cord splicing device

Abstract

The present invention provides a curtain splicing device for connecting a first curtain and a second curtain. The curtain splicing device includes: a transmission frame; a first transmission mechanism disposed on the transmission frame, on which the first curtain is disposed; a second transmission mechanism disposed on the transmission frame, which drives the second curtain toward the first curtain and causes at least a portion of the second curtain to overlap with the first curtain; and a crimping assembly movably disposed relative to the transmission frame to compress the overlapping portion of the first and second curtains to connect the first and second curtains. The curtain splicing device of the present invention solves the problem of inconvenient splicing of small-angle curtains in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of tires, and in particular to a tire cord joint device. Background Art

[0002] In the manufacturing process of passenger car tires, motorcycle tires, air spring tires, etc., the cord belt layer is one of the important components. The production of the cord belt layer requires cutting the calendered cord according to the required angle and width, and then splicing the bevel edges and winding them up for molding and use. With the development of tire technology, the splicing efficiency of the cord belt layer, the amount of joint misalignment, and the quality of the joints are becoming increasingly higher. Due to the long bevel edges of the small-angle fiber cord belt layer joints, the bevel edges of the cord cannot be directly and actively transported to the joint position by conventional conveyor belts during the joint. Unlike 90-degree fiber cords, the head and tail of the cord can be placed on the front and rear conveyor belts for jointing.

[0003] At present, there are two main types of traditional small-angle fiber curtain fabric joints:

[0004] One is to complete it manually, which has poor joint quality, low efficiency and high labor intensity.

[0005] Another method uses a robotic joint, where the robot's suction cup picks up the front of the fabric and, mimicking manual jointing, places the front of the fabric at the rear of the fabric for jointing. The front and rear positions are determined by a camera. This method achieves automatic jointing, but the fabric stretches and deforms during the suction and dragging process. Furthermore, joint positioning requires a visual camera, which is costly and inaccurate. It is also more difficult and inefficient for long, beveled edges. Summary of the Invention

[0006] The main purpose of the present invention is to provide a cord joint device to solve the problem in the prior art that cords with small angles are inconvenient to splice.

[0007] To achieve the above-mentioned object, according to one aspect of the present invention, there is provided a curtain joint device for connecting a first curtain and a second curtain, the curtain joint device comprising: a transmission frame; a first conveying mechanism, the first conveying mechanism being arranged on the transmission frame, and the first curtain being arranged on the first conveying mechanism; a second conveying mechanism, the second conveying mechanism being arranged on the transmission frame to drive the second curtain to move toward the first curtain and to make at least a portion of the second curtain overlap with the first curtain; and a crimping assembly, the crimping assembly being movably arranged relative to the transmission frame to press the overlapping portion of the first curtain and the second curtain to connect the first curtain and the second curtain.

[0008] Furthermore, the first conveying mechanism includes: a retraction component, which is arranged on the transmission frame to drive the first curtain to move to a first preset position, wherein the second conveying mechanism drives the second curtain to move to a second preset position, and at least part of the first curtain at the first preset position and the second curtain at the second preset position overlap in the vertical direction.

[0009] Furthermore, the curtain joint device further includes: a positioning baffle, which is arranged on the transmission frame to stop the first curtain from moving when the retraction component drives the first curtain to move to the first preset position.

[0010] Furthermore, the retraction assembly includes: a retraction plate, which is movably arranged on the transmission frame; a retraction cylinder, which is connected to the retraction plate to drive the retraction plate to move, and the retraction plate moves to drive the second curtain to move closer to the first curtain.

[0011] Furthermore, the curtain joint device also includes: a first crimping plate, which is movably arranged relative to the first conveying mechanism to fix the first curtain at the first preset position when the first curtain moves to the first preset position; a first driving cylinder, which is drivingly connected to the first crimping plate to drive the first crimping plate to press the first curtain when the first curtain moves to the first preset position.

