Chain clip system capable of conveniently adjusting longitudinal shrinkage ratio

Abstract

The utility model discloses a chain clip system convenient for adjusting a longitudinal shrinkage ratio, a plurality of chain links are sequentially hinged on a plurality of articulated shafts in an end-to-end manner, and matching pieces and chain clip bodies are alternately arranged on the plurality of articulated shafts which are sequentially arranged; the walking assembly is matched with the main track to limit the chain clip body to move in the extending direction of the main track; the first adjusting track and the main track are arranged at an interval in the horizontal direction, and the distance between the two changes according to a preset rule; the adjusting assembly is connected with the first adjusting track so as to drive the first adjusting track to move towards or away from the main track. The matching pieces are located between the main track and the first adjusting track and abut against the first adjusting track, when the chain clip moves in the extending direction of the main track, the matching pieces move along with the chain clip body in the extending direction of the main track, and the first adjusting track forces the two adjacent matching pieces to oppositely swing around hinge shafts connected to the chain clip. And the distance between the two adjacent chain clip bodies is shortened. The longitudinal shrinkage of the film can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of film processing, and more specifically, to a chain clip system which is convenient to adjust the longitudinal shrinkage ratio. Background Art

[0002] The separator for lithium batteries has certain requirements for the longitudinal shrinkage of the film, and in some fields, films with extremely low longitudinal shrinkage values are required, such as high-quality optical films. To meet the low longitudinal shrinkage value and control the longitudinal thermal shrinkage rate, specific equipment is needed. When the film is stretched, after the transverse stretching in the transverse stretching machine, "heat setting treatment" is generally required, and the purpose is to eliminate the internal stress in the film and reduce the thermal shrinkage rate. The existing transverse stretching machine can only perform transverse shrinkage, and the distance between the chain clips cannot be changed, so longitudinal shrinkage cannot be performed, and the thermal shrinkage rate cannot be effectively controlled longitudinally. At the same time, when the film is subjected to "heat setting" treatment, the films on both sides are clamped by the chain clips and cannot shrink longitudinally, but the film in the middle part will have a certain longitudinal shrinkage, and the whole film will show an "arc shape", which is disadvantageous for high-quality films.

[0003] Therefore, how to provide a chain clip system that can realize the longitudinal shrinkage of the film during the "heat setting" treatment has become a technical problem urgently to be solved in this field. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a chain clip system that can realize the longitudinal shrinkage of the film during the "heat setting" treatment.

[0005] The utility model provides a chain clip system which is convenient to adjust the longitudinal shrinkage ratio, including

[0006] a chain clip assembly, a main track, a first adjustment track and an adjustment assembly;

[0007] The chain clip assembly includes a chain clip body, a traveling assembly and a chain link assembly;

[0008] The chain link assembly includes chain links, hinge shafts and fitting parts. Multiple chain links are sequentially hinged to a plurality of hinge shafts end to end, and the fitting parts and the chain clip body are alternately arranged on a plurality of sequentially arranged hinge shafts;

[0009] The traveling assembly cooperates with the main track to limit the movement of the chain clip body along the extension direction of the main track;

[0010] The first adjustment track is arranged at a horizontal interval with the main track, and the distance between the two changes according to a preset rule;

[0011] The adjustment assembly is connected with the first adjustment track to drive the first adjustment track to move towards or away from the main track;

[0012] The mating part is located between the main track and the first adjusting track and abuts against the first adjusting track. When the chain clip moves along the extension direction of the main track, the mating part moves along the extension direction of the main track with the chain clip body, and the first adjusting track forces two adjacent mating parts to swing towards each other around the hinge shaft connected to the chain clip, so as to reduce the distance between two adjacent chain clip bodies.

[0013] Optionally, the first adjusting track includes an upper adjusting track and a lower adjusting track which are spaced apart vertically;

[0014] The link assembly includes an upper link assembly and a lower link assembly which are spaced apart vertically;

[0015] The mating part on the upper link assembly cooperates with the upper adjusting track, and the mating part on the lower link assembly cooperates with the lower adjusting track.

