A bottom net inlay device assisting the tension control effect of a heavy hammer

Abstract

The present application relates to papermaking felt base web processing technical field, specifically to a kind of base web headrest device of auxiliary weight tension control effect, including headrest machine main body and fixedly arranged in the fixed rack of headrest machine main body front end, the inside of the fixed rack front end is respectively provided with thread separator and guide roller, the thread separator is above the guide roller, the inside of the fixed rack is provided with tension real-time detection and self-adapting adjustment mechanism;The tension real-time detection and self-adapting adjustment mechanism includes two swing arms, the inside of the fixed rack is fixedly connected with first shaft rod, two swing arms are respectively rotationally sleeved in the both ends of first shaft rod, and the bottom end of the swing arm is provided with tension weight hammer.The base web headrest device of auxiliary weight tension control effect is provided, and has the advantages that dynamic balance and quantitative control of weft yarn tension are realized by integrating tension real-time detection and self-adapting adjustment mechanism.

Description

Technical Field

[0001] This invention relates to the field of papermaking felt bottom wire processing technology, specifically a bottom wire insert device that assists in controlling the tension of the counterweight. Background Technology

[0002] The bottom mesh splicing is a key process in the production of bottom mesh products such as papermaking felts and industrial filter cloths. Its core task is to join the warp yarns at both ends of the strip bottom mesh one by one according to the weave pattern to form a continuous ring mesh. During the splicing process, the stability of the weft yarn tension directly determines the quality of the splice. Excessive tension can easily lead to warp yarn breakage or skewed splices, while insufficient tension will result in uneven weft yarn density and loose splices.

[0003] Existing bottom-net inserting machines typically use a weighted suspension method for weft tension control: different masses of weights are suspended at each weft point below the yarn separating plate, and the gravity of the weights provides constant tension to the weft yarn; however, existing weighted tension control methods have the following technical drawbacks:

[0004] Tension adjustment is a static open-loop control, lacking real-time detection and feedback: once the weight of the counterweight is selected, the tension it provides is a fixed value. However, during the bottom mesh insertion process, as the warp yarns are inserted one by one and the weft yarns are continuously consumed, the actual required tension changes dynamically. The fixed counterweight cannot sense this change, resulting in tension fluctuations during the splicing process not being corrected in time.

[0005] Tension adjustment relies on manual experience and lacks quantitative basis: When changing the type of bottom mesh in existing equipment, operators need to manually change the weights of different qualities based on experience. This is not only cumbersome, but also makes it impossible to accurately set the target tension value. The tension settings of different operators vary significantly, which directly affects the stability and consistency of the joint quality. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this invention provides a bottom mesh insert device that assists in controlling the tension of the counterweight. It has the advantage of achieving dynamic balance and quantitative control of weft yarn tension by integrating a real-time tension detection and adaptive adjustment mechanism.

[0008] (II) Technical Solution

[0009] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a bottom net insert device for assisting the tension control effect of the counterweight, comprising an insert machine body and a fixed frame fixedly disposed at the front end of the insert machine body, wherein a yarn separating plate and a guide roller are respectively disposed inside the front end of the fixed frame, the yarn separating plate is located above the guide roller, and a tension real-time detection and adaptive adjustment mechanism is disposed inside the fixed frame.

[0010] The tension real-time detection and adaptive adjustment mechanism includes two swing arms. A first shaft is fixedly connected inside the fixed frame. The two swing arms are respectively rotatably sleeved at both ends of the first shaft. A tension counterweight is provided at the bottom end of the swing arms. A second shaft is fixedly connected between the top ends of the two swing arms. Multiple first guide wheels are rotatably sleeved on the surface of the second shaft. A tension control component is provided on the front side of the bottom end of the swing arms. A tension indicator component is provided at the bottom end between the two swing arms.

