Online weighing unit of frame gluing machine

Abstract

The utility model discloses an online weighing unit of a frame gluing machine, which comprises a left substrate and a right substrate, at least two left weighing sensors are mounted on the left substrate, and at least two right weighing sensors corresponding to the left weighing sensors are mounted on the right substrate. A deformation sensing area is arranged between the two ends of each left weighing sensor and the two ends of each right weighing sensor and located on the outer side of the left substrate and the outer side of the right substrate, and the front side of each left weighing sensor and the front side of each right weighing sensor are each provided with a front check block. The rear side of each left weighing sensor and the rear side of each right weighing sensor are respectively provided with a rear stop block corresponding to the front stop block. According to the utility model, a plurality of workpieces can be weighed in real time at the same time, the contact area with the workpieces and the interference on the workpieces are small, and the two ends of each workpiece can be clamped and positioned synchronously through the push blocks which are close to each other in the opposite directions before weighing, so that the workpieces are positioned right above the weighing sensors; and the weighing precision and the weighing consistency of each workpiece are further improved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, and in particular to an online weighing unit for a frame glue applicator used in photovoltaic processing production lines. Background Technology

[0002] With increasing environmental awareness, solar power generation is developing rapidly. As an important component of solar power generation, photovoltaic power generation modules need to be installed around their edges. When installing the edges, glue must be applied to the edges first before installation.

[0003] In the existing technology, the amount of silicone in the frame of photovoltaic modules can only be measured manually by random sampling before and after applying the adhesive. This greatly increases the contact area with the workpiece and the amount of interference, and it is impossible to monitor the amount of silicone on each frame. This causes great inconvenience to the adhesive application process of photovoltaic module frames. In addition, the weighing position of the frame is inconsistent, resulting in poor weighing accuracy. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an online weighing unit for a frame glue applicator. This online weighing unit can simultaneously weigh multiple workpieces in real time and can clamp and position both ends of each workpiece before weighing, thereby improving the weighing accuracy and the consistency of weighing each workpiece.

[0005] To solve the above technical problems, the technical solution adopted by this utility model is: an online weighing unit for a frame gluing machine, comprising: a left base plate and a right base plate, wherein at least two left weighing sensors are installed on the left base plate, and at least two right weighing sensors corresponding to the left weighing sensors are installed on the right base plate, and each of the left weighing sensors and the corresponding right weighing sensor is used to weigh the same strip workpiece.

[0006] The other end of each of the left and right load cells, which are connected to the left and right base plates respectively, extends to the outside of the left and right base plates in the direction of the corresponding right and left load cells and is equipped with a pad. A deformation sensing area is provided between the two ends of each of the left and right load cells and located on the outside of the left and right base plates. The upper surface of the pad installed on the upper surface of the left and right load cells is used to overlap and contact the lower surface of the strip workpiece.

[0007] Each of the left and right load cells has a front stop block on its front side and a rear stop block corresponding to the front stop block on its rear side. Several front stops blocks that can move back and forth move synchronously, and several rear stops blocks that move in the opposite direction to the front stops move synchronously. When each of the front stops and the corresponding rear stops is in contact with the strip-shaped workpiece located between them, the two ends of the strip-shaped workpiece are respectively located directly above the corresponding left and right load cells.

[0008] The following are further improvements to the above technical solution:

[0009] 1. In the above scheme, there are four left and four right weighing sensors.

[0010] 2. In the above scheme, the distance between at least two sets of corresponding left and right weighing sensors is not the same.

[0011] 3. In the above scheme, each of the left substrate and the right substrate has a first movable plate that can move back and forth and a second movable plate that moves in the opposite direction to the first movable plate installed on its upper surface. At least two of the front blocks are installed on the same first movable plate, and at least two of the rear blocks are installed on the same second movable plate.

[0012] 4. In the above scheme, the first movable plate and the second movable plate, which are respectively mounted on the upper surfaces of the left base plate and the right base plate via slide rails and sliders, are stacked one above the other.

[0013] 5. In the above scheme, the lower surface of the second movable plate located above the first movable plate is higher than the upper surface of the weighing sensor and its upper surface is lower than the upper surface of the pad.

[0014] 6. In the above scheme, at least one of the front blocks is connected to the first movable plate by a connecting strip passing through the top of a self-weighing sensor.

