Packaging machine

Abstract

The invention belongs to the technical field of packaging equipment, and discloses a packaging machine which comprises a bag feeding mechanism, a feeding mechanism, a station rotating mechanism, a conveying mechanism and a heat sealing mechanism, the feeding mechanism is used for feeding in the first direction, the station rotating mechanism comprises a rotary base body and a station assembly arranged on the rotary base body, and the conveying mechanism is used for conveying materials in the first direction; the rotary base body is driven by the rotary driving mechanism to rotate intermittently, the station assembly is used for placing packaging bags, and the bag feeding mechanism and the feeding mechanism are arranged at different stations of a conveying path of the station rotating mechanism respectively. Through rotation, the station assemblies used for containing packaging bags on the station assemblies can be switched to the corresponding stations so that the station assemblies can be connected with the bag feeding mechanism and the feeding mechanism in sequence for bag feeding and feeding, faster action is achieved, the working efficiency is improved, and the labor intensity of workers is lowered. And the problems of poor heat sealing quality and poor sealing effect caused by dislocation of the bag opening in the heat sealing process can be avoided through the conveying mechanism.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging equipment, and in particular relates to a packaging machine. Background Art

[0002] The bagging automatic packaging machine is a commonly used packaging equipment. It usually stacks several packaging bag raw materials in the bag storage part of the equipment, and then automatically takes out the packaging bags one by one from the bag storage part through the bag taking mechanism, and then performs the operations of bag opening, loading, sealing and discharging in sequence, and finally obtains the finished bag filled with materials and sealed.

[0003] In the prior art, a commonly used packaging machine is that the packaging bag mounted on the clamp is in a state where the bag opening is facing horizontally, and the material is pushed into the packaging bag in the horizontal direction by a pushing mechanism, and the packaging bag is separated from the clamp by the continued pushing of the pushing mechanism to enter the heat sealing station in the horizontal direction, and the packaging bag filled with material is placed flat on the support platform of the heat sealing station with the bag opening facing horizontally, and the lower bag surface of the packaging bag after the material is loaded will be in a flat state due to the support of the lower support platform, and the upper bag surface of the packaging bag will be arched by the support of the internal material, resulting in the upper bag The upper and lower bag surfaces are misaligned at the bag opening, so it is difficult to heat-seal the bag openings flush during heat sealing, affecting the heat-sealing quality and sealing effect. In addition, the clamp station of the packaging machine is fixed, and the relative direction of the clamp is the heat-sealing mechanism. The bag-loading mechanism of the packaging bag is arranged above or below the heat-sealing mechanism and the clamp station. It moves in the direction of pushing the material by downward or upward movements, and then moves horizontally to put the packaging bag on the clamp. However, this will increase the complexity and space occupied by the bag-loading mechanism, increase the bagging time, and reduce work efficiency. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a packaging machine to solve the problems of the existing packaging machine that the bag mouth is misaligned when the packaging bag is transported horizontally to the next station after filling, which is not conducive to packaging, and the clamp station is fixed, which is not conducive to rapid bagging.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A packaging machine, comprising a bag loading mechanism, a feeding mechanism, a station rotary mechanism, a conveying mechanism and a heat sealing mechanism, wherein the feeding mechanism is used for feeding materials in a first direction, the station rotary mechanism comprises a rotary base and a station assembly arranged on the rotary base, the rotary base is driven by a rotary drive mechanism to rotate intermittently, the station assembly is used for placing packaging bags, the bag loading mechanism and the feeding mechanism are respectively arranged at different stations of a conveying path of the station rotary mechanism, the feeding mechanism feeds materials into a packaging bag with an upper bag opening of the station assembly facing the horizontal direction in a transverse direction, and the conveying mechanism is connected between the station where the feeding mechanism is located and the heat sealing mechanism to convey the packaging bag of the loaded material to the heat sealing mechanism;

[0007] The conveying mechanism includes a frame, a clamp, an actuating member and a driving mechanism, the frame is provided with a clamp for clamping the packaging bag placed on the station assembly, a guide path 1 and a guide path 2 are provided between the station where the feeding mechanism is located and the heat sealing mechanism, the frame is rotatably connected to the actuating member through a connecting portion, the frame is provided with a guide portion 1 that moves along the guide path 1, the actuating member is provided with a guide portion 2 that moves along the guide path 2, and the actuating member is driven by the driving mechanism to move along the guide path 2 to drive the frame to move;

[0008] The movement process of the frame from the workstation of the feeding mechanism to the heat sealing mechanism includes a translation movement section and a flip movement section in sequence. In the translation movement section, the frame maintains a first posture and moves in a straight line. In the flip movement section, the frame flips to a second posture during the movement. When the frame is in the first posture, the packaging bag on the frame is in a state where the bag opening is facing horizontally. When the frame is in the second posture, the packaging bag on the frame is in a state where the bag opening is facing vertically upward.

[0009] In a possible implementation, the tail section of the flipping movable section is a lifting movable section, and the height of the frame is raised in the lifting movable section.

[0010] In a possible implementation, the path segment of the guide path 1 corresponding to the translational movable segment of the frame is the translational guide segment 1, and the translational guide segment 1 is parallel to the straight-line moving direction of the frame maintaining the first posture;

[0011] The path segment of the guide path one corresponding to the flipping movable segment of the frame is flipping guide segment one, and the path segment of the guide path two corresponding to the flipping movable segment of the frame is flipping guide segment two. The distance between flipping guide segment one and flipping guide segment two changes along the traveling direction so that the frame can be flipped during the traveling process.

[0012] In a possible implementation, the tail sections of the flip guide section 1 and the flip guide section 2 are respectively provided with rising sections to raise the height of the frame.