[0011] By adopting the above technical solution, the combination of the swing arm and tension control component in the real-time tension detection and adaptive adjustment mechanism converts the change in weft tension into the angular displacement of the swing arm. This, in turn, generates an additional reaction force through the tension control component, forming a purely mechanical force feedback closed loop. When the weft tension increases, the tension control component is compressed to generate reverse resistance. When the tension decreases, the elastic element releases to compensate for insufficient tension. The entire adjustment process has a fast response speed and high reliability, effectively avoiding splice misalignment and uneven weft density caused by tension fluctuations. Furthermore, the tension indicator component at the bottom of the swing arm can indicate the current tension value in real time. At the same time, the linear displacement sensor converts the displacement signal of the swing arm into an electrical signal and outputs it to the controller, realizing the real-time acquisition and recording of tension data.

[0012] The present invention is further configured such that: a third shaft is fixedly connected to the top of the fixed frame, and a second guide wheel is rotatably sleeved on the surface of the third shaft, and the first guide wheel and the second guide wheel are used in cooperation.

[0013] By adopting the above technical solution, the weft yarn obtains a stable wrap angle on the first guide wheel through the cooperation of the second guide wheel and the first guide wheel, ensuring that the force of the weft yarn tension on the swing arm is stable and predictable, thereby improving the accuracy and reliability of tension detection.

[0014] The invention is further configured such that: the tension control assembly includes a roller follower disposed between the swing arm and the tension counterweight; the front side of the roller follower contacts a wedge block; sliders are fixedly connected to opposite sides of the two wedge blocks; the other side of the sliders slidably contacts a fixed seat; the rear end of the fixed seat is bolted to a fixed frame; an elastic element is disposed on the front side of the wedge block; an adjusting plate is disposed at the front end of the elastic element; an adjusting bolt is rotatably connected to the front side of the adjusting plate; the front end of the adjusting bolt extends to the outside of the fixed seat; and the adjusting bolt is threadedly connected to the fixed seat.

[0015] By adopting the above technical solution and setting a tension control component, when the weft tension increases, the top of the swing arm swings in the direction of yarn travel, while its bottom swings in the opposite direction, simultaneously driving the roller follower to move. At the same time, the roller follower rolls along the inclined surface of the wedge block, pushing the wedge block to slide along the fixed seat, compressing the elastic element. The elastic element generates an additional reaction force proportional to the compression amount, which reacts on the swing arm through the wedge block and the roller follower, achieving dynamic tension compensation. Through the rolling cooperation between the roller follower and the inclined surface of the wedge block, the angular displacement of the swing arm is efficiently converted into linear displacement with minimal friction loss. Furthermore, the additional reaction force generated by the elastic element is proportional to the swing amplitude of the swing arm, achieving linear tension compensation. In addition, the pre-compression amount of the elastic element can be changed by adjusting the bolt, thereby setting the initial damping force, enabling the mechanism to adapt to the tension requirements of different base mesh materials and specifications.

[0016] The present invention is further configured such that: the elastic element is a spring group consisting of three cylindrical helical compression springs arranged in parallel, one end of the spring group is connected to the wedge block, and the other end is connected to the spring seat on the adjustment plate.

[0017] By adopting the above technical solution, the elastic element is a spring group consisting of three cylindrical helical compression springs arranged in parallel. The three springs work in parallel to provide an additional reaction force proportional to the displacement of the wedge block, so that the additional reaction force and the displacement of the swing arm maintain an ideal linear relationship, thereby improving the accuracy and stability of tension compensation.

[0018] The present invention is further configured such that: two linear guide rails are provided on the inner side of the fixed base, and the slider is slidably sleeved on the surface of the linear guide rails.

[0019] By adopting the above technical solution, the linear guide rail and the slider work together to ensure the linearity and smoothness of the wedge block movement, eliminate the skewing and jamming during the sliding process, and improve the response speed and reliability of the tension control component.

[0020] The invention is further configured such that: the angle between the inclined surface of the wedge block and the horizontal plane is 15°-30°, the wedge block is mounted on the fixed base through a sliding pair consisting of a slider and a linear guide rail, and the movement direction of the wedge block is perpendicular to the swing plane of the swing arm.