[0015] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0016] The online weighing unit of this utility model frame glue applicator has at least two left weighing sensors mounted on its left base plate and at least two right weighing sensors corresponding to the left weighing sensors mounted on its right base plate. The other end of each of the left and right weighing sensors, connected at one end to the left and right base plates respectively, extends towards the corresponding right and left weighing sensors to the outside of the left and right base plates and is fitted with a pad. A front stop is provided on the front side of each left and right weighing sensor, and a rear stop corresponding to the front stop is provided on the rear side of each left and right weighing sensor. The system consists of several front stops that can move back and forth synchronously, and several rear stops that move in the opposite direction. When each of the front and rear stops is in contact with the strip-shaped workpiece located between them, the strip-shaped workpiece is positioned directly above the corresponding load cell. This allows for real-time weighing of multiple workpieces simultaneously with minimal contact area and interference. Furthermore, before weighing, opposing push blocks can be used to clamp and position both ends of each workpiece synchronously, ensuring that the workpiece is positioned directly above the load cell, further improving weighing accuracy and consistency for each workpiece. Attached Figure Description

[0017] Appendix Figure 1 This is a schematic diagram of the online weighing unit of the frame glue applicator of this utility model in use.

[0018] Appendix Figure 2 This is a partial structural diagram of the online weighing unit of the frame glue applicator of this utility model;

[0019] Appendix Figure 3 This is a schematic diagram of the online weighing unit of the frame glue applicator of this utility model in the centering state;

[0020] Appendix Figure 4 This utility model Figure 3 Enlarged diagram of point A in the middle.

[0021] In the above figures: 100, strip-shaped workpiece; 1, left base plate; 2, right base plate; 31, left load cell; 32, right load cell; 33, deformation sensing area; 4, pad block; 41, main body; 42, extension part; 5, first movable plate; 6, second movable plate; 7, front stop block; 71, connecting strip; 8, rear stop block. Detailed Implementation

[0022] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0023] Example 1: An online weighing unit for a frame gluing machine includes: a left base plate 1 and a right base plate 2. At least two left weighing sensors 31 are installed on the left base plate 1, and at least two right weighing sensors 32 corresponding to the left weighing sensors 31 are installed on the right base plate 2. Each left weighing sensor 31 and its corresponding right weighing sensor 32 are used to weigh the same strip workpiece 100.

[0024] The other ends of the left load cell 31 and the right load cell 32, which are connected to the left base plate 1 and the right base plate 2 respectively, extend to the outside of the left base plate 1 and the right base plate 2 in the direction of the corresponding right load cell 32 and left load cell 31 and are equipped with a pad 4. A deformation sensing area 33 is provided between the two ends of the left load cell 31 and the right load cell 32 and located on the outside of the left base plate 1 and the right base plate 2. The upper surface of the pad 4, which is installed on the upper surface of the left load cell 31 and the right load cell 32, is used to overlap and contact the lower surface of the strip workpiece 100.

[0025] Each of the left and right weighing sensors 31 and 32 is provided with a front stop 7 on its front side and a rear stop 8 corresponding to the front stop 7 on its rear side. Several front stop blocks 7 that can move back and forth move synchronously, and several rear stop blocks 8 that move in the opposite direction to the front stop blocks 7 move synchronously. When the front stop block 7 and the corresponding rear stop block 8 are each pressed into contact with the strip workpiece 100 located between them, the two ends of the strip workpiece 100 are respectively located directly above the corresponding left and right weighing sensors 31 and 32.

[0026] In use, each of the multiple strip workpieces to be weighed is first transported synchronously to the top of two corresponding symmetrically arranged weighing sensors, and the two ends of each strip workpiece are in contact with the pads on the two weighing sensors. At this time, the push blocks of each group of two corresponding push blocks are far apart from each other so as to put the workpiece into the clamping area.

[0027] The aforementioned left weighing sensor 31 and right weighing sensor 32 are each provided with 4 units; the distance between the aforementioned at least 2 sets of corresponding left weighing sensors 31 and right weighing sensors 32 is not the same.

[0028] Each of the left substrate 1 and the right substrate 2 has a first movable plate 5 that can move back and forth and a second movable plate 6 that moves in the opposite direction to the first movable plate 5 installed on its upper surface. At least two of the front stops 7 are installed on the same first movable plate 5, and at least two of the rear stops 8 are installed on the same second movable plate 6.

