocate on the ground rail 6 along with the walking trolley 2. The screw rod lifting device 4 is installed on the tower 3, and the suspension connection device 8 is installed on the screw rod lifting device 4. The suspension connection device 8 is connected to the screw rod 11 of the screw rod lifting device 4 through a flange nut 20, and the screw rod lifting device 4 drives the suspension connection device 8 to slide up and down along the screw rod 11. Two cotton grabbing arms 9 are installed on the suspension connection device 8, and the cotton bundles grabbed by the cotton grabbing arms 9 flow into the cotton conveying pipeline and are sucked by the fan 7 to the next process.

[0057] The control device 1 detects the distance between the cotton grabbing surface of the cotton grabbing arm 9 and the surface of the cotton bale. The control device 1 is connected to the screw rod lifting device 4. When the distance between the cotton grabbing surface and the surface of the cotton bale is greater than the set value or less than the preset value, the screw rod lifting device 4 is controlled to lower the cotton grabbing surface below the set value from the surface of the cotton bale or raise it above the preset value, so that the height of the cotton grabbing arm 9 adapts to the height of the cotton bale, so that the cotton grabbing surface can grab the cotton bundle.

[0058] For the double-arm reciprocating cotton grabbing machine provided by the present utility model, there is one cotton grabbing arm 9 on each side of the tower 3, forming two arms. The two arms work simultaneously, and the working width can reach 5000 mm, and the maximum output is about 4000 kg / h, which greatly improves the bale discharging volume and can also greatly improve the mixing effect; the screw rod drive has high transmission accuracy.

[0059] The present utility model adopts a double-cotton grabbing arm 9 structure, and the cotton grabbing arms 9 are arranged on both sides of the tower 3. See Figure 6 As shown, the cotton bale discharging areas on both sides of the ground rail 6 can be divided into four areas A1, A2, B1, and B2. A1, A2 and B1, B2 are separated by a set distance, such as 2 meters. The cotton grabbing arm 9 can start grabbing cotton bales from the areas A1, A2, and keep grabbing until the end of the areas B1, B2, and then return to grab the cotton bundles. In this way, the cycle continues until all the cotton bundles in all areas are grabbed, the cotton bales are re-discharged, and then grabbed again.

[0060] The cotton grabbing arm 9 first grabs the cotton bundles in the areas A1, A2, and then grabs the cotton bundles in the areas B1, B2. When the cotton grabbing arm 9 grabs the cotton bundles in the cotton bale discharging areas A1, A2, the cotton bales can be discharged in the areas B1, B2. After the cotton bales in the areas A1, A2 are grabbed, it can go to the areas B1, B2 to grab the discharged cotton bales, and at the same time, the cotton bales in the areas A1, A2 can be discharged. In this way, the cycle can improve the working efficiency.

[0061] See Figure 6 As shown, multiple same raw materials with different components can be discharged simultaneously in the two areas A1, A2 for discharging cotton bales, and B1, B2 can discharge the same variety of raw materials as A1, A2; when the same raw material is discharged in the two areas A1, A2, the two areas B1, B2 can discharge other varieties of raw materials different from those in the areas A1, A2; while greatly improving the bale discharging volume, the mixing effect can also be greatly improved.

[0062] Based on the above specific embodiments, the connection and lifting methods of the double cotton grabbing arms 9 include:

[0063] One method is that the two arms are connected and lifted at the same height. The cotton grabbing arms 9 on both sides are connected together by an overall total suspension connection device 8. Specifically, the two cotton grabbing arms 9 are connected by the total suspension connection device 8. The two suspension frames 21 on both sides of the total suspension are connected by a total brace 24, and a flange nut 20 is connected to the total brace 24. The total suspension connection device 8 is connected to a set of screw rod lifting devices 4.

[0064] At this time, the connected double cotton grabbing arms 9 and the total suspension connection device 8 can be lifted and lowered simultaneously by a set of screw rod lifting devices 4. At this time, either the covering belt winding device 5 or the Ω device 12 can be adopted.

