Weight measuring and sorting device for production line

Abstract

The utility model relates to a weight measuring and sorting device for a production line. The weight measuring and sorting device comprises a clamping mechanism, a weight detecting mechanism, a sorting bin mechanism and a controller. And the controller is electrically connected with the clamping mechanism, the weight detection mechanism and the sorting bin mechanism. According to the utility model, the weight of a product on a production line is accurately measured by adopting an independent integrated design, and pressure sensors with different measuring ranges can be selected according to actual application requirements; the clamping mechanism adopts a highly-integrated modular design, the positions of the sensors can be changed according to actual application requirements, and then the number of stations and the distance between the stations are changed so that the clamping mechanism can be used for conveying belts of different sizes.

Description

TECHNICAL FIELD

[0001] The utility model relates to a weight measuring and sorting device, in particular to a weight measuring and sorting device for production line. BACKGROUND

[0002] At present, weight sorting devices are used on production lines, mainly for automatically detecting and separating components or products that do not meet the standard weight. This device measures the actual weight of each product accurately and compares it with the preset standard weight to quickly identify products that are too light or too heavy. This ensures the consistency of product quality, reduces the cost and time of manual inspection, improves the efficiency and reliability of the production line, and also helps to reduce waste and improve customer satisfaction.

[0003] However, the weight detection components on the market generally use independent weighing sensors combined with conveyor belts for non-stationary detection during material conveying. However, due to the inertia generated when the conveyor belt moves, it may cause "material jumping" or "liquid shaking" inside the material, which affects the detection accuracy due to factors such as conveying speed and material characteristics, adversely affecting high-precision weighing detection, and thus the sorted products do not meet the requirements, increasing product loss.

[0004] Therefore, there is an urgent need to design a device that can accurately detect weight and sort on a production line. SUMMARY

[0005] Therefore, the purpose of the utility model is to overcome the defects or deficiencies of the prior art and provide a weight measuring and sorting device for production line.

[0006] A weight measuring and sorting device for production line, comprising a clamping mechanism, a weight detection mechanism, a sorting bin mechanism and a controller; the controller is electrically connected with the clamping mechanism, the weight detection mechanism and the sorting bin mechanism;

[0007] The clamping mechanism comprises a first support, a stepping motor, a transmission module, a moving block, a single-shaft air cylinder and a clamping unit arranged on the first support;

[0008] The transmission module comprises a pulley transmission unit and a ball screw transmission unit, the stepping motor is connected with the pulley transmission unit, the pulley transmission unit is connected with the ball screw transmission unit, the moving block is connected with the ball screw transmission unit, and the moving block can move along a horizontal direction under the drive of the ball screw transmission unit;

[0009] The single-shaft air cylinder is horizontally fixed on the moving block, and its extension direction is perpendicular to the moving direction of the moving block;

[0010] The clamping unit comprises a cylinder mounting plate, a double-shaft cylinder, a pneumatic finger and a clamping plate; one side of the cylinder mounting plate is connected with the single-shaft cylinder, and the other side of the cylinder mounting plate is fixedly connected with the double-shaft cylinder; the extending direction of the double-shaft cylinder is perpendicular to the extending direction of the single-shaft cylinder and the moving direction of the moving block; one end of the pneumatic finger is connected with the double-shaft cylinder, and the other end of the pneumatic finger is connected with the clamping plate.

[0011] The weight detection mechanism comprises a second support, a pressure sensor arranged on the second support, and a detection table arranged on the pressure sensor.

[0012] The sorting bin is provided with a feeding port.

[0013] Compared with the prior art, the weight measuring and sorting device for the production line adopts independent integrated design, and different range pressure sensors can be selected according to actual application requirements, so that the weight of the product on the production line can be accurately measured.

[0014] In an embodiment, the moving block comprises a cover plate and a protruding block, the protruding block is fixedly arranged below the cover plate, the protruding block is connected with the ball screw transmission unit, and both sides of the end of the protruding block connected with the cover plate are respectively provided with through grooves.

