Weight and liquid level detection device for lead-acid battery production

Abstract

The invention discloses a weight and liquid level detection device for lead-acid battery production, and the device comprises a roller conveying line which is used for conveying lead-acid batteries; a lifting mechanism; the pressure sensor is arranged between the first lifting cylinder and the connecting plate and is used for detecting the weight of the lead-acid battery; a liquid level detection assembly; the device detects the weight and the liquid level at the same time, the detection time can be saved, the lead-acid battery is in a static state during liquid level detection, and the detection result is more accurate; the weight and liquid level detection devices are integrated, so that the occupied space is smaller, and the plant space can be saved.

Description

Technical Field

[0001] The invention belongs to the technical field of lead-acid battery detection, and in particular relates to a weight and liquid level detection device for lead-acid battery production. Background Art

[0002] A 12V lead-acid battery generally has six battery filling cells. During the production process, acid needs to be injected into the filling cells. The acid injected into each battery cell cannot exceed ±2mm of the standard height. Therefore, after the acid injection operation is completed, the liquid level needs to be tested, and the lead-acid battery after acid injection needs to be weight tested. Only after the test is qualified can it enter the subsequent process. The liquid level test includes testing the liquid level height and the consistency of the liquid level height in the six battery filling cells.

[0003] A Chinese utility model patent with publication number CN206019783U discloses a fully automatic probe-type battery liquid level detection device, including a detection system and a motion system that controls the detection system to move up and down. The detection system includes six acid detectors and a pole detector arranged on a detection system bracket. The bottom of the acid detector is provided with a vertically downward probe, and the lower end of the pole detector is provided with a pole detection head. The probes of the six acid detectors are respectively connected to the pole detection head of the pole detector, and the bottom ends of the probes of the six acid detectors are on the same horizontal plane.

[0004] This detection device can only detect the liquid level, but cannot simultaneously detect the liquid level and weight of the lead-acid battery after acid injection. Summary of the invention

[0005] The object of the present invention is to provide a weight and liquid level detection device for lead-acid battery production to solve at least one of the above-mentioned technical problems.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A weight and liquid level detection device for lead-acid battery production, comprising:

[0008] Roller conveyor line, used for conveying lead-acid batteries;

[0009] A lifting mechanism, comprising a bottom plate arranged below the roller conveyor line, a first lifting cylinder being installed on the bottom plate in a vertical direction, a piston rod of the first lifting cylinder being fixedly connected to a horizontally arranged connecting plate, a plurality of vertical supporting plates being arranged at intervals on the connecting plate, and the plurality of supporting plates being arranged one by one between two adjacent rollers of the roller conveyor line;

[0010] A pressure sensor, disposed between the first lifting cylinder and the connecting plate, for detecting the weight of the lead-acid battery;

[0011] The liquid level detection component includes a linear module arranged above the roller conveyor line and corresponding to the position of the connecting plate. The length direction of the linear module is consistent with the conveying direction of the roller conveyor line. A laser sensor for detecting the liquid level of the lead-acid battery is installed on the slide of the linear module.

[0012] The present invention is used for lifting lead-acid batteries through a lifting mechanism, wherein the bottom plate is used for installing the first lifting cylinder and the connecting plate, the first lifting cylinder is used for driving the connecting plate and the supporting plate to lift, the connecting plate is used for connecting multiple supporting plates, and is convenient for installation with the first lifting cylinder, and the multiple supporting plates are convenient for passing through between the rollers of the roller conveyor line, so as to achieve the purpose of lifting the lead-acid battery, so that the lead-acid battery is separated from the contact with the roller conveyor line, and the weight of the lead-acid battery is detected in conjunction with a pressure sensor; the liquid level detection assembly is used for liquid level detection, after the support plate lifts the lead-acid battery, the linear module carries the laser sensor to scan the lead-acid battery, and the distance from the laser sensor to the liquid level of the lead-acid battery is detected through the liquid injection hole of the lead-acid battery. Thus, the detection of the liquid level is realized, and the device performs weight and liquid level detection at the same time, which can save detection time. When the liquid level is detected, the lead-acid battery is in a static state, and the detection result is more accurate; the weight and liquid level detection devices are integrated, occupying less space, and can save plant space.

