Weighing device for automatic production

Abstract

The utility model relates to the technical field of automatic production equipment, in particular to a weighing device for automatic production, which comprises a bearing assembly, the bearing assembly comprises a stand column, a discharging plate is slidably mounted on the stand column through a sliding sleeve, a weighing assembly is arranged below the discharging plate, and discharging assemblies are arranged on the left side and the right side of the bearing assembly. According to the utility model, the weighing assembly is arranged, the adjusting oil cylinder, the adjusting plate and the verification spring are used for supporting the weighing plate, and the pressure sensor is used for detecting the pressure of the discharging plate so as to detect the weight of materials; the checking spring can be compressed along with the increase of the materials, a contact switch is arranged and matched with a guide rod to judge whether the discharging plate is flush with the material pushing frame or not, and a material pushing oil cylinder is used for pushing the material pushing plate to achieve automatic discharging; the height of the adjusting plate is controlled by the adjusting oil cylinder, and the compression amount of the checking spring can be changed, so that the elastic force of the checking spring when the guide rod is in contact with the contact switch is changed, and the weighing of materials with different weights is adapted.

Description

Technical Field

[0001] The utility model relates to the technical field of automated production equipment, in particular to a weighing device for automated production. Background Art

[0002] In the automated production of paper products, it is necessary to weigh the finished products in order to determine the number of papers by weighing. Since the gram weight of the paper is determined, the number of papers can be obtained by weighing the flat weight and dividing it by the gram weight. This can determine whether the number of papers in the package is qualified.

[0003] In the prior art, a conveyor belt weighing device is usually used. A weighing assembly is set under the conveyor belt. The conveyor belt is used to drive the material forward, and the weighing is completed during the forward movement. However, the material needs to be stacked before weighing, and then the stacked material is transported to the weighing device. After weighing, it needs to be diverted. The unqualified material needs to be returned to add or reduce the amount of material. This is quite troublesome and not conducive to automated production. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a weighing device for automated production.

[0005] The technical solution of the utility model is:

[0006] A weighing device for automated production, comprising:

[0007] A supporting assembly, the supporting assembly comprises a column, a material discharge plate is slidably mounted on the column through a sliding sleeve, the material discharge plate is used to carry the materials produced from the production line, a weighing assembly is arranged below the material discharge plate, and material discharge assemblies are arranged on the left and right sides of the supporting assembly;

[0008] The weighing assembly includes a weighing plate, a pressure sensor is provided between the weighing plate and the discharge plate, the pressure sensor is used to detect the pressure caused by the discharge plate on the weighing plate, an adjustment plate is connected to the weighing plate through a check spring, an adjustment cylinder is provided under the adjustment plate, the adjustment cylinder is used to support the adjustment plate, the check spring is used to support the weighing plate, and when the adjustment cylinder is working, it can drive the adjustment plate to move in the vertical direction;

[0009] The material unloading assembly includes a material pushing assembly and a transportation assembly. The material pushing assembly is used to push the material on the material unloading plate to the transportation assembly, and the transportation assembly is used to transport the material to the next production step.

[0010] Preferably, a base is provided at the bottom of the column, a top plate is provided at the top of the column, and an upper limit ring is threadedly installed on the column and above the sliding sleeve.

[0011] Preferably, a plurality of guide rods are evenly and vertically installed below the weighing plate, the guide rods penetrate the adjustment plate, and the adjustment plate and the guide rods can slide relative to each other.

[0012] Preferably, the verification spring is sleeved on the guide rod, and the end faces of the verification spring are respectively against the weighing plate and the adjustment plate.

[0013] Preferably, a contact switch is provided just below the bottom end of the guide rod, and a signal can be generated when the top end of the contact switch is squeezed.

[0014] Preferably, the pushing assembly includes a pushing rack, when the bottom end of the guide rod contacts the top end of the contact switch, the top surface of the discharge plate is flush with the top surface of the pushing rack, the pushing rack is provided with a pushing cylinder, and the top end of the piston rod of the pushing cylinder is provided with a pushing plate.

[0015] Preferably, the transport component comprises a discharge rack, the top surface of the discharge rack is provided with a discharge conveyor belt, and the top surface of the discharge conveyor belt is flush with the top surface of the push rack.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model sets a weighing assembly, uses an adjusting oil cylinder, an adjusting plate and a checking spring to support the weighing plate, uses a pressure sensor to detect the pressure of a discharge plate and thus detects the weight of the material; the checking spring will be compressed as the material increases, and by setting a contact switch and cooperating with a guide rod, it can be determined whether the discharge plate is flush with a push rack, and automatic material unloading can be achieved by pushing the push plate with a pushing oil cylinder; the height of the adjusting plate is controlled by the adjusting oil cylinder, so that the compression amount of the checking spring can be changed, thereby changing the elastic force of the checking spring when the guide rod contacts the contact switch, thereby adapting to the weighing of materials of different weights. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the supporting assembly in the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the load-bearing components in the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the feeding component in the utility model.

