Bag opening and feeding mechanism

Abstract

The utility model provides a bag opening and feeding mechanism which comprises a blanking mounting frame, a hopper and a bagging opening are arranged on the blanking mounting frame, and a first bag opening mechanism and a second bag opening mechanism are arranged on the blanking mounting frame around the bagging opening. The first bag opening mechanism comprises bag opening telescopic frames, and each bag opening telescopic frame is provided with a bag opening clamping plate capable of stretching out and drawing back relative to the bag opening telescopic frame. The second bag opening mechanism comprises two bag opening rotating shafts and a first bag opening driving part, the two bag opening rotating shafts are arranged on the other two opposite sides of the bagging opening in parallel, each bag opening rotating shaft is provided with a telescopic opening claw, and the bag opening rotating shafts are driven by the first bag opening driving part. A telescopic raking claw is arranged on a bag raking rotating shaft, after bagging is completed, the bag raking rotating shaft retracting the raking claw can rotate outwards to the outer side of the mesh bag, then the raking claw stretches out and moves to the position opposite to the side edge of the mesh bag, the bag raking rotating shaft rotates reversely to enable the raking claw to abut against the side face of the mesh bag and push the side face of the mesh bag towards the interior of the mesh bag, and the part, protruding out of the membrane, of the mesh bag is pushed back. And the mesh bag is simpler and smoother after being sealed.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic packaging equipment, in particular to a bag opening and loading mechanism. Background Art

[0002] Traditional packaging bags are usually made of composite film, which has a certain hardness due to its unique material. Before filling the bag with materials, we usually open the bag first so that we can put the items in it smoothly. However, when it comes to fruit and vegetable materials such as oranges, lemons, potatoes, etc., if composite film is used for packaging, we will find that its ventilation effect is not satisfactory.

[0003] In order to solve this problem, cylindrical mesh bags specially used for packaging fruits and vegetables have gradually appeared on the market. The bag body design of this cylindrical mesh bag is very unique. It consists of two parts: a cylindrical mesh film and a sheet-type composite film. The inside of the cylindrical mesh film is a space for placing fruits and vegetables, while the sheet-type composite film is attached to the outer part of the mesh film, thus forming the packaging mesh bag we see. This design not only ensures the air permeability of fruits and vegetables, but also makes the entire packaging look more beautiful and practical.

[0004] In order to improve packaging efficiency, some mechanical equipment specially used for mesh bag packaging has also appeared on the market. These mesh bag packaging machines usually include multiple components such as bag making mechanism, transfer mechanism, loading mechanism and bag sealing mechanism. They can automatically complete the entire process from bag making to bag sealing, greatly improving production efficiency. However, in existing mesh bag packaging machines, the design of the loading mechanism is often relatively simple. Usually, it only consists of a hopper and a bag opening clamp. The hopper is responsible for putting the material into the mesh bag, while the bag opening clamp is responsible for opening the mesh bag before loading. However, when the loading is completed, the bag opening clamp sometimes causes the two sides of the mesh bag seal to fold and protrude outside the mesh bag during the process of retracting and clamping the mesh bag. In this way, the overall shape of the mesh bag appears to be large at the top and small at the bottom, which is not beautiful, and it takes up more space and is not flat when stacked, which is not conducive to transportation. Therefore, how to improve the design of the loading mechanism and avoid the occurrence of this problem has become a key issue that needs to be paid attention to in the current research and development of mesh bag packaging machines. Utility Model Content

[0005] In order to solve the above problems, the purpose of the utility model is to provide a bag opening and loading mechanism.

[0006] The utility model is implemented by the following method: a bag opening and loading mechanism, including a blanking installation frame, a hopper is arranged on the blanking installation frame, and a bag loading port is arranged below the blanking installation frame, and a first bag picking mechanism and a second bag picking mechanism are arranged around the bag loading port on the blanking installation frame; the first bag picking mechanism includes a bag picking telescopic frame, and the two bag picking telescopic frames are relatively arranged on the two opposite sides of the bag loading port of the blanking installation frame, and each of the bag picking telescopic frames is provided with a bag picking splint that can be telescopic relative to the bag picking telescopic frame; the second bag picking mechanism includes two bag picking shafts and a first bag picking driving member, the two bag picking shafts are parallelly arranged on the other two opposite sides of the bag loading port, respectively adjacent to the two bag picking telescopic frames, each of the bag picking shafts is provided with a telescopic claw, and the bag picking shaft is driven to rotate by the first bag picking driving member.