[0065] Another method is that the two arms are independent and the lifting is independently operated. The cotton grabbing arms 9 on both sides are not connected together. Specifically, the two cotton grabbing arms 9 are respectively connected by two sub-suspension connection devices 8. The left suspension connection device 81 and the right suspension connection device 82 both include sub-braces 25. The two suspension frames 21 on both sides of the sub-suspension connection device 8 are respectively connected to the two sub-braces 25. Flange nuts 20 are connected to the sub-braces 25, and the sub-suspension connection devices 8 are respectively connected to a set of screw rod lifting devices 4.

[0066] At this time, the two cotton grabbing arms 9 are respectively connected by two suspension connection devices 8. The two sub-suspension connection devices 8 are respectively independently controlled to rise and fall by a set of screw rod lifting devices 4. The two sets of screw rod lifting devices 4 can also rise and fall simultaneously. The lifting heights can be synchronous or asynchronous. At this time, the Ω device 12 can be adopted. The tower 3 does not need to rotate. Whether the Ω device 12 or the covering belt winding device 5 is adopted, the length of the cotton bale discharge area can be increased to more than 70 meters, greatly improving the bale discharging volume and also significantly improving the mixing effect.

[0067] Based on the above various specific embodiments, both the total brace 24 and the sub-brace 25 include two brace bodies with equal height and parallel to each other. There is a gap between the two brace bodies, and each brace body is connected to the flange nut 20.

[0068] In a specific embodiment, the two brace bodies have equal height and are parallel to each other. A flange nut 20 is fixed on each brace body and is connected to the lead screw 11 to ensure the stable operation of the suspension connection device 8. The telescopic tube 14 is connected to the cotton conveying connection tube 26 or the three-way cotton conveying connection tube 10. The cotton conveying connection tube 26 or the three-way cotton conveying connection tube 10 connected to the telescopic tube 14 is placed in the gap between the two brace bodies. The structure is compact, and the connection tube is not easily wound and interferes with the operation of the suspension frame 21.

[0069] Based on the above specific embodiments, each bracing body includes upper and lower layers of bent edges, each layer of bent edge is connected to the flange nut 20, and the axes of the upper flange nut and the lower flange nut coincide.

[0070] In a specific embodiment, as shown in Figure 3 , Figure 5 , Figure 12 , the bracing body is in an inverted concave shape, with upper and lower layers of bent edges. The upper and lower bent edges are both connected to the flange nut 20 to limit the upper and lower parts of the lead screw 11 and ensure that the lead screw 11 is in the vertical direction; or only one upper bent edge or lower bent edge can be used to connect the flange nut 20, and the structure is simple.

[0071] Based on the above specific embodiments, the suspension bracket 21 includes a suspension vertical plate 22 parallel to the lead screw 11 and suspension columns 23 connected to both sides of the suspension vertical plate 22. The suspension columns 23 are provided with connection parts for connecting the main bracing 24 and the sub-bracing 25.

[0072] In a specific embodiment, the suspension bracket 21 includes a suspension vertical plate 22 and suspension columns 23. The suspension vertical plate 22 is parallel to the lead screw 11. The end face of the cotton grabbing arm 9 contacts and connects with the suspension vertical plate 22, and the suspension vertical plate 22 positions and fixes the cotton grabbing arm 9. There are through holes on the suspension vertical plate 22. The cotton grabbing arm 9 is connected to the outside of the suspension vertical plate 22 where the through holes are located, and the cotton conveying connecting pipe 26 or the tee cotton conveying connecting pipe 10 is connected to the inside of the suspension vertical plate 22 where the through holes are located. The other end of the cotton conveying connecting pipe 26 or the tee cotton conveying connecting pipe 10 is connected to the telescopic pipe 14. The suspension vertical plate 22 is connected to the suspension columns 23, specifically by welding, bolt connection or integral molding. The suspension columns 23 are provided with connection parts. The end face of the bracing abuts against the inside of the suspension vertical plate 22, and the side face of the bracing is connected to the connection part on the side face of the suspension column 23, specifically by bolt connection, which is detachable and convenient for disassembly.

