Nozzle blowing waveform test device

Abstract

The present invention provides a base and a nozzle blowing waveform testing device. The base is used to test the blowing waveform of the nozzle opening of the nozzle integration. The nozzle integration is provided with a nozzle opening row, and the nozzle opening row has a plurality of nozzle openings arranged at equal intervals. The plurality of nozzle openings are the same in shape and size and aligned along the arrangement direction. The base includes a main body and two positioning claws. The main body is provided with a first through hole, and the first through hole penetrates the main body along the front-to-back direction of the main body. The first through hole is used to accommodate a sensor for detecting the blowing waveform that is positioned in the first through hole and aligned with a corresponding nozzle opening. The two positioning claws are symmetrically located on both sides of the first through hole in the left-right direction of the main body, and each positioning claw is used for interference fit with the nozzle opening adjacent to the nozzle opening aligned with the first through hole. The nozzle blowing waveform testing device includes the aforementioned base and the sensor. In this way, it can be ensured that the positions detected by the sensor of all nozzle openings are on the same straight line, thereby ensuring the reliability and accuracy of the detection results of the sensor.

Description

Technical Field

[0001] The invention relates to an air blowing detection technology, in particular to a base and a nozzle air blowing waveform testing device. Background Art

[0002] In the field of color sorters, multiple nozzles integrated in the nozzle are used to blow air to change the trajectory of the material to be selected, thereby achieving material sorting.

[0003] In the prior art, the nozzle assembly is first fixed, and then the sensor is installed on the three-dimensional mobile fine-tuning test bench, and then the three-dimensional mobile fine-tuning test bench moves the sensor to automatically position the nozzle openings of the nozzle assembly. Since the nozzle assembly is relatively long, the range (i.e., stroke) of the three-dimensional mobile fine-tuning test bench is limited. When performing a blowing waveform test on the entire nozzle assembly, it is necessary to manually disassemble and fix the nozzle assembly multiple times, and then it is necessary to perform XYZ three-axis adjustments multiple times to align the center of the corresponding nozzle opening of the nozzle assembly with the sensor, which results in complicated operation and cannot guarantee that the test position after each disassembly and assembly of the fixed nozzle assembly is the center (i.e., centered) position of the nozzle opening, resulting in test errors and affecting the final performance evaluation of the nozzle assembly.

[0004] In addition, the design of the three-dimensional mobile fine-tuning test bench is complex and costly. Summary of the invention

[0005] In view of the problems existing in the background technology, an object of the present invention is to provide a base and a nozzle blowing waveform testing device, which can ensure that the positions of all nozzle openings detected by the sensor are on the same straight line, thereby ensuring the reliability and accuracy of the sensor's detection results.

[0006] Another object of the present invention is to provide a base and a nozzle blowing waveform testing device, which, compared with the three-dimensional movable fine-tuning test bench of the background technology, have a simple structure and are easy to operate.

[0007] In order to achieve the above-mentioned purpose, in a first aspect of the present invention, the present invention provides a base for testing the blowing waveform of the nozzle opening of a nozzle integration, the nozzle integration is provided with a nozzle opening row, the nozzle opening row has a plurality of nozzle openings arranged at equal intervals, the plurality of nozzle openings are the same in shape and size and are aligned along the arrangement direction, the base includes a main body and two positioning claws, the main body is provided with a first through hole, the first through hole passes through the main body along the front-to-back direction of the main body, the first through hole is used to accommodate a sensor for detecting the blowing waveform which is positioned in the first through hole and aligned with a corresponding nozzle opening, the two positioning claws are symmetrically located on both sides of the first through hole in the left-right direction of the main body, each positioning claw is used to interference fit with the nozzle opening adjacent to the nozzle opening aligned with the first through hole.

