Device for measuring roll gap

By designing a roll gap measuring device that includes a crossbeam, a support mechanism, and an adjustment assembly, the problems of high cost and poor accuracy in the prior art are solved, and low-cost, high-precision roll gap measurement is achieved.

CN223564931UActive Publication Date: 2025-11-18SHENZHEN TAOTAO TECH CO LTD
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Patent Information

Application Number
CN202423180390.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-11-18
Estimated Expiration
2034-12-20

AI Technical Summary

Technical Problem

In the existing technology, roll gap measuring devices are costly and have poor accuracy, making it difficult to accurately measure tiny roll gap dimensions and resulting in low efficiency.

Method used

A device for measuring roll gap is provided, comprising a crossbeam, a support mechanism, a measuring plate, and an adjustment assembly. The support mechanism is slidably connected to the crossbeam, and the support passes through the through hole of the measuring plate. The measuring plate is clamped by the tension adjustment component of the adjustment assembly to achieve accurate measurement of roll gap.

Benefits of technology

It reduces measurement costs while improving measurement accuracy and efficiency, enabling accurate measurement of minute roll gap dimensions.

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Abstract

The utility model discloses a device for measuring a roll gap, which belongs to the technical field of roll gap measurement, and comprises a cross beam with a through groove, a supporting mechanism in sliding connection with the through groove, a measuring sheet with a through hole, a supporting piece connected with the supporting mechanism and an adjusting assembly, and the supporting mechanism moves along the length extension direction of the through groove. The supporting piece penetrates through the through hole, the measuring piece moves in the length extending direction of the supporting piece, the adjusting assembly comprises a first tightness adjusting piece and a second tightness adjusting piece matched with the first tightness adjusting piece, the first tightness adjusting piece and the second tightness adjusting piece are connected with the supporting piece, and the first tightness adjusting piece and the second tightness adjusting piece are connected with the measuring piece. The measuring piece is located between the first tightness adjusting piece and the second tightness adjusting piece, and the first tightness adjusting piece and the second tightness adjusting piece are used for clamping the measuring piece. According to the utility model, the technical effects of reducing the cost and improving the measurement precision are achieved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of roll gap measurement, and particularly relates to a device for measuring roll gap. BACKGROUND

[0002] In the production process of electronic paste, three-roll grinding machine is used to apply shearing force and friction force to the material through the relative movement between the three rollers, so as to effectively disperse the particles in the electronic paste. During the use of the three-roll grinding machine, the gap between the rollers needs to be accurately adjusted, and the adjustment of the roll gap of the three-roll grinding machine will directly affect the dispersion effect of the paste. In the prior art, a non-contact detection means such as a laser range finder is usually used to measure the roll gap, or an industrial camera is used in combination with image processing software to perform visual detection, so as to determine the relative position between the roll surfaces and measure the roll gap, or an operator manually measures the roll gap by using a ruler or a caliper. However, the size of the roll gap is small, and it is difficult to measure by using a ruler or a caliper, so it is difficult to accurately measure the small roll gap size, and the efficiency is low. When the laser range finder or the industrial camera is used for measurement, the cost of measurement is high.

[0003] Therefore, it is necessary to provide a new technical solution to solve the above technical problems. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problems of high cost and poor measurement accuracy.

[0005] To solve the above technical problems, the utility model provides a device for measuring roll gap, which comprises a cross beam with a through slot, a supporting mechanism in sliding connection with the through slot, a measuring sheet with a through hole, a supporting piece connected with the supporting mechanism, and an adjusting assembly. The supporting mechanism moves along the length extension direction of the through slot, the supporting piece penetrates through the through hole, the measuring sheet moves along the length extension direction of the supporting piece, the adjusting assembly comprises a first tension adjusting piece and a second tension adjusting piece matched with the first tension adjusting piece, the first tension adjusting piece and the second tension adjusting piece are connected with the supporting piece respectively, the measuring sheet is located between the first tension adjusting piece and the second tension adjusting piece, and the first tension adjusting piece and the second tension adjusting piece are used for clamping the measuring sheet.

[0006] Optionally, the device further comprises two limiting racks arranged on the two sides of the supporting mechanism respectively, the limiting racks are in sliding connection with the through slot, and the limiting racks move along the length extension direction of the through slot.

