Packaging machine

Abstract

The utility model belongs to the field of material packaging equipment, and discloses a packaging machine which comprises a rotating component, a packaging bag carrier and a posture control mechanism, the rotating axial direction of the rotating component is arranged in the transverse direction, and the packaging bag carrier is rotationally connected in the rotating circumferential direction of the rotating component. The first transmission wheel can rotate relative to the rotating component through rotation of the rotating component, the second transmission wheel connected with the packaging bag carrier is driven at the same rotating speed through rotation of the first transmission wheel in the opposite direction relative to the rotating component, and therefore the second transmission wheel can rotate in the opposite direction relative to the rotating component. Further, the packaging bag carrier can rotate in the opposite direction, material packaging is conducted in the preset posture that the posture is kept unchanged and the opening of the packaging bag faces upwards, and the advancing path length of the packaging bag on the plane in the packaging process can be greatly shortened through circumferential rotation switching, so that the overall size of the packaging machine is reduced; and meanwhile, the working efficiency is also improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to material packaging equipment technical field, and specifically relates to a packaging machine. BACKGROUND

[0002] In prior art, a common packaging machine is a straight pushing bagging packaging machine, which is to put material into a chute, push the material in the chute to the bag opening of a packaging bag sleeved on a clamp by a pushing mechanism, clamp the packaging bag with material on the clamp by a bag clamping mechanism and move it to a heat sealing mechanism along a straight line for heat sealing, and then discharge the material to complete the packaging of the packaging bag. However, this straight pushing bagging packaging machine occupies a large space, the packaging bag travels a long path during the whole packaging process, and only a small amount of packaging bags can be packaged each time. Although the clamp is designed to be turned or rotated in other prior art to shorten the switching time between the bagging and material loading stations, the overall volume and occupied space are not significantly reduced, and the work efficiency is reduced. Moreover, it is not suitable for liquid materials. SUMMARY

[0003] Therefore, the utility model aims to provide a packaging machine to solve the problems of large volume and low work efficiency caused by the long travel path of the packaging bag during the packaging process of the prior packaging machine.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A packaging machine comprises a rotating member, a packaging bag carrier and a posture control mechanism, the rotating axis of the rotating member is arranged in a transverse direction, and the packaging bag carrier is rotationally connected to the rotating member in the rotating circumferential direction of the rotating member;

[0006] The posture control mechanism comprises a transmission wheel one and a transmission wheel two, the transmission wheel one is arranged on the rotating axis of the rotating member, and is arranged in a stationary manner, the transmission wheel two is connected to the packaging bag carrier, the transmission wheel one and the transmission wheel two are drivingly connected, the rotating member rotates at the same speed as the transmission wheel one but in the opposite direction, and the transmission wheel two rotates at the same speed as the rotating member but in the opposite direction, so as to maintain the preset posture of the bag opening facing upward during the rotation of the packaging bag carrier with the rotating member.

[0007] In a possible implementation, the transmission wheel one and the transmission wheel two are both gears or pulleys, a transition wheel is arranged between the transmission wheel one and the transmission wheel two, and the transmission wheel one drives the transmission wheel two through the transition wheel.

[0008] In a possible implementation, the parameters of the transmission wheel one are consistent with those of the transmission wheel two.

[0009] In a possible implementation, an upper bagging station is arranged in the rotation direction of the rotating member, and the upper bagging station is provided with a bagging mechanism which turns the bag opening upward when the transversely oriented packaging bag is conveyed to the upper bagging station.

[0010] In a possible implementation, the bagging mechanism comprises a swing arm, a driving member one and a bag clamping component, the driving member one drives the swing arm to rotate, the middle part of the swing arm is hinged to the bag clamping component, the end of the bag clamping component away from the clamping part is hinged to a constraint connecting rod, and the constraint connecting rod is arranged above the hinge center of the swing arm.

[0011] In a possible implementation, a filling station is arranged in the rotation direction of the rotating member, and the filling station is provided with a discharging mechanism, the discharging mechanism comprises a material pump and a vertically arranged discharging pipe which is in communication with the material pump, and two bag opening assemblies one are arranged below the discharging pipe.

[0012] In a possible implementation, a heat sealing station is arranged in the rotation direction of the rotating member, and the heat sealing station is provided with a heat sealing mechanism for heat sealing the packaging bag after discharging, the heat sealing mechanism comprises a fixed heat sealing part, a movable heat sealing part and a driving device one, and the driving device one drives the movable heat sealing part to turn and clamp relative to the fixed heat sealing part between a avoiding position and a working position.