[0013] In a possible implementation, the flip guide segment 1 and / or the flip guide segment 2 presents a curved path.

[0014] In a possible implementation, the driving mechanism includes a driving member and a power mechanism, the actuating member is slidably connected to the driving member, and the driving member is driven by the power mechanism to perform linear movement or rotational movement.

[0015] In a possible implementation, the clamp includes two clamping members arranged in pairs, and the two clamping members are respectively used to clamp one side of the packaging bag;

[0016] The frame is also provided with a supporting part for lifting the packaging bag.

[0017] In a possible implementation, the clamping member is movably mounted on the frame, and the two clamping members are driven by a driving component to move relative to each other to adjust the distance between the two clamping members.

[0018] In a possible implementation, the clamps are arranged in multiple groups on the frame in a parallel direction perpendicular to the moving path of the frame.

[0019] In a possible implementation, the station components are provided with at least two groups, the rotary base rotates around a rotation axis, each station component is arranged on the rotary base in a rotation circumferential direction around the rotation axis, and the packaging bags of each two groups of station components on the same radial direction are placed in opposite and parallel directions;

[0020] Alternatively, the station components are provided with at least two groups, the rotating base is arranged obliquely and rotates around an oblique rotation axis, each group of station components is arranged on the rotating base in a mirror-image manner on the plane where the rotation axis is located, and the packaging bags of each two groups of station components arranged in a mirror-image manner are placed in a perpendicular direction;

[0021] Alternatively, the workstation components are provided with at least two groups, the rotating base rotates around a rotation axis, each group of workstation components is arranged on the rotating base in a centrally symmetrical manner with the rotation center, and the packaging bags of the two centrally symmetrical groups of workstation components are placed in the same and parallel directions.

[0022] In a possible implementation, the workstation rotation mechanism also includes an expansion and retraction driving mechanism, and the workstation assembly includes at least two workstation units for placing packaging bags. The workstation units are driven by the expansion and retraction driving mechanism to move the workstation assembly between an expanded posture and a folded posture, and the rotation radius of the workstation assembly when in the folded posture is smaller than the rotation radius of the workstation assembly when in the expanded posture.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The packaging machine of the present invention has a rotating base body of the station rotation mechanism that can rotate, and the station assembly for placing the packaging bags thereon can be switched to the corresponding station through the rotation, so as to be connected with the bag loading mechanism and the feeding mechanism in turn to carry out bag loading and feeding, thereby achieving faster movements, improving work efficiency, and reducing the overall complexity and occupied space, and through the conveying mechanism, the packaging bags after horizontal loading can be first translated and separated from the bagging clamp, and then turned over during the movement, so that the loaded packaging bags can be turned over from a horizontal state to a vertical state, so that the bag openings on both sides of the packaging bags can be kept in a flush state, thereby avoiding the problem of poor heat sealing quality and sealing effect due to misalignment of the bag openings during the heat sealing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional view of a packaging machine at a first viewing angle;

[0026] Figure 2 A stereoscopic view of a packaging machine from a second perspective

[0027] Figure 3 A three-dimensional view of a packaging machine from a third perspective;

[0028] Figure 4 A stereoscopic view of a conveying mechanism of a packaging machine at a first viewing angle;

[0029] Figure 5 is a stereoscopic view of a conveying mechanism of a packaging machine at a second viewing angle;

[0030] Figure 6 is a side view of a conveying mechanism of a packaging machine, which also shows a first structure of a guide path 1 and a guide path 2;

[0031] Figure 7 It is a schematic diagram of a section of a guide path 1 and a guide path 2 of a conveying mechanism of a packaging machine;

[0032] Figure 8 It is a schematic diagram of the conveying principle of a conveying mechanism of a packaging machine;

[0033] Fig. 9 for Figure 4 A partial enlarged schematic diagram of part A;

[0034] Fig.10 It is a schematic diagram of a second implementation structure of a guide path 1 and a guide path 2 of a conveying mechanism of a packaging machine;

[0035] Fig.11 It is a schematic diagram of a third implementation structure of a guide path 1 and a guide path 2 of a conveying mechanism of a packaging machine;

[0036] Fig.12 is a schematic diagram of a fourth implementation structure of a guide path 1 and a guide path 2 of a conveying mechanism of a packaging machine;

[0037] Fig.13 The present invention is a schematic diagram of another structural implementation of a driving mechanism of a conveying mechanism of a packaging machine.

[0038] Fig.14 It is a structural schematic diagram of a first implementation structure of a station rotation mechanism of a packaging machine;

[0039] Fig.15 It is a schematic diagram of a second implementation structure of a station rotation mechanism of a packaging machine;

[0040] Fig.16 It is a schematic diagram of a third implementation structure of a station rotation mechanism of a packaging machine;

[0041] Fig.17 The schematic diagram is a structural diagram of an expansion and contraction drive mechanism of a station rotary mechanism of a packaging machine, in which the station components are in an expanded posture;

[0042] Fig.18 It is a schematic diagram of a station component of a station rotating mechanism of a packaging machine in a retracted posture;

[0043] Fig.19 A three-dimensional view of a bag loading mechanism of a packaging machine;

[0044] Fig. 20 It is a three-dimensional view of a feeding mechanism of a packaging machine;

[0045] Fig.21 The figure is a three-dimensional view of a heat sealing mechanism of a packaging machine.