[0022] The meaning of each number in the figure is:

[0023] 1. Support assembly; 11. Base; 12. Column; 13. Top plate; 14. Unloading plate; 15. Sliding sleeve; 16. Upper limit ring;

[0024] 2. Weighing assembly; 21. Weighing plate; 22. Pressure sensor; 23. Guide rod; 24. Adjustment plate; 25. Verification spring; 26. Contact switch; 27. Adjustment cylinder;

[0025] 3. Unloading assembly; 31. Pushing rack; 32. Pushing cylinder; 33. Pushing plate; 34. Discharging rack; 35. Discharging conveyor belt. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] Embodiment 1:

[0029] See also Figure 1-4 The utility model describes the above technical solution in detail through the following embodiments:

[0030] A weighing device for automated production, comprising:

[0031] The supporting assembly 1 includes a column 12, on which a discharge plate 14 is slidably mounted via a sliding sleeve 15. The discharge plate 14 is used to carry materials produced from the production line. A weighing assembly 2 is provided below the discharge plate 14, and a discharge assembly 3 is provided on the left and right sides of the supporting assembly 1.

[0032] The sliding sleeve 15 is fixedly connected with the material discharge plate 14 by screws. The front side of the material discharge plate 14 abuts against the conveyor belt of the production line to receive the materials produced from the production line.

[0033] A base 11 is fixedly mounted on the bottom of the column 12 by bolts, a top plate 13 is fixedly mounted on the top of the column 12 by bolts, and an upper limit ring 16 is threadedly mounted on the column 12 and above the sliding sleeve 15 .

[0034] The base 11 is used to bear the weight of the device, and the top plate 13 is used to fix the top of the column 12 to prevent the column 12 from tilting.

[0035] Since the upper limit ring 16 is threadedly connected to the column 12 , rotating the upper limit ring 16 can change the position of the upper limit ring 16 on the column 12 , thereby limiting the height of the sliding sleeve 15 and further limiting the height of the discharge plate 14 .

[0036] It should be ensured that when the sliding sleeve 15 contacts the upper limit ring 16, the top surface of the unloading plate 14 is lower than the top surface of the conveyor belt on the production line.

[0037] The weighing assembly 2 includes a weighing plate 21, and a pressure sensor 22 is provided between the weighing plate 21 and the discharge plate 14. The pressure sensor 22 is used to detect the pressure caused by the discharge plate 14 on the weighing plate 21. An adjusting plate 24 is connected to the bottom of the weighing plate 21 through a verification spring 25. An adjusting cylinder 27 is provided under the adjusting plate 24. The adjusting cylinder 27 is used to support the adjusting plate 24. The verification spring 25 is used to support the weighing plate 21. When the adjusting cylinder 27 is working, it can drive the adjusting plate 24 to move in the vertical direction.

[0038] The pressure sensor 22 can be a piezoelectric sensor, and the pressure sensor 22 is fixedly mounted on the top surface of the weighing plate 21 by screws. Under the elastic force of the calibration spring 25, the top surface of the pressure sensor 22 is against the bottom surface of the discharge plate 14.

[0039] When materials are placed on the discharge plate 14 , pressure is generated, thereby changing the value detected by the pressure sensor 22 . The change in the value is the pressure exerted on the discharge plate 14 by the weight of the materials.

[0040] At the same time, when the discharge plate 14 bears the weight of the material, the check spring 25 will be compressed downward through the weighing plate 21.

[0041] Five guide rods 23 are evenly and vertically welded and installed below the weighing plate 21 . The guide rods 23 penetrate the adjustment plate 24 . The adjustment plate 24 and the guide rods 23 can slide relative to each other.

[0042] The guide rod 23 is used to limit the sliding direction of the weighing plate 21 to prevent the weighing plate 21 from tipping over.

[0043] The verification spring 25 is sleeved on the guide rod 23, and the end faces of the verification spring 25 are respectively against the weighing plate 21 and the adjusting plate 24.

[0044] The check spring 25 is sleeved on the guide rod 23 to prevent the check spring 25 from bending outward when deformed, thereby affecting the supporting performance. The elastic force of the check spring 25 directly acts on the weighing plate 21 and the adjusting plate 24.

