Non-contact broken rod detection structure

Abstract

The utility model discloses a non-contact type broken rod detection structure which comprises a bearing plate, a plurality of rotating shafts, a plurality of detection pieces and a plurality of photoelectric switches. A plurality of rotating shafts sequentially penetrate through the bearing plate in the length direction of the bearing plate and can rotate relative to the bearing plate, and one end of each rotating shaft is connected with a roller; the plurality of detection sheets are in one-to-one correspondence with the plurality of rotating shafts, and each detection sheet is arranged at the other end of each corresponding rotating shaft; a plurality of photoelectric switches are sequentially arranged on one side of the bearing plate in the length direction of the bearing plate, the photoelectric switches are correspondingly arranged above the rotating shaft, and each photoelectric switch is provided with an induction channel for the detection piece to pass through. The non-contact broken rod detection structure can detect the operation condition of each roller rod, is not easily influenced by dust, and is high in reliability.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery manufacturing, and specifically relates to a non-contact broken rod detection structure. Background Art

[0002] The existing roller furnaces in the lithium battery industry all use silicon carbide rollers as the main carrier of transmission. Due to the corrosion of various gases and wear of the saggers during the production process, the rollers are prone to breakage. If the rollers cannot be detected in time, the saggers will be overloaded, causing more rollers to break and materials to fall, resulting in greater losses. Therefore, a reliable and safe broken rod detection is particularly important. Currently, the market is in the form of arc sheets plus optical fiber shooting. This form is greatly affected by dust, requires frequent wiping of the optical fiber, and is inconvenient to use. There is also a spring-type single-point broken rod detection. This structure has various false alarms, spring failure over time, and poor stability.

[0003] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0004] The utility model aims to provide a non-contact broken rod detection structure, which can detect the running condition of each roller rod and has high reliability.

[0005] In order to achieve the above-mentioned purpose, a specific embodiment of the utility model provides a non-contact broken rod detection structure, which includes: a carrier plate, a plurality of rotating shafts, a plurality of detection sheets and a plurality of photoelectric switches. A plurality of rotating shafts are sequentially arranged through the carrier plate along the length direction of the carrier plate and can rotate relative to the carrier plate, and one end of the rotating shaft is connected to the roller; a plurality of detection sheets correspond to the plurality of rotating shafts one by one, and each detection sheet is arranged at the other end of each corresponding rotating shaft; a plurality of photoelectric switches are sequentially arranged on one side of the carrier plate along the length direction of the carrier plate, and the photoelectric switches are correspondingly arranged above the rotating shaft, and each photoelectric switch has a sensing channel for the detection sheet to pass through.

[0006] In one or more embodiments of the present invention, a connecting bracket is provided at one end of the rotating shaft for connecting the roller to the rotating shaft.

[0007] In one or more embodiments of the utility model, the connecting bracket includes: a bracket body and a fixing pin. The bracket body is connected to one end of the rotating shaft; the fixing pin is detachably connected to the bracket body and is used to fix the roller to the bracket body.

[0008] In one or more embodiments of the present invention, the sensing channel is opened on a side of the photoelectric switch close to the rotating shaft, and the photoelectric switch is constructed in an inverted "U" shape.

[0009] In one or more embodiments of the present invention, a fixing bracket extending along the length direction of the carrying plate is provided on one side of the carrying plate and is used to connect the photoelectric switch.

[0010] In one or more embodiments of the present invention, the fixed bracket has a horizontal section and a vertical extension section extending downward relative to the horizontal section, and an accommodation space is formed between the supporting plate, the horizontal section and the vertical extension section, and the photoelectric switch is at least partially accommodated in the accommodation space.

[0011] In one or more embodiments of the present invention, a plurality of mounting bases are disposed on one side of the supporting plate, and the mounting bases are sleeved on the rotating shaft to fix the rotating shaft.

[0012] In one or more embodiments of the present invention, the detection sheet has a first working state and a second working state. In the first working state, the detection sheet is located in the sensing channel and the photoelectric switch generates a photoelectric signal. In the second working state, the detection sheet is located outside the sensing channel.

[0013] In one or more embodiments of the present invention, in the first working state, at least a portion of the detection sheet is located in the sensing channel.

[0014] In one or more embodiments of the present invention, the detection sheet has a first sensing section and a second sensing section that are symmetrical with respect to the center of the rotation axis.

[0015] Compared with the prior art, the non-contact broken rod detection structure of the utility model is provided with a detection sheet and a photoelectric switch for each rotating shaft, which can accurately detect whether each roller rod in the roller table is broken through the photoelectric signal of each photoelectric switch, and promptly issue an instruction to stop the operation of the roller rod to avoid other roller rods being affected and broken. There is no contact between the detection sheet and the photoelectric switch, which can increase the service life of both. In addition, the fixed bracket can shield the photoelectric switch to reduce the influence of dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a three-dimensional diagram of a non-contact broken rod detection structure in one embodiment of the utility model;

[0018] Figure 2 This is a front view of a non-contact broken rod detection structure in one embodiment of the utility model;

[0019] Figure 3 It is a side view of a non-contact broken rod detection structure in one embodiment of the utility model.