[0007] Optionally, the limiting frame comprises a limiting block with a limiting slot, a first sliding block and a limiting rod, the first sliding block is in sliding connection with the through slot, one end of the limiting rod penetrates through the through slot and is connected with the first sliding block, and the other end of the limiting rod is connected with the limiting block.

[0008] Optionally, the inner walls of the two limiting slots are arc surfaces, and the center lines of the inner walls of the two limiting slots are parallel.

[0009] Optionally, the supporting mechanism comprises a second sliding block, a stand penetrating through the through slot and connected with the second sliding block, and a mounting seat connected with the stand, the second sliding block is in sliding connection with the through slot, and the two ends of the support are respectively connected with the mounting seat.

[0010] Optionally, the mounting seat comprises a support plate connected with the stand and two limiting plates respectively connected with the support plate, the two limiting plates are arranged in one-to-one correspondence with the two ends of the support, and the two ends of the support are respectively connected with the two limiting plates.

[0011] Optionally, the support is provided with external threads, and the first and second tightness adjusting members are respectively provided with internal threads matched with the external threads, and the first and second tightness adjusting members are respectively in threaded connection with the support.

[0012] Optionally, the measuring piece comprises a support end and a measuring end connected with the support end, the through hole is arranged on the support end, and the measuring end is tapered in a direction away from the support end.

[0013] Optionally, the number of the measuring pieces is multiple, the multiple measuring pieces are arranged in parallel and side by side, and the length extension direction of the support is parallel to the length extension direction of the through slot.

[0014] Optionally, the thickness of the measuring piece along the length extension direction of the support is 0.01mm to 0.03mm.

[0015] Beneficial effects:

[0016] The utility model provides a kind of device for measuring roll gap, through the through slot sliding connection of support mechanism and crossbeam, support mechanism moves along the length extension direction of through slot, support piece is arranged on support mechanism, support piece penetrates the through hole of measuring sheet, measuring sheet moves along the length extension direction of support piece, the first tightness adjusting part and second tightness adjusting part of adjusting assembly are connected with support piece respectively, measuring sheet is located between the first tightness adjusting part and second tightness adjusting part, and measuring sheet is clamped by the first tightness adjusting part and second tightness adjusting part.This is when needing to measure roll gap, push support mechanism to drive support piece and the movable measuring sheet of setting on support piece and move to the position of opposite roll gap, adjust the first tightness adjusting part and second tightness adjusting part on the both sides of measuring sheet to loosen measuring sheet, so that measuring sheet moves on support piece, corresponding number of measuring sheet is inserted into roll gap to fill roll gap, and the first tightness adjusting part and second tightness adjusting part on the both sides of measuring sheet are adjusted to clamp corresponding number of measuring sheet, realize to measure roll gap. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present utility model or prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings described in the following only some embodiments of the present utility model, and for those skilled in the art, other drawings can be obtained without creative labor on the premise of these drawings.

[0018] Figure 1 The structural schematic diagram of the device for measuring roll gap provided by the embodiments of the present utility model.

[0019] Figure 2 The structural schematic diagram of measuring sheet in the device for measuring roll gap provided by the embodiments of the present utility model.

[0020] The meanings of various reference numerals in the drawings are as follows: 1-crossbeam, 11-through slot, 2-support mechanism, 21-second sliding block, 22-stand, 23-mounting seat, 231-supporting plate, 232-limiting plate, 3-measuring sheet, 31-through hole, 32-supporting end, 33-measuring end, 4-supporting piece, 5-adjusting assembly, 51-first tightness adjusting part, 52-second tightness adjusting part, 6-limiting frame, 61-limiting block, 611-limiting slot, 62-first sliding block, 63-limiting rod. DETAILED DESCRIPTION

[0021] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are merely for the purpose of explanation of the present application, and are not to be understood as limiting the present application.

[0022] In order to better understand the scheme of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below by reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] In the embodiments of the present application, at least one means one or more, and multiple means two or more than two. In the description of the present application, the terms "first", "second", "third", and the like are only used for distinguishing the purposes of description, and cannot be understood as indicating or implying relative importance, nor indicating or implying order.

[0024] In the description of the present application, the reference "one embodiment" or "some embodiments" and the like means that the specific features, structures or characteristics described in connection with the embodiment are included in one or more embodiments of the present application. Therefore, in the present description, the terms "include", "contain", "have" and their variants mean "include but not limited to", unless otherwise specifically emphasized. It should be noted that in the embodiments of the present application, the "and / or" description of the associated objects represents that there can be three relationships, for example, A and / or B can represent the existence of A alone, the existence of A and B together, and the existence of B alone.