[0045] A contact switch 26 is provided just below the bottom end of the guide rod 23, and a signal can be generated when the top end of the contact switch 26 is squeezed.

[0046] The contact switch 26 is fixedly mounted on the top surface of the base 11 by screws. Under the premise that the position of the upper limit ring 16 remains unchanged, the maximum height of the discharge plate 14 and the weighing plate 21 remains unchanged, so that the maximum distance from the bottom end of the guide rod 23 to the contact switch 26 remains unchanged, and then the moving distance of the discharge plate 14 and the weighing plate 21 remains unchanged.

[0047] By controlling the adjustment cylinder 27 to work, the height of the adjustment plate 24 can be changed, thereby changing the pre-compression amount of the verification spring 25.

[0048] According to Hooke's law, the deformation of the spring is proportional to the elastic force of the spring. Therefore, changing the pre-shrinkage of the verification spring 25 can change the initial elastic force of the verification spring 25.

[0049] Since the moving distance of the discharge plate 14 and the weighing plate 21 remains unchanged, the stroke of the compression of the check spring 25 remains unchanged. Therefore, by changing the pre-shrinkage of the check spring 25, the elastic force of the two ends of the check spring 25 on the weighing plate 21 and the adjustment plate 24 can be changed when the guide rod 23 and the contact switch 26 are against each other. Thus, the weight of the material required to move the bottom end of the guide rod 23 to the contact switch 26 can be changed. In turn, the amount of material that the device can weigh is changed.

[0050] At the same time, when the positions of the upper limit ring 16 and the adjustment plate 24 remain unchanged, the pressure required from the bottom end of the guide rod 23 to the contact switch 26 remains unchanged, so that the weight of the material on the discharge plate 14 remains the same.

[0051] Under the premise that the positions of the upper limit ring 16 and the adjustment plate 24 remain unchanged, by comparing the data of the pressure sensor 22 each time the bottom end of the guide rod 23 reaches the contact switch 26, the detection data of the pressure sensor 22 can be verified to avoid weighing errors caused by damage to the pressure sensor 22.

[0052] The material unloading assembly 3 includes a material pushing assembly and a transport assembly. The material pushing assembly is used to push the material on the material unloading plate 14 to the transport assembly, and the transport assembly is used to transport the material to the next production step. The material pushing assembly includes a material pushing frame 31. When the bottom end of the guide rod 23 contacts the top end of the contact switch 26, the top surface of the material unloading plate 14 is flush with the top surface of the material pushing frame 31. A material pushing cylinder 32 is fixedly installed on the material pushing frame 31 by bolts, and a material pushing plate 33 is threadedly installed on the top end of the piston rod of the material pushing cylinder 32.

[0053] The push rack 31 is located on the left side of the supporting assembly 1. When the bottom end of the guide rod 23 contacts the top end of the contact switch 26, the contact switch 26 generates a signal. At this time, the push cylinder 32 works and drives the push plate 33 to move toward the discharge plate 14, thereby pushing the material on the discharge plate 14 out.

[0054] The transport assembly includes a discharge rack 34 , on the top surface of which a discharge conveyor belt 35 is fixed by bolts, and the top surface of the discharge conveyor belt 35 is flush with the top surface of the push rack 31 .

[0055] The discharge conveyor belt 35 can be a known rubber conveyor belt. The discharge conveyor belt 35 is located on the right side of the support assembly 1. Since the top surface of the discharge conveyor belt 35 is flush with the top surface of the pusher frame 31. Therefore, when the push cylinder 32 drives the push plate 33 to move toward the discharge plate 14, thereby pushing out the material on the discharge plate 14, the material will slide to the discharge conveyor belt 35. The discharge conveyor belt 35 can drive the material away from the support assembly 1 and then transport the material to the next production step. At the same time, the piston rod of the push cylinder 32 contracts, driving the push plate 33 to leave the discharge plate 14 and return to its original position. The discharge plate 14 slides upward under the elastic force of the verification spring 25 until the sliding sleeve 15 contacts the upper limit ring 16.

[0056] When the operator of this embodiment uses the device, he rotates the upper limit ring 16 to change the position of the upper limit ring 16 on the column 12, thereby limiting the height of the sliding sleeve 15, and further limiting the height of the unloading plate 14. It is ensured that when the sliding sleeve 15 contacts the upper limit ring 16, the top surface of the unloading plate 14 is lower than the top surface of the conveyor belt on the production line.

[0057] The materials output from the production line can fall onto the unloading plate 14 .

[0058] When materials are placed on the discharge plate 14 , pressure is generated, thereby changing the value detected by the pressure sensor 22 . The change in the value is the pressure exerted on the discharge plate 14 by the weight of the materials.

