Tool for detecting cumulative tolerances of strip hole pitches of test strip strips

Abstract

The utility model provides a tool for detecting the cumulative tolerance of the strip hole pitch of a test strip, which comprises a main body plate used for placing the test strip on one surface of the main body plate, a plurality of strip holes arranged at equal intervals in the lengthwise direction of the test strip, and fixing holes for needle with holes in the surface of the main body plate, the perforated needle fixing hole is used for accommodating a perforated needle and enabling one end of the perforated needle to protrude out of the surface so as to penetrate through and fix a belt hole in one end of a test paper belt, and a strip-shaped positioning groove is formed in the surface, is far away from the perforated needle fixing hole and is perpendicular to the lengthwise direction of the test paper belt placed on the surface; the distance between the center line of the positioning groove and the center of the fixing hole of the needle with the hole is integral multiple of the distance between the strip holes. By adopting the tool for detecting the cumulative tolerance of the strip hole pitch of the test paper strip, the cumulative tolerance of the strip hole pitch can be quickly and efficiently detected, and the use of an expensive optical projection measuring instrument can be avoided.

Description

Technical Field

[0001] The utility model relates to the field of industrial measurement, in particular to a tool for detecting the cumulative tolerance of the hole spacing of a test paper tape. Background Art

[0002] Test strips are cut from test strips. In the production process of some test strips, a 2mm diameter hole is formed on each test strip. Usually, the length of the test strip is 330mm, and the spacing between the holes on the test strip is 6mm. Therefore, each test strip can be cut into 53 test strips according to the 6mm cutting spacing, and the formed test strip is a 6mm wide strip test paper. In order to ensure that the width of each test strip meets the tolerance requirement of 6±0.2mm and the hole in the cut test strip is centered, the spacing and cumulative tolerance of each hole on the test strip need to be measured before cutting the test strip.

[0003] In the prior art, an optical projection measuring instrument is usually used to detect the hole spacing of a test paper tape. However, the optical projection measuring instrument is expensive and has a limited detection range, making it difficult to detect the cumulative tolerance from the first hole to the 53rd hole. Utility Model Content

[0004] In order to effectively solve the related technical problems, the utility model provides a tool for detecting the cumulative tolerance of the hole spacing of a test strip, characterized in that the tool may include: a main body plate, which is used to place the test strip on one surface thereof, and a plurality of equally spaced holes are arranged in the longitudinal direction of the test strip, wherein a hole pin fixing hole is arranged on the surface of the main body plate, and the hole pin fixing hole is used to accommodate a hole pin and make one end of the hole pin protrude from the surface to pass through and fix the hole located at one end of the test strip, wherein a strip positioning groove is also arranged on the surface of the main body plate, and the positioning groove is arranged to be away from the hole pin fixing hole and perpendicular to the longitudinal direction of the test strip placed on the surface, so as to be used for position comparison with the hole located at the other end of the test strip, wherein the distance from the center line of the positioning groove to the center of the hole pin fixing hole is an integer multiple of the hole spacing.

[0005] At least one limiting pin accommodating hole may also be provided on the surface, and the at least one limiting pin accommodating hole is used to accommodate at least one limiting pin and make one end of the limiting pin protrude from the surface to limit a long edge of the test strip.

[0006] At least one surface protrusion protruding from the surface may also be provided on the surface, and the at least one surface protrusion is used to limit the other long edge of the test strip.

[0007] The perforated pin fixing hole and the at least one limiting pin accommodating hole may be through holes penetrating the main body plate.

[0008] The body plate may be a plate having a first rectangular shape, and the body plate may have four rounded corners.

[0009] The at least one surface protrusion may have a second rectangular shape in a plane parallel to the surface, and the second rectangular shape may have four rounded corners.

[0010] The position comparison may include: if the projection of the belt hole located at the other end of the test strip on the main plate completely falls into the concave part of the positioning groove, then it is determined that the cumulative tolerance of the belt hole spacing of the test strip is qualified; if the projection of the belt hole located at the other end of the test strip on the main plate does not completely fall into the concave part of the positioning groove, then it is determined that the cumulative tolerance of the belt hole spacing of the test strip is unqualified.

[0011] The diameter of the perforated needle fixing hole may be equal to the diameter of the belt hole.

[0012] By using the tool for detecting the cumulative tolerance of the hole spacing of the test paper strip according to the utility model, the cumulative tolerance of the hole spacing of the perforated strip can be checked quickly and efficiently. In addition, the use of expensive optical projection measuring instruments can be avoided and no additional training or professional qualifications are required for the operator.

[0013] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] By reading the detailed description below with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, wherein:

[0015] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0016] Figure 1 A dimensional diagram of a cut test strip according to one embodiment is shown.