[0013] Alternatively, a transferring station is arranged in the rotation direction of the rotating member, and the transferring station is provided with a transferring mechanism for transferring the packaging bag after filling to the vacuumizing mechanism.

[0014] In a possible implementation, a delivery station is arranged in the rotation direction of the rotating member, and the delivery station is provided with a packaging bag conveying mechanism.

[0015] In a possible implementation, the packaging bag carrier comprises a plurality of bag clamping assemblies which are distributed along a first direction parallel to the axial direction of the rotating member.

[0016] In a possible implementation, the bag clamping assembly comprises two clamping parts and a transmission shaft which is in transmission connection with the two clamping parts to make clamping action, and the transmission shaft is connected with a gear one; a driving device two is arranged in the upper bagging station, the driving device two comprises a driving motor one and an incomplete gear which is driven by the driving motor one, the incomplete gear is partially engaged with the gear one, and the driving motor one drives the incomplete gear to switch between a avoiding position and a transmission position in the circumferential direction.

[0017] Alternatively, the bag clamping assembly includes an opening clamping assembly, a bag opening assembly, a second driving device, and two clamping parts. The two clamping parts are used to clamp both sides of the packaging bag. The second driving device includes a first driving member and a second driving member arranged concentrically. The first driving member drives all bag clamping assemblies to switch synchronously between an extended bag state and a retracted bag state. The second driving member drives the two clamping parts of all bag clamping assemblies to switch synchronously between an open clamping state and a closed clamping state.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The packaging machine of this utility model can cause the first transmission wheel to rotate relative to the rotating component by rotating the rotating component. The first transmission wheel rotates in the opposite direction relative to the rotating component at the same speed to drive the second transmission wheel connected to the packaging bag carrier. In this way, the second transmission wheel can rotate in the opposite direction relative to the rotating component, thereby realizing the reverse rotation of the packaging bag carrier and maintaining the preset posture of the packaging bag opening facing upward for material packaging. Furthermore, the circumferential rotation switching can significantly reduce the length of the packaging bag's travel path on the plane during the packaging process, thereby reducing the overall size of the packaging machine and improving work efficiency.

[0020] Furthermore, by setting multiple stations, including bag loading and material filling stations, on the circumferential rotation of the rotating component, and cooperating with the attitude control mechanism to maintain the attitude of the packaging bag opening always facing upwards, processes such as bag loading, material filling, heat sealing, and shipping can be carried out. This enables cyclical rotational conveying and continuous packaging, improving work efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the connection structure of a rotating component, a packaging bag carrier, and a posture control mechanism in a packaging machine. The schematic diagram shows a gear transmission implementation structure of the posture control mechanism.

[0022] Figure 2 for Figure 1 The front view of the attitude control structure shown;

[0023] Figure 3 This is a schematic diagram of the connection structure of a rotating component, a packaging bag carrier, and a posture control mechanism in a packaging machine. The diagram shows another belt drive implementation structure of the posture control mechanism.

[0024] Figure 4 for Figure 3 A side view of the attitude control mechanism shown;

[0025] Figure 5 This is a schematic diagram of the circumferential distribution of the rotating components of a packaging machine.

[0026] Figure 6 is a perspective view of a turnover bag feeding mechanism of a packaging machine and a packaging bag carrier;

[0027] Figure 7 is a side view of the structure shown in Figure 6

[0028] Figure 8 is a schematic diagram of a principle of a turnover bag feeding mechanism of a packaging machine;

[0029] Figure 9 is a perspective view of a blanking mechanism of a packaging machine;

[0030] Figure 10 is a perspective view of a heat sealing mechanism of a packaging machine;

[0031] Figure 11 is a partial exploded view of an embodiment structure of a packaging bag carrier of a packaging machine;

[0032] Figure 12 is a schematic diagram of another embodiment structure of a packaging bag carrier of a packaging machine;

[0033] Figure 13 is a sectional perspective view of the embodiment structure shown in Figure 12

