Horizontal bag feeding type bagging machine

Abstract

The utility model discloses a horizontal bag feeding type bagging machine, and belongs to the technical field of veterinary drug preparation. The device comprises a rack, a clamping and conveying structure, a bag feeding structure, a bag opening structure, a primary discharging structure, a weighing structure, a secondary discharging structure, a sealing structure and a discharging structure, the weighing structure and the secondary discharging structure are located between the primary discharging structure and the sealing structure, are sequentially arranged from front to back, are located over the clamping and conveying structure and are located on the two stations respectively. The weighing structure comprises a fixing support, a hanging support, a weighing sensor between the fixing support and the hanging support and two pneumatic clamping jaws arranged on the hanging support side by side in the front-back direction, and the two pneumatic clamping jaws are driven synchronously and used for clamping the front end and the rear end of the top of a packaging bag respectively. The upper-layer clamping plate conveying mechanism at the corresponding station of the weighing structure is not provided with a clamping bulge; when the two pneumatic clamping jaws clamp a packaging bag, the clamping jaws on the two pneumatic clamping jaws clamp the packaging bag and are located above the adjacent clamping plate conveying mechanism on the upper layer.

Description

Technical Field

[0001] The utility model belongs to the technical field of veterinary medicine preparation, and particularly relates to a horizontal bag feeding type bagging machine. Background Art

[0002] Veterinary powder refers to a powdery preparation made by uniformly mixing a drug (traditional Chinese medicine or western medicine) with a suitable matrix. The drug in the veterinary powder should be dried and pulverized first. The matrix used in the veterinary powder includes carriers, diluents, etc. The matrix should be stable, have good fluidity, and be easy to mix with the drug, so as to achieve drug administration at a certain drug concentration. The preparation process of veterinary powder usually includes pulverization, drying, mixing, bagging, etc. A horizontal bag feeding type bagging machine is used in the bagging process.

[0003] For example, the patent with the application number CN201120202176.7 discloses a horizontal bag feeding type packaging machine, which includes a bag transporting trolley. The bag transporting trolley is provided with two longitudinal rods on the left and right and a longitudinal rod driving mechanism; around the bag transporting trolley, a bag loading station, a bag opening station, a feeding station, and a sealing station are arranged in sequence from back to front. The bag loading station is provided with a plurality of bag loading mechanism units, and each bag loading mechanism unit is adjacent and arranged in sequence in the front-back direction; the bag opening station is correspondingly provided with a plurality of bag opening mechanism units with equal numbers, and each bag opening mechanism unit is adjacent and arranged in sequence in the front-back direction; the feeding station is correspondingly provided with a plurality of feeding mechanism units with equal numbers, and each feeding mechanism unit is adjacent and arranged in sequence in the front-back direction; the sealing station is correspondingly provided with a plurality of sealing mechanism units with equal numbers, and each sealing mechanism unit is adjacent and arranged in sequence in the front-back direction.

[0004] For example, the patent with the application number CN201721780611.8 discloses a horizontal bag feeding type packaging machine, which includes a frame and a bag rack, a packaging bag transfer mechanism, a packaging bag clamping and feeding mechanism, a packaging bag mouth opening mechanism, a feeding mechanism, a sealing mechanism, and a discharging mechanism that are sequentially installed on the frame. The feeding mechanism includes a frame body, a front housing of the feeding channel, a pressing block, a pressing block driving mechanism, a rear housing of the feeding channel, a sealing mechanism for the outlet of the feeding channel, and a control mechanism. The frame body and the front housing of the feeding channel are fixedly connected. The bottom of the rear housing of the feeding channel is rotatably installed on the frame body. The rear housing of the feeding channel and the front housing of the feeding channel form a feeding channel. The pressing block driving mechanism is installed at the top of the frame body, the pressing block is installed on the pressing block driving mechanism, the control mechanism is installed on the frame body, and the control mechanism is connected to the rear housing of the feeding channel.