[0013] Furthermore, a cross arm is provided above the base plate in the horizontal direction, and both ends of the cross arm are connected to the base plate by a first telescopic rod, and a second lifting cylinder is provided on the base plate in the vertical direction, and a piston rod of the second lifting cylinder is fixed to the middle part of the cross arm, and a baffle is provided on the top surface of the cross arm in the vertical direction, and the baffle is located on one side of the connecting plate; the baffle is located at the gap between two adjacent rollers of the roller conveyor line, and the cross arm can be driven to rise and fall by the provided second lifting cylinder, and the provided first lifting and retracting rod is used to install the cross arm and limit the cross arm to only be able to lift and lower movements, and the provided cross arm is used to install the baffle, and the provided baffle is used to block the lead-acid battery, limit the position of the lead-acid battery, and facilitate the support plate to lift the lead-acid battery; the baffle that can be lifted and lowered can be lowered to the bottom of the roller conveyor line after the lead-acid battery stops moving, so that the lead-acid battery can be transported away by the roller conveyor line after the weight and liquid level detection is completed.

[0014] Furthermore, a movable plate is connected to one side of the baffle plate close to the connecting plate through no less than two second telescopic rods, a compression spring is provided between the movable plate and the baffle plate, the compression spring is arranged along the conveying direction of the roller conveyor line, one end of the compression spring is fixed to the movable plate, and the other end is fixed to the baffle plate; the movable plate is located at the same gap as the baffle plate; by providing the movable plate and cooperating with the compression spring, a buffer can be provided between the lead-acid battery and the baffle plate, so that the lead-acid battery can stop moving more smoothly, thereby reducing the amplitude of the lead-acid battery liquid level fluctuation, which can improve the accuracy of liquid level detection, or reduce the time for the lead-acid battery liquid level to return to calm, thereby improving the speed of liquid level detection.

[0015] Furthermore, a first rubber strip is provided at the top of the support plate, and the top of the first rubber strip is arched. Through the provision of the first rubber strip, the lead-acid battery is decelerated in advance before it hits the movable plate, so that the lead-acid battery decelerates more smoothly. The arched top of the first rubber strip can prevent the first rubber strip from directly supporting the lead-acid battery. When the arched top of the first rubber strip contacts the lead-acid battery, the lead-acid battery can press down the arched part. The first rubber strip will neither lift up the lead-acid battery nor provide a certain friction force to decelerate the lead-acid battery.

[0016] Furthermore, a plurality of speed reducers are arranged at intervals on the bottom plate, the speed reducers are located on a side of the connecting plate away from the cross arm, a second rubber strip is arranged on the top of the speed reducer, the second rubber strips are arranged one-to-one between two adjacent rollers of the roller conveyor line, and the top of the second rubber strip is arched; as the number of the first rubber strips or the second rubber strips contacted by the lead-acid battery at the same time increases, the friction force it is subjected to will also increase accordingly, and by providing the second rubber strip, the lead-acid battery will contact the second rubber strip before contacting the first rubber strip, so that the lead-acid battery will break away from the contact with the second rubber strip or the first rubber strip after contacting a new first rubber strip each time, so that when the lead-acid battery moves to the support plate, the friction force it is subjected to can remain stable, and the speed of the lead-acid battery can also decrease more smoothly, thereby reducing the liquid level fluctuation of the lead-acid battery.

[0017] Furthermore, a mounting plate is fixed to the piston rod of the first lifting cylinder, the pressure sensor is fixed to the top surface of the mounting plate, and the connecting plate is fixed to the top surface of the pressure sensor. The mounting plate is used to install the pressure sensor.

[0018] Furthermore, a plurality of guide columns are fixed on the base plate around the first lifting cylinder, and the plurality of guide columns pass through the connecting plate and are slidably connected to the connecting plate. The guide columns are used to guide the connecting plate, so that the connecting plate can be lifted and lowered more smoothly.