[0012] Furthermore, the crimping assembly includes: a second crimping plate, which is movably arranged relative to the second conveying mechanism to press the second curtain onto the first curtain when the second curtain moves to the second preset position; and a second driving cylinder, which is drivingly connected to the second crimping plate.

[0013] Furthermore, the curtain joint device further comprises: a rotating beam, which is rotatably arranged relative to the transmission frame, wherein the crimping assembly is arranged on the rotating beam to drive the crimping assembly to rotate.

[0014] Furthermore, there are multiple crimping assemblies, and the multiple crimping assemblies are arranged at intervals along the extension direction of the rotating beam, wherein the second curtain moves along the first preset direction on the transmission frame, and the curtain joint device also includes: a rotation drive assembly, which is connected to the center drive of the rotating beam to adjust the angle between the extension direction of the rotating beam and the first preset direction by driving the rotating beam to rotate.

[0015] Furthermore, the curtain joint device also includes: a first guide rail assembly, the first guide rail assembly is arranged on the transmission frame, and the rotating beam is movably arranged on the first guide rail assembly to rotate along the guide direction of the first guide rail assembly.

[0016] Furthermore, the curtain joint device further includes a joint rotation center axis, which is rotatably disposed on a transmission frame. The rotating beam is connected to the transmission frame via the joint rotation center axis. The first guide rail assembly includes a first curved track and a second curved track, the first curved track and the second curved track being symmetrically arranged about the joint rotation center axis. The first end of the rotating beam is connected to the first curved track, and the second end of the rotating beam is connected to the second curved track. The rotating drive assembly drives the rotating beam to rotate along the first curved track and the second curved track. The rotating drive assembly drives the rotating beam to rotate via the joint rotation center axis, so that the rotating beam rotates around the rotation axis on the first curved track and the second curved track.

[0017] Furthermore, the first conveying mechanism and the second conveying mechanism are respectively arranged on both sides of the rotating beam. The first conveying mechanism and the second conveying mechanism each include a plurality of telescopic belts, and the plurality of telescopic belts are rotatably connected to the rotating beam so as to telescopically move along a first preset direction under the drive of the rotating beam.

[0018] Furthermore, the curtain joint device also includes: a plurality of second guide rails, which are arranged in parallel on the transmission frame, and the second guide rails extend along a first preset direction; a plurality of sliders, which are arranged one-to-one on the plurality of second guide rails and are movably arranged along the second guide rails; wherein the telescopic belt is connected to the slider to telescopically move along the guide direction of the second guide rail under the drive of the rotating beam.

[0019] The cord joint device using the technical solution of the present invention is mainly used in the process of connecting the cord of a rubber tire after it is cut. Specifically, the cord joint device includes two conveying mechanisms and a crimping assembly arranged between the two conveying mechanisms. The first conveying mechanism and the second conveying mechanism are used to overlap the first cord and the second cord. Then, the crimping assembly presses the overlapping position to crimp the first cord and the second cord together, thereby completing the connection between the front and rear cords. The cord joint device of the present invention has precise connection and realizes automatic connection, which solves the problem of inconvenient cord connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 A schematic diagram showing a first perspective of an embodiment of a cord splicing device according to the present invention is shown;

[0022] Figure 2 A schematic diagram showing a second perspective of an embodiment of the cord splicing device of the present invention;

[0023] Figure 3 A schematic diagram showing a third perspective of an embodiment of the cord splicing device of the present invention;

[0024] Figure 4 A schematic diagram showing a first viewing angle of an embodiment of the curtain joint device of the present invention when the angle a between the rotating beam and the first preset direction is 90°;

[0025] Figure 5 A schematic diagram showing the telescopic belt extending forward when the angle a between the rotating beam of the curtain joint device of the present invention and the first preset direction is an acute angle is shown;

[0026] Figure 6 A schematic diagram showing the backward movement of the telescopic belt when the angle a between the rotating beam of the curtain joint device of the present invention and the first preset direction is an acute angle is shown;

