Packaging bag vibration weighing device

Abstract

The utility model relates to a packaging bag vibration weighing device, which comprises a conveying device and a lifting frame, the conveying device comprises a conveying seat body and a conveying belt wound on the conveying seat body, the lifting frame is arranged between the upper layer and the lower layer of the conveying belt, a plurality of conveying belt carrier rollers for supporting the upper layer of the conveying belt are arranged on the conveying seat body, and the conveying belt carrier rollers are arranged on the conveying seat body. A lifting frame is arranged on the conveying seat body, a plurality of grating strips are arranged on the upper surface of the lifting frame, the grating strips and the conveying belt carrier rollers are arranged in a staggered mode, vibrators are arranged at the two ends of the lifting frame, the lifting frame is driven by a vibration reduction lifting device to ascend and descend, and a weighing sensor is arranged on the lower side of the conveying seat body. According to the utility model, the functions of vibration, weighing and conveying are integrated, the whole structure is more compact, the occupied area is greatly reduced, the conveying time of packaging bags is saved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of packaging equipment, and particularly to a vibrating weighing device for packaging bags. Background Art

[0002] In many fields, it is necessary to use packaging bags to package materials. Among them, how to accurately weigh the packaging bags after feeding is usually a key link in the entire packaging production line. If the feeding weight of the packaging bags is inaccurate, it will affect the quality of the subsequent finished products.

[0003] The patent of CN217918526U discloses a material quantitative packaging machine, the main body of which includes an electric bin and a weighing belt. When the device is in use, the electric bin will output materials, and the materials will fall onto the weighing belt. The weighing belt starts to weigh. When the weight is sufficient, the conveyor belt of the weighing belt starts and the electric bin stops feeding. Then the conveyor belt of the weighing belt will transport the materials into the packaging bag. However, due to the variety of materials, this method is prone to the problem of materials sticking to the weighing belt, which easily leads to inaccurate weight of the materials finally falling into the packaging bag. In addition, in order to ensure that the subsequent materials can be concentrated and loaded into the packaging bag without spilling, the device also specially sets structures such as fixed blocks and guiding strips, and the structure is relatively complex.

[0004] The patent of CN204415754U discloses an automatic weighing and packaging device for fine powdery materials. The device first uses a quantitative hopper to load the materials in the screw feeder into the packaging bag, and then the packaging bag falls on the belt conveyor, and the vibrator is started to vibrate the bottom of the packaging bag. After vibration, the packaging bag is sent to the belt scale by the belt conveyor for weighing. This device can improve the packaging efficiency, but the vibrator, belt conveyor and belt scale in this device are independently set devices, and each device needs to occupy a certain installation space. Therefore, the overall floor area of this device is relatively large. Content of the Utility Model

[0005] The purpose of the utility model is to provide a vibrating weighing device for packaging bags, which integrates the functions of vibration, weighing and conveying, and the overall structure is more compact, the floor area is greatly reduced, and at the same time, the conveying time of the packaging bags is saved, and the production efficiency is improved.

[0006] The purpose of the utility model is realized by the following technical solutions:

[0007] A vibrating weighing device for packaging bags, comprising a conveying device and a lifting frame. The conveying device includes a conveying seat body and a conveyor belt wound around the conveying seat body. An lifting frame is arranged between the upper layer and the lower layer of the conveyor belt. A plurality of conveyor belt rollers for supporting the upper layer of the conveyor belt are arranged on the conveying seat body. A plurality of grid bars are arranged on the upper surface of the lifting frame, and the grid bars and the conveyor belt rollers are arranged alternately. A vibrator is arranged on the lifting frame, and a weighing sensor is arranged on the lower side of the conveying seat body.

[0008] One end of the conveying seat body is provided with a driving belt roller, and the other end is provided with a driven belt roller with adjustable position. One end of the conveyor belt is wound around the driving belt roller, and the other end is wound around the driven belt roller. The driving belt roller is driven to rotate by a conveyor belt driving device arranged on the conveying seat body.

[0009] One end of the conveying seat body is provided with an adjusting bearing seat and an adjusting component. The two ends of the driven belt roller are respectively rotatably installed on the corresponding adjusting bearing seats, and the adjusting bearing seats are driven to move by the corresponding adjusting components.

[0010] A support beam is arranged on the lower side of the conveying seat body, and the support beam is supported by the weighing sensors on the corresponding side.