[0007] Preferably, a fourth driving member for picking up the bag is installed on the bag picking shaft, the picking claw is movably installed on the bag picking shaft, the moving direction of the picking claw is perpendicular to the axis of the bag picking shaft, and the fourth driving member for picking up the bag is transmission connected with the picking claw for driving the picking claw to move.

[0008] Preferably, the fourth driving member for the bag picking device includes a claw displacement plate and a rotating cylinder. The claw displacement plate is circumferentially limited and installed on the bag picking shaft. A claw guide cylinder perpendicular to the bag picking shaft is provided on the claw displacement plate. The claw is installed in the claw guide cylinder. The rotating cylinder is installed on the claw displacement plate. A rack is provided at one end of the claw close to the rotating cylinder. The output shaft of the rotating cylinder is provided with a gear matching the rack, which is used to drive the claw to extend and retract along the claw guide cylinder.

[0009] Preferably, two picking claws are installed on each of the bag picking shafts, and two groups of corresponding bag picking fourth driving members are provided; the two picking claw displacement plates can move axially along the bag picking shaft and are symmetrically installed on the bag picking shaft; a reset spring is sleeved on the bag picking shaft between the two picking claw displacement plates, and a bag picking top abutment is respectively provided at the positions of the four picking claw displacement plates opposite to the bag picking telescopic frame on the same side thereof, and when the two bag picking telescopic frames approach each other, the two sides of one end facing each other can respectively abut the bag picking top abutment of the picking claw displacement plates on the corresponding sides, so as to drive the two picking claw displacement plates on the same bag picking shaft to approach each other, and the reset spring is used to drive the picking claw displacement plates to reset and move away; a detachable quick-release hook is installed on the outer side wall of the picking claw guide cylinder on the picking claw displacement plate, and the picking claw is opposite to the quick-release hook after extending from the picking claw guide cylinder.

[0010] Preferably, the connection between the bag lifting shaft and both sides of the blanking installation frame is provided with a bag lifting cam mechanism that can swing relative to the blanking installation frame, and the first bag lifting drive member drives the bag lifting shaft to rotate while realizing the swing of the bag lifting shaft.

[0011] Preferably, the bag picking cam mechanism includes a cam connecting plate and a swing cam, the swing cam is fixed on the end face of the bag picking shaft, the cam connecting plate is provided with a swing arc groove, the swing cam is deviated from the axis of the bag picking shaft to set a bag picking guide portion, the bag picking guide portion is located in the swing arc groove; a swing displacement mounting frame is provided on the side of the blanking mounting frame away from the cam connecting plate, the first bag picking driving member is installed on one of the swing displacement mounting frames, the swing displacement mounting frame can move relative to the blanking mounting frame, and the first bag picking driving member is connected to the bag picking shaft in a transmission manner.

[0012] Preferably, a first transverse swing guide groove is provided on the blanking mounting frame opposite to the cam connecting plate, a sliding portion is provided on the swing displacement mounting frame, the sliding portion is sunk into the first swing guide groove, a coupling is connected between the first bag lifting drive member and the bag lifting shaft, a second transverse swing guide groove is provided on the cam connecting plate, the bag lifting shaft passes through the second swing guide groove and is connected to the swing displacement mounting frame, and the bag lifting shaft can move transversely in the second swing guide groove.

[0013] Preferably, the swing arc groove is in an upward arc shape, and bends from close to the bag picking telescopic frame to away from the bag picking telescopic frame.

[0014] Preferably, the bag lifting splint is arranged on a side of the bag lifting telescopic frame opposite to the other bag lifting telescopic frame, the bag lifting telescopic frame is movably connected to the blanking mounting frame, a bag lifting matching plate is arranged at one end of the bag lifting telescopic frame adjacent to the bag lifting splint, the bag lifting matching plate cooperates with the bag lifting splint, the bag lifting telescopic frame is driven by the second bag lifting drive member, the bag lifting splint is driven by the third bag lifting drive member, and the third bag lifting drive member is installed on the bag lifting telescopic frame.