[0046] In the figure: 01-frame; 02-transmission mechanism; 1-driving mechanism; 11-driving member; 12-rotating shaft 1; 13-pull rod; 14-swing arm; 15-rotating shaft 2; 16-reducer; 17-motor; 2-actuating member; 3-frame; 4-clamping member; 5-guide plate; 6-guide path 1; 61-translation guide section 1; 62-turning guide section 1; 63-rising section 1; 7-guide path 2; 71-translation guide section 2; 72-turning guide section 2; 73-rising section 2; 8-guide part 1; 81-bearing part 1; 82-eccentric connecting member; 9-guide part 2; 91-bearing part 2; 10-packaging bag; 100-electric guide rail 2; 200-electric guide rail 1; 300-supporting part; 400-station rotation mechanism; 401-rotating base; 40 2-station unit; 403-bag supporter; 404-connecting rod assembly; 405-slide; 406-cam guide member; 500-bag loading mechanism; 510-bag placement bin; 520-bag taking mechanism; 521-first cylinder; 522-first mounting frame; 523-first suction cup; 530-bag transfer and support mechanism; 531-electric guide rail; 532-moving frame; 533-screw nut mechanism; 534-upper bag suction assembly; 535-lower bag suction assembly; 536-mounting cross bar; 600-feeding mechanism; 610-material conveying device; 611-material; 612-conveying chain; 620-pushing rod; 700-heat sealing mechanism; 701-rotating shaft three; 702-clamping arm; 703-heat sealing plate; 704-connecting rod; 705-linear drive component one. DETAILED DESCRIPTION

[0047] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.

[0048] Please refer to Figure 1-3 As shown, a packaging machine according to an embodiment of the present application includes a bag loading mechanism 500, a feeding mechanism 600, a station rotation mechanism 400, a conveying mechanism 02 and a heat sealing mechanism 700, wherein the feeding mechanism 600 is used for feeding along a first direction, the station rotation mechanism 400 includes a rotating base 401 and a station assembly arranged on the rotating base 401, the rotating base 401 is driven to rotate intermittently by a rotating driving mechanism 1, the station assembly is used for placing packaging bags 10, the bag loading mechanism 500 and the feeding mechanism 600 are respectively arranged at different stations of the conveying path of the station rotation mechanism 400, the feeding mechanism 600 feeds the material 611 into the packaging bag 10 with the bag opening of the station assembly facing horizontally in the horizontal direction, and the conveying mechanism 02 is connected between the station where the feeding mechanism 600 is located and the heat sealing mechanism 700 to convey the packaging bag 10 loaded with the material 611 to the heat sealing mechanism 700.

[0049] The packaging machine is provided with each mechanism through the frame 01, so that each mechanism can be provided at a corresponding connection position. The bag loading mechanism 500 is used to place the packaging bag 10 on the station assembly of the station rotating mechanism 400, and the placing method can be bagging, that is, the packaging bag 10 is opened and then put on the station assembly, so that the material 611 can enter the open packaging bag 10 when receiving the material. The feeding mechanism 600 can feed in one direction, and the station rotating mechanism 400 is provided in the feeding direction, so as to feed the material 611 into the packaging bag 10 placed on the station assembly. The rotary body of the station rotary mechanism 400 can rotate intermittently under the drive of the rotary drive mechanism, so that the station components thereon can be switched from one station to another, and the bagging mechanism 500 and the feeding mechanism 600 are respectively arranged at different stations of the conveying path of the station rotary mechanism 400, so that the station components thereon can be rotated through the gap of the rotary body to successively rotate to the bagging mechanism 500 and the feeding mechanism 600 for bagging and feeding. The packaging bag 10 is in a horizontal posture when loading, and the flipping mechanism transports the loaded packaging bag 10 to the heat sealing mechanism 700 for longitudinal loading, which can solve the problem of uneven bag opening.

[0050] Please refer to Figure 4 and Figure 5 As shown, in an embodiment of the present application, the conveying mechanism 02 may include a frame 3, a clamp, an actuating member 2 and a driving mechanism 1, the frame 3 is provided with a clamp for clamping the packaging bag 10 placed on the workstation assembly, a guide path 1 6 and a guide path 2 7 are provided between the workstation where the feeding mechanism 600 is located and the heat sealing mechanism 700, the frame 3 is rotatably connected to the actuating member 2 through a connecting portion, the frame 3 is provided with a guide portion 1 8 that moves along the guide path 1 6, the actuating member 2 is provided with a guide portion 2 9 that moves along the guide path 2 7, and the actuating member 2 is driven by the driving mechanism 1 to move along the guide path 2 7 to drive the frame 3 to move.

[0051] The conveying mechanism 02 is mainly used for conveying between the workstation where the feeding mechanism 600 is located and the heat sealing mechanism 700. The packaging bag 10 can be clamped on the frame 3 by a clamp, and is moved and turned over by the frame 3. The guide path 1 6 and the guide path 2 7 cooperate with each other. The guide path 1 6 mainly guides the frame 3, specifically by cooperating with the guide part 1 8 on it and the guide path 1 6 to perform active positioning, while the guide path 2 7 mainly guides the actuator 2, which moves along the guide path 2 7 through the guide part 2 9. The actuator 2 is connected to the driving mechanism 1 so that it can move along the guide path 2 7 under the drive of external force, and also drives the frame 3 to move, and then under the guiding action of the guide path 1 6 and the guide path 2 7, it can be easily translated and turned over. The actuator 2 moves along the guide path 2 7, which is actually an irregular movement. The actuator 2 moves along the guide path 2 7 and drives the frame 3 to move.

[0052] Please refer to Figure 6 and Figure 7 As shown, since the actuator 2 is rotatably connected to the frame 3, the frame 3 can be turned over by rotation, and since a guide portion 1 8 is provided on the frame 3, the distance between the guide portion 1 8 and the guide portion 2 9 can be changed by gradually increasing or decreasing the distance between at least part of the two paths 1 and the guide path 2 7. Since the actuator 2 and the frame 3 are rotatably connected, the connection point of the actuator 2 and the frame 3 can be rotated around the guide portion 1 8 through the actuator 2 when the distance changes, and the actuator 2 can rotate relative to the frame 3 with the connection point as the rotation center, so that the packaging bag 10 on the frame 3 can be turned from one posture or orientation to another posture or orientation, such as from horizontal to vertical.

