Stepping type multi-column static checkweigher

Abstract

The utility model discloses a stepping type multi-column static checkweigher which comprises a rack, the top of the rack is sequentially provided with a weighing mechanism, a conveyor and a discharging mechanism, the conveyor is used for conveying unqualified products to a designated position, and the discharging mechanism is used for placing the unqualified products into the conveyor; the weighing mechanism comprises a left side plate and a right side plate which are fixedly arranged on the machine frame, a sliding groove installation frame, a sliding way installation plate and a sensor installation plate are sequentially connected between the left side plate and the right side plate, a feeding sliding groove is formed in the sliding groove installation frame, and a front end sliding way is arranged on the sliding way installation plate. According to the stepping type multi-column static checkweigher of the utility model, the weighing mechanism, the conveyor, the blanking mechanism and the dial needle group are cooperatively arranged, so that the weighing platform and the weighing sensor are positioned in the middle of the moving track of the dial needle, and the distance between the weighing platform and the weighing sensor can be very close, and static weighing can be realized, and therefore, high-precision measurement can be realized; and no electrostatic interference is generated.

Description

Technical Field

[0001] The utility model relates to the technical field of checkweighers, in particular to a step-by-step multi-column static checkweigher. Background Art

[0002] The existing multi-column checkweigher is composed of a material transfer mechanism and a weighing mechanism. The material transfer mechanism of this multi-column scale is completed by a group of synchronous belt levers (2 synchronous wheels, 1 synchronous belt with a shifting needle) for each column, and the moving trajectory of the shifting needle is in the middle of the weighing platform and the weighing sensor. This causes the weighing platform to be too high, which will affect the weighing accuracy. The static electricity generated by the friction of the synchronous belt will also interfere with the accuracy of the weighing sensor; assembly and maintenance are also relatively complicated.

[0003] Based on the above situation, the utility model proposes a step-by-step multi-column static checkweigher, which can effectively solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a step-by-step multi-column static checkweigher. The utility model has a simple structure and is easy to use. Through the coordinated arrangement of the weighing mechanism, the conveyor, the unloading mechanism and the needle-shifting group, the weighing platform and the weighing sensor are located in the middle of the needle-shifting moving track. The weighing platform and the weighing sensor can be very close to each other, and static weighing can be performed, thereby achieving high-precision measurement without generating electrostatic interference.

[0005] The utility model is realized by the following technical solutions:

[0006] A step-by-step multi-column static checkweigher, comprising a frame, a weighing mechanism, a conveyor and a material discharge mechanism are sequentially arranged on the top of the frame, the conveyor is used to transport unqualified products to a designated position, and the material discharge mechanism is used to put unqualified products into the conveyor;

[0007] The weighing mechanism includes a left side plate and a right side plate fixed on the frame, a slide mounting frame, a slide mounting plate and a sensor mounting plate are connected in sequence between the left side plate and the right side plate, the slide mounting frame is provided with a feeding slide, the slide mounting plate is provided with a front end slide, the sensor mounting plate is provided with a weighing sensor, the weighing sensor is provided with a weighing platform, a pin shifting assembly is installed between the left side plate and the right side plate, and the pin shifting assembly is used to shift the product on the front end slide into the weighing platform and the unloading mechanism in sequence.

[0008] The utility model has a simple structure and is easy to use. Through the coordinated arrangement of the weighing mechanism, the conveyor, the unloading mechanism and the needle shifting group, the weighing platform and the weighing sensor are located in the middle of the moving track of the needle shifting group. The distance between the weighing platform and the weighing sensor can be very close, and static weighing can be performed, thereby realizing high-precision measurement without generating electrostatic interference.

[0009] Preferably, the needle shifting assembly includes a driving bearing mounting plate and a driven bearing mounting plate, the two driving bearing mounting plates are respectively arranged on the left plate and the right plate, the two driven bearing mounting plates are respectively arranged on the left plate and the right plate, the driving bearing mounting plate is rotatably connected to the first synchronous wheel, the driven bearing mounting plate is rotatably connected to the second synchronous wheel, the first synchronous wheel and the second synchronous wheel on the same side are connected through a first synchronous belt transmission, a needle shifting driving shaft is connected between the two first synchronous wheels, a needle shifting driven shaft is connected between the two second synchronous wheels, the needle shifting driving shaft extends to the outside of the left plate and is fixedly connected to the driving roller synchronous wheel, a motor is provided on the frame, a third synchronous wheel is connected to the motor, the third synchronous wheel is connected to the driving roller synchronous wheel through a second synchronous belt transmission, a plurality of cross bars are equidistantly provided between the two first synchronous belts, and a needle shifting shaft is provided on the cross bar.

