Automatic weighing and bag opening device

Abstract

The utility model discloses an automatic weighing and bag opening device. The automatic weighing and bag opening device comprises a rack, a weighing part, a placing seat, an air suction part and an electric control mechanism, the weighing piece is arranged on the rack; the placing seat is arranged on the weighing part, the placing seat is cylindrical, and an air suction hole is formed in the inner wall of the placing seat; the air suction piece is arranged on the rack and is communicated with the air suction hole; the electric control mechanism is electrically connected with the weighing piece and the air suction piece. According to the device, the packaging bags are automatically opened and continuously fixed, automatic weighing is carried out, the labor intensity of operators is reduced, the automation degree of the device is improved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic bagging, in particular to an automatic weighing and bag-supporting device. Background Art

[0002] Plastic granule bagging refers to the process of packing plastic granules (usually the raw materials for plastic product production) into bags. The weight of the bagged plastic granules after packaging is consistent, which is convenient for production and sales.

[0003] However, the existing plastic granule bagging is generally manual bagging, that is, the operator performs manual operations such as taking bags, supporting bags, and bagging. And during the continuous feeding process when bagging, the operator needs to continuously organize the bags and maintain their shape upward to keep the position of the bags to prevent material leakage. At the same time, the operator also needs to observe the parameters of the weighing instrument. There are problems of high labor intensity, low overall efficiency, large errors, and easy occurrence of repeated operations, which affect the bagging efficiency. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the problems in the related technologies to some extent. For this reason, one of the purposes of the utility model is to provide an automatic weighing and bag-supporting device, which is used to realize automatic opening and continuous fixing of the packaging bag, and perform automatic weighing, reducing the labor intensity of the operator, improving the automation degree of the device, and improving the work efficiency.

[0005] An automatic weighing and bag-supporting device, the automatic weighing and bag-supporting device includes:

[0006] A frame;

[0007] A weighing member, the weighing member is arranged on the frame;

[0008] A placement seat, the placement seat is arranged on the weighing member, the placement seat is arranged in a cylindrical shape, and the inner wall of the placement seat is provided with air suction holes;

[0009] An air suction member, the air suction member is arranged on the frame and communicates with the air suction holes;

[0010] An electric control mechanism, the electric control mechanism is electrically connected to the weighing member and the air suction member.

[0011] Further, the number of the air suction holes provided on the placement seat is multiple, and the multiple air suction holes are arranged at intervals along the axial direction and the radial direction of the placement seat.

[0012] Further, the number of the air suction members is at least two, at least two air suction members are located on opposite sides of the placement seat, and at least two air suction members communicate with the multiple air suction holes.

[0013] Further, the automatic weighing and bag supporting device further includes a bag clamping mechanism, which includes a connecting frame and a clamping assembly. One end of the connecting frame is connected to the machine frame, and the other end extends above the placing seat. The clamping assembly includes a telescopic member and a clamping jaw. The fixed end of the telescopic member is connected to the other end of the connecting frame, and the movable end of the telescopic member is movably connected to the clamping jaw. The clamping jaw can move telescopically between the connecting frame and the placing seat.

[0014] Further, the telescopic member is an automatic retractable wire reel.

[0015] Further, the other end of the connecting frame is annular. The bag clamping mechanism further includes a slide rail, which is arranged on the side surface of the other end of the connecting frame facing the placing seat. The fixed end of the telescopic member is slidably connected to the slide rail.

[0016] Further, an identification opening is formed in the side wall of the placing seat. The automatic weighing and bag supporting device further includes an auxiliary mechanism, which is electrically connected to the electric control mechanism. The auxiliary mechanism includes a fixed frame, a first driving member and a supporting pad. One end of the fixed frame is connected to the machine frame, the first driving member is connected to the other end of the fixed frame, and the driving end of the first driving member is drivingly connected to the supporting pad to drive the supporting pad to move in the vertical direction. The supporting pad extends into the placing seat and correspondingly abuts against the identification opening.

[0017] Further, the cross-sectional shape of the supporting pad in the horizontal direction is arc-shaped.