[0015] Preferably, a gate is provided at the outlet on the lower side of the hopper, and a blanking gate cylinder is installed on the side of the hopper, and the blanking gate cylinder is connected to the gate for opening or closing the gate.

[0016] Preferably, an air blowing nozzle is respectively installed on both sides of the bag lifting shaft installed on the blanking installation frame, and the air blowing nozzle avoids the bag lifting shaft and faces the middle of the bag loading port.

[0017] The beneficial effects of the utility model are: the utility model provides a bag opening and loading mechanism. Compared with the prior art, the utility model has at least the following technical effects: 1. First, by installing a bag picking shaft on the side adjacent to the bag picking telescopic frame on the blanking installation frame, and arranging a retractable claw on the bag picking shaft, the bag picking shaft with the claw retracted after bagging can be rotated outward to the outside of the net bag, and then the claw can be extended and moved to a position opposite to the side of the net bag, and then the bag picking shaft is reversely rotated to make the claw press against the side of the net bag and push it into the net bag, so that the part of the net bag protruding from the diaphragm can be pushed back, the bag mouth can be sealed, and the claw can be retracted, making the net bag more concise and flat after sealing, reducing space occupation. 2. The fourth driving member of the bag picking uses a rotary cylinder, and a rack that cooperates with the gear on the output shaft of the rotary cylinder is designed at the end of the claw, so that the claw can be driven to extend and retract, playing a role in avoiding the net bag. 3. Each bag lifting shaft is equipped with two lifting claws that can approach or move away from each other, so as to better push back the leaked part of the net bag. 4. A bag lifting cam mechanism is installed at the connection between the bag lifting shaft and the blanking installation frame, so that the bag lifting shaft can swing outward to have a larger space after rotation, that is, the lifting claws are farther away from the net bag, which helps to open the bag mouth of the net bag wider, speed up the loading speed, and improve production efficiency. 5. The first driving member of the bag lifting is installed on the swing displacement mounting frame. The swing displacement mounting frame can move relative to the blanking installation frame. The first driving member of the bag lifting can be driven to move with the swing of the bag lifting shaft to avoid interference. In this way, the bag lifting shaft can be driven to swing by the cam, so that the lifting claws have more room to make way. 6. The bag picking telescopic frame is provided with the bag picking matching plate and the bag picking clamping plate. The bag picking clamping plate can move relative to the bag picking matching plate. The third driving member drives the bag picking clamping plate to move. When the two are close to each other, the delivered net bag can be clamped. The bag picking telescopic frame can move to open or close the bag mouth of the net bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a structural schematic diagram of a bag opening and loading mechanism.

[0019] Figure 2 It is a structural schematic diagram of a bag opening and loading mechanism of the utility model from another perspective.

[0020] Figure 3 The utility model is a schematic structural diagram of a bag opening and loading mechanism without a hopper.

[0021] Figure 4 The utility model is a connection diagram of the bag picking rotating shaft and the cam mechanism, the bag picking claw and the first driving member of the bag picking.

[0022] Figure 5It is a connection diagram of the bag picking rotating shaft and the cam mechanism, the bag picking claw and the first driving member of the bag picking from another perspective of the utility model.

[0023] Figure 6 The utility model is a cross-sectional connection view of the bag picking rotating shaft, the cam mechanism, the picking claw and the first driving member of the bag picking.

[0024] Figure 7 A partial exploded view of the bag picking shaft and cam mechanism connection, the bag picking claw and the first driving member of the bag picking of the utility model.

[0025] Figure 8 A schematic diagram showing the separation of the claw, quick-release hook and claw displacement plate assembly of the utility model.

[0026] Fig. 9 It is a structural schematic diagram of a bag picking telescopic frame of the utility model.

[0027] Fig.10 It is a schematic diagram of the hopper structure of the utility model.