[0008] In one embodiment, each positioning claw includes an insertion portion and a flange, the insertion portion is used to be inserted into the corresponding nozzle opening of the nozzle integration with interference fit, the flange is located between the insertion portion and the main body, the flange protrudes radially outward relative to the insertion portion, and the flange is used to stop on the outer peripheral wall of the corresponding nozzle opening.

[0009] In one embodiment, the vertical symmetry planes of the two positioning claws are coplanar, the left-right symmetry planes of the two positioning claws are parallel to the left-right symmetry planes of the first through hole, and the spacing between the left-right symmetry planes of each positioning claw and the left-right symmetry plane of the first through hole is set to be equal to the spacing between the left-right symmetry planes of two adjacent nozzle openings of the nozzle integration.

[0010] In one embodiment, the vertical symmetric planes of the two positioning claws are coplanar with the vertical symmetric plane of the first through hole.

[0011] In one embodiment, the first through hole is circular and is disposed at the lowest position in the vertical direction so that the vertical center plane of the sensor positioned in the first through hole is coplanar with the vertical symmetric planes of the two positioning claws.

[0012] In one embodiment, the distance between the inner side surface of the insertion portion of each positioning claw and the left-right symmetric plane of the first through hole is set to be larger than the distance between the left-right symmetric plane of the leftmost nozzle opening of the nozzle integration and the left edge of the nozzle integration; the distance between the inner side surface of the insertion portion of each positioning claw and the left-right symmetric plane of the first through hole is set to be larger than the distance between the left-right symmetric plane of the rightmost nozzle opening of the nozzle integration and the right edge of the nozzle integration.

[0013] In one embodiment, the first through hole is used to accommodate a sensor for detecting a blowing waveform with a clearance fit; the main body is also provided with a second through hole, the second through hole extends from one side of the main body in the up-down direction to the first through hole, the second through hole is connected to the first through hole, and the base also includes a fixing member, which can pass through the second through hole, and the fixing member is used to fix the sensor accommodated by the first through hole in the first through hole.

[0014] In one embodiment, the fixing member is a bolt, and the second through hole is a threaded hole.

[0015] In one embodiment, the main body is also provided with a mounting hole; the base also includes a first plate, a guide column and a spring; the first plate has a through hole, the through hole is aligned with the mounting hole in the up and down directions, a fixing piece is fixed on the side of the first plate facing the first through hole, the guide column has a cap portion and a rod portion, the rod portion of the guide column passes through the through hole of the first plate and is fixed in the mounting hole of the main body, and the spring is installed between the upper surface of the first plate and the cap portion of the guide column.

[0016] In one embodiment, the lower end of the fixing member is an upwardly concave arc surface, and the arc surface is used to complement the outer peripheral surface of the sensor.

[0017] In order to achieve the above-mentioned purpose, in the second aspect of the present invention, the present invention provides a nozzle blowing waveform testing device, which includes the base according to the first aspect of the present invention and a sensor, the sensor is used to be accommodated and positioned in the first through hole and aligned with a corresponding nozzle opening.

[0018] The beneficial effects of the present invention are as follows: In the present invention, two positioning claws are symmetrically located on both sides of the left and right directions of the first through hole of the main body, and each positioning claw is used for interference fit with the nozzle opening adjacent to the nozzle opening aligned with the first through hole, which can ensure the alignment of the sensor positioned in the first through hole with a corresponding nozzle opening, thereby ensuring that the positions of all nozzle openings detected by the sensor are on the same straight line, thereby ensuring the reliability and accuracy of the sensor's detection results. In addition, compared with the three-dimensional mobile fine-tuning test bench of the background technology, the base structure is simple and easy to operate. In addition, compared with the detection process of the background technology, nozzle integration does not have to be fixed, thereby reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a perspective view of an embodiment of nozzle integration according to the present invention.

[0020] Figure 2 1 is a perspective view of a first embodiment of a base of a nozzle blowing waveform testing device according to the present invention.

[0021] Figure 3 yes Figure 2 Front view of the fixings of the base.