[0016] Optionally, the chain clip system facilitating the adjustment of the longitudinal contraction ratio includes an upper adjusting track base and a main track base;

[0017] The adjusting assembly includes a first upper adjusting assembly. The first upper adjusting assembly includes a slider fixing bolt and a slider. A long through slot is formed in the slider;

[0018] The upper adjusting track is fixedly connected to the upper adjusting track base, and the main track is fixedly connected to the main track base;

[0019] One end of the slider is connected to the upper adjusting track base;

[0020] The slider fixing bolt passes through the long through slot and is connected to the main track base. The slider can drive the upper adjusting track base to slide towards or away from the main track base, and the slider fixing bolt can lock the slider on the main track base.

[0021] Optionally, the first upper adjusting assembly includes a first adjusting screw, a second adjusting screw and an adjusting seat;

[0022] The adjusting seat is fixedly connected to the main track base. The first adjusting screw and the second adjusting screw respectively pass through the adjusting seat and cooperate with the slider; wherein, the end of the first adjusting screw abuts against the end of the slider, and adjusting the first adjusting screw can push the slider to move away from the main track base; the second adjusting screw is screwed into a screw hole arranged on one side of the slider, and screwing the second adjusting screw can pull the slider to move towards the main track base.

[0023] Optionally, a first scale is arranged on the surface of the main track base. The scale is located on one side of the slider, and the first scale is used to measure the displacement of the slider.

[0024] Optionally, the adjusting assembly includes a second upper adjusting assembly. The first upper adjusting assembly and the second upper adjusting assembly are sequentially arranged in the extending direction of the main track. The second upper adjusting assembly is connected between the main track base and the upper adjusting track base, and the second upper adjusting assembly can drive the upper adjusting track base to move towards or away from the main track base.

[0025] A through hole is formed in the slider, and the through hole is located on one side of the length of the long through slot. The first upper adjusting assembly includes a first pin shaft, and the first pin shaft passes through the through hole and is connected to the upper adjusting track base.

[0026] When the second upper adjusting assembly drives the upper adjusting track base to move towards or away from the main track base, the slider swings relative to the upper adjusting track base around the first pin shaft.

[0027] Optionally, the second upper adjusting assembly includes a first adjusting screw and a first adjusting nut. One end of the first adjusting screw is fixedly connected to the upper adjusting track base through a second pin shaft. The first adjusting screw passes through a third pin shaft arranged on the main track base, and the first adjusting nut is screwed on the first adjusting screw and the first adjusting nut is located on the side of the third pin shaft facing away from the upper adjusting track base. Screwing the first adjusting nut can drive the first adjusting screw to move towards or away from the main track base.

[0028] Optionally, a second scale is provided on the first adjusting screw.

[0029] Optionally, the chain clip system facilitating the adjustment of the longitudinal contraction ratio includes a lower adjusting track base, and the lower adjusting track base is located directly below the upper adjusting track base. The lower adjusting track is fixedly connected to the lower adjusting track base.

[0030] The adjusting assembly includes a first lower adjusting assembly and a second lower adjusting assembly. The first lower adjusting assembly and the second lower adjusting assembly are sequentially connected between the lower adjusting track base and the main track base. Both the first lower adjusting assembly and the second lower adjusting assembly can drive the lower adjusting track base to slide towards or away from the main track base, and one end of the first lower adjusting assembly is hinged to the main track base.

[0031] Optionally, the chain clip system facilitating the adjustment of the longitudinal contraction ratio further includes a second adjusting track. The second adjusting track is arranged between the first adjusting track and the main track. A running channel is formed between the first adjusting track and the second adjusting track, and the fitting is located in the running channel. When the chain clip moves along the extending direction of the main track, the fitting moves along the extending direction of the main track along with the chain clip body, and the second adjusting track forces two adjacent fittings to swing around the hinge axis connected to the chain clip towards the direction from the second adjusting track to the first adjusting track, so as to widen the distance between two adjacent chain clip bodies.