[0017] Figure 2 A three-dimensional view of a tool for detecting the cumulative tolerance of the hole spacing of a test paper tape according to the present invention is shown.

[0018] Figure 3 A perspective view showing placement of a test strip on a tool for testing the cumulative tolerance of the test strip's hole spacing is shown.

[0019] Figure 4A A schematic diagram is shown showing that the cumulative tolerance of the test strip hole spacing is qualified by comparing the positions of the test strip holes and the positioning grooves.

[0020] Figure 4B and Figure 4C A schematic diagram showing that the cumulative tolerance of the test strip hole spacing is unqualified by comparing the positions of the test strip holes with the positioning grooves is shown.

[0021] Reference numerals

[0022] 100 Tools

[0023] 101 Positioning slot

[0024] 102 with hole for pin fixing

[0025] 103 Limit pin receiving hole

[0026] 104 Surface protrusion

[0027] 200 Test Strips

[0028] 201 with holes. DETAILED DESCRIPTION

[0029] The principle and spirit of the present invention will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are provided only to enable those skilled in the art to better understand and implement the present invention, and are not intended to limit the scope of the present invention in any way. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0030] In the present application, it should be understood that terms such as “including” or “having” are intended to indicate the presence of features, numbers, steps, behaviors, components, parts, or a combination thereof disclosed in the present specification, and do not exclude the possibility of the presence of one or more other features, numbers, steps, behaviors, components, parts, or a combination thereof.

[0031] It should also be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings.

[0033] Figure 1 A dimensional diagram of a cut test strip according to one embodiment is shown. Figure 1 The unit of each value is millimeter (mm).

[0034] As mentioned above, multiple test strips can be obtained by cutting the test strip. Before the cutting operation, it is necessary to punch holes on the test strip to form multiple holes. Due to the technical limitations of the punching process, a specific tolerance (for example, a tolerance of ±0.2 mm) is allowed between the distances between adjacent holes on the test strip. However, when the test strip is relatively long and it is necessary to punch holes on the test strip to form many holes, the cumulative tolerance of the distances between the holes will cause some of the cut test strips to not meet the design specifications (for example, the holes are not centered on the test strip).

[0035] Therefore, the utility model proposes a tool for detecting the cumulative tolerance of the hole spacing of a test strip so as to quickly and conveniently detect unqualified test strips.

[0036] Figure 2 A three-dimensional view of a tool for detecting the cumulative tolerance of the hole spacing of a test paper tape according to the present invention is shown.

[0037] The tool 100 for detecting the hole spacing of the test strip may include a main body plate. A hole 102 for fixing a pin with a hole and two holes 103 for receiving a stop pin may be provided on one surface of the main body plate. The hole 102 for fixing a pin with a hole may be used to receive a pin with a hole to fix the test strip 200 (see Figure 3 ). The two limiting pin accommodating holes 103 can be used to respectively accommodate two limiting pins to limit one edge of the test strip 200. A strip-shaped positioning groove 101 is also provided on the surface, and the positioning groove 101 can be provided to be parallel to the two shorter edges of the surface for comparison with the band hole at the other end of the test strip 200. In some embodiments, the band-perforated pin fixing hole 102 and the limiting pin accommodating hole 103 can be through holes penetrating the main body plate.

[0038] The reason why the utility model only adopts the structure in which the hole needle / limiting needle and the hole needle fixing hole / limiting needle receiving hole cooperate with each other, instead of adopting the needle-like structure directly protruding on the surface of the main body plate, is that the diameter of the required needle-like structure is very small (for example, the diameter of the required needle-like structure should be 2 mm to match the diameter of the hole (see Figure 1 )), which makes it difficult to mill such a slender needle-like structure on the main plate when manufacturing the tool 100.

[0039] Two surface protrusions 104 protruding from the surface may also be provided on the surface, and the surface protrusions 104 may be used to limit the other edge of the test strip 200. In some embodiments, the surface protrusions 104 may have a rectangular shape on a plane parallel to the surface, and the rectangular shape may have four rounded corners.

[0040] In some embodiments, the body plate may be a plate having a rectangular shape, and the body plate may have four rounded corners.

[0041] Figure 3 A perspective view showing placement of a test strip on a tool for testing the cumulative tolerance of the test strip's hole spacing is shown.

[0042] like Figure 3 As shown, the test strip 200 is placed on the tool 100. The hole 201 at one end of the test strip 200 is fixed to the hole pin fixing hole 102 by the hole pin. In some embodiments, the diameter of the hole pin fixing hole 102 can be equal to the diameter of the hole 201.

[0043] The operator can compare a certain hole 201 at the other end of the test strip 200 with the positioning groove 101 to determine whether the test strip 200 is qualified.

[0044] Figure 4A A schematic diagram is shown showing that the cumulative tolerance of the test strip hole spacing is qualified by comparing the positions of the test strip holes and the positioning grooves.