[0028] Explanation of the accompanying drawings: 1. Blanking installation frame; 11. First swing guide groove; 2. Hopper; 21. Blanking gate cylinder; 22. Gate; 3. Bag picking telescopic frame; 31. Bag picking splint; 32. Bag picking matching plate; 33. Bag picking third driving member; 34. Bag picking second driving member; 4. Bag picking shaft; 5. Bag picking first driving member; 51. Swing displacement installation frame; 52. Sliding part; 53. Coupling; 6. Picking claw; 61. Quick release hook; 7. Bag picking fourth driving member; 71. Rotating cylinder; 72. Picking claw displacement plate; 73. Pushing part; 8. Reset spring; 9. Bag picking cam mechanism; 91. Swinging cam; 92. Cam connecting plate; 921. Second swing guide groove; 93. Swinging arc groove; 94. Bag picking guide part; 10. Blowing nozzle. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] See also Figures 1 to 10, a bag opening and loading mechanism comprises a blanking installation frame 1, the blanking installation frame 1 is provided with a hopper 2, the blanking installation frame 1 is located below the hopper 2 and is provided with a bag loading port, the blanking installation frame 1 is provided with a first bag picking mechanism and a second bag picking mechanism around the bag loading port; the first bag picking mechanism comprises a bag picking telescopic frame 3, two of the bag picking telescopic frames 3 are relatively arranged on the opposite sides of the bag loading port of the blanking installation frame 1, each of the bag picking telescopic frames 3 is provided with a bag picking splint 31 that can be telescopic relative to the bag picking telescopic frame 3; the second bag picking mechanism comprises two bag picking shafts 4 and a first bag picking driving member 5, the two bag picking shafts 4 are parallelly arranged on the other two opposite sides of the bag loading port, respectively adjacent to the two bag picking telescopic frames 3, each of the bag picking shafts 4 is provided with a telescopic picking claw 6, and the bag picking shaft 4 is driven to rotate by the first bag picking driving member 5. First, the bag lifting shaft 4 is installed on the side of the blanking installation frame 1 adjacent to the bag lifting telescopic frame 3, and a retractable lifting claw 6 is provided on the bag lifting shaft 4. In this way, after the bagging is completed, the bag lifting shaft 4 can be rotated outward to go around the outside of the mesh bag, and then the lifting claw 6 can be extended and moved to a position opposite to the side of the mesh bag. Then, the bag lifting shaft 4 rotates in the opposite direction to make the lifting claw 6 press against the side of the mesh bag and push it into the mesh bag, so that the part of the mesh bag protruding from the diaphragm can be pushed back, the bag opening can be sealed, and the lifting claw 6 can be retracted, making the mesh bag more concise and flat after sealing, reducing the space occupied.

[0031] See also Figures 1 to 8 Preferably, a fourth driving member 7 for picking up the bag is installed on the bag picking shaft 4, the claw 6 is movably installed on the bag picking shaft 4, the moving direction of the claw 6 is perpendicular to the axis of the bag picking shaft 4, and the fourth driving member 7 for picking up the bag is in transmission connection with the claw 6, and is used to drive the claw 6 to move. The fourth driving member 7 for picking up the bag includes a claw displacement plate 72 and a rotary cylinder 71, the claw displacement plate 72 is circumferentially limitedly installed on the bag picking shaft 4, the claw displacement plate 72 is provided with a claw guide cylinder perpendicular to the bag picking shaft 4, the claw 6 is installed in the claw guide cylinder, the rotary cylinder 71 is installed on the claw displacement plate 72, a rack is provided at one end of the claw 6 close to the rotary cylinder 71, and a gear matched with the rack is provided on the output shaft of the rotary cylinder 71, and is used to drive the claw 6 to extend and retract along the claw guide cylinder. The fourth driving member 7 for picking up the bag adopts a rotary cylinder 71, and a rack is designed at the end of the picking claw 6 to cooperate with the gear on the output shaft of the rotary cylinder 71, so that the picking claw 6 can be driven to extend and retract along the picking claw guide tube to avoid the net bag.