[0022] Figure 4 yes Figure 2 A perspective view of the installation with the base integrated with the nozzle.

[0023] Figure 5 is a perspective view of a second embodiment of a base according to the present invention.

[0024] Figure 6 yes Figure 5 Front view of the base.

[0025] Figure 7 yes Figure 5 A three-dimensional view of some components of the base.

[0026] Figure 8 yes Figure 7 Stereoscopic diagram.

[0027] Fig. 9 yes Figure 5 A perspective view of the installation with the base integrated with the nozzle.

[0028] The reference numerals are described as follows:

[0029] 1 base 141 perforation

[0030] D1 front and rear direction 142 upper surface

[0031] D2 15 guide column in up and down direction

[0032] D3 left and right direction 151 cap part

[0033] 11 main body 152 rod

[0034] 111 first through hole 16 spring

[0035] 111b The vertical symmetric surface of the first through hole 17 The second plate

[0036] d1 spacing

[0037] 111c The distance between the left and right symmetric planes d4 of the first through hole

[0038] 2 nozzles integrated

[0039] P1 lowest position 21 nozzle row

[0040] 112 second through hole 211 nozzle opening

[0041] 113 mounting hole 211c left and right symmetric surface of the nozzle opening

[0042] 114 Top surface of the main body

[0043] 12 Positioning claw 211w outer wall

[0044] 121 Insertion portion 22 Top surface where the nozzle is integrated

[0045] 121a front end 23 left edge

[0046] 121i inner side 24 right edge

[0047] 122 Flange d2 spacing

[0048] 12b The distance between the symmetrical surfaces d3 in the vertical direction of the positioning claws

[0049] 12c The distance between the left and right symmetric surfaces of the positioning claws d5

[0050] 13 Fixing parts 3 Sensor

[0051] 131 Arc M nozzle blowing waveform test device

[0052] 14 First Board DETAILED DESCRIPTION

[0053] The accompanying drawings illustrate embodiments of the present invention, and it will be understood that the disclosed embodiments are merely examples of the present invention, which can be implemented in various forms. Therefore, the specific details disclosed herein should not be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one of ordinary skill in the art to implement the present invention in various ways.

[0054] In addition, expressions such as up, down, left, right, front and back, etc., used to indicate directions for describing the operation and construction of the components in the embodiments are not absolute but relative, and although these indications are appropriate when the components are in the positions shown in the figures, when these positions are changed, these directions should be interpreted differently to correspond to the changes.

[0055] Figure 1 is a perspective view of an embodiment of a nozzle assembly 2 according to the present invention. Figure 2 1 is a perspective view of a first embodiment of a base 1 of a nozzle blowing waveform testing device M according to the present invention. Figure 3 yes Figure 2 A front view of the fixing member 13 of the base 1. Figure 4 yes Figure 2 A perspective view of the installation of a base 1 and an integrated nozzle 2. Figure 5 is a perspective view of a second embodiment of a base 1 according to the present invention. Figure 6 yes Figure 5 A front view of the base 1. Figure 7 yes Figure 5 A three-dimensional view of some components of the base 1. Figure 8 yes Figure 7 Stereoscopic diagram. Fig. 9 yes Figure 5 A perspective view of the installation of a base 1 and an integrated nozzle 2.

[0056] The nozzle blowing waveform testing device M comprises a base 1 and a sensor 3 .

[0057] The base 1 and the sensor 3 are used to test the blowing waveform of the nozzle opening 211 of the nozzle assembly 2. Figure 1 , Figure 4 and Fig. 9 As shown, the nozzle assembly 2 is provided with a nozzle opening row 21, and the nozzle opening row 21 has a plurality of nozzle openings 211 arranged at equal intervals, and the plurality of nozzle openings 211 are of the same shape and size and aligned along the arrangement direction. In the example shown in the figure, the nozzle opening row 21 is a single row, but is not limited thereto, and can be arranged in two or more rows according to actual conditions. The shape of the nozzle opening 211 can be a rectangle as shown in the figure, but is not limited thereto, and can be a rectangle, a circle, an ellipse, etc.