[0021] By adopting the above technical solution, the inclination angle of the wedge block is set to achieve a reasonable amplification of the swing displacement into the compression displacement of the elastic element.

[0022] The invention is further configured such that: the tension indicating assembly includes a fixed rod fixedly connected between two swing arms; a connecting rod is rotatably sleeved on the surface of the fixed rod; a housing is fixedly connected to the inner side of the fixed frame; a rotating shaft is rotatably connected inside the housing; a gear is sleeved on the surface of the rotating shaft; a rack is slidably arranged at the top inside the housing; both ends of the rack extend to the outer side of the housing; the rack meshes with the gear; the bottom end of the connecting rod is rotatably connected to the rack; an indicating disk is bolted to the right side of the housing; the right side of the rotating shaft extends to the outer side of the indicating disk; and an indicating needle that cooperates with the indicating disk is provided at the right end of the rotating shaft.

[0023] By adopting the above technical solution, a tension indicator component is set up. When the swing arm swings, the fixed rod drives the connecting rod to move. The connecting rod drives the rack to slide back and forth. The rack drives the gear and the rotating shaft to rotate. The indicator needle at the right end of the rotating shaft deflects synchronously on the indicator dial, realizing real-time visual reading of the tension. The scale on the indicator dial allows the operator to intuitively judge whether the current tension is within the target range without relying on experience.

[0024] The present invention is further configured such that: a linear displacement sensor is bolted to the top of the housing, the front end of the linear displacement sensor is fixedly connected to the rack, and the linear displacement sensor converts the displacement signal into an electrical signal and outputs it to the controller of the head-setting machine body.

[0025] By adopting the above technical solution, the electrical signal output of tension data is realized through a linear displacement sensor, enabling the tension state to be remotely monitored, recorded, and analyzed.

[0026] The invention is further configured such that: the bottom end of the swing arm is provided with a U-shaped opening, and an adjustment frame is slidably arranged inside it; the tension weight is fixedly connected to the adjustment frame by a bolt structure; a precision adjustment screw is rotatably connected to the front side of the bottom end of the swing arm; an internal thread block is threaded onto the surface of the precision adjustment screw; and the rear side of the internal thread block is fixedly connected to the adjustment frame.

[0027] Using the above technical solution, when rotating the precision adjusting screw, the internal thread block moves along the screw axis, causing the adjusting frame and tension weight to slide along the U-shaped opening of the swing arm, changing the lever arm length of the tension weight relative to the fulcrum of the swing arm, thereby adjusting the tension value applied to the weft yarn. The operator can intuitively read the current tension setting value, making the tension setting quantifiable and reproducible, completely changing the traditional weight-type tension control that relies on manual experience to replace the weight.

[0028] The invention is further configured such that: each of the two swing arms has an indicator scale on one side opposite to the other, and each of the two adjustment frames has an indicator protrusion on one side opposite to the other, the indicator protrusion being used in conjunction with the indicator scale.

[0029] By adopting the above technical solution, the operator can intuitively read the current position of the counterweight and the corresponding tension setting value through the cooperation of the indicator protrusion and the indicator scale, without the need for external measuring tools, which further improves the convenience of operation and the repeatability of tension setting.

[0030] (III) Beneficial Effects

[0031] Compared with the prior art, the present invention provides a bottom mesh insert device for assisting in the control of the tension of the counterweight, which has the following beneficial effects:

[0032] This auxiliary counterweight tension control device, through real-time tension detection and the coordination of the swing arm and tension control component in the adaptive adjustment mechanism, converts changes in weft tension into angular displacement of the swing arm. This, in turn, generates additional reaction force through the tension control component, forming a purely mechanical force feedback closed loop. When the weft tension increases, the tension control component is compressed, generating reverse resistance; when the tension decreases, the elastic element releases to compensate for insufficient tension. The entire adjustment process is fast-responding and highly reliable, effectively avoiding splice misalignment and uneven weft density caused by tension fluctuations. The adjustment frame is driven along the swing arm by a precision adjusting screw. The U-shaped opening at the bottom of the boom slides, causing the tension weight to move along the length of the swing arm, changing the length of the weight arm, thereby achieving stepless and precise tension adjustment. In addition, with the indicator scale and indicator protrusion, the operator can intuitively read the current tension setting value, making the tension setting quantifiable and reproducible. This completely changes the traditional weight-based tension control method that relies on manual experience to change the weight. Furthermore, the tension indicator component at the bottom of the swing arm can indicate the current tension value in real time. At the same time, the linear displacement sensor converts the displacement signal of the swing arm into an electrical signal and outputs it to the controller, realizing the real-time acquisition and recording of tension data. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 This is a schematic diagram showing the connection between the fixed frame and the tension real-time detection and adaptive adjustment mechanism in this invention;

[0035] Figure 3 This is a schematic diagram of the tension real-time detection and adaptive adjustment mechanism in this invention;

[0036] Figure 4 This is a schematic diagram of the tension control component in this invention;

[0037] Figure 5 This is a schematic diagram of the tension indicator component in this invention;

[0038] Figure 6 This is a schematic diagram showing the connection between the tension weight and the swing arm in this invention;

[0039] Figure 7 For the present invention Figure 6 Enlarged diagram of point A in the middle.

[0040] In the diagram: 1. Main body of the yarn inserting machine; 2. Fixed frame; 3. Yarn separating plate; 4. Guide roller; 5. Real-time tension detection and adaptive adjustment mechanism; 51. Swing arm; 52. First shaft; 53. Tension counterweight; 54. Second shaft; 55. First guide wheel; 56. Tension control assembly; 561. Roller follower; 562. Wedge block; 563. Slider; 564. Fixed seat; 565. Elastic element; 566. Adjusting plate; 567. Adjusting bolt; 57. Tension indicator assembly; 571. Fixed rod; 572. Connecting rod; 573. Housing; 574. Rotating shaft; 575. Gear; 576. Rack; 577. Indicator disc; 578. Indicator needle; 6. Third shaft; 7. Second guide wheel; 8. Linear guide rail; 9. Linear displacement sensor; 10. Adjusting frame; 11. Precision adjusting screw; 12. Internal thread block. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Please see Figure 1-7 A bottom mesh insert device for assisting in the tension control effect of the counterweight includes an insert machine body 1 and a fixed frame 2 fixedly installed at the front end of the insert machine body 1. The front end of the fixed frame 2 is provided with a yarn separating plate 3 and a guide roller 4 respectively. The yarn separating plate 3 is located above the guide roller 4. The fixed frame 2 is provided with a tension real-time detection and adaptive adjustment mechanism 5.

[0043] The tension real-time detection and adaptive adjustment mechanism 5 includes two swing arms 51. A first shaft 52 is fixedly connected inside the fixed frame 2. The two swing arms 51 are respectively rotatably sleeved at both ends of the first shaft 52. A tension counterweight 53 is provided at the bottom end of the swing arms 51. A second shaft 54 ​​is fixedly connected between the top ends of the two swing arms 51. Multiple first guide wheels 55 are rotatably sleeved on the surface of the second shaft 54. A tension control component 56 is provided on the front side of the bottom end of the swing arms 51. A tension indicator component 57 is provided at the bottom end between the two swing arms 51. Through the cooperation of the swing arms 51 and the tension control component 56 in the tension real-time detection and adaptive adjustment mechanism 5, the weft yarn is tensioned. The change in force is converted into the angular displacement of the swing arm 51, which in turn generates an additional reaction force through the tension control component 56, forming a purely mechanical force feedback closed loop. When the weft tension increases, the tension control component 56 is compressed to generate reverse resistance. When the tension decreases, the elastic element 565 is released to compensate for insufficient tension. The entire adjustment process has a fast response speed and high reliability, effectively avoiding splice misalignment and uneven weft density caused by tension fluctuations. Furthermore, the tension indicator component 57 at the bottom of the swing arm 51 can indicate the current tension value in real time. At the same time, the linear displacement sensor 9 converts the displacement signal of the swing arm 51 into an electrical signal and outputs it to the controller, realizing the real-time acquisition and recording of tension data.