[0032] According to the technical content disclosed by the present invention, the following beneficial effects are achieved:

[0033] The chain clip system provided by the present utility model, which is convenient for adjusting the longitudinal shrinkage ratio, has a fitting member located between the main track and the first adjustment track and abuts against the first adjustment track. When the chain clip moves along the extension direction of the main track, the fitting member moves along the extension direction of the main track with the chain clip body, and the first adjustment track forces two adjacent fitting members to swing towards each other around the hinge shaft connected to the chain clip, so as to shorten the distance between two adjacent chain clip bodies, thereby realizing the longitudinal shrinkage of the film during the "heat setting" process and preventing the film from presenting an "arc" as a whole. In addition, the adjustment assembly is connected to the first adjustment track to drive the first adjustment track to move towards or away from the main track; the change in the distance between the first adjustment track and the main track can adjust the swing amplitude of the fitting member, and further adjust the change in the distance between two adjacent chain clip bodies, so as to realize the adjustment of the distance between the first adjustment track and the main track according to different processing conditions.

[0034] Other features and advantages of the present utility model will become clear through the following detailed description of the exemplary embodiments of the present utility model with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings incorporated in and constituting a part of this specification illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model.

[0036] Figure 1 It is a schematic structural diagram of the chain clip system provided by the present utility model, which is convenient for adjusting the longitudinal shrinkage ratio.

[0037] Figure 2 It is a diagram showing the cooperation relationship between the chain clip of the present utility model and the main track and the first adjustment track.

[0038] Figure 3 It is a diagram showing the cooperation relationship between the upper adjustment track and the adjustment assembly of the present utility model.

[0039] Figure 4 It is a diagram showing the cooperation relationship between the lower adjustment track and the adjustment assembly of the present utility model.

[0040] Description of the reference numerals: 101, the main body of the chain clip; 102, the traveling assembly; 103, the chain link; 104, the hinge shaft; 105, the roller; 1061, the upper chain link assembly; 1062, the lower chain link assembly; 2, the main track; 3, the first adjustment track; 301, the upper adjustment track; 302, the lower adjustment track; 4, the second adjustment track; 501, the upper adjustment track base; 502, the lower adjustment track base; 6, the main track base; 601, the first scale; 701, the slider fixing bolt; 702, the slider; 703, the long through slot; 704, the first lower adjustment assembly; 705, the first adjustment screw; 706, the second adjustment screw; 707, the adjustment seat; 708, the first pin shaft; 709, the first adjustment screw rod; 710, the first adjustment nut; 711, the fifth pin shaft; 712, the second lower adjustment assembly; 713, the second pin shaft; 714, the third pin shaft; 715, the first base fixing bolt; 716, the second base fixing bolt; 717, the second adjustment nut; 718, the second adjustment screw rod; 719, the fourth pin shaft. Detailed implementation mode

[0041] Now, various exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present invention.

[0042] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way limits the present invention, its application or use.

[0043] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and devices should be regarded as part of the specification.

[0044] In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0045] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0046] See Figure 1 , the present invention discloses a chain clip system that is convenient for adjusting the longitudinal contraction ratio, including a chain clip assembly, a main track 2, a first adjustment track 3, a second adjustment track 4 and an adjustment assembly.