[0020] Description of main reference numerals:

[0021] 1-carrying plate, 2-rotating shaft, 21-connecting bracket, 211-bracket body, 212-fixed shaft, 3-detection sheet, 31-first sensing section, 32-second sensing section, 4-photoelectric switch, 41-sensing channel, 5-fixed bracket, 51-horizontal section, 52-vertical extension section, 53-accommodating space, 6-installation base. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0023] like Figure 1-3 As shown, a non-contact broken rod detection structure in one embodiment of the utility model includes: a supporting plate 1, a plurality of rotating shafts 2, a plurality of detection sheets 3 and a plurality of photoelectric switches 4. A plurality of rotating shafts 2 are sequentially arranged on the supporting plate 1 along the length direction of the supporting plate 1 and can rotate relative to the supporting plate 1, and one end of each rotating shaft 2 is connected to a roller. A plurality of detection sheets 3 are arranged corresponding to the rotating shafts 2, and each detection sheet 3 is arranged at the other end of the rotating shaft 2. A plurality of photoelectric switches 4 are sequentially arranged on one side of the supporting plate 1 along the length direction of the supporting plate 1, and the photoelectric switches 4 are correspondingly arranged above the rotating shaft 2, and each photoelectric switch 4 has a sensing channel 41 for the detection sheet 3 to pass through.

[0024] In the above embodiment, each rotating shaft 2 is correspondingly provided with a detection sheet 3 and a photoelectric switch 4. The photoelectric switch 4 can emit light and receive the emitted light to generate a photoelectric signal and transmit the photoelectric signal to the corresponding controller. When the detection sheet 3 passes through the sensing channel 41, the detection sheet can block the photoelectric switch 4 from receiving the light, so that the photoelectric switch 4 cannot generate a photoelectric signal. When the roller bar is broken, the detection sheet 3 cannot pass through the sensing channel 41 or is always in the sensing channel 41, and the light of the photoelectric switch 4 is in a state of being received or not being received. The photoelectric switch 4 will continue to generate a photoelectric signal or no photoelectric signal is generated for a long time. The controller determines whether the detection sheet 3 stops rotating and whether the roller bar is broken according to the time of continuous generation of the photoelectric signal or no photoelectric signal. The non-contact broken rod detection structure can accurately detect whether each roller bar in the roller table is broken through the photoelectric signal of each photoelectric switch 4, and issue an instruction to stop the operation of the roller bar in time to avoid other roller bars being affected and broken.

[0025] In one embodiment, a connecting bracket 21 is provided at one end of the rotating shaft 2 for connecting the roller bar to the rotating shaft 2, so that the rotating shaft 2 can rotate together with the roller bar. Specifically, the connecting bracket 21 includes a bracket body 211 and a fixing pin 212. The bracket body 211 is connected to one end of the rotating shaft 2. The fixing pin 212 is detachably connected to the bracket body 211. A fixing hole is provided on the roller bar, and the fixing pin 212 can be inserted into the bracket body 211 and the fixing hole to fix the roller bar to the bracket body 211 to achieve synchronous rotation of the roller bar and the rotating shaft 2. The connecting bracket 21 can achieve rapid replacement of the roller bar.

[0026] The other end of the rotating shaft 2 is connected to a detection sheet 3. The roller can drive the rotating shaft 2 and the detection sheet 3 to rotate together, so that the detection sheet 3 will pass through the photoelectric switch 4, so that the photoelectric switch 4 cannot receive the emitted light. When the roller is broken and cannot continue to rotate, the detection sheet 3 stops rotating accordingly, and the photoelectric switch 4 continues to generate a photoelectric signal or continues to generate no photoelectric signal, so that the controller can determine that the roller is broken according to the photoelectric signal and issue a command to stop the roller.

[0027] In order to improve the reliability of the detection sheet 3 and the photoelectric switch 4, the photoelectric switch 4 is provided with a sensing channel 41. The detection sheet 3 can pass through the sensing channel 41 without contact or friction with the photoelectric switch 4, so as to improve the life of the detection sheet 3 and the photoelectric switch 4 and avoid the influence of temperature and dust on the photoelectric switch 4.

[0028] In one embodiment, the sensing channel 41 is opened on a side of the photoelectric switch 4 close to the rotating shaft 2, and the photoelectric switch 4 is constructed in an inverted "U" shape. The detection sheet 3 has a first working state and a second working state. In the first working state, the detection sheet 3 is located in the sensing channel 41, and the photoelectric switch 4 generates a photoelectric signal; in the second working state, the detection sheet 3 is located outside the sensing channel 41. Further, in the first working state, at least part of the detection sheet 3 is located in the sensing channel 41 to ensure the generation of the photoelectric signal.