[0044] The top of the fixed frame 2 is fixedly connected to a third shaft 6, and a second guide wheel 7 is rotatably sleeved on the surface of the third shaft 6. The first guide wheel 55 works in conjunction with the second guide wheel 7. Through the cooperation of the second guide wheel 7 and the first guide wheel 55, the weft yarn obtains a stable wrap angle on the first guide wheel 55, ensuring that the force of the weft yarn tension on the swing arm 51 is stable and predictable, thereby improving the accuracy and reliability of tension detection.

[0045] The tension control component 56 includes a roller follower 561, which is positioned between the swing arm 51 and the tension counterweight 53. A wedge block 562 contacts the front side of the roller follower 561. A slider 563 is fixedly connected to opposite sides of each wedge block 562. A fixed seat 564 slides on the other side of the slider 563. The rear end of the fixed seat 564 is bolted to the fixed frame 2. An elastic element 565 is positioned on the front side of the wedge block 562. An adjusting plate 566 is positioned at the front end of the elastic element 565. An adjusting bolt 567 is rotatably connected to the front side of the adjusting plate 566. The front end of the adjusting bolt 567 extends to the outside of the fixed seat 564, and the adjusting bolt 567 is threadedly connected to the fixed seat 564. By using the tension control component 56, when the weft tension increases, the top of the swing arm 51 swings in the direction of yarn travel, while its bottom swings in the opposite direction. The swing arm 51 is oscillating and simultaneously driving the roller follower 561 to move. At the same time, the roller follower 561 rolls along the inclined surface of the wedge block 562, pushing the wedge block 562 to slide along the fixed seat 564, compressing the elastic element 565. The elastic element 565 generates an additional reaction force proportional to the compression amount. Through the reaction force of the wedge block 562 and the roller follower 561, the swing arm 51 is dynamically compensated for tension. Through the rolling cooperation between the roller follower 561 and the inclined surface of the wedge block 562, the angular displacement of the swing arm 51 is efficiently converted into linear displacement with minimal friction loss. Furthermore, the additional reaction force generated by the elastic element 565 is proportional to the swing amplitude of the swing arm 51, achieving linear tension compensation. In addition, the pre-compression amount of the elastic element 565 can be changed by adjusting the bolt 567, thereby setting the initial damping force, so that the mechanism can adapt to the tension requirements of different bottom mesh materials and specifications.

[0046] Among them, the elastic element 565 is a spring group consisting of three cylindrical helical compression springs arranged in parallel. One end of the spring group is connected to the wedge block 562, and the other end is connected to the spring seat on the adjusting plate 566. Through the elastic element 565 being a spring group consisting of three cylindrical helical compression springs arranged in parallel, the three springs work in parallel to provide an additional reaction force proportional to the displacement of the wedge block 562, so that the additional reaction force and the displacement of the swing arm 51 maintain an ideal linear relationship, thereby improving the accuracy and stability of tension compensation.

[0047] The fixed base 564 has two linear guide rails 8 on its inner side. The slider 563 is slidably sleeved on the surface of the linear guide rails 8. Through the cooperation between the linear guide rails 8 and the slider 563, the linearity and stability of the wedge block 562 movement are ensured, the skewness and jamming during the sliding process are eliminated, and the response speed and reliability of the tension control component 56 are improved.

