A bag feeding mechanism for a bagging machine

Abstract

The present invention discloses a bag feeding mechanism for a bagging machine, comprising a first paper feeding roller arranged below a bag storage box of the bagging machine near the bag outlet end, and a second paper feeding roller and a third paper feeding roller arranged in an upper and lower arrangement outside the bag outlet of the bag storage box; the first paper feeding roller, the second paper feeding roller, and the third paper feeding roller are linked by gears and / or a transmission belt, and the first paper feeding roller feeds the paper bag in the bag storage box that is in contact with the first paper feeding roller forward to between the second and third paper feeding rollers, and then the second and third paper feeding rollers feed the paper bag forward to the bagging position; the two ends of the first paper feeding roller are respectively hinged to one end of a rocker, the other end of the rocker abutting against the wheel surface of a cam. The bag feeding mechanism of the bagging machine of the present invention feeds the bag forward in two steps, effectively avoiding the situation in which the paper feeding roller inside the conventional bag storage box continuously feeds the bag forward, causing multiple bags to be discharged at a time, thereby ensuring the stable operation of the bagging machine.

Description

Technical Field

[0001] The present invention relates to the technical field of young fruit bagging, and particularly to a bag feeding mechanism of a bagging machine. Background Art

[0002] Young fruit bagging is mainly to prevent fruits from being attacked by birds, damaged by pests and diseases, and injured by wind, rain and sunlight during the growth process. At the same time, after the fruits are bagged, it can effectively isolate the erosion of environmental pollution on the fruits and prevent the fruits from being scratched by tree branches during the growth process. Bagging can produce a local greenhouse effect, keep the fruits at an appropriate humidity and temperature, increase the sweetness of the fruits, improve the luster of the fruits, increase the yield of the fruits, and shorten their growth period. At the same time, since no pesticides need to be applied during the growth process, the fruits have high quality and are pollution-free, thus meeting international standards.

[0003] With the continuous development of young fruit bagging technology, many types of bagging machines have also emerged on the market, and the bag conveying mechanisms on the bagging machines are also diversified. However, it is found in the actual operation process that the situation of transporting multiple bags at a time often occurs in the current bagging machines, which not only causes the bagging machine to be unable to complete the bag opening and bagging actions, but also easily causes the situation of bag jamming, thus seriously affecting the popularization and use of the bagging machine and the bagging efficiency. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies existing in the bag feeding mechanism of the existing bagging machine, and further provide a bag feeding mechanism of a bagging machine that can only transport one bag at a time.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A bag feeding mechanism of a bagging machine, which includes a first paper rubbing wheel disposed below the bag storage box of the bagging machine near the bag outlet end, a second paper rubbing wheel and a third paper rubbing wheel disposed up and down outside the bag outlet of the storage box, and the gap between the second paper rubbing wheel and the third paper rubbing wheel is adapted to rub a single paper bag forward; the first paper rubbing wheel, the second paper rubbing wheel, and the third paper rubbing wheel are linked by gears or / and transmission belts, and the first paper rubbing wheel rubs the paper bag in the storage box that is in contact with the first paper rubbing wheel forward to between the second paper rubbing wheel and the third paper rubbing wheel, and then the second paper rubbing wheel and the third paper rubbing wheel rub it forward to the bagging position; both ends of the first paper rubbing wheel are respectively hinged to one end of a swing rod, the middle of the swing rod is hinged to the side plate of the bagging machine, the other end of the swing rod abuts against the wheel surface of a cam, the cam is driven by a motor to rotate, when the maximum eccentric section of the cam wheel surface abuts against the swing rod, the first paper rubbing wheel is separated from the paper bag, and when the minimum eccentric section of the cam abuts against the swing rod, the first paper rubbing wheel abuts against the paper bag; a limiting plate for adjusting the size of the paper bag outlet gap is disposed at the paper bag outlet of the storage box.

[0007] Preferably, one end of the swing rod close to the cam is hinged to one end of the first connecting rod, the other end of the first connecting rod is hinged to one end of the second connecting rod, the middle part of the second connecting rod is hinged to the side plate of the bagging machine, the other end of the second connecting rod extends out of the bag storage box and is connected to the pressing block, the pressing block is arranged at the outlet of the bag storage box, and a guide groove for guiding the up-and-down movement of the pressing block is arranged on the side plate of the bagging machine.

[0008] Preferably, an elastic member is arranged on the pressing block, and the elastic member pulls the pressing block to make the swing rod elastically contact with the cam.

