High-precision quantitative weighing packaging machine

Abstract

The utility model discloses a high-precision quantitative weighing packaging machine which comprises a feeding assembly, a discharging assembly, a weighing assembly and a weighing assembly. The feeding assembly comprises a feeding box with an opening in the top, and the bottom of the feeding box is communicated with a discharging pipe used for providing materials. The fixing assembly is located below the feeding assembly and comprises a mounting outer ring and a mounting inner ring, a plurality of sets of transverse rods are evenly arranged between the mounting outer ring and the mounting inner ring in the circumferential direction of the mounting outer ring and the mounting inner ring, telescopic pieces are slidably connected to the transverse rods in the length direction of the transverse rods and can stretch out and draw back in the vertical direction, and fasteners used for being fixedly connected with the transverse rods are arranged at the top ends of the telescopic pieces; a clamping piece is arranged at the bottom end and used for clamping and fixing bag openings of packaging bags with different heights; the weighing assembly is located below the fixing assembly and used for weighing the packaging bag containing the materials. The packaging bag clamping device can be used for clamping and fixing packaging bags with different height specifications.

Description

Technical Field

[0001] This utility model relates to the field of weighing and packaging machine technology, and in particular to a high-precision quantitative weighing and packaging machine. Background Technology

[0002] Quantitative weighing and packaging machines are widely used for quantitative weighing and packaging of granular and powdery materials in industries such as grain, fertilizer, and feed.

[0003] When using a quantitative weighing and packaging machine to weigh and bag materials, it is necessary to fix the packaging bags to keep the bag openings open and prevent materials from scattering outside the bags and causing waste. Chinese Patent (CN220298798U) discloses a quantitative weighing and packaging machine for feed, including a feeding hopper, a feeding box, a weighing device, multiple sets of threaded rods, and a drive motor. Threaded blocks are threaded onto the threaded rods, and the threaded blocks are connected to pull rods for opening the bag openings. This device drives the corresponding threaded rods to rotate via the drive motor, thereby moving the pull rods along the length of the threaded rods, which can open and fix the bag openings during filling. While this quantitative weighing and packaging machine can open and fix the bag openings, it has some problems in practical use.

[0004] (1) The quantitative weighing and packaging machine includes multiple drive motors. When fixing the bag opening of the packaging bag, it is necessary to adjust the position of the pull rod through multiple drive motors. The setting of multiple drive motors increases the investment cost of the device.

[0005] (2) The height of the four sets of pull rods in this quantitative weighing and packaging machine is fixed, and it can only fix packaging bags of fixed height. It is not suitable for packaging bags of different heights and has a small range of applications. Utility Model Content

[0006] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a high-precision quantitative weighing and packaging machine that can clamp and fix packaging bags of different heights.

[0007] This utility model provides a high-precision quantitative weighing and packaging machine, comprising:

[0008] The feeding assembly includes a top-opening feed hopper with a discharge pipe connected to the bottom of the feed hopper for supplying material;

[0009] The fixing component, located below the feeding component, includes an outer mounting ring and an inner mounting ring arranged coaxially in the same horizontal plane. Multiple sets of crossbars are evenly arranged along the circumference between the outer mounting ring and the inner mounting ring. Telescopic components are slidably connected to the crossbars along their length. The telescopic components can extend and retract in the vertical direction. The top end of the telescopic components is provided with fasteners for fixed connection with the crossbars, and the bottom end is provided with clamping components for clamping and fixing the bag openings of packaging bags of different heights.

[0010] A weighing component, located below the fixing component, is used to weigh the packaging bags containing materials.

[0011] Furthermore, the fixing component also includes a guide hopper, which is disposed on the mounting inner ring and located directly below the outlet end of the discharge pipe.

[0012] Furthermore, the telescopic component includes a first rod, a second rod, and elastic fasteners. The second rod is hollow inside with its opening facing upwards. The top end of the first rod is slidably connected to the crossbar, and the bottom end is slidably fitted inside the second rod. A fixing plate is fixedly installed at the top end of the second rod. A through hole is opened in the center of the fixing plate for the first rod to pass through. Two sets of elastic fasteners are symmetrically arranged on the fixing plate about the through hole to fix the first rod and the second rod in place.

[0013] Furthermore, the top of the fixing plate is symmetrically provided with two sets of first sliding grooves about the through hole one. The elastic fixing member includes a first slider that is slidably connected to the first sliding groove. An arc-shaped fixing block is fixedly provided on one side of the first slider near the through hole one, and a first spring is fixedly connected on the other side. Multiple arc-shaped grooves are provided on the outer wall of the first rod along its length direction. The arc-shaped fixing block matches the arc-shaped grooves.