[0048] The wedge block 562 has an angle of 15°-30° between its inclined surface and the horizontal plane. The wedge block 562 is mounted on the fixed base 564 through a sliding pair consisting of the slider 563 and the linear guide rail 8. The movement direction of the wedge block 562 is perpendicular to the swing plane of the swing arm 51. By setting the inclination angle of the inclined surface of the wedge block 562, the swing displacement is reasonably amplified into the compression displacement of the elastic element 565.

[0049] The tension indicator assembly 57 includes a fixed rod 571 fixedly connected between two swing arms 51. A connecting rod 572 is rotatably sleeved on the surface of the fixed rod 571. A housing 573 is fixedly connected to the inner side of the fixed frame 2. A rotating shaft 574 is rotatably connected inside the housing 573, and a gear 575 is sleeved on the surface of the rotating shaft 574. A rack 576 is slidably arranged at the top inside the housing 573, with both ends of the rack 576 extending to the outer side of the housing 573. The rack 576 meshes with the gear 575. The bottom end of the connecting rod 572 is rotatably connected to the rack 576. An indicator disc 577 is bolted to the right side of the housing 573. The rotating shaft 574... The right side extends to the outside of the indicator disk 577, and the right end of the rotating shaft 574 is provided with an indicator needle 578 that works with the indicator disk 577. By setting the tension indicator component 57, when the swing arm 51 swings, the fixed rod 571 drives the connecting rod 572 to move. The connecting rod 572 drives the rack 576 to slide back and forth. The rack 576 drives the gear 575 and the rotating shaft 574 to rotate. The indicator needle 578 at the right end of the rotating shaft 574 deflects synchronously on the indicator disk 577, realizing real-time visual reading of the tension. The scale on the indicator disk 577 allows the operator to intuitively judge whether the current tension is within the target range without relying on experience.

[0050] A linear displacement sensor 9 is bolted to the top of the housing 573. The front end of the linear displacement sensor 9 is fixedly connected to the rack 576. The linear displacement sensor 9 converts the displacement signal into an electrical signal and outputs it to the controller of the head inserting machine body 1. The linear displacement sensor 9 realizes the output of electrical signals of tension data, so that the tension state can be remotely monitored, recorded and analyzed.

[0051] The swing arm 51 has a U-shaped opening at its bottom, with an adjustment frame 10 sliding inside. The tension weight 53 is fixedly connected to the adjustment frame 10 by bolts. A precision adjustment screw 11 is rotatably connected to the front side of the bottom of the swing arm 51. An internal thread block 12 is threaded onto the surface of the precision adjustment screw 11. The rear side of the internal thread block 12 is fixedly connected to the adjustment frame 10. When the precision adjustment screw 11 is rotated, the internal thread block 12 moves along the screw axis, causing the adjustment frame 10 and the tension weight 53 to slide along the U-shaped opening of the swing arm 51. This changes the lever arm length of the tension weight 53 relative to the fulcrum of the swing arm 51, thereby adjusting the tension value applied to the weft yarn. The operator can intuitively read the current tension setting value, making the tension setting quantifiable and reproducible. This completely changes the traditional weight-type tension control method that relies on manual experience to replace the weight.

[0052] The two swing arms 51 are equipped with indicator scales on opposite sides, and the two adjustment frames 10 are equipped with indicator protrusions on opposite sides. The indicator protrusions work in conjunction with the indicator scales to allow operators to intuitively read the current position of the counterweight and the corresponding tension setting value without the need for external measuring tools, thus further improving the convenience of operation and the repeatability of tension setting.