[0005] The patent with the application number CN202011122959.4 discloses a horizontal bag - feeding packaging machine, which includes a bag - taking device, a bag - sucking device, a loading device, a sealing device, and a bag - feeding device that runs through the entire packaging machine. The bag - taking device includes a bag - placing mechanism and a bag - grasping mechanism. The bag - placing mechanism is used for limiting and placing packaging bags, and the bag - grasping mechanism is used for grasping the packaging bags and moving them to designated positions; the bag - sucking device is used for separating the bag mouths of the packaging bags, the loading device is used for loading materials into the packaging bags, and the sealing device is used for closing the bag mouths.

[0006] The existing horizontal bag - feeding bagging machine includes a machine frame and the following structures thereon: a pinch - feeding structure, a bag - loading structure, a bag - opening structure, a primary feeding structure, a sealing structure, and a discharging structure, etc. The pinch - feeding structure is arranged in the front - to - back direction and can convey the packaging bag backward by one station. It includes an upper clamping plate conveying mechanism and a lower clamping plate conveying mechanism arranged side - by - side vertically. Both the upper clamping plate conveying mechanism and the lower clamping plate conveying mechanism include two clamping plates arranged side - by - side horizontally. At each station on the clamping plates, there are two clamping protrusions that can respectively clamp the front and rear ends of the packaging bag. The bag - loading structure, the bag - opening structure, the primary feeding structure, the sealing structure, and the discharging structure are arranged in sequence and are respectively located at different stations.

[0007] During the sales process of the product, it is found that the weight of a small amount of products is insufficient (such as 200g, 3 - 10g less). For consumers, the weight of the product should only be more, not less; if it is less, they will file a complaint. To address this issue, some manufacturers directly pack a few more grams. For example, for a 200g product, they pack 5g more. This not only increases the cost but also means over - dosage for medicines. Summary of the Utility Model

[0008] To solve the above problems, an embodiment of the present utility model provides a horizontal bag - feeding bagging machine. After the product is bagged by the primary feeding structure, it is weighed. If the weight is insufficient, a secondary feeding structure is used for supplementary feeding. The secondary feeding structure has a low feeding amount and high precision, can perform bagging slowly and precisely, ensure the weight of the product, avoid customer complaints, and there is no need to pack more products. The technical solution is as follows:

[0009] An embodiment of the present utility model provides a horizontal bag - feeding bagging machine. The bagging machine includes a frame and a pinch - feeding structure 1, a bag - loading structure, a bag - opening structure, a primary feeding structure 2, a sealing structure, and a discharging structure thereon. The pinch - feeding structure 1 is arranged in the front - to - rear direction and can convey the packaging bag 7 backward by one station. It includes an upper clamping plate conveying mechanism 11 and a lower clamping plate conveying mechanism 12 arranged side - by - side vertically. Both the upper clamping plate conveying mechanism 11 and the lower clamping plate conveying mechanism 12 include two clamping plates arranged side - by - side horizontally. At each station on the clamping plates, there are two clamping protrusions 13 that can respectively clamp the front and rear ends of the packaging bag 7. The bag - loading structure, the bag - opening structure, the primary feeding structure 2, the sealing structure, and the discharging structure are arranged in sequence and are respectively located at different stations. The bagging machine also includes a weighing structure 3 and a secondary feeding structure 4. The weighing structure 3 and the secondary feeding structure 4 are located between the primary feeding structure 2 and the sealing structure, are arranged in sequence from front to back, are located directly above the pinch - feeding structure 1, are respectively located on two stations, and are located directly above the packaging bag 7 at the corresponding station. The weighing structure 3 includes a fixed bracket 31, a suspension bracket 32, a load cell 33 between the fixed bracket 31 and the suspension bracket 32, and two pneumatic grippers 34 arranged side - by - side front - to - back on the suspension bracket 32. The fixed bracket 31 is arranged on the frame. The two pneumatic grippers 34 are driven synchronously and are respectively used to clamp the front and rear ends of the top of the packaging bag 7, and the two grippers are respectively located on the left and right sides of the packaging bag 7. The feeding amount of the secondary feeding structure 4 is less than that of the primary feeding structure 2. At the corresponding station of the weighing structure 3, the upper clamping plate conveying mechanism 11 is not provided with clamping protrusions 13. When the two pneumatic grippers 34 clamp the packaging bag 7, the grippers thereon clamp the packaging bag 7 and are located adjacent to the upper part of the upper clamping plate conveying mechanism 11.