[0025] It should be noted that in the embodiments of the present application, when a component is referred to as "fixed to" another component, it can be directly on the other component or there can be a middle component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there can be a middle component. When a component is considered to be "set on" another component, it can be directly set on the other component or there can be a middle component. At the same time, "connection" in the embodiments of the present application can also be understood as electrical connection, and the connection between two electrical elements can be direct or indirect connection between the two electrical elements. For example, A and B are connected, which can be direct connection between A and B, or indirect connection between A and B through one or more other electrical elements. The terms "vertical", "horizontal", "left", "right" and similar expressions used in the embodiments of the present application are only for the purpose of illustration, and are not intended to limit the present application.

[0026] The device for measuring roll gap provided by the embodiment of the utility model, please refer to Figures 1 to 2 As shown in the figure, Figure 1 It is the structure schematic diagram of the device for measuring roll gap provided by the embodiment of the utility model, Figure 2 The device for measuring roll gap provided by the embodiment of the utility model includes crossbeam 1, support mechanism 2, measuring piece 3, support piece 4 and adjusting assembly 5, crossbeam 1 has through slot 11, support mechanism 2 is slidably connected with through slot 11, support mechanism 2 moves along the length extension direction of through slot 11, measuring piece 3 has through hole 31, support piece 4 is connected with support mechanism 2, support piece 4 penetrates through hole 31, measuring piece 3 moves along the length extension direction of support piece 4, adjusting assembly 5 includes first tightness adjusting part 51 and second tightness adjusting part 52, second tightness adjusting part 52 cooperates with first tightness adjusting part 51, first tightness adjusting part 51 and second tightness adjusting part 52 are connected with support piece 4 respectively, measuring piece 3 is located between first tightness adjusting part 51 and second tightness adjusting part 52, first tightness adjusting part 51 and second tightness adjusting part 52 are used for clamping measuring piece 3.

[0027] Wherein, crossbeam 1 provides support for support mechanism 2, the number of through slot 11 can be multiple, multiple through slots 11 are arranged on crossbeam 1 and are parallel to each other.Support mechanism 2 is slidably connected with through slot 11 arranged on crossbeam 1, so that support mechanism 2 can move along the length extension direction of through slot 11.The length of support piece 4 covers the range of the roll gap to be measured.

[0028] Wherein, measuring piece 3 can be made of stainless steel material, after support piece 4 penetrates through hole 31 located on measuring piece 3, measuring piece 3 can move on support piece 4 along the length extension direction of support piece 4.

[0029] Wherein, measuring piece 3 is located between first tightness adjusting part 51 and second tightness adjusting part 52, first tightness adjusting part 51 and second tightness adjusting part 52 can clamp measuring piece 3 from both sides of measuring piece 3, when first tightness adjusting part 51 and second tightness adjusting part 52 approach each other, measuring piece 3 can be clamped, at this time, measuring piece 3 is fixed on support piece 4, when first tightness adjusting part 51 and second tightness adjusting part 52 move away from each other, measuring piece 3 can be released, at this time, measuring piece 3 can move on support piece 4.

[0030] When measuring the roll gap, the operator first pushes the supporting mechanism 2 along the through slot 11 of the cross beam 1 to a position opposite the roll gap, and then adjusts the first and second tension adjusting members 51 and 52 to loosen the measuring sheet 3 so that the measuring sheet 3 can move freely along the support 4. Then a corresponding number of measuring sheets 3 are inserted into the roll gap, and after the measuring sheets 3 are fixed in position by the clamping action of the adjusting members, the width of the roll gap can be obtained by reading the number of measuring sheets 3 inserted into the roll gap.