[0010] Preferably, a avoidance hole is provided on the front end slideway corresponding to the shifting pin.

[0011] Preferably, a synchronous belt support plate is provided on the slideway mounting plate.

[0012] Preferably, the unloading mechanism includes a slide rail and a cylinder fixed on the frame, the slide rail is slidably connected to a support plate, a rear end slideway is obliquely provided on the support plate, and a push rod of the cylinder is fixedly connected to the support plate.

[0013] Preferably, a material discharge bottom plate is connected between the left plate and the right plate on a side away from the slide groove mounting frame, and a plurality of material discharge ports are provided on the material discharge bottom plate.

[0014] Preferably, a control box is provided at the bottom of the frame, and the control box is used to control the weighing mechanism, the conveyor, and the unloading mechanism.

[0015] Preferably, a touch screen is provided on the frame, and the touch screen is electrically connected to the control box.

[0016] Preferably, the control box is slidably connected to the frame via a guide rail.

[0017] Preferably, a photoelectric mounting board is provided on the left side plate, and a photoelectric sensor is provided on the photoelectric mounting board.

[0018] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0019] 1. Whether it is a 6-column or 10-column checkweigher, only two belts or chains are needed to move the product, which has a simple structure and low cost.

[0020] 2. The synchronous belt is located on the left and right sides of the weighing part, and it is also convenient to disassemble and replace the sensor;

[0021] 3. The weighing platform and the weighing sensor are located in the middle of the needle moving track. The distance between the weighing platform and the weighing sensor can be very close, and static weighing can be achieved, thereby achieving high-precision measurement without generating static interference;

[0022] 4. When the needle rotates up from the bottom, it will not clamp the product and it is easier to move the product;

[0023] 5. The synchronous belt is located on the left and right sides of the weighing part. By reducing the distance between the dial pins, the center distance between each row of checkweighers can be made very small, which can be connected to various small packaging machines;

[0024] 6. The control box is connected to the bottom of the frame by sliding on a guide rail, making the entire machine smaller and simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model;

[0026] Figure 2 It is a structural schematic diagram of another state of the utility model;

[0027] Figure 3 It is a structural schematic diagram of another perspective of the utility model;

[0028] Figure 4 for Figure 3 A schematic diagram of the local enlarged structure at point A in the middle;

[0029] Figure 5 It is a partial structural schematic diagram of the weighing mechanism of the utility model;

[0030] Figure 6 It is a partial structural schematic diagram of the weighing mechanism of the utility model from another perspective;

[0031] Figure 7 It is a schematic cross-sectional structure diagram of the weighing mechanism of the utility model;

[0032] Figure 8 It is a structural schematic diagram of the needle shifting assembly of the utility model. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments. However, it should be understood that the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationship described in the drawings is only used for illustrative purposes and cannot be understood as a limitation on this patent.

[0034] Embodiment 1:

[0035] like Figures 1 to 8 As shown, the utility model provides a step-by-step multi-column static checkweigher, comprising a frame 1, a weighing mechanism 2, a conveyor 3 and a material discharge mechanism 4 are sequentially arranged on the top of the frame 1, the conveyor 3 is used to transport unqualified products to a designated position, and the material discharge mechanism 4 is used to put unqualified products into the conveyor 3;

[0036] The weighing mechanism 2 includes a left side plate 21 and a right side plate 22 fixed on the frame 1, and a slide mounting frame 23, a slide mounting plate 24 and a sensor mounting plate 25 are connected in sequence between the left side plate 21 and the right side plate 22. The slide mounting frame 23 is provided with a feeding slide 231, the slide mounting plate 24 is provided with a front end slide 241, the sensor mounting plate 25 is provided with a weighing sensor 251, and the weighing sensor 251 is provided with a weighing platform 26. A needle shifting assembly 27 is installed between the left side plate 21 and the right side plate 22, and the needle shifting assembly 27 is used to shift the products on the front end slide 241 into the weighing platform 26 and the unloading mechanism 4 in sequence.

[0037] Embodiment 2:

[0038] like Figures 1 to 8 As shown, the utility model provides a step-by-step multi-column static checkweigher, comprising a frame 1, a weighing mechanism 2, a conveyor 3 and a material discharge mechanism 4 are sequentially arranged on the top of the frame 1, the conveyor 3 is used to transport unqualified products to a designated position, and the material discharge mechanism 4 is used to put unqualified products into the conveyor 3;

[0039] The weighing mechanism 2 includes a left side plate 21 and a right side plate 22 fixed on the frame 1, and a slide mounting frame 23, a slide mounting plate 24 and a sensor mounting plate 25 are connected in sequence between the left side plate 21 and the right side plate 22. The slide mounting frame 23 is provided with a feeding slide 231, the slide mounting plate 24 is provided with a front end slide 241, the sensor mounting plate 25 is provided with a weighing sensor 251, and the weighing sensor 251 is provided with a weighing platform 26. A needle shifting assembly 27 is installed between the left side plate 21 and the right side plate 22, and the needle shifting assembly 27 is used to shift the products on the front end slide 241 into the weighing platform 26 and the unloading mechanism 4 in sequence.

