High-stability rack bag opening device

Abstract

The utility model relates to a high-stability rack bag opening device with higher efficiency. The high-stability rack bag opening device comprises a support and a bag opening mechanism. The bag opening mechanism comprises a left bag opening assembly and a right bag opening assembly. The left bag opening assembly comprises a left bag opening hand, a left rotating shaft, a left rotating shaft seat and a left gear, the left bag opening hand is installed at one end of the left rotating shaft, the left gear is installed at the other end of the left rotating shaft, the left rotating shaft is rotatably installed on the left rotating shaft seat, and the left rotating shaft seat is installed on the support; the right bag opening assembly and the left bag opening assembly are the same in structure. The front end of the left bag opening hand and the front end of the right bag opening hand have a first state of being relatively close to each other and a second state of being relatively away from each other. According to the high-stability rack bag opening device, the rotatable left bag opening hand and the rotatable right bag opening hand are arranged, a bag can be opened only by rotating the two bag opening hands, and the high-stability rack bag opening device has the advantages of being simple in structure, fast in action, low in cost and the like.

Description

Technical Field

[0001] The utility model relates to a prefabricated bag packaging machine, in particular to a bag supporting device of the packaging machine. Background Art

[0002] A pre-made bag packaging machine is a machine that pushes the items to be packaged into a packaging bag, and then seals the packaging bag. Before the items are pushed in, the packaging bag needs to be opened to allow the items to enter. For example, Chinese Patent No.: 201120319174.6, the invention name is "A bag taking and bag holding device for a packaging machine", which discloses a bag taking and bag holding device for a packaging machine, the bag taking and bag holding device includes a bag taking mechanism and a bag holding mechanism, the bag taking mechanism includes an upper suction nozzle and its upper suction nozzle support frame, a lower suction nozzle and its lower suction nozzle support frame, the lower suction nozzle support frame is connected to a lifting cylinder, the lower suction nozzle is connected to the lower suction nozzle support frame through a horizontal moving cylinder, and a bag body placement groove is also provided on the lower suction nozzle support frame, the bag holding mechanism is arranged on the upper suction nozzle support frame, the bag holding mechanism includes a left support plate, a right support plate and a left and right support plate opening cylinder, the left support plate and the right support plate are respectively connected to an inlet support cylinder, and the left and right support plate opening cylinders are connected to the left support plate and the right support plate. This bag taking and supporting bag is placed in a horizontal position, and adopts a structure in which the upper suction nozzle directly takes the bag from the bag body placement slot, the lower suction nozzle cooperates with the upper suction nozzle to pull the bag open, and then the supporting plate is used to support the prefabricated bag. However, it can be seen that when the left and right supporting plates support the bag, it is necessary to open the cylinder and advance the supporting cylinder, that is, the left and right supporting plates need two actions to complete the bag support. Obviously, this structure is more complicated and takes a long time to complete the action. Therefore, the existing structure not only increases the production cost, reduces stability, but also affects the production efficiency. Summary of the invention

[0003] In view of the deficiencies in the prior art, the utility model innovatively provides a rack bag-supporting device with higher efficiency and higher stability.

[0004] The high-stability rack bag-supporting device comprises a support and a bag-supporting mechanism A, wherein the bag-supporting mechanism A comprises a left bag-supporting assembly and a right bag-supporting assembly; the left bag-supporting assembly comprises a left bag-supporting hand, a left rotating shaft, a left rotating shaft seat and a left gear, wherein the left bag-supporting hand is mounted at one end of the left rotating shaft, wherein the left gear is mounted at the other end of the left rotating shaft, wherein the left rotating shaft is rotatably mounted on the left rotating shaft seat, wherein the left rotating shaft seat is mounted on the support; the right bag-supporting assembly comprises a right bag-supporting hand, a right rotating shaft, a right rotating shaft seat and a right gear, wherein the right bag-supporting hand is mounted at one end of the right rotating shaft, wherein the right gear is mounted at the The other end of the right rotating shaft, the right rotating shaft is rotatably mounted on the right rotating shaft seat, and the right rotating shaft seat is mounted on the support; the first transmission mechanism and the second transmission mechanism are mounted on the support; the first transmission mechanism includes a first rack and a first bag-holding power source that drives the first rack to move, and the first rack is meshed with the right gear; the second transmission mechanism includes a second rack and a second bag-holding power source that drives the second rack to move, and the second rack is meshed with the left gear; the front end of the left bag-holding hand and the front end of the right bag-holding hand have a first state that is relatively close and a second state that is relatively far away.