[0027] Figure 7 A schematic diagram showing a second viewing angle of an embodiment of the curtain joint device of the present invention when the angle a between the rotating beam and the first preset direction is 90°;

[0028] Figure 8 A schematic diagram showing a perspective of an embodiment of the curtain joint device of the present invention when the angle a between the rotating beam and the first preset direction is an acute angle;

[0029] Figure 9 A schematic diagram showing an embodiment of a crimping assembly of a cord splice device according to the present invention when not crimped is shown;

[0030] Figure 10 A schematic diagram illustrating the embodiment of the curtain joint device according to the present invention, in which the retraction assembly drives the first curtain to move to the first preset position;

[0031] Figure 11 A schematic diagram showing the first pressing plate pressing down in an embodiment of the cord splice device according to the present invention is shown;

[0032] Figure 12 A schematic diagram showing the second conveying mechanism driving the second curtain to move to the second preset position in an embodiment of the curtain splicing device according to the present invention is shown;

[0033] Figure 13 A schematic diagram is shown of the embodiment of the cord splice device according to the present invention when the second pressing plate is pressed downward.

[0034] The above drawings include the following reference numerals:

[0035] 11. First fabric; 12. Second fabric; 13. Passive roller after feeding; 14. Feeding infeed roller; 15. Passive roller of feeding mobile frame; 17. Feeding strip telescopic belt; 18. Small roller of feeding mobile frame; 19. Feeding mobile frame; 20. Transmission frame; 30. First conveying mechanism; 31. Retraction assembly; 311. Retraction plate; 312. Retraction cylinder; 32. Active roller of unloading conveyor belt; 33. Passive roller after unloading; 34. Unloading infeed roller; 35. Passive roller of unloading mobile frame ; 37. Unloading strip telescopic belt; 38. Small roller of unloading movable frame; 39. Unloading movable frame; 40. Second conveying mechanism; 50. Crimping assembly; 511. First crimping plate; 512. First driving cylinder; 521. Second crimping plate; 522. Second driving cylinder; 60. Positioning baffle; 70. Rotating beam; 721. First arc track; 722. Second arc track; 81. Second guide rail; 82. Slider; 92. Joint beam linear guide rail; 93. Joint rotation center axis. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] In order to solve the problem in the prior art that small-angle curtains are inconvenient to splice, the present invention provides a curtain joint device.

[0038] Please refer to Figures 1 to 13 A curtain joint device is used to connect a first curtain 11 and a second curtain 12. The curtain joint device includes: a transmission frame 20; a first transmission mechanism 30, the first transmission mechanism 30 is arranged on the transmission frame 20, and the first curtain 11 is arranged on the first transmission mechanism 30; a second transmission mechanism 40, the second transmission mechanism 40 is arranged on the transmission frame 20 to drive the second curtain 12 to move toward the first curtain 11 and make at least a portion of the second curtain 12 overlap with the first curtain 11; a crimping assembly 50, the crimping assembly 50 is movably arranged relative to the transmission frame 20 to press the overlapping portion of the first curtain 11 and the second curtain 12 to connect the first curtain 11 and the second curtain 12.

[0039] The present invention provides a cord joint device that can automatically crimp cords according to the inclination angle of the cord edge. The cord joint device is mainly used in the process of connecting the cord of a rubber tire after it is cut. Specifically, the cord joint device includes two conveying mechanisms and a crimping assembly 50 arranged between the two conveying mechanisms. The first conveying mechanism 30 and the second conveying mechanism 40 are used to overlap the first cord 11 and the second cord 12. Then, the crimping assembly 50 presses the overlapping position to crimp the first cord 11 and the second cord 12 together, thereby completing the connection between the front and rear cords. The cord joint device of the present invention has precise connection, realizes automatic connection, and solves the problem of inconvenient cord connection.

