Automatic weighing device for paper receiving table

Abstract

This utility model discloses an automatic weighing device for a paper receiving table, relating to the technical field of paper processing equipment. It includes a paper receiving table body, comprising a paper inlet end and a paper outlet end, with a lifting space provided between the paper inlet end and the paper outlet end. A weighing mechanism is installed within the lifting space, and a lifting mechanism controlling its vertical movement is connected above the weighing mechanism. This utility model's automatic weighing device for a paper receiving table has an automatic weighing function and can be integrated at the end of a production line to automate the paper processing from cutting to packaging.

Description

Technical Field

[0001] This utility model belongs to the technical field of paper processing equipment, specifically relating to an automatic weighing device for paper receiving tables. Background Technology

[0002] Paper cutters are used to cut paper to the required specifications. From traditional mechanical paper cutters to today's microcomputer-controlled ones, production preparation time is shorter, cutting accuracy is higher, labor intensity is lower, and operation is safer. Furthermore, with the development of the market economy, more and more investors need paper cutters that require little space, have low investment, quick returns, and are highly operable.

[0003] For large-scale paper processing and production, in order to improve production efficiency, modern production methods all adopt assembly line operations. Automated mechanical equipment is configured in each relevant department of the assembly line, which greatly reduces the labor intensity of workers.

[0004] The shortcomings of existing automated equipment and production lines for paper cutting and packaging are that: the production line is not equipped with weighing equipment at the end, and manual weighing is required after cutting before packaging, making it difficult to realize the automated process of paper from cutting to packaging.

[0005] Therefore, there is an urgent need to design a paper receiving station with automatic weighing function. Utility Model Content

[0006] The purpose of this invention is to provide an automatic weighing device for paper receiving tables, which solves the problem in the prior art that the production line is not equipped with weighing equipment at the end, making it difficult to realize the automated process of paper from cutting to packaging.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: An automatic weighing device for a paper receiving table includes a paper receiving table body, which includes a paper inlet end and a paper outlet end. A lifting space is provided between the paper inlet end and the paper outlet end. A weighing mechanism is provided within the lifting space. A lifting mechanism for controlling the up and down movement of the weighing mechanism is connected above the weighing mechanism.

[0008] As an alternative or supplement to the aforementioned automatic weighing device for the paper receiving table, the lifting mechanism includes two sets of opposing gear transmission mechanisms and four sets of chains. A rotating shaft connects the two sets of gear transmission mechanisms. The two sets of chains are wound around one set of gear transmission mechanisms, and the other two sets of chains are wound around the other set of gear transmission mechanisms. The two sets of gear transmission mechanisms achieve synchronous winding and unwinding of the four sets of chains through the rotating shaft.

[0009] As an alternative or supplement to the above-mentioned automatic weighing device for the paper receiving table, the weighing mechanism includes a paper placement plate and a weighing sensor. The paper placement plate is fixed to the weighing sensor by a nut and transmits the pressure on the paper placement plate to the weighing sensor.

[0010] As an alternative or supplement to the aforementioned automatic weighing device for the paper receiving table, the paper placement plate is a rectangular plate with through holes at its four corners.

[0011] As an alternative or supplement to the aforementioned automatic weighing device for the paper receiving table, four weighing sensors are provided. The lower end of each weighing sensor is provided with an abutment platform. The four through holes pass through the upper ends of the four weighing sensors respectively and are fixed to the abutment platform by the nuts.

[0012] As an alternative or supplement to the aforementioned automatic weighing device for the paper receiving table, the nut includes an upper nut and a lower nut, with the upper nut located above the paper placement plate and the lower nut located between the contact platform and the paper placement plate.

[0013] As an alternative or supplement to the aforementioned automatic weighing device for the paper receiving table, a chain fixing component is provided at the upper end of the weighing sensor, and the movable end of the chain is connected to the chain fixing component.

[0014] As an alternative or supplement to the above-mentioned automatic weighing device for the paper receiving table, two weighing sensors are provided with fixing plates. One end of the fixing plate is provided with a sliding sleeve, which is slidably connected to the paper receiving table body. The other end of the fixing plate is fixed to the corresponding weighing sensor.

[0015] As an alternative or supplement to the aforementioned automatic weighing device for the paper receiving table, the fixing plate is provided with a mounting hole, which passes through the upper end of the weighing sensor and is fixed between the upper nut and the paper placement plate.

[0016] Compared with the prior art, the present invention has the following advantages: The automatic weighing device of the paper receiving table of the present invention has an automatic weighing function, can be integrated at the end of the production line, and realizes the automated process of paper from cutting to packaging. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the automatic weighing device for the paper receiving table of this utility model; Figure 2 Figure 1 Enlarged view of point A in the middle.