[0005] The left bag holding handle is installed on the left adjustment seat, and the left adjustment seat is installed on the left rotating shaft so as to be movable up and down; the right bag holding handle is installed on the right adjustment seat, and the right adjustment seat is installed on the right rotating shaft so as to be movable up and down.

[0006] The support has a transverse long slot, and the left rotating shaft and the right rotating shaft both pass through the transverse long slot. The left rotating shaft seat and the right rotating shaft seat can be installed on the support in a manner that they can be moved leftward and rightward and adjusted.

[0007] The left bag holding handle and the right bag holding handle are both in the shape of long arc surfaces, and the inner arc surface of the left bag holding handle is arranged opposite to the inner arc surface of the right bag holding handle.

[0008] The rear end of the left bag holding handle has a left guide surface inclined toward the left side, and the rear end of the right bag holding handle has a right guide surface inclined toward the right side.

[0009] A first guide seat is installed on the support, and the first rack is movably arranged in the guide hole of the first guide seat; a second guide seat is installed on the support, and the second rack is movably arranged in the guide hole of the second guide seat.

[0010] The bag-supporting mechanisms A are provided in multiple groups and are arranged side by side. The right gear of each group of bag-supporting mechanisms A is meshed with the first rack, and the left gear of each group of bag-supporting mechanisms A is meshed with the second rack.

[0011] According to the utility model, a high-stability rack bag-opening device is improved. By setting a rotatable left bag-opening hand and a right bag-opening hand, the bag can be opened by rotating only the two bag-opening hands. It has the advantages of simple structure, fast action, low cost, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The three-dimensional Figure 1 ;

[0013] Figure 2 The three-dimensional Figure 2 ;

[0014] Figure 3 It is a top view of the utility model. DETAILED DESCRIPTION

[0015] like Figure 1 As shown, this high-stability rack bag-opening device includes a support 1 and a bag-opening mechanism A. When the bag is opened by the upper and lower bag-sucking mechanisms (the bag-sucking mechanism is the prior art, and the upper and lower suction nozzles suck the bag to open the bag), the bag-opening mechanism A will open the left and right sides of the bag opening, so that the items to be packaged can be pushed into the bag.

[0016] The structure and working principle of the bag-supporting mechanism A are explained in detail below.