[0019] Furthermore, the movable plate is provided with a mounting slot hole, in which a roller is installed. The roller extends to a side of the movable plate close to the support plate. The provided roller can reduce the friction between the movable plate and the side surface of the lead-acid battery when the movable plate is raised or lowered, thereby protecting the lead-acid battery.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) The present invention uses a lifting mechanism to lift lead-acid batteries, wherein the bottom plate is used for installing the first lifting cylinder and the connecting plate, the first lifting cylinder is used to drive the connecting plate and the support plate to lift, and the connecting plate is used to connect multiple support plates to facilitate installation with the first lifting cylinder. The multiple support plates are convenient to pass through between the rollers of the roller conveyor line, thereby achieving the purpose of lifting the lead-acid battery, so that the lead-acid battery is separated from the contact with the roller conveyor line, and the weight of the lead-acid battery is detected in conjunction with a pressure sensor; the liquid level detection assembly is used for liquid level detection, and after the support plate lifts the lead-acid battery, the linear module carries the laser sensor to scan the lead-acid battery, and the distance from the laser sensor to the liquid level of the lead-acid battery is detected through the liquid injection hole of the lead-acid battery. Thus, the liquid level detection is realized. The device performs weight and liquid level detection at the same time, which can save detection time. During the liquid level detection, the lead-acid battery is in a static state, and the detection result is more accurate; the weight and liquid level detection devices are integrated, occupying less space, which can save factory space;

[0022] (2) The present invention provides a first rubber strip so that the lead-acid battery can be decelerated in advance before it hits the movable plate, so that the lead-acid battery can be decelerated more smoothly. The second rubber strip is provided so that the lead-acid battery can be in contact with the second rubber strip before it hits the first rubber strip, so that each time the lead-acid battery hits a new first rubber strip, it will be out of contact with the second rubber strip or the first rubber strip. When the lead-acid battery moves to the support plate, the friction force it is subjected to can be kept stable, and the speed of the lead-acid battery can be reduced more smoothly, thereby reducing the fluctuation amplitude of the liquid level of the lead-acid battery, which is beneficial to improving the effect of liquid level detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front view of a weight and liquid level detection device for lead-acid battery production in this embodiment;

[0024] Figure 2 is the position relationship diagram of the movable plate and the baffle;

[0025] In the figure: 1. roller conveyor line; 2. lead-acid battery; 3. lifting mechanism; 301. bottom plate; 302. first lifting cylinder; 303. connecting plate; 304. support plate; 4. pressure sensor; 5. liquid level detection component; 501. linear module; 502. laser sensor; 6. cross arm; 7. first telescopic rod; 8. second lifting cylinder; 9. baffle; 10. movable plate; 11. compression spring; 12. deceleration plate; 13. mounting plate; 14. guide column; 15. roller; 16. second telescopic rod. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figure 1 As shown, this embodiment provides a weight and liquid level detection device for lead-acid battery production, including a roller conveyor line 1, a lifting mechanism 3, a pressure sensor 4 and a liquid level detection component 5.

[0028] The roller conveyor line 1 is used for conveying lead-acid batteries 2 .

[0029] The lifting mechanism 3 includes a bottom plate 301 arranged below the roller conveyor line 1, and a first lifting cylinder 302 is installed on the bottom plate 301 in the vertical direction. The piston rod of the first lifting cylinder 302 is fixedly connected to a horizontally arranged connecting plate 303, and a plurality of vertical support plates 304 are arranged at intervals on the connecting plate 303, and the plurality of support plates 304 are arranged one by one between two adjacent rollers of the roller conveyor line 1; further, the piston rod of the first lifting cylinder 302 is fixed with a mounting plate 13, and the pressure sensor 4 is fixed on the top surface of the mounting plate 13, and the connecting plate 303 is fixed on the top surface of the pressure sensor 4, and the pressure sensor 4 is installed through the mounting plate 13; further, a plurality of guide columns 14 are fixed on the bottom plate 301 around the first lifting cylinder 302, and the plurality of guide columns 14 pass through the connecting plate 303 and are slidably connected to the connecting plate 303, and the connecting plate 303 is guided by the guide columns 14, so that the lifting and lowering of the connecting plate 303 is more stable.

[0030] The pressure sensor 4 is disposed between the first lifting cylinder 302 and the connecting plate 303 and is used for weight detection of the lead-acid battery 2 .

[0031] The liquid level detection component 5 includes a linear module 501 arranged above the roller conveyor line 1 and corresponding to the position of the connecting plate 303. The length direction of the linear module 501 is consistent with the conveying direction of the roller conveyor line 1. A laser sensor 502 for liquid level detection of the lead-acid battery 2 is installed on the slide of the linear module 501.