[0059] At the same time, when the unloading plate 14 bears the weight of the material, the check spring 25 will be compressed downwards through the weighing plate 21. And the guide rod 23 will move downwards following the weighing plate 21.

[0060] When the bottom end of the guide rod 23 contacts the top end of the contact switch 26, the top surface of the discharge plate 14 is flush with the top surface of the push rack 31. According to Hooke's law, the deformation of the spring is proportional to the elastic force of the spring. When the upper limit ring 16 and the adjustment plate 24 remain in position, the pressure required from the bottom end of the guide rod 23 to the contact switch 26 remains unchanged, so that the weight of the material on the discharge plate 14 is the same.

[0061] By comparing the data of the pressure sensor 22 each time the bottom end of the guide rod 23 reaches the contact switch 26 , the detection data of the pressure sensor 22 can be verified to avoid weighing errors caused by damage to the pressure sensor 22 .

[0062] When the bottom end of the guide rod 23 contacts the top end of the contact switch 26 , the contact switch 26 generates a signal, and the pushing cylinder 32 works to drive the pushing plate 33 to move toward the discharge plate 14 , thereby pushing the material on the discharge plate 14 out.

[0063] The pushed out material will contact the discharge conveyor belt 35. Driven by the discharge conveyor belt 35, the material moves away from the supporting assembly 1 and is then transported to the next production step by the discharge conveyor belt 35.

[0064] Then the piston rod of the push cylinder 32 contracts, driving the push plate 33 to leave the discharge plate 14 and return to its original position. The discharge plate 14 slides upward under the elastic force of the check spring 25 until the sliding sleeve 15 contacts the upper limit ring 16. The next weighing can be carried out.

[0065] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A weighing device for automated production, characterized in that: include: A support assembly (1), the support assembly (1) comprising a column (12), a material discharge plate (14) being slidably mounted on the column (12) via a sliding sleeve (15), the material discharge plate (14) being used to carry materials produced from a production line, a weighing assembly (2) being arranged below the material discharge plate (14), and material discharge assemblies (3) being arranged on the left and right sides of the support assembly (1); The weighing assembly (2) comprises a weighing plate (21), a pressure sensor (22) is provided between the weighing plate (21) and the discharge plate (14), the pressure sensor (22) is used to detect the pressure exerted by the discharge plate (14) on the weighing plate (21), an adjusting plate (24) is connected below the weighing plate (21) via a checking spring (25), an adjusting oil cylinder (27) is provided below the adjusting plate (24), the adjusting oil cylinder (27) is used to support the adjusting plate (24), the checking spring (25) is used to support the weighing plate (21), and when the adjusting oil cylinder (27) is in operation, it can drive the adjusting plate (24) to move in a vertical direction; The material unloading component (3) comprises a material pushing component and a transport component, wherein the material pushing component is used to push the material on the unloading plate (14) to the transport component, and the transport component is used to transport the material to the next production step.

2. A weighing device for automated production as claimed in claim 1, characterized in that: A base (11) is provided at the bottom of the column (12), a top plate (13) is provided at the top of the column (12), and an upper limit ring (16) is threadedly mounted on the column (12) and located above the sliding sleeve (15).

3. The weighing device for automated production according to claim 1, characterized in that: A plurality of guide rods (23) are evenly and vertically installed below the weighing plate (21); the guide rods (23) penetrate the adjustment plate (24); and the adjustment plate (24) and the guide rods (23) are capable of relative sliding.

4. A weighing device for automated production as claimed in claim 3, characterized in that: The verification spring (25) is sleeved on the guide rod (23), and the end faces of the verification spring (25) are respectively against the weighing plate (21) and the adjusting plate (24).

5. A weighing device for automated production as claimed in claim 4, characterized in that: A contact switch (26) is provided directly below the bottom end of the guide rod (23), and a signal can be generated when the top end of the contact switch (26) is squeezed.

6. A weighing device for automated production as claimed in claim 5, characterized in that: The pusher assembly comprises a pusher frame (31). When the bottom end of the guide rod (23) contacts the top end of the contact switch (26), the top surface of the discharge plate (14) is flush with the top surface of the pusher frame (31). The pusher frame (31) is provided with a pusher cylinder (32). The top end of the piston rod of the pusher cylinder (32) is provided with a pusher plate (33).

7. A weighing device for automated production as claimed in claim 6, characterized in that: The transport component comprises a discharge rack (34), the top surface of which is provided with a discharge conveyor belt (35), and the top surface of the discharge conveyor belt (35) is flush with the top surface of the push rack (31).

Images