[0040] The first conveying mechanism 30 includes a retraction assembly 31 mounted on the transmission frame 20 to move the first curtain 11 to a first preset position. The second conveying mechanism 40 drives the second curtain 12 to a second preset position, with at least portions of the first curtain 11 at the first preset position and the second curtain 12 at the second preset position vertically overlapping. The curtain joint device also includes a positioning stopper 60 mounted on the transmission frame 20 to stop the first curtain 11 from moving when the retraction assembly 31 drives the first curtain 11 to the first preset position. The retraction assembly 31 includes a retraction plate 311 movably mounted on the transmission frame 20, and a retraction cylinder 312 connected to the retraction plate 311 to drive the retraction plate 311 to move. The retraction plate 311 moves to move the second curtain 12 closer to the first curtain 11.

[0041] like Figure 9 and Figure 10 As shown, the first conveying mechanism 30 in this embodiment is located on the left side of the transmission frame 20. The first conveying mechanism 30 can drive the curtain to move to the right and to the left. When moving to the left, the motor drives the conveyor belt or roller to rotate and drive the first curtain 11 to move. When moving to the right, that is, moving backward, the curtain is driven to move backward with the help of the retraction component 31. Specifically, the piston of the retraction cylinder 312 is extended and retracted to drive the retraction plate 311 to move backward, thereby moving the first curtain 11 toward the rear. When the curtain abuts against one side of the positioning baffle 60, it reaches the first preset position and the retraction cylinder 312 stops moving.

[0042] The curtain splicing device further includes: a first crimping plate 511, which is movably disposed relative to the first conveying mechanism 30 to secure the first curtain 11 at the first preset position when the first curtain 11 moves to the first preset position; a first driving cylinder 512, which is drivably connected to the first crimping plate 511 to drive the first crimping plate 511 to compress the first curtain 11 when the first curtain 11 moves to the first preset position. The crimping assembly 50 includes: a second crimping plate 521, which is movably disposed relative to the second conveying mechanism 40 to press the second curtain 12 against the first curtain 11 when the second curtain 12 moves to the second preset position; and a second driving cylinder 522, which is drivably connected to the second crimping plate 521.

[0043] like Figures 11 to 13 As shown, when the retraction cylinder 312 pushes the retraction plate 311 to drive the first curtain 11 to move to the first preset position, the first driving cylinder 512 pushes the first pressing plate 511 to move downward to fix the first curtain 11 at the first preset position, and then the second conveying mechanism 40 drives the second curtain 12 to move forward until it reaches the second preset position and stops moving. In order to facilitate the positioning of the second curtain 12, the position of the first pressing plate 511 is specially set according to the actual position, so that the end of the second curtain 12 abuts against one side of the first pressing plate 511 and reaches the second preset position. At this time, the second driving cylinder 522 drives the second pressing plate 521 to press down, and the second curtain 12 overlaps with the first curtain 11. The second curtain 12 is located above the first curtain 11, and the second pressing plate 521 presses the two curtains together.

[0044] The cord splicing device further includes a rotating beam 70 rotatably disposed relative to the transmission frame 20. The crimping assembly 50 is disposed on the rotating beam 70 to drive the crimping assembly 50 to rotate. Multiple crimping assemblies 50 are provided, spaced apart along the extension direction of the rotating beam 70. The second cord 12 moves along the transmission frame 20 in a first predetermined direction. The cord splicing device further includes a rotation drive assembly operatively connected to the center of the rotating beam 70 to drive the rotating beam 70 to rotate and thereby adjust the angle between the extension direction of the rotating beam 70 and the first predetermined direction.

[0045] like Figure 1 、 Figure 7 and Figure 8As shown, in this embodiment, the crimping assembly 50 is arranged on the rotating beam 70, the center of the rotating beam 70 is located at the center of the width direction of the curtain, and the rotating beam is arranged on the transmission frame 20 through the joint rotation center axis 93. The curtain joint device also includes a controller, which controls the rotation of the rotating drive assembly according to the set parameters to drive the rotating beam 70 to rotate a preset angle, so that the extension direction of the rotating beam 70 is parallel to the inclined edge of the curtain, so that the rotating beam 70 can ensure the crimping position of the curtain when driving the crimping assembly 50 to press down. Specifically, in this embodiment, a plurality of crimping assemblies 50 are arranged at intervals along the extension direction of the rotating beam 70, and the rotating beam 70 drives each crimping assembly 50 to press down at the same time to compress the curtain.