[0053] Based on this, in order to achieve the conveying method of first translation and then flipping, please continue to refer to Figure 6 and Figure 7 As shown, in the embodiment of the present application, the activity process of the frame from the station where the feeding mechanism is located to the heat sealing mechanism includes a translation activity section and a flip activity section in sequence. In the translation activity section, the frame maintains a first posture and moves in a straight line. In the flip activity section, the frame flips to a second posture during the movement. When the frame is in the first posture, the packaging bag on the frame is in a state where the bag opening faces horizontally. When the frame is in the second posture, the packaging bag on the frame is in a state where the bag opening faces vertically upward. By setting the shape path of the guide path 1 6 and the guide path 2 7, when the actuator 2 moves along the guide path 2 7 and drives the frame 3 to move along the guide path 1 6, the height of the connection point between the frame 3 and the actuator 2 relative to the guide part 1 8 can be adjusted and changed, thereby adjusting and changing the posture of the frame 3, so that the frame 3 performs a flipping activity, and then adjusting and changing the posture of the packaging bag clamped on the frame 3, so that the packaging bag originally with the bag opening facing horizontally can be flipped to the bag opening facing vertically.

[0054] The frame 3 with the packaging bag 10 clamped can first perform a translational movement. When the frame 3 is in the first posture, it corresponds to the packaging bag 10 on the frame 3 being in a state where the bag opening is facing horizontally. For the bagging packaging machine, the material is pushed into the packaging bag mounted on the bagging clamp along the horizontal direction. The packaging bag mounted on the bagging clamp is in a state where the bag opening is facing horizontally at this time. The frame 3 first maintains the first posture and moves in a straight line, which means that the packaging bag clamped by the clamping member 4 on the frame 3 is kept in a state where the bag opening is facing horizontally and withdraws from the bagging clamp along the horizontal straight line, thereby ensuring that the packaging bag can be smoothly separated from the bagging clamp, and the packaging bag can be avoided from being damaged due to interference or obstruction of the bagging clamp. Then the frame 3 is flipped to the second posture in the flipping activity section. When the frame 3 is in the second posture, it corresponds to the packaging bag 10 on the frame 3 being in a state where the bag opening is facing vertically. In this way, the flipping and transportation between the workstation where the feeding mechanism is located and the heat sealing mechanism can be realized, and the packaging bag 10 is flipped to a posture with the bag opening facing upward by flipping for the subsequent heat sealing process.

[0055] Please refer to Figure 6 and Figure 7 As shown, in one embodiment, the tail section of the flipping movable section is a lifting movable section, and the height of the frame 3 is raised in the lifting movable section.

[0056] In this way, the packaging bag 10 is initially turned over by the turning guide section and then lifted up to a certain height, which can also allow the frame 3 to have more rotation space and further rotate around the guide portion 8, so that the frame 3 can be turned over 90° and the packaging bag 10 is turned from a horizontal posture to a vertical posture, and the transportation accuracy is higher.

[0057] For example, at the heat sealing station, since heat sealing is performed in an upright position, the heat sealing mechanism is located at the top and the heat sealing port is a clampable structure that moves up and down by a cylinder. After the packaging bag 10 is flipped to an upright position, its bag opening faces the heat sealing port at the top, and the heat sealing mechanism moves downward so that the bag opening enters the heat sealing port, and then heat sealing can be performed by clamping.

[0058] In order to make the guide path 1 6 and the guide path 2 7 match the activity process of the frame 3 from the position of the feeding mechanism to the heat sealing mechanism, please refer to Figure 6-8 As shown, in an embodiment of the present application, the path segment of the guide path 6 corresponding to the translational active segment of the frame 3 is a translational guide segment 61, and the translational guide segment 61 is parallel to the straight line moving direction of the frame 3 maintaining the first posture; the path segment of the guide path 6 corresponding to the flipping active segment of the frame 3 is a flipping guide segment 62, and the path segment of the guide path 2 7 corresponding to the flipping active segment of the frame 3 is a flipping guide segment 2 72, and the distance between the flipping guide segment 1 62 and the flipping guide segment 2 72 changes along the moving direction so that the frame 3 can be flipped during the moving process.

[0059] The guide path 16 mainly includes a translation guide segment 161 and a flip guide segment 162. The translation guide segment 161 and the flip guide segment 162 correspond to the path segments of the translational active segment of the frame 3, namely the translation guide segment 161 and the flip guide segment 162, respectively. Correspondingly, the guide path 27 also mainly includes a flip guide segment 272. The flip guide segment 272 corresponds to the path segment of the flip active segment of the frame 3. In this way, the translation guide segment 161 can provide guidance for the translation of the frame 3, so that the frame 3 can be translated to the flip guide segment 162. When entering the flip guide segment 162, since the distance between the flip guide segment 162 and the flip guide segment 272 changes along the travel direction, such as the distance gradually increases or decreases, the actuator 2 can drive the connection point where the actuator 2 is rotatably connected to the frame 3 to rotate around the guide portion 18, thereby enabling the frame 3 to flip during the travel.

[0060] Furthermore, the tail sections of the flip guide section 1 62 and the flip guide section 2 72 are respectively provided with rising sections to raise the height of the frame 3 .