[0031] In the embodiment, the supporting mechanism 2 is slidably connected to the through slot 11 of the cross beam 1, and moves along the length extension direction of the through slot 11. The support 4 is arranged on the supporting mechanism 2, and the support 4 penetrates the through hole 31 of the measuring sheet 3. The measuring sheet 3 moves along the length extension direction of the support 4. The first and second tension adjusting members 51 and 52 of the adjusting assembly 5 are respectively connected to the support 4, and the measuring sheet 3 is located between the first and second tension adjusting members 51 and 52, and is clamped by the first and second tension adjusting members 51 and 52. In this way, when it is necessary to measure the roll gap, the supporting mechanism 2 is pushed to move the support 4 and the movable measuring sheet 3 arranged on the support 4 to a position opposite the roll gap. The first and second tension adjusting members 51 and 52 located on both sides of the measuring sheet 3 are adjusted to loosen the measuring sheet 3, so that the measuring sheet 3 moves on the support 4. A corresponding number of measuring sheets 3 are inserted into the roll gap to fill the roll gap, and the first and second tension adjusting members 51 and 52 located on both sides of the measuring sheet 3 are adjusted to clamp the corresponding number of measuring sheets 3, so as to measure the roll gap. Thus, the technical effect of reducing cost and improving measurement accuracy is achieved.

[0032] As an implementation manner, please refer to Figure 1 The device for measuring the roll gap further comprises two limiting frames 6, which are arranged on both sides of the supporting mechanism 2 and can provide support for the cross beam 1. The limiting frame 6 is slidably connected to the through slot 11 and moves along the length extension direction of the through slot 11, so as to limit the deviation of the supporting mechanism 2 during movement, and enable the measuring sheet 3 to be accurately inserted into the roll gap.

[0033] In some embodiments, the limiting frame 6 comprises a limiting block 61, a first sliding block 62 and a limiting rod 63. The limiting block 61 has a limiting groove 611. The first sliding block 62 is in sliding connection with the through groove 11. One end of the limiting rod 63 penetrates through the through groove 11 and is connected with the first sliding block 62. The other end of the limiting rod 63 is connected with the limiting block 61. The one end and the other end of the limiting rod 63 are two opposite ends of the limiting rod 63, which can be integrally formed. The width of the first sliding block 62 is greater than the width of the through groove 11, and the width of the limiting rod 63 is less than the width of the through groove 11. The limiting rod 63 can slide in the through groove 11. After the one end of the limiting rod 63 penetrates through the through groove 11, the first sliding block 62 is connected. At this time, the through groove 11 is located between the other end of the limiting rod 63 and the first sliding block 62. Pushing the first sliding block 62 can drive the limiting rod 63 to move. The operator can slide the first sliding block 62 of the limiting frame 6 along the through groove 11. After adjusting the limiting rod 63 connected with the first sliding block 62 and the limiting block 61 connected with the limiting rod 63 to a suitable position, the cross beam 1 is supported and limited, the supporting mechanism 2 is moved to a position opposite to the roll gap, the measuring sheet 3 is inserted into the roll gap, and the measuring sheet 3 is clamped for measurement, which is beneficial to improve the measurement accuracy.

[0034] In some embodiments, the inner walls of the two limiting grooves 611 are arc surfaces, and the center lines of the inner walls of the two limiting grooves 611 are parallel to each other. The limiting groove 611 with an arc surface matches the shape of the roll, so that the two limiting grooves 611 are respectively matched with the roll. The cross beam 1 is horizontally erected on the roll, which is beneficial to improve the accuracy of the moving track of the supporting mechanism 2.

[0035] In some embodiments, the supporting mechanism 2 comprises a second sliding block 21, a stand column 22 and a mounting seat 23. The second sliding block 21 is in sliding connection with the through groove 11. The stand column 22 penetrates through the through groove 11, and the stand column 22 is connected with the second sliding block 21. The mounting seat 23 is connected with the stand column 22. The two ends of the supporting piece 4 are respectively connected with the mounting seat 23. Since the structure and principle of the second sliding block 21 are the same as those of the above-mentioned first sliding block 62, they will not be repeated here. The operator can push the second sliding block 21 of the supporting mechanism 2 to move to a position opposite to the roll gap, so that the mounting seat 23 also moves to a position opposite to the roll gap. The stand column 22 of the supporting mechanism 2 makes the mounting seat 23 more stable during movement and less likely to deform.

[0036] In some embodiments, a slide rail can be arranged on the cross beam 1 near one side of the roll gap, and the supporting mechanism 2 comprises a mounting seat 23 and a stand 22 in sliding connection with the slide rail, the mounting seat 23 is connected with the stand 22, and the two ends of the supporting piece 4 are connected with the mounting seat 23 respectively. For example, one end of the stand 22 near the cross beam 1 is provided with a sliding groove matched with the slide rail, and the sliding connection between the slide rail and the sliding groove enables the stand 22 to move along the length extension direction of the slide rail.