[0046] The curtain splicer device also includes a first guide rail assembly mounted on the transmission frame 20. A rotating beam 70 is movably mounted on the first guide rail assembly to rotate along the guide direction of the first guide rail assembly. The first guide rail assembly includes a first curved track 721 and a second curved track 722, which are spaced apart. A first end of the rotating beam 70 is connected to the first curved track 721, and a second end of the rotating beam 70 is connected to the second curved track 722. A rotation drive assembly drives the rotating beam 70 to rotate about the joint's central axis of rotation 93.

[0047] like Figure 1 As shown, in this embodiment, in order to facilitate precise adjustment of the angle at which the crimping assembly 50 crimps the curtain, two arc-shaped tracks are provided. The two ends of the rotating beam 70 are movably connected to the arc-shaped tracks via sliders 82 or casters. The rotating drive assembly drives the rotating beam 70 to rotate, and the rotating beam 70 rotates along the extension direction of the arc-shaped tracks via the sliders 82 or casters. In addition, the first guide rail assembly in this embodiment can also be configured as a circular track to increase the rotation range of the rotating beam 70.

[0048] The first conveying mechanism 30 and the second conveying mechanism 40 are respectively disposed on either side of the rotating beam 70. Each of the first conveying mechanism 30 and the second conveying mechanism 40 includes a plurality of telescopic belts rotatably connected to the rotating beam 70, so as to be driven by the rotating beam 70 to telescope in a first predetermined direction. The curtain splicing device further includes: a plurality of second guide rails 81 disposed parallel to the transmission frame 20 and extending in the first predetermined direction; and a plurality of sliders 82 disposed one-to-one on the plurality of second guide rails 81 and movably disposed along the second guide rails 81. The telescopic belts are connected to the sliders 82, so as to be driven by the rotating beam 70 to telescope in the guide direction of the second guide rails 81.

[0049] like Figure 1 、 Figure 7 and Figure 8 As shown, the first conveying mechanism 30 and the second conveying mechanism 40 in this embodiment are both provided with a plurality of one-to-one corresponding telescopic belts, and the ends of the telescopic belts are connected to the rotating beam 70. When the rotating beam 70 rotates, the telescopic belt is driven to telescope along a preset direction. Specifically, each telescopic belt is arranged in a corresponding second guide rail 81. The second guide rail 81 is a groove-type structure. The telescopic belt is connected to a slider 82. The slider 82 is rotatably provided on the rotating beam 70 and can move along the extension direction of the rotating beam 70, thereby ensuring that the telescopic belt moves along the extension direction of the second guide rail 81 driven by the rotating beam 70.

[0050] The application process of the curtain joint device of the present invention is as follows: the second conveying mechanism 40 receives the cut curtain and then moves toward the crimping assembly 50. After moving to the predetermined position, the second conveying mechanism 40 stops moving. At this time, the retraction assembly 31 drives the first curtain 11 that has been crimped in front to move backward to the first preset position, and then the first crimping plate 511 presses down to fix the first curtain 11. Then the second conveying mechanism 40 drives the second curtain 12 forward to form an overlap with the first curtain 11, and the second crimping plate 521 presses down to press the overlapping position, thereby pressing the first curtain 11 and the second curtain 12 to be tightly connected.

[0051] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0052] In the curtain joint device of the present invention, the second conveying mechanism 40 transports the cut curtain to the position of the automatic crimping assembly 50. The second conveying mechanism 40 is composed of a plurality of strip-shaped telescopic belts. The width of each strip-shaped belt is usually between 40 mm and 200 mm, preferably about 80 mm. The number of strip-shaped belts is determined according to the width of the joint curtain. Each strip-shaped belt can be driven by the rotating beam 70 of the automatic crimping assembly 50 to move and retract axially according to the different angles of the cut curtain, so that the oblique edge of the curtain head can be close to the position of the crimping assembly 50 at the minimum distance. The strip-shaped telescopic belt is connected to the rotating beam 70 of the automatic crimping assembly 50 and the joint beam linear guide 92 installed below through the guide rail slider 82. The strip-shaped telescopic belt retracts and retracts synchronously with the rotation of the rotating beam 70.

