Four-wire drawing machine
Through the servo motor driving the sliding seat and installation box, and the transmission of gears, racks, guide rods and guide sliders, the tremor problem of the four-wire puller during the transmission process is solved, and more stable rolling of branch materials is achieved, improving the rolling quality of Christmas tree branches and leaves.
Patent Information
- Application Number
- CN202422128914.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-31
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-31
AI Technical Summary
When used by the existing four-wire strip machine, the automatic rolling structure of clamping raw materials is moved through transmission and transmission of the reducer motor and chain structure, resulting in tremor, affecting the stability of the automatic rolling mechanism and the rolling quality of the Christmas tree branches and leaves.
The sliding seat and installation box are driven to move forward and backward simultaneously, and are driven with gears, racks, guide rods and guide sliders to ensure the smoothness of the transmission process, and the stable clamping and rolling of branch materials is achieved through the jaw rotation module.
It improves the stability and quality of the rolling of branch materials, ensures the rolling effect of Christmas tree branches and leaves, and avoids the occurrence of tremor.
Smart Images
Figure CN223087317U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of processing equipment, in particular to a four-line drawing machine. Background Art
[0002] Decorative Christmas trees have become very common decorative items during Christmas, which better sets off the festive atmosphere and meets people's usage requirements. When manufacturing decorative Christmas trees, during the production process of the branches and leaves of the Christmas tree, an automatic winding mechanism is required to wind the straight raw materials into the branch and leaf structure, and then the wound branches and leaves can be further made into a Christmas tree.
[0003] When the existing four-line drawing machine is in use, the automatic winding structure for clamping the raw materials moves through the transmission of a reduction motor and a chain structure. During the movement of the winding structure, tremors will occur, affecting the movement stability of the automatic winding mechanism, and further affecting the winding quality of the branches and leaves of the Christmas tree. Content of the Utility Model
[0004] The utility model provides a four-line drawing machine to solve the above technical problems.
[0005] To achieve the above object, the utility model provides the following technical solution: A four-line drawing machine, including a cross bar extending in the front-back direction, a sliding seat, a servo motor, a planetary reducer, a rack, a gear, a jaw rotation module and two cross bar brackets. The two cross bar brackets are respectively fixedly installed on the lower sides of the front and rear ends of the cross bar. The rack is installed on the top of the cross bar in the front-back direction. The sliding seat includes a top plate and two side plates. The left and right ends of the top plate are respectively fixedly connected to the upper ends of the two side plates. A first motor installation hole is opened on the top plate. The planetary reducer is fixedly installed on the top plate, and the output end of the planetary reducer passes downward through the first motor installation hole to be connected with the gear. The output end of the servo motor extends downward to be connected with the input end of the planetary reducer. Guide rods extending in the front-back direction are installed on both sides of the cross bar. Guide sliders extending in the front-back direction are installed on the inner side walls of the two side plates. The cross bar is located between the two side plates. The gear meshes with the rack. The guide sliders are slidably sleeved outside the guide rods in the front-back direction. The jaw rotation module includes an installation box, a plurality of jaws, a plurality of jaw driving members and a rotation driving assembly. The installation box is installed at the lower ends of the two side plates and below the cross bar. A plurality of jaw installation holes are opened on the front wall of the installation box. The jaws are rotatably installed in the jaw installation holes. The jaw driving members are installed on the installation box and used to drive the jaws to open and close. The rotation driving assembly is installed on the installation box and used to drive the jaws to rotate.
[0006] Preferably, the jaw rotation module further includes an annular protective cylinder, which is installed on the front wall of the installation box and covers the jaws.
[0007] Preferably, the gear is a spur gear or a helical gear, and correspondingly, the rack is a straight rack or a helical rack.
[0008] Preferably, the four-wire drawing machine further includes two crossbar brackets, which are respectively fixedly installed on the lower sides of the front and rear ends of the crossbar.
[0009] Preferably, a placement groove is installed on one side of the crossbar between the two crossbar brackets. A drag chain is placed in the placement groove. A wire threading pipe is installed on the sliding seat, and a support arm is installed at the upper end of the wire threading pipe. The support arm and the drag chain are connected by bolts.