[0073] As shown in Figure 12 , the suspension connection device 8 is composed of the suspension bracket 21 and the main bracing 24. The suspension brackets 21 on both sides of the suspension connection device 8 are connected by two main bracings 24. The suspension bracket 21 is composed of a suspension vertical plate 22, suspension columns 23, etc. The suspension connection device 8 is connected to the lead screw lifting device 4 through the flange nut 20.

[0074] As shown in Figure 13 , the left suspension connection device 81 is composed of a suspension vertical plate 22, suspension columns 23, sub-bracing 25, etc. The left suspension connection device 81 can be connected to the left lead screw lifting device 43 through the flange nut 20.

[0075] As shown in Figure 14As shown, the right suspension connecting device 82 is composed of a suspension vertical plate 22, a suspension column 23, a split support 25, etc. The right suspension connecting device 82 can be connected to the right screw rod lifting device 44 through a flange nut 20.

[0076] On the basis of the above specific embodiments, when the two cotton grabbing arms 9 are respectively connected through two split suspension connecting devices 8, the cotton conveying connecting pipe is a three-way cotton conveying connecting pipe 10 or a cotton conveying connecting pipe 26. The three-way cotton conveying connecting pipe 10 or the cotton conveying connecting pipe 26 is connected to the telescopic pipe 14, and the telescopic pipe 14 is connected to the cotton conveying pipeline.

[0077] When the two cotton grabbing arms 9 are respectively connected through two split suspension connecting devices 8, the two cotton grabbing arms 9 are respectively connected to a telescopic pipe 14 through a cotton conveying connecting pipe 26. The other ends of the two telescopic pipes 14 are connected to a double telescopic pipe connecting pipe 13, and the other end of the double telescopic pipe connecting pipe 13 is connected to the cotton conveying pipeline.

[0078] In a specific embodiment, the double-arm reciprocating cotton grabbing machine of the present invention includes at least two structural modes. The common points between structural mode one and structural mode two are that they both have a ground rail 6, a cotton conveying pipeline, a walking trolley 2, a tower 3, a control device 1 and other structures.

[0079] The differences are that the suspension connecting device 8, the cotton grabbing arm 9, and the screw rod lifting device 4 in structural mode one are an integral whole, and either the covering tape winding device 5 or the Ω device 12 can be adopted.

[0080] Specifically, referring to Figure 2 、 Figure 3 As shown, the cotton bundle grabbed by the cotton grabbing arm 9 flows into the cotton conveying pipeline through the three-way cotton conveying connecting pipe 10, the telescopic pipe 14, and the covering tape winding device 5, and is sucked by the fan 7 to the next process. Or, referring to Figure 4 、 Figure 5 As shown, the cotton bundle grabbed by the cotton grabbing arm 9 flows into the cotton conveying pipeline through the telescopic pipe 14, the double telescopic pipe connecting pipe 13, and the Ω device 12, and is sucked by the fan 7 to the next process. The cotton grabbing arms 9 on both sides use a common pipeline, and the structure is simple.

[0081] The suspension connecting device 8, the cotton grabbing arm 9, the screw rod lifting device 4, and the cotton conveying connecting pipe 26 in structural mode two are divided into left and right parts, namely the left cotton grabbing arm 91 and the right cotton grabbing arm 92, the left suspension connecting device 81 and the right suspension connecting device 82, the left screw rod lifting device 43 and the right screw rod lifting device 44, and the left cotton conveying connecting pipe 261 and the right cotton conveying connecting pipe 262. The covering tape winding device 5 cannot be selected, and only the Ω device 12 can be selected.