[0011] Each weighing sensor is installed on a mounting base. Each corner end of the lifting frame is respectively supported by a corresponding shock-absorbing lifting device, and the lower ends of each shock-absorbing lifting device are all installed on a lifting support base. The lifting support base passes through the lower side of the mounting base.

[0012] The advantages and positive effects of the utility model are as follows:

[0013] 1. The utility model integrates the functions of vibration, weighing and conveying, and the overall structure is more compact, greatly reducing the floor area. At the same time, it also saves the conveying time of packaging bags and improves the production efficiency.

[0014] 2. The grid bars on the upper side of the lifting frame of the utility model pass through the gaps between adjacent two conveyor belt rollers and lift the upper layer of the conveyor belt, thereby lifting the packaging bag. When the vibrators on the lower sides of both ends of the lifting frame apply vibration to the packaging bag, the vibration is mainly borne by the lifting frame, and the weighing sensors on the lower side of the conveying seat body will not be affected by the vibration, so the subsequent weighing accuracy will not be affected.

[0015] 3. The driven belt roller of the conveyor belt of the present utility model can be adjusted according to actual needs, so that the tension degree of the conveyor belt can be adjusted according to actual needs. On the one hand, this can ensure that the upper layer of the conveyor belt can be lifted to an appropriate height by the lifting frame and the upper layer of the conveyor belt can have an appropriate degree of slack, thereby maximizing the avoidance of the influence of vibration on the weighing sensor under the conveying seat body. On the other hand, when the lifting frame falls back, the conveyor belt can drive the packaging bag to move smoothly to the next process.

[0016] 4. The overall structural layout of the present utility model will not affect the movement of the conveyor belt on the one hand, and on the other hand, the overall floor area is only slightly larger than the floor area of the conveying device. However, compared with the way that each device is separately and independently arranged in the prior art, the floor area of the present utility model is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view of the present utility model,

[0018] Figure 2 is the top view of the present utility model,

[0019] Figure 3 is the schematic diagram of the use state of the present utility model.

[0020] Among them, 1 is the conveying device, 101 is the conveyor belt driving device, 102 is the conveyor belt roller, 103 is the conveyor belt, 104 is the conveying seat body, 1041 is the adjusting chute, 1042 is the support block, 105 is the adjusting bearing seat, 1051 is the adjusting screw, 1052 is the adjusting nut, 106 is the driven belt roller, 107 is the support beam, 2 is the lifting frame, 201 is the grid bar, 3 is the weighing sensor, 4 is the vibrator, 5 is the shock-absorbing lifting device, 6 is the mounting base, 7 is the lifting support base, 8 is the packaging bag, and 9 is the feeding port. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] As Figures 1 to 3 shown, the present utility model includes a conveying device 1 and a lifting frame 2. Among them, the conveying device 1 includes a conveying seat body 104 and a conveyor belt 103 wound around the conveying seat body 104. An lifting frame 2 is provided between the upper layer and the lower layer of the conveyor belt 103. A plurality of conveyor belt rollers 102 for supporting the upper layer of the conveyor belt 103 are provided on the conveying seat body 104. A plurality of grid bars 201 are provided on the upper surface of the lifting frame 2, and the grid bars 201 and the conveyor belt rollers 102 are arranged in an alternating manner. A vibrator 4 is provided on the lifting frame 2, and a weighing sensor 3 is provided under the conveying seat body 104. When the present utility model works, as Figure 3As shown, the packaging bag 8 is arranged on the conveyor belt 103 of the conveying device 1, and the upper opening of the packaging bag 8 is sleeved on the feeding port 9. When the lifting frame 2 rises, the grid bars 201 on the upper side of the lifting frame 2 pass through the gap between two adjacent conveyor belt rollers 102 and lift the upper layer of the conveyor belt 103. At this time, the packaging bag 8 is also lifted accordingly, and the vibrator 4 on the lifting frame 2 can apply vibration to the packaging bag 8 to make the materials inside the packaging bag 8 fully fall and be compacted. At the same time, since the vibration is mainly borne by the lifting frame 2 at this time, the weighing sensor 3 on the lower side of the conveying seat body 104 will not be affected by the vibration (in weighing technology, the influence of vibration on weighing measurement is relatively sensitive), so the subsequent weighing accuracy will not be affected. When the packaging bag 8 completes the feeding process, the lifting frame 2 descends and drives the packaging bag 8 to fall back onto the conveying device 1. At this time, the grid bars 201 on the upper side of the lifting frame 2 are separated from the upper layer of the conveyor belt 103, and the packaging bag 8 is only supported by the conveying seat body 104. The weighing sensor 3 on the lower side of the conveying seat body 104 detects and completes the weighing operation of the packaging bag 8. Among them, after the weighing sensor 3 starts to bear the weight, it measures the feeding weight. When the rated weight is reached, the feeding ends, and the conveyor belt 103 starts to send the packaging bag 8 to the next process. The utility model integrates the functions of vibration, weighing, and conveying, and the overall structure is more compact, greatly reducing the floor area. At the same time, it also saves the conveying time of the packaging bag and improves the production efficiency. The weighing sensor 3 is a well-known technology in the art and is a commercially available product. For example, a weighing sensor of the Tolido brand can be used.

