Packaging scale

Abstract

The utility model provides a packing scale, comprising a driving mechanism which comprises a mounting plate and a mounting assembly used for being connected with a measuring hopper to realize weighing, and the mounting assembly is provided with a connecting frame used for being connected with the measuring hopper and an extension frame connected between the connecting frame and the mounting plate; the measuring hopper comprises a mounting frame used for being connected with the mounting assembly and a hopper body connected with the mounting frame, and the mounting frame is provided with a suspension connecting part connected with the connecting frame, a suspension arm extending towards the hopper body along one end of the suspension connecting part and a swing arm connecting part extending in the direction away from the hopper body along the other end of the suspension connecting part; wherein the connecting frame extends towards the bucket body through the extension frame, so that the length of the suspension wall is shortened under the condition that the relative position of the bucket body and the mounting plate is not changed, the rigidity is improved, the vibration of the bucket body fixed through the suspension arm is reduced, and the metering efficiency and precision are effectively improved. In addition, the driving mechanism and the metering hopper are easy to manufacture and low in production cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical equipment field, concretely is a kind of packing scale. BACKGROUND

[0002] With the social development and progress, factory production in various fields gradually realizes automation, and higher requirements are put forward for equipment. The weighing and subpackaging function of multi-head scale needs to face large-scale packaging or low-density products. At present, when facing similar requirements, the multi-head scale needs to use large-size and large-capacity large-scale measuring hopper to contain products, which will increase the requirements for the driving part. If the driving part of the small hopper is directly used for driving, it will produce shaking, noise, inaccurate weighing and other problems. The large-scale clamp-type driving part used to drive the large-scale measuring hopper has the disadvantages of complex manufacturing and high cost.

[0003] At the same time, the connecting frame for suspending the measuring hopper and the output assembly for driving the measuring hopper in the driving part of the existing packing scale are arranged close to the mounting plate, as shown in Figure 1 The connecting frame for suspending the measuring hopper and the output assembly for driving the measuring hopper in the driving part of the existing packing scale are arranged close to the mounting plate, as shown in

[0004] The suspension rod 101 cooperating with the connecting frame in the mounting frame of the large-scale measuring hopper and the driven rod 102 cooperating with the output assembly are also arranged close to the driving mechanism, so that the suspension arm 103 for supporting the body of the measuring hopper is relatively long, which leads to poor rigidity and easily causes the measuring hopper to vibrate, deform and other problems, adversely affecting the measuring efficiency and accuracy.

[0005] Therefore, how to provide a packing scale capable of stably driving the measuring hopper at low cost and reducing the shaking of the measuring hopper has become a problem to be solved. CONTENT OF THE UTILITY MODEL

[0006] In view of the above problems, the utility model provides a packing scale, which extends the connecting frame of the driving structure towards the body of the measuring hopper without changing the relative position of the body and the mounting plate, and correspondingly reduces the length of the suspension arm of the measuring hopper, effectively improves the rigidity and reduces the shaking of the measuring hopper. At the same time, it is simple to manufacture and has low production cost.

[0007] The packing scale of the utility model comprises: a driving mechanism comprising a mounting plate and a mounting assembly for connecting with a measuring hopper to realize weighing, the mounting assembly having a connecting frame for connecting with the measuring hopper and an extension frame connected between the connecting frame and the mounting plate.

[0008] The metering hopper comprises a mounting frame for connecting with a mounting assembly and a hopper body connected with the mounting frame, the mounting frame has a suspension connecting part connected with a connecting frame, a suspension arm extending from one end of the suspension connecting part to the hopper body, and a swing arm connecting part extending from the other end of the suspension connecting part to a direction away from the hopper body, wherein the connecting frame is provided to extend towards the hopper body through an extension frame, so that the length of the suspension wall is shortened without changing the relative position of the hopper body and the mounting plate.

[0009] According to the above technical solution, by extending the connecting frame towards the hopper body in the drive mechanism, the length of the suspension arm of the mounting frame connected with the connecting frame in the metering hopper can be reduced correspondingly without changing the relative position of the hopper body and the mounting plate, the rigidity is improved, and the vibration of the hopper body fixed by the suspension arm is reduced, thereby effectively improving the metering efficiency and accuracy. Moreover, the drive mechanism and the metering hopper are simple to manufacture and have low production cost.

