Automatic paper strip collecting device

Abstract

An automatic paper tape take-up device includes a frame, an unwinding mechanism, an automatic take-up mechanism, an automatic paper end conveying mechanism, an automatic cutting mechanism, an automatic dispensing mechanism, and a controller. The automatic take-up mechanism includes a take-up frame and a take-up reel. A first drive mechanism is provided on the take-up frame, and a positioning structure is also provided on the take-up frame. A detection sensor for detecting the thickness of the paper tape on the take-up reel is provided on the take-up frame. The automatic paper end conveying mechanism includes a feeding arm with one end rotatably mounted to the frame and a second drive mechanism for driving the feeding arm to rotate. A mounting frame is fixedly provided at the other end of the feeding arm. A gap for the paper tape to pass through is provided between the mounting frame and the feeding arm. A clamping block is slidably mounted on the mounting frame. The clamping block is driven to slide by a third drive mechanism. The thickness of the feeding arm is less than the thickness of the cavity of the take-up reel.

Description

Technical Field

[0001] This application relates to the field of radio frequency connector processing, and more specifically, to an automatic paper tape collection device for paper tape during the radio frequency connector processing. Background Technology

[0002] In the production process of RF connectors, one step is to fix the RF connectors onto paper tape, and then roll up the paper tape with the RF connectors fixed on it to complete the packaging.

[0003] Currently, manual assistance is required during the paper tape winding process. In addition to changing the material tray, the manual operation mainly includes firstly, at the beginning of winding, the paper end needs to be fixed to the winding material tray manually. Secondly, after a material tray is full, the paper tape needs to be cut and glue applied to the back of the paper tape to fix the entire paper tape.

[0004] The most complex part of the operation is fixing the paper end to the winding tray at the beginning of the winding process. Because the paper tape is narrow, the thickness of the winding tray cavity is also relatively small. The small gap makes manual operation more troublesome, so it takes a lot of time to process each time the tray is replaced.

[0005] Furthermore, during winding, as the number of turns of the paper tape on the tray increases, the tension required to tighten the paper tape on the tray also increases. Otherwise, the paper tape wound on the tray will become loose. Although existing winding devices are equipped with tension adjustment mechanisms, their purpose is only to ensure tension stability during winding and cannot achieve the goal of increasing tension.

[0006] Therefore, those skilled in the art need to improve existing automatic paper tape receiving devices to overcome the aforementioned defects. Summary of the Invention

[0007] The main purpose of this application is to provide an automatic paper tape take-up device, in which the operator only needs to assist in changing the material tray, and the rest is completed automatically. Moreover, the tension is automatically controlled throughout the entire winding process to ensure that the paper tape is dense and not loose after winding.

[0008] To achieve the above objectives, in a first aspect, this application provides an automatic paper tape take-up device, including a frame, an unwinding mechanism, an automatic rewinding mechanism, and also an automatic paper head conveying mechanism, an automatic cutting mechanism, an automatic glue dispensing mechanism, and a controller. The automatic winding mechanism includes a winding frame and a winding tray detachably mounted on the winding frame. The winding frame is provided with a first driving mechanism for driving the winding tray to rotate. The winding frame is also provided with a positioning structure for fixing the paper head to the inner wall of the winding tray. The winding frame is provided with a detection sensor for detecting the thickness of the paper tape on the winding tray. The automatic paper feeding mechanism includes a feeding arm with one end rotatably connected to the frame, a second driving mechanism for driving the feeding arm to rotate, a mounting frame fixedly mounted at the other end of the feeding arm, the mounting frame having a gap between the feeding arm for the paper tape to pass through, a clamping block slidably mounted on the mounting frame, the clamping block being driven to slide by a third driving mechanism, and the thickness of the feeding arm being less than the thickness of the cavity of the take-up reel; The feeding arm has an initial winding position and a winding completion position. The automatic cutting mechanism is located below the winding completion position. A first limit sensor and a second limit sensor are respectively installed on the frame. The controller is configured to control the second drive mechanism based on the detection signal of the first limit sensor to rotate the feeding arm to the initial winding position, control the positioning structure to fix the paper head to the inner wall of the winding tray, and simultaneously control the first drive mechanism to rotate the winding tray; based on the detection sensor detecting the thickness of the paper tape, control the second drive mechanism to rotate the feeding arm from the initial winding position to the winding completion position; based on the detection signal of the second limit sensor, control the first drive mechanism to stop, control the automatic dispensing mechanism to dispense glue onto the paper tape, control the third drive mechanism to clamp the paper tape between the clamping block and the feeding arm, and control the automatic cutting mechanism to cut the paper tape.