[0017] like Figure 1 and Figure 2 As shown, the bag supporting mechanism A includes a left bag supporting assembly and a right bag supporting assembly; the left bag supporting assembly includes a left bag supporting hand 21, a left rotating shaft 31, a left rotating shaft seat 41 and a left gear 51, the left bag supporting hand 21 is mounted on one end of the left rotating shaft 31, the left gear 51 is mounted on the other end of the left rotating shaft 31, the left rotating shaft 31 is rotatably mounted on the left rotating shaft seat 41, and the left rotating shaft seat 41 is mounted on the support 1, so that the rotation of the left rotating shaft 31 can drive the left bag supporting hand 21 to rotate; similarly, the right bag supporting assembly includes a right bag supporting hand 22, a right rotating shaft 32, a right rotating shaft seat 42 and a right gear 52, the right bag supporting hand 22 is mounted on one end of the right rotating shaft 32, the right gear 52 is mounted on the other end of the right rotating shaft 32, the right rotating shaft 32 is rotatably mounted on the right rotating shaft seat 42, and the right rotating shaft seat 42 is mounted on the support 1, In this way, the rotation of the right rotating shaft 32 can drive the right bag holding hand 22 to rotate; in order to drive the rotating shaft to rotate, a first transmission mechanism and a second transmission mechanism are installed on the support 1; the first transmission mechanism includes a first rack 61 and a first bag holding power source 71 that drives the first rack 61 to move, the first rack 61 is meshed with the right gear 52, and through the drive of the first bag holding power source 71, the first rack 61 moves to drive the right gear 52 to rotate, so that the right rotating shaft 32 drives the right bag holding hand 22 to rotate; the second transmission mechanism includes a second rack 62 and a second bag holding power source 72 that drives the second rack 62 to move, the second rack 62 is meshed with the left gear 51, and through the drive of the second bag holding power source 72, the second rack 62 moves to drive the left gear 51 to rotate, so that the left rotating shaft 31 rotates with the left bag holding hand 21; Figure 3As shown, when the left bag holding handle 21 and the right bag holding handle 22 rotate synchronously, the front end of the left bag holding handle 21 and the front end of the right bag holding handle 22 have a first state in which they are relatively close to each other and a second state in which they are relatively far apart ( Figure 3 The midpoint line is the movement trajectory of the bag-opening hands). When the two bag-opening hands are relatively close, the front ends of the two bag-opening hands are relatively far away, and the front ends of the two bag-opening hands gradually move forward, so that the two bag-opening hands can enter the bag. When the front ends of the two bag-opening hands are opened to the maximum distance, the two bag-opening hands can open the bag. This type of bag-opening device only needs one action to complete the bag-opening work, so it is faster, the structure is more stable, and the cost is lower.

[0018] In order to adjust the upper and lower positions of the two bag-opening arms to meet the bag-opening requirements of bags of different sizes, such as Figure 1 As shown, the left bag holding handle 21 is installed on the left adjusting seat 91, and the left adjusting seat 91 is installed on the left rotating shaft 31 so as to be movable up and down. By adjusting the up and down position of the left adjusting seat 91, the up and down position of the left bag holding handle 21 can be adjusted; similarly, the right bag holding handle 22 is installed on the right adjusting seat 92, and the right adjusting seat 92 is installed on the right rotating shaft 32 so as to be movable up and down. By adjusting the up and down position of the right adjusting seat 92, the up and down position of the right bag holding handle 22 can be adjusted.

[0019] The left and right positions of the two bag-opening hands can be adjusted to meet the bag-opening requirements of bags of different sizes, such as Figure 1 As shown, the support 1 has a transverse long slot 10, and the left rotating shaft 31 and the right rotating shaft 32 both pass through the transverse long slot 10. The left rotating shaft seat 41 and the right rotating shaft seat 42 are both installed on the support 1 so as to be movable and adjustable left and right. By adjusting the positions of the left rotating shaft seat 41 and the right rotating shaft seat 42 on the support 1, the left and right positions of the left bag holding handle 21 and the right bag holding handle 22 can be adjusted.

[0020] like Figure 1 As shown, the left bag support handle 21 and the right bag support handle 22 are both in the shape of long arcs, and the inner arc surface of the left bag support handle 21 is arranged opposite to the inner arc surface of the right bag support handle 22. In this way, when the bag is opened, both sides are in the shape of arcs, which can not only maximize the opening of the bag, but also reduce the force of the bag support handle on the bag, thereby minimizing the impact on the bag.

[0021] In order to ensure that the items are neatly arranged before being pushed in, the rear end of the left bag support handle 21 has a left guide surface 23 inclined to the left, and the rear end of the right bag support handle 22 has a right guide surface 24 inclined to the right. When the items are pushed forward by the pushing mechanism, if the items are not neatly arranged, the left guide surface 23 of the left bag support handle 21 and the right guide surface 24 of the right bag support handle 22 can arrange the left and right sides of the items neatly, so as to ensure that the items can enter the bag.

[0022] like Figure 2As shown, a first guide seat 81 is installed on the support 1, and the first rack 61 is movably arranged in the guide hole of the first guide seat 81, and the first guide seat 81 guides the movement of the first rack 61; similarly, a second guide seat 82 is installed on the support 1, and the second rack 62 is movably arranged in the guide hole of the second guide seat 82, and the second guide seat 82 guides the movement of the second rack 62.