[0053] The automatic crimping assembly 50 is located at the center of the joint rotation. The automatic crimping assembly 50 rotates according to the required cutting angle to achieve automatic jointing. The rotation angle range of the automatic crimping assembly 50 is generally 15° to 90°.

[0054] The retraction assembly 31 transports the curtain fabric with the completed joint out of the automatic crimping assembly 50. The retraction assembly 31 is connected to the first conveying mechanism 30. The first conveying mechanism 30 is also composed of a plurality of strip-shaped telescopic belts. The width of each strip-shaped belt is usually between 40 mm and 200 mm, preferably about 80 mm. Each strip-shaped belt can be driven by the rotating beam 70 of the automatic crimping assembly 50 to move and retract along the axial direction according to the different angles of the cut curtain fabric, so that the tail bevel of the curtain fabric can be close to the joint position at the minimum distance. The strip-shaped telescopic belt is connected to the rotating beam 70 of the automatic crimping assembly 50 and the joint beam linear guide 92 installed below through the guide rail slider 82. The strip-shaped telescopic belt retracts and retracts synchronously with the rotation of the rotating beam 70.

[0055] When used specifically, the main process steps are as follows:

[0056] 1) Realize the telescopic movement of multiple strip telescopic belts:

[0057] like Figures 4 to 6 As shown, a schematic diagram of the strip belt extension of the second conveying mechanism 40 and the first conveying mechanism 30. The second conveying mechanism 40 includes a feeding drive reduction motor, a feeding conveyor belt active roller, a feeding rear passive roller 13, a feeding tensioning roller 14, a feeding front fixed roller, a feeding mobile frame 19, a feeding mobile frame small roller 18, a feeding mobile frame passive roller 15, a feeding mobile frame passive roller 15, a feeding strip telescopic belt 17, and a feeding slider 82 guide rail. Similarly, the first conveying mechanism 30 includes a discharge drive reduction motor, a discharge conveyor belt active roller 32, a feeding rear passive roller 33, a discharge tensioning roller 34, a feeding front fixed roller, a discharge mobile frame 39, a discharge mobile frame small roller 38, a discharge mobile frame passive roller 35, a discharge mobile frame passive roller 35, a discharge telescopic belt, and a discharge slider 82 guide rail.

[0058] The second conveying mechanism 40 is composed of a plurality of strip-shaped telescopic belts. The rear end of the strip-shaped telescopic belt is driven by a common integral active roller, and the bottom of the front end is fixed by front fixed rollers fixed on the transmission frame 20 at different front and rear positions. The upper part of the front end passes through the small roller of the mobile frame, the passive roller of the mobile frame, and the passive roller of the mobile frame installed on the mobile frame, and the mobile frame can move forward and backward along the axial guide rail of the slider 82 installed on the transmission frame 20. Similarly, the first conveying mechanism 30 is composed of a plurality of unloading strip-shaped telescopic belts 37. The rear end of the strip-shaped telescopic belt is driven by a common integral active roller, and the bottom of the front end is fixed by front fixed rollers fixed on the frame at different front and rear positions. The upper part of the front end passes through the small roller of the mobile frame, the passive roller of the mobile frame, and the passive roller of the mobile frame installed on the mobile frame, and the mobile frame can move forward and backward along the axial guide rail of the slider 82 installed on the frame.