[0014] Furthermore, the top of the first rod body is provided with a second through hole that extends horizontally and a third through hole that extends vertically. The second through hole and the third through hole are connected. The crossbar passes through the second through hole, and the top of the crossbar is provided with a plurality of threaded holes along its length. The fastener passes through the third through hole and is threadedly connected to the corresponding threaded hole.

[0015] Furthermore, the clamping component includes a mounting box, a fixed clamping plate, and a sliding clamping plate. The mounting box is fixedly connected to the bottom end of the second rod. A second slider is slidably disposed inside the mounting box. A pressing plate is fixedly disposed on one side of the second slider, and a second spring is fixedly connected to the other side. The fixed clamping plate is fixedly connected to the bottom of the mounting box. The sliding clamping plate is fixedly connected to the second slider. The second spring can push the sliding clamping plate to move in a direction closer to or away from the fixed clamping plate.

[0016] Furthermore, a slot is provided on the side of the fixed clamping plate near the sliding clamping plate, and a tooth is provided on the side of the sliding clamping plate near the fixed clamping plate, and the slot matches the slot.

[0017] Furthermore, the weighing assembly includes a platform, and a weighing sensor is provided at the bottom of the platform.

[0018] Furthermore, it also includes a base, on which the feeding assembly, the fixing assembly, and the weighing assembly are all disposed.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] (1) The fixing component of this utility model includes an outer mounting ring, an inner mounting ring, a crossbar, a telescopic component, and a clamping component. Multiple sets of crossbars are evenly arranged along the circumference between the outer mounting ring and the inner mounting ring. A telescopic component is slidably connected on the crossbar. A clamping component is provided at the bottom end of the telescopic component. When fixing the bag opening of the packaging bag, the telescopic component can be slid horizontally to drive multiple sets of clamping components to slide horizontally, thereby clamping and fixing the bag opening of the packaging bag through the clamping component, avoiding the spillage of materials due to the small bag opening. In addition, this application can also drive the clamping component to move vertically through the extension and retraction of the telescopic component, thereby adjusting the height of the clamping component, so that it can clamp and fix the bag opening of packaging bags of different heights, thus expanding its application scope.

[0021] (2) The first rod of this utility model is slidably connected to the crossbar. The first rod can be pushed to slide along the length of the crossbar by manual operation to complete the adjustment of the horizontal position of the clamping part. This eliminates the need for multiple drive motors and reduces the investment cost of the equipment.

[0022] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0023] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a top view of the fixing component in this utility model;

[0026] Figure 3 This is a schematic diagram of the telescopic component in this utility model;

[0027] Figure 4 This is a top view of the elastic fastener in this utility model.

[0028] Figure 5 for Figure 1 Enlarged view of point A in the middle;

[0029] Figure 6 This is a top view of the mounting box in this utility model.

[0030] The diagram shows: 1. Base; 2. Feeding assembly; 3. Fixing assembly; 4. Weighing assembly.

[0031] 11. First mounting bracket; 12. Second mounting bracket;

[0032] 21. Feed box; 22. Discharge pipe; 23. Guide hopper;

[0033] 31. Install outer ring; 32. Install inner ring; 33. Crossbar; 34. Telescopic component; 35. Clamping component; 36. Guide hopper;

[0034] 41. Placement platform; 42. Weighing sensor;

[0035] 331. Threaded hole;

[0036] 341. First rod; 342. Second rod; 343. Elastic fastener; 344. Fixing plate;

[0037] 351. Mounting box; 352. Fixing clamp; 353. Sliding clamp; 354. Second slider; 355. Pressing plate;

[0038] 3411, Arc-shaped groove; 3412, Two through holes;

[0039] 3431, First slider; 3432, Arc-shaped fixing block; 3433, First spring; 3434, Toggle block;

[0040] 3441. Through hole one. Detailed Implementation

[0041] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0042] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] Please refer to Figures 1-6 This utility model provides a high-precision quantitative weighing and packaging machine, including a base 1, a feeding component 2, a fixing component 3, and a weighing component 4, all of which are mounted on the base 1; wherein,

[0044] The feeding assembly 2 includes a feeding box 21 with an open top, and a discharge pipe 22 connected to the bottom of the feeding box 21 for supplying materials; specifically, a first mounting bracket 11 is fixedly installed on the base 1, the feeding box 21 is fixedly installed on the first mounting bracket 11, and a valve is installed on the discharge pipe 22 for automatically closing after the weight of the material in the packaging bag reaches the standard.