[0010] Optionally, the mounting assembly further comprises a support block and a weighing strain gauge, the support block is installed on one side of the mounting plate, the weighing strain gauge, the extension frame and the connecting frame are located on one side of the mounting plate, the weighing strain gauge is installed on the support block and connected with the connecting frame through the extension frame.

[0011] According to the above technical solution, by fixing the support block to the mounting plate, the weighing strain gauge, the extension frame and the connecting frame can be effectively fixed and supported, so that the extension frame can be kept extending towards the hopper body, and the connecting frame can be kept extending towards the hopper body.

[0012] Optionally, a cover is further arranged on the side of the mounting plate where the weighing strain gauge is located, the cover covers the weighing strain gauge, and the extension frame penetrates through the cover and is connected with the connecting frame located outside the cover.

[0013] According to the above technical solution, the cover can effectively protect the weighing strain gauge and avoid external interference of the weighing strain gauge, thereby ensuring the accuracy of weight detection.

[0014] Optionally, the cover is a trapezoidal cover.

[0015] According to the above technical solution, the slope of the trapezoidal cover can make the liquid, dust, product fragments, powder and the like falling on the cover slide down, thereby avoiding accumulation and reducing the risk of collision between the foreign matters and the metering hopper.

[0016] Optionally, a driving motor is further arranged on the side of the mounting plate where the support block is located, an output shaft of the driving motor penetrates through the mounting plate, a rotating shaft connecting piece and a linkage are further arranged on the side of the mounting plate where the weighing strain gauge is located, one end of the rotating shaft connecting piece is connected with the output shaft, and the other end of the rotating shaft connecting piece is connected with the linkage.

[0017] Optionally, a cover plate is further connected to the side of the mounting plate where the support block is located, and a control circuit board is installed in the cover plate.

[0018] Optionally, the metering hopper further comprises: a hanging rod arranged in the hanging connecting part, the connecting frame is provided with a hanging groove, and the hanging rod is arranged in the hanging groove so that the mounting frame is hung on the connecting frame;

[0019] The first hopper door is arranged on the mounting frame through a first support, and the first support is further provided with a sliding groove;

[0020] The second hopper door is arranged on the mounting frame through a second support, and a connecting rod is arranged between the first support and the second support, so that the first hopper door and the second hopper door are driven to rotate in opposite directions;

[0021] The swinging arm is hinged in the swinging arm connecting part, one end of the swinging arm close to the mounting plate is provided with a driven rod matched with the linkage, and the other end of the swinging arm is provided with a sliding block matched with the sliding groove; and the swinging arm is rotated to drive the first hopper door and the second hopper door to approach or separate from each other.

[0022] According to the above technical scheme, the metering hopper can be hung on the connecting frame of the driving mechanism through the hanging rod, so that the load cell can normally detect the weight of the material in the metering hopper. At the same time, the driven rod also remains matched with the linkage, and the first hopper door and the second hopper door are controlled to be opened or closed correspondingly through transmission, so that normal cooperation weighing and discharging are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a large metering hopper in the prior art;

[0024] Figure 2 It is a structural schematic diagram of a packaging scale in the embodiment of the present application;

[0025] Figure 3 It is a side view of a driving mechanism in the embodiment of the present application;

[0026] Figure 4 It is a structural schematic diagram of a driving mechanism in the embodiment of the present application;

[0027] Figure 5 It is a structural schematic diagram of a driving mechanism in the embodiment of the present application from different perspectives;

[0028] Figure 6 It is a side view of a metering hopper in the embodiment of the present application;

[0029] Figure 7 It is a structural schematic diagram of a metering hopper in the embodiment of the present application; and

[0030] Figure 8 It is a structural schematic diagram of the first hopper door and the second hopper door when they are opened in the embodiment of the present application.

[0031] Suspension rod 101, driven rod 102, suspension arm 103, packaging scale 100, driving mechanism 10, mounting plate 11, support block 12, weighing strain sensor 13, extension frame 14, connecting frame 15, cover 16, driving motor 17, rotating shaft connecting piece 171, linkage 172, cover plate 18, side plate 181, wire harness port 182, motor 19, fixing frame 191, metering hopper 20, mounting frame 21, suspension connecting part 211, suspension arm 212, swing arm connecting part 213, hopper body fixing frame 214, hopper body 22, suspension rod 23, first hopper door 24, first support 241, chute 242, second hopper door 25, second support 251, connecting rod 26, swing arm 27, driven rod 271, sliding block 272. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] Figure 2 The structure of the packaging scale in the embodiments of the present application is shown in the figure.