[0034] In the figure: 0 - packaging bag; 01 - bag feeding station; 02 - charging station; 03 - heat sealing station; 04 - delivery station; 2 - rotating member; 3 - posture control mechanism; 31 - transmission wheel one; 32 - transmission wheel two; 33 - transition wheel; 34 - transmission belt; 4 - packaging bag carrier; 41 - gear one; 42 - clamping part; 43 - transmission shaft; 44 - cam member; 45 - pressing rod; 46 - movable shaft; 47 - spring; 48 - first driving member; 49 - second driving member; 410 - clamping opening driving rod; 411 - cam member two; 412 - gear three; 413 - bag opening driving rod; 414 - gear two; 5 - turnover bag feeding mechanism; 51 - swing arm; 52 - bag clamping part; 53 - constraint connecting rod; 6 - blanking mechanism; 61 - material pump; 62 - discharge pipe; 63 - bag opening assembly one; 7 - heat sealing mechanism; 71 - driving device one; 72 - movable heat sealing part; 73 - heat sealing block; 74 - fixed heat sealing part. DETAILED DESCRIPTION

[0035] In order for those skilled in the art to better understand the technical scheme of the present application, the present application will be further described in detail below in combination with specific embodiments.

[0036] Please refer to Figures 1-13 ​​As shown, the embodiment of the present application provides a packaging machine, which comprises a rotating member 2, a packaging bag carrier 4 and a posture control mechanism 3, the rotating axis of the rotating member 2 is arranged in the transverse direction, and the packaging bag carrier 4 is rotationally connected to the rotating member 2 in the rotating circumferential direction.

[0037] The packaging machine is a bagging packaging machine, which realizes the packaging of materials through processes such as bagging, filling and heat sealing, and the packaging bag carrier 4 is rotationally arranged and can carry the packaging bag 0 and drive the packaging bag to move between different stations along with the rotating member 2. The rotating member 2 is used to switch the packaging bag 0 on the packaging bag carrier 4 between different stations through rotation, so as to perform processes such as bagging, filling and heat sealing, and the rotating axis of the rotating member 2 is arranged in the transverse direction, which facilitates the parallel expansion of multiple stations, can simultaneously perform packaging processing of multiple stations, improves the packaging processing efficiency, and has a compact structure and occupies a small space. The posture control mechanism 3 is used to control the packaging bag carrier 4 to maintain a preset posture between different stations, so as to facilitate the corresponding processes in different stations.

[0038] In the embodiment of the present application, the posture control mechanism 3 comprises a transmission wheel one 31 and a transmission wheel two 32, the transmission wheel one 31 is arranged on the rotating axis of the rotating member 2, the transmission wheel one 31 is arranged in a static state, the transmission wheel two 32 is connected to the packaging bag carrier 4, the transmission wheel one 31 is in transmission connection with the transmission wheel two 32, the rotating member 2 rotates at the same speed and in the opposite direction relative to the transmission wheel one 31, and the transmission wheel two 32 rotates at the same speed and in the opposite direction relative to the rotating member 2, so as to maintain the preset posture of the bag opening upward during the rotation of the packaging bag carrier 4 along with the rotating member 2.

[0039] Among them, the transmission wheel one 31 is arranged in a static state, the rotating member 2 can rotate or can rotate under the drive of a power device, so that the transmission wheel one 31 will rotate in the opposite direction during the rotation of the rotating member 2, and the rotating member 2 and the transmission wheel one 31 rotate at the same speed and in the opposite direction during this process; based on this, in order to utilize the relative rotation force of the transmission wheel one 31 relative to the rotating member 2, the transmission wheel one 31 is in transmission connection with the transmission wheel two 32 arranged on the packaging bag carrier 4, and the transmission wheel two 32 rotates at the same speed and in the opposite direction relative to the rotating member 2, in this case, the packaging bag carrier 4 will rotate with the rotating member 2 in a fixed and unchanged preset posture, and the bag opening of the packaging bag 0 is upward in this posture, and the material packaging is also performed in this posture during the packaging process, and the problem of needing to set an additional power mechanism to drive the transmission wheel two 32 can be avoided, thereby reducing the cost.

[0040] Through the above technical solution, the rotation of the rotating component 2 can cause the transmission wheel 31 to rotate relative to the rotating component 2. The transmission wheel 31 rotates in the opposite direction relative to the rotating component 2 at the same speed to drive the transmission wheel 32 connected to the packaging bag carrier 4. In this way, the transmission wheel 32 can rotate in the opposite direction relative to the rotating component 2, thereby realizing the reverse rotation of the packaging bag carrier 4 and maintaining the preset posture with the packaging bag 0 opening facing upward for material packaging. Furthermore, the circumferential rotation switching can significantly reduce the travel path length of the packaging bag 0 on the plane during the packaging process, thereby reducing the overall size of the packaging machine and improving work efficiency.