[0015] In an embodiment, the moving block further comprises an L-shaped block, which comprises a long-side block and a short-side block, the long-side block is fixedly arranged above the cover plate and extends out of the cover plate by a certain distance in a direction perpendicular to the through grooves, and the short-side block is vertically arranged on the side of the long-side block facing the cover plate and extends compared with the cover plate.

[0016] In an embodiment, the first support comprises two first vertical supports arranged in parallel, a horizontal support fixedly connected with the upper sides of the two first vertical supports, and a hollow mounting shell fixedly connected with the upper side of the horizontal support; the hollow mounting shell is fixedly arranged outside the ball screw transmission unit, and the ball screw transmission unit is fixedly connected with the horizontal support through the hollow mounting shell; the upper top surface of the hollow mounting shell is provided with a hollow window, the length of the hollow window is the same as that of the ball screw transmission unit, and the width of the hollow window is the same as the distance between the two through grooves of the moving block; the side surface of the hollow mounting shell perpendicular to the upper top surface is provided with a mounting long groove along the side plate.

[0017] In an embodiment, the weight detection mechanism further comprises a transmitter fixedly arranged on the third support and electrically connected with the pressure sensor.

[0018] In an embodiment, a linear guide rail module is further included; the linear guide rail module includes a first connecting plate, a second connecting plate, a linear guide rail, a sliding block and a limiting block, wherein the connecting plate is fixedly arranged between the moving block and the single-axis cylinder, the linear guide rail is fixedly arranged on the first connecting plate and is parallel to the single-axis cylinder, and the sliding block is sleeved on the linear guide rail; the second connecting plate is fixedly connected with the sliding block, and the second connecting plate is also fixedly connected with the cylinder mounting plate; and the limiting block is arranged at both ends of the linear guide rail.

[0019] In an embodiment, a floating joint is further included, which is fixedly arranged between the double-axis cylinder and the cylinder mounting plate.

[0020] In an embodiment, a sensor module is further included, which includes a first sensor, a second sensor and a third sensor arranged in the mounting long groove; wherein the first sensor is arranged at the first limit of the moving block, the second sensor is arranged at the second limit of the moving block, and the third sensor is arranged at the motion origin of the moving block.

[0021] In an embodiment, a terminal table fixedly arranged on the first vertical support and a drag chain fixedly arranged on the transverse support are further included.

[0022] In an embodiment, the controller is electrically connected with the stepping motor, the single-axis cylinder, the double-axis cylinder, the sensor module, the transmitter and the pressure sensor.

[0023] In order to better understand and implement, the following will be described in detail in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A distribution diagram of various mechanisms involved in the embodiments of the present application is shown.

[0025] Figure 2 A structure diagram of a clamping mechanism involved in the embodiments of the present application is shown.

[0026] Figure 3 A top view structure diagram of a clamping mechanism involved in the embodiments of the present application is shown.

[0027] Figure 4 A structure diagram of a moving block involved in the embodiments of the present application is shown.

[0028] Figure 5 A structure diagram of a weight detection mechanism and a sorting bin mechanism involved in the embodiments of the present application is shown. DETAILED DESCRIPTION

[0029] The scheme of the present application will be described in detail in conjunction with the accompanying drawings.

[0030] As Figure 1As shown, the utility model discloses a kind of weighing and sorting devices for production line, including clamping mechanism 100, weight detection mechanism 200, sorting bin mechanism 300 and controller 400 (not shown in figure).

[0031] As Figures 2-3 Shown, clamping mechanism 100 includes first support 110, step motor 120, transmission module 130, moving block 140, single-shaft cylinder 150, clamping unit 160.

[0032] First support 110 includes two first vertical supports 111 being arranged in parallel, and a lateral support 112 is fixedly connected to the upper side of the two first vertical supports 111, and a hollow mounting shell 113 is fixedly connected to the upper side of the lateral support 112.