[0010] Preferably, vertical limit plates are respectively installed at the front and rear ends of the crossbar, and the limit plates face the sliding seat.
[0011] Compared with the prior art, the four-wire drawing machine of the present utility model drives the sliding seat and the installation box to move synchronously back and forth by a servo motor, and the speed adjustment is more flexible and controllable. In addition, the transmission is carried out in cooperation with the gear, the rack, the guide rod and the guide slider, making the transmission process smoother and effectively avoiding the occurrence of tremors, so as to better ensure the winding quality of the tree branch materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 is an exploded view of the four-wire drawing machine of the present utility model from one angle.
[0013] Figure 2 is Figure 1 a partial enlarged view of part A in
[0014] Figure 3 is the first partial structural diagram of the four-wire drawing machine of the present utility model.
[0015] Figure 4 is a partial cross-sectional view of the four-wire drawing machine of the present utility model.
[0016] Figure 5 is the second partial structural diagram of the four-wire drawing machine of the present utility model.
[0017] Figure 6 is another partial cross-sectional view of the four-wire drawing machine of the present utility model.
[0018] Figure 7 is the third partial structural diagram of the four-wire drawing machine of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0020] Please refer to Figures 1-7 , the four-wire tensioning machine 100 of the present utility model includes a cross bar 10 running in the front-rear direction, a sliding seat 20 installed on the cross bar 10, a servo motor 30, a planetary reducer 35, a rack 40, a gear 45, a jaw rotation module 50 and two cross bar brackets 60.
[0021] The two cross bar brackets 60 are respectively fixedly installed on the lower sides of the front and rear ends of the cross bar 10. The rack 40 is installed on the top of the cross bar 10 in the front-rear direction. The sliding seat 20 includes a top plate 21 and two side plates 22. The left and right ends of the top plate 21 are respectively fixedly connected to the upper ends of the two side plates 22. A first motor mounting hole 211 is formed in the top plate 21. The planetary reducer 35 is fixedly installed on the top plate 21, and the output end of the planetary reducer 35 passes downward through the first motor mounting hole 211 to be connected to the gear 45. The output end of the servo motor 30 extends downward to be connected to the input end of the planetary reducer 41. Guide rods 12 running in the front-rear direction are installed on both side surfaces of the cross bar 10. Guide sliders 23 running in the front-rear direction are installed on the inner side walls of the two side plates 22. The cross bar 10 is disposed between the two side plates 22. The gear 50 meshes with the rack 11. The guide slider 23 is slidably sleeved on the outside of the guide rod 12 in the front-rear direction.
[0022] The gripper rotation module 50 includes an installation box 51, a plurality of grippers 52, a gripper mounting base 53, a plurality of gripper driving members, and a rotation driving assembly. The gripper driving member is a cylinder 54. The installation box 51 is located below the cross bar 10. The top of the installation box 51 is fixedly connected to the lower ends of the two side plates 22. A plurality of gripper mounting holes 511 and cylinder mounting holes 512 are respectively formed in the front wall and the rear wall of the installation box 51. The cylinder 54 is fixedly installed on the rear wall of the installation box 51, and the output shaft of the cylinder 54 passes forward through the cylinder mounting hole 512. The gripper mounting base 53 includes a mounting base 531, a shaft cylinder 532 horizontally connected to the rear end of the mounting base 531, and two vertical guide plates 533 arranged in the front-rear direction. The mounting base 531 is provided with a horizontal base through hole 5311 communicating with the central hole of the shaft cylinder 532. The rear ends of the two guide plates 533 are respectively fixedly connected to the left and right side ends of the mounting base 531. Upper guide grooves 5331 that are arcuately bent forward and upward and lower guide grooves 5332 that are arcuately bent forward and downward are respectively