[0040] The needle shifting assembly 27 includes a driving bearing mounting plate 271 and a driven bearing mounting plate 272. The two driving bearing mounting plates 271 are respectively arranged on the left plate 21 and the right plate 22. The two driven bearing mounting plates 272 are respectively arranged on the left plate 21 and the right plate 22. The driving bearing mounting plate 271 is rotatably connected to a first synchronous wheel 273, and the driven bearing mounting plate 272 is rotatably connected to a second synchronous wheel 274. The first synchronous wheel 273 and the second synchronous wheel 274 on the same side are connected by a first synchronous belt 275. The two first synchronous wheels 273 and 274 are connected by a first synchronous belt 275. A needle-setting drive shaft 276 is connected between the step wheels 273, a needle-setting driven shaft 277 is connected between the two second synchronous wheels 274, the needle-setting drive shaft 276 extends to the outside of the left side plate 21 and is fixedly connected to the driving roller synchronous wheel 278, a motor 279 is provided on the frame 1, a third synchronous wheel 280 is connected to the motor 279, the third synchronous wheel 280 and the driving roller synchronous wheel 278 are connected through a second synchronous belt 281, and a plurality of cross bars 282 are equidistantly provided between the two first synchronous belts 275, and a needle-setting 283 is provided on the cross bar 282.

[0041] The motor 279 drives the third synchronous wheel 280 to rotate, and the third synchronous wheel 280 drives the driving roller synchronous wheel 278 to rotate through the second synchronous belt 281, and the driving roller synchronous wheel 278 drives the needle driving shaft 276 to rotate, and the needle driving shaft 276 drives the needle driven shaft 277 to rotate, thereby realizing the periodic movement of the needle 283.

[0042] Furthermore, in another embodiment, a avoidance hole 2411 is provided on the front slideway 241 corresponding to the setting pin 283 .

[0043] The avoidance hole 2411 allows the pin 283 to smoothly push the product to slide on the front slide 241 without worrying about the pin 283 hitting the front slide 241. At the same time, thinner products can also be pushed well.

[0044] Furthermore, in another embodiment, a synchronous belt support plate 242 is provided on the slideway mounting plate 24 .

[0045] The synchronous belt support plate 242 can support the first synchronous belt 275 and ensure the high stability of the setting needle 283.

[0046] Furthermore, in another embodiment, the unloading mechanism 4 includes a slide rail 41 and a cylinder 42 fixed on the frame 1, the slide rail 41 is slidably connected to a support plate 43, a rear end slideway 44 is obliquely provided on the support plate 43, and the push rod of the cylinder 42 is fixedly connected to the support plate 43.

[0047] When encountering unqualified products, the rear end slide 44 will be raised when starting, so that the product will slide directly from the weighing mechanism 2 onto the conveyor 3 and then be transported to the designated position by the conveyor 3.

[0048] Furthermore, in another embodiment, a material discharge bottom plate is connected between the left side plate 21 and the right side plate 22 at a side away from the slide groove mounting frame 23 , and a plurality of material discharge ports 211 are provided on the material discharge bottom plate.

[0049] The discharge port 211 is provided to facilitate the product to slide smoothly into the discharge mechanism 4 .

[0050] Furthermore, in another embodiment, a control box 5 is provided at the bottom of the frame 1 , and the control box 5 is used to control the weighing mechanism 2 , the conveyor 3 , and the unloading mechanism 4 .

[0051] Furthermore, in another embodiment, a touch screen 6 is provided on the frame 1 , and the touch screen 6 is electrically connected to the control box 5 .

[0052] The touch screen 6 is provided to facilitate the staff to control the equipment.

[0053] Furthermore, in another embodiment, the control box 5 is slidably connected to the frame 1 via a guide rail.

[0054] The control box 5 is slidably connected to the bottom of the frame 1 through a guide rail, making the entire machine smaller and simpler.

[0055] Furthermore, in another embodiment, a photoelectric mounting board 212 is provided on the left side plate 21 , and a photoelectric sensor 213 is provided on the photoelectric mounting board 212 .