[0018] Further, a plurality of rollers are further arranged on the bottom plate of the machine frame, and the plurality of rollers are arranged at intervals.

[0019] Further, a foot brake is movably connected to the roller, and the foot brake is used to fix or disengage the roller.

[0020] The above technical solutions provided by the embodiments of the present application have the following advantages compared with the prior art:

[0021] This device is provided with a placing seat. The inner wall of the placing seat is provided with suction holes, which are communicated with an external suction member. The suction holes can suck the inside of the placing seat. Place the bag in the placing seat and turn on the suction member, and the bag can be adsorbed through the suction holes. The adsorption opens the bag and has a fixing effect, reducing the labor intensity of the operator;

[0022] A weighing member is arranged at the bottom of the placing seat. After the bag is opened in the placing seat, it can be loaded. The weighing member can weigh the placing seat and the bag, realizing the effect of automatic weighing after the bag is supported;

[0023] The use of an electric control mechanism to control the weighing component and the air suction component can achieve the effects of controlling the opening and closing of the electric air suction component and giving a prompt after the weighing component reaches the preset weight, improving the automation degree of the device and the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings herein are incorporated into and form a part of this specification, showing embodiments consistent with the present utility model and, together with the specification, are used to explain the principles of the present utility model.

[0025] To more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the accompanying drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] In the accompanying drawings:

[0027] Figure 1 is a schematic structural diagram of an embodiment of the automatic weighing and bag supporting device of the present application;

[0028] Figure 2 is a front view of an embodiment of the automatic weighing and bag supporting device of the present application;

[0029] Figure 3 is a top view of an embodiment of the automatic weighing and bag supporting device of the present application;

[0030] Figure 4 is a front view of another embodiment of the automatic weighing and bag supporting device of the present application;

[0031] Figure 5 is a top view of another embodiment of the automatic weighing and bag supporting device of the present application.

[0032] Reference numerals: 1, automatic weighing and bag supporting device; 10, frame; 20, weighing component; 30, placement seat; 31, air suction hole; 33, identification port; 40, air suction component; 50, electric control mechanism; 60, bag clamping mechanism; 61, connecting frame; 63, clamping assembly; 631, telescopic member; 633, clamping jaw; 70, slide rail; 80, auxiliary mechanism; 81, fixing frame; 83, first driving member; 85, support pad; 90, roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0035] As Figure 1 - Figure 3 shown, an automatic weighing and bag-supporting device 1 provided by the present application includes: a frame 10, a weighing member 20, a placing seat 30, a suction member 40, and an electric control mechanism 50; the weighing member 20 is arranged on the frame 10; the placing seat 30 is arranged on the weighing member 20, the placing seat 30 is arranged in a cylindrical shape, and suction holes 31 are formed in the inner wall of the placing seat 30; the suction member 40 is arranged on the frame 10 and is communicated with the suction holes 31; the electric control mechanism 50 is electrically connected to the weighing member 20 and the suction member 40.

[0036] The inner wall of the placing seat 30 is provided with suction holes 31, and the suction holes 31 can be one or more. When there is one suction hole 31, it can be arranged along the radial direction of the inner wall of the placing seat 30, that is, one suction hole 31 adsorbs the circumferential outer surface of the bag placed in the placing seat 30, realizing the adsorption and close contact between the bag and the inner wall of the placing seat 30, achieving the effect of opening and maintaining the bag; when the number of suction holes 31 is multiple, the multiple suction holes 31 can be arranged on the inner side wall of the placing seat 30, arranged in multiple rows along the radial direction or multiple rows along the axial direction, and can also be arranged on the bottom wall of the placing seat 30, arranged in an array or in a ring on the bottom wall. The multiple suction holes 31 can achieve the simultaneous adsorption of multiple different positions of the bag. The suction holes 31 at the bottom have the effect of opening the bag and fixing the bottom, achieving the effect of opening and maintaining the opening of the bag.