[0058] The base 1 includes a main body 11 and two positioning claws 12. According to specific conditions, the base 1 may further include a fixing member 13. According to different structures of the fixing member 13, the base 1 may further include a first plate 14, a guide column 15 and a spring 16. According to actual use conditions, the base 1 may further include a second plate 17.

[0059] The main body 11 is provided with a first through hole 111. According to actual use, the main body 11 may also be provided with a second through hole 112. According to actual use, the main body 11 may also be provided with a mounting hole 113. The main body 11 has a top surface 114.

[0060] The first through hole 111 passes through the main body 11 along the front-to-back direction D1 of the main body 11. The first through hole 111 is used to accommodate the sensor 3 for detecting the blowing waveform, which is positioned in the first through hole 111 and aligned with a corresponding nozzle opening 211. Figure 2 , Figure 6 , Figure 7 As shown, the first through hole 111 is circular, but not limited thereto, the shape of the first through hole is adapted to the shape of the sensor 3, for example, the first through hole 111 can be rectangular, elliptical, etc. Figure 6 As shown, the first through hole 111 is set at the lowest position P1 in the vertical direction D2 so that the vertical center plane of the sensor 3 positioned in the first through hole 111 is coplanar with the vertical symmetric planes 12b of the two positioning claws 12 described later, thereby ensuring that the positions of all nozzle openings 211 detected by the sensor 3 are on the same straight line, thereby ensuring the reliability of the detection result. Figure 2 , Figure 4 as well as Figure 5 and Fig. 9 In the embodiment shown, the first through hole 111 is used to receive the sensor 3 for detecting the blowing waveform with clearance fit. Of course, it is not limited thereto, and according to actual use, the first through hole 111 can also receive the sensor 3 with interference fit.

[0061] The second through hole 112 extends from one side of the main body 11 in the up-down direction D2 to the first through hole 111 along the up-down direction D2, and the second through hole 112 is connected to the first through hole 111. Figure 2 , Figure 5 and Figure 6 In the figure, the second through hole 112 extends from the upper side of the main body 11 in the up-down direction D2 to the first through hole 111 along the up-down direction D2. Of course, it can also extend from the lower side of the main body 11 in the up-down direction D2 to the first through hole 111 along the up-down direction D2, or from the left or right side of the main body 11 in the left-right direction D3 to the first through hole 111.

[0062] The mounting hole 113 is used to align with a through hole 141 of the first plate 14 described later.

[0063] exist Figure 2 and Figure 5 In the illustrated embodiment, the top surface 114 is a horizontal plane and is arranged to be parallel to the horizontal top surface 22 of the nozzle assembly 2. This is very suitable for the case where the blowing waveform detection is performed on the leftmost / rightmost nozzle opening 211 of the nozzle assembly 2, because only one of the two positioning claws 12 described later will be inserted into the second nozzle opening 211 from the leftmost / rightmost side of the nozzle assembly 2 and the other of the two positioning claws 12 will be suspended in the air. Since the positioning claw 12 inserted into the second nozzle opening 211 from the leftmost / rightmost side of the nozzle assembly 2 adopts an interference fit to maintain the posture of the base 1, the sensor 3 can be kept aligned with the leftmost / rightmost nozzle opening 211. Even though the base 1 is supported by a single positioning claw 12 and may cause an extremely small visually observable deviation in the alignment between the sensor 3 and the leftmost / rightmost nozzle opening 211, the top surface 114 is a horizontal plane and is arranged to be parallel to the horizontal top surface 22 of the nozzle integration 2. During detection, force can be manually applied (for example, on the suspended positioning claw 12) and visually checked to see whether the top surface 114 is parallel to the horizontal top surface 22 of the nozzle integration 2, thereby ensuring that there is no deviation in the alignment between the sensor 3 and the leftmost / rightmost nozzle opening 211.

