In-line combined scale

Abstract

The invention discloses an in-line combined scale, which comprises a machine body, a plurality of combined scale units are sequentially arranged on the machine body along the direction of a first horizontal line, each combined scale unit comprises a blanking bin and two material receiving bin assemblies arranged back to back relative to the first horizontal line, and each material receiving bin assembly comprises two material storage bins arranged at intervals along the direction of the first horizontal line. A first weighing bin and a second weighing bin which are arranged in a spaced mode in the direction of a second horizontal line are arranged below each storage bin, the second horizontal line is orthogonal to the first horizontal line, the discharging bin is used for bearing metered objects output by the first weighing bin and the second weighing bin, and the storage bins are provided with switching mechanisms; the switch mechanism can selectively open the first opening facing the first weighing bin or open the second opening facing the second weighing bin. The in-line combined scale is very compact in structural layout and can adapt to a plurality of packaging units in a narrow space, so that the workshop utilization rate and the packaging production efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of packaging production, in particular to an in-line combination weigher. Background Art

[0002] A general combination weigher uses a dispersed feeder to radially vibrate and disperse the supplied objects to be weighed, and uses multiple linear feeders to linearly vibrate and transport the dispersed objects to the outside, so that they are supplied to the supply hoppers facing the terminals of each linear feeder. Each supply hopper opens the hopper door to supply the objects to be weighed to multiple metering hoppers located below, and the combination weigher then selects a combination of metering hoppers. The multiple supply hoppers of this combination weigher are distributed in a circular ring. When the overall volume of the combination weigher is large, it only has one or two discharge channels. In some production workshops with limited space, it is often necessary to densely distribute multiple packaging units of the packaging machine in a smaller space. For example, some packaging machines have multiple packaging units arranged in a straight line, and each packaging unit has a packaging feed port. Traditional combination weighers cannot meet this demand. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, one of the objects of the present invention is to provide an in-line combination weigher with a very compact structure and layout, which can accommodate multiple packaging units in a small space.

[0004] According to an embodiment of the present invention, an in-line combination weigher comprises: a machine body, wherein the machine body has a plurality of combination weigher units arranged in sequence along a first horizontal line, the combination weigher units comprise a lower material bin and two receiving material bin assemblies arranged opposite to each other with respect to the first horizontal line, the receiving material bin assembly comprises two storage bins arranged at intervals along the direction of the first horizontal line, a first weighing bin and a second weighing bin arranged at intervals along a second horizontal line are arranged below each of the storage bins, the second horizontal line is orthogonal to the first horizontal line, the lower material bin is used to receive the objects to be weighed outputted by the first weighing bin and the second weighing bin, and the storage bin is provided with a switch mechanism, and the switch mechanism can selectively open a first opening toward the first weighing bin or open a second opening toward the second weighing bin.

[0005] The in-line combination weigher according to the embodiment of the present invention has at least the following beneficial effects:

[0006] One unloading bin of the in-line combination weigher of the above structure is connected to two combination weigher units, and each combination weigher unit is equipped with two storage bins. Each storage bin can selectively input the measured objects toward the corresponding first weighing bin or the second weighing bin through a switch mechanism, that is, one unloading bin can receive the measured objects released by four first weighing bins and four second weighing bins, thereby forming a weighing mode with eight bins freely combined, so that the in-line combination weigher can be equipped with multiple unloading bins along the direction of the first horizontal line. The structural layout is very compact and multiple packaging units can be adapted in a small space, thereby improving the workshop utilization rate and packaging production efficiency. The computer unit of the in-line combination weigher records the weight data of the objects to be weighed in the first weighing bin and the second weighing bin of the same combination weigher unit, and obtains a combination method close to the target weight through free combination. When some of the first weighing bins and the second weighing bins release the objects to be weighed, these released objects to be weighed are gathered in the lower bin to be output to the corresponding packaging unit, and then the storage bin chooses to open the first opening or the second opening according to the empty first weighing bin or the second weighing bin to replenish the objects to be weighed, and then enters the free combination process again. This design can reduce the number of storage bins, which is conducive to simplifying the structure of the combination weigher and saving space.