[0034] As shown in Figure 2 , the packaging scale 100 in the present embodiment includes a driving mechanism 10 and a metering hopper 20.

[0035] Referring to Figures 3-5 , the driving mechanism 10 includes a mounting plate 11 and a mounting assembly for connecting with the metering hopper 20 to realize weighing. The mounting assembly has a connecting frame 15 for connecting with the metering hopper 20 and an extension frame 14 connected between the connecting frame 15 and the mounting plate 11.

[0036] The mounting assembly further includes a support block 12 and a weighing strain sensor 13. The support block 12 is mounted on one side of the mounting plate 11. The weighing strain sensor 13, the extension frame 14 and the connecting frame 15 are all located on one side of the mounting plate 11. The weighing strain sensor 13 is mounted on the support block 12 and connected with the connecting frame 15 through the extension frame 14.

[0037] Specifically, the support block 12 is fixedly installed on one side of the mounting plate 11, and the support block 12 is further provided with a weighing mounting seat (not shown in the figure), the weighing mounting seat is provided in the mounting plate 11, one end of the weighing strain sensor 13 is fixedly installed in the weighing mounting seat, and the other end of the weighing strain sensor 13 is connected with the connecting frame 15 through the extension frame 14. The connecting frame 15 can be suspended with the metering hopper 20, and the material weight in the metering hopper 20 can be inductively detected by the weighing strain sensor 13.

[0038] In the embodiment, by installing the support block 12 on the mounting plate 11, the weighing strain sensor 13, the extension frame 14 and the connecting frame 15 connected with the support block 12 can be arranged to extend towards the hopper body 22 of the metering hopper 20, so that the length of the suspension wall 212 for supporting and fixing the hopper body 22 in the metering hopper 20 can be shortened without changing the relative position of the hopper body 22 and the mounting plate 11.

[0039] The mounting plate 11 is further provided with a cover 16 on the side of the weighing strain sensor 13, the cover 16 covers the weighing strain sensor 13, and the extension frame 14 is provided in the cover 16 and connected with the connecting frame 15 outside the cover 16.

[0040] Specifically, the cover 16 is a trapezoidal cover. The weighing strain sensor 13 arranged outside can be effectively covered and protected by the cover 16. Meanwhile, the side of the trapezoidal cover 16 is a slope, and the slope arrangement can make the liquid, dust or product fragments, powder and the like falling on the cover slide down, avoid accumulation, and reduce the risk of collision between the sundries and the metering hopper 20.

[0041] The mounting plate 11 is further provided with a driving motor 17 on the side of the support block 12, the output shaft of the driving motor 17 is provided in the mounting plate 11, the mounting plate 11 is further provided with a rotating shaft connecting piece 171 and a linkage 172 on the side of the weighing strain sensor 13, one end of the rotating shaft connecting piece 171 is connected with the output shaft, and the other end of the rotating shaft connecting piece 171 is connected with the linkage 172.

[0042] Specifically, the material weight in the metering hopper 20 can be detected by the weighing strain sensor 13, when the material reaches a preset weight, the output shaft of the driving motor 17 is controlled to rotate, the rotating shaft connecting piece 171 is driven to rotate, the linkage 172 is correspondingly driven to rotate, and the cooperatively arranged metering hopper 20 is correspondingly discharged.

[0043] The mounting plate 11 is further connected with a cover plate 18 on the side of the support block 12, and the cover plate 18 is provided with a control circuit board (not shown in the figure).

[0044] Specifically, the cover plate 18 is fixed to the mounting plate 11 through the side plate 181, and the cover plate 18 is arranged at the rear shell end of the driving motor 17 away from the output shaft, which can prevent foreign matters from entering the driving motor 17 and is beneficial to ensure the normal operation of the driving motor 17. Meanwhile, the cover plate 18 and the side plate 181 are provided with a wire harness port 182, and the electrical lines in the driving mechanism 10 can be concentrated and led out to the control circuit board through the wire harness port 182, which effectively avoids the disorder of the lines.

[0045] In the embodiment, the driving mechanism 10 further has a motor 19 and a fixing frame 191 arranged on both sides of the mounting plate 11. The motor 19 is located above the driving motor 17 and between the cover plate 18 and the mounting plate 11. The fixing frame 191 is located above the metering hopper 20 and is used for fixing the lower hopper. The output shaft of the motor 19 penetrates the mounting plate 11 and can control the lower hopper to discharge materials, which can be input into the metering hopper 20.