[0064] The two positioning claws 12 are symmetrically located on both sides of the left-right direction D3 of the first through hole 111 of the main body 11. Each positioning claw 12 is used to have an interference fit with the nozzle opening 211 adjacent to the nozzle opening 211 centered in the first through hole 111. Through the interference fit of the two positioning claws 12 with two nozzle openings 211 separated by one nozzle opening 211 among the three adjacent nozzle openings 211, the centering between the sensor 3 positioned in the first through hole 111 and the nozzle opening 211 spaced between the two nozzle openings 211 can be stably maintained, thereby ensuring that the detection positions of the corresponding nozzle openings 211 are on the same straight line, thereby improving the reliability of the detection results. As mentioned above, when the blowing waveform detection is performed on the nozzle opening 211 on the far left / right side of the nozzle integration 2, the positioning claw 12 inserted into the second nozzle opening 211 from the far left / right side of the nozzle integration 2 adopts an interference fit and will try its best to maintain the posture of the base 1, which is conducive to using manual assistance to maintain the centering of the sensor 3 and the far left / right side of the nozzle integration 2.

[0065] Each positioning claw 12 includes an inserting portion 121 and a flange 122. Figure 2 and Figure 5 shown.

[0066] The inserting portion 121 is used to be inserted into the corresponding nozzle opening 211 of the nozzle assembly 2 by interference fit. Figure 2 and Figure 5As shown. The front end 121a of the inserting portion 121 is chamfered at the edge. Preferably, the front end 121a of the inserting portion 121 is chamfered at the four edges of the top, bottom, left and right. The chamfering is conducive to the smooth guidance of the inserting portion 121 and the smooth insertion of the corresponding nozzle opening 211 of the nozzle assembly 2, and also prevents the front end 121a of the inserting portion 121 from hitting the peripheral edge of the corresponding nozzle opening 211 and damaging the peripheral edge of the nozzle opening 211.

[0067] The flange 122 is located between the inserting portion 121 and the main body 11. Figure 2 and Figure 5 The flange 122 protrudes radially outward relative to the insertion portion 121, and the flange 122 is used to stop on the outer peripheral wall 211w of the corresponding nozzle opening 211, as shown in FIG. Figure 2 and Figure 5 Shown and combined Figure 1 , Figure 4 and Fig. 9 The flange 122 is used to stop on the outer peripheral wall 211w of the corresponding nozzle opening 211, so as to ensure the required distance between the sensor 3 positioned in the first through hole 111 and the corresponding nozzle opening 211, thereby ensuring the accuracy and reliability of the detection result of the sensor 3. Preferably, as Figure 2 and Figure 5 As shown, the flange 122 is arranged relative to the entire circumference of the insertion portion 121, thereby increasing the area where the flange 122 stops on the outer peripheral wall 211w of the corresponding nozzle opening 211, further ensuring the accuracy and reliability of the detection result of the sensor 3.

[0068] like Figure 6 As shown, the vertical symmetric surfaces 12b of the two positioning claws 12 are coplanar, the left-right symmetric surfaces 12c of the two positioning claws 12 are parallel to the left-right symmetric surfaces 111c of the first through hole 111, and the spacing d1 between the left-right symmetric surfaces 12c of each positioning claw 12 and the left-right symmetric surfaces 12c of the first through hole 111 is set to be equal to the spacing d2 between the left-right symmetric surfaces 211c of two adjacent nozzle openings 211 of the nozzle assembly 2. Based on this structure, it is beneficial to align the sensor 3 positioned in the first through hole 111 with the corresponding nozzle opening 211. Preferably, the vertical symmetric surfaces 12b of the two positioning claws 12 are coplanar with the vertical symmetric surfaces 111b of the first through hole 111. When the aforementioned first through hole 111 is set at the lowest position P1 in the up-down direction D2 so that the up-down center plane of the sensor 3 positioned in the first through hole 111 is coplanar with the up-down symmetric planes 12b of the two positioning claws 12, based on the fact that the up-down symmetric planes 12b of the two positioning claws 12 are coplanar with the up-down symmetric planes 111b of the first through hole 111, it is structurally extremely beneficial for the sensor 3 positioned in the first through hole 111 to be aligned with the corresponding nozzle opening 211.