[0033] Transmission module 130 is used for converting rotary motion into linear motion, which includes a belt pulley transmission unit 131 (not shown in figure) and a ball screw transmission unit 132 (not shown in figure); wherein the belt pulley transmission unit 131 includes a synchronous driving wheel 1311, a synchronous driven wheel 1312 and a synchronous belt 1313, the ball screw transmission unit 132 includes a lead screw 1321, bearings 1322 and bearing seats 1323, balls 1324 and nuts 1325 which are sleeved on the lead screw 1321 through the balls 1324; the synchronous belt 1313 is wound between the synchronous driving wheel 1311 and the synchronous driven wheel 1312, the synchronous driving wheel 1311 is connected with the step motor 120, and the synchronous driven wheel 1312 is connected with the lead screw 1321.

[0034] Under the driving action of the step motor 120, the synchronous driving wheel 1311 is rotated, the synchronous belt 1313 drives the synchronous driven wheel 1312 to rotate, and then drives the lead screw 1321 to rotate, and the nut 1325 moves linearly along the lead screw 1321 under the action of the balls 1324.

[0035] The hollow mounting shell 113 is fixedly arranged outside the ball screw transmission unit 132, and the bearing seat 1323 in the ball screw transmission unit 132 is fixedly connected with the hollow mounting shell 113; the upper top surface of the hollow mounting shell 113 is provided with a rectangular hollow window 1131 (not shown in figure), the length of the hollow window 1131 is the same as the length of the nut 1325 which can move along the lead screw, and the width of the hollow window 1131 is the same as the width of the moving block 140; the side surface of the hollow mounting shell 113 which is perpendicular to the upper top surface is provided with a mounting long groove 1132 along the side plate.

[0036] The moving block 140 is fixedly connected with the nut 1325 in the ball screw transmission unit 132, so that the moving block 140 can move in a horizontal direction under the driving of the ball screw transmission unit 132.

[0037] As shown in Figure 4 Specifically, the moving block 140 includes an L-shaped block 141, a cover plate 142, and a protruding block 143. The protruding block 143 is fixedly arranged below the cover plate 142 and is fixedly connected with the nut 1325 in the ball screw driving unit 132. The two sides of the end of the protruding block 143 connected with the cover plate 142 are respectively provided with through grooves 144. The L-shaped block 141 includes a long-side block 1411 and a short-side block 1412. The long-side block 1411 is fixedly arranged above the cover plate 142 and extends out of the cover plate 142 by a certain distance in a direction perpendicular to the through grooves 144. The short-side block 1412 is arranged vertically on the side of the long-side block 1411 facing the cover plate 142 and extends relative to the cover plate 142.

[0038] The single-axis cylinder 150 is a pen-type cylinder and is horizontally fixed on the moving block 140. The extending direction of the single-axis cylinder 150 is perpendicular to the moving direction of the moving block 140.

[0039] The clamping unit 160 includes a cylinder mounting plate 161, a double-axis cylinder 162, a pneumatic finger 163, and a clamping plate 164. One side of the cylinder mounting plate 161 is connected with the single-axis cylinder 150, and the other side of the cylinder mounting plate 161 is fixedly connected with the double-axis cylinder 162. The extending direction of the double-axis cylinder 162 is perpendicular to the extending direction of the single-axis cylinder 150 and the moving direction of the moving block 140. One end of the pneumatic finger 163 is connected with the double-axis cylinder 162, and the other end of the pneumatic finger 163 is connected with the clamping plate 164. Under the action of the pneumatic finger 163, the clamping plate 164 can realize the opening and closing action in the horizontal direction.

[0040] In order to ensure the stability of the single-axis cylinder 150 driving the clamping unit 160 to move in one direction, a linear guide rail module 171 and a floating joint 172 are further included. The linear guide rail module 171 includes a first connecting plate 1711, a second connecting plate 1712, a linear guide rail 1713, a sliding block 1714, and a limiting block 1715. The first connecting plate 1711 is fixedly arranged between the moving block 140 and the single-axis cylinder 150. The linear guide rail 1713 is fixedly arranged on the first connecting plate 1711 and is parallel to the single-axis cylinder 150. The sliding block 1714 is sleeved on the linear guide rail 1713. The second connecting plate 1712 is fixedly connected with the sliding block 1714 and is also fixedly connected with the cylinder mounting plate 161. The limiting block 1715 is arranged at both ends of the linear guide rail 1713. The floating joint 172 is fixedly arranged between the double-axis cylinder 162 and the cylinder mounting plate 161.

