Floating sampling device

Abstract

The present invention relates to a floating sampling device, which belongs to the field of automatic control. The present invention comprises a lead-out shaft, a lead-out shaft synchronous pulley, an encoder, a sliding plate 1, a sliding plate 2, a fixed plate, a sampling wheel, a clamping wheel, a sampling shaft 1, a sampling wheel synchronous wheel, a sampling shaft 2, a synchronous belt, a spring 1 and a spring 2, one end of the lead-out shaft is connected to the encoder, the other end of the lead-out shaft is provided with a lead-out shaft synchronous pulley, the lead-out shaft synchronous pulley and two sampling wheel synchronous wheels are connected by a synchronous belt, the sampling shaft 1 is on the sliding plate 2, the clamping wheel is outside the sampling shaft 1, the sliding plate 1 and the sliding plate 2 are both slidably connected to the fixed plate, the two ends of the sliding plate 1 and the sliding plate 2 are respectively provided with a spring 1 and a spring 2, one end of the sampling shaft 2 is provided with a sampling wheel, and the other end of the sampling shaft 2 is provided with a sampling wheel synchronous wheel. The present invention has a simple and reasonable structural design, is safe and reliable, is easy to install, has high precision, and obtains a relatively stable pulse and a better sampling image.

Description

Technical Field

[0001] The present invention relates to a device, in particular to a floating sampling device, which is applied in the field of automatic control to obtain the position signal of a moving conveyor belt, provide a trigger signal for a camera, and obtain the accurate position of an object on the conveyor belt; it can also realize continuous cutting while moving and provide a position signal for continuous cutting while moving. Background Art

[0002] With the popularization of automatic cutting, in the process of loading materials in the assembly line mode, the fabric contour is obtained by the top camera, the camera trigger pulse is obtained by the conveyor roller transmission method, and the camera trigger pulse is obtained by the code disk, but these methods all have certain limitations.

[0003] When an adhesive conveyor belt is used or the weight of the conveyed fabric changes, it will cause pulse changes at the connection (slippage), and the weight change of the material directly affects the change of mechanical efficiency, causing pulse changes and causing sampling errors.

[0004] Therefore, it is particularly necessary to provide a method with a simple and reasonable structural design, which can solve the above problems and obtain a more accurate sampling pulse. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a floating sampling device which has a simple and reasonable structural design, is safe and reliable, is easy to install, has high precision, and can obtain relatively stable pulses and better sampling images.

[0006] The technical solution adopted by the present invention to solve the above-mentioned problem is: the floating sampling device comprises a lead-out shaft, a lead-out shaft synchronous pulley, an encoder connecting seat and an encoder, the lead-out shaft is arranged on the encoder connecting seat, one end of the lead-out shaft is connected to the encoder, and the other end of the lead-out shaft is provided with a lead-out shaft synchronous pulley, characterized in that it also comprises a sliding plate 1, a sampling wheel fixing seat, a sampling wheel, a clamping wheel, a sampling shaft 1, a sliding plate, a fixing plate, a sampling wheel synchronous wheel, a sampling shaft 2, a synchronous belt, a spring 1 and a spring 2, the lead-out shaft synchronous pulley and two identical sampling wheel synchronous wheels are connected to each other through a synchronous belt, the sliding plate 1 is connected to the encoder connecting seat, the sampling wheel fixing seat is connected to the sliding plate 1, the sampling shaft 1 is on the sliding plate 2, the clamping wheel is rotatably arranged outside the sampling shaft 1, the sliding plate 1 and the sliding plate 2 are both slidably connected to the fixing plate, the two ends of the sliding plate 1 and the sliding plate 2 are respectively provided with a spring 1 and a spring 2, the sampling shaft 2 is connected to the sampling wheel fixing seat, one end of the sampling shaft 2 is provided with a sampling wheel, and the other end of the sampling shaft 2 is provided with a sampling wheel synchronous wheel.

[0007] Preferably, the present invention further comprises a sliding membrane 1 and a sliding membrane 2, wherein the sliding plate 1 is slidably connected to the fixed plate via the sliding membrane 1, and the sliding plate 2 is slidably connected to the fixed plate via the sliding membrane 2.