[0023] As Figures 1 to 2 shown, in this embodiment, one end of the conveying seat body 104 is provided with a driving belt roller, and the other end is provided with a driven belt roller 106 with adjustable position. Among them, the driving belt roller is driven to rotate by a conveyor belt driving device 101 arranged on the conveying seat body 104, and then drives the conveyor belt 103 to rotate to achieve the conveying function. The conveyor belt driving device 101 can adopt devices such as a reduction motor and an electric drum according to needs.

[0024] As Figure 1 shown, in this embodiment, one end of the conveying seat body 104 is provided with an adjusting bearing seat 105 and an adjusting component. Among them, both ends of the driven belt roller 106 are respectively rotatably installed on the corresponding adjusting bearing seats 105, and the adjusting bearing seats 105 are driven to move by the corresponding adjusting components to adjust the position, and then adjust the position of the driven belt roller 106. In this way, the utility model can adjust the tension degree of the conveyor belt 103 according to actual needs. On the one hand, it can ensure that the upper layer of the conveyor belt 103 can be lifted to a suitable height by the lifting frame 2 and the upper layer of the conveyor belt 103 has a suitable degree of slack, so as to maximize the avoidance of the influence of vibration on the weighing sensor 3 on the lower side of the conveying seat body 104. On the other hand, when the lifting frame 2 falls back, the conveyor belt 103 can drive the packaging bag 8 to move smoothly to the next process.

[0025] As Figure 1 shown, in this embodiment, an adjustment chute 1041 and a support block 1042 are provided on the conveying seat body 104. The adjustment bearing seat 105 is installed on the conveying seat body 104 through fastening bolts and fastening nuts, and the fastening bolts pass through the corresponding adjustment chute 1041 and are fixedly connected to the fastening nuts. After loosening the fastening nuts, the adjustment bearing seat 105 can move. The adjustment assembly includes an adjustment screw 1051 and an adjustment nut 1052. The adjustment screw 1051 passes through the support block 1042 provided on the conveying seat body 104, and the adjustment nut 1052 is sleeved on the adjustment screw 1051 and is arranged on the side of the support block 1042 close to the adjustment bearing seat 105. By screwing the adjustment screw 1051, it can be driven to move and drive the adjustment bearing seat 105 to move. When the position of the adjustment bearing seat 105 is determined, the adjustment nut 1052 is screwed to be closely attached to the support block 1042 to assist in limiting the backward displacement of the adjustment bearing seat 105. The present utility model can also select other suitable adjustment structures for the driven belt roller 106 according to actual needs. For example, the adjustment bearing seat 105 can be directly driven to move by a linear driving device such as a cylinder to achieve the purpose of automatically adjusting the position of the driven belt roller 106.

[0026] As Figure 1 shown, in this embodiment, each weighing sensor 3 is installed on an installation base 6, a support beam 107 is provided on the lower side of the conveying seat body 104, and the support beam 107 is supported by the weighing sensors 3 on the corresponding side.