[0045] The fixing component 3 is located below the feeding component 2 and includes an outer mounting ring 31 and an inner mounting ring 32 arranged coaxially in the same horizontal plane. Multiple sets of crossbars 33 are evenly arranged circumferentially between the outer mounting ring 31 and the inner mounting ring 32. A telescopic member 34 is slidably connected to the crossbar 33 along its length. The telescopic member 34 can extend and retract in the vertical direction. The top end of the telescopic member 34 is provided with a fastener for fixed connection with the crossbar, and the bottom end is provided with a clamping member 35 for clamping and fixing the bag opening of packaging bags of different heights. Specifically, a second mounting frame 12 is also fixedly installed on the base 1, and the outer mounting ring 31 is fixedly installed on the second mounting frame 12.

[0046] The weighing component 4 is located below the fixing component 3 and is used to weigh the packaging bags containing materials.

[0047] In this embodiment, before quantitatively weighing and packaging the material, the height position of the clamping member 35 is adjusted according to the height of the packaging bag. Specifically, the height of the clamping member 35 is adjusted by means of the telescopic function of the telescopic member 34.

[0048] During quantitative weighing and packaging, the packaging bag is placed on the weighing component 4. Then, multiple clamping parts 35 are used to clamp the corresponding positions of the bag opening. The position of the clamping parts 35 in the horizontal plane is then manually adjusted to open the bag opening. During this process, the clamping position of the clamping parts 35 on the bag opening can be manually adjusted at any time to achieve a better opening effect. Subsequently, the position of the telescopic part 34 is fixed by fasteners to prevent the clamping parts 35 from sliding freely. The material falls into the packaging bag through the feed box 21 and the discharge pipe 22, and the quantitative weighing of the material is completed by the weighing component 4 at the bottom.

[0049] This application uses a clamping member 35 to clamp and fix the opening of the packaging bag, preventing the material from spilling out due to poor bag opening fixation. Furthermore, this application uses the telescopic member 34 to extend and retract, causing the clamping member 35 to move vertically, thereby adjusting the height of the clamping member 35 so that it can clamp and fix the opening of packaging bags of different heights, thus expanding its application range.

[0050] In a preferred embodiment, such as Figure 1 As shown, the fixing component 3 also includes a guide hopper 36, which is disposed on the mounting inner ring 32 and located directly below the outlet end of the discharge pipe 22.

[0051] In this embodiment, the guide hopper 36 plays an auxiliary guiding role, which can better guide the material into the packaging bag and prevent the material from spilling out;

[0052] It should be noted that external threads can also be provided on the bottom outer wall of the guide hopper 36, and an extension tube can be installed at the bottom of the guide hopper 36 via the threaded connection. When the height of the packaging bag is low, the extension tube can help the material fall into the packaging bag more effectively, preventing spillage. The length of the extension tube can be selected according to actual usage requirements.

[0053] In a preferred embodiment, such as Figure 1 , Figure 3 and Figure 4 As shown, the telescopic component 34 includes a first rod 341, a second rod 342, and an elastic fixing component 343. The second rod 342 is hollow inside and the opening faces upward. The top end of the first rod 341 is slidably connected to the crossbar 33, and the bottom end is slidably sleeved inside the second rod 342. A fixing plate 344 is fixedly installed at the top end of the second rod 342. A through hole 3441 for the first rod 341 to pass through is opened in the center of the fixing plate 344. Two sets of elastic fixing components 343 are symmetrically arranged on the fixing plate 344 about the through hole 3441 to fix the first rod 341 and the second rod 342.

[0054] In this embodiment, the first rod 341 is slidably sleeved inside the second rod 342. The overall length of the telescopic member can be adjusted by pulling the second rod 342 along the length direction of the first rod 341. After adjustment, the position of the second rod 342 is locked by the elastic fixing member 343, thereby realizing the height adjustment of the clamping member 35.

[0055] Preferred, such as Figure 3 and Figure 4As shown, the top of the fixing plate 344 is symmetrically provided with two sets of first sliding grooves about the through hole 3441. The elastic fixing member 343 includes a first slider 3431 that is slidably connected to the first sliding groove. An arc-shaped fixing block 3432 is fixedly provided on one side of the first slider 3431 near the through hole 3441, and a first spring 3433 is fixedly connected on the other side. Multiple arc-shaped grooves 3411 are provided on the outer wall of the first rod 341 along its length direction. The arc-shaped fixing block 3432 matches the arc-shaped grooves 3411.