[0008] Preferably, the present invention further comprises a coupling, and the lead-out shaft is connected to the encoder via the coupling.

[0009] Preferably, the present invention further comprises a sliding fixed pin shaft 1 and a sliding fixed pin shaft 2, wherein the sliding fixed pin shaft 1 and the sliding fixed pin shaft 2 are both fixed on the fixed plate.

[0010] Preferably, the present invention further comprises a pressure wheel end cover, and the pressure wheel end cover cooperates with the pressure wheel.

[0011] Preferably, the present invention further comprises a sampling shaft, a spacer sleeve and a bearing, wherein the sampling shaft is provided with a matching sampling shaft, a spacer sleeve and a bearing.

[0012] As a preference, the outer surfaces of the sampling wheel and the sampling wheel synchronization wheel of the present invention are both made of a material with high friction.

[0013] Compared with the prior art, the present invention has the following advantages and effects: 1. The overall structural design is simple and reasonable, safe and reliable, easy to install, and has high precision. It can obtain relatively stable pulses and better sampling images, and solve the problem of wrong sampling deviation in the splicing seams of spliced ​​conveyor belts; 2. The double floating structure overcomes the error caused by sliding caused by unreliable contact between the sampling wheel and the conveyor belt, and achieves higher sampling accuracy; 3. Through the preset spring force, it is achieved that under any circumstances, the two sampling wheels can be in full contact with the conveyor belt, and through the pressure wheel (floating) or the slide plate (floating or fixed) on the back of the conveyor belt, stable pressure is guaranteed to obtain a stable sampling signal; whether the conveyor belt is actively driven or passively driven, it does not affect the acquisition of accurate sampling signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main structure of an embodiment of the present invention.

[0015] Figure 2 It is a left-view structural schematic diagram of an embodiment of the present invention.

[0016] Figure 3 It is a right view structural schematic diagram of an embodiment of the present invention.

[0017] In the figure: lead-out shaft 1, lead-out shaft synchronous pulley 2, sliding plate 1 3, lead-out shaft sleeve 4, encoder connecting seat 5, coupling 6, encoder 7, sampling wheel fixing seat 8, sampling shaft spacer 9, sampling wheel 10, conveyor belt 11, pressure wheel end cover 12, pressure wheel 13, sampling shaft 1 14, sampling shaft 1 spacer 15, bearing 16, sliding plate 2 17, fixing plate 18, sampling wheel synchronous wheel 19, sampling shaft 2 20, synchronous belt 21, spring 1 22, spring 2 23, sliding membrane 1 24, sliding membrane 2 25, sliding fixed pin 1 26, sliding fixed pin 2 27. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and by way of examples. The following examples are intended to explain the present invention but the present invention is not limited to the following examples.

[0019] Example

[0020] See also Figures 1 to 3 The floating sampling device of this embodiment mainly includes a sliding plate 1 3, a sampling wheel fixing seat 8, a sampling wheel 10, a clamping wheel 13, a sampling shaft 14, a sliding plate 2 17, a fixing plate 18, a sampling wheel synchronous wheel 19, a sampling shaft 20, a synchronous belt 21, a spring 1 22, a spring 23, a lead-out shaft 1, a lead-out shaft synchronous pulley 2 and an encoder 7.

[0021] In this embodiment, the lead-out shaft 1 is arranged on the encoder connecting seat 5, one end of the lead-out shaft 1 is connected to the encoder 7 through a coupling 6, and the other end of the lead-out shaft 1 is provided with a lead-out shaft synchronous pulley 2, and the lead-out shaft 1 is provided with a bearing and a lead-out shaft sleeve 4.

[0022] In this embodiment, the lead-out shaft synchronous pulley 2 and two identical sampling wheel synchronous wheels 19 are connected to each other through a synchronous belt 21, the sliding plate 3 is connected to the encoder connecting seat 5, the sampling wheel fixing seat 8 is connected to the sliding plate 3, and the sampling wheel fixing seat 8 is provided with a bearing and a sampling shaft spacer 9.