[0046] Reference Figure 6 and Figure 7 The metering hopper 20 includes a mounting frame 21 connected with the connecting frame 15 and a hopper body 22 connected with the mounting frame 21. The hopper body 22 serves as a containing cavity for input materials.

[0047] The mounting frame 21 has a suspension connecting part 211 connected with the connecting frame 15, a suspension arm 212 extending from one end of the suspension connecting part 211 to the hopper body 22, and a swing arm connecting part 213 extending from the other end of the suspension connecting part 211 away from the hopper body 22.

[0048] Specifically, the suspension connecting part 211, the suspension arm 212, and the swing arm connecting part 213 are integrally formed. The mounting frame 21 is arranged in a structure matched with the connecting frame 15 arranged to protrude away from the front of the mounting plate 11. Without changing the relative positions of the hopper body 22 and the mounting plate 11, the suspension connecting part 211 and the suspension arm 212 are arranged close to the hopper body 22, and the swing arm connecting part 213 is correspondingly arranged to extend away from the hopper body 22, so that the arrangement position of the driven rod 271 in the swing arm connecting part 213 matched with the linkage 172 remains unchanged. Under the condition that the driving mechanism 10 and the metering hopper 20 can be kept matched and connected and can perform weighing and discharging, the length of the suspension arm 212 is reduced, the rigidity can be effectively enhanced, and when the mounting frame 21 supports and fixes the hopper body 22 through the suspension arm 212, the vibration of the hopper body 22 can be effectively reduced.

[0049] Further, the metering hopper 20 further includes a suspension rod 23, a first hopper door 24, a second hopper door 25, and a swing arm 27.

[0050] The hanging rod 23 is arranged in the hanging connecting part 211, the hanging groove is arranged in the connecting frame 15, the hanging rod 23 is arranged in the hanging groove, the mounting frame 21 is hung and connected to the connecting frame 15, so that the measuring hopper 20 is connected to the driving mechanism 10.

[0051] The first hopper door 24 is arranged on the mounting frame 21 by the first support 241, and the sliding groove 242 is further arranged on the first support 241.

[0052] Specifically, the hanging arm 212 is connected with the hopper fixing frame 214 for supporting and fixing the hopper body 22, and the first support 241 and the second support 251 are swingably arranged in the hopper fixing frame 214. The two side portions of the first support 241 are rotatably connected with the hopper fixing frame 214, one side of the middle portion of the first support 241 is connected with the first hopper door 24, and the other side of the middle portion of the first support 241 is provided with the sliding groove 242.

[0053] The second hopper door 25 is arranged on the mounting frame 21 by the second support 251, and the connecting rod 26 is arranged between the first support 241 and the second support 251, so as to drive the first hopper door 24 and the second hopper door 25 to rotate in opposite directions.

[0054] Specifically, the two side portions of the second support 251 are rotatably connected with the hopper fixing frame 214, and one side of the middle portion of the second support 251 is connected with the second hopper door 25. The connecting rod 26 is arranged between the first support 241 and the second support 251, so as to drive the first hopper door 24 and the second hopper door 25 to rotate in opposite directions through the transmission of the connecting rod 26, so that the first hopper door 24 and the second hopper door 25 are in a separated opening state or a close closing state.

[0055] The swing arm 27 is hinged on the swing arm connecting part 213, one end of the swing arm 27 close to the mounting plate 11 is provided with the driven rod 271 matched with the linkage 172, and the other end is provided with the sliding block 272 matched with the sliding groove 242. The swing arm 27 drives the first hopper door 24 and the second hopper door 25 to approach or separate from each other.

[0056] Specifically, the linkage 172 is arranged above the driven rod 271 and in contact with the driven rod 271. When the output shaft of the driving motor 17 rotates, the shaft connecting piece 171 rotates and correspondingly drives the linkage 172 to rotate, the linkage 172 correspondingly descends or rises, so as to drive the swing arm 27 to swing towards or away from the mounting plate 11 through the driven rod 271, and correspondingly drive the sliding block 272 to move in the sliding groove 242, so that the first support 241 rotates towards or away from the mounting plate 11, drives the first hopper door 24 to rotate, and at the same time drives the second support 251 to rotate through the cooperation of the connecting rod 26, so that the first hopper door 24 and the second hopper door 25 approach or separate from each other.