formed in the inner side walls of the two guide plates 533. The front end of the lower guide groove 5332 is located on the front side of the front end of the upper guide groove 5331. The shaft cylinder 532 is rotatably installed in the gripper mounting hole 511 through a bearing. The gripper 52 includes an upper gripper finger 521 that is arcuately bent forward and upward, two upper connecting rods 522, a lower gripper finger 523 that is arcuately bent forward and downward, two lower connecting rods 524, a connecting rod connecting block 525, and a gripper driving shaft 526. The front ends of the two upper connecting rods 522 are respectively rotatably connected to the left rear end and the right rear end of the upper gripper finger 521. The rear ends of the two upper connecting rods 522 are respectively rotatably connected to the upper left end and the upper right end of the connecting rod connecting block 525. Upper guide posts 5211 are respectively protruded from the left and right side ends of the front part of the upper gripper finger 521. The upper guide posts 5211 are slidably inserted into the corresponding upper guide grooves 5331. The front ends of the two lower connecting rods 524 are respectively rotatably connected to the left rear end and the right rear end of the lower gripper finger 523. The rear ends of the two lower connecting rods 524 are respectively rotatably connected to the lower left end and the lower right end of the connecting rod connecting block 525. Lower guide posts 5231 are respectively protruded from the left and right side ends of the front part of the lower gripper finger 523. The lower guide posts 5231 are slidably inserted into the corresponding lower guide grooves 5332. A V-shaped clamping notch 5232 is formed at the free end of the lower gripper finger 523. The front end of the lower gripper finger 523 can move to the front of the upper gripper finger 521. The front end of the gripper driving shaft 526 is horizontally connected to the rear wall of the connecting rod connecting block 525, and the rear end of the gripper driving shaft 526 sequentially passes through the base through hole 5311 and the central hole of the shaft cylinder 532 and is connected to the output shaft of the cylinder 54. The rotation driving assembly includes a rotation motor 551, a driving pulley 552, a driven pulley 553, and a transmission belt 554.A second motor mounting hole 513 is formed in the bottom of the mounting box 51. The driven pulley 553 is fixedly sleeved on the shaft cylinder 532 behind the jaw mounting hole 511. The rotating motor 551 is fixedly mounted on the bottom of the mounting box 51. The output shaft of the rotating motor 551 horizontally extends forward and is fixedly connected to the driving pulley 552. The transmission belt 554 passes through the second motor mounting hole 513 and is wound outside the driving pulley 552 and the driven pulley 553. In this embodiment, the number of the jaws 52 and the cylinders 54 is four each. The four jaws 52 are divided into two rows spaced up and down, with two jaws 52 in each row. The gear 45 is a helical gear, and correspondingly, the rack 40 is also a helical rack.
[0023] Preferably, the jaw rotation module 50 further includes an annular protective cylinder 56. The protective cylinder 56 is mounted on the front wall of the mounting box 51 and covers the jaws 52. In this embodiment, the number of the protective cylinders 56 is two, which respectively cover the two upper jaws 52 and the two lower jaws 52. A placement groove 13 is mounted on one side of the cross bar 10 between the two cross bar brackets 60. A drag chain 14 is placed in the placement groove 13. A wire threading pipe 24 is fixedly mounted on the sliding seat 20. A support arm 25 is mounted at the upper end of the wire threading pipe 23. The support arm 25 and the drag chain 14 are connected by bolts. Vertical limiting plates 70 are respectively mounted at the front and rear ends of the cross bar 10. The limiting plates 70 face the sliding seat 20. The guiding slider 23 and the side plate 22 are connected by bolts. The shaft cylinder 532 is rotatably mounted in the jaw mounting hole 511 through a bearing 58. Two stabilizing columns 57 are connected between the inner sides of the front ends of the two guiding plates 533. The two stabilizing columns 57 are respectively located above the front of the upper jaw finger 521 and below the front of the lower jaw finger 523.