[0047] The chain clip assembly includes a chain clip body 101, a traveling assembly 102 and a chain link assembly; the chain link assembly includes chain links 103, hinge shafts 104 and fitting parts, and the fitting parts are rollers 105. Multiple chain links 103 are successively hinged to multiple hinge shafts 104 end to end. The rollers 105 and the chain clip body 101 are alternately arranged on multiple sequentially arranged hinge shafts 104, and the rollers 105 can rotate around the axis of the hinge shafts 104; the traveling assembly 102 cooperates with the main track 2 to restrict the movement of the chain clip body 101 along the extending direction of the main track 2; the first adjusting track 3 is arranged at a horizontal interval from the main track 2 and the distance between the two changes according to a preset rule; the adjusting assembly is connected to the first adjusting track 3 to drive the first adjusting track 3 to move towards or away from the main track 2; the rollers 105 are located between the main track 2 and the first adjusting track 3 and abut against the first adjusting track 3. When the chain clip moves along the extending direction of the main track 2, the rollers 105 move along the extending direction of the main track 2 with the chain clip body 101, and the first adjusting track 3 forces two adjacent rollers 105 to swing towards each other around the hinge shafts 104 connected to the chain clip, so as to reduce the distance between two adjacent chain clip bodies 101.

[0048] Further, a second adjusting track 4 is arranged between the first adjusting track 3 and the main track 2, and a traveling channel is formed between the first adjusting track 3 and the second adjusting track 4. The rollers 105 are located in the traveling channel; when the chain clip moves along the extending direction of the main track 2, the rollers 105 move along the extending direction of the main track 2 with the chain clip body 101, and the second adjusting track 4 forces two adjacent rollers 105 to swing from the second adjusting track 4 to the first adjusting track 3 around the hinge shafts 104 connected to the chain clip, so as to increase the distance between two adjacent chain clip bodies 101.

[0049] It should be noted that the chain clip body 101 of the horizontal pulling machine clamps the film and runs along the main track 2. In the direction of the diaphragm running on the diaphragm production line, we call it "longitudinal". As Figure 1 shown, when the chain clip moves along the main track, the rollers 105 are connected to the chain clip body 101 through the chain links 103. When the distances between the first adjusting track 3 and the second adjusting track 4 and the main track 2 gradually decrease (or increase), the rollers 105 are restricted by the first adjusting track 3 and the second adjusting track 4 and move closer to (or away from) the main track. At the same time, the longitudinal distance between the two rollers 105 decreases (or increases), driving the longitudinal distance between the two chain clip bodies 101 to decrease (or increase), so as to realize the longitudinal contraction (or stretching) of the film.

[0050] For the film with longitudinal contraction requirements, when the chain clip performs longitudinal contraction, the first adjusting track 3 is stressed, and only Figure 1The first adjustment track 3 on the middle and outer sides is sufficient. This solution is mainly aimed at adjusting the track that only performs longitudinal contraction. For the track that needs to be stretched or requires both stretching and contraction, it is only necessary to add the second adjustment track 4.

[0051] like Figure 2 , as shown in the figure, one side of the chain link 103 of the utility model is provided with two upper and lower concentric rollers, and two upper and lower adjustment rails, that is, the first adjustment rail 3 includes an upper adjustment rail 301 and a lower adjustment rail 302 arranged at intervals in the vertical direction; the force on the chain clip can be more balanced. The chain link assembly includes an upper chain link assembly 1061 and a lower chain link assembly 1062 arranged at intervals in the vertical direction; the roller 105 on the upper chain link assembly 1061 cooperates with the upper adjustment rail 301, and the roller 105 on the lower chain link assembly 1062 cooperates with the lower adjustment rail 302.