[0045] like Figure 4A As shown, when observing from above through the hole 201, only the concave portion of the positioning groove 101 is observed, and the surface portion of the main plate on both sides of the positioning groove 101 is not observed, which indicates that the cumulative tolerance of the hole spacing of the hole 201 of the test strip 200 does not exceed the upper or lower limit of the cumulative tolerance design specification, and therefore the size of the test strip 200 is qualified and the size of each test strip obtained after the test strip 200 is cut is also qualified.

[0046] The tool 100 needs to be designed to a specific size to meet the cumulative tolerance design specification of the hole spacing of the test strip 200. In one embodiment, when it is necessary to Figure 1 In the case of the test paper shown and the test paper strip 200 including 53 holes 201, the distance from the center line of the positioning groove 101 to the center of the hole pin fixing hole 102 is an integer multiple of the hole spacing. In a preferred embodiment, the distance from the center line of the positioning groove 101 to the center of the hole pin fixing hole 102 can be designed to be 288.00±0.2mm. The upper and lower limits of the cumulative tolerance design specification of the hole spacing of the holes can be calibrated using the two sides of the positioning groove 101 respectively.

[0047] Figure 4B and Figure 4C A schematic diagram showing that the cumulative tolerance of the test strip hole spacing is unqualified by comparing the positions of the test strip holes with the positioning grooves is shown.

[0048] Figure 4B It is shown that the positioning groove 101 and a portion of the surface of the main body plate to the right of the positioning groove 101 can be observed in the belt hole 201. Figure 4C It is shown that the positioning groove 101 and a part of the surface of the main body plate on the left side of the positioning groove 101 can be observed in the belt hole 201. Both of these situations indicate that the size of the test paper strip is unqualified.

[0049] By using the tool for detecting the cumulative tolerance of the hole spacing of the test paper strip according to the utility model, the cumulative tolerance of the hole spacing of the perforated strip can be checked quickly and efficiently. In addition, the use of expensive optical projection measuring instruments can be avoided and no additional training or professional qualifications are required for the operator.

[0050] Although the spirit and principle of the present invention have been described with reference to several specific embodiments, it should be understood that the present invention is not limited to the disclosed specific embodiments, and the division of various aspects does not mean that the features in these aspects cannot be combined to benefit, and such division is only for the convenience of expression. The present invention is intended to cover various modifications and equivalent arrangements included in the spirit and scope of the attached claims.

Claims

1. A tool for detecting the cumulative tolerance of the hole spacing of a test paper tape, characterized in that: The tools include: A main body plate, which is used to place the test strip on one surface thereof, and a plurality of equally spaced holes are provided in the longitudinal direction of the test strip. A pin fixing hole with a hole is provided on the surface of the main body plate, and the pin fixing hole with a hole is used to accommodate a pin with a hole and make one end of the pin protrude from the surface to pass through and fix the hole at one end of the test strip. A strip positioning groove is also provided on the surface of the main body plate, and the positioning groove is arranged to be away from the perforated needle fixing hole and perpendicular to the longitudinal direction of the test strip placed on the surface, so as to be used for position comparison with the belt hole located at the other end of the test strip, wherein the distance from the center line of the positioning groove to the center of the perforated needle fixing hole is an integer multiple of the belt hole spacing.

2. The tool according to claim 1, characterized in that At least one limiting pin accommodating hole is also provided on the surface, and the at least one limiting pin accommodating hole is used to accommodate at least one limiting pin and make one end of the limiting pin protrude from the surface to limit a long edge of the test strip.

3. The tool according to claim 2, characterized in that At least one surface protrusion protruding from the surface is also provided on the surface, and the at least one surface protrusion is used to limit the other long edge of the test strip.

4. The tool according to claim 2, characterized in that The perforated pin fixing hole and the at least one limiting pin accommodating hole are through holes penetrating the main body plate.

5. The tool according to claim 1, characterized in that The body plate is a plate having a first rectangular shape, and the body plate has four rounded corners.

6. The tool according to claim 3, characterized in that The at least one surface protrusion has a second rectangular shape in a plane parallel to the surface, and the second rectangular shape has four rounded corners.

7. The tool according to claim 1, characterized in that The position comparison includes: If the projection of the band hole at the other end of the test strip on the main plate completely falls into the concave portion of the positioning groove, it is determined that the cumulative tolerance of the band hole spacing of the test strip is qualified. If the projection of the tape hole at the other end of the test strip on the main plate does not completely fall into the concave portion of the positioning groove, it is determined that the cumulative tolerance of the tape hole spacing of the test strip is unqualified.

8. The tool according to claim 1, characterized in that The diameter of the pin fixing hole with holes is equal to the diameter of the belt hole.

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