[0009] A further improvement is that the feeding arm includes a feeding arm body, an extension arm slidably disposed with respect to the feeding arm body, and a fourth drive mechanism disposed between the feeding arm body and the extension arm. A tension detection sensor for detecting the tension of the paper tape is provided on the frame. The controller is configured to compare the detection value of the tension detection sensor with a preset threshold. When the detection value is greater than the preset threshold, the controller controls the fourth drive mechanism to retract the extension arm.

[0010] A further improvement is that the fourth drive mechanism includes a rack disposed on the extension arm, a drive gear rotatably disposed on the feeding arm body and meshing with the rack, and a drive motor for driving the drive gear to rotate.

[0011] A further improvement is that the free end of the feeding arm is rotatably equipped with a guide roller.

[0012] A further improvement is that a mandrel is rotatably mounted on the winding frame, the mandrel engaging with the center hole of the winding reel, and the first drive mechanism includes a winding motor located at the bottom of the winding frame and a transmission mechanism connecting the winding motor and the mandrel.

[0013] A further improvement is that the surface of the free end of the feeding arm that contacts the take-up reel has an arc shape.

[0014] A further improvement is that the positioning structure includes a slidably disposed positioning clamping block and a positioning cylinder for driving the positioning clamping block to slide.

[0015] A further improvement is that the second drive mechanism is a variable frequency feeding motor, and the third drive mechanism is a clamping cylinder connected to the clamping block.

[0016] A further improvement is that the winding frame is also provided with a winding locking mechanism, which includes a support frame slidably disposed on the winding frame and a clamping wheel rotatably disposed on the support frame. The support frame is driven to slide by a locking cylinder.

[0017] A further improvement is that the automatic cutting mechanism includes a lifting seat slidably mounted on the frame, a lifting cylinder for driving the lifting seat to slide, cutting shears mounted on the lifting seat, and a cutting drive mechanism for driving the cutting shears to move.

[0018] The automatic paper tape take-up device provided by this invention has the following advantages compared with the prior art: First, it is equipped with a feeding arm that can position the paper tape during cutting. In the initial stage of take-up, it can automatically feed the paper tape end into the narrow take-up tray. Moreover, it rotates as the take-up thickness increases throughout the take-up process, thereby increasing the tension force to maintain the take-up density. In addition, it is equipped with an automatic cutting mechanism and an automatic glue dispensing mechanism to realize automatic cutting and automatic glue dispensing of the paper tape, completely replacing the original manual operation, saving labor costs and improving efficiency. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings: Figure 1 This is a top view of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is the three-dimensional representation of the present invention. Figure 1 ; Figure 4 This is the three-dimensional representation of the present invention. Figure 2 ; Figure 5 This is the three-dimensional representation of the present invention. Figure 3 ; Figure 6 yes Figure 5 Enlarged view of point A.

[0020] The components include: 1. Frame; 2. Unwinding mechanism; 3. Automatic cutting mechanism; 4. Automatic dispensing mechanism; 5. Rewinding frame; 6. Rewinding tray; 7. Mandrel; 8. Rewinding motor; 9. Positioning clamping block; 10. Positioning cylinder; 11. Feeding arm body; 12. Extension arm; 13. Mounting frame; 14. Clamping block; 15. Variable frequency feeding motor; 16. Clamping cylinder; 17. Arc-shaped surface; 18. Rewinding locking mechanism. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0022] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0023] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0024] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0025] In addition, the term "multiple" should mean two or more.