[0037] In some embodiments, the mounting seat 23 comprises a supporting plate 231 and two limiting plates 232, the supporting plate 231 is connected with the stand 22, the two limiting plates 232 are connected with the supporting plate 231 respectively, the two limiting plates 232 are arranged in one-to-one correspondence with the two ends of the supporting piece 4, and the two ends of the supporting piece 4 are connected with the two limiting plates 232 respectively, which can prevent the supporting piece 4 from deviating during the measurement, so that the measurement result is more reliable.

[0038] In some embodiments, an external thread is arranged on the supporting piece 4, and an internal thread is arranged on the first and second tension adjusting pieces 51 and 52 respectively, the internal thread is matched with the external thread, and the first and second tension adjusting pieces 51 and 52 are threadedly connected with the supporting piece 4 respectively, for example, the first and second tension adjusting pieces 51 and 52 are bolts. When the roll gap needs to be measured, the operator first pushes the supporting mechanism 2 to slide along the through groove 11 of the cross beam 1, so that the supporting piece 4 and the measuring pieces 3 thereon move to a position opposite to the roll gap. Since the external thread is arranged on the supporting piece 4, and the matching internal thread is arranged on the first and second tension adjusting pieces 51 and 52, the operator can easily loosen or clamp the measuring pieces 3 by rotating the first and second tension adjusting pieces 51 and 52, which can conveniently adjust the position of the measuring pieces 3 on the supporting piece 4, so as to insert a corresponding number of measuring pieces 3 into the roll gap for filling. After the measuring pieces 3 are inserted into the roll gap, the first and second tension adjusting pieces 51 and 52 are rotated again to clamp the measuring pieces 3, so as to realize accurate measurement of the roll gap, which is beneficial to ensuring the stability of the measuring pieces 3 during the measurement and improving the measurement accuracy.

[0039] In some embodiments, the first tension adjusting piece 51 can be fixedly installed on the supporting piece 4, and the second tension adjusting piece 52 is threadedly connected with the supporting piece 4, and the distance between the first and second tension adjusting pieces 51 and 52 can be adjusted by rotating the second tension adjusting piece 52. At this time, the measuring pieces 3 located between the first and second tension adjusting pieces 51 and 52 can be clamped or loosened by rotating the second tension adjusting piece 52.

[0040] In some embodiments, the first and second tightness adjusting members 51 and 52 can also be magnetic members, and the distance between the first and second tightness adjusting members 51 and 52 can be adjusted by magnetic adsorption of the first and second tightness adjusting members 51 and 52 to the support member 4. When the first and second tightness adjusting members 51 and 52 are magnetically adsorbed to the support member 4, the measuring sheet 3 between the first and second tightness adjusting members 51 and 52 can be clamped, and when the first or second tightness adjusting member 51 or 52 is moved away from the support member 4, the measuring sheet 3 between the first and second tightness adjusting members 51 and 52 can be released.

[0041] In some embodiments, the support mechanism 2 and the support member 4 can be integrally formed, and the support mechanism 2 includes two connecting ends connected to the two ends of the support member 4, respectively. The two connecting ends are movably arranged on the cross beam 1, and the two connecting ends can be located on the two sides of the through slot 11. The support member 4 penetrates the through hole 31 on the support end 32 of the measuring sheet 3, and the two connecting ends and the support member 4 connected by the two connecting ends are integrally formed as a support block. After the support end 32 of the measuring sheet 3 penetrates the through slot 11 on the cross beam 1, the support end 32 of the measuring sheet 3 is slidably connected to the support member 4 of the support block. The through slot 11 is located between the support block and the measuring end 33 of the measuring sheet 3, so that the support end 32 of the measuring sheet 3 can slide on the support member 4 along the length extension direction of the support member 4. It should be noted that the length extension direction of the support member 4 is perpendicular to the length extension direction of the through slot 11, that is, the two connecting ends and the support member 4 connected by the two connecting ends are integrally formed as a support block, which is placed in the front-back direction in the above description, and the length extension direction of the support member 4 is perpendicular to the length extension direction of the through slot 11. Figure 1

[0042] In some embodiments, the measuring sheet 3 includes a support end 32 and a measuring end 33. The measuring end 33 is connected to the support end 32, and the through hole 31 is arranged on the support end 32. The measuring end 33 is tapered in a direction away from the support end 32. When measuring the roll gap, the operator moves the support mechanism 2 to the appropriate position, and then releases the first and second tightness adjusting members 51 and 52, so that the measuring sheet 3 can slide on the support member 4. At this time, since the measuring end 33 is tapered, when the measuring sheet 3 is inserted into the roll gap, the measuring end 33 can more easily adapt to the shape of the roll gap, so that the measuring sheet 3 can be tightly filled in the roll gap, which is beneficial to improve the accuracy and reliability of the measurement.