[0053] The working principle of this embodiment is as follows: Before operation, the operator first sets the target tension value according to the material and wire diameter of the bottom mesh to be processed. By rotating the precision adjusting screw 11, the internal thread block 12 moves along the screw axis, causing the adjusting frame 10 and the tension weight 53 to slide along the U-shaped opening at the bottom of the swing arm 51, changing the lever arm length of the weight relative to the fulcrum of the swing arm 51. At the same time, the indicator protrusion on the adjusting frame 10 moves synchronously with the adjusting frame 10, indicating the corresponding tension setting value on the indicator scale of the swing arm 51, making the tension setting quantifiable and reproducible. Then, by rotating the adjusting bolt 567, the pre-compression amount of the elastic element 565 is changed, setting the tension value. Initial damping force; After the weft yarn is threaded, it is drawn out from the yarn separating plate 3, first wraps around the first guide wheel 55 at a 180° wrap angle, then wraps around the second guide wheel 7 at the top of the fixed frame 2, and then enters the subsequent inserting working area. When the weft yarn wraps around the first guide wheel 55, its pressure on the first guide wheel 55 is transmitted to the top of the swing arm 51, which together with the gravitational torque of the tension weight 53 maintains balance. When the weft yarn tension increases during the inserting process, the top of the swing arm 51 swings in the direction of the weft yarn's movement, and its bottom swings in the opposite direction. The roller follower 561 fixed at the bottom of the swing arm 51 moves backward and rolls along the inclined surface of the wedge block 562, pushing the wedge block 56. 2. The slider 563 slides backward along the linear guide rail 8, compressing the elastic element 565. The spring assembly generates an additional reaction force proportional to the compression amount. This reaction force, through the wedge block 562 and the roller follower 561, acts on the swing arm 51, generating a resistance torque opposite to the direction of the weft tension. This offsets part of the tension increase, making the force on the weft yarn more stable. When the weft tension decreases, the above process reverses. The swing arm 51 swings in the opposite direction under the gravitational torque of the tension weight 53. The roller follower 561 resets, the thrust on the wedge block 562 decreases, and the spring assembly releases the stored potential energy to push the wedge block 562 back to its original position. The additional reaction force decreases, and the gravity of the tension weight 53... It acts more on the weft yarn to compensate for the reduced tension. During the tension change process, the swing arm 51 swings and drives the rack 576 to slide back and forth through the fixed rod 571 and the connecting rod 572. The rack 576 drives the gear 575 and the rotating shaft 574 to rotate. The indicator needle 578 at the end of the rotating shaft 574 deflects synchronously on the indicator disk 577 to indicate the current tension value in real time. At the same time, the linear displacement sensor 9 converts the displacement signal of the rack 576 into an electrical signal and outputs it to the controller of the head-setting machine body 1 to realize the real-time acquisition and recording of tension data. The operator can view the real-time tension curve on the controller to ensure that the tension is always within the set range during the head-setting process.

[0054] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. Those skilled in the art can make modifications to this embodiment without contributing any inventive step after reading this specification. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bottom mesh insert device for assisting in the tension control effect of a counterweight, comprising an insert machine body (1) and a fixed frame (2) fixedly disposed at the front end of the insert machine body (1), characterized in that: The front end of the fixed frame (2) is provided with a yarn separating plate (3) and a guide roller (4). The yarn separating plate (3) is located above the guide roller (4). The fixed frame (2) is provided with a tension real-time detection and adaptive adjustment mechanism (5). The tension real-time detection and adaptive adjustment mechanism (5) includes two swing arms (51). A first shaft (52) is fixedly connected inside the fixed frame (2). The two swing arms (51) are respectively rotatably sleeved at both ends of the first shaft (52). A tension weight (53) is provided at the bottom end of the swing arm (51). A second shaft (54) is fixedly connected between the top ends of the two swing arms (51). A plurality of first guide wheels (55) are rotatably sleeved on the surface of the second shaft (54). A tension control component (56) is provided on the front side of the bottom end of the swing arm (51). A tension indicator component (57) is provided at the bottom end between the two swing arms (51).

2. The bottom mesh insert device for assisting in controlling the tension of a counterweight according to claim 1, characterized in that: The top of the fixed frame (2) is fixedly connected to a third shaft (6), and a second guide wheel (7) is rotatably sleeved on the surface of the third shaft (6). The first guide wheel (55) and the second guide wheel (7) are used in conjunction.