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] like Figures 1-6 As shown, an automatic paper tape take-up device includes a frame 1, an unwinding mechanism 2, an automatic take-up mechanism, an automatic paper end conveying mechanism, an automatic cutting mechanism 3, an automatic glue dispensing mechanism 4, and a controller. The automatic winding mechanism includes a winding frame 5 and a winding tray 6 detachably mounted on the winding frame 5. The winding frame 5 is provided with a first driving mechanism for driving the winding tray 6 to rotate. The winding frame 5 is also provided with a positioning structure for fixing the paper head to the inner wall of the winding tray 6. The winding frame 5 is provided with a detection sensor for detecting the thickness of the paper tape on the winding tray 6. The automatic paper feeding mechanism includes a feeding arm with one end rotatably connected to the frame 1, a second driving mechanism for driving the feeding arm to rotate, and a mounting frame 13 fixedly provided at the other end of the feeding arm. The mounting frame 13 has a gap between the feeding arm and the paper tape for the paper tape to pass through. A clamping block 14 is slidably provided on the mounting frame 13. The clamping block 14 is driven to slide by a third driving mechanism. The thickness of the feeding arm is less than the thickness of the cavity of the take-up reel 6. The feeding arm has an initial winding position and a winding completion position. The automatic cutting mechanism is located below the winding completion position. A first limit sensor and a second limit sensor are respectively installed on the frame 1. The controller is configured to control the second drive mechanism based on the detection signal of the first limit sensor to rotate the feeding arm to the initial winding position, control the positioning structure to fix the paper head to the inner wall of the winding tray 6, and simultaneously control the first drive mechanism to rotate the winding tray 6; based on the detection sensor detecting the thickness of the paper tape, control the second drive mechanism to rotate the feeding arm from the initial winding position to the winding completion position; based on the detection signal of the second limit sensor, control the first drive mechanism to stop, control the automatic glue dispensing mechanism 4 to dispense glue onto the paper tape, control the third drive mechanism to clamp the paper tape between the clamping block 14 and the feeding arm, and control the automatic cutting mechanism 3 to cut the paper tape.

[0028] Overall control process: First, the second drive mechanism drives the feeding arm to rotate towards the winding reel 6 until it is detected by the first limit sensor. At this point, the end of the feeding arm is pressed against the winding wall of the winding reel 6. The controller then controls the positioning structure to position the paper tip on the winding reel 6. Simultaneously, the third drive mechanism is controlled to loosen the paper tape, and then the first drive mechanism is controlled to rotate the winding reel 6, thus winding the paper tape onto the winding reel 6. In the initial winding stage, the feeding arm presses against the winding wall of the winding reel 6 to prevent the paper tape from loosening. As the thickness of the roll increases during winding, the required tension also increases. Therefore, the thickness of the paper tape is detected by the sensor, controlling the feeding arm to rotate away from the winding reel 6, i.e., away from the winding reel 6, until the winding is complete. The larger the rotation angle, the greater the distance the feeding arm pushes the paper tape out, thus increasing the tension of the paper tape during winding. The tension during the winding process ensures the paper tape is tightly wrapped around the winding reel 6, preventing it from becoming loose. Furthermore, the detection sensor uses a German SICK medium-range laser rangefinder to detect the diameter of the paper roll in real time. A pre-set parameter is used to rotate the feeding arm at a specific angle when the paper roll diameter increases by a certain value. This ensures that the feeding arm rotates from the initial winding position to the completed winding position from the start to the end of winding, thus completing the entire winding operation of the reel. When the winding operation is completed, i.e., the feeding arm is detected by the second limit sensor, the controller stops the first drive mechanism, i.e., the winding reel 6 stops rotating. In addition, the automatic dispensing device dispenses glue to the end of the paper tape. After dispensing, the clamping block 14 clamps part of the paper tape on the feeding arm, and the automatic cutting mechanism 3 cuts the paper tape. After manually replacing the winding reel 6, the above actions are repeated to achieve automatic paper tape winding.

[0029] To prevent the paper tape from breaking during winding due to excessive tension, the feeding arm includes a feeding arm body 11, an extension arm 12 slidably disposed with respect to the feeding arm body 11, and a fourth drive mechanism disposed between the feeding arm body 11 and the extension arm 12. The frame 1 is equipped with a tension detection sensor for detecting the tension of the paper tape. The controller is configured to compare the detection value of the tension detection sensor with a preset threshold. When the detection value is greater than the preset threshold, the controller controls the fourth drive mechanism to retract the extension arm 12. Thus, when the detected tension is greater than the paper tape's bearing capacity, the length of the feeding arm is reduced, thereby reducing the tension and preventing the paper tape from breaking.