[0032] The present invention uses a lifting mechanism 3 to lift the lead-acid battery 2, wherein the bottom plate 301 is used for installing the first lifting cylinder 302 and the connecting plate 303, the first lifting cylinder 302 is used to drive the connecting plate 303 and the support plate 304 to lift and lower, the connecting plate 303 is used to connect multiple support plates 304, and is convenient for installation with the first lifting cylinder 302, and the multiple support plates 304 are convenient to pass through between the rollers of the roller conveyor line 1, so as to achieve the purpose of lifting the lead-acid battery 2, so that the lead-acid battery 2 is separated from the contact with the roller conveyor line 1, and cooperates with the pressure sensor 4 to detect the weight of the lead-acid battery 2; the liquid level detection component 5 is used for liquid level detection, after the support plate 304 lifts the lead-acid battery 2, the linear module 501 carries the laser sensor 502 to scan the lead-acid battery 2, and detects the distance from the laser sensor 502 to the liquid level of the lead-acid battery 2 through the injection hole of the lead-acid battery 2. Thereby, liquid level detection is realized. The device performs weight and liquid level detection at the same time, which can save detection time. When the liquid level is detected, the lead-acid battery 2 is in a static state, and the detection result is more accurate. The weight and liquid level detection devices are integrated, occupying less space, which can save factory space.

[0033] Furthermore, a horizontal arm 6 is provided above the bottom plate 301, and both ends of the horizontal arm 6 are connected to the bottom plate 301 through a first telescopic rod 7. A second lifting cylinder 8 is provided on the bottom plate 301 in a vertical direction, and a piston rod of the second lifting cylinder 8 is fixed to the middle of the horizontal arm 6. A baffle 9 is provided on the top surface of the horizontal arm 6 in a vertical direction, and the baffle 9 is located on one side of the connecting plate 303; the baffle 9 is located at the gap between two adjacent rollers of the roller conveyor line 1, and is provided by the first telescopic rod 7. The two lifting cylinders 8 can drive the cross arm 6 to rise and fall. The first lifting rod is used to install the cross arm 6 and limit the cross arm 6 to only be able to rise and fall. The cross arm 6 is used to install a baffle 9. The baffle 9 is used to block the lead-acid battery 2 and limit the position of the lead-acid battery 2, making it convenient for the support plate 304 to lift the lead-acid battery 2. The baffle 9 that can be lifted and lowered can drop to the bottom of the roller conveyor line 1 after the lead-acid battery 2 stops moving, making it convenient for the lead-acid battery 2 to be transported away by the roller conveyor line 1 after the weight and liquid level detection is completed.

[0034] When the device detects the weight and liquid level of the lead-acid battery 2, the lead-acid battery 2 in motion needs to be stopped at the support plate 304 and lifted up by the support plate 304. In the process of the lead-acid battery 2 changing from a moving state to a stationary state, if the lead-acid battery 2 suddenly stops moving, the speed changes too quickly in a short period of time. Under the action of inertia, the liquid in the lead-acid battery 2 will shake greatly, the liquid level will oscillate, and the liquid may splash out, which is not conducive to liquid level detection. To solve this problem, Figure 2 As shown, the side of the baffle 9 close to the connecting plate 303 is connected to a movable plate 10 through no less than two second telescopic rods 16, and a compression spring 11 is provided between the movable plate 10 and the baffle 9, and the compression spring 11 is arranged along the conveying direction of the roller conveyor line 1, one end of the compression spring 11 is fixed to the movable plate 10, and the other end is fixed to the baffle 9; the movable plate 10 is located at the same gap as the baffle 9; by setting the movable plate 10, in conjunction with the compression spring 11, a buffer can be provided between the lead-acid battery 2 and the baffle 9, so that the lead-acid battery 2 can stop moving more smoothly, thereby reducing the amplitude of the liquid level fluctuation of the lead-acid battery 2, and can improve the accuracy of liquid level detection, or reduce the time for the liquid level of the lead-acid battery 2 to return to calm, thereby improving the speed of liquid level detection; in the present invention, liquid level detection and liquid level detection both refer to liquid level height detection.

[0035] Furthermore, a first rubber strip is provided at the top of the support plate 304, and the top of the first rubber strip is arched. By providing the first rubber strip, the lead-acid battery 2 is decelerated in advance before it hits the movable plate 10, so that the lead-acid battery 2 decelerates more smoothly. The arched top of the first rubber strip can prevent the first rubber strip from directly supporting the lead-acid battery 2. When the arched top of the first rubber strip contacts the lead-acid battery 2, the lead-acid battery 2 can press down the arched part. The first rubber strip will not support the lead-acid battery 2, and can also provide a certain friction force to decelerate the lead-acid battery 2.