[0056] In this embodiment, a toggle block 3434 is provided on the top of the first slider 3431 to facilitate manual operation of the arc of the first slider 3431;

[0057] Adjust the telescopic length of the telescopic component 34 by moving the actuating block 3434 in a direction away from each other, causing the first spring 3433 to be squeezed and the arc-shaped fixing block 3432 to be pulled out of the arc-shaped groove 3411. Then, pull down the second rod 342 and adjust it to the appropriate position. Release the actuating block 3434, and the elastic force of the first spring 3433 will push the arc-shaped fixing block 3432 into the corresponding arc-shaped groove 3411 and fix it again, thus completing the adjustment of the telescopic length of the telescopic component 34.

[0058] In a preferred embodiment, such as Figure 2 and Figure 3 As shown, the top of the first rod 341 has a transverse through hole 2 3412 and a longitudinal through hole 3. The through hole 2 3412 is connected to the through hole 3. The crossbar 33 passes through the through hole 2 3412, and the top of the crossbar 33 has multiple threaded holes 331 along its length. Fasteners pass through the through hole 3 and are threadedly connected to the corresponding threaded holes 331.

[0059] In this embodiment, the crossbar 33 passes through the second through hole 3412, so that the first rod 341 can move along the length direction of the crossbar 33;

[0060] When it is necessary to adjust the position of the clamping member 35 on the horizontal plane, first remove the fastener, select the fastening nut, then manually slide the first rod 341, move the first rod 341 to the appropriate position, insert the fastening nut into the through hole three, and fix the fastening nut to the crossbar 33 through the threaded connection to complete the locking of the first rod 341 and prevent the clamping member 35 from moving at will during the loading process.

[0061] The structure of this application is simpler, making it easier to adjust the horizontal position of the clamping part 35 without the need for a drive motor, thus simplifying the equipment structure and reducing equipment investment costs.

[0062] In a preferred embodiment, such as Figure 5 and Figure 6As shown, the clamping member 35 includes a mounting box 351, a fixed clamping plate 352, and a sliding clamping plate 353. The mounting box 351 is fixedly connected to the bottom end of the second rod 32. A second slider 354 is slidably disposed inside the mounting box 351. A pressing plate 355 is fixedly disposed on one side of the second slider 351, and a second spring is fixedly connected to the other side. The fixed clamping plate 352 is fixedly connected to the bottom of the mounting box 351. The sliding clamping plate 353 is fixedly connected to the second slider 354. The second spring can push the sliding clamping plate 353 to move in the direction of approaching or moving away from the fixed clamping plate 352.

[0063] In this embodiment, when clamping the opening of the packaging bag, pressing the pressing plate 355 can compress the second spring, thereby moving the sliding clamp 353 away from the fixed clamp 352. After placing the bag opening between the fixed clamp 352 and the sliding clamp 353, the pressing plate 355 is released, and the elastic force of the second spring causes the sliding clamp 353 to fit tightly against the fixed clamp 352, which is used to fix the position of the bag opening.

[0064] Preferably, a slot is provided on the side of the fixed clamping plate 352 near the sliding clamping plate 353, and a tooth is provided on the side of the sliding clamping plate 353 near the fixed clamping plate 352, and the slots match each other.

[0065] Specifically, the design of the card slots increases friction and improves the clamping effect.

[0066] It should be noted that the clamping component 35 can also be replaced with other clamping clips that can achieve the same clamping effect.

[0067] In a preferred embodiment, such as Figure 1 As shown, the weighing assembly 4 includes a platform 41, and a weighing sensor 42 is disposed at the bottom of the platform 41. Specifically, quantitative weighing is achieved through the weighing sensor 42, which can also be connected to a display screen to display the weighing result on the screen.

[0068] Working principle:

[0069] During quantitative weighing and packaging, the packaging bag is placed on the weighing component 4. Then, multiple clamping parts 35 are used to clamp the corresponding positions of the bag opening. The position of the clamping parts 35 in the horizontal plane is then manually adjusted to open the bag opening. During this process, the clamping position of the clamping parts 35 on the bag opening can be manually adjusted at any time to achieve a better opening effect. Subsequently, the position of the telescopic part 34 is fixed by fasteners to prevent the clamping parts 35 from sliding freely. The material falls into the packaging bag through the feed box 21 and the discharge pipe 22, and the quantitative weighing of the material is completed by the weighing component 4 at the bottom.