[0024] The working principle of the four-wire drawing machine provided by the present utility model is as follows: As Figures 1-7As shown in the figure, when rolling the branch and vine materials, the servo motor 30 drives the gear 45 to rotate, so that the gear 45 meshes with the rack 40, and the sliding seat 20 stably and quickly moves forward through the guiding slider 23 and the guiding rod 12. The sliding seat 20 moves to the position of the branch raw material, and the air cylinder 54 pushes the jaw driving shaft 526 forward, so that the upper jaw finger 521 moves forward and downward along the upper guiding groove 5331, and at the same time, the lower jaw finger 523 moves forward and upward along the lower guiding groove 5332 to clamp the two branch and vine materials. Then, the servo motor 30 drives the gear 45 and the rack 40 to mesh and move, so that the sliding seat 20 moves backward uniformly along the guiding rod 12 through the guiding slider 23. At the same time, the rotating motor 551 drives the driven pulley 553 to rotate through the transmission belt 554, and then drives the shaft cylinder 532 to rotate, so as to drive the four jaws 52 to rotate synchronously, so that the two branch and vine materials on each jaw 52 are rolled into the leaf structure of the Christmas tree. After the rolling is completed, the air cylinder 54 pulls the jaw driving shaft 526 backward, so that the upper jaw finger 521 and the lower jaw finger 523 are opened from each other, and the finished product falls to the designated position. And so on in a cycle.
[0025] The four-line drawing machine of the present utility model drives the sliding seat and the installation box to move forward and backward synchronously through the servo motor, and the speed adjustment is more flexible and controllable. In addition, the transmission is carried out in cooperation with the gear, the rack, the guiding rod and the guiding slider, so that the transmission process is more stable, thereby better ensuring the rolling quality of the branch and vine materials.
[0026] It should be noted that, in addition to being a helical gear, the gear 45 can also be a spur gear. Correspondingly, in addition to being a helical rack, the rack 40 can also be a spur rack. The number of jaws of the jaw rotation module can be two or six or other appropriate numbers in addition to the four described above; correspondingly, the number of jaw driving members is also consistent with the number of jaws.
[0027] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present utility model.
Claims
1. Four-wire stretching machine, characterized in that: It includes a cross bar running front to back, a sliding seat, a servo motor, a planetary reducer, a rack, a gear, a jaw rotation module, and two cross bar brackets. The two cross bar brackets are respectively fixedly installed on the lower sides of the front and rear ends of the cross bar. The rack runs front to back and is installed on the top of the cross bar. The sliding seat includes a top plate and two side plates. The left and right ends of the top plate are respectively fixedly connected to the upper ends of the two side plates. A first motor mounting hole is provided on the top plate. The planetary reducer is fixedly installed on the top plate, and the output end of the planetary reducer passes downward through the first motor mounting hole and is connected to the gear. The output end of the servo motor extends downward and is connected to the input end of the planetary reducer. Guide rods running front to back are installed on both sides of the cross bar. Guide sliders running front to back are installed on the inner side walls of the two side plates. The cross bar is placed between the two side plates. The gear meshes with the rack. The guide sliders are slidably sleeved outside the guide rods. The jaw rotation module includes an installation box, a plurality of jaws, a plurality of jaw driving members, and a rotation driving assembly. The installation box is installed at the lower ends of the two side plates and below the cross bar. A plurality of jaw installation holes are provided on the front wall of the installation box. The jaws are rotatably installed in the jaw installation holes. The jaw driving members are installed on the installation box and are used to drive the jaws to open and close. The rotation driving assembly is installed on the installation box and is used to drive the jaws to rotate.
2. The four-wire bracing machine according to claim 1, wherein: The jaw rotation module further includes an annular protective cylinder. The protective cylinder is installed on the front wall of the installation box and covers the jaws.
3. The four-wire stay bar machine according to claim 1, characterized in that: The gear is a spur gear or a helical gear. Correspondingly, the rack is a straight rack or a helical rack.
4. The four-wire tensioning machine according to claim 1, characterized in that: It also includes two cross bar brackets. The two cross bar brackets are respectively fixedly installed on the lower sides of the front and rear ends of the cross bar.
5. The four-wire tensioning machine according to claim 4, characterized in that: A placement groove is installed on one side of the cross bar between the two cross bar brackets. A drag chain is placed in the placement groove. A wire conduit is installed on the sliding seat. A support arm is installed at the upper end of the wire conduit. The support arm is connected to the drag chain by bolts.
6. The four-wire drawing machine according to claim 1, characterized in that: Vertical limit plates are respectively installed at the front and rear ends of the cross bar. The limit plates face the sliding seat.