[0041] In some embodiments, both the first transmission wheel 31 and the second transmission wheel 32 are gears or pulleys, and a transition wheel 33 is provided between the first transmission wheel 31 and the second transmission wheel 32, through which the first transmission wheel 31 drives the second transmission wheel 32.

[0042] In order for the second transmission wheel 32 to rotate at the same speed and in the same direction as the first transmission wheel 31, the first transmission wheel 31 and the second transmission wheel 32 can be gears and pulleys, and the direction can be reversed through the intermediate transition wheel 33. In this way, the second transmission wheel 32 can rotate at the same speed and in the same direction as the first transmission wheel 31, and the packaging bag carrier 4 can also rotate synchronously. This allows the packaging bag 0 to maintain a preset posture and move between multiple workstations in the circumferential direction of the rotating component 2.

[0043] Preferably, the parameters of the first transmission wheel 31 are consistent with those of the second transmission wheel 32. These parameters include at least diameter and tooth pitch, all of which must remain consistent to achieve synchronous transmission at the same rotational speed. Of course, in other embodiments, multiple transition wheels 33 or other transmission structures can be combined to achieve the same final rotational speed but opposite rotational directions, and this is not a limitation.

[0044] To illustrate this better, for example, combining Figure 1 and Figure 2 As shown, in the embodiment where transmission wheel 31 and transmission wheel 32 are gear-structured, transmission wheel 31 transmits power to transmission wheel 32 via a transition wheel 33, which is also a gear structure. For example, if transmission wheel 31 rotates counterclockwise relative to the rotating member 2, the transition wheel 33, being meshed between transmission wheel 31 and transmission wheel 32, will rotate in the opposite direction, i.e., clockwise. Correspondingly, when the transition wheel 33 rotates clockwise, transmission wheel 32 will rotate counterclockwise. At this time, transmission wheel 32 rotates in the same direction as transmission wheel 31, thus achieving co-directional transmission. Figure 3 and Figure 4As shown, in the embodiment of the belt wheel structure as the transmission wheel one 31 and the transmission wheel two 32, the transmission wheel one 31 drives the transmission wheel two 32 through the transition wheel 33 which is also the belt wheel structure and the transmission belt 34, and the transmission belt 34 needs to be diverted through the transition wheel 33, for example, the transmission wheel one 31 rotates counterclockwise relative to the rotating member 2, and the transition wheel 33 rotates clockwise due to being connected between the transmission wheel one 31 and the transmission wheel two 32 through the transmission belt 34, and accordingly, the transmission wheel two 32 rotates counterclockwise when the transition wheel 33 rotates clockwise, and at this time, the transmission wheel two 32 rotates in the same direction as the transmission wheel one 31, so as to realize the same direction transmission.

[0045] When a plurality of groups of the packaging bag carriers 4 are arranged in the circumferential direction of the rotating member 2, in the gear transmission structure, the transmission wheel one 31 drives one transmission wheel two 32 through one transition wheel 33, and in the belt wheel transmission structure, the transmission wheel one 31 and two transmission wheel two 32 are driven through one transition wheel 33 respectively, and the transmission wheel two 32 can be driven through the same transmission belt 34.

[0046] Please refer to Figure 5 As shown, in the embodiment of the present application, a plurality of workstations are arranged in the rotating circumferential direction of the rotating member 2, and the rotating member 2 drives the packaging bag carrier 4 thereon to move and switch between the workstations, and the plurality of workstations can include one or more of the bag loading workstation 01, the material loading workstation 02, the heat sealing workstation 03 and the delivery workstation 04.

[0047] In an embodiment, in combination with Figures 5-8 As shown, the bag loading workstation 01 is arranged in the rotating circumferential direction of the rotating member 2, and the bag loading workstation 01 is provided with the turnover bag loading mechanism 5, and the turnover bag loading mechanism 5 turns the packaging bag 0 with the bag opening horizontally into the packaging bag 0 with the bag opening upwardly when the packaging bag 0 is delivered to the bag loading workstation 01.