[0007] In some embodiments of the present invention, the material storage bin has a material storage cavity that passes through from top to bottom, and the switching mechanism includes a first door panel and a second door panel movably arranged at the lower port of the material storage cavity, and the first door panel and the second door panel can be tilted to form a "V" shape to close the lower port of the material storage cavity. When the lower port of the material storage cavity is closed, the first door panel is tilted toward the interior of the first weighing bin, and the second door panel is tilted toward the interior of the second weighing bin.

[0008] In some embodiments of the present invention, the lower ends of the two side panels of the material storage bin arranged at intervals along the direction of the first horizontal line both have a V-shaped plate, the first door panel and the second door panel are both rotatably connected to the material storage bin, the first door panel is connected to a first elastic member driving it to rest against one side edge of the two V-shaped plates, the second door panel is connected to a second elastic member driving it to rest against the other side edge of the two V-shaped plates, a first linkage rod group is provided between the material storage bin and the first door panel, a second linkage rod group is provided between the material storage bin and the second door panel, and the switching mechanism also includes a first driver for driving the first linkage rod group to move so that the first door panel opens the second opening, and a second driver for driving the second linkage rod group to move so that the second door panel opens the first opening.

[0009] In some embodiments of the present invention, the first driver includes a first motor and a first crank arranged on the output shaft of the first motor, the first linkage rod group includes a first rotating arm rotatably arranged on the storage bin, a first connecting rod is rotatably connected between one end of the first rotating arm and the first door panel, and the other end of the first rotating arm is connected to a first driving rod opposite to the first crank, and when the first crank rotates, it contacts the first driving rod to rotate the first rotating arm and drive the first door panel to rotate and open the first opening; the second driver includes a second motor and a second crank arranged on the output shaft of the second motor, the second linkage rod group includes a second rotating arm rotatably arranged on the body, a second connecting rod is rotatably connected between one end of the second rotating arm and the second door panel, and the other end of the second rotating arm is connected to a second driving rod opposite to the second crank, and when the first crank rotates, it contacts the second driving rod to rotate the second rotating arm and drive the second door panel to rotate and open the second opening.

[0010] In some embodiments of the present invention, there is a height space between the storage bin and the first weighing bin, and between the storage bin and the second weighing bin, and there is a gap between the first weighing bin and the second weighing bin, a guide sleeve is provided in the height space, and a first channel for guiding the measured objects flowing out of the first opening to the first weighing bin and a second channel for guiding the measured objects flowing out of the second opening to the second weighing bin are provided in the guide sleeve.

[0011] In some embodiments of the present invention, an inverted V-shaped guide plate is provided inside the guide sleeve, and the two side walls of the guide plate extend toward the first weighing bin and the second weighing bin respectively. The guide sleeve is connected to the machine body through an L-shaped bracket, and the L-shaped bracket is provided with a first waist-shaped hole extending in the vertical direction and a second waist-shaped hole extending in the horizontal direction. The first bolt is passed through the first waist-shaped hole and connected to the machine body, and the second bolt is passed through the second waist-shaped hole and connected to the guide sleeve.

[0012] In some embodiments of the present invention, the machine body is provided with a feed bin above the combination weigher unit, and a discharge port corresponding to the storage bin is provided below the feed bin, and an inverted V-shaped diverter plate is provided in the feed bin, and the two side walls of the diverter plate respectively guide the measured objects to be distributed to the discharge ports located on both sides of the first horizontal line, and a conveying track is provided between the discharge port and the corresponding storage bin, and a vibrator is provided below the conveying track to drive the measured objects to move to the storage bin.

[0013] In some embodiments of the present invention, the side wall of the diverter plate is provided with dividing strips arranged at intervals along the length direction of the diverter plate, and a guide channel connected to the discharge port is defined between two adjacent dividing strips, and the guide channel has a trumpet mouth that gradually narrows from top to bottom.

[0014] In some embodiments of the present invention, the machine body is movably provided with a flow limiting plate capable of changing the size of the communication port between the discharge port and the conveying track.