[0052] Combination Figure 3 The chain clip system for adjusting the longitudinal contraction ratio includes an upper adjustment rail base 501 and a main rail base 6; the adjustment component includes a first upper adjustment component, the first upper adjustment component includes a slider fixing bolt 701 and a slider 702, and a long through groove 703 is provided on the slider 702; the upper adjustment rail 301 is fixedly connected to the upper adjustment rail base 501, and the main rail 2 is fixedly connected to the main rail base 6; one end of the slider 702 is connected to the upper adjustment rail base 501; the slider fixing bolt 701 passes through the long through groove 703 and is connected to the main rail base 6, the slider 702 can drive the upper adjustment rail base 501 to slide toward or away from the main rail base 6, and the slider fixing bolt 701 can lock the slider 702 on the main rail base 6. The first upper adjustment assembly includes a first adjustment screw 705, a second adjustment screw 706 and an adjustment seat 707; the adjustment seat 707 is fixedly connected to the main track base 6, and the first adjustment screw 705 and the second adjustment screw 706 respectively penetrate the adjustment seat 707 and cooperate with the slider 702; wherein, the end of the first adjustment screw 705 abuts against the end of the slider 702, and adjusting the first adjustment screw 705 can push the slider 702 to move away from the main track base 6; the second adjustment screw 706 is screwed into a screw hole set on one side of the slider 702, and screwing the second adjustment screw 706 can pull the slider 702 to move toward the main track base 6. It can be seen that the utility model uses two adjustment screws, one for pushing forward and the other for pulling backward. The surface of the main track base 6 is provided with a first scale 601, which is located on one side of the slider 702, and the first scale 601 is used to measure the displacement of the slider 702. It is convenient to accurately control the adjustment amount. After the adjustment is in place, the position is locked by tightening the slider fixing bolt 701.

[0053] The adjusting assembly further includes a second upper adjusting assembly. The first upper adjusting assembly and the second upper adjusting assembly are sequentially arranged in the extending direction of the main track 2. The second upper adjusting assembly is connected between the main track base 6 and the upper adjusting track base 501. The second upper adjusting assembly can drive the upper adjusting track base 501 to move towards or away from the main track base 6. A through hole is formed in the slider 702, and the through hole is located on one side of the length of the long through slot 703. The first upper adjusting assembly includes a first pin shaft 708. The first pin shaft 708 passes through the through hole and is connected to the upper adjusting track base 501. When the second upper adjusting assembly drives the upper adjusting track base 501 to move towards or away from the main track base 6, the slider 702 swings relative to the upper adjusting track base 501 around the first pin shaft 708.

[0054] Further, the second upper adjusting assembly includes a first adjusting screw 709 and a first adjusting nut 710. One end of the first adjusting screw 709 is fixedly connected to the upper adjusting track base 501 through a second pin shaft 713. The first adjusting screw 709 passes through a third pin shaft 714 arranged on the main track base 6. The first adjusting nut 710 is screwed on the first adjusting screw 709 and the first adjusting nut 710 is located on the side of the third pin shaft 714 facing away from the upper adjusting track base 501. Screwing the first adjusting nut 710 can drive the first adjusting screw 709 to move towards or away from the main track base 6. A second scale is provided on the first adjusting screw 709.

[0055] The distance between the second pin shaft 713 and the third pin shaft 714 is adjusted by rotating the first adjusting nut 710. The left and right sides of the first upper adjusting assembly and the second upper adjusting assembly are adjusted separately to realize the change in the distance between the adjusting track and the main track. After the distance adjustment is completed, tighten the first base fixing bolt 715 to lock the positions of the upper adjusting track base 501 and the main track base 6.

[0056] Further, as Figure 4As shown in the figure, the chain gripper system that is convenient for adjusting the longitudinal contraction ratio includes a lower adjustment track base 502, which is located directly below the upper adjustment track base 501. The lower adjustment track 302 is fixedly connected to the lower adjustment track base 502. A long hole is provided on one side of the main track base 6 close to the lower adjustment track base 502, and a through hole is provided on the lower adjustment track base 502. The second base fixing bolt 716 sequentially passes through the through hole on the lower adjustment track base 502 and the long hole on the main track base 6. The second base fixing bolt 716 can drive the lower adjustment track base 502 to slide relative to the main track base 6 along the extension direction of the long hole. The adjustment assembly includes a first lower adjustment assembly 704 and a second lower adjustment assembly 712, which are sequentially connected between the lower adjustment track base 502 and the main track base 6. Both the first lower adjustment assembly 704 and the second lower adjustment assembly 712 can drive the lower adjustment track base 502 to slide towards or away from the main track base 6. One end of the first lower adjustment assembly 704 is hinged to the main track base 6. The fourth pin 719 is hinged to the lower adjustment track base 502 and is simultaneously placed in the long hole on one side of the main track base 6, so that it can only move horizontally. The moving distance between the fourth pin 719 and the fifth pin 711 is adjusted by the second adjusting screw 718 and the second adjusting nut 717.