[0037] The bag loading step of the automatic weighing and bag-supporting device 1 is as follows: Place the bag in the placing seat 30, align the edge of the bag opening with the opening of the placing seat 30, turn on the suction member 40, and the suction holes 31 adsorb to closely attach the bag to the inner wall of the placing seat 30, realizing the effect of opening and fixing the bag. Then, load the bag with materials and the weighing member 20 performs real-time weight detection. After reaching the preset weight, a prompt is given. After closing the feeding, the suction member 40 can be turned off, and then the bag is sealed and taken out.

[0038] It can be understood that the weighing member 20 can detect the weight of the placing seat 30, and can weigh the weight of the material in the bag after removing the weight of the placing seat 30 itself and the net weight of the bag, realizing accurate weighing.

[0039] Furthermore, a sealing member can be provided at the opening position of the placing seat 30, such as a rope, a cable tie, a sealing tape, a strap, etc., which facilitates the sealing operation after weighing to a preset weight and improves work efficiency.

[0040] In the detailed design of the automatic weighing and bag-supporting device 1, we further consider the convenience and stability of operation. A slidable support plate can be added to the inner bottom wall of the placing seat 30. The support plate can slide along the inner wall of the placing seat 30 to adjust the position of the support plate to adapt to packaging bags of different sizes. In addition, the support plate is provided with anti-slip textures to ensure that the packaging bag can be stably placed inside the placing seat 30 during the weighing process.

[0041] To improve the accuracy of the automatic weighing and bag-supporting device 1, a high-precision sensor is also provided on the weighing member 20. This sensor can real-time monitor the weight of the packaging bag placed on the placing seat 30 and transmit the data to the electric control mechanism 50. The electric control mechanism 50 then automatically judges whether the packaging bag reaches the set weight according to the preset threshold value.

[0042] In the design of the air suction member 40, an efficient and low-noise air suction pump is selected. This air suction pump can quickly and stably generate negative pressure, so that the packaging bag placed on the placing seat 30 is expanded under the action of the air suction holes 31. At the same time, in order to keep the air suction holes 31 clean, a detachable dust-proof net is also provided at the air suction holes 31, which is convenient for users to clean regularly.

[0043] Under the control of the electric control mechanism 50, a full-automatic weighing can also be set. Sensors can be provided on the inner wall of the placing seat 30. The user only needs to place the packaging bag to be weighed inside the placing seat 30. When the packaging bag is placed at a certain depth, the sensor can be triggered. The sensor is electrically connected to the electric control mechanism 50 and can transmit signals to the electric control mechanism 50. The electric control mechanism 50 will then automatically start the weighing and bag-supporting programs. When the packaging bag reaches the set weight, the electric control mechanism 50 will automatically stop the operation of the air suction pump and release the packaging bag from the placing seat 30. During the whole process, the user does not need to perform any manual operations, which greatly improves work efficiency and accuracy. Furthermore, the electric control mechanism 50 can also be electrically connected to the feeding bin. By controlling the feeding switch of the feeding bin through the electric control mechanism 50, when the packaging bag is placed inside the placing seat 30, the electric control mechanism 50 will automatically start the weighing and bag-supporting programs and can also open the discharge port of the feeding bin to start feeding; when the packaging bag reaches the set weight, the electric control mechanism 50 controls to close the discharge port of the feeding bin and automatically stops the operation of the air suction pump, and releases the packaging bag from the placing seat 30.

[0044] In summary, the automatic weighing and bag-supporting device 1 provided by this application not only has the advantages of convenient operation, good stability, high accuracy, etc., but also can realize full-automatic operation, bringing great convenience to users.

[0045] Further, the placement seat 30 is provided with a plurality of suction holes 31, and the plurality of suction holes 31 are arranged at intervals along the axial direction and radial direction of the placement seat 30. The plurality of suction holes 31 can be arranged on the inner side wall of the placement seat 30, arranged at intervals in the radial direction or in the axial direction, or arranged on the bottom wall of the placement seat 30, so as to realize the adsorption of different positions of the packaging bag and achieve the opening effect.

[0046] Further, the number of the suction members 40 is at least two, and at least two suction members 40 are located on opposite sides of the placement seat 30, and at least two suction members 40 are connected to multiple suction holes 31. The arrangement of at least two suction members 40 improves the suction force, and the arrangement on opposite sides, with one suction member 40 responsible for the suction holes 31 on one side, ensures that the suction force of the suction holes 31 on both sides is consistent, and thus the overall suction force remains balanced.