[0015] In some embodiments of the present invention, the flow limiting plate is penetrated by a long hole arranged in the vertical direction, and a threaded fastener is passed through the long hole and tightened on the machine body. The lower end of the flow limiting plate is provided with an arc plate extending toward the bottom surface of the conveying track, and there is a height distance between the arc plate and the bottom surface of the conveying track.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a structural schematic diagram of an embodiment of the in-line combination weigher of the present invention;

[0019] Figure 2 yes Figure 1 A side schematic diagram of an embodiment;

[0020] Figure 3 yes Figure 1 A structural schematic diagram of a material receiving bin assembly of an embodiment;

[0021] Figure 4 It is a structural schematic diagram of a combination of a storage bin and a switch mechanism;

[0022] Figure 5 yes Figure 4 A structural diagram from another perspective;

[0023] Figure 6 It is a schematic diagram of the feeding bin and conveying track from a top-down perspective.

[0024] Reference numerals:

[0025] The machine body 100; the combination weigher unit 200; the unloading bin 210; the receiving bin assembly 220; the storage bin 221; the first weighing bin 222; the second weighing bin 223; the switch mechanism 230; the first door plate 231; the second door plate 232; the first elastic member 233; the second elastic member 234; the first driver 235; the first motor 2351; the first crank 2352; the second driver 236; the second motor 2361; the second crank 2362; the first linkage rod group 300; the first rotating arm 310; the first linkage Rod 320; first drive rod 330; second linkage rod group 400; second rotating arm 410; second connecting rod 420; second drive rod 430; guide sleeve 500; first channel 510; second channel 520; guide plate 530; L-shaped bracket 540; first waist-shaped hole 541; second waist-shaped hole 542; feed bin 600; diverter plate 620; dividing strip 630; guide channel 640; conveying track 700; limiting plate 800; long hole 810; threaded fastener 820; arc plate 830. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientations or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” are 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 device or element referred to 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] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be 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.

[0030] See also Figures 1 to 3 The invention discloses an in-line combination weigher, comprising: a machine body 100, wherein the machine body 100 is provided with a plurality of combination weigher units 200 arranged in sequence along a first horizontal line, wherein the combination weigher units 200 include a lower material bin 210 and two receiving material bin assemblies 220 arranged opposite to each other with respect to the first horizontal line, wherein the receiving material bin assembly 220 includes two storage bins 221 arranged at intervals along the direction of the first horizontal line, wherein a first weighing bin 222 and a second weighing bin 223 arranged at intervals along a second horizontal line are arranged below each storage bin 221, wherein the second horizontal line is orthogonal to the first horizontal line, wherein the lower material bin 210 is used for receiving objects to be weighed outputted from the first weighing bin 222 and the second weighing bin 223, and wherein the storage bin 221 is provided with a switch mechanism 230, wherein the switch mechanism 230 can selectively open a first opening toward the first weighing bin 222 or a second opening toward the second weighing bin 223.

[0031] A feed bin 210 of the in-line combination weigher of the above structure is connected to two combination weigher units 200, and each combination weigher unit 200 is equipped with two storage bins 221. Each storage bin 221 can selectively input the measured objects toward the corresponding first weighing bin 222 or second weighing bin 223 through a switch mechanism 230, that is, one feed bin 210 can receive the measured objects released by four first weighing bins 222 and four second weighing bins 223, thereby forming a weighing mode with eight bins freely combined, so that the in-line combination weigher can be equipped with multiple feed bins 210 along the direction of the first horizontal line. The structural layout is very compact and multiple packaging units can be adapted in a small space, thereby improving the workshop utilization rate and packaging production efficiency. Among them, the projection of the machine body 100 in the vertical direction of this embodiment is roughly rectangular, the first horizontal line direction is the length direction of the machine body 100, and the second horizontal line direction is the width direction of the machine body 100. It can be imagined that the above inline combination weigher can form a plurality of linearly arranged combination weigher units 200 with a very small width size layout. Specifically, the computer unit of the inline combination weigher records the weight data of the objects to be weighed in each first weighing bin 222 and second weighing bin 223 of the same combination weigher unit 200, and obtains a combination method corresponding to the target weight through free combination. When some first weighing bins 222 and second weighing bins 223 release the objects to be weighed, these released objects to be weighed are combined in the lower material bin 210 to be output to the corresponding packaging unit, and then the storage bin 221 selects to open the first opening or the second opening to replenish the objects to be weighed according to the empty first weighing bin 222 or the second weighing bin 223, and then enters the free combination process again. This design can reduce the number of storage bins 221, which is conducive to simplifying the structure of the combination weigher and saving space.

[0032] It should be noted that each of the first weighing bin 222 and the second weighing bin 223 has a switch structure for opening or closing its inner cavity. The switch structure is a conventional technology in the art and will not be further described here.