[0029] The first movable plate 5 and the second movable plate 6, which are respectively mounted on the upper surfaces of the left base plate 1 and the right base plate 2 via slide rails and sliders, are stacked one on top of the other.

[0030] The lower surface of the second movable plate 6, which is located above the first movable plate 5, is higher than the upper surface of the weighing sensor and its upper surface is lower than the upper surface of the pad 4; the pad 4 is an elastic pad.

[0031] At least one of the aforementioned front stops 7 is connected to the first movable plate 5 by a connecting strip 71 passing above a self-weighing sensor.

[0032] Example 2: An online weighing unit for a frame gluing machine includes: a left base plate 1 and a right base plate 2. At least two left weighing sensors 31 are installed on the left base plate 1, and at least two right weighing sensors 32 corresponding to the left weighing sensors 31 are installed on the right base plate 2. Each left weighing sensor 31 and its corresponding right weighing sensor 32 are used to weigh the same strip workpiece 100.

[0033] The other ends of the left load cell 31 and the right load cell 32, which are connected to the left base plate 1 and the right base plate 2 respectively, extend to the outside of the left base plate 1 and the right base plate 2 in the direction of the corresponding right load cell 32 and left load cell 31 and are equipped with a pad 4. A deformation sensing area 33 is provided between the two ends of the left load cell 31 and the right load cell 32 and located on the outside of the left base plate 1 and the right base plate 2. The upper surface of the pad 4, which is installed on the upper surface of the left load cell 31 and the right load cell 32, is used to overlap and contact the lower surface of the strip workpiece 100.

[0034] Each of the left and right weighing sensors 31 and 32 is provided with a front stop 7 on its front side and a rear stop 8 corresponding to the front stop 7 on its rear side. Several front stop blocks 7 that can move back and forth move synchronously, and several rear stop blocks 8 that move in the opposite direction to the front stop blocks 7 move synchronously. When the front stop block 7 and the corresponding rear stop block 8 are each pressed into contact with the strip workpiece 100 located between them, the two ends of the strip workpiece 100 are respectively located directly above the corresponding left and right weighing sensors 31 and 32.

[0035] The strip workpiece is released so that it is supported only by the pad block. Then, the two corresponding push blocks in each group are driven to move closer to each other until they contact the side surface of the workpiece. During this process, all the front stops move synchronously and all the rear stops move, thereby improving the consistency of workpiece positioning and avoiding workpiece offset in the length direction. Finally, both ends of each workpiece are pushed and adjusted to be directly above the weighing sensor to improve weighing accuracy. After that, the two corresponding push blocks in each group are driven to move away from each other to release the workpiece and avoid interference with the weighing.

[0036] The distances between the left weighing sensor 31 and the right weighing sensor 32, which are set in at least two sets as described above, are not the same.

[0037] Each of the left substrate 1 and the right substrate 2 has a first movable plate 5 that can move back and forth and a second movable plate 6 that moves in the opposite direction to the first movable plate 5 installed on its upper surface. At least two of the front stops 7 are installed on the same first movable plate 5, and at least two of the rear stops 8 are installed on the same second movable plate 6.

[0038] The first movable plate 5 and the second movable plate 6, which are respectively mounted on the upper surfaces of the left base plate 1 and the right base plate 2 via slide rails and sliders, are stacked one on top of the other.

[0039] The aforementioned load cell is a parallel beam type; the load cell deforms under pressure from the strip workpiece, and by sensing and calculating the deformation, the weight of the corresponding strip workpiece is finally obtained.

[0040] The aforementioned pad 4 includes a main body 41 connected to a weighing sensor and an extension 42 extending forward and backward from the upper part of the main body 41, respectively.

[0041] The working principle of this utility model is as follows:

[0042] In use, each of the multiple strip workpieces to be weighed is first transported synchronously to the top of two corresponding symmetrically arranged weighing sensors, and the two ends of each strip workpiece are in contact with the pads on the two weighing sensors. At this time, the two corresponding push blocks in each group are far apart from each other so as to put the workpiece into the clamping area.