[0018] In the diagram: 100, Paper receiving platform body; 101, Paper inlet end; 102, Paper outlet end; 200, Lifting space; 301, Gear transmission mechanism; 302, Chain; 303, Chain 1; 304, Chain 2; 305, Chain 3; 306, Chain 4; 401, Paper placement plate; 402, Weighing sensor; 403, Abutment platform; 404, Upper nut; 405, Lower nut; 5, Rotating shaft; 6, Chain fixing component; 7, Fixing plate; 701, Mounting hole; 8, Sliding sleeve; 9, Sliding rod. Detailed Implementation

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0020] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0021] In the description of this utility model, it should be understood that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model.

[0022] Example like Figures 1-2 As shown, the automatic weighing device for the paper receiving table provided in this embodiment is integrated at the end of the paper production line and is used to weigh the cut paper. The weighed paper is then sent to the next process for packaging.

[0023] Specifically, it includes a paper receiving platform body 100, which includes a paper inlet end 101 and a paper outlet end 102. The cut paper is fed into the paper receiving platform body 100 from the paper inlet end 101, weighed by a weighing mechanism, and then sent out from the paper outlet end 102 to enter the next process for packaging.

[0024] A lifting space 200 is provided between the paper inlet 101 and the paper outlet 102. A weighing mechanism is provided within the lifting space 200, and a lifting mechanism for controlling its up-and-down movement is connected above the weighing mechanism. The weighing mechanism is used to weigh the fed paper, and the lifting mechanism is used to raise and lower the weighing mechanism. The lifting mechanism is designed to control the up-and-down position of the weighing mechanism within the lifting space 200 to prevent the paper to be weighed from accumulating on the weighing mechanism and blocking the paper inlet 101, thus hindering the paper feeding. On the other hand, the paper inlet 101 is located at the top of the lifting space 200, and the paper outlet 102 is located at the bottom of the lifting space, allowing the lifting mechanism to transport the paper from the paper inlet 101 to the paper outlet 102.

[0025] In one embodiment, the weighing mechanism includes a paper placement plate 401 and weighing sensors 402. The paper placement plate 401 is a rectangular plate with through holes at its four corners. Four weighing sensors 402 are provided, all with identical structures. Each sensor has a contact platform 403 at its lower end. The four through holes pass through the upper ends of the four weighing sensors 402 and are fixed to the contact platforms 403 by nuts, transmitting the pressure on the paper placement plate 401 to the weighing sensors 402. The paper placement plate 401 is larger than the paper and is used to hold the fed paper. The sum of the weights measured by the four weighing sensors 402 is the weight of the paper above the paper placement plate 401. It should be noted that the initial weight measured by the weighing sensors 402 includes the weight of the paper placement plate 401 and the nuts; the initial weight measured by the weighing sensors 402 needs to be excluded when calculating the paper weight.

[0026] Furthermore, the nut includes an upper nut 404 and a lower nut 405. The upper nut 404 is located above the paper placement plate 401, and the lower nut 405 is located between the abutment platform 403 and the paper placement plate 401. The outer periphery of the weighing sensor 402 is provided with external threads. The paper placement plate 401 is fixed on the weighing sensor 402 by the cooperation of the external threads with the upper nut 404 and the lower nut 405, so as to prevent the paper placement plate 401 from shaking on the weighing sensor 402, resulting in inaccurate weighing data.

[0027] In one embodiment, two weighing sensors 402 are provided with fixing plates 7. One end of the fixing plate 7 is provided with a sliding sleeve 8, which is slidably connected to the paper receiving table body 100. The other end of the fixing plate 7 is fixed to the corresponding weighing sensor 402. Specifically, the fixing plate 7 is provided with a mounting hole 701, which passes through the upper end of the weighing sensor 402 and is fixed between the upper nut 404 and the paper placement plate 401. The paper receiving table body 100 is provided with a sliding rod 9, and the sliding sleeve 8 is sleeved on the sliding rod 9. The fixing plate 7 provides a certain degree of stability to the weighing mechanism, avoiding violent shaking that could lead to inaccurate weighing data. The sliding sleeve 8 and the sliding rod 9 allow the weighing mechanism to move up and down along the sliding rod within the lifting space 200.