[0033] See also Figure 3 and Figure 4 In some embodiments of the present invention, the material storage bin 221 has a material storage cavity that passes through from top to bottom, and the switch mechanism 230 includes a first door panel 231 and a second door panel 232 that are movably arranged at the lower port of the material storage cavity. The first door panel 231 and the second door panel 232 can be tilted to form a "V" shape to close the lower port of the material storage cavity. When the lower port of the material storage cavity is closed, the first door panel 231 is tilted toward the interior of the first weighing bin 222, and the second door panel 232 is tilted toward the interior of the second weighing bin 223.

[0034] Each storage bin 221 has a first door panel 231 and a second door panel 232. By selecting to open the first door panel 231 or the second door panel 232, the objects to be weighed can be input into the first weighing bin 222 or the second weighing bin 223. Specifically, when the first weighing bin 222 needs to be supplemented with objects to be weighed, the switch mechanism 230 opens the second door panel 232 to expose the first opening, and the objects to be weighed can slide downward along the inclination angle of the first door panel 231 to enter the first weighing bin 222; when the second weighing bin 223 needs to be supplemented with objects to be weighed, the switch mechanism 230 opens the first door panel 231 to expose the second opening, and the objects to be weighed can slide downward along the inclination angle of the second door panel 232 to enter the second weighing bin 223, which is conducive to smoothly inputting the objects to be weighed into the first weighing bin 222 or the second weighing bin 223.

[0035] See also Figure 4 and Figure 5 In some embodiments of the present invention, the lower ends of the two side panels of the storage bin 221, which are arranged at intervals along the direction of the first horizontal line, both have V-shaped plates, the first door panel 231 and the second door panel 232 are both rotatably connected to the storage bin 221, the first door panel 231 is connected to a first elastic member 233 that drives it to abut against one side edge of the two V-shaped plates, and the second door panel 232 is connected to a second elastic member 234 that drives it to abut against the other side edge of the two V-shaped plates, a first linkage rod group 300 is provided between the storage bin 221 and the first door panel 231, and a second linkage rod group 400 is provided between the storage bin 221 and the second door panel 232, and the switch mechanism 230 also includes a first driver 235 for driving the first linkage rod group 300 to move so that the first door panel 231 opens the second opening, and a second driver 236 for driving the second linkage rod group 400 to move so that the second door panel 232 opens the first opening.

[0036] It can be understood that, under the action of the first elastic member 233 and the second elastic member 234, the first door panel 231 and the second door panel 232 keep the lower port of the storage chamber closed, and the setting of the two V-shaped plates enables the measured object to be quickly released when the first door panel 231 or the second door panel 232 is opened, and the sealing effect between the first door panel 231, the second door panel 232 and the two V-shaped plates is better. When the object to be measured needs to be input into the first weighing bin 222, the second driver 236 drives the second door panel 232 through the second linkage rod group 400 to overcome the action of the second elastic member 234 to open a part of the lower port of the storage chamber, that is, to expose the first opening, and the object to be measured can flow into the first weighing bin 222 along the tilting direction of the first door panel 231; when the object to be measured needs to be input into the second weighing bin 223, the first driver 235 drives the first door panel 231 through the first linkage rod group 300 to overcome the action of the first elastic member 233 to open a part of the lower port of the storage chamber, that is, to expose the second opening, and the object to be measured can flow into the second weighing bin 223 along the tilting direction of the second door panel 232.

[0037] See also Figure 4 and Figure 5 In some embodiments of the present invention, the first driver 235 includes a first motor 2351 and a first crank 2352 provided on the output shaft of the first motor 2351, the first linkage rod group 300 includes a first rotating arm 310 rotatably provided on the storage bin 221, a first connecting rod 320 is rotatably connected between one end of the first rotating arm 310 and the first door panel 231, and the other end of the first rotating arm 310 is connected to a first driving rod 330 opposite to the first crank 2352, and when the first crank 2352 rotates, it contacts the first driving rod 330 to rotate the first rotating arm 310 and drive the first door panel 231 to rotate and open. The first opening; the second driver 236 includes a second motor 2361 and a second crank 2362 arranged on the output shaft of the second motor 2361, the second linkage rod group 400 includes a second rotating arm 410 rotatably arranged on the body 100, a second connecting rod 420 is rotatably connected between one end of the second rotating arm 410 and the second door panel 232, and the other end of the second rotating arm 410 is connected to a second driving rod 430 opposite to the second crank 2362, and when the first crank 2352 rotates, it contacts the second driving rod 430 to rotate the second rotating arm 410 and drive the second door panel 232 to rotate and open the second opening.