[0032] See also Figures 1 to 8Preferably, two picking claws 6 are installed on each of the bag picking shafts 4, and the corresponding bag picking fourth driving members 7 are provided with two groups; the two picking claw displacement plates 72 can move axially along the bag picking shaft 4, and are symmetrically installed on the bag picking shaft; a reset spring 8 is sleeved on the bag picking shaft between the two picking claw displacement plates 72, and a bag picking top abutment 73 is respectively provided at the position where the four picking claw displacement plates 72 are opposite to the bag picking telescopic frame 3 on the same side thereof, and when the two bag picking telescopic frames 3 approach each other, the two sides of one end facing each other can respectively abut the bag picking top abutment 73 of the picking claw displacement plate 72 on the corresponding side, so as to drive the same bag picking shaft The two claw displacement plates 72 on the bag shaft 4 are close to each other, and the reset spring 8 is used to drive the claw displacement plates 72 to reset and move away; a detachable quick-release hook 61 is installed on the claw displacement plate 72 on the outer side wall of the claw guide cylinder, and the claw 6 is opposite to the quick-release hook 61 after extending from the claw guide cylinder, and there is a gap between the quick-release hook 61 and the claw, and a protruding hook is provided at the head end of the quick-release hook 61, which assists in opening the cylindrical mesh without the composite membrane part when the bag shaft 4 rotates the bag (when the cylindrical mesh is a soft mesh (woven mesh), a quick-release hook is installed on the claw displacement plate, and when the cylindrical mesh is a hard mesh (injection molding mesh), the quick-release hook can be removed). Two claws 6 that can approach or move away from each other are installed on each bag shaft 4, which can push back the leaked part of the mesh bag more accurately. The rotary cylinder 71 can also be replaced by a motor. When the net bag is a soft net, the bag lifting telescopic frame 3 first clamps the stretched net bag, and then the bag lifting shaft 4 drives the claw displacement plate 72 to rotate downward, and then drives the quick-release hook 61 thereon to rotate downward and hook the side of the net bag, and then the rotating cylinder 71 drives the claw to extend and connect with the quick-release hook 61 to clamp the net bag together and grab the net bag. After the bagging is completed, the bag lifting shaft 4 rotates in the opposite direction, driving the claw displacement plate 72 to rotate in the opposite direction, driving the quick-release hook 61 and the claw 6 to rotate in the opposite direction, and after rotating a certain angle, the leaked net bag is caught back into the sheet-type composite film on both sides, and then the claw 6 retracts and the net bag is released from the quick-release hook 61 under the action of gravity, and the net bag can be released. When the mesh bag is a hard mesh, the first driving member 5 for picking up the bag drives the cam mechanism to rotate, and the bag picking guide part 94 of the swinging cam 91 of the cam mechanism moves along the swinging arc groove 93. At this time, the bag picking shaft 4 can swing outward, so that the bag picking shaft 4 is away from the mesh bag. At this time, the axial direction of the claw guide cylinder is vertical, and the rotating cylinder 71 rotates to drive the claw 6 to move down along the claw guide cylinder; after the claw 6 moves down to the right position, the rear hopper 2 opens the gate 22 through the blanking gate cylinder 21, and the material in the hopper 2 falls into the mesh bag at the blanking port; after enough material is loaded, the gate 22 is closed, and the first driving member 5 for picking up the bag drives the cam mechanism to rotate in the opposite direction, thereby driving the bag picking shaft 4 to swing in the opposite direction, so that the claw 6 swings toward the middle of the mesh bag, pushing the part of the mesh bag not covered by the membrane into the belt, and then the rotating cylinder 71 immediately drives the claw 6 to move in the opposite direction and retract into the claw guide cylinder.

[0033] See also Figures 1 to 8 Preferably, the connection between the bag picking shaft 4 and the two sides of the blanking installation frame 1 is provided with a bag picking cam mechanism 9 that can swing relative to the blanking installation frame 1, and the first bag picking driving member 5 drives the bag picking shaft 4 to rotate while realizing the swing of the bag picking shaft 4. The bag picking cam mechanism 9 includes a cam connecting plate 92 and a swing cam 91, the swing cam 91 is fixed on the end surface of the bag picking shaft, the cam connecting plate 92 is provided with a swing arc groove 93, and the swing cam 91 is provided with a bag picking guide part 94 at a position deviating from the axis of the bag picking shaft 4, and the bag picking guide part 94 is located in the swing arc groove 93; the side of the blanking installation frame 1 away from the cam connecting plate 92 is provided with a swing displacement mounting frame 51, the first bag picking driving member 5 is installed on one of the swing displacement mounting frames 51, the swing displacement mounting frame 51 can move relative to the blanking installation frame 1, and the first bag picking driving member 5 is connected to the bag picking shaft 4 in a transmission manner. A bag lifting cam mechanism 9 is installed at the connection between the bag lifting shaft 4 and the blanking installation frame 1, so that the bag lifting shaft 4 can swing outward to have a larger space after rotation, that is, the lifting claw 6 is farther away from the net bag, which helps to open the bag mouth of the net bag wider, speed up the loading speed, and improve production efficiency.