3. The bottom mesh insert device for assisting in the tension control of the counterweight according to claim 1, characterized in that: The tension control assembly (56) includes a roller follower (561), which is disposed between the swing arm (51) and the tension counterweight (53). The front side of the roller follower (561) contacts a wedge block (562). A slider (563) is fixedly connected to the opposite side of the two wedge blocks (562). The other side of the slider (563) slides in contact with a fixed seat (564). The rear end of the fixed seat (564) is bolted to the fixed frame (2). An elastic element (565) is disposed on the front side of the wedge block (562). An adjusting plate (566) is disposed at the front end of the elastic element (565). An adjusting bolt (567) is rotatably connected to the front side of the adjusting plate (566). The front end of the adjusting bolt (567) extends to the outside of the fixed seat (564), and the adjusting bolt (567) is threadedly connected to the fixed seat (564).

4. The bottom mesh insert device for assisting in the tension control of the counterweight according to claim 3, characterized in that: The elastic element (565) is a spring group consisting of three cylindrical helical compression springs arranged in parallel. One end of the spring group is connected to the wedge block (562), and the other end is connected to the spring seat on the adjusting plate (566).

5. The bottom mesh insert device for assisting in the tension control of the counterweight according to claim 3, characterized in that: The inner side of the fixed base (564) is provided with two linear guide rails (8), and the slider (563) is slidably sleeved on the surface of the linear guide rails (8).

6. The bottom mesh insert device for assisting in the tension control of the counterweight according to claim 5, characterized in that: The angle between the inclined surface of the wedge block (562) and the horizontal plane is 15°-30°. The wedge block (562) is mounted on the fixed seat (564) through a sliding pair consisting of a slider (563) and a linear guide rail (8). The movement direction of the wedge block (562) is perpendicular to the swing plane of the swing arm (51).

7. The bottom mesh insert device for assisting in the tension control of a counterweight according to claim 1, characterized in that: The tension indicator assembly (57) includes a fixed rod (571) fixedly connected between two swing arms (51), a connecting rod (572) rotatably sleeved on the surface of the fixed rod (571), a housing (573) fixedly connected to the inner side of the fixed frame (2), a rotating shaft (574) rotatably connected inside the housing (573), and a gear (575) sleeved on the surface of the rotating shaft (574), and a rack (576) slidably disposed at the top inside the housing (573). Both ends of the rack (576) extend to the outside of the housing (573). The rack (576) meshes with the gear (575). The bottom end of the connecting rod (572) is rotatably connected to the rack (576). An indicator disk (577) is bolted to the right side of the housing (573). The right side of the rotating shaft (574) extends to the outside of the indicator disk (577), and the right end of the rotating shaft (574) is provided with an indicator needle (578) that works with the indicator disk (577).

8. The bottom mesh insert device for assisting in the tension control of the counterweight according to claim 7, characterized in that: A linear displacement sensor (9) is bolted to the top of the housing (573). The front end of the linear displacement sensor (9) is fixedly connected to the rack (576). The linear displacement sensor (9) converts the displacement signal into an electrical signal and outputs it to the controller of the head-setting machine body (1).

9. The bottom mesh insert device for assisting in the tension control of a counterweight according to claim 1, characterized in that: The bottom end of the swing arm (51) is set with a U-shaped opening, and an adjustment frame (10) is slidably set inside it. The tension weight (53) is fixedly connected to the adjustment frame (10) by a bolt structure. A precision adjustment screw (11) is rotatably connected to the front side of the bottom end of the swing arm (51). An internal thread block (12) is threaded onto the surface of the precision adjustment screw (11). The rear side of the internal thread block (12) is fixedly connected to the adjustment frame (10).

10. The bottom mesh insert device for assisting in the tension control of a counterweight according to claim 9, characterized in that: The two swing arms (51) are provided with indicator scales on opposite sides, and the two adjustment frames (10) are provided with indicator protrusions on opposite sides. The indicator protrusions are used in conjunction with the indicator scales.

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