[0038] It should be noted that when the computer unit of the in-line combination weigher detects that a first weighing bin 222 or a second weighing bin 223 is empty, it can control the first motor 2351 or the second motor 2361 at the corresponding position to rotate, so as to replenish the first weighing bin 222 or the second weighing bin 223 with the measured objects. When the first motor 2351 rotates, the first crank 2352 shifts the first driving rod 330 to drive the first rotating arm 310 to rotate, and the first rotating arm 310 drives the first door plate 231 to rotate through the first connecting rod 320, so as to open the second opening; when the second motor 2361 rotates, the second crank 2362 shifts the second driving rod 430 to drive the second rotating arm 410 to rotate, and the second rotating arm 410 drives the second door plate 232 to rotate through the second connecting rod 420522, so as to open the first opening. The above structure is simple, reliable, and easy to produce and assemble. Of course, in other embodiments, the first driver 235 and the second driver 236 can also be replaced by a cylinder, the cylinder body of the cylinder can be rotatably connected to the body 100, and the extension rod of the cylinder is rotatably connected to the first door panel 231 or the second door panel 232. This method can also realize the opening and closing of the first door panel 231 and the second door panel 232.

[0039] See also Figure 3 and Figure 4 In some embodiments of the present invention, there is a height space between the storage bin 221 and the first weighing bin 222, and between the storage bin 221 and the second weighing bin 223, and there is a gap between the first weighing bin 222 and the second weighing bin 223. A guide sleeve 500 is provided in the height space, and a first channel 510 for guiding the measured object flowing out of the first opening to the first weighing bin 222 and a second channel 520 for guiding the measured object flowing out of the second opening to the second weighing bin 223 are provided in the guide sleeve 500. It is understandable that the height space between the storage bin 221 and the first weighing bin 222, and between the storage bin 221 and the second weighing bin 223 can avoid interference between the first door panel 231 and the second door panel 232 during rotation, and reserve sufficient space for movement; the gap between the first weighing bin 222 and the second weighing bin 223 can avoid the two being too close to each other, causing the objects to be measured to accidentally fall into the preset first weighing bin 222 or second weighing bin 223. When the second door panel 232 opens the first opening, the objects to be measured flowing out of the first opening enter the first weighing bin 222 along the first channel 510, and when the first door panel 231 opens the second opening, the objects to be measured flowing out of the second opening enter the second weighing bin 223 along the second channel 520, ensuring the accuracy of the conveying of the objects to be measured.

[0040] See also Figure 4In some embodiments of the present invention, an inverted V-shaped guide plate 530 is provided inside the guide sleeve 500, and the two side walls of the guide plate 530 extend toward the first weighing bin 222 and the second weighing bin 223 respectively. The guide sleeve 500 is connected to the machine body 100 through an L-shaped bracket 540, and the L-shaped bracket 540 is provided with a first waist-shaped hole 541 extending in the vertical direction and a second waist-shaped hole 542 extending in the horizontal direction. The first bolt is passed through the first waist-shaped hole 541 to be connected to the machine body 100, and the second bolt is passed through the second waist-shaped hole 542 to be connected to the guide sleeve 500. It can be understood that the object to be measured flowing out of the first opening falls on one side wall of the guide plate 530 and enters the first channel 510, and the object to be measured flowing out of the second opening falls on the other side wall of the guide plate 530 and enters the second channel. When the object to be measured falls on the side wall of the guide plate 530 in an incorrect position, the user can loosen the first bolt and the second bolt and solve the problem by adjusting the direction of the guide sleeve 500 along the second horizontal line and the height direction, which is helpful for production debugging.