[0048] The bag loading workstation 01 loads the packaging bag 0 through the turnover bag loading mechanism 5, that is, loads the packaging bag 0 on the packaging bag carrier 4. Since the packaging bag 0 on the packaging bag carrier 4 is in the posture with the bag opening upwardly, and most of the packaging bags 0 are stored horizontally, in order to load the packaging bag 0 horizontally on the packaging bag carrier 4 into the posture vertically with the bag opening upwardly, the turnover bag loading mechanism 5 is used for loading, and the horizontal packaging bag 0 can be adjusted into the vertical posture with the bag opening upwardly in the loading process through the turnover, that is, the turnover of the packaging bag 0 can be realized. In the specific implementation process, the existing mechanical structure which can be turned over and moved can be used, and a bag clamping mechanism can be arranged at the end thereof.

[0049] In a preferred embodiment of the bag turning mechanism 5, the bag turning mechanism 5 comprises a swing arm 51, a driving member I driving the swing arm 51 to rotate, and a bag clamping component 52, a middle part of the swing arm 51 being hinged to the bag clamping component 52, and an end of the bag clamping component 52 away from the clamping part 42 being hinged to a constraint connecting rod 53, the constraint connecting rod 53 being rotatably arranged above the hinged center of the swing arm 51.

[0050] The swing arm 51 is rotatably arranged and driven to rotate by the driving member I, and the swing arm 51 can drive the hinged point of the swing arm 51 and the bag clamping component 52 to rotate around the rotation center of the swing arm 51, and since an end of the bag clamping component 52 is constrained by the rotatably arranged constraint connecting rod 53, the bag clamping component 52 can switch the bag opening from horizontal to vertical, so as to realize the turning of the packaging bag 0 from horizontal to vertical with the bag opening upward, thereby realizing the turning of the packaging bag 0. Specifically, the driving member I can use a motor or the like as a driving source.

[0051] In order to facilitate the loading of materials into the packaging bag 0 with the bag opening upward, in combination with Figure 9 As shown, further, the rotation member 2 is provided with a loading station 02 in the rotation circumference, and the loading station 02 is provided with a discharging mechanism 6, the discharging mechanism 6 comprising a material pump 61 and a vertical discharge pipe 62 in communication with the material pump 61, and the discharge pipe 62 being provided with an opening bag assembly I 63 on both sides below.

[0052] In this way, the discharging mechanism 6 on the loading station can discharge materials into the packaging bag 0 when the packaging bag carrier 4 moves to the loading station, and the discharging mechanism 6 is aligned vertically with the packaging bag 0, so as to realize the loading of materials. In the specific implementation process, the materials can be fixed materials or liquid materials, and are not limited. The discharging mechanism 6 is preferably a discharging mechanism 6 for liquid material loading, for example, the discharging mechanism 6 comprises a material pump 61 and a discharge pipe 62 in communication with the material pump 61, the discharge pipe 62 being vertically arranged and located directly above the packaging bag carrier 4 when the packaging bag carrier 4 is in the loading station 02, and when the packaging bag 0 is below, the material pump 61 starts to control the discharging of materials from the discharge pipe 62 into the packaging bag 0. At the same time, the opening bag assembly I 63 such as a vacuum suction cup can be arranged on both sides below the discharge pipe 62, and the opening bag assembly I 63 on both sides can make the bag opening on both sides be adsorbed to better open the bag opening, thereby better loading the materials.

[0053] Further, in combination with Figure 10As shown, the heat sealing station 03 is arranged in the rotation direction of the rotating member 2, and the heat sealing station 03 is provided with a heat sealing mechanism 7 for heat sealing the packaging bag 0 after the material is fed. The heat sealing mechanism 7 includes a fixed heat sealing part 74, a movable heat sealing part 72, and a driving device 71. The driving device 71 drives the movable heat sealing part 72 to flip and clamp relative to the fixed heat sealing part 74 between a avoiding position and a working position.