[0082] Specifically, referring to Figure 7 、 Figure 8As shown in the figure, the double cotton grabbing arm 9 is divided into a left cotton grabbing arm 91 and a right cotton grabbing arm 92. The left cotton grabbing arm 91 is connected to the left suspension connecting device 81, and the right cotton grabbing arm 92 is connected to the right suspension connecting device 82. The cotton bundle grabbed by the left cotton grabbing arm 91, through the left cotton conveying connecting pipe 261, the left telescopic pipe 141, and the cotton bundle grabbed by the right cotton grabbing arm 92, through the right cotton conveying connecting pipe 262 and the right telescopic pipe 142, are respectively converged from both sides of the Ω device 12 through the double telescopic pipe connecting pipe 13 and flow into the cotton conveying pipeline, and are sucked by the fan 7 to the next process. The cotton bundles on both sides do not interfere with each other before entering the cotton conveying pipeline and independently convey the cotton bundles, with relatively high working efficiency.

[0083] Based on the above various specific embodiments, the screw rod lifting device 4 includes a screw rod driving motor 15, a connecting shaft 17 connected to the output shafts on both sides of the screw rod driving motor 15 through a coupling 16, a commutator 18 connected to the connecting shaft 17, a lifter 19 connected to the output end of the commutator 18, and the lead screw 11 is connected to the lifter 19.

[0084] In a specific embodiment, refer to Figure 9 As shown in the figure, the screw rod lifting device 4 can be an intermediate screw rod lifting device 41 driven by an intermediate motor. This system is driven by a screw rod driving motor 15 located in the middle position and consists of a plurality of couplings 16, connecting shafts 17, commutators 18, lifters 19, flange nuts 20, and the lead screw 11, etc.

[0085] Refer to Figure 10 As shown in the figure, the screw rod lifting device 4 can be a side screw rod lifting device 42 driven by a side motor. This system is driven by a screw rod driving motor 15 located in the side position and consists of a plurality of couplings 16, connecting shafts 17, commutators 18, lifters 19, flange nuts 20, and the lead screw 11, etc.

[0086] Refer to Figure 11 As shown in the figure, the screw rod lifting device 4 can be an integral screw rod lifting device 4 composed of a left screw rod lifting device 43 and a right screw rod lifting device 44. Both the left screw rod lifting device 43 and the right screw rod lifting device 44 are driven by a screw rod driving motor 15 and consist of a plurality of couplings 16, connecting shafts 17, lifters 19, flange nuts 20, and the lead screw 11, etc.

[0087] Refer to Figure 3 、 Figure 5 、 Figure 9 、 Figure 10As shown, when the screw drive motor 15 in the screw lifting device 4 rotates forward, it drives the lead screw 11 to rotate in one direction through the coupling 16, the connecting shaft 17, the commutator 18, the lifter 19, etc. The rotation of the lead screw 11 drives the flange nut 20 to move upward, and then drives the main support 24, that is, the suspension connection device 8 and the cotton grabbing arm 9 to rise; when the screw drive motor 15 rotates reversely, it drives the lead screw 11 to rotate in the other direction through the coupling 16, the connecting shaft 17, the lifter 19, etc. The rotation of the lead screw 11 drives the flange nut 20 to move downward, and then drives the main support 24, that is, the suspension connection device 8 and the cotton grabbing arm 9 to descend.

[0088] See Figure 8 、 Figure 11 As shown, when the screw drive motor 15 in the left screw lifting device 43 rotates forward, it drives the lead screw 11 to rotate in one direction through the coupling 16, the connecting shaft 17, the lifter 19, etc. The rotation of the lead screw 11 drives the flange nut 20 to move upward, and then drives the sub-support 25, that is, the left suspension connection device 81 and the left cotton grabbing arm 91 to rise; when the screw drive motor 15 rotates reversely, it drives the lead screw 11 to rotate in the other direction through the coupling 16, the connecting shaft 17, the lifter 19, etc. The rotation of the lead screw 11 drives the flange nut 20 to move downward, and then drives the sub-support 25, that is, the left suspension connection device 81 and the left cotton grabbing arm 91 to descend. The working principle of the right screw lifting device 44 is the same as that of the above-mentioned left screw lifting device 43. The left and right screw lifting devices can perform lifting work independently or synchronously.