[0036] Furthermore, a plurality of deceleration plates 12 are arranged at intervals on the bottom plate 301, and the deceleration plates 12 are located on a side of the connecting plate 303 away from the cross arm 6. A second rubber strip is arranged on the top of the deceleration plate 12, and the second rubber strips are arranged one by one between two adjacent rollers of the roller conveyor line 1. The top of the second rubber strip is arched, which is used to decelerate the lead-acid battery 2; the height of the second rubber strip is slightly higher than the top height of the roller of the roller conveyor line 1. Since the lead-acid battery 2 is relatively heavy, the arched part of the second rubber strip can be pressed down, so that the lead-acid battery 2 can have a deceleration effect when passing through the second rubber strip. There will be no bumps; when the number of the first rubber strips or the second rubber strips that the lead-acid battery 2 contacts at the same time increases, the friction force it receives will also increase accordingly. By setting the second rubber strip, the lead-acid battery 2 will contact the second rubber strip before contacting the first rubber strip, and the number of the second rubber strips is not less than the number of the first rubber strips, so that the lead-acid battery 2 will break away from the contact with a second rubber strip or the first rubber strip after each contact with a new first rubber strip. The lead-acid battery 2 can receive the maximum deceleration effect it can receive before contacting the first rubber strip, and the lead-acid battery 2 will be released after contacting the second rubber strip. After the first rubber strip is applied, the deceleration effect can be kept stable, and the speed of the lead-acid battery 2 can be reduced more smoothly, thereby reducing the liquid level fluctuation of the lead-acid battery 2; when the lead-acid battery 2 is just placed on the roller conveyor line 1, the lead-acid battery 2 and the roller of the roller conveyor line 1 are in relative motion, and the roller drives the lead-acid battery 2 to move through the friction force on the lead-acid battery 2, and the movement speed of the lead-acid battery 2 gradually increases. When the speed of the lead-acid battery 2 is consistent with the rotation speed of the roller, the lead-acid battery 2 and the roller are relatively still, and the force on the lead-acid battery 2 is in a balanced state. When the lead-acid battery 2 encounters the second rubber strip, if the second rubber strip is applied, the lead-acid battery 2 will be in a relatively stable state. If the friction force exerted by the rubber strip on the lead-acid battery 2 can be greater than the friction force exerted by the roller on the lead-acid battery 2, the lead-acid battery 2 will be decelerated. Therefore, the maximum value that can be reached by the combined friction force exerted on the lead-acid battery 2 by the first rubber strip and the second rubber strip needs to exceed the maximum value of the friction force exerted by the roller on the lead-acid battery 2. When the lead-acid battery 2 is decelerated, a relative displacement occurs between the lead-acid battery 2 and the roller, and the friction force exerted by the roller on the lead-acid battery 2 remains stable. After the lead-acid battery 2 reaches the first rubber strip, the friction force exerted on the lead-acid battery 2 by the first rubber strip and the second rubber strip also remains stable. Therefore, the lead-acid battery 2 can be decelerated relatively stably.

[0037] Furthermore, a mounting slot is provided on the movable plate 10, and a roller 15 is installed in the mounting slot. The roller 15 extends to a side of the movable plate 10 close to the support plate 304. The roller 15 can reduce the friction between the movable plate 10 and the side of the lead-acid battery 2 when the movable plate 10 is raised or lowered, thereby protecting the lead-acid battery 2.