[0041] See also Figure 1 and Figure 6 In some embodiments of the present invention, the body 100 is provided with a feed bin 600 above the combination weigher unit 200, and a discharge port corresponding to the storage bin 221 is provided below the feed bin 600, and an inverted V-shaped diverter plate 620 is provided inside the feed bin 600, and the two side walls of the diverter plate 620 respectively guide the objects to be measured to be distributed to the discharge ports located on both sides of the first horizontal line, and a conveying track 700 is provided between the discharge ports and the corresponding storage bin 221, and a vibrator is provided below the conveying track 700 to drive the objects to be measured to move to the storage bin 221. It can be understood that a large amount of objects to be measured are poured into the feed bin 600, and the objects to be measured are quickly divided into two parts located on both sides of the first horizontal line under the action of the diverter plate 620, so that they enter each discharge port with a relatively uniform flow rate, and enter the conveying track 700 through the discharge port, and are relatively linearly fed to the storage bin 221 under the action of the vibrator.

[0042] See also Figure 6 In some embodiments of the present invention, in order to guide the measured objects to be evenly diverted to each discharge port in a more orderly manner, the side wall of the diverter plate 620 is provided with dividing strips 630 arranged at intervals along the length direction of the diverter plate 620, and a guide channel 640 connected to the discharge port is defined between two adjacent dividing strips 630, and the guide channel 640 has a trumpet mouth that gradually shrinks from top to bottom.

[0043] See also Figure 3In some embodiments of the present invention, the machine body 100 is movably provided with a flow limiting plate 800 capable of changing the size of the communication port between the material outlet and the conveying track 700. It can be understood that the size of the communication port between the material outlet and the conveying track 700 can be adjusted by adjusting the position of the limiting plate, thereby adjusting the flow rate of the measured object.

[0044] See also Figure 3 In some embodiments of the present invention, the limiting plate 800 is provided with a long hole 810 arranged in the vertical direction, the threaded fastener 820 is provided through the long hole 810 and is tightened on the body 100, and the lower end of the limiting plate 800 is provided with an arc plate 830 extending toward the bottom surface of the conveying track 700, and there is a height distance between the arc plate 830 and the bottom surface of the conveying track 700. It can be understood that when the user loosens the threaded fastener 820, the limiting plate 800 can be driven to rise or fall to a certain position, thereby adjusting the height distance between the arc plate 830 and the bottom surface of the conveying track 700, and finally tightening the threaded fastener 820, which is very convenient for adjustment.

[0045] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An in-line combination weigher, characterized in that: include: A machine body (100), wherein the machine body (100) has a plurality of combination weighing units (200) arranged in sequence along a first horizontal line direction, wherein the combination weighing unit (200) comprises a material discharge bin (210) and two material receiving bin assemblies (220) arranged opposite to each other with respect to the first horizontal line, wherein the material receiving bin assembly (220) comprises two material storage bins (221) arranged at intervals along the direction of the first horizontal line, wherein a first weighing bin (222) and a second weighing bin (223) arranged at intervals along the direction of a second horizontal line are arranged below each of the material storage bins (221), wherein the second horizontal line is orthogonal to the first horizontal line, wherein the material discharge bin (210) is used for receiving objects to be weighed outputted by the first weighing bin (222) and the second weighing bin (223), and wherein the material storage bin (221) is provided with a switch mechanism (230), wherein the switch mechanism (230) can selectively open a first opening toward the first weighing bin (222) or a second opening toward the second weighing bin (223).

2. The in-line combination weigher according to claim 1, characterized in that: The material storage bin (221) has a material storage cavity which is connected from top to bottom. The switch mechanism (230) comprises a first door panel (231) and a second door panel (232) which are movably arranged at the lower end of the material storage cavity. The first door panel (231) and the second door panel (232) can be tilted to form a "V" shape to close the lower end of the material storage cavity. When the lower end of the material storage cavity is closed, the first door panel (231) is tilted toward the inside of the first weighing bin (222), and the second door panel (232) is tilted toward the inside of the second weighing bin (223).

3. The in-line combination weigher according to claim 2, characterized in that: The lower ends of the two side plates of the storage bin (221) which are arranged at intervals along the direction of the first horizontal line are both provided with V-shaped plates. The first door plate (231) and the second door plate (232) are both rotatably connected to the storage bin (221). The first door plate (231) is connected to a first elastic member (233) which drives it to abut against one side edge of the two V-shaped plates. The second door plate (232) is connected to a second elastic member (234) which drives it to abut against the other side edge of the two V-shaped plates. A first linkage rod group (300) is provided between the first door panels (231), a second linkage rod group (400) is provided between the storage bin (221) and the second door panel (232), and the switch mechanism (230) further comprises a first driver (235) for driving the first linkage rod group (300) to move so that the first door panel (231) opens the second opening, and a second driver (236) for driving the second linkage rod group (400) to move so that the second door panel (232) opens the first opening.