[0041] Further, the sensor module 180 is further included, which includes the first sensor 181, the second sensor 182 and the third sensor 183 arranged in the first mounting groove 1132; the first sensor 181 is arranged at the first limit position of the moving block 140, the second sensor 182 is arranged at the second limit position of the moving block 140, so as to prevent the moving block 140 from colliding when exceeding the moving range; and the third sensor 183 is arranged at the movement origin of the moving block 140; when the L-shaped block 141 of the moving block 140 passes through the sensor module 180, the sensor outputs a signal to the controller 400.

[0042] In order to connect and fix the wires and cables in the feeding device, the terminal table 191 fixedly arranged on the first vertical support 111 and the drag chain 192 fixedly arranged on the transverse support 112 are further included.

[0043] As shown in Figure 5 The weight detection mechanism 200 includes the second bracket 210, the pressure sensor 220, the detection table 230 and the transmitter 240; the second bracket 210 is a second vertical support 211; the pressure sensor 220 is fixedly arranged above the second vertical support 211; the detection table 230 is fixedly connected with the pressure sensor 220; and the transmitter 240 is fixedly arranged on the second vertical support 211 and electrically connected with the pressure sensor 220.

[0044] The sorting bin mechanism 300 includes the third bracket 310 and the sorting bin 320; the third bracket 310 includes two third vertical supports 311 arranged in parallel to each other; and the sorting bin 320 is provided with the feeding opening 321 arranged above the two third vertical supports 311.

[0045] In the embodiment, the sorting bin mechanism 300 is arranged; and the number of the sorting bin mechanism 300 can be set according to the grading standard of the weight.

[0046] The controller 400 is electrically connected with the stepping motor 120, the single-shaft air cylinder 150, the double-shaft air cylinder 162, the sensor module 180, the transmitter 240 and the pressure sensor 220.

[0047] Compared with the prior art, the utility model has the following beneficial effects:

[0048] 1) The weight detection mechanism is independently integrated to realize accurate measurement of the weight of the product on the production line, and different range pressure sensors can be selected according to actual application requirements;

[0049] 2) The clamping mechanism is highly integrated and modularly designed, the position of the sensor can be changed according to actual application requirements, so as to change the number of stations and the distance between the stations, and the conveyor belt of different sizes can be used.

[0050] The terminology used in the description of the application herein only for the purpose of describing particular embodiments and is not intended to be limiting of the application. As used in the description of the application and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It also should be understood that "multiple" refers to two or more, unless otherwise indicated. The terms "first", "second", "third", etc. are used only to distinguish one element from another and are not used to describe a particular sequential or chronological order, nor are they used to indicate or imply relative importance. Where the description above refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The specific terms used in the description of the application are intended to be given their broadest interpretation in light of the prior art unless a particular interpretation is clearly indicated in the specific description.

[0051] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application.