[0061] In this way, the rising section of the guide path 1 6 is the rising section 1 63, and the rising section of the guide path 2 7 is the rising section 2 73. The rising section 1 63 and the rising section 2 73 can match the lifting movable section. After the initial flipping, the angle between the guide part 1 and the actuating member can be made larger through the further extended rising section, so that the frame can rotate around the guide part 1 at a larger angle. At the same time, the packaging bag can be further flipped to an upright state with further lifting, which is more conducive to heat sealing the two sides of the bag opening in a flush state. Specifically, the bending direction of the rising section 1 63 and the rising section 2 73 is the same and both are oriented, and the rising section 2 73 and the flip guide section 2 72 extend in the same direction.

[0062] Please refer to Figure 10-12 As shown, in a preferred embodiment of the guide path 1 6 and the guide path 2 7, the flipping guide segment 1 62 and / or the flipping guide segment 2 72 are curved paths. By having one or both of them be curved paths, a guide structure with a spacing that varies along the moving direction of the frame 3 can be constructed, thereby realizing the flipping of the frame 3.

[0063] For example, when the flip guide segment 1 62 is a curved path, the flip guide segment 2 72 can be a curved path or a straight path, and vice versa; when the flip guide segment 1 62 is a curved path and the flip guide segment 2 72 is a curved path, the flip guide segment 1 62 and the flip guide segment 2 72 gradually approach or move away from each other along the moving direction of the frame 3, wherein when they gradually approach, the actuator 2 is transmitted at the bottom, and when they gradually move away, the guide path 2 7 is located above the guide path 1 6 and the actuator 2 is transmitted at the top.

[0064] In the specific implementation process, the guide path 27 also includes a translation guide segment 271, which corresponds to the translation activity segment of the frame 3 during its movement. The translation guide segment 161 of the guide path 16 and the translation guide segment 271 of the guide path 27 are used for translation guidance of the frame 3. When the actuator 2 moves along the translation guide segment 271 of the guide path 27, the translation guide segment 161 is parallel to the translation direction of the frame 3, so that the frame 3 can maintain a translation movement with an unchanged posture to detach from the station assembly. The spacing between the flip guide segment 162 and the flip guide segment 272 varies, specifically, it gradually decreases or increases from one end close to the station where the feeding mechanism is located to the end close to the heat sealing mechanism. Through the progressive change of the spacing between the two, the actuator 2 can drive the connection point to rotate around the guide portion 18 to flip the flip frame. By first translating and then flipping the conveying method, the packaging bag 10 can effectively leave the station assembly, and then can be flipped by rotating during the movement, so that the packaging bag 10 can be initially flipped from a horizontal posture to a nearly vertical posture, so that the bag mouth of the packaging bag 10 can be flush and suitable for heat sealing operations. Of course, each guide path of the guide path 1 6 and the guide path 2 7 has a smooth transition between them.

[0065] The shape matching of the above-mentioned guide path 1 6 and guide path 2 7 can be combined into a variety of different structures. The arc size or curvature of the path segment and the change in the spacing between guide path 1 6 and guide path 2 7 can be adaptively configured according to the convenience of rotation to the upright state, without any restriction.

[0066] In the embodiment of the present application, the driving mechanism 1 includes a driving member 11 and a power mechanism, the actuating member 2 is slidably connected to the driving member 11, and the driving member 11 is driven by the power mechanism to perform linear movement or rotational movement.

[0067] The actuator 2 is slidably connected to the driving member 11 to form a retractable and movable member, so that the actuator 2 can be flexibly retracted when moving along the guide path 7, and overcome the problem of insufficient length when connected to the power mechanism during the spacing change process. The driving member 11 can be driven by the power mechanism to move linearly, combined with Fig.10As shown, for example, the driving member 11 is linearly driven to move by an electric guide rail 200 or a screw-nut sub-mechanism to make the actuator 2 move along the guide path 27. At this time, the translation guide segment 271 is a straight segment. In addition, the driving member 11 can also be rotated. For example, the actuator 2 rotates around a rotation axis, and the power mechanism drives it to rotate around the rotation axis. Through such a rotation method and the retractable structure, it can be translated and flipped along the guide path 27. At this time, the translation guide segment 271 is not parallel to the translation guide segment 161 and moves irregularly. Therefore, the translation guide segment 271 needs to be configured as a curved path that matches the motion trajectory of the guide portion 29.

[0068] Preferably, the driving member 11 is rotatably arranged, and the actuating member 2 is connected to the driving member 11 by sliding along the radial direction of the rotating circumference of the driving member 11. The driving member 11 can rotate about an axial direction, and the actuating member 2 can slide along the radial direction of the rotating circumference of the driving member 11, so that the frame 3 can be translated and flipped by sliding cooperation while rotating.

[0069] For details, please refer to Figure 4 As shown, the driving member 11 rotates and the connecting member is on the rotating shaft 12. The power mechanism drives the rotating shaft 12 to rotate, and the power mechanism may include a pull rod 13, a rotating shaft 15, a swing arm 14, a reducer 16 and a motor 17. The motor 17 is driven by the reducer 16. The reducer 16 is passed through the rotating shaft 15 and drives the rotating shaft 15. A swing arm 14 is provided on the rotating shaft 15. The swing arm 14 is hinged to the driving member 11 through the pull rod 13, so that the driving member 11 can be driven to rotate under the drive of the motor 17.