[0010] Among them, in the embodiment of the present utility model, the primary feeding structure 2, the weighing structure 3, the secondary feeding structure 4, and the sealing structure are located on the same straight line and are respectively located on four adjacent stations, and the lower ends of the primary feeding structure 2 and the secondary feeding structure 4 are flush.

[0011] Among them, in the embodiment of the present utility model, the upper clamping plate conveying mechanism 11 is used to clamp the packaging bag 7. The lower clamping plate conveying mechanism 12 can reciprocate back and forth in the front - to - rear direction and is used to clamp the packaging bag 7 and then convey the packaging bag 7 backward by one station. The clamping protrusions 13 are arranged in the left - to - right direction.

[0012] Furthermore, a storage bin 5 is provided at the top of the frame in the embodiment of the present utility model. The bottom of the storage bin 5 is respectively connected to the top of the primary feeding structure 2 and the top of the secondary feeding structure 4 through two horizontal screw feeders 6.

[0013] Among them, the lower parts of the primary feeding structure 2 and the secondary feeding structure 4 in the embodiments of the present utility model are both screw feeding structures arranged vertically, and the lower end of the screw feeding structure gradually becomes smaller from top to bottom; an air-operated vibrator 8 is provided on the outer wall of the screw feeding structure of the secondary feeding structure 4.

[0014] Preferably, in the embodiments of the present utility model, a long hole is provided on the fixed bracket 31 in the vertical direction, and a locking bolt is provided in the long hole, and the locking bolt locks and fixes the fixed bracket 31 on the frame.

[0015] Preferably, the suspension bracket 32 in the embodiments of the present utility model includes a slide bar arranged in the front-back direction and two slide plates arranged side by side in the front-back direction and capable of being adjusted back and forth on the slide bar; the middle of the slide bar is connected to the fixed bracket 31 through a weight sensor 33; the two slide plates are respectively located in front of and behind the weight sensor 33 and are both arranged in the left-right direction, and two pneumatic grippers 34 are respectively fixed to the lower sides of the two slide plates.

[0016] The beneficial effects brought by the technical solution provided by the embodiments of the present utility model are as follows: The embodiments of the present utility model provide a horizontal bagging machine with a feeding bag. After the products are bagged by the primary feeding structure, they are weighed. If the weight is insufficient, the secondary feeding structure is used for supplementary feeding. The feeding amount of the secondary feeding structure is low and the precision is high. It can feed slowly (the residence time at each station is the same, and the feeding amount of the secondary feeding structure is less than 5% of the product weight, and it can feed slowly to improve the precision) and precisely (due to the small amount, a smaller structure is used, and the smaller structure has relatively higher precision) for bagging, ensuring the weight of the product, avoiding customer complaints, and there is no need to overfill the product. Description of the Drawings

[0017] Figure 1 is a partial structural schematic diagram of the horizontal bagging machine with a feeding bag provided by the embodiments of the present utility model;

[0018] Figure 2 is Figure 1 a structural schematic diagram during weighing;

[0019] Figure 3 is a top view of the weighing structure.