[0057] ReferenceFigure 2 and Figure 8 The working process of the packaging scale 100 during discharging in the embodiment is as follows:

[0058] The weighing strain sensor 13 can sense the weight of the material in the hopper body 22, when the material in the hopper body 22 reaches the preset weight, the output shaft of the driving motor 17 is controlled to rotate and correspondingly drive the linkage 172 to rotate, the linkage 172 drives the driven rod 271 to be pressed downward, correspondingly makes the swing arm 27 swing to the direction close to the mounting plate 11, and makes the sliding block 272 move in the sliding groove 242 to drive the first support 241 to rotate and correspondingly make the first hopper door 24 rotate to the direction close to the mounting plate 11, at the same time, the second support 251 is driven to rotate by the connecting rod 26 to make the first hopper door 24 and the second hopper door 25 open in opposite directions, and the discharging action after the material in the hopper body 22 is weighed is completed.

[0059] In the packaging scale 100 of the embodiment, without changing the relative position of the hopper body 22 and the mounting plate 11, the driving mechanism 10 is arranged by fixing the support block 12 to the mounting plate 11, and correspondingly extending the weighing strain sensor 13, the extension frame 14 and the connecting frame 15 arranged on the support block 12 to the hopper body 22. The suspension connecting part 211 and the suspension arm 212 of the mounting frame 21 in the measuring hopper 20 are correspondingly arranged close to the hopper body 22, and the swing arm connecting part 213 is extended. Under the condition that the driving mechanism 10 and the measuring hopper 20 can keep the suspension connection and cooperate with the weighing and discharging, the length of the suspension arm 212 is effectively shortened, the rigidity is enhanced, the vibration of the hopper body 22 fixed by the suspension arm 212 can be effectively weakened, and the measuring efficiency and accuracy are improved.

[0060] The above is only a preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A packaging scale characterized in that, The package scale comprises: a driving mechanism comprising a mounting plate and a mounting assembly for connecting with a measuring hopper to realize weighing, the mounting assembly having a connecting frame for connecting with the measuring hopper and an extension frame connected between the connecting frame and the mounting plate; and the measuring hopper comprising a mounting frame for connecting with the mounting assembly and a hopper body connected with the mounting frame, the mounting frame having a hanging connection part connected with the connecting frame, a hanging arm extending from one end of the hanging connection part to the hopper body, and a swing arm connection part extending from the other end of the hanging connection part away from the hopper body, wherein the connecting frame is arranged to extend towards the hopper body through the extension frame, so that the length of the hanging arm is shortened without changing the relative position of the hopper body and the mounting plate.

2. The package scale according to claim 1, wherein the mounting assembly further comprises a support block mounted on one side of the mounting plate, and a weighing strain gauge, the weighing strain gauge, the extension frame and the connecting frame are all located on one side of the mounting plate, the weighing strain gauge is mounted on the support block and connected with the connecting frame through the extension frame.

3. The package scale according to claim 2, wherein the mounting plate further comprises a cover on the side of the weighing strain gauge, the cover covers the weighing strain gauge, and the extension frame passes through the cover and connects with the connecting frame outside the cover.

4. The package scale according to claim 3, wherein the cover is a trapezoidal cover.

5. The package scale according to claim 2, wherein the mounting plate further comprises a driving motor on the side of the support block, an output shaft of the driving motor passes through the mounting plate, the mounting plate further comprises a rotating shaft connecting piece and a linkage on the side of the weighing strain gauge, one end of the rotating shaft connecting piece is connected with the output shaft, and the other end is connected with the linkage.

6. The package scale according to claim 2, wherein the mounting plate further comprises a cover plate connected on the side of the support block, and a control circuit board is mounted in the cover plate. The measuring hopper further comprises:

7. The packaging scale of claim 1, wherein, a hanging rod arranged in the hanging connection part, the connecting frame is provided with a hanging groove, and the hanging rod is arranged in the hanging groove to hang the mounting frame on the connecting frame; a first hopper door swingingly arranged on the mounting frame through a first support, the first support is further provided with a sliding groove; a second hopper door swingingly arranged on the mounting frame through a second support, a connecting rod is arranged between the first support and the second support to drive the first hopper door and the second hopper door to rotate in opposite directions; and a swing arm hingedly arranged in the swing arm connection part, one end of the swing arm close to the mounting plate is provided with a driven rod matched with the linkage, and the other end is provided with a sliding block matched with the sliding groove, and the swing arm drives the first hopper door and the second hopper door to move close to or away from each other. ​

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