[0030] To facilitate control of the length of the feeding arm, the fourth drive mechanism includes a rack mounted on the extension arm 12, a drive gear rotatably mounted on the feeding arm body 11 and meshing with the rack, and a drive motor that drives the drive gear to rotate. When the tension is too high, the drive motor drives the drive gear to rotate, and the extension arm 12 is retracted under the cooperation of the drive gear and the rack, thereby preventing the paper tape from breaking.

[0031] To reduce friction during the paper tape winding process, a guide roller is rotatably installed at the free end of the feeding arm. By setting the guide roller, sliding friction is changed to rolling friction, thereby reducing friction and preventing paper tape breakage, as well as reducing the load on the motor.

[0032] In this embodiment, preferably, a mandrel 7 is rotatably mounted on the winding frame 5, and the mandrel 7 cooperates with the center hole of the winding tray 6. The first driving mechanism includes a winding motor 8 disposed at the bottom of the winding frame 5 and a transmission mechanism connecting the winding motor 8 and the mandrel 7. The specific structure of the transmission mechanism is not an innovation of this invention. Any structure that can perform transmission in the prior art can be used, such as gear transmission structure, belt pulley transmission structure, sprocket transmission structure, etc.

[0033] In order to make the feeding arm and the take-up reel 6 fit more closely when automatically feeding the paper tape head, the free end of the feeding arm has an arc-shaped surface 17 on the surface that contacts the take-up reel 6.

[0034] In this embodiment, preferably, the positioning structure includes a slidably disposed positioning clamping block 9 and a positioning cylinder 10 that drives the positioning clamping block 9 to slide. The positioning cylinder 10 drives the positioning clamping block 9 to slide, thereby achieving the positioning of the paper head. When winding, after winding one turn, it is driven by the positioning cylinder 10 to reset, thereby avoiding interference caused by the positioning clamping block 9 during subsequent winding.

[0035] In this embodiment, preferably, the second driving mechanism is a variable frequency feeding motor 15, and the third driving mechanism is a clamping cylinder 16 connected to the clamping block 14. The controller controls the rotation angle of the motor shaft of the variable frequency feeding motor 15, thereby controlling the rotation angle of the feeding arm, thereby achieving the purpose of adjusting the tension. As for the clamping block 14, its purpose is to automatically cut off the paper tape and position it during the cutting process. When the paper tape is cut off during winding, it is separated from the feeding arm, thereby ensuring that the paper tape can smoothly pass through the gap between the clamping block 14 and the feeding arm to achieve winding.

[0036] After winding is completed, it needs to be cut. After cutting, the paper tape wound on the winding reel 6 loses its tension. To prevent it from loosening, the winding frame is also equipped with a winding locking mechanism 18. The winding locking mechanism 18 includes a support frame slidably disposed on the winding frame and a clamping wheel rotatably disposed on the support frame. The support frame is driven to slide by a locking cylinder. The clamping wheel is driven to slide along the radial direction of the winding reel 6 by the locking cylinder to achieve the clamping of the paper tape until the glued paper tape is fixed. After the glued paper tape is fixed, the entire wound paper tape will not loosen.

[0037] like Figure 6 As shown, in order to achieve automatic paper tape cutting, the automatic cutting mechanism 3 includes a lifting seat slidably mounted on the frame 1, a lifting cylinder that drives the lifting seat to slide, cutting scissors mounted on the lifting seat, and a cutting drive mechanism that drives the cutting scissors to move. Specifically, the cutting drive mechanism can be a cutting cylinder. The cylinder body of the cutting cylinder is rotatably mounted on the frame 1, and the piston rod of the cutting cylinder is rotatably connected to one side of the cutting scissors. The other side of the cutting scissors is fixed relative to the frame 1. Thus, when cutting is required, the lifting cylinder controls the cutting scissors to rise to the cutting position, and then the cutting drive mechanism drives the scissors to perform the cutting action. After completion, the lifting cylinder resets.

[0038] Furthermore, the automatic dispensing mechanism 4 includes a dispensing machine body and a base that cooperates with the body. The base is equipped with a positioning component with a V-shaped opening. The base is slidably connected to a first sliding component and a second sliding component. The second sliding component is slidably mounted on the take-up frame 5. The first and second sliding components are driven to slide by a moving cylinder. By adjusting the sliding mechanism, it can be adjusted for different take-up reels 6. It should be noted that for the same model of take-up reel 6, with a fixed length of the paper tape, the final path of the paper tape is consistent. Therefore, dispensing only requires moving in one direction. When the reel changes, the dispensing position needs to be adjusted beforehand.

