Round test paper positioning mechanism

Abstract

The utility model provides a round test paper positioning mechanism, which comprises a driving device, a tray assembly and a positioning assembly, the positioning assembly comprises a rotating device, the rotating device is provided with a plurality of fixing seats, limiting blocks are arranged among the fixing seats, the fixing seats are provided with clamping jaw assemblies, and the clamping jaw assemblies are connected with the tray assembly. The positioning mechanism has the advantages that the test paper can be effectively fixed, limited and protected, the working efficiency can be effectively improved, the performance is stable and the like, and the clamping jaw assembly is provided with a barb structure in the design process, so that the test paper can be effectively prevented from falling off from the positioning mechanism in the positioning and rotating processes; the cylinders in multiple directions are used for clamping and positioning the circular test paper, so that the function of automatically positioning the circle center can be achieved, and stable production of the test paper circle center positioning function is realized; in addition, the shape of the limiting middle part of the limiting block is the same as that of the test paper, so that the test paper can be prevented from being damaged or deformed in the clamping process of the pneumatic clamping jaw; therefore, the method has great economic value and practical value.

Description

TECHNICAL FIELD

[0001] The utility model relates to test paper production equipment research and development design technical field especially relates to a kind of circular test paper positioning mechanism. BACKGROUND

[0002] Test paper refers to the paper impregnated with chemical reagent, which can be used to test the presence of certain substances in liquid or gas by color change. It is commonly used to test the acidity or alkalinity of a substance or the approximate pH value of a solution to be tested. Test paper impregnated with potassium iodide is used to test sulfides. The paper is soft, has good absorption properties, does not swell when soaked in water, and does not break. It is made from cotton pulp or bleached kraft pulp as raw material, which is beaten to pulp and then made on a Fourdrinier paper machine under low pressure. The base paper is impregnated with different chemical reagents and dried to produce test paper for different purposes. As we all know, test paper is small in size and very thin, so it requires high production technology. The existing production equipment has serious technical deficiencies and needs further improvement. For example, during the production of test paper, the light and small size of test paper often causes it to fall off or be scratched, which causes inconvenience and loss to production. Therefore, further improvement is needed. SUMMARY

[0003] The utility model provides a kind of circular test paper positioning mechanism that can effectively fix and limit test paper and protect it, effectively improve work efficiency and have stable performance.

[0004] The utility model provides a kind of circular test paper positioning mechanism that can effectively fix and limit test paper and protect it, effectively improve work efficiency and have stable performance.

[0005] The utility model provides a kind of circular test paper positioning mechanism, including drive arrangement, tray assembly and positioning assembly, the positioning assembly includes rotating device, is installed with multiple fixed seat on the rotating device, is equipped with limit block between the fixed seat, is installed with clamping jaw assembly on the fixed seat.

[0006] Further, the drive arrangement includes a servo motor and a reducer for providing rotational power and increasing torque, respectively.

[0007] Further, the rotating device includes a rotary air cylinder.

[0008] Further, the rotating device is provided with a mounting position for mounting and fixing the fixed seat.

[0009] Further, the clamping jaw assembly is provided with a first limiting body and a second limiting body for limiting the position on the fixed seat.

[0010] Further, one end of the clamping jaw assembly is also provided with a barb structure for limiting the height of the test paper.

[0011] Further, the limiting block comprises a limiting middle part for placing the test paper and limiting feet arranged at the periphery of the limiting middle part, and the clamping jaw assembly is placed between two adjacent limiting feet and limits and fixes the test paper together with the limiting feet.

[0012] Further, the number of the limiting feet is not less than 3.

[0013] Further, the height of the clamping jaw assembly is not less than the height of the limiting block, and through the limiting of the limiting block and the adjustment of the height of the clamping jaw assembly and the test paper, the completion degree of the test paper in the positioning process is realized, and the phenomenon of clamping injury or deformation does not occur.

[0014] Beneficial effects are that:

[0015] The circular test paper positioning mechanism has the advantages of effectively fixing, limiting and protecting the test paper, effectively improving the work efficiency and being stable in performance, and the like. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural diagram of the circular test paper positioning mechanism of the utility model;

[0017] Figure 2 is an exploded structural diagram of the positioning assembly of the circular test paper positioning mechanism of the utility model;

[0018] Figure 3 is another positioning assembly structural diagram of the circular test paper positioning mechanism of the utility model;

[0019] Figure 4 is a rotating device structural diagram of the circular test paper positioning mechanism of the utility model;

[0020] Figure 5 is a clamping jaw assembly structural diagram of the circular test paper positioning mechanism of the utility model;

[0021] Figure 6 is a limiting block structural diagram of the circular test paper positioning mechanism of the utility model. DETAILED DESCRIPTION

[0022] The embodiments of the utility model will be illustrated in detail below with reference to the drawings, which are only used for reference and illustration, and do not constitute the limitation of the utility model patent protection scope.