[0029] Preferably, the detection sheet 3 has a first sensing section 31 and a second sensing section 32 which are symmetrical with respect to the center of the rotating shaft 2. Such an arrangement can avoid false alarms caused by the detection sheet 3 being broken while the roller bar is not broken, thereby not affecting the normal operation of the roller table.

[0030] In order to improve the connection stability between the photoelectric switch 4 and the carrier plate 1, a fixing bracket 5 extending along the length direction of the carrier plate 1 is provided on one side of the carrier plate 1 for connecting the photoelectric switch 4. In addition to connecting the photoelectric switch 4, the fixing bracket 5 can also partially shield the photoelectric switch 4 to prevent dust from affecting the photoelectric switch 4. Specifically, the fixing bracket 5 has a horizontal section 51 and a vertical extension section 52 extending downward relative to the horizontal section 51. An accommodating space 53 is formed between the carrier plate 1, the horizontal section 51 and the vertical extension section 52. The photoelectric switch 4 is at least partially accommodated in the accommodating space 53, so that the fixing bracket 5 can shield the photoelectric switch 4 to prevent dust from interfering.

[0031] In one embodiment, a plurality of mounting bases 6 are further provided on one side of the carrier plate 1 and the mounting bases 6 are sleeved on the rotating shaft 2. The mounting bases 6 are provided with oil seals and bearings inside so as to seal and lubricate the rotating shaft 2 while fixing the rotating shaft 2 to prevent the rotating shaft 2 from being stuck.

[0032] In summary, each rotating shaft 2 of the non-contact broken rod detection structure of the utility model is correspondingly provided with a detection sheet 3 and a photoelectric switch 4, which can accurately detect whether each roller rod in the roller table is broken through the photoelectric signal of each photoelectric switch 4, and promptly issue an instruction to stop the operation of the roller rod to avoid other roller rods being affected and broken. There is no contact between the detection sheet 3 and the photoelectric switch 4, which can increase the service life of both. In addition, the fixed bracket 5 can shield the photoelectric switch 4 to reduce the influence of dust.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A non-contact broken rod detection structure, characterized in that: include: Loading plate; A plurality of rotating shafts are sequentially arranged along the length direction of the carrying plate and can rotate relative to the carrying plate, and one end of the rotating shaft is connected to the roller; A plurality of detection pieces, corresponding one to one with the plurality of rotating shafts, each detection piece being arranged at the other end of each corresponding rotating shaft; and A plurality of photoelectric switches are sequentially arranged on one side of the carrier plate along the length direction of the carrier plate, the photoelectric switches are correspondingly arranged above the rotating shaft, and each photoelectric switch has a sensing channel for the detection sheet to pass through.

2. The non-contact broken rod detection structure according to claim 1, characterized in that: A connecting bracket is provided at one end of the rotating shaft for connecting the roller to the rotating shaft.

3. The non-contact broken rod detection structure according to claim 2, characterized in that: The connecting bracket comprises: A bracket body connected to one end of the rotating shaft; and A fixing pin is detachably connected to the bracket body and is used to fix the roller to the bracket body.

4. The non-contact broken rod detection structure according to claim 1, characterized in that: The sensing channel is opened on a side of the photoelectric switch close to the rotating shaft, and the photoelectric switch is constructed in an inverted "U" shape.

5. The non-contact broken rod detection structure according to claim 1, characterized in that: A fixing bracket extending along the length direction of the carrying plate is arranged on one side of the carrying plate and is used for connecting the photoelectric switch.

6. The non-contact broken rod detection structure according to claim 5, characterized in that: The fixing bracket has a horizontal section and a vertical extension section extending downward relative to the horizontal section. An accommodating space is formed between the bearing plate, the horizontal section and the vertical extension section. The photoelectric switch is at least partially accommodated in the accommodating space.

7. The non-contact broken rod detection structure according to claim 1, characterized in that: A plurality of mounting bases are arranged on one side of the bearing plate, and the mounting bases are sleeved on the rotating shaft to fix the rotating shaft.

8. The non-contact broken rod detection structure according to claim 1, characterized in that: The detection sheet has a first working state and a second working state. In the first working state, the detection sheet is located in the sensing channel and the photoelectric switch generates a photoelectric signal. In the second working state, the detection sheet is located outside the sensing channel.

9. The non-contact broken rod detection structure according to claim 8, characterized in that: In the first working state, at least a portion of the detection sheet is located in the sensing channel.

10. The non-contact broken rod detection structure according to claim 1, characterized in that: The detection sheet has a first sensing section and a second sensing section that are symmetrical relative to the center of the rotation axis.

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