[0054] The heat sealing mechanism 7 on the heat sealing station 03 heat seals the packaging bag 0 on the packaging bag carrier 4. Since the bag opening of the packaging bag 0 is upward, the heat sealing mechanism 7 can heat seal the bag opening of the packaging bag 0 by flipping. Specifically, the heat sealing mechanism 7 mainly includes the fixed heat sealing part 74, the movable heat sealing part 72, and the driving device 71. The fixed heat sealing part 74 is fixedly arranged on the heat sealing station 03 and located on one side of the bag opening of the packaging bag 0. The driving device 71 is connected to the movable heat sealing part 72 and is used to drive the movable heat sealing part 72 to switch between the working position and the avoiding position. When the movable heat sealing part 72 is in the avoiding position, it is located above the fixed heat sealing part 74. When the movable heat sealing part 72 is in the working position, it flips to the opposite side of the fixed heat sealing part 74 and clamps the bag opening of the packaging bag 0. The bag opening can be fused at high temperature to realize heat sealing of the bag opening.

[0055] Specifically, the movable heat sealing part 72 is in L-shaped structure, one end of which is hinged above the fixed heat sealing part 74, and the inner side of the other end is provided with a heat sealing block 73. Under the driving of the driving device 71 such as a linear cylinder, the movable heat sealing part 72 can rotate around the hinge point and flip to the opposite side of the heat sealing block 73 of the fixed heat sealing part 74, so as to heat seal the bag opening of the packaging bag 0 with the bag opening upward.

[0056] In other embodiments, the heat sealing can also be performed by an external heat sealing mechanism 7. For example, a transfer station is arranged in the rotation direction of the rotating member 2. The transfer station is provided with a transfer mechanism for transferring the packaging bag 0 after the material is fed to a vacuumizing mechanism. The transfer station can facilitate the arrangement of the transfer mechanism such as a mechanical hand with bag clamping function. The transfer mechanism can clamp and move the packaging bag 0 after the material is fed to the vacuumizing mechanism. The vacuumizing mechanism can form a vacuum environment inside or outside the packaging bag 0. In the vacuum environment, the heat sealing is performed. In this environment, the air in the packaging bag 0 is discharged in large amount, reducing the content of oxygen and other gases, which can effectively inhibit the growth of aerobic microorganisms and the oxidation reaction of the product.

[0057] The packaging bag 0 needs to be delivered after heat sealing, so a delivery station 04 can be arranged on the rotating circumference of the rotating member 2, and the delivery station 04 is provided with a packaging bag 0 conveying mechanism. By arranging the delivery station 04, the packaging bag 0 conveying mechanism on the delivery station can be used to deliver the packaging bag 0 after heat sealing. Specifically, the packaging bag 0 conveying mechanism can be a conveying belt, for example, the conveying belt mechanism is arranged below the heat sealing mechanism 7, and the packaging bag 0 can fall onto the conveying belt mechanism after heat sealing and be conveyed outwards for delivery.

[0058] In order to realize batch bag clamping operation, the packaging bag carrier 4 comprises a plurality of bag clamping assemblies arranged in a first direction parallel to the axis of the rotating member 2. Meanwhile, the bag loading station 01 is provided with a bag loading mechanism corresponding to the number of bag clamping assemblies, and the charging station 02 is also provided with a charging mechanism corresponding to the number of bag clamping assemblies, so that after one rotation of the rotating member 2, the batch packaging bag 0 can be packaged, and the work efficiency can be greatly improved.

[0059] In a preferred embodiment of the bag clamping assembly, the bag clamping assembly comprises two clamping parts 42 and a transmission shaft 43 connected with the two clamping parts 42 for clamping action, and the transmission shaft 43 is connected with a gear one 41. Figure 11 As shown, the bag clamping assembly comprises two clamping parts 42 and a transmission shaft 43 connected with the two clamping parts 42 for clamping action, and the transmission shaft 43 is connected with a gear one 41; the bag loading station 01 is provided with a driving device two, which comprises a driving motor one and an incomplete gear driven by the driving motor one, and the incomplete gear is partially engaged with the gear one 41, and the driving motor one drives the incomplete gear to switch between the avoiding position and the transmission position in the circumferential direction.

[0060] The packaging bag carrier 4 mainly comprises a bag clamping assembly for clamping the packaging bag 0. The two clamping parts 42 of the bag clamping assembly are clamped by the transmission shaft 43, and the transmission shaft 43 is connected with a gear one 41, which is used to engage with the incomplete gear of the driving device two. Since the transmission part of the driving device one is an incomplete gear, the incomplete gear can switch between the transmission position and the avoiding position in the circumferential direction by rotating, that is, when the teeth of the incomplete gear rotate to the transmission position, the gear one 41 can be engaged, and the clamping of the bag clamping assembly can be driven by rotating. When the teeth of the incomplete gear rotate to the other side, the area without teeth will not engage with the gear one 41, so as not to interfere or transmit the gear one 41, realizing selective avoiding and transmission. In this way, the driving device two can be arranged outside the rotating member 2 or the packaging bag carrier 4, so as to reduce the weight and structural complexity of the bag clamping assembly.