[0034] See also Figures 1 to 8 Preferably, a transverse first swing guide groove 11 is provided on the blanking installation frame 1 opposite to the cam connecting plate 92, a sliding portion 52 is provided on the swing displacement mounting frame 51, and the sliding portion 52 is trapped in the first swing guide groove 11. A coupling 53 is connected between the first driving member 5 of the bag picking and the bag picking shaft 4, and a transverse second swing guide groove 921 is provided on the cam connecting plate 92. The bag picking shaft 4 passes through the second swing guide groove 921 to connect the swing displacement mounting frame 51, and the bag picking shaft 4 can move transversely in the second swing guide groove 921. The swing displacement mounting frame 51 can move along the first swing guide groove 11, which can not only limit the flipping of the swing displacement mounting frame 51, but also meet the requirements that in order to make the cam mechanism drive the bag picking shaft 4 to swing, the swing displacement mounting frame 51 can be displaced by a certain distance to avoid interfering with the swing of the bag picking shaft 4.

[0035] See also Figures 1 to 8 Preferably, the swing arc groove 93 is in an upward curved arc shape, and is bent from close to the bag picking telescopic frame 3 to away from the bag picking telescopic frame 3. When the swing cam 91 rotates, it can drive the bag picking shaft 4 to deflect.

[0036] See also Figures 1 to 3 , Fig. 9Preferably, the bag picking clamping plate 31 is arranged on the side of the bag picking telescopic frame 3 opposite to the other bag picking telescopic frame 3, the bag picking telescopic frame 3 is movably connected with the blanking installation frame 1, and the end of the bag picking telescopic frame 3 adjacent to the bag picking clamping plate 31 is provided with a bag picking matching plate 32, the bag picking matching plate 32 matches with the bag picking clamping plate 31, the bag picking telescopic frame 3 is driven by the bag picking second driving member 34, and the bag picking clamping plate 31 is driven by the bag picking third driving member 33, and the bag picking third driving member 33 is installed on the bag picking telescopic frame 3. The bag picking telescopic frame 3 is provided with the bag picking matching plate 32 and the bag picking clamping plate 31, the bag picking clamping plate 31 can move relative to the bag picking matching plate 32, and the bag picking clamping plate 31 is moved by the driving of the third driving member, and the two are close to each other to achieve the clamping of the delivered net bag; and the bag picking telescopic frame 3 can move, so that the bag mouth of the net bag can be opened or closed. The second driving member 34 for picking up the bag and the third driving member 33 for picking up the bag can both be cylinders.

[0037] See also Figure 1 to Figure 2 , Fig.10 Preferably, a gate 22 is provided at the outlet of the lower side of the hopper 2, and a blanking gate cylinder 21 is installed on the side of the hopper 2, and the blanking gate cylinder 21 is connected to the gate 22 for opening or closing the gate 22. It is used to control the blanking of the hopper 2.

[0038] See also Figures 1 to 3 Preferably, a blowing nozzle 10 is installed on both sides of the bag lifting shaft 4 installed on the blanking installation frame 1, and the blowing nozzle avoids the bag lifting shaft 4 and faces the middle of the bagging port. The auxiliary claw 6 pushes the leaked mesh bag back to the inner side of the membrane so that the mesh bag can be folded flat.