[0020] In the figure: 1 clamping and conveying structure, 2 primary feeding structure, 3 weighing structure, 4 secondary feeding structure, 5 storage bin, 6 horizontal screw feeder, 7 packaging bag, 8 air-operated vibrator;

[0021] 11 upper clamping plate conveying mechanism, 12 lower clamping plate conveying mechanism, 13 clamping protrusion

[0022] 31 fixed bracket, 32 suspension bracket, 33 weight sensor, 34 pneumatic gripper. Detailed Embodiments

[0023] To make the objectives, technical solutions, and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] Embodiment 1

[0025] Refer to Figures 1-3 , Embodiment 1 provides a horizontal bag-feeding bagging machine, which includes a machine frame and a pinch conveyor structure 1, a bag loading structure, a bag opening structure, a primary feeding structure 2, a weighing structure 3, a secondary feeding structure 4, a sealing structure, and a discharging structure, etc. on it. The bag loading structure, the bag opening structure, the primary feeding structure 2, the weighing structure 3, the secondary feeding structure 4, the sealing structure, and the discharging structure are arranged in sequence from front to back, and are respectively located at different workstations.

[0026] Among them, the pinch conveyor structure 1 is used to convey the packaging bag 7 backward. The pinch conveyor structure 1 is arranged along the front-back direction, and it can convey the packaging bag 7 backward by one workstation. It includes an upper clamping plate conveyor mechanism 11 and a lower clamping plate conveyor mechanism 12 arranged side by side up and down, etc. The upper clamping plate conveyor mechanism 11 and the lower clamping plate conveyor mechanism 12 both include two clamping plates arranged side by side left and right (arranged along the front-back direction). The upper clamping plate conveyor mechanism 11 is used to clamp the packaging bag 7. The lower clamping plate conveyor mechanism 12 can reciprocate back and forth, and it is used to clamp the packaging bag 7 and then convey the packaging bag 7 backward by one workstation. The two clamping plates are respectively located on the left and right sides of the packaging bag 7, and they can move towards and away from each other, and they are both arranged along the front-back direction. On the clamping plates and at each workstation, there are two clamping protrusions 13 that can respectively clamp the front and rear ends of the packaging bag 7. The clamping protrusions 13 are arranged along the left-right direction. At each workstation (except the workstation corresponding to the weighing structure 3), there are eight clamping protrusions 13 (at the corresponding workstation, the upper clamping plate conveyor mechanism 11 has four clamping protrusions 13, and the lower clamping plate conveyor mechanism 12 has four clamping protrusions 13); at the workstation corresponding to the weighing structure 3, there are only four clamping protrusions 13. The upper clamping plate conveyor mechanism 11 at the workstation corresponding to the weighing structure 3 does not have clamping protrusions 13, and the lower clamping plate conveyor mechanism 12 at the workstation corresponding to the weighing structure 3 has four clamping protrusions 13. When two pneumatic grippers 34 clamp the packaging bag 7, the grippers on them clamp the packaging bag 7 and are located adjacent above the upper clamping plate conveyor mechanism 11 to act as the clamping protrusions 13 on the upper clamping plate conveyor mechanism 11. At this time, the packaging bag 7 is suspended. The structure of the pinch conveyor structure 1 can refer to the description of the application number CN202210046528.7 (corresponding to the conveyor structure).

[0027] Among them, in the embodiment of the present utility model, the primary feeding structure 2, the weighing structure 3, the secondary feeding structure 4, and the sealing structure are on the same straight line and are respectively located on four adjacent workstations. The primary feeding structure 2, the weighing structure 3, and the secondary feeding structure 4 are all directly above the clamping and conveying structure 1 and are directly above the packaging bag 7 at the corresponding workstation. The lower ends of the primary feeding structure 2 and the secondary feeding structure 4 are flush. The lower parts of the primary feeding structure 2 and the secondary feeding structure 4 are both screw feeding structures arranged vertically. The lower end of the screw feeding structure (specifically the outer shell) gradually becomes smaller from top to bottom to form a tapered opening. An air vibrator 8 is provided on the outer wall (above the tapered opening) of the screw feeding structure of the secondary feeding structure 4. The feeding amount of the secondary feeding structure 4 is very small, so the feeding time is very short. The residence time at each workstation is the same. After the feeding is completed, the air vibrator 8 has time to send the products remaining at the discharge port of the secondary feeding structure 4 into the packaging bag 7.