[0070] In addition, in order to make the frame 3 more convenient to rotate and flip along the path, the guide part 18 includes a movable part 1, and eccentric connecting parts 82 are fixed at both ends of the frame 3. The frame 3 is rotatably connected to the actuating member 2 through the eccentric connecting parts 82. The movable part 1 is set at the eccentric position of the eccentric connecting part 82, and the movable part 1 moves along the guide path 16. In this way, by changing the spacing between the flip guide section 162 and the flip guide 2, the frame 3 or the connection point between the frame 3 and the actuating member 2 can be rotated around the movable part 1 and flipped. The flip guide path 16 can also be more conducive to making the movable part 1 in a position conducive to eccentric transmission. Specifically, the movable part 1 is a bearing part 181, which is movably matched with the guide path 16 of the guide groove structure set on the guide plate 5. Correspondingly, the guide part 29 of the actuating member 2 is the movable part 2, and the movable part 2 is a bearing part 291, which is movably matched with the guide path 27.

[0071] In order to clamp both sides of the bag opening of the packaging bag 10 and close the bag opening before heat sealing, please combine Fig. 9As shown, the clamp includes two clamping members 4 arranged in pairs, and the two clamping members 4 are respectively used to clamp one side of the packaging bag 10; the clamping members 4 are movably mounted on the frame 3, and the two clamping members 4 are driven by a driving component to move relative to each other to adjust the distance between the two clamping members 4.

[0072] The clamping member 4 may be a pneumatic clamping member 4, and its clamping opening may allow both sides of the bag opening of the packaging bag 10 to pass through during the translation process of the packaging bag conveying mechanism being reset, so that both sides of the bag opening are respectively located in the clamping opening of a clamping member 4, thereby being able to clamp the packaging bag 10, and the clamping member 4 can move relatively under the drive of the driving component 1, so that before heat sealing, the bag opening can be flattened and straightened by adjusting the spacing between the clamping members 4, so that the bag opening can be closed and heat-sealed easily, avoiding the bag opening wrinkles affecting the sealing and aesthetics. Specifically, the driving component 1 may be the electric guide rail 2 100.

[0073] In order to realize multi-station transportation, further, the clamps are arranged in multiple groups side by side on the frame 3, and the side-by-side direction is perpendicular to the moving path of the frame 3.

[0074] Furthermore, the frame 3 is also provided with a support part 300 for lifting the packaging bag 10. The support part 300 includes a support member, which is fixed on the frame 3 and located between a group of clamping members 4, so that the loaded packaging bag 10 can be lifted so that the packaging bag 10 can be stably translated and turned over. When the frame 3 just receives the loaded packaging bag 10, it is in a first posture, at which time the bag opening of the packaging bag 10 faces horizontally. If there is no support part 300, the packaging bag 10 will sag due to the weight of the material, causing the entire packaging bag 10 to become a bent state, resulting in creases on the packaging bag and other undesirable conditions, which is not conducive to the stability of conveying the loaded packaging bag 10.

[0075] Some preferred implementation structures regarding the rotation mode of the rotating base 401 include but are not limited to the following structures:

[0076] In the first implementation structure, combined with Fig.14As shown, the station components are provided with at least two groups, the rotating base 401 rotates around a rotation axis, each station component is arranged circumferentially around the rotation axis on the rotating base 401, and the packaging bags 10 of each two groups of station components in the same radial direction are placed in opposite and parallel directions. The station components are provided with at least two groups on the rotating base 401 and are arranged circumferentially around the rotation axis, which can also be said to be in a circumferential array. For example, two groups of station components are provided on the rotating base 401, and the two groups of station components are located in the same radial direction, but the packaging bags 10 of the two groups are placed in opposite and parallel directions, so that when one group of station components is located at the station where the feeding mechanism 600 is located, the bag mouth can be loaded in the direction of the feeding mechanism 600, while the other station component is located at the station where the bag loading mechanism 500 is located. The packaging bag 10 is placed with the bag opening facing in the opposite direction (away from the bag loading mechanism 500), and then the rotating base 401 is turned over and rotated 180°, the positions of the two station components are exchanged and the bag opening direction is turned 180° to the opposite direction, so that after the packaging bag 10 is placed in the station component, it can be switched to the station where the feeding mechanism 600 is located for loading, and then turned over and transported to the heat sealing mechanism 700 for heat sealing after loading, so as to achieve more efficient station switching and occupy less space. Of course, the bag loading mechanism 500 and the feeding mechanism 600 are located on the same side of the rotating base 401 and are in an upper and lower position relationship.

[0077] In the second implementation structure, combined with Fig.15 As shown, the station components are provided with at least two groups, the rotating base 401 is tilted and rotates around an oblique rotation axis, each group of station components is arranged in a mirror image on the rotating base 401 at the same time in a plane where the rotation axis is located, and the packaging bags 10 of each two groups of station components arranged in a mirror image are placed vertically. The rotating base 401 is tilted and the rotation axis is also tilted. The multiple groups of station components arranged thereon are arranged in a mirror image in the plane where the rotation axis is located, and the packaging bags 10 of each two groups of station components arranged in a mirror image are placed vertically. In this way, the rotating base 401 can rotate 180° so that the horizontal station components rotate and switch to the vertical direction, and the station can be convenient for feeding when it is in a horizontal posture, and it can be convenient for bagging when it is in a vertical posture. The corresponding bagging mechanism 500 is arranged at the station where the station component in the vertical posture is located. In this way, after the packaging bag 10 is placed in the work station assembly, it can be switched to the work station where the feeding mechanism 600 is located for loading by rotation, and then turned over and transported to the heat sealing mechanism 700 for heat sealing after loading, thereby achieving more efficient work station switching and occupying less space.