[0039] The utility model has the following working principle:

[0040] The finished mesh bag is sent to the material drop port through the transfer mechanism, the bag picking telescopic frame 3 is in the initial position, and the third bag picking driving member 33 drives the bag picking clamping plate 31 to approach the bag picking matching plate 32 to clamp the delivered mesh bag with two sides of the diaphragm; then the first bag picking driving member 5 drives the cam mechanism to rotate, and the bag picking guide part 94 of the swing cam 91 of the cam mechanism moves along the swing arc groove 93, at this time, the bag picking shaft 4 can be swung outward, so that the bag picking shaft 4 is away from the mesh bag, at this time, the axial direction of the claw guide cylinder is vertical, and the rotary cylinder 71 rotates to drive The movable claw 6 moves downward along the claw guide cylinder; after the claw 6 moves down to the right position, the rear hopper 2 opens the gate 22 through the blanking gate cylinder 21, and the material in the hopper 2 falls into the mesh bag at the blanking port; after enough material is loaded, the gate 22 is closed, and the first driving member 5 of the bag drives the cam mechanism to rotate in the opposite direction, thereby driving the bag rotating shaft 4 to swing in the opposite direction, so that the claw 6 swings toward the middle of the mesh bag, pushing the part of the mesh bag not covered by the membrane into the belt, and then the rotating cylinder 71 immediately drives the claw 6 to move in the opposite direction and retract into the claw guide cylinder. After the bag lifting shaft 4 returns to the initial position, the bag lifting telescopic frames 3 on both sides are driven by the bag lifting second driving member 34 to approach each other, and at the same time, the end of the bag lifting telescopic frame 3 abuts against the bag lifting top support portion 73 of the claw displacement plate 72, so that the two claw displacement plates 72 on the same bag lifting shaft 4 are close to each other, that is, the two claws 6 are close to each other, that is, to assist in folding the bag mouth of the net bag; then the transfer mechanism clamps the folded net bag, and the bag lifting third driving member 33 drives the bag lifting clamping plate 31 to move away from the bag lifting matching plate 32 to release the net bag, and the transfer mechanism can send away the net bag containing the material; then the bag lifting second driving member 34 drives the bag lifting telescopic frame 3 to move away from each other and reset, and at the same time, the claw displacement plate 72 is no longer abutted by the claw 6 telescopic frame, and the two claw displacement plates 72 are driven by the reset spring 8 to reset and move away from each other, and can wait for the next loading.

[0041] Several points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, and can be mechanical or electrical connections, or internal connectivity between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.

[0042] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the usual design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0043] Finally, the above is only a preferred implementation of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions under the concept of the present utility model belong to the protection scope of the present utility model.

[0044] It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications without departing from the principle of the utility model should also be regarded as within the protection scope of the utility model.

Claims

1. A bagging and loading mechanism, comprising a blanking installation frame, a hopper is arranged on the blanking installation frame, and a bagging opening is arranged below the hopper on the blanking installation frame, characterized in that: A first bag picking mechanism and a second bag picking mechanism are arranged around the bag loading port on the blanking installation frame; the first bag picking mechanism includes a bag picking telescopic frame, and the two bag picking telescopic frames are relatively arranged on the two opposite sides of the bag loading port of the blanking installation frame, and each of the bag picking telescopic frames is provided with a bag picking splint that can be telescoped relative to the bag picking telescopic frame; the second bag picking mechanism includes two bag picking shafts and a first bag picking driving member, and the two bag picking shafts are arranged in parallel on the other two opposite sides of the bag loading port and are respectively adjacent to the two bag picking telescopic frames, and each of the bag picking shafts is provided with a telescopic picking claw, and the bag picking shaft is driven to rotate by the first bag picking driving member.

2. A bag opening and loading mechanism according to claim 1, characterized in that: A fourth driving member for picking up the bag is installed on the bag picking shaft, and the picking claw is movably installed on the bag picking shaft. The moving direction of the picking claw is perpendicular to the axis of the bag picking shaft, and the fourth driving member for picking up the bag is transmission-connected with the picking claw for driving the picking claw to move.