[0047] like Figure 4 - Figure 5 As shown, the present application provides an automatic weighing bag-supporting device 1, comprising: a frame 10, a weighing piece 20, a placement seat 30, an air suction piece 40, and an electric control mechanism 50; the weighing piece 20 is arranged on the frame 10; the placement seat 30 is arranged on the weighing piece 20, the placement seat 30 is arranged in a cylindrical shape, and an air suction hole 31 is opened on the inner wall of the placement seat 30; the air suction piece 40 is arranged on the frame 10 and connected to the air suction hole 31; the electric control mechanism 50 is electrically connected to the weighing piece 20 and the air suction piece 40.

[0048] Furthermore, the automatic weighing bag-supporting device 1 also includes a bag clamping mechanism 60, which includes a connecting frame 61 and a clamping assembly 63. One end of the connecting frame 61 is connected to the frame 10, and the other end extends to the top of the placement seat 30. The clamping assembly 63 includes a telescopic member 631 and a clamping claw 633. The fixed end of the telescopic member 631 is connected to the other end of the connecting frame 61, and the movable end of the telescopic member 631 is movably connected to the clamping claw 633. The clamping claw 633 can be movably retracted between the connecting frame 61 and the placement seat 30. The telescopic member 631 can be a spring cable, an automatic retracting reel, etc., which can realize the extension and retraction of the cable, and has a built-in spring or similar mechanism. When the cable is no longer under stress, it can be automatically reeled back into the reel. The connecting frame 61 is located above the placement seat 30, and the connecting frame 61 and the clamping claw 633 are connected by the telescopic member 631, so that the clamping claw 633 can move up and down. When the packaging bag is placed in the placement seat 30 , the clamping claws 633 can be pulled down and clamped at the edge of the opening between the packaging bag and the placement seat 30 to fix the edge of the packaging bag and further fix the packaging bag.

[0049] Further, the telescopic member 631 is an automatic retractable cord reel. The automatic retractable cord reel has an automatic retraction mechanism that allows the user to pull out the required length of the cable. After use, the cable can be automatically retracted, reducing cable clutter, saving space, and helping to keep the working environment tidy.

[0050] Further, the other end of the connecting frame 61 is annular. The bag clamping mechanism 60 further includes a slide rail 70. The slide rail 70 is provided on one side of the other end of the connecting frame 61 facing the placing seat 30. The fixed end of the telescopic member 631 is slidably connected to the slide rail 70. With the setting of the slide rail 70, the clamping assembly 63 can move on the connecting frame 61, and thus clamp different positions of the opening of the placing seat 30.

[0051] As Figure 4 - Figure 5 As shown in the figure, an automatic weighing and bag supporting device 1 provided by the present application includes: a frame 10, a weighing member 20, a placing seat 30, an air suction member 40, and an electric control mechanism 50; the weighing member 20 is provided on the frame 10; the placing seat 30 is provided on the weighing member 20. The placing seat 30 is provided in a cylindrical shape, and an air suction hole 31 is opened on the inner wall of the placing seat 30; the air suction member 40 is provided on the frame 10 and communicates with the air suction hole 31; the electric control mechanism 50 is electrically connected to the weighing member 20 and the air suction member 40.

[0052] Further, an identification port 33 is opened on the side wall of the placing seat 30. The automatic weighing and bag supporting device 1 further includes an auxiliary mechanism 80. The auxiliary mechanism 80 is electrically connected to the electric control mechanism 50. The auxiliary mechanism 80 includes a fixing frame 81, a first driving member 83, and a supporting pad 85. One end of the fixing frame 81 is connected to the frame 10, the first driving member 83 is connected to the other end of the fixing frame 81, and the driving end of the first driving member 83 is drivingly connected to the supporting pad 85 to drive the supporting pad 85 to move in the vertical direction. The supporting pad 85 extends into the placing seat 30 and correspondingly abuts against the identification port 33. The auxiliary mechanism 80 can descend to abut against the position of the identification port 33 of the placing seat 30, facilitating operations such as marking and labeling of the packaging bag by the operator, and flattening the inside of the packaging bag for easy operation.