[0057] In summary, the chain gripper system provided by the present utility model that is convenient for adjusting the longitudinal contraction ratio:

[0058] 1. The adjustment track is conveniently freely adjustable, and a scale is provided on the corresponding adjustment structure.

[0059] 2. The first pin 708 and the second pin 713 of the upper adjustment track 301 and the fourth pin 719 and the fifth pin 711 of the lower adjustment track 302 are on the same vertical line, which can ensure that after the pins move the same distance, the guide plates of the upper adjustment track 301 and the lower adjustment track 302 are still in a vertical plane, avoiding uneven stress on the upper and lower rollers 105 of the chain gripper.

[0060] 3. The rollers 105 of the chain gripper are realized by using two upper and lower bearings.

[0061] 4. The guide plates of the main track 2, the first adjustment track 3, and the second adjustment track 4 adopt a form of stacking four layers of steel strips. The steel strips are easy to bend, convenient for making plug-in structures, and can maintain the continuity of the track. This can ensure continuous adjustability of longitudinal stretching or contraction.

[0062] Although some specific embodiments of the present utility model have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and not for limiting the scope of the present utility model. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present utility model. The scope of the present utility model is defined by the appended claims.

Claims

1. A chain gripper system facilitating the adjustment of the longitudinal contraction ratio, characterized in that, Comprising: A chain clip assembly, a main track, a first adjustment track, and an adjustment assembly; The chain clip assembly includes a chain clip body, a traveling assembly, and a link assembly; The link assembly includes links, hinge shafts, and fitting members. Multiple pieces of the links are sequentially and end-to-end hinged on multiple of the hinge shafts, and the fitting members and the chain clip body are alternately arranged on multiple sequentially arranged hinge shafts; The traveling assembly cooperates with the main track to restrict the movement of the chain clip body along the extending direction of the main track; The first adjustment track is spaced from the main track in the horizontal direction and the distance therebetween changes according to a preset rule; The adjustment assembly is connected to the first adjustment track to drive the first adjustment track to move toward or away from the main track; The fitting member is located between the main track and the first adjustment track and abuts against the first adjustment track. When the chain clip moves along the extending direction of the main track, the fitting member moves along the extending direction of the main track with the chain clip body, and the first adjustment track forces two adjacent fitting members to swing toward each other around the hinge shafts connected to the chain clip, so as to reduce the distance between two adjacent chain clip bodies.

2. The chain clip system for facilitating the adjustment of the longitudinal contraction ratio according to claim 1, wherein: The first adjustment track includes an upper adjustment track and a lower adjustment track that are spaced from each other in the vertical direction; The link assembly includes an upper link assembly and a lower link assembly that are spaced from each other in the vertical direction; The fitting member on the upper link assembly cooperates with the upper adjustment track, and the fitting member on the lower link assembly cooperates with the lower adjustment track.

3. The chain clip system for facilitating the adjustment of the longitudinal contraction ratio according to claim 2, wherein: The chain clip system for facilitating the adjustment of the longitudinal contraction ratio includes an upper adjustment track base and a main track base; The adjustment assembly includes a first upper adjustment assembly. The first upper adjustment assembly includes a slider fixing bolt and a slider, and a long through slot is provided on the slider; The upper adjustment track is fixedly connected to the upper adjustment track base, and the main track is fixedly connected to the main track base; One end of the slider is connected to the upper adjustment track base; The slider fixing bolt passes through the long through slot and is connected to the main track base. The slider can drive the upper adjustment track base to slide toward or away from the main track base, and the slider fixing bolt can lock the slider on the main track base.