[0027] As Figures 1 to 2 shown, in this embodiment, each corner end of the lifting frame 2 is respectively supported by a corresponding shock-absorbing lifting device 5, and the lower ends of the shock-absorbing lifting devices 5 are all installed on a lifting support base 7. As Figure 2 shown, the lifting frame 2 passes through between the upper layer and the lower layer of the conveyor belt 103, and the lifting frame 2 only makes a lifting movement between the upper layer and the lower layer of the conveyor belt 103. At the same time, each shock-absorbing lifting device 5 is arranged outside the conveyor belt 103, and each vibrator 4 is also arranged outside the conveyor belt 103, so that the operation of the conveyor belt 103 will not be affected. In addition, as Figure 1As shown, the lifting support base 7 passes through the lower side of the mounting base 6. In this way, the overall floor area of the present utility model is only slightly larger than that of the conveying device 1. However, compared with the prior art in which each device is independently arranged, the floor area of the present utility model is greatly reduced. At the same time, the present utility model realizes multiple functions such as vibration, weighing, and conveying. The vibrator 4 is a well-known technology in the art and is a commercially available product. For example, the products of Jiangsu Xinfa Vibrating Machinery Co., Ltd. can be used. The shock-absorbing lifting device 5 can adopt linear moving devices such as air springs and cylinders according to needs. When the lifting frame 2 is supported by an air spring, the vibration of the lifting frame 2 can be directly absorbed by the air spring. When the lifting frame 2 is supported by devices such as cylinders, shock-absorbing blocks and other structures can be arranged at the connection positions at the upper or lower ends of the cylinder to play a role in absorbing vibration, so as to ensure that the vibration of the lifting frame 2 does not affect the weighing sensor 3.

[0028] The working principle of the present utility model is as follows:

[0029] When the present utility model works, as Figure 3 shown, the packaging bag 8 is arranged on the conveyor belt 103 of the conveying device 1. When the lifting frame 2 rises, the grid bars 201 on the upper side of the lifting frame 2 pass through the gap between two adjacent conveyor belt rollers 102 and lift the upper layer of the conveyor belt 103. At this time, the packaging bag 8 is also lifted accordingly. The vibrator 4 on the lifting frame 2 applies vibration to the packaging bag 8 to make the materials inside the packaging bag 8 fully fall and compact. At the same time, the vibration is mainly absorbed by the shock-absorbing lifting device 5 on the lower side of the lifting frame 2 (through the air spring or shock-absorbing block), and the vibration will not affect the weighing sensor 3. When the packaging bag 8 is filled with materials, the lifting frame 2 descends and drives the packaging bag 8 to fall back onto the conveying device 1. At this time, the lifting frame 2 is separated from the upper layer of the conveyor belt 103, and the packaging bag 8 is only supported by the conveying seat body 104. Then, the weighing sensor 3 under the conveying seat body 104 completes the weighing operation of the packaging bag 8. If the weight of the packaging bag 8 is qualified, the conveyor belt 103 will send the packaging bag 8 to the next process.

Claims

1. A packaging bag vibration weighing device, characterized in that: The invention comprises a conveying device (1) and a lifting frame (2), wherein the conveying device (1) comprises a conveying seat (104) and a conveying belt (103) wound on the conveying seat (104), a lifting frame (2) is arranged between the upper layer and the lower layer of the conveying belt (103), the conveying seat (104) is provided with a plurality of conveying belt rollers (102) supporting the upper layer of the conveying belt (103), the upper surface of the lifting frame (2) is provided with a plurality of grid bars (201), and the grid bars (201) and the conveying belt rollers (102) are arranged in an alternating manner, a vibrator (4) is arranged on the lifting frame (2), and the lifting frame (2) is driven to rise and fall by a vibration reduction lifting device (5), and a weighing sensor (3) is arranged on the lower side of the conveying seat (104).

2. The packaging bag vibration weighing device according to claim 1, characterized in that: The conveying seat (104) is provided with a driving belt roller at one end and a driven belt roller (106) whose position can be adjusted at the other end; one end of the conveying belt (103) is wound around the driving belt roller and the other end is wound around the driven belt roller (106); and the driving belt roller is driven to rotate by a conveying belt driving device (101) provided on the conveying seat (104).

3. The packaging bag vibration weighing device according to claim 2, characterized in that: An adjustment bearing seat (105) and an adjustment component are provided at one end of the conveying seat body (104), wherein both ends of the driven belt roller (106) are rotatably mounted on the corresponding adjustment bearing seat (105), and the adjustment bearing seat (105) is driven to move by the corresponding adjustment component.

4. The packaging bag vibration weighing device according to claim 1, characterized in that: A support beam (107) is provided on the lower side of the conveying seat body (104), and the support beam (107) is supported by a weighing sensor (3) on the corresponding side.

5. The packaging bag vibration weighing device according to claim 1, characterized in that: Each weighing sensor (3) is mounted on a mounting base (6), each corner end of the lifting frame (2) is supported by a corresponding vibration reduction lifting device (5), and the lower end of each vibration reduction lifting device (5) is mounted on a lifting support base (7), and the lifting support base (7) passes through the lower side of the mounting base (6).

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