[0061] In another preferred embodiment of the bag clamping assembly, the bag clamping assembly comprises two clamping parts 42 and a transmission shaft 43 connected with the two clamping parts 42 for clamping action, and the transmission shaft 43 is connected with a gear one 41. Figure 12 and Figure 13As shown, the bag clamping assembly comprises an opening clamping assembly, an opening bag assembly, a second driving device and two clamping parts for clamping two sides of the packaging bag 0, the second driving device comprises a first driving member 48 and a second driving member 49 arranged concentrically, the first driving member 48 drives the synchronous switching of all bag clamping assemblies between the bag opening state and the bag shrinking state, and the second driving member 49 drives the synchronous switching of the two clamping parts of all bag clamping assemblies between the opening clamping state and the closing clamping state.

[0062] In this embodiment, the first driving member 48 and the second driving member 49 of the second driving device are arranged concentrically, that is, the first driving member 48 and the second driving member 49 are sleeved with each other, which can effectively save space and facilitate power transmission and distribution. The axial movement or rotation of the first driving member 48 drives the synchronous switching of all bag clamping assemblies between the bag opening state and the bag shrinking state through the opening bag assembly, and the axial movement or rotation of the second driving member 49 drives the synchronous switching of the two clamping parts of all bag clamping assemblies between the opening clamping state and the closing clamping state through the opening clamping assembly.

[0063] Specifically, the first driving member 48 is sleeved on the inner side of the second driving member 49 and can rotate relatively, the first driving member 48 is connected with a gear one 41, the gear one 41 is engaged with a gear two 414 on the upper end of the opening clamping driving rod 410 of the opening clamping assembly, and the opening clamping driving rod 410 is drivingly connected with the two clamping parts and drives the clamping parts to make the opening clamping action, and the driving connection mode can be that a cam and an elastic pressing piece cooperate to drive one clamping part to make the opening clamping action relative to the other clamping part to realize the bag clamping; the second driving member 49 is connected with the opening bag driving rod 413, the opening bag driving member is provided with a first thread and a second thread respectively threadedly matched with the two clamping parts, the directions of the first thread and the second thread are opposite, and through this thread matching structure, when the opening bag driving rod 413 rotates, the two clamping parts can be relatively close or away from each other, so as to adjust the distance between the two clamping parts of each bag clamping assembly, and realize the opening and shrinking actions of the packaging bag 0. For example, in the bag opening state, the positive rotation of the first driving member 48 drives the opening bag driving rod 413 to drive the two clamping parts to be away from each other, and the packaging bag 0 is opened; in the bag shrinking state, the reverse rotation of the first driving member 48 drives the two clamping parts to be close to each other, and the packaging bag 0 is tightened, so as to carry out the subsequent packaging operation.

[0064] In the specific implementation process, the rotating member 2 is rotatably arranged on the rack, and the rotation thereof is driven by the first driving mechanism. The main rotating shaft of the first driving mechanism is connected with the two rotating members 2, a plurality of groups of the packaging bag carriers 4 are arranged between the two rotating members 2, and the mechanism corresponding to each station is arranged on the rack along the circumferential direction of the rotating member 2. The rotation of the rotating member 2 can drive the packaging bag carrier 4 to cyclically and reciprocally convey. The posture of the packaging bag clamped by the packaging bag carrier 4 needs to be kept vertical during the conveying process. If the first driving member 48 and the second driving member 49 are arranged in a concentric manner, the motion trajectories of the first driving member 48 and the second driving member 49 will cross, which may cause unstable driving of the mechanism. If the first driving member 48 and the second driving member 49 are arranged in a concentric manner, in addition to the compact structure layout, the component arrangement and the stable operation of the mechanism are also facilitated.