[0028] In one embodiment, the lifting mechanism includes two sets of opposing gear transmission mechanisms 301 and four sets of chains 302. A rotating shaft 5 connects the two sets of gear transmission mechanisms 301. The two sets of chains 302 are wound around one set of gear transmission mechanisms 301, and the other two sets of chains 302 are wound around the other set of gear transmission mechanisms 301. The two sets of gear transmission mechanisms 301 achieve synchronous winding and unwinding of the four sets of chains 302 through the rotating shaft 5. Specifically, the four sets of chains 302 are chain one 303, chain two 304, chain three 305, and chain four 306. Chain one 303 and chain two 304 are wound around one set of gear transmission mechanisms, and chain three 305 and chain four 306 are wound around the other set of gear transmission mechanisms 301. The two sets of gear transmission mechanisms 301 achieve synchronous rotation through the rotating shaft 5, and the four sets of chains 302 are synchronously wound and unwound, so that the paper placement plate 401 always remains horizontal.

[0029] In one embodiment, a chain fixing member 6 is provided at the upper end of the weighing sensor 402, and the movable end of the chain 302 is connected to the chain fixing member 6; the chain fixing member 6 is provided to avoid direct connection between the chain 302 and the weighing sensor 402, which would affect the weighing accuracy.

[0030] It should be noted that this utility model also includes an operation panel. The weighing sensor 402 is electrically connected to the operation panel, and the operation panel can set the weighing weight and display the weighing data.

[0031] Working principle: Before weighing begins, the weighing weight is set. When paper feeding begins, the weighing mechanism is located at the top of the lifting space 200. The paper is placed on the weighing mechanism and weighed in real time. As the paper continues to be fed in, the lifting mechanism controls the carrying mechanism to slowly move from the top of the lifting space 200 to the bottom of the lifting space 200, leaving space for the paper inlet 101 to prevent the paper accumulating on the weighing mechanism from blocking the paper inlet 101 and hindering the paper feeding. When the real-time weighing data is equal to the system set weighing weight, the paper accumulated on the paper placement plate 401 is sent to the next process for packaging.

[0032] The automatic weighing device for the paper receiving table of this utility model has an automatic weighing function and can be integrated at the end of the production line to realize the automated process of paper from cutting to packaging.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An automatic weighing device for a paper receiving table, comprising a paper receiving table body (100), characterized in that, The paper receiving table body (100) includes a paper inlet end (101) and a paper outlet end (102). A lifting space (200) is provided between the paper inlet end (101) and the paper outlet end (102). A weighing mechanism is provided in the lifting space (200). A lifting mechanism for controlling the up and down movement of the weighing mechanism is connected above the weighing mechanism.

2. The automatic weighing device for the paper receiving table according to claim 1, characterized in that, The lifting mechanism includes two sets of opposing gear transmission mechanisms (301) and four sets of chains (302). A rotating shaft (5) connects the two sets of gear transmission mechanisms (301). Two sets of chains (302) are wound around one set of gear transmission mechanisms (301), and the other two sets of chains (302) are wound around the other set of gear transmission mechanisms (301). The two sets of gear transmission mechanisms (301) realize the synchronous winding and unwinding of the four sets of chains (302) through the rotating shaft (5).

3. The automatic weighing device for the paper receiving table according to claim 2, characterized in that, The weighing mechanism includes a paper placement plate (401) and a weighing sensor (402). The paper placement plate (401) is fixed to the weighing sensor (402) by a nut and transmits the pressure on the paper placement plate (401) to the weighing sensor (402).

4. The automatic weighing device for the paper receiving table according to claim 3, characterized in that, The paper placement plate (401) is a rectangular plate, and through holes are provided at the four corners of the paper placement plate (401).

5. The automatic weighing device for the paper receiving table according to claim 4, characterized in that, Four load cells (402) are provided. The lower end of each load cell (402) is provided with an abutment platform (403). The four through holes pass through the upper ends of the four load cells (402) respectively and are fixed to the abutment platform (403) by the nuts.

6. The automatic weighing device for the paper receiving table according to claim 5, characterized in that, The nut includes an upper nut (404) and a lower nut (405). The upper nut (404) is located above the paper placement plate (401), and the lower nut (405) is located between the abutment platform (403) and the paper placement plate (401).

7. The automatic weighing device for the paper receiving table according to claim 3, characterized in that, The upper end of the weighing sensor (402) is provided with a chain fixing member (6), and the movable end of the chain (302) is connected to the chain fixing member (6).

8. The automatic weighing device for the paper receiving table according to claim 6, characterized in that, At least two of the weighing sensors (402) are provided with fixing plates (7), one end of the fixing plate (7) is provided with a sliding sleeve (8), the sliding sleeve is slidably connected to the paper receiving table body (100), and the other end of the fixing plate (7) is fixed to the corresponding weighing sensor (402).

9. The automatic weighing device for the paper receiving table according to claim 8, characterized in that, The fixing plate (7) is provided with a mounting hole (701), which passes through the upper end of the weighing sensor (402) and is fixed between the upper nut (404) and the paper placement plate (401).

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