[0078] In the third implementation structure, combined with Fig.16As shown, the station components are provided with at least two groups, the rotating base 401 rotates around a rotation axis, and each group of station components is arranged on the rotating base 401 in a centrally symmetrical manner with the rotation center, and the packaging bags 10 of the two centrally symmetrical groups of station components are placed in the same and parallel directions. The station components are arranged in multiple groups and are located in the same plane for rotation, and the packaging bags 10 are placed in the same and parallel directions, so that the up and down conversion of the station components can be realized, so that the station components located at the station where the bag loading mechanism 500 is located can be switched to the station where the feeding mechanism 600 is located after rotating 180° for loading, and after loading, they can be turned over and transported to the heat sealing mechanism 700 for heat sealing in a horizontal posture through the conveying mechanism 02. In this way, after the station components place the packaging bag 10, they can be switched to the station where the feeding mechanism 600 is located for loading, and after loading, they can be turned over and transported to the heat sealing mechanism 700 for heat sealing, so as to achieve more efficient station switching and occupy less space.

[0079] On the basis of the above-mentioned implementation structure, the workstation rotation mechanism 400 may also include an expansion and contraction driving mechanism 1, and the workstation assembly includes at least two workstation units 402 for placing packaging bags 10. The workstation units 402 are driven by the expansion and contraction driving mechanism 1 to move so that the workstation assembly can switch between an expanded posture and a folded posture. The rotation radius of the workstation assembly when in the folded posture is smaller than the rotation radius of the workstation assembly when in the expanded posture.

[0080] For example, the third embodiment is described in combination with the Fig.16As shown, the workstation assembly is connected to the rotating base 401 to rotate along with the rotating base 401 , and the workstation assembly and the rotating base 401 are combined to form an integral rotating body. When the workstation assembly is in the expanded posture, the workstation unit 402 in the workstation assembly is in a stretched state to facilitate the operating mechanism to perform various packaging processing procedures (such as loading the packaging bag 10 and filling the material 611, etc.). At this time, the rotating body has a larger turning radius and requires a larger space when rotating, resulting in the packaging machine conveying mechanism 02 requiring a larger activity space, which leads to a larger overall volume of the packaging machine. The large turning radius also leads to a large moment of inertia. The packaging machine conveying mechanism 02 is an intermittent motion mechanism. When the rotating base 401 rotates and transports the workstation assembly to different workstations, it needs to stop at the workstation to perform various packaging processing procedures. In other words, the rotating body is in a state of frequent switching between motion and stillness. The large moment of inertia makes the acceleration of the rotating body from stillness to motion slower and the deceleration from motion to stillness slower, thereby affecting the overall rotation rate of the rotating body, that is, affecting the efficiency of the workstation assembly circulating between the preset workstations, thereby affecting the processing efficiency of packaging production. After completing various packaging processing operations, the station assembly is driven by the expansion and retraction drive mechanism 1 to switch to the retracted posture. The station unit 402 in the station assembly moves radially inward of the rotating base 401 under the drive of the expansion and retraction drive mechanism 1 to achieve a relatively tight state, thereby effectively reducing the rotation radius of the rotating body, reducing the space required for rotation, thereby reducing the activity space required by the packaging machine conveying mechanism 02, and further reducing the overall volume of the packaging machine. Moreover, the reduction in the rotation radius also reduces the moment of inertia, so that the acceleration and deceleration of the rotating body can be faster, that is, it can increase the overall rotation rate of the rotating body, improve the efficiency of the station assembly circulating between the preset workstations, and better improve the processing efficiency of packaging production.

[0081] Specifically, the station units 402 in the station assembly are connected in sequence, and the adjacent station units 402 are hinged. The adjacent station units 402 are relatively deflected under the drive of the unfolding and retracting driving mechanism 1, so that the station assembly switches between the unfolded posture and the retracted posture. The station units 402 in the station assembly are connected to form a long string structure. Since the adjacent station units 402 are hinged, the overall posture of the station assembly can be changed when the adjacent station units 402 are relatively deflected. Specifically, the hinge axis between the adjacent station units 402 is perpendicular to the rotation plane of the rotating base 401, so that the plane where the station units 402 perform deflection activities is parallel to the rotation plane of the rotating base 401, that is, the station assembly is active in a plane parallel to the rotation plane of the rotating base 401 to achieve posture switching. The station units 402 in the station assembly can be arranged along a straight line, and the station units 402 in the station assembly can also be arranged in a curve. In order to facilitate the structural design of the operating mechanism and the parallel packaging processing of multiple stations, it is preferred that the station units 402 in the station assembly are in an unfolded posture when they are arranged in a straight line, so that each operating mechanism is convenient to set up parallel arranged mechanism units to perform packaging processing procedures on each station unit 402. Further, the station units 402 in the station assembly are arranged in a straight line along the tangent direction of the rotating base 401. This state is convenient for the structural design of the operating mechanism. The mechanism units in each operating mechanism are arranged in parallel along a straight line, which is easy to design and implement, compact in structure, and can better avoid interference. When the station assembly rotates to the target station and is in an unfolded posture with the station units 402 arranged in a straight line, each station unit 402 corresponds to each mechanism unit in the operating mechanism, such as corresponding to each push unit of the feeding mechanism 600, so that each mechanism unit performs packaging processing procedures on each station unit 402. When it is necessary to rotate the workstation assembly from one preset workstation to the next preset workstation, the workstation assembly is switched to a retracted posture to reduce the rotation radius. Specifically, the workstation unit 402 in the workstation assembly is in a retracted posture when arranged along the rotating circumference of the rotating base 401, that is, the workstation unit 402, which was originally arranged in a straight line tangentially along the rotating circumference of the rotating base 401, deflects toward the radial inner side of the rotating base 401, and finally reaches a posture in which the workstation unit 402 is arranged along the rotating circumference of the rotating base 401, which effectively reduces the rotation radius of the rotating body, reduces the space required for the rotation activity, reduces the volume of the packaging machine conveying mechanism 02, and reduces the moment of inertia to enable faster rotation switching, thereby improving the efficiency of the packaging process.