[0065] The above is only the preferred embodiment of the present application, and it should be pointed out that the above preferred embodiment should not be regarded as the limitation of the present application, and the protection scope of the present application should be limited by the scope defined by the claims. For ordinary skilled in the art, some improvements and refinements can be made without departing from the spirit and scope of the present application, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A packaging machine, characterized in that The application relates to a packaging bag loading device, which comprises a rotating member, a packaging bag carrier and a posture control mechanism, the rotating axis of the rotating member is arranged in a transverse direction, and the rotating member is rotationally connected with the packaging bag carrier in the rotating circumferential direction of the rotating member. The posture control mechanism comprises a transmission wheel I and a transmission wheel II, the transmission wheel I is arranged on the rotating axis of the rotating member, the transmission wheel I is arranged in a static state, the transmission wheel II is connected to the packaging bag carrier, the transmission wheel I and the transmission wheel II are in transmission connection, the rotating member rotates at the same speed and in the opposite direction relative to the transmission wheel I, and the transmission wheel II rotates at the same speed and in the opposite direction relative to the rotating member, so that the preset posture of the bag opening upwardly is maintained during the rotation of the packaging bag carrier along with the rotating member.

2. A packaging machine as claimed in claim 1, characterized in that The transmission wheel I and the transmission wheel II are gear wheels or belt wheels, and a transition wheel is arranged between the transmission wheel I and the transmission wheel II, and the transmission wheel I drives the transmission wheel II through the transition wheel.

3. A packaging machine as claimed in claim 2, characterized in that The parameters of the transmission wheel I and the transmission wheel II are consistent.

4. A packaging machine as claimed in claim 1, characterized in that An upper bag station is arranged in the rotating circumferential direction of the rotating member, the upper bag station is provided with a turnover upper bag mechanism, and the turnover upper bag mechanism is used for turning over the packaging bag with the bag opening in the transverse direction to the bag opening upwardly when the packaging bag is delivered to the upper bag station.

5. A packaging machine as claimed in claim 4, characterized in that The turnover upper bag mechanism comprises a swing arm, a driving member I and a bag clamping part, the swing arm is driven to rotate by the driving member I, the middle part of the swing arm is hingedly connected with the bag clamping part, one end of the bag clamping part away from the clamping part is hingedly connected with a constraint connecting rod, and the constraint connecting rod is rotationally arranged above the hinging center of the swing arm.

6. A packaging machine as claimed in claim 1, characterized in that A loading station is arranged in the rotating circumferential direction of the rotating member, the loading station is provided with a discharging mechanism, the discharging mechanism comprises a material pump and a vertical discharging pipe in communication with the material pump, and two opening bag assemblies I are arranged below the discharging pipe.

7. A packaging machine as claimed in claim 1, characterized in that A heat sealing station is arranged in the rotating circumferential direction of the rotating member, the heat sealing station is provided with a heat sealing mechanism for heat sealing the packaging bag after discharging, the heat sealing mechanism comprises a fixed heat sealing part, a movable heat sealing part and a driving device I, and the driving device I drives the movable heat sealing part to turn over and clampingly act in the avoiding position and the working position relative to the fixed heat sealing part. Alternatively, a transfer station is arranged in the rotating circumferential direction of the rotating member, and the transfer station is provided with a transfer mechanism for transferring the packaging bag after loading to a vacuumizing mechanism.

8. A packaging machine as claimed in claim 1, characterized in that A delivery station is arranged in the rotating circumferential direction of the rotating member, and the delivery station is provided with a packaging bag conveying mechanism.

9. A packaging machine as claimed in claim 1, characterized in that The packaging bag carrier comprises a plurality of bag clamping assemblies distributed in a first direction parallel to the axial direction of the rotating member.

10. A packaging machine as claimed in claim 9, characterized in that The bag clamping assembly comprises two clamping parts and a transmission shaft in transmission connection with the two clamping parts for clamping action, the transmission shaft is connected with a gear wheel I, a driving device II is arranged in the upper bag station, the driving device II comprises a driving motor I and an incomplete gear wheel driven by the driving motor I, the incomplete gear wheel is partially meshed with the gear wheel I, and the driving motor I drives the incomplete gear wheel to switch between the avoiding position and the transmission position in the circumferential direction. Alternatively, the bag clamping assembly comprises an opening-clamping assembly, an opening-bag assembly, a second driving device and two clamping parts for clamping two sides of the packaging bag, the second driving device comprises a first driving member and a second driving member arranged concentrically, the first driving member drives synchronous switching of all the bag clamping assemblies between the bag opening state and the bag shrinking state, and the second driving member drives synchronous switching of the two clamping parts of all the bag clamping assemblies between the opening-clamping state and the closing-clamping state.

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