[0028] Among them, the weighing structure 3 includes a fixed bracket 31, a suspension bracket 32, a weight sensor 33 between the fixed bracket 31 and the suspension bracket 32, and two pneumatic grippers 34 arranged side by side front and back on the suspension bracket 32, etc. The fixed bracket 31 is arranged on the machine frame. The two pneumatic grippers 34 are synchronously driven and are respectively used to clamp the front and rear ends of the top of the packaging bag 7. They are basically directly above the clamping protrusions 13 at the corresponding ends on the lower clamping plate conveying mechanism 12. Two grippers that can move towards each other are arranged side by side at their lower ends. The two grippers are respectively located on the left and right sides of the packaging bag 7, and they move towards each other to clamp the packaging bag 7. The feeding amount (per unit time, the same below) of the secondary feeding structure 4 is less than that of the primary feeding structure 2, and its feeding accuracy is higher than that of the primary feeding structure 2. The structure of the secondary feeding structure 4 is basically the same as that of the existing primary feeding structure 2, but the specification is smaller and the accuracy is higher. Under normal circumstances, the weight of the products fed into the packaging bag 7 by the secondary feeding structure 4 is less than 5% of the total weight of the products, and it can be conveyed slowly and accurately.

[0029] Embodiment 2

[0030] Embodiment 2 provides a horizontal bag feeding type bagging machine, whose structure is basically the same as that of Embodiment 1. The difference is that: in this embodiment, the clamping and conveying structure 1 is successively provided with seven workstations from front to back, and the seven workstations respectively correspond to a bag loading structure, a bag opening structure, a primary feeding structure 2, a weighing structure 3, a secondary feeding structure 4, a sealing structure, and a discharging structure.

[0031] Embodiment 3

[0032] See Figures 1-2, Embodiment 2 provides a horizontal bag-feeding bagging machine, whose structure is basically the same as that of Embodiment 1, except that: at the top of the frame in this embodiment, there is a storage bin 5 (for storing products), and the bottom of the storage bin 5 is respectively connected to the top of the first feeding structure 2 and the top of the second feeding structure 4 through two horizontal screw feeders 6. The horizontal screw feeder 6 is horizontally arranged, and the storage bin 5 can be arranged above the weighing structure 3.

[0033] Embodiment 4

[0034] See Figures 1-3 , Embodiment 4 provides a horizontal bag-feeding bagging machine, whose structure is basically the same as that of Embodiment 1, except that: in this embodiment, the fixed bracket 31 can be adjusted up and down (and thus the pneumatic gripper 34 can be adjusted up and down), and the pneumatic gripper 34 can be adjusted back and forth to ensure that the packaging bag 7 is clamped and suspended and adapts to products of different specifications.

[0035] Specifically, a long hole is provided in the fixed bracket 31 in the vertical direction, and a locking bolt (arranged in the left-right direction) is provided in the long hole. The locking bolt locks and fixes the fixed bracket 31 on the frame. Loosen the locking bolt to adjust the fixed bracket 31 up and down.

[0036] Among them, the suspension bracket 32 includes a slide bar arranged in the front-back direction and two slide plates arranged side by side in the front-back direction and capable of adjusting back and forth on the slide bar, etc. The middle of the slide bar is connected to the fixed bracket 31 through a load cell 33. The two slide plates are respectively located in front of and behind the load cell 33, and they are both arranged in the left-right direction. One end of them close to the frame is slidably arranged on the slide bar through a slide seat and locked by a locking bolt. The two pneumatic grippers 34 are respectively fixed to the lower sides of the two slide plates. Loosen the locking bolt to adjust the pneumatic gripper 34 back and forth.