[0070] This application uses a clamping member 35 to clamp and fix the opening of the packaging bag, preventing material spillage due to poor bag opening fixation. Furthermore, the extension and retraction of the telescopic member 34 causes the clamping member 35 to move vertically, thereby adjusting the height of the clamping member 35. This allows it to clamp and fix the opening of packaging bags of different heights, expanding its applicability. Moreover, this application eliminates the need for a drive motor to adjust the horizontal position of the clamping member 35, simplifying the equipment structure and reducing equipment investment costs.

[0071] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0072] In the description of this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high-precision quantitative weighing and packaging machine, characterized in that, include: The feeding assembly (2) includes a top-opening feeding box (21), the bottom of which is connected to a discharge pipe (22) for supplying materials; The fixing component (3) is located below the feeding component (2) and includes an outer mounting ring (31) and an inner mounting ring (32) located on the same horizontal plane and coaxially arranged. Multiple sets of crossbars (33) are evenly arranged between the outer mounting ring (31) and the inner mounting ring (32) along their circumference. A telescopic component (34) is slidably connected to the crossbar (33) along its length direction. The telescopic component (34) can extend and retract in the vertical direction. The top end of the telescopic component (34) is provided with a fastener for fixed connection with the crossbar (33), and the bottom end is provided with a clamping component (35) for clamping and fixing the bag openings of packaging bags of different heights. The weighing component (4), located below the fixing component (3), is used to weigh the packaging bag containing the material.

2. The high-precision quantitative weighing and packaging machine according to claim 1, characterized in that, The fixing component (3) also includes a guide hopper (36), which is disposed on the mounting inner ring (32) and located directly below the outlet end of the discharge pipe (22).

3. The high-precision quantitative weighing and packaging machine according to claim 1, characterized in that, The telescopic component (34) includes a first rod (341), a second rod (342), and an elastic fixing component (343). The second rod (342) is hollow inside and has an opening facing upward. The top end of the first rod (341) is slidably connected to the crossbar (33), and the bottom end is slidably sleeved inside the second rod (342). A fixing plate (344) is fixedly installed at the top end of the second rod (342). A through hole (3441) is opened in the center of the fixing plate (344) for the first rod (341) to pass through. Two sets of elastic fixing components (343) are symmetrically arranged on the fixing plate (344) about the through hole (3441) to fix the first rod (341) and the second rod (342) in place.

4. A high-precision quantitative weighing and packaging machine according to claim 3, characterized in that, The top of the fixing plate (344) is symmetrically provided with two sets of first sliding grooves about the through hole (3441). The elastic fixing member (343) includes a first slider (3431) that is slidably connected to the first sliding groove. An arc-shaped fixing block (3432) is fixedly provided on the side of the first slider (3431) near the through hole (3441), and a first spring (3433) is fixedly connected on the other side. A plurality of arc-shaped grooves (3411) are provided on the outer wall of the first rod (341) along its length direction. The arc-shaped fixing block (3432) matches the arc-shaped grooves (3411).

5. A high-precision quantitative weighing and packaging machine according to claim 3, characterized in that, The top of the first rod (341) is provided with a transverse through hole two (3412) and a longitudinal through hole three. The through hole two (3412) is connected to the through hole three. The crossbar (33) passes through the through hole two (3412), and the top of the crossbar (33) is provided with a plurality of threaded holes (331) along its length direction. The fastener passes through the through hole three and is threadedly connected to the corresponding threaded hole (331).

6. A high-precision quantitative weighing and packaging machine according to claim 3, characterized in that, The clamping member (35) includes a mounting box (351), a fixed clamping plate (352), and a sliding clamping plate (353). The mounting box (351) is fixedly connected to the bottom end of the second rod (342). A second slider (354) is slidably disposed inside the mounting box (351). A pressing plate (355) is fixedly disposed on one side of the second slider (354), and a second spring is fixedly connected to the other side. The fixed clamping plate (352) is fixedly connected to the bottom of the mounting box (351). The sliding clamping plate (353) is fixedly connected to the second slider (354). The second spring can push the sliding clamping plate (353) to move in a direction closer to or away from the fixed clamping plate (352).

7. A high-precision quantitative weighing and packaging machine according to claim 6, characterized in that, The fixed clamp (352) has a slot on the side near the sliding clamp (353), and the sliding clamp (353) has teeth on the side near the fixed clamp (352). The slot matches the slot.

8. A high-precision quantitative weighing and packaging machine according to claim 1, characterized in that, The weighing component (4) includes a placement platform (41), and a weighing sensor (42) is provided at the bottom of the placement platform (41).

9. A high-precision quantitative weighing and packaging machine according to claim 1, characterized in that, It also includes a base (1), on which the feeding component (2), the fixing component (3) and the weighing component (4) are all disposed.

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