[0023] In this embodiment, the sampling shaft 14 is on the sliding plate 17, the pressure wheel 13 is rotatably arranged outside the sampling shaft 14, the pressure wheel end cover 12 cooperates with the pressure wheel 13, and the sampling shaft 14 is provided with a sampling shaft spacer 15 and a bearing 16.

[0024] In this embodiment, the sliding plate 1 3 and the sliding plate 2 17 are both slidably connected to the fixed plate 18 , and a spring 1 22 and a spring 23 are respectively disposed at both ends of the sliding plate 1 3 and the sliding plate 2 17 .

[0025] In this embodiment, the sliding plate 1 3 is slidably connected to the fixed plate 18 via a sliding membrane 1 24 , and the sliding plate 2 17 is slidably connected to the fixed plate 18 via a sliding membrane 2 25 .

[0026] The sliding plate 1 3 of this embodiment is indispensable, while the sliding plate 2 17 is variable and can be selected and adjusted according to actual conditions.

[0027] In this embodiment, the second sampling shaft 20 is connected to the sampling wheel fixing seat 8 , one end of the second sampling shaft 20 is provided with the sampling wheel 10 , and the other end of the second sampling shaft 20 is provided with the sampling wheel synchronization wheel 19 .

[0028] In this embodiment, the sliding fixing pin shaft 1 26 and the sliding fixing pin shaft 27 are both fixed on the fixing plate 18 .

[0029] In this embodiment, the outer surfaces of the sampling wheel 10 and the sampling wheel synchronization wheel 19 are both made of high-friction materials; the material is selected according to actual conditions.

[0030] This embodiment establishes no less than two sampling wheels with the same outer diameter (even if multiple sampling wheels are established, only two of them are actually functional), the outer surface of the sampling wheel is made of a material with higher friction, and the spacing between the sampling wheels should be larger than the size of the bonding seam.

[0031] In this embodiment, the two lead-out shafts 1 are provided with lead-out shaft synchronous pulleys 2, and the sampling shaft 20 is provided with a sampling wheel synchronous wheel 19. The two sampling synchronous wheels 19 and the encoder 7 are fixed on the same plate sliding plate 3 through a bearing seat. The lead-out shaft synchronous pulley 2 and the two identical sampling wheel synchronous wheels 19 are connected by a synchronous belt 21 to achieve synchronous rotation.

[0032] This embodiment has no less than three pressing wheel structures, or a slide plate structure is adopted, and the three pressing wheels or slide plates are fixed on a sliding plate 2 17, and some of the pressing wheels can be completed by means of parallel conveying rollers.

[0033] In this embodiment, the sliding plate 1 3 and the sliding plate 2 17 are installed on the fixed plate 18, and can slide relative to the fixed plate 18 through the set waist circular holes, and are respectively connected to the fixed plate 18 through springs. The conveyor belt 11 passes between the sampling wheel 10 and the clamping wheel 13 between the sliding plate 1 3 and the sliding plate 2 17. Since the spring tension has been set in advance, it can be ensured that the wheels can fit precisely on the conveyor belt 11 to ensure the reliability of the transmission; a sliding membrane structure is adopted on the contact surface between the sliding plate 1 3 and the sliding plate 2 17 and the fixed plate 18, so that the sliding between the plates is flexible and reliable.

[0034] In this embodiment, the sliding plate 1 3 and the sliding plate 2 17 and the fixed plate 18 adopt a spring structure. The sliding plate mechanism of the B plate in the simplified mechanism can be a fixed structure, but only the sliding plate 1 3 and the fixed plate 18 need to adopt a spring structure.

[0035] The working mode of this embodiment is as follows: in normal operation, the two sampling wheel synchronous wheels 19 rotate synchronously, and the encoder 7 is driven to count and output pulses through the lead-out shaft synchronous pulley 2; when the connection position of the conveyor belt 11 passes through a sampling wheel synchronous wheel 19, one sampling wheel synchronous wheel 19 slides, and the other sampling wheel synchronous wheel 19 drives the lead-out shaft synchronous pulley 2 to rotate, thereby realizing normal counting; when the connection position of the conveyor belt 11 passes through a sampling wheel synchronous wheel 19, the two wheels slide, but at this time the other wheel rotates normally to realize counting; when the material on the conveyor belt 11 changes in weight, as long as it is ensured that the material does not slide relative to the conveyor belt 11, the image obtained is accurate, and the efficiency of the conveying roller does not affect the sampling result.