[0043] ​In some embodiments, the number of the measuring pieces 3 is multiple, such as 16 to 50. The multiple measuring pieces 3 are arranged in parallel, and the length extension direction of the support 4 and the length extension direction of the through slot 11 are parallel to each other, so that the operator can more easily adjust the position and number of the measuring pieces 3 to adapt to different sizes of the roll gap, which not only improves the flexibility of the measurement, but also makes the measurement process more efficient and accurate.

[0044] In some embodiments, the thickness of the measuring piece 3 along the length extension direction of the support 4 is in the range of 0.01mm to 0.03mm, which can more easily insert the measuring piece 3 into the roll gap and tightly fill it in the roll gap, not only can improve the accuracy of the measurement, but also can reduce the damage to the roll gap during the measurement, so that the measurement result is more reliable and accurate.

[0045] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A device for measuring roll gap, characterized in that, The device includes a crossbeam with a through groove, a support mechanism slidably connected to the through groove, a measuring piece with a through hole, a support member connected to the support mechanism, and an adjustment assembly. The support mechanism moves along the length of the through groove, the support member passes through the through hole, and the measuring piece moves along the length of the support member. The adjustment assembly includes a first tension adjustment member and a second tension adjustment member that cooperates with the first tension adjustment member. The first tension adjustment member and the second tension adjustment member are respectively connected to the support member. The measuring piece is located between the first tension adjustment member and the second tension adjustment member. The first tension adjustment member and the second tension adjustment member are used to clamp the measuring piece.

2. The apparatus for measuring roll gap according to claim 1, characterized in that, The device also includes two limiting frames respectively arranged on both sides of the support mechanism. The limiting frames are slidably connected to the through groove and move along the length extension direction of the through groove.

3. The apparatus for measuring roll gap according to claim 2, characterized in that, The limiting frame includes a limiting block with a limiting groove, a first slider, and a limiting rod. The first slider is slidably connected to the through groove. One end of the limiting rod passes through the through groove and is connected to the first slider. The other end of the limiting rod is connected to the limiting block.

4. The apparatus for measuring roll gap according to claim 3, characterized in that, The inner walls of the two limiting grooves are arc-shaped surfaces, and the center lines of the inner walls of the two limiting grooves are parallel.

5. The apparatus for measuring roll gap according to claim 1, characterized in that, The support mechanism includes a second slider, a column passing through the through groove and connected to the second slider, and a mounting base connected to the column. The second slider is slidably connected to the through groove, and both ends of the support are respectively connected to the mounting base.

6. The apparatus for measuring roll gap according to claim 5, characterized in that, The mounting base includes a support plate connected to the column and two limiting plates connected to the support plate respectively. The two limiting plates are respectively provided with one-to-one correspondence with the two ends of the support member, and the two ends of the support member are respectively connected to the two limiting plates.

7. The apparatus for measuring roll gap according to claim 1, characterized in that, The support member is provided with an external thread, and the first tension adjusting member and the second tension adjusting member are respectively provided with internal threads that match the external thread. The first tension adjusting member and the second tension adjusting member are respectively threadedly connected to the support member.

8. The apparatus for measuring roll gap according to claim 1, characterized in that, The measuring piece includes a support end and a measuring end connected to the support end. The through hole is provided on the support end, and the measuring end is tapered in the direction away from the support end.

9. The apparatus for measuring roll gap according to claim 1, characterized in that, The number of measuring pieces is multiple, and the multiple measuring pieces are arranged in parallel side by side, and the length extension direction of the support is parallel to the length extension direction of the through groove.

10. The apparatus for measuring roll gap according to claim 1, characterized in that, The thickness of the measuring piece extending along the length of the support is 0.01 mm to 0.03 mm.