[0009] Preferably, a cutting knife or a contact part is arranged below the pressing block for disconnecting the continuous paper bags connected end to end.

[0010] Preferably, a semi-circular chamfer or an inclined chamfer is arranged on one side of the lower end of the limiting plate close to the inside of the bag storage box.

[0011] Preferably, a position sensor for detecting whether the paper bag is conveyed to the position between the second paper feeding roller and the third paper feeding roller is arranged on the frame of the bagging machine.

[0012] Advantages of the present invention:

[0013] The bag feeding mechanism of the bagging machine of the present invention feeds the bag forward in two steps, effectively avoiding the situation that multiple bags are taken out at one time caused by the continuous forward feeding of the paper feeding roller inside the traditional bag storage box, and ensuring the stable operation of the bagging machine. Description of the Drawings

[0014] In order to make the content of the present invention easier to be clearly understood, the following further describes the present invention in detail with reference to the drawings, wherein:

[0015] Figure 1 is the assembly structure schematic diagram of the bag feeding mechanism of the bagging machine and the bagging machine body of the present invention (schematic diagram of the internal structure of the bagging machine);

[0016] Figure 2 is the structural schematic diagram when the first paper feeding roller of the bag feeding mechanism of the bagging machine feeds the paper bag;

[0017] Figure 3 is the structural schematic diagram when the first paper feeding roller of the bag feeding mechanism of the bagging machine is separated from the paper bag.

[0018] The reference numerals in the drawings are represented as:

[0019] 31 - First paper feeding wheel; 32 - Second paper feeding wheel; 33 - Third paper feeding wheel; 34 - Swing rod; 35 - Cam; 36 - Motor; 37 - Paper bag; 38 - Limit plate; 39 - First connecting rod; 40 - Second connecting rod; 41 - Pressing block; 42 - Semi-circular chamfer. Detailed implementation mode

[0020] See Figures 1-3 , a paper bag feeding mechanism of a bagging machine, which includes a first paper feeding wheel 31 arranged below the bag storage box of the bagging machine near the bag outlet end, and a second paper feeding wheel 32 and a third paper feeding wheel 33 arranged vertically outside the bag outlet of the bag storage box. The gap between the second paper feeding wheel 32 and the third paper feeding wheel 33 is suitable for feeding a single paper bag forward ( Figure 1 The left side is the front direction); gears that mesh with each other are respectively arranged at both ends of the second paper feeding wheel 32 and the third paper feeding wheel 33. The first paper feeding wheel 31 is linked with the second paper feeding wheel 32 or the third paper feeding wheel 33 through a conveyor belt. When necessary, the rotational speeds of the first paper feeding wheel 31, the second paper feeding wheel 32, and the third paper feeding wheel 33 can be modulated by a speed difference through a reduction gear set. The first paper feeding wheel 31 feeds the paper bag in the bag storage box that is in contact with the first paper feeding wheel 31 forward to between the second paper feeding wheel 32 and the third paper feeding wheel 33, and then the second paper feeding wheel 32 and the third paper feeding wheel 33 cooperate with each other to feed it forward to the bagging position; both ends of the first paper feeding wheel 31 are respectively hinged to one end of a swing rod 34. The middle of the swing rod 34 is hinged to the side plate of the bagging machine. The other end of the swing rod 34 abuts against the cam surface of the cam 35. The cam 35 is driven by a motor 36. When the maximum eccentric section of the cam surface of the cam 35 abuts against the swing rod 34, the first paper feeding wheel 31 is separated from the paper bag 37 (see Figure 3 ), and when the minimum eccentric section of the cam 35 abuts against the swing rod 34, the first paper feeding wheel 31 abuts against the paper bag 37 (see Figure 2The bag outlet of the bag storage box is provided with a limit plate 38 for adjusting the gap size at the bag outlet. The bagging machine's bag feeding mechanism of the present invention hinges the first pickup roller to a rocker arm, thereby dividing the forward feeding of the paper bags into two independent steps. In the first step, the first pickup roller feeds the paper bags in the bag storage box forward until they reach the second and third pickup rollers. At this point, a position sensor is provided at this location to detect whether the paper bags have been delivered to their proper position. Once the position sensor detects that the paper bags have been delivered to their proper position, it sends an execution signal to the motor 36, which rotates to its maximum eccentricity, driving the rocker arm to swing, thereby driving the first pickup roller to separate from the paper bags 37. At this point, the paper bags 37 are no longer fed forward from the bag storage box, while the second and third pickup rollers work together to continue feeding the paper bags forward to the bagging position. The limit plate 38 adjusts the size of the bag outlet, ensuring that the gap at the outlet is sufficient to allow only one paper bag to be delivered at a time. This two-step bag feeding method avoids the traditional paper picking wheel always pushing the paper bags in the bag storage box forward, which easily causes multiple paper bags to be fed out at one time and the bags to be stuck.