[0037] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A horizontal bag-feeding bag filling machine, comprising a frame and a clamping structure (1), a bag-loading structure, a bag-opening structure, a one-time unloading structure (2), a sealing structure and a discharging structure thereon; the clamping structure (1) is arranged in a front-to-back direction, and can convey the packaging bag (7) backward to one station, and comprises an upper clamping plate conveying mechanism (11) and a lower clamping plate conveying mechanism (12) arranged side by side up and down; the upper clamping plate conveying mechanism (11) and the lower clamping plate conveying mechanism (12) each comprise two clamping plates arranged side by side left and right, and two clamping protrusions (13) are arranged on the clamping plates and located at each station, which can respectively clamp the front and rear ends of the packaging bag (7); the bag-loading structure, the bag-opening structure, the one-time unloading structure (2), the sealing structure and the discharging structure are arranged in sequence and are respectively located at different stations, characterized in that The bagging machine further comprises a weighing structure (3) and a secondary material discharging structure (4); the weighing structure (3) and the secondary material discharging structure (4) are located between the primary material discharging structure (2) and the sealing structure, and are arranged in sequence from front to back, and are located directly above the clamping structure (1), and are respectively located at two workstations, and are located directly above the packaging bags (7) at the corresponding workstations; The weighing structure (3) comprises a fixed bracket (31), a hanging bracket (32), a weight sensor (33) between the fixed bracket (31) and the hanging bracket (32), and two pneumatic clamps (34) arranged side by side on the hanging bracket (32), wherein the fixed bracket (31) is arranged on a frame; the two pneumatic clamps (34) are synchronously driven and are respectively used to clamp the front and rear ends of the top of the packaging bag (7), and the two clamps are respectively located on the left and right sides of the packaging bag (7); the feeding amount of the secondary unloading structure (4) is less than the feeding amount of the primary unloading structure (2), and the upper clamping plate conveying mechanism (11) at the corresponding workstation of the weighing structure (3) is not provided with a clamping protrusion (13); when the two pneumatic clamps (34) clamp the packaging bag (7), the clamps thereon clamp the packaging bag (7) and are located adjacent to and above the upper clamping plate conveying mechanism (11).

2. The horizontal bag-feeding bagging machine according to claim 1, characterized in that: The primary material discharging structure (2), the weighing structure (3), the secondary material discharging structure (4) and the sealing structure are located on the same straight line and are respectively located on four adjacent workstations, and the lower ends of the primary material discharging structure (2) and the secondary material discharging structure (4) are flush.

3. The horizontal bag-feeding bagging machine according to claim 1, characterized in that: The upper clamping plate conveying mechanism (11) is used for clamping the packaging bag (7); the lower clamping plate conveying mechanism (12) can reciprocate forward and backward, and is used for clamping the packaging bag (7) and then conveying the packaging bag (7) backward to a workstation; the clamping protrusion (13) is arranged in the left and right directions.

4. The horizontal bag-feeding bagging machine according to claim 1, characterized in that: A material storage bin (5) is provided on the top of the frame, and the bottom of the material storage bin (5) is connected to the top of the primary material discharge structure (2) and the top of the secondary material discharge structure (4) respectively through two horizontal screw feeders (6).

5. The horizontal bag-feeding bagging machine according to claim 1, characterized in that: The lower parts of the primary feeding structure (2) and the secondary feeding structure (4) are both vertically arranged screw feeding structures, and the lower ends of the screw feeding structures gradually become smaller from top to bottom; a pneumatic vibrator (8) is provided on the outer wall of the screw feeding structure of the secondary feeding structure (4).

6. The horizontal bag-feeding bagging machine according to claim 1, characterized in that: The fixing bracket (31) is provided with an elongated hole in the vertical direction, and a locking bolt is provided in the elongated hole, and the locking bolt locks and fixes the fixing bracket (31) on the frame.

7. The horizontal bag-feeding bagging machine according to claim 6, characterized in that: The suspension bracket (32) includes a slide bar arranged in the front-to-back direction and two slide plates arranged side by side in the front-to-back direction and capable of being adjusted forward and backward on the slide bar; the middle part of the slide bar is connected to the fixed bracket (31) through a weight sensor (33); the two slide plates are respectively located in front of and behind the weight sensor (33) and are both arranged in the left-to-right direction, and two pneumatic clamps (34) are respectively fixed on the lower sides of the two slide plates.

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