3. A bag opening and loading mechanism according to claim 2, characterized in that: The fourth driving member of the bag picking device includes a claw displacement plate and a rotating cylinder. The claw displacement plate is circumferentially limited and installed on the bag picking shaft. A claw guide cylinder perpendicular to the bag picking shaft is provided on the claw displacement plate. The claw is installed in the claw guide cylinder. The rotating cylinder is installed on the claw displacement plate. A rack is provided at one end of the claw close to the rotating cylinder. The output shaft of the rotating cylinder is provided with a gear that cooperates with the rack and is used to drive the claw to extend and retract along the claw guide cylinder.

4. A bag opening and loading mechanism according to claim 3, characterized in that: Two claws are installed on each bag picking shaft, and two groups of corresponding bag picking fourth driving members are provided; the two claw displacement plates can move axially along the bag picking shaft and are symmetrically installed on the bag picking shaft; A reset spring is sleeved on the bag picking shaft between the two claw displacement plates, and a bag picking top abutting part is respectively arranged at the positions of the four claw displacement plates opposite to the bag picking telescopic frame on the same side thereof. When the two bag picking telescopic frames are close to each other, the two sides of one end facing each other can respectively abut the bag picking top abutting part of the claw displacement plates on the corresponding sides, so as to drive the two claw displacement plates on the same bag picking shaft to approach each other, and the reset spring is used to drive the claw displacement plates to reset and move away; A detachable quick-release hook is installed on the outer side wall of the claw guide cylinder on the claw displacement plate, and the claw is opposite to the quick-release hook after extending from the claw guide cylinder.

5. The bag opening and loading mechanism according to claim 1, characterized in that: The connection between the bag picking shaft and the two sides of the blanking installation frame is provided with a bag picking cam mechanism that can swing relative to the blanking installation frame, and the first bag picking driving member drives the bag picking shaft to rotate and realizes the swing of the bag picking shaft at the same time.

6. A bag opening and loading mechanism according to claim 5, characterized in that: The bag picking cam mechanism includes a cam connecting plate and a swing cam, the swing cam is fixed on the end face of the bag picking shaft, the cam connecting plate is provided with a swing arc groove, a bag picking guide is arranged at a position of the swing cam deviating from the axis of the bag picking shaft, and the bag picking guide is located in the swing arc groove; a swing displacement mounting frame is arranged on the side of the blanking mounting frame away from the cam connecting plate, the first bag picking driving member is mounted on one of the swing displacement mounting frames, the swing displacement mounting frame can move relative to the blanking mounting frame, and the first bag picking driving member is transmission connected with the bag picking shaft.

7. A bag opening and loading mechanism according to claim 6, characterized in that: A first transverse swing guide groove is provided on the blanking mounting frame opposite to the cam connecting plate, and a sliding portion is provided on the swing displacement mounting frame, and the sliding portion is sunk into the first swing guide groove. A coupling is connected between the first bag lifting driving member and the bag lifting shaft, and a second transverse swing guide groove is provided on the cam connecting plate. The bag lifting shaft passes through the second swing guide groove and is connected to the swing displacement mounting frame, and the bag lifting shaft can move transversely in the second swing guide groove.

8. The bag opening and loading mechanism according to claim 6, characterized in that: The swing arc groove is in an upward curved arc shape, and is bent from close to the bag picking telescopic frame to away from the bag picking telescopic frame.

9. The bag opening and loading mechanism according to claim 1, characterized in that: The bag lifting splint is arranged on a side of the bag lifting telescopic frame opposite to the other bag lifting telescopic frame, the bag lifting telescopic frame is movably connected to the blanking installation frame, and a bag lifting matching plate is arranged at one end of the bag lifting telescopic frame adjacent to the bag lifting splint, and the bag lifting matching plate matches with the bag lifting splint, the bag lifting telescopic frame is driven by the second bag lifting drive member, and the bag lifting splint is driven by the third bag lifting drive member, and the third bag lifting drive member is installed on the bag lifting telescopic frame.

10. The bag opening and loading mechanism according to claim 1, characterized in that: A gate is provided at the outlet on the lower side of the hopper, and a blanking gate cylinder is installed on the side of the hopper. The blanking gate cylinder is connected to the gate and is used to open or close the gate; an air blowing nozzle is respectively installed on both sides of the bag lifting shaft installed on the blanking mounting frame, and the air blowing nozzle avoids the bag lifting shaft and faces the middle of the bag loading port.

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