[0023] As Figures 1-4 The utility model provides a kind of circular test paper positioning mechanism, including driving device 1, tray assembly 2 and positioning assembly 3, the positioning assembly 3 includes rotating device 4, a plurality of fixed seat 5 are installed on the rotating device 4, limiting block 6 is equipped between the fixed seat 5, clamping jaw assembly 7 is installed on the fixed seat 5.

[0024] In the embodiment, the driving device 1 includes a servo motor 101 and a reducer 102, respectively for providing rotary power and improving torque.

[0025] In the embodiment, the rotating device 301 includes a rotary cylinder.

[0026] In the embodiment, the rotating device 301 is provided with a mounting position 8 for mounting and fixing the fixed seat 5.

[0027] As Figure 5 In the embodiment, the clamping jaw assembly 7 is provided with a first limiting body 701 and a second limiting body 702 for limiting the position on the fixed seat 5.

[0028] In the embodiment, one end of the clamping jaw assembly 7 is also provided with a barb structure 703 for limiting the height of the test paper.

[0029] As Figure 6 In the embodiment, the limiting block 6 includes a limiting middle part 601 for placing the test paper and a limiting foot 602 provided around the limiting middle part 601, the clamping jaw assembly 7 is placed between two adjacent limiting feet 602 and limits and fixes the test paper together with the limiting feet 602.

[0030] In the embodiment, the number of the limiting feet 602 is not less than 3.

[0031] In the embodiment, the height of the clamping jaw assembly 7 is not less than the height of the limiting block 6, and through the limiting of the limiting block 6 and the adjustment of the placement height of the clamping jaw assembly 7 and the test paper, the completion degree of the test paper 100 in the positioning process is realized, and the phenomenon of pinching or deformation does not occur.

[0032] The circular test paper positioning mechanism has the advantages of effectively fixing, limiting and protecting the test paper, effectively improving work efficiency and being stable in performance, and the like, the clamping jaw assembly 7 is designed with an inverted hook structure 703 in the design process, the test paper can be effectively prevented from falling off from the positioning mechanism in the positioning and rotating process, a plurality of orientation air cylinders are used to clamp and position the circular test paper, the function of automatically positioning the center of the circle is achieved, the function of positioning the center of the test paper is realized, and stable production is realized, in addition, the limiting middle part 601 of the limiting block 6 has the same shape as the test paper, the test paper can be prevented from being clamped and damaged or deformed in the clamping process of the pneumatic clamping jaw, therefore, the application has great economic value and practical value.

[0033] The above embodiment is a preferred embodiment of the utility model, but the embodiment of the utility model is not limited to the above embodiment, and any change, modification, replacement, combination, simplification, which does not deviate from the spirit and principle of the utility model, should be an equivalent replacement mode, and all are included in the protection scope of the utility model.

Claims

1. A circular test paper positioning mechanism, characterized in that: It includes a driving device, a tray assembly and a positioning assembly. The positioning assembly includes a rotating device. A plurality of fixing seats are installed on the rotating device. Limiting blocks are provided between the fixing seats. A clamping claw assembly is installed on the fixing seat.

2. A circular test paper positioning mechanism according to claim 1, characterized in that: The driving device includes a servo motor and a reducer, which are used to provide rotational power and increase torque respectively.

3. A circular test paper positioning mechanism according to claim 1, characterized in that: The rotating device includes a rotating cylinder.

4. A circular test paper positioning mechanism according to claim 1, characterized in that: The rotating device is provided with a mounting position for mounting and fixing the fixing seat.

5. The circular test paper positioning mechanism according to claim 1, characterized in that: The clamping jaw assembly is provided with a first limiting body and a second limiting body for limiting the position on the fixing seat.

6. A circular test paper positioning mechanism according to claim 1 or 5, characterized in that: One end of the clamping jaw assembly is also provided with a barb structure for limiting the height of the test paper.

7. A circular test paper positioning mechanism according to claim 1 or 5, characterized in that: The limiting block includes a limiting middle portion for placing the test paper and limiting feet arranged around the limiting middle portion. The clamping claw assembly is placed between two adjacent limiting feet and limits and fixes the test paper together with the limiting feet.

8. The circular test paper positioning mechanism according to claim 7, characterized in that: The number of the limiting feet is no less than 3.

9. The circular test paper positioning mechanism according to claim 1, characterized in that: The height of the clamping jaw assembly is not lower than the height of the limiting block.

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