[0039] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An automatic paper tape take-up device, comprising a frame, an unwinding mechanism, and an automatic take-up mechanism, characterized in that, It also includes an automatic paper feeding mechanism, an automatic cutting mechanism, an automatic dispensing mechanism, and a controller; The automatic winding mechanism includes a winding frame and a winding tray detachably mounted on the winding frame. The winding frame is provided with a first driving mechanism for driving the winding tray to rotate. The winding frame is also provided with a positioning structure for fixing the paper head to the inner wall of the winding tray. The winding frame is provided with a detection sensor for detecting the thickness of the paper tape on the winding tray. The automatic paper feeding mechanism includes a feeding arm with one end rotatably mounted to the frame, a second driving mechanism for driving the feeding arm to rotate, a mounting frame fixedly mounted at the other end of the feeding arm, a gap between the mounting frame and the feeding arm for the paper tape to pass through, a clamping block slidably mounted on the mounting frame, the clamping block being driven to slide by a third driving mechanism, and the thickness of the feeding arm being less than the thickness of the cavity of the take-up reel; The feeding arm has an initial winding position and a winding completion position. The automatic cutting mechanism is located below the winding completion position. A first limit sensor and a second limit sensor are respectively installed on the frame. The controller is configured to control the second drive mechanism based on the detection signal of the first limit sensor to rotate the feeding arm to the initial winding position, control the positioning structure to fix the paper head to the inner wall of the winding tray, and simultaneously control the first drive mechanism to rotate the winding tray; and based on the thickness of the paper tape detected by the detection sensor, control the second drive mechanism to rotate the feeding arm from the initial winding position to the winding completion position. Based on the detection signal from the second limit sensor, the first drive mechanism is controlled to stop, the automatic dispensing mechanism is controlled to dispense glue onto the paper tape, the third drive mechanism is controlled to clamp the paper tape between the clamping block and the feeding arm, and the automatic cutting mechanism is controlled to cut the paper tape.

2. The automatic paper tape receiving device as described in claim 1, characterized in that: The feeding arm includes a feeding arm body, an extension arm slidably disposed with respect to the feeding arm body, and a fourth drive mechanism disposed between the feeding arm body and the extension arm. A tension detection sensor for detecting the tension of the paper tape is provided on the frame. The controller is configured to compare the detection value of the tension detection sensor with a preset threshold. When the detection value is greater than the preset threshold, the controller controls the fourth drive mechanism to retract the extension arm.

3. The automatic paper tape receiving device as described in claim 2, characterized in that: The fourth drive mechanism includes a rack mounted on the extension arm, a drive gear rotatably mounted on the feeding arm body and meshing with the rack, and a drive motor that drives the drive gear to rotate.

4. The automatic paper tape receiving device as described in claim 1, characterized in that: The free end of the feeding arm is rotatably equipped with a guide roller.

5. An automatic paper tape receiving device as described in claim 1, characterized in that: A mandrel is rotatably mounted on the winding frame, and the mandrel engages with the center hole of the winding spool. The first drive mechanism includes a winding motor located at the bottom of the winding frame and a transmission mechanism connecting the winding motor and the mandrel.

6. An automatic paper tape receiving device as described in claim 1, characterized in that: The surface of the free end of the feeding arm that contacts the take-up reel has an arc shape.

7. An automatic paper tape receiving device as described in claim 1, characterized in that: The positioning structure includes a slidably disposed positioning clamping block and a positioning cylinder for driving the positioning clamping block to slide.

8. An automatic paper tape receiving device as described in claim 1, characterized in that: The second drive mechanism is a variable frequency feeding motor, and the third drive mechanism is a clamping cylinder connected to the clamping block.

9. An automatic paper tape receiving device as described in claim 1, characterized in that: The winding frame is also provided with a winding locking mechanism, which includes a support frame slidably disposed on the winding frame and a clamping wheel rotatably disposed on the support frame. The support frame is driven to slide by a locking cylinder.

10. An automatic paper tape receiving device as described in claim 1, characterized in that: The automatic cutting mechanism includes a lifting seat slidably mounted on the frame, a lifting cylinder for driving the lifting seat to slide, cutting shears mounted on the lifting seat, and a cutting drive mechanism for driving the cutting shears to move.

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