[0036] The clamping wheel 13 in this embodiment can be used as an axis or a plane. If a through axis is used, only two clamping wheels 13 need to be used. If two through axes are used, only one clamping wheel 13 is used. A plane can also be selected. Different choices can be made according to actual conditions.

[0037] Through the above description, those skilled in the art can already implement it.

[0038] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different, and the above content described in this specification is only an example of the structure of the present invention. All equivalent changes or simple changes made based on the structure, features and principles described in the patent concept of the present invention are included in the protection scope of the patent of the present invention. Technicians in the technical field of the present invention can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the present invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A floating sampling device for obtaining trigger pulses for a camera on a conveyor belt, comprising a lead-out shaft, a lead-out shaft synchronous pulley, an encoder connection seat, a coupling and an encoder, wherein the lead-out shaft is arranged on the encoder connection seat, one end of the lead-out shaft is connected to the encoder, and the other end of the lead-out shaft is provided with a lead-out shaft synchronous pulley, characterized in that: The invention also includes a sliding plate 1, a sliding plate 2, a fixed plate, a sampling wheel fixing seat, a sampling wheel, a clamping wheel, a sampling shaft 1, a sampling wheel synchronous wheel, a sampling shaft 2, a synchronous belt, a spring 1 and a spring 2. The synchronous belt pulley of the lead-out shaft and two identical sampling wheel synchronous wheels are connected by a synchronous belt to realize synchronous rotation. The sliding plate 1 is connected to the encoder connecting seat, the sampling wheel fixing seat is connected to the sliding plate 1, the sampling shaft 1 is on the sliding plate 2, the clamping wheel is rotatably arranged outside the sampling shaft 1, the sliding plate 1 and the sliding plate 2 are both slidably connected to the fixed plate, springs 1 and 2 are respectively arranged at both ends of the sliding plate 1 and the sliding plate 2, the springs 1 and 2 are respectively connected to the fixed plate, the sliding plate 1 and the sliding plate 2 slide relative to the fixed plate through the set waist round hole, the sliding plate 1 and the sliding plate 2 are The contact surface of the fixed plate adopts a sliding membrane structure, and the sampling shaft 2 is connected to the sampling wheel fixing seat. A sampling wheel is arranged at one end of the sampling shaft 2, and a sampling wheel synchronous wheel is arranged at the other end of the sampling shaft 2; the lead-out shaft is connected to the encoder through a coupling, and the outer surfaces of the sampling wheel and the sampling wheel synchronous wheel are made of high-friction materials, and the spacing between the sampling wheels is larger than the size of the bonding seam of the conveyor belt; the conveyor belt passes between the sampling wheel and the clamping wheel, and the sampling wheel and the clamping wheel are attached to the conveyor belt. During normal operation, the two sampling wheel synchronous wheels rotate synchronously, and the encoder counts and outputs pulses through the lead-out shaft synchronous pulley; when the conveyor belt connection position passes through a sampling wheel synchronous wheel, one sampling wheel synchronous wheel slides, and the other sampling wheel synchronous wheel drives the lead-out shaft synchronous pulley to rotate, thereby achieving normal counting.

2. The floating sampling device according to claim 1, characterized in that: It also includes a sliding film 1 and a sliding film 2. The sliding plate 1 is slidably connected to the fixed plate via the sliding film 1, and the sliding plate 2 is slidably connected to the fixed plate via the sliding film 2.

3. The floating sampling device according to claim 1, characterized in that: It also includes a sliding fixed pin shaft 1 and a sliding fixed pin shaft 2, and the sliding fixed pin shaft 1 and the sliding fixed pin shaft 2 are both fixed on the fixing plate.

4. The floating sampling device according to claim 1, characterized in that: It also includes a pressure wheel end cover, which cooperates with the pressure wheel.

5. The floating sampling device according to claim 1, characterized in that: It also includes a sampling shaft, a spacer sleeve and a bearing, wherein the sampling shaft is provided with a matching sampling shaft, a spacer sleeve and a bearing.

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