[0059] The unloading movable frame 39 of the second conveying mechanism 40 is connected to the corresponding feeding movable frame 19 of the first conveying mechanism 30 by corresponding connecting plates. The connecting plate is connected to the slider 82 on the joint beam linear guide rail 92 installed below the joint beam of the automatic crimping assembly 50 through the small joint rotation center axis. When the automatic crimping assembly 50 is driven by the joint rotation drive reduction motor to rotate around the joint rotation center axis according to the joint angle, it drives the guide rail slider 82 below the joint beam to move axially along the guide rail. At the same time, it drives the joint rotation center axis to move forward and backward along the corresponding slider 82 and the slider 82 guide rail respectively by the corresponding connecting plates, thereby realizing the telescopic movement of multiple strip telescopic belts. This allows the oblique edges of the curtain fabric head and tail to be actively transported by multiple strip telescopic belts to the minimum distance close to the joint position.

[0060] The above actions realize the telescopic movement of the multiple strip-shaped telescopic belts of the second conveying mechanism 40 and the first conveying mechanism 30.

[0061] 2) Process steps to achieve active joint:

[0062] like Figures 7 to 11 Schematic diagram of the automatic joint action shown. Figure 9 Before the splicing operation, the cord fabric head and cord fabric tail to be crimped are located in front of and behind the second conveying mechanism 40 and the first conveying mechanism 30 respectively. Figure 10 This is a schematic diagram of the retraction of the curtain fabric tail. Driven by the first conveyor mechanism 30, the retraction plate 311, and the retraction cylinder 312, the curtain fabric tail moves backward, bringing it completely against the front positioning baffle 60 and forming a certain drum shape, thus achieving completely accurate positioning of the curtain fabric tail. Figure 11 Schematic diagram of the action of the first pressing plate 511. The first pressing plate 511 falls down under the drive of the first driving cylinder 512, preparing for the positioning of the material head. Figure 12 The second conveying mechanism 40 conveys the cord fabric head to the first crimping plate 511 and causes the cord fabric head to arch up to form a drum shape, thus achieving completely accurate positioning of the head. Figure 13 The second driving cylinder 522 extends to drive the second pressing plate 521 to release the material, pressing the overlapping ends of the cord fabric together.

[0063] The above actions realize the automatic positioning, overlapping and pressing of the head and tail of the curtain fabric.

[0064] The outstanding feature of this invention is that the first conveyor mechanism 30 and the second conveyor mechanism 40 extend and retract in conjunction with the rotation of the crimping assembly 50. During splicing, the bevel edge of the cord is actively transported directly to the splicing location by the strip belt, automating the cutting and splicing of small-angle fiber cords. This improves splicing quality, reduces labor intensity, and achieves automated production.

[0065] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0066] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorized specification. In all examples shown and discussed herein, any specific values should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0067] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0068] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0069] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0070] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A curtain joint device for connecting a first curtain (11) and a second curtain (12), characterized in that: The cord joint device comprises: Transmission frame (20); a first conveying mechanism (30), the first conveying mechanism (30) being arranged on the transmission frame (20), and the first curtain fabric (11) being arranged on the first conveying mechanism (30); a second conveying mechanism (40), the second conveying mechanism (40) being arranged on the transmission frame (20) to drive the second curtain (12) to move toward the first curtain (11) and to make at least a portion of the second curtain (12) overlap with the first curtain (11); a crimping assembly (50), the crimping assembly (50) being movably arranged relative to the transmission frame (20) to press the overlapping portion of the first curtain (11) and the second curtain (12) to connect the first curtain (11) and the second curtain (12); The cord joint device further comprises: A rotating beam (70), the rotating beam (70) being rotatably arranged relative to the transmission frame (20), wherein the crimping assembly (50) is arranged on the rotating beam (70) to drive the crimping assembly (50) to rotate; The first conveying mechanism (30) and the second conveying mechanism (40) are respectively arranged on both sides of the rotating beam (70), and the first conveying mechanism (30) and the second conveying mechanism (40) each include a plurality of telescopic belts, and the plurality of telescopic belts are rotatably connected to the rotating beam (70) so as to telescopically move along a first preset direction under the drive of the rotating beam (70).