[0089] Based on the above specific embodiments, the control device 1 includes:

[0090] A position sensor for detecting the height of the cotton grabbing surface of the cotton grabbing arm 9;

[0091] A height sensor for detecting the current height of the cotton bale surface;

[0092] A control mechanism connected to the position sensor and the height sensor, and used to control the screw lifting device 4 when the difference between the height of the cotton grabbing surface of the cotton grabbing arm 9 and the current height of the cotton bale surface is not within the theoretical range, so that the difference between the height of the cotton grabbing surface of the cotton grabbing arm 9 and the current height of the cotton bale surface is within the theoretical range.

[0093] In practical applications, the control device 1 includes a position sensor, a height sensor, and a control mechanism. The position sensor is used to detect the height of the cotton-grabbing surface of the cotton-grabbing arm 9; the height sensor is used to detect the current height of the cotton bale surface; the control mechanism receives the height information of the cotton-grabbing surface detected by the position sensor and the current height information of the cotton bale surface detected by the height sensor, and compares the two. When the height of the cotton-grabbing surface of the cotton-grabbing arm 9 is higher than the set value of the current height of the cotton bale surface, it indicates that the height of the cotton-grabbing arm 9 is too high and the distance from the cotton bale surface is too far. At this time, the control mechanism needs to control the screw rod lifting device 4 to lower the cotton-grabbing surface downward until it is below the set value from the cotton bale surface, ensuring that the cotton-grabbing surface of the cotton-grabbing arm 9 can smoothly grab cotton tufts; when the height of the cotton-grabbing surface of the cotton-grabbing arm 9 is lower than the preset value of the current height of the cotton bale surface, it indicates that the height of the cotton-grabbing arm 9 is too low and the distance from the cotton bale surface is too close. At this time, the control mechanism needs to control the screw rod lifting device 4 to raise the cotton-grabbing surface upward until it is above the preset value from the cotton bale surface, ensuring that the cotton-grabbing surface of the cotton-grabbing arm 9 will not crush the cotton bale.

[0094] More specifically, the control mechanism includes a receiving unit, a judging unit, and a control section. The receiving unit is used to receive the height information of the cotton-grabbing surface detected by the position sensor and the current height information of the cotton bale surface detected by the height sensor; the judging unit is connected to the receiving unit and is used to judge whether the difference between the height of the cotton-grabbing surface of the cotton-grabbing arm 9 and the current height of the cotton bale surface is within the theoretical range; the control section is connected to the judging unit and is used to control the screw rod lifting device 4 when the difference between the height of the cotton-grabbing surface of the cotton-grabbing arm 9 and the current height of the cotton bale surface is not within the theoretical range, so that the difference between the height of the cotton-grabbing surface of the cotton-grabbing arm 9 and the current height of the cotton bale surface is within the theoretical range, ensuring that the cotton-grabbing surface of the cotton-grabbing arm 9 can accurately grab a reasonable amount of cotton tufts.

[0095] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other.

[0096] The above has introduced the double-arm reciprocating cotton-grabbing machine provided by the present utility model in detail. Specific examples are used herein to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A double-arm reciprocating plucking machine, characterized in that: The invention comprises a trolley (2) mounted on a ground rail (6), a tower (3) mounted on the trolley (2), a screw lifting device (4) mounted on the tower (3), a suspension connection device (8) mounted on the screw lifting device (4), and two cotton grabbing arms (9) mounted on the suspension connection device (8), wherein the suspension connection device (8) is connected to a screw (11) of the screw lifting device (4) via a flange nut (20); and further comprises a control device (1) for detecting the distance between the cotton grabbing surface of the cotton grabbing arm (9) and the surface of the cotton bale, wherein the control device (1) is connected to the screw lifting device (4), and when the distance between the cotton grabbing surface of the cotton grabbing arm (9) and the surface of the cotton bale is not within a theoretical range, the screw lifting device (4) is controlled so that the distance between the cotton grabbing surface of the cotton grabbing arm (9) and the surface of the cotton bale is within the theoretical range.

2. The double-arm reciprocating plucking machine according to claim 1, characterized in that: The two cotton grabbing arms (9) are connected via a total suspension connection device (8), the two suspension frames (21) on both sides of the total suspension connection are connected via a total support block (24), the flange nut (20) is connected to the total support block (24), and the total suspension connection device (8) is connected to a set of the screw lifting device (4).