[0082] The station units 402 in the station assembly are in a relatively movable structural state, so that the relative position relationship between the station units 402 changes to achieve the change of the station assembly posture. In order to achieve automation, the station assembly is driven by the extension and retraction drive mechanism 1 to switch the posture. Figure 16-18 As shown, the unfolding and retracting driving mechanism 1 includes a driving member, a connecting rod assembly 404 and a slide 405. The slide 405 is slidably connected to the rotating base 401. The sliding direction of the slide 405 is along the radial direction of the rotating circumference of the rotating base 401. The slide 405 is connected to the station unit 402 in the station assembly through the connecting rod assembly 404. The driving member drives the slide 405 to move in the radial direction of the rotating circumference of the rotating base 401 so that the station assembly can be changed between the unfolding posture and the retracting posture. The driving member can be of various types, such as Fig.17 As shown, the driving member is a stationary cam guide member 406, which can be specifically a guide groove or a guide rail. The slide 405 is slidably connected to the cam guide member 406. The slide 405 rotates with the rotating base 401 and is driven by the cam guide member 406 to move. The structure is simple, easy to implement, and no additional power components are required. The cam guide member 406 can be specifically arranged on a stationary bracket plate, the path of the cam guide member 406 is annular around the rotation circumference of the rotating base 401, the distance from each point on the path of the cam guide member 406 to the rotation center of the rotating base 401 changes along the path of the cam guide member 406, the rotating base 401 rotates under the drive of the rotary drive mechanism 1, the slide 405 slides along the cam guide member 406, the cam guide member 406 drives the slide 405 to slide radially relative to the rotating base 401 along the rotating circumference of the rotating base 401, so that the slide 405 drives the workstation unit 402 to move through the connecting rod assembly 404, so that the workstation assembly rotates with the rotating base 401 The cam guide member 406 is a linkage structure, which has high reliability during operation and can effectively avoid interference caused by incoordination. In this embodiment, the cam guide member 406 is roughly elliptical. When the rotating base 401 drives the station assembly to rotate to the long diameter position of the ellipse, the station assembly reaches a fully extended extended posture, and when the rotating base 401 drives the station assembly to rotate to the short diameter position of the ellipse, the station assembly reaches a fully retracted retracted posture. During the rotation between the short diameter of the ellipse and the long diameter of the ellipse, the station assembly is in a gradual posture change process, that is, the station assembly gradually changes its posture during the rotation of the rotating base 401. More specifically, Fig.16For illustration, the station assembly includes three station units 402, the middle station unit 402 is fixedly arranged on the rotary base 401, and two sides of the middle station unit 402 are respectively hinged with a station unit 402, the slide 405 is slidably connected to the guide rail arranged on the rotary base 401, and the connecting rod assembly 404 is composed of a plurality of connecting rods 704, such as Figure 16-18As shown, a specific implementation of the connecting rod assembly 404 includes a first connecting rod 704, a second connecting rod 704 and a third connecting rod 704, one end of the first connecting rod 704 is hinged to the sliding member 405, the other end of the first connecting rod 704 is hinged to the middle of the second connecting rod 704, one end of the second connecting rod 704 is hinged to the rotating base 401, the other end of the second connecting rod 704 is hinged to one end of the third connecting rod 704, the other end of the third connecting rod 704 is hinged to the left end of the workstation unit 402, and similarly, the right end of the workstation unit 40 The slide 405 is connected to the slide 405 through another set of first to third links 704. When the slide 405 slides relative to the rotary base 401, the slide 405 drives the second link 704 to deflect relative to the rotary base 401 through the first link 704. Then, the second link 704 pulls the left-end workstation unit 402 to deflect relative to the middle workstation unit 402 through the third link 704. That is, the workstation unit 402 is driven by the extension and retraction drive mechanism 1 to move so that the workstation assembly can switch between the extended posture and the retracted posture. The connecting rod assembly 404 may also adopt other implementations. The connecting rod assembly 404 and the slide 405 are combined to form a crank-connecting rod 704 mechanism to realize the mutual conversion function between rotation and linear movement. Taking the workstation assembly including three workstation units 402 as an example, the middle workstation unit 402 is fixedly set on the rotating base 401, and a workstation unit 402 is hinged on both sides of the middle workstation unit 402. The connecting rod assembly 404 may be composed of only a single connecting rod 704, one end of which is hinged to the slide 405, and the other end of which is hinged to the workstation unit 402 on the middle end side of the workstation assembly. When the slide 405 slides relative to the rotating base 401, it can also drive the workstation unit 402 to deflect so as to realize the switching of the workstation assembly between the expanded posture and the folded posture. In addition, the cam guide member 406 can also be driven to rotate by an additionally arranged power mechanism, so as to realize a working mode in which the work station assembly first switches from an expanded posture to a folded posture and then the rotating base 401 rotates. Specifically, before the rotating base 401 rotates, the cam guide member 406 is driven by the power mechanism to rotate relative to the rotating base 401 first, so that the cam guide member 406 drives the slide 405 to slide relative to the rotating base 401 to switch the posture of the work station assembly. When the work station assembly switches to the folded posture, the rotating base 401 starts to rotate again, and at this time the cam guide member 406 rotates synchronously with the rotating base 401 to keep the work station assembly in the folded posture. When the work station assembly is rotated into place, the cam guide member 406 rotates relative to the rotating base 401 again to switch the work station assembly to the expanded posture for packaging processing.

[0083] Specifically, the station unit 402 is a bag opener 403 that penetrates from front to back, and the two side parts of the bag opener 403 are elastically movable so that the bag opener 403 has a tendency to open to both sides after the packaging bag 10 is completely covered thereon.

[0084] In the embodiments of this