[0021] In this embodiment, the end of the swing arm 34 near the cam 35 is hingedly connected to one end of a first connecting rod 39. The other end of the first connecting rod 39 is hingedly connected to one end of a second connecting rod 40. The middle portion of the second connecting rod 40 is hingedly connected to the side panel of the bagging machine. The other end of the second connecting rod 40 extends out of the bag storage box and is connected to a pressure block 41. The pressure block 41 is positioned at the outlet of the bag storage box. The side panel of the bagging machine is provided with a guide groove for guiding the upward and downward movement of the pressure block. The pressure block 41 may be provided with an elastic member, such as a tension spring or a torsion spring. This elastic member pulls the pressure block to elastically contact the swing arm 34 with the cam 35, thereby facilitating the return of the first pickup roller. Furthermore, by adjusting the distance between the pressure block and the lower plate surface (i.e., the gap between the paper bags and the paper bag passing through), the pressure block can also serve as a secondary barrier, intercepting excess paper bags exiting the bag outlet and preventing the forward conveyance of multiple paper bags, thus providing a secondary safety function.

[0022] In other embodiments, a cutter or abutment portion may be provided below the pressing block 41 to separate the continuous paper bags connected end to end, such as discontinuous paper bags (this embodiment preferably uses independent paper bags that can be stacked up and down and placed in a bag storage box).

[0023] In this embodiment, a semicircular chamfer 42 (or an inverted slope) is provided on the side of the lower end of the limiting plate 38 close to the interior of the bag storage box, so as to facilitate the forward conveyance of paper bags while preventing multiple bags from being produced each time.

[0024] The above specific embodiments only explain the technical solutions of the present invention in detail. The present invention is not limited to the above embodiments only. Those skilled in the art should understand that any improvements and substitutions based on the above principles and spirit on the basis of the present invention should be within the protection scope of the present invention.

Claims

1. A bag feeding mechanism of a bagging machine, characterized in that: It includes a first pickup roller arranged below the bag storage box of the bagging machine and close to the bag outlet end, a second pickup roller and a third pickup roller arranged on the outer side of the bag outlet of the bag storage box and arranged in an upper and lower manner, and the gap between the second pickup roller and the third pickup roller is suitable for rubbing and feeding a single paper bag forward; The first paper pickup wheel, the second paper pickup wheel and the third paper pickup wheel are linked by gears and / or transmission belts, and the first paper pickup wheel rubs the paper bag in the bag storage box that is in contact with the first paper pickup wheel forward to between the second paper pickup wheel and the third paper pickup wheel, and then the second paper pickup wheel and the third paper pickup wheel rub the paper bag forward to the bagging position; both ends of the first paper pickup wheel are respectively hinged to one end of a swing rod, the middle part of the swing rod is hinged to the side plate of the bagging machine, and the other end of the swing rod is in contact with the wheel surface of the cam, and the cam is driven to rotate by a motor, and when the maximum eccentric section of the cam wheel surface is in contact with the swing rod, the first paper pickup wheel is separated from the paper bag, and when the minimum eccentric section of the cam is in contact with the swing rod, the first paper pickup wheel is in contact with the paper bag; a limit plate for adjusting the size of the paper bag outlet gap is provided at the paper bag outlet of the bag storage box; One end of the rocker arm close to the cam is hingedly connected to one end of the first connecting rod, the other end of the first connecting rod is hingedly connected to one end of the second connecting rod, the middle part of the second connecting rod is hingedly connected to the side plate of the bagging machine, the other end of the second connecting rod extends out of the bag storage box and is connected to the pressing block, the pressing block is arranged at the outlet of the bag storage box, and the side plate of the bagging machine is provided with a guide groove for guiding the pressing block to move up and down; An elastic member is provided on the pressing block, and the elastic member pulls the pressing block to make the rocker arm elastically contact with the cam; A cutter or abutment portion is provided below the pressing block to cut the continuous paper bags connected end to end; A position sensor for detecting whether the paper bag is delivered to the position between the second pickup wheel and the third pickup wheel is provided on the bagging machine frame.

2. The bag feeding mechanism of the bagging machine according to claim 1, characterized in that: A semicircular chamfer or an inverted slope is provided on one side of the lower end of the limiting plate close to the interior of the bag storage box.

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