Claims

1. A weight measuring sorting device for a production line, characterized in that: The device comprises a clamping mechanism, a weight detection mechanism, a sorting bin mechanism and a controller; the controller is electrically connected with the clamping mechanism, the weight detection mechanism and the sorting bin mechanism; The clamping mechanism comprises a first support, a stepping motor, a transmission module, a moving block, a single-shaft air cylinder and a clamping unit arranged on the first support; The transmission module comprises a belt pulley transmission unit and a ball screw transmission unit; the stepping motor is connected with the belt pulley transmission unit; the belt pulley transmission unit is connected with the ball screw transmission unit; the moving block is connected with the ball screw transmission unit; the moving block can move along a horizontal direction under the drive of the ball screw transmission unit; The single-shaft air cylinder is horizontally fixed on the moving block, and the extension direction of the single-shaft air cylinder is perpendicular to the moving direction of the moving block; The clamping unit comprises a cylinder mounting plate, a double-shaft air cylinder, a pneumatic finger and a clamping plate; one side of the cylinder mounting plate is connected with the single-shaft air cylinder; the other side of the cylinder mounting plate is fixedly connected with the double-shaft air cylinder; the extension direction of the double-shaft air cylinder is perpendicular to the extension direction of the single-shaft air cylinder and the moving direction of the moving block; one end of the pneumatic finger is connected with the double-shaft air cylinder; the other end of the pneumatic finger is connected with the clamping plate; The weight detection mechanism comprises a second support, a pressure sensor arranged on the second support and a detection table arranged on the pressure sensor; The sorting bin is provided with a feeding port.

2. Gravimetric sorting device for a production line according to claim 1, characterized in that: The moving block comprises a cover plate and a protruding block; the protruding block is fixedly arranged below the cover plate; the protruding block is connected with the ball screw transmission unit; two sides of one end of the protruding block connected with the cover plate are respectively provided with through grooves.

3. Gravimetric sorting device for a production line according to claim 2, characterized in that: The moving block further comprises an L-shaped block comprising a long-side block and a short-side block; the long-side block is fixedly arranged above the cover plate and extends a certain length away from the cover plate in a direction perpendicular to the through grooves; the short-side block is vertically arranged on one side of the long-side block facing the cover plate.

4. Gravimetric sorting device for a production line according to claim 3, characterized in that: The first support comprises two first vertical supports arranged in parallel to each other, a horizontal support fixedly connected with the two first vertical supports in a vertical direction, and a hollow mounting shell fixedly connected with the horizontal support; the hollow mounting shell is fixedly arranged outside the ball screw transmission unit; the ball screw transmission unit is fixedly connected with the horizontal support through the hollow mounting shell; the upper top surface of the hollow mounting shell is provided with a hollow window; the length of the hollow window is the same as that of the ball screw transmission unit; the width of the hollow window is the same as the distance between the through grooves arranged on the moving block; one side of the hollow mounting shell perpendicular to the upper top surface is provided with a mounting long groove along the side plate.

5. Gravimetric sorting device for a production line according to claim 4, characterized in that: The weight detection mechanism further comprises a transmitter fixedly arranged on the second support and electrically connected with the pressure sensor.

6. Gravimetric sorting device for a production line according to claim 5, characterized in that: Also include linear guide module; The linear guide module includes first connecting plate, second connecting plate, linear guide, sliding block and limit block, wherein The first connecting plate is fixedly arranged between the moving block and the single-shaft air cylinder, The linear guide is fixedly arranged on The first connecting plate and is parallel to The single-shaft air cylinder, The sliding block is sleeved on The linear guide;The second connecting plate is fixedly connected with The sliding block, The second connecting plate is also fixedly connected with The air cylinder mounting plate;The limit block is arranged at both ends of The linear guide.

7. Gravimetric sorting device for a production line according to claim 6, characterized in that: Also include floating joint, which is fixedly arranged between the double-shaft air cylinder and the air cylinder mounting plate.

8. Gravimetric sorting device for a production line according to claim 7, characterized in that: Also include sensor module, which includes first sensor, second sensor, third sensor arranged in the installation long slot;Wherein The first sensor is arranged at the first limit of The moving block, The second sensor is arranged at the second limit of The moving block;The third sensor is arranged at the origin of motion of The moving block.

9. Gravimetric sorting device for a production line according to claim 8, characterized in that: Also include terminal table fixedly arranged in The first vertical support and drag chain fixedly arranged in The transverse support.

10. Gravimetric sorting device for a production line according to claim 9, characterized in that: The controller is electrically connected with the step motor, the single-shaft air cylinder, the double-shaft air cylinder, the sensor module, the transmitter and the pressure sensor.

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