[0038] Working principle: The roller conveyor line 1 transports the lead-acid battery 2 to the support plate 304. Before the lead-acid battery 2 reaches the support plate 304, it is first decelerated by the second rubber strip. After reaching the support plate 304, one end of the lead-acid battery 2 begins to contact the first rubber strip. At this time, the friction force from the first rubber strip and the second rubber strip on the lead-acid battery 2 is stable, and the lead-acid battery 2 is steadily decelerated. Finally, it hits the movable plate 10 at a lower speed and is blocked by the movable plate 10. The movable plate 10 also provides a buffer for the lead-acid battery 2 to stop moving. After the lead-acid battery 2 stops moving, the first lifting cylinder 302 drives the support plate 304 to rise, lifts the lead-acid battery 2, and makes it out of contact with the roller conveyor line 1. The second lifting cylinder 8 drives the baffle 9 to descend, driving the movable plate 10 to descend, and the movable plate 10 is moved downward. The plate 10 moves from the top to the bottom of the rolling conveyor line and breaks away from the contact with the lead-acid battery 2. The pressure sensor 4 performs a weight detection on the lead-acid battery 2. The linear module 501 drives the laser sensor 502 to scan the lead-acid battery 2 to perform a liquid level detection. After the weight detection and the liquid level detection are completed, the first lifting cylinder 302 drives the support plate 304 to descend and put the lead-acid battery 2 on the roller conveyor line 1. At this time, the support plate 304 also moves to the bottom of the roller conveyor line 1 with the first rubber strip, and will not hinder the movement of the lead-acid battery 2. The lead-acid battery 2 is carried away by the roller conveyor line 1. After the lead-acid battery 2 that has been detected is transported away, the first rubber strip rises again to slow down the next lead-acid battery 2. At the same time, the movable plate 10 also rises to the top of the roller conveyor line 1 to block the next lead-acid battery 2.

[0039] It should be noted that although the present invention is disclosed as above by specific embodiments, the above embodiments are not intended to limit the present invention. Ordinary technicians in this field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A weight and liquid level detection device for lead-acid battery production, characterized in that: include: Roller conveyor line, used for conveying lead-acid batteries; A lifting mechanism, comprising a bottom plate arranged below the roller conveyor line, a first lifting cylinder being installed on the bottom plate in a vertical direction, a piston rod of the first lifting cylinder being fixedly connected to a horizontally arranged connecting plate, a plurality of vertical supporting plates being arranged at intervals on the connecting plate, and the plurality of supporting plates being arranged one by one between two adjacent rollers of the roller conveyor line; A pressure sensor, disposed between the first lifting cylinder and the connecting plate, for detecting the weight of the lead-acid battery; The liquid level detection component includes a linear module arranged above the roller conveyor line and corresponding to the position of the connecting plate. The length direction of the linear module is consistent with the conveying direction of the roller conveyor line. A laser sensor for detecting the liquid level of the lead-acid battery is installed on the slide of the linear module.

2. The lead-acid battery production weight and liquid level detection device according to claim 1, characterized in that: A cross arm is provided above the base plate in the horizontal direction, and both ends of the cross arm are connected to the base plate through a first telescopic rod. A second lifting cylinder is provided on the base plate in the vertical direction, and a piston rod of the second lifting cylinder is fixed to the middle part of the cross arm. A baffle is provided on the top surface of the cross arm in the vertical direction, and the baffle is located on one side of the connecting plate; the baffle is located at the gap between two adjacent rollers of the roller conveyor line.

3. The weight and liquid level detection device for lead-acid battery production according to claim 2, characterized in that: A side of the baffle plate close to the connecting plate is connected to a movable plate through no less than two second telescopic rods, a compression spring is arranged between the movable plate and the baffle plate; the movable plate is located at the same gap as the baffle plate.

4. The lead-acid battery production weight and liquid level detection device according to claim 1, characterized in that: A first rubber strip is disposed at the top of the support plate, and the top of the first rubber strip is arched.

5. The weight and liquid level detection device for lead-acid battery production according to claim 3, characterized in that: A plurality of speed reducers are arranged at intervals on the bottom plate, the speed reducers are located on a side of the connecting plate away from the cross arm, a second rubber strip is arranged on the top of the speed reducer, the second rubber strip is arranged one-to-one between two adjacent rollers of the roller conveyor line, and the top of the second rubber strip is arched.

6. The lead-acid battery production weight and liquid level detection device according to claim 1, characterized in that: A mounting plate is fixed to the piston rod of the first lifting cylinder, the pressure sensor is fixed to the top surface of the mounting plate, and the connecting plate is fixed to the top surface of the pressure sensor.

7. The lead-acid battery production weight and liquid level detection device according to claim 1, characterized in that: A plurality of guide posts are fixed on the bottom plate around the first lifting cylinder, and the plurality of guide posts pass through the connecting plate and are slidably connected to the connecting plate.

8. The weight and liquid level detection device for lead-acid battery production according to claim 3, characterized in that: The movable plate is provided with a mounting slot hole, a roller is installed in the mounting slot hole, and the roller extends to a side of the movable plate close to the support plate.

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