[0043] The strip workpiece is released so that it is supported only by the pad block. Then, the two corresponding push blocks in each group are driven to move closer to each other until they contact the side surface of the workpiece. During this process, all the front blocks move synchronously and all the rear blocks move, thereby improving the consistency of workpiece positioning and avoiding workpiece offset in the length direction. Finally, both ends of each workpiece are pushed and adjusted to be directly above the weighing sensor to improve weighing accuracy. After that, the two corresponding push blocks in each group are driven to move away from each other to release the workpiece to avoid interference with weighing.

[0044] Two cylinders (not shown in the figure) drive the first movable plate and the second movable plate to move in opposite directions, thereby driving the corresponding front and rear stops to move closer or further apart.

[0045] The load cell deforms under pressure from the strip workpiece. By sensing and calculating the deformation, the weight of the corresponding strip workpiece is obtained. The load cell is purchased externally, and its working principle is existing technology, so it will not be described in detail here.

[0046] The online weighing unit of the aforementioned frame glue applicator can simultaneously weigh multiple workpieces in real time with minimal contact area and interference. Before weighing, the two ends of each workpiece can be clamped and positioned synchronously by push blocks that move closer together, so that the workpiece is directly above the weighing sensor, further improving the weighing accuracy and consistency of weighing each workpiece.

[0047] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. An online weighing unit for a frame glue applicator, comprising: The left base plate (1) and the right base plate (2) are characterized in that: at least two left weighing sensors (31) are installed on the left base plate (1), and at least two right weighing sensors (32) corresponding to the left weighing sensors (31) are installed on the right base plate (2). Each left weighing sensor (31) and the right weighing sensor (32) corresponding to it are used to weigh the same strip workpiece (100). The other end of each of the left load cell (31) and right load cell (32) connected to the left base plate (1) and right base plate (2) extends to the outside of the left base plate (1) and right base plate (2) respectively and is equipped with a pad (4). A deformation sensing area (33) is provided between the two ends of the left load cell (31) and right load cell (32) and located outside the left base plate (1) and right base plate (2). The upper surface of the pad (4) installed on the upper surface of the left load cell (31) and right load cell (32) is used to overlap and contact the lower surface of the strip workpiece (100). Each of the left weighing sensor (31) and the right weighing sensor (32) is provided with a front stop (7) on its front side, and each of the left weighing sensor (31) and the right weighing sensor (32) is provided with a rear stop (8) corresponding to the front stop (7) on its rear side. Several front stops (7) that can move back and forth move synchronously, and several rear stops (8) that move in the opposite direction to the front stops (7) move synchronously. When the front stops (7) and the corresponding rear stops (8) are each pressed into contact with the strip workpiece (100) located between them, the two ends of the strip workpiece (100) are respectively located directly above the corresponding left weighing sensor (31) and right weighing sensor (32).

2. The online weighing unit of the frame glue applicator according to claim 1, characterized in that: The left weighing sensor (31) and the right weighing sensor (32) are each provided with 4 units.

3. The online weighing unit of the frame glue applicator according to claim 1 or 2, characterized in that: The distance between at least two sets of corresponding left weighing sensors (31) and right weighing sensors (32) is not the same.

4. The online weighing unit of the frame glue applicator according to claim 1 or 2, characterized in that: The upper surfaces of the left substrate (1) and the right substrate (2) are each equipped with a first movable plate (5) that can move back and forth and a second movable plate (6) that moves in the opposite direction to the first movable plate (5). At least two of the front blocks (7) are installed on the same first movable plate (5), and at least two of the rear blocks (8) are installed on the same second movable plate (6).

5. The online weighing unit of the frame glue applicator according to claim 4, characterized in that: The first movable plate (5) and the second movable plate (6), which are mounted on the upper surfaces of the left base plate (1) and the right base plate (2) respectively via slide rails and sliders, are stacked one on top of the other.

6. The online weighing unit of the frame glue applicator according to claim 5, characterized in that: The lower surface of the second movable plate (6), which is located above the first movable plate (5), is higher than the upper surface of the weighing sensor and its upper surface is lower than the upper surface of the pad (4).

7. The online weighing unit of the frame glue applicator according to claim 5, characterized in that: At least one of the front stops (7) is connected to the first movable plate (5) by a connecting strip (71) passing above a self-weighing sensor.

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