[0069] Reference Figure 6 Combined with Figure 1 , Figure 4 , Figure 5 , Fig. 9 The spacing d4 between the inner side surface 121i of the insertion portion 121 of each positioning claw 12 and the left-right symmetric surface 111c of the first through hole 111 is set to be larger than the spacing d3 between the left-right symmetric surface 211c of the leftmost nozzle opening 211 of the nozzle assembly 2 and the left side edge 23 of the nozzle assembly 2; the spacing d4 between the inner side surface 121i of the insertion portion 121 of each positioning claw 12 and the left-right symmetric surface 111c of the first through hole 111 is set to be larger than the spacing d5 between the left-right symmetric surface 211c of the rightmost nozzle opening 211 of the nozzle assembly 2 and the right side edge 24 of the nozzle assembly 2. This structural design is suitable for the above-mentioned situation of performing blowing waveform detection on the leftmost / rightmost nozzle opening 211 of the nozzle assembly 2.

[0070] The fixing member 13 can pass through the second through hole 112. The fixing member 13 is used to fix the sensor 3 received in the first through hole 111 in the first through hole 111. Figures 2 to 4 In the first embodiment of the base 1 shown, the fixing member 13 is a bolt, and accordingly, the second through hole 112 is a threaded hole. Specifically, before the sensor 3 is installed in the first through hole 111, the fixing member 13 is screwed out of the second through hole 112 by hand or with a tool and is removed from the first through hole 111; after the sensor 3 is installed in the first through hole 111, the fixing member 13 is screwed in by hand or with a tool so that the fixing member 13 enters the first through hole 111 until the fixing member 13 presses the sensor 3. Figures 5 to 9 In the second embodiment of the base 1 shown, the fixing member 13 can be a smooth rod, and accordingly, the second through hole 112 is a light hole. The fixing member 13 has an arc surface 131 concave in a direction away from the first through hole 111 at one end thereof, and the arc surface 131 is used to complement the outer peripheral surface of the sensor 3, such as Figure 3 and Figure 8 As shown, the arc surface 131 of the fixing member 13 is conducive to positioning the sensor 3 in two dimensions of the up-down direction D2 and the left-right direction D3, so as to facilitate centering the sensor 3 with the corresponding nozzle opening 211 and ensure the centering accuracy.

[0071] The first plate 14 has a through hole 141. The through hole 141 is aligned with the mounting hole 113 in the up-down direction D2. A fixing member 13 is fixed to one side of the first plate 14 facing the first through hole 111.

[0072] The guide post 15 has a cap portion 151 and a rod portion 152 .

[0073] The rod portion 152 of the guide column 15 passes through the through hole 141 of the first plate 14 and is fixed in the mounting hole 113 of the main body 11 .

[0074] The spring 16 is installed between the upper surface 142 of the first plate 14 and the cap 151 of the guide column 15. Therefore, before the sensor 3 is installed in the first through hole 111, the elastic force of the spring 16 can be manually overcome and the first plate 14 can be lifted to make the fixing member 13 escape from the first through hole 111; after the sensor 3 is installed in the first through hole 111, the manually applied force is released, and the spring 16 recovers elasticly, and the spring presses the first plate 14, and the first plate 14 drives the fixing member 13 to move toward the first through hole 111, so that the fixing member 13 enters the first through hole 111 and presses the sensor 3. The elasticity of the spring 16 can be determined according to actual needs. Compared with the method in which the fixing member 13 is a bolt and the second through hole 112 is a threaded hole, the method in which the fixing member 13, the first plate 14, the guide column 15 and the spring 16 are used, because the elastic effect of the spring 16 can be flexibly and controllably selected, the pressing force of the fixing member 13 pressing the sensor 3 is flexible, controllable and high in precision.