3. The double-arm reciprocating plucking machine according to claim 2, characterized in that: The two cotton grabbing arms (9) are respectively connected via two sub-suspension connection devices (8); the two suspension frames (21) on both sides of the sub-suspension connection devices (8) are respectively connected to two sub-spreading blocks (25); the sub-spreading blocks (25) are each connected to the flange nut (20); and the sub-suspension connection devices (8) are respectively connected to a set of the screw lifting devices (4).

4. The double-arm reciprocating plucking machine according to claim 3, characterized in that: The total spacer (24) and the sub-spacer (25) each comprise two spacer bodies of equal height and parallel to each other, with a gap between the two spacer bodies, and each of the spacer bodies is connected to the flange nut (20).

5. The double-arm reciprocating plucking machine according to claim 4, characterized in that: Each of the support bodies comprises an upper and lower layer of bent edges, each layer of the bent edges is connected to the flange nut (20), and the axes of the upper flange nut and the lower flange nut coincide.

6. The double-arm reciprocating plucking machine according to claim 3, characterized in that: The suspension frame (21) comprises a suspension plate (22) parallel to the lead screw (11), and suspension columns (23) connected to both sides of the suspension plate (22); the suspension columns (23) are provided with a connection portion connected to the general support (24) or the sub-support (25).

7. The double-arm reciprocating plucking machine according to claim 6, characterized in that: When the two cotton grabbing arms (9) are connected respectively through the two sub-hanging connection devices (8), the two cotton grabbing arms (9) are respectively connected to one opening of the three-way cotton transport connecting pipe (10), the other opening of the three-way cotton transport connecting pipe (10) is connected to the telescopic pipe (14), and the telescopic pipe (14) is connected to the cotton transport pipeline; Alternatively, when the two cotton grabbing arms (9) are respectively connected via two sub-suspension connection devices (8), the two cotton grabbing arms (9) are respectively connected to a telescopic tube (14) via a cotton transport connecting tube (26), the other ends of the two telescopic tubes (14) are connected to a double telescopic tube connecting tube (13), and the other end of the double telescopic tube connecting tube (13) is connected to a cotton transport pipeline.

8. The double-arm reciprocating plucking machine according to claim 1, characterized in that: The screw lifting device (4) comprises a screw transmission motor (15), a connecting shaft (17) connected to the output shafts on both sides of the screw transmission motor (15) through a coupling (16), a commutator (18) connected to the connecting shaft (17), and a lifter (19) connected to the output end of the commutator (18), and the screw (11) is connected to the lifter (19).

9. The double-arm reciprocating plucking machine according to any one of claims 1 to 8, characterized in that: The control device (1) comprises: A position sensor for detecting the height of the cotton grabbing surface of the cotton grabbing arm (9); a height sensor for detecting a current height of the cotton bale surface; A control mechanism connected to the position sensor and the height sensor, and used to control the screw lifting device (4) so ​​that the current height difference between the height of the cotton grabbing surface of the cotton grabbing arm (9) and the surface of the cotton bale is within the theoretical range when the current height difference between the height of the cotton grabbing surface of the cotton grabbing arm (9) and the surface of the cotton bale is not within the theoretical range.

10. The double-arm reciprocating plucking machine according to claim 9, characterized in that: The control mechanism comprises: A receiving unit for receiving the cotton grabbing surface height information detected by the position sensor and the current height information of the cotton bale surface detected by the height sensor; A judgment unit connected to the receiving unit and used to judge whether the current height difference between the cotton grabbing surface height of the cotton grabbing arm (9) and the cotton bale surface is within a theoretical range; A control unit connected to the judgment unit and used to control the screw lifting device (4) so ​​that the current height difference between the cotton grabbing surface height of the cotton grabbing arm (9) and the cotton bale surface is within the theoretical range when the current height difference between the cotton grabbing surface height of the cotton grabbing arm (9) and the cotton bale surface is not within the theoretical range.

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