2. The cord splicing device according to claim 1, characterized in that: The first transmission mechanism (30) comprises: A retraction assembly (31), wherein the retraction assembly (31) is arranged on the transmission frame (20) to drive the first curtain (11) to move to a first preset position, wherein the second transmission mechanism (40) drives the second curtain (12) to move to a second preset position, and at least a portion of the first curtain (11) at the first preset position and the second curtain (12) at the second preset position overlap in the vertical direction.

3. The cord splicing device according to claim 2, characterized in that: The cord joint device further comprises: A positioning baffle (60) is provided on the transmission frame (20) to stop the first curtain (11) from moving when the retraction assembly (31) drives the first curtain (11) to move to the first preset position.

4. The cord splicing device according to claim 2, characterized in that: The fallback component (31) comprises: A retraction plate (311), the retraction plate (311) being movably arranged on the transmission frame (20); A retraction cylinder (312) is connected to the retraction plate (311) to drive the retraction plate (311) to move, and the retraction plate (311) moves to drive the second curtain (12) to move closer to the first curtain (11).

5. The cord splicing device according to claim 2, characterized in that: The cord joint device further comprises: a first pressing plate (511), the first pressing plate (511) being movably arranged relative to the first conveying mechanism (30) so as to fix the first curtain (11) at the first preset position when the first curtain (11) moves to the first preset position; A first driving cylinder (512) is drivingly connected to the first pressing plate (511) to drive the first pressing plate (511) to press the first curtain (11) when the first curtain (11) moves to the first preset position.

6. The cord splicing device according to claim 5, characterized in that: The crimping assembly (50) comprises: a second pressing plate (521), the second pressing plate (521) being movably arranged relative to the second conveying mechanism (40) so as to press the second curtain (12) onto the first curtain (11) when the second curtain (12) moves to the second preset position; A second driving cylinder (522), the second driving cylinder (522) is drivingly connected to the second pressing plate (521).

7. The cord splicing device according to claim 2, characterized in that: There are a plurality of crimping assemblies (50), and the plurality of crimping assemblies (50) are arranged at intervals along the extension direction of the rotating beam (70), wherein the second curtain (12) moves along a first preset direction on the transmission frame (20), and the curtain joint device further comprises: A rotation drive assembly is connected to the center drive of the rotation beam (70) to drive the rotation beam (70) to rotate so as to adjust the angle between the extension direction of the rotation beam (70) and the first preset direction.

8. The cord splicing device according to claim 7, characterized in that: The cord joint device further comprises: A first guide rail assembly is provided above and below the transmission frame (20), and the rotating beam (70) is movably provided on the first guide rail assembly to rotate along the guide direction of the first guide rail assembly.

9. The cord splicing device according to claim 8, characterized in that: The curtain joint device further comprises a joint rotation center shaft (93), the joint rotation center shaft (93) being rotatably disposed on the transmission frame (20), the rotating beam (70) being connected to the transmission frame (20) via the joint rotation center shaft (93), and the first guide rail assembly comprising: A first arc track (721) and a second arc track (722) are symmetrically arranged with the joint rotation center axis (93) as the center, wherein the first end of the rotating beam (70) is connected to the first arc track (721), and the second end of the rotating beam (70) is connected to the second arc track (722), and the rotation drive component drives the rotating beam (70) to rotate through the joint rotation center axis (93), so that the rotating beam (70) rotates on the first arc track (721) and the second arc track (722).

10. The cord splicing device according to claim 1, wherein: The cord joint device further comprises: a plurality of second guide rails (81), the plurality of second guide rails (81) being arranged in parallel on the transmission frame (20), and the second guide rails (81) extending along the first preset direction; A plurality of sliders (82), wherein the plurality of sliders (82) are arranged on the plurality of second guide rails (81) in a one-to-one correspondence and are movably arranged along the second guide rails (81); The telescopic belt is connected to the slider (82) so as to be telescopically movable along the guide direction of the second guide rail (81) under the drive of the rotating beam (70).

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