[0075] The second plate 17 is vertically disposed on the upper surface 142 of the first plate 14. Figures 5 to 8 The second plate 17 facilitates the operator to apply force to lift the first plate 14 by hand, thereby improving the convenience of operation.

[0076] exist Figure 5 and Figure 6 In the example, there are two guide posts 15, two springs 16, two through holes 141 and two mounting holes 113, and the two through holes 141 are symmetrical relative to the fixing member 13 along the left-right direction D3. Therefore, after the sensor 3 is installed in the first through hole 111, the forces applied by the two springs 16 to the first plate 14 are symmetrical, so that the force transmitted to the fixing member 13 via the first plate 14 and the force applied by the fixing member 13 to the sensor 3 is uniform in the left-right direction D3, which is beneficial to the centering of the sensor 3 and the corresponding nozzle opening 211 and ensures the accuracy of the centering.

[0077] The sensor 3 is used to be received and positioned in the first through hole 111 and aligned with a corresponding nozzle opening 211. The method of positioning the sensor 3 in the first through hole 111 is not limited to the aforementioned method. Figure 2 and Figure 5 For example, the sensor 3 can also be inserted into the first through hole 111 by interference fit. When the sensor 3 can also be inserted into the first through hole 111 by interference fit, the aforementioned fixing member 13, the first plate 14, the guide column 15, the spring 16 and the second plate 17 can all be omitted.

[0078] In summary, in the present invention, two positioning claws 12 are symmetrically located on both sides of the left-right direction D3 of the first through hole 111 of the main body 11, and each positioning claw 12 is used for interference fit with the nozzle opening 211 adjacent to the nozzle opening 211 centered in the first through hole 111, which can ensure the centering of the sensor 3 positioned in the first through hole 111 and the corresponding nozzle opening 211, thereby ensuring that the positions of all nozzle openings 211 detected by the sensor 3 are on the same straight line, thereby ensuring the reliability and accuracy of the detection results of the sensor 3. In addition, compared with the three-dimensional fine-tuning test bench of the background technology, the base 1 has a simple structure and is easy to operate. In addition, compared with the detection process of the background technology, the nozzle integration 2 does not have to be fixed, thereby reducing costs.

[0079] The above detailed description describes multiple exemplary embodiments, but this document is not intended to be limited to the explicitly disclosed combinations. Therefore, unless otherwise stated, the various features disclosed herein may be combined together to form multiple additional combinations that are not shown for the sake of simplicity.

Claims

1. A nozzle blowing waveform testing device (M), characterized in that: It comprises a base (1) and a sensor (3), The base (1) is used to test the blowing waveform of the nozzle opening (211) of the nozzle assembly (2). The nozzle assembly (2) is provided with a nozzle opening row (21). The nozzle opening row (21) has a plurality of nozzle openings (211) arranged at equal intervals. The plurality of nozzle openings (211) are of the same shape and size and are aligned along an arrangement direction. The base (1) comprises a main body (11) and two positioning claws (12). The main body (11) is provided with a first through hole (111), the first through hole (111) passing through the main body (11) along a front-rear direction (D1) of the main body (11), the first through hole (111) being used to accommodate a sensor (3) for detecting a blowing waveform, which is positioned in the first through hole (111) and aligned with a corresponding nozzle opening (211). The two positioning claws (12) are symmetrically located on both sides of the first through hole (111) of the main body (11) in the left-right direction (D3), and each positioning claw (12) is used for interference fit with the nozzle opening (211) adjacent to the nozzle opening (211) aligned with the first through hole (111); The symmetric surfaces (12b) of the two positioning claws (12) in the vertical direction are coplanar. The left-right symmetric planes (12c) of the two positioning claws (12) are parallel to the left-right symmetric planes (111c) of the first through hole (111), and the spacing (d1) between the left-right symmetric planes (12c) of each positioning claw (12) and the left-right symmetric planes (12c) of the first through hole (111) is set to be equal to the spacing (d2) between the left-right symmetric planes (211c) of two adjacent nozzle openings (211) of the nozzle assembly (2); The symmetric surfaces (12b) of the two positioning claws (12) in the up-down direction are coplanar with the symmetric surface (111b) of the first through hole (111) in the up-down direction; The first through hole (111) is arranged at the lowest position (P1) in the up-down direction (D2) so that the up-down center plane of the sensor (3) positioned in the first through hole (111) is coplanar with the up-down symmetric planes (12b) of the two positioning claws (12).