4. The in-line combination weigher according to claim 3, characterized in that: The first driver (235) includes a first motor (2351) and a first crank (2352) arranged on the output shaft of the first motor (2351); the first linkage rod group (300) includes a first rotating arm (310) rotatably arranged on the storage bin (221); a first connecting rod (320) is rotatably connected between one end of the first rotating arm (310) and the first door panel (231); the other end of the first rotating arm (310) is connected to a first driving rod (330) opposite to the first crank (2352); when the first crank (2352) rotates, it contacts the first driving rod (330) to rotate the first rotating arm (310) and drive the first door panel (231) to rotate and open the first opening The second driver (236) includes a second motor (2361) and a second crank (2362) arranged on the output shaft of the second motor (2361); the second linkage rod group (400) includes a second rotating arm (410) rotatably arranged on the body (100); a second connecting rod (420) is rotatably connected between one end of the second rotating arm (410) and the second door panel (232); the other end of the second rotating arm (410) is connected to a second driving rod (430) opposite to the second crank (2362); when the first crank (2352) rotates, it contacts the second driving rod (430) to rotate the second rotating arm (410) and drive the second door panel (232) to rotate and open the second opening.

5. The in-line combination weigher according to claim 2, characterized in that: There is a height space between the material storage bin (221) and the first weighing bin (222), and between the material storage bin (221) and the second weighing bin (223), and there is a gap between the first weighing bin (222) and the second weighing bin (223), a guide sleeve (500) is arranged in the height space, and a first channel (510) for guiding the measured object flowing out of the first opening to the first weighing bin (222) and a second channel (520) for guiding the measured object flowing out of the second opening to the second weighing bin (223) are arranged in the guide sleeve (500).

6. The in-line combination weigher according to claim 5, characterized in that: An inverted V-shaped guide plate (530) is provided inside the guide sleeve (500), and the two side walls of the guide plate (530) extend toward the first weighing bin (222) and the second weighing bin (223) respectively. The guide sleeve (500) is connected to the machine body (100) through an L-shaped bracket (540), and the L-shaped bracket (540) is provided with a first waist-shaped hole (541) extending in the vertical direction and a second waist-shaped hole (542) extending in the horizontal direction. A first bolt is passed through the first waist-shaped hole (541) to be connected to the machine body (100), and a second bolt is passed through the second waist-shaped hole (542) to be connected to the guide sleeve (500).

7. The in-line combination weigher according to claim 1, characterized in that: The machine body (100) is provided with a feeding bin (600) above the combination weigher unit (200), and a discharge port corresponding to the storage bin (221) is provided below the feeding bin (600). An inverted V-shaped diverter plate (620) is provided inside the feeding bin (600), and the two side walls of the diverter plate (620) respectively guide the objects to be measured to be distributed to the discharge ports located on both sides of the first horizontal line, and a conveying track (700) is provided between the discharge port and the corresponding storage bin (221), and a vibrator is provided below the conveying track (700) for driving the objects to be measured to move to the storage bin (221).

8. The in-line combination weigher according to claim 7, characterized in that: The side wall of the diverter plate (620) is provided with dividing strips (630) arranged at intervals along the length direction of the diverter plate (620), and a guide channel (640) connected to the discharge port is defined between two adjacent dividing strips (630), and the guide channel (640) has a bell mouth that gradually narrows from top to bottom.

9. The in-line combination weigher according to claim 7, characterized in that: The machine body (100) is movably provided with a flow limiting plate (800) capable of changing the size of the communication port between the material outlet and the conveying track (700).

10. The in-line combination weigher according to claim 9, characterized in that: The flow limiting plate (800) is penetrated by a long hole (810) arranged in a vertical direction, and a threaded fastener (820) is passed through the long hole (810) and is screwed onto the machine body (100). The lower end of the flow limiting plate (800) is provided with an arc plate (830) extending toward the bottom surface of the conveying track (700), and a height distance is provided between the arc plate (830) and the bottom surface of the conveying track (700).

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