[0056] The photoelectric sensor 213 is fixed on the left side plate 21 through the photoelectric mounting plate 212. The photoelectric sensor 213 illuminates a marker on the needle assembly 27 to facilitate determining the position of the needle 283, confirming that the needle 283 does not interfere with the product during weighing, and determining the start and end times of a weighing cycle.

[0057] The working principle of one embodiment of the utility model is as follows:

[0058] A step-by-step multi-column static checkweigher. The product slides from the loading chute 231 to the front slide 241. The motor 279 drives the needle assembly 27 to move the product from the front slide 241 to the weighing platform 26 for static weighing. After the weighing is completed, if the weight is qualified, the product will be moved by the needle assembly 27 to the rear slide 44 to the next workstation. If the weight is unqualified, the cylinder 42 will lift the rear slide 44 and the product will flow to the conveyor 3.

[0059] According to the description and drawings of the present invention, those skilled in the art can easily manufacture or use the step-by-step multi-column static checkweigher of the present invention, and can produce the positive effects recorded in the present invention.

[0060] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationships are based on the orientation or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in conjunction with the drawings and according to specific circumstances.

[0061] Unless otherwise specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A step-by-step multi-column static checkweigher, characterized in that: It includes a frame, on the top of which a weighing mechanism, a conveyor and a material discharge mechanism are sequentially arranged, wherein the conveyor is used to transport unqualified products to a designated position, and the material discharge mechanism is used to put unqualified products into the conveyor; The weighing mechanism includes a left side plate and a right side plate fixed on the frame, a slide mounting frame, a slide mounting plate and a sensor mounting plate are connected in sequence between the left side plate and the right side plate, the slide mounting frame is provided with a feeding slide, the slide mounting plate is provided with a front end slide, the sensor mounting plate is provided with a weighing sensor, the weighing sensor is provided with a weighing platform, a pin shifting assembly is installed between the left side plate and the right side plate, and the pin shifting assembly is used to shift the product on the front end slide into the weighing platform and the unloading mechanism in sequence.

2. The step-by-step multi-column static checkweigher according to claim 1, characterized in that: The needle shifting assembly comprises a driving bearing mounting plate and a driven bearing mounting plate, the two driving bearing mounting plates are respectively arranged on the left plate and the right plate, the two driven bearing mounting plates are respectively arranged on the left plate and the right plate, the driving bearing mounting plate is rotatably connected with a first synchronous wheel, the driven bearing mounting plate is rotatably connected with a second synchronous wheel, the first synchronous wheel and the second synchronous wheel on the same side are connected through a first synchronous belt transmission, a needle shifting driving shaft is connected between the two first synchronous wheels, a needle shifting driven shaft is connected between the two second synchronous wheels, the needle shifting driving shaft extends to the outside of the left plate and is fixedly connected to the driving roller synchronous wheel, a motor is provided on the frame, a third synchronous wheel is connected to the motor, the third synchronous wheel is connected to the driving roller synchronous wheel through a second synchronous belt transmission, a plurality of cross bars are equidistantly arranged between the two first synchronous belts, and a needle shifting shaft is provided on the cross bar.

3. The step-by-step multi-column static checkweigher according to claim 2, characterized in that: The front end slideway is provided with an avoidance hole corresponding to the setting pin.

4. The step-by-step multi-column static checkweigher according to claim 2, characterized in that: A synchronous belt support plate is arranged on the slideway mounting plate.

5. The step-by-step multi-column static checkweigher according to claim 1, characterized in that: The unloading mechanism comprises a slide rail and a cylinder fixed on a frame, a support plate is slidably connected to the slide rail, a rear end slideway is obliquely provided on the support plate, and a push rod of the cylinder is fixedly connected to the support plate.

6. The step-by-step multi-column static checkweigher according to claim 1, characterized in that: A material discharge bottom plate is connected between the left side plate and the right side plate on a side away from the slide groove mounting frame, and a plurality of material discharge ports are arranged on the material discharge bottom plate.

7. The step-by-step multi-column static checkweigher according to claim 1, characterized in that: A control box is provided at the bottom of the frame, and the control box is used to control the weighing mechanism, the conveyor, and the unloading mechanism.

8. The step-by-step multi-column static checkweigher according to claim 7, characterized in that: The frame is provided with a touch screen, and the touch screen is electrically connected to the control box.

9. The step-by-step multi-column static checkweigher according to claim 7, characterized in that: The control box is slidably connected to the frame via a guide rail.

10. The step-by-step multi-column static checkweigher according to claim 1, characterized in that: The left side plate is provided with a photoelectric mounting board, and the photoelectric mounting board is provided with a photoelectric sensor.

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