[0053] Further, the cross-sectional shape of the supporting pad 85 in the horizontal direction is arc-shaped. The arc-shaped supporting pad is consistent with the inner wall of the placing seat 30 and the inner surface shape of the packaging bag, facilitating operations such as marking and labeling of the packaging bag by the operator, and flattening the inside of the packaging bag for easy operation.

[0054] Further, a plurality of rollers 90 are further provided on the bottom plate of the frame 10, and the plurality of rollers 90 are arranged at intervals. With the setting of the rollers 90, the device can move freely, enabling use at different positions.

[0055] Furthermore, the roller 90 is also movably connected with a foot brake, which is used to fix or disengage the roller 90. With the setting of the foot brake, when the device is moved to the corresponding position, after the foot brake is fixed, the rotation of the roller 90 can be fixed, thereby fixing the position of the device and realizing the positioning of the device.

[0056] It can be understood that the above embodiments only express the preferred embodiments of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, all equivalent transformations and modifications made to the scope of the claims of the present invention shall fall within the scope covered by the claims of the present invention.

Claims

1. An automatic weighing bag-holding device, characterized in that: include: frame; A weighing piece, the weighing piece is arranged on the frame; A placing seat, the placing seat is arranged on the weighing piece, the placing seat is arranged in a cylindrical shape, and an air suction hole is opened on the inner wall of the placing seat; An air suction member, the air suction member is arranged on the frame and connected to the air suction hole; An electric control mechanism is electrically connected to the weighing element and the air suction element.

2. The automatic weighing bag-opening device according to claim 1, characterized in that: The placement seat is provided with a plurality of the air suction holes, and the plurality of the air suction holes are arranged at intervals along the axial direction and the radial direction of the placement seat.

3. The automatic weighing bag-holding device according to claim 2, characterized in that: The number of the suction members is at least two, at least two of the suction members are located on two opposite sides of the placement seat, and at least two of the suction members are connected to a plurality of the suction holes.

4. An automatic weighing bag-opening device according to any one of claims 1 to 3, characterized in that: The automatic weighing bag-holding device also includes a bag clamping mechanism, which includes a connecting frame and a clamping assembly, one end of the connecting frame is connected to the frame, and the other end extends to the top of the placement seat, the clamping assembly includes a telescopic member and a clamping claw, the fixed end of the telescopic member is connected to the other end of the connecting frame, and the movable end of the telescopic member is movably connected to the clamping claw, and the clamping claw can be movably retracted and extended between the connecting frame and the placement seat.

5. The automatic weighing bag-holding device according to claim 4, characterized in that: The telescopic member is an automatic retractable cord reel.

6. The automatic weighing bag-holding device according to claim 4, characterized in that: The other end of the connecting frame is annular, and the bag clamping mechanism further comprises a slide rail, which is arranged on a side of the other end of the connecting frame facing the placement seat, and the fixed end of the telescopic member is slidably connected to the slide rail.

7. An automatic weighing bag-opening device according to any one of claims 1 to 3, characterized in that: A marking opening is provided on the side wall of the placement seat, and the automatic weighing bag-supporting device also includes an auxiliary mechanism, which is electrically connected to the electric control mechanism. The auxiliary mechanism includes a fixed frame, a first driving member and a support pad, one end of the fixed frame is connected to the frame, the first driving member is connected to the other end of the fixed frame, and the driving end of the first driving member is drivingly connected to the support pad to drive the support pad to move in a vertical direction, and the support pad extends into the placement seat and corresponds to the marking opening.

8. The automatic weighing bag-holding device according to claim 7, characterized in that: The horizontal cross-section of the support pad is arc-shaped.

9. An automatic weighing bag-opening device according to any one of claims 1 to 3, characterized in that: The bottom plate of the frame is also provided with a plurality of rollers, and the plurality of rollers are arranged at intervals.

10. The automatic weighing bag-opening device according to claim 9, characterized in that: The roller is also movably connected to a foot brake, and the foot brake is used to fix or detach the roller.

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