4. The chain clip system for facilitating the adjustment of the longitudinal contraction ratio according to claim 3, wherein: The first upper adjustment assembly includes a first adjustment screw, a second adjustment screw, and an adjustment seat; The adjusting base is fixedly connected to the main track base, and the first adjusting screw and the second adjusting screw respectively penetrate through the adjusting base and cooperate with the slider; wherein, the end of the first adjusting screw abuts against the end of the slider, and adjusting the first adjusting screw can push the slider to move away from the main track base; the second adjusting screw is screwed into a threaded hole provided on one side of the slider, and screwing the second adjusting screw can pull the slider to move closer to the main track base.

5. The chain clamp system for facilitating the adjustment of the longitudinal contraction ratio according to claim 4, wherein: A first scale is provided on the surface of the main track base, and the scale is located on one side of the slider, and the first scale is used to measure the displacement of the slider.

6. The chain clamp system for facilitating the adjustment of the longitudinal contraction ratio according to any one of claims 3 to 5, wherein: The adjusting assembly includes a second upper adjusting assembly, and the first upper adjusting assembly and the second upper adjusting assembly are sequentially arranged in the extending direction of the main track; the second upper adjusting assembly is connected between the main track base and the upper adjusting track base, and the second upper adjusting assembly can drive the upper adjusting track base to move towards or away from the main track base; A through hole is formed in the slider, and the through hole is located on the length side of the long through groove; the first upper adjusting assembly includes a first pin shaft, and the first pin shaft penetrates through the through hole and is connected to the upper adjusting track base; When the second upper adjusting assembly drives the upper adjusting track base to move towards or away from the main track base, the slider swings relative to the upper adjusting track base around the first pin shaft.

7. The chain clamp system for facilitating the adjustment of the longitudinal contraction ratio according to claim 6, wherein: The second upper adjusting assembly includes a first adjusting screw and a first adjusting nut. One end of the first adjusting screw is fixedly connected to the upper adjusting track base through a second pin shaft. The first adjusting screw penetrates through a third pin shaft provided on the main track base. The first adjusting nut is screwed on the first adjusting screw and the first adjusting nut is located on the side of the third pin shaft facing away from the upper adjusting track base; screwing the first adjusting nut can drive the first adjusting screw to move towards or away from the main track base.

8. The chain clamp system for facilitating the adjustment of the longitudinal contraction ratio according to claim 7, wherein: A second scale is provided on the first adjusting screw.

9. The chain clamp system for facilitating the adjustment of the longitudinal contraction ratio according to any one of claims 2 to 5, wherein: The chain clamp system for facilitating the adjustment of the longitudinal contraction ratio includes a lower adjusting track base, and the lower adjusting track base is located directly below the upper adjusting track base, and the lower adjusting track is fixedly connected to the lower adjusting track base; The adjusting assembly includes a first lower adjusting assembly and a second lower adjusting assembly. The first lower adjusting assembly and the second lower adjusting assembly are sequentially connected between the lower adjusting track base and the main track base. Both the first lower adjusting assembly and the second lower adjusting assembly can drive the lower adjusting track base to slide towards or away from the main track base, and one end of the first lower adjusting assembly is hinged to the main track base.

10. The chain gripper system for facilitating the adjustment of the longitudinal contraction ratio according to claim 9, wherein: The chain gripper system for facilitating the adjustment of the longitudinal contraction ratio further includes a second adjusting track. The second adjusting track is arranged between the first adjusting track and the main track. A running channel is formed between the first adjusting track and the second adjusting track, and the fitting is located in the running channel. When the chain gripper moves along the extending direction of the main track, the fitting moves along the extending direction of the main track together with the chain gripper body, and the second adjusting track forces two adjacent fittings to swing from the second adjusting track to the first adjusting track around the hinge axis connected to the chain gripper, so as to increase the distance between two adjacent chain gripper bodies.

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