2. The nozzle blowing waveform testing device (M) according to claim 1, characterized in that: Each positioning claw (12) includes an insertion portion (121) and a flange (122); the insertion portion (121) is used to be inserted into the corresponding nozzle opening (211) of the nozzle assembly (2) in an interference fit; the flange (122) is located between the insertion portion (121) and the main body (11); the flange (122) protrudes radially outward relative to the insertion portion (121); and the flange (122) is used to stop on the outer peripheral wall (211w) of the corresponding nozzle opening (211).

3. The nozzle blowing waveform testing device (M) according to claim 2, characterized in that: The spacing (d4) between the inner side surface (121i) of the insertion portion (121) of each positioning claw (12) and the left-right symmetric surface (111c) of the first through hole (111) is set to be larger than the spacing (d3) between the left-right symmetric surface (211c) of the leftmost nozzle opening (211) of the nozzle assembly (2) and the left side edge (23) of the nozzle assembly (2); The spacing (d4) between the inner side surface (121i) of the insertion portion (121) of each positioning claw (12) and the left-right symmetric surface (111c) of the first through hole (111) is set to be larger than the spacing (d5) between the left-right symmetric surface (211c) of the rightmost nozzle opening (211) of the nozzle assembly (2) and the right side edge (24) of the nozzle assembly (2).

4. The nozzle blowing waveform testing device (M) according to claim 2, characterized in that: The first through hole (111) is used to accommodate a sensor (3) for detecting a blowing waveform in a clearance-fitting manner; The main body (11) is further provided with a second through hole (112), the second through hole (112) extending from one side of the main body (11) in the up-down direction (D2) along the up-down direction (D2) to the first through hole (111), the second through hole (112) and the first through hole (111) being connected. The base (1) further comprises a fixing member (13), The fixing member (13) can pass through the second through hole (112), and the fixing member (13) is used to fix the sensor (3) received by the first through hole (111) in the first through hole (111).

5. The nozzle blowing waveform testing device (M) according to claim 4, characterized in that: The fixing member (13) is a bolt, and the second through hole (112) is a threaded hole.

6. The nozzle blowing waveform testing device (M) according to claim 4, characterized in that: The main body (11) is also provided with a mounting hole (113); The base (1) also includes a first plate (14), a guide column (15) and a spring (16); The first plate (14) has a through hole (141), the through hole (141) is aligned with the mounting hole (113) in the up-down direction (D2), and a fixing member (13) is fixed to a side of the first plate (14) facing the first through hole (111). The guide column (15) comprises a cap portion (151) and a rod portion (152). The rod portion (152) of the guide column (15) passes through a through hole (141) of the first plate (14) and is fixed in a mounting hole (113) of the main body (11). The spring (16) is installed between the upper surface (142) of the first plate (14) and the cap portion (151) of the guide column (15).

7. The nozzle blowing waveform testing device (M) according to any one of claims 4 to 6, characterized in that: One end of the fixing member (13) close to the first through hole (111) has a curved surface (131) that is concave in a direction away from the first through hole (111), and the curved surface (131) is used to complement the outer peripheral surface of the sensor (3).

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