[0023] like Figure 1 and Figure 2 As shown, multiple groups of bag-supporting mechanisms A are provided and arranged side by side, and the right gear 52 of each group of bag-supporting mechanisms A meshes with the first rack 61, and the left gear 51 of each group of bag-supporting mechanisms A meshes with the second rack 62. In this way, only two power sources are needed to drive multiple groups of bag-supporting mechanisms A to operate, which greatly improves production efficiency without increasing costs.

Claims

1. A high-stability rack bag-supporting device, comprising a support (1) and a bag-supporting mechanism (A), wherein the bag-supporting mechanism (A) comprises a left bag-supporting component and a right bag-supporting component; characterized in that: The left bag supporting assembly comprises a left bag supporting hand (21), a left rotating shaft (31), a left rotating shaft seat (41) and a left gear (51); the left bag supporting hand (21) is mounted on one end of the left rotating shaft (31); the left gear (51) is mounted on the other end of the left rotating shaft (31); the left rotating shaft (31) is rotatably mounted on the left rotating shaft seat (41); and the left rotating shaft seat (41) is mounted on the support (1); the right bag supporting assembly comprises a right bag supporting hand (22), a right rotating shaft (32), a right rotating shaft seat (42) and a right gear (52); the right bag supporting hand (22) is mounted on one end of the right rotating shaft (32); the right gear (52) is mounted on the other end of the right rotating shaft (32); the right rotating shaft (32) The invention is rotatably mounted on a right rotating shaft seat (42), and the right rotating shaft seat (42) is mounted on a support (1); a first transmission mechanism and a second transmission mechanism are mounted on the support (1); the first transmission mechanism comprises a first rack (61) and a first bag-holding power source (71) for driving the first rack (61) to move, and the first rack (61) is meshed with a right gear (52); the second transmission mechanism comprises a second rack (62) and a second bag-holding power source (72) for driving the second rack (62) to move, and the second rack (62) is meshed with a left gear (51); the front end of the left bag-holding hand (21) and the front end of the right bag-holding hand (22) have a first state of being relatively close to each other and a second state of being relatively far apart from each other.

2. A high stability rack bag support device according to claim 1, characterized in that: The left bag holding handle (21) is mounted on a left adjustment seat (91), and the left adjustment seat (91) is mounted on a left rotating shaft (31) so as to be movable up and down; the right bag holding handle (22) is mounted on a right adjustment seat (92), and the right adjustment seat (92) is mounted on a right rotating shaft (32) so as to be movable up and down.

3. A high stability rack bag support device according to claim 1, characterized in that: The support (1) has a transverse long slot (10), the left rotating shaft (31) and the right rotating shaft (32) both pass through the transverse long slot (10), and the left rotating shaft seat (41) and the right rotating shaft seat (42) are both mounted on the support (1) so as to be movable and adjustable left and right.

4. A high stability rack bag support device according to claim 1, characterized in that: The left bag supporting handle (21) and the right bag supporting handle (22) are both in the form of long arc surfaces, and the inner arc surface of the left bag supporting handle (21) and the inner arc surface of the right bag supporting handle (22) are arranged opposite to each other.

5. A high stability rack bag support device according to claim 1, characterized in that: The rear end of the left bag holding hand (21) has a left guide surface (23) inclined toward the left side, and the rear end of the right bag holding hand (22) has a right guide surface (24) inclined toward the right side.

6. A high stability rack bag support device according to claim 1, characterized in that: A first guide seat (81) is mounted on the support (1), and the first rack (61) is movably disposed in a guide hole of the first guide seat (81); a second guide seat (82) is mounted on the support (1), and the second rack (62) is movably disposed in a guide hole of the second guide seat (82).

7. A high stability rack bag support device according to claim 1, characterized in that: The bag-supporting mechanisms (A) are provided in multiple groups and are arranged side by side. The right gear (52) of each group of bag-supporting mechanisms (A) meshes with the first rack (61), and the left gear (51) of each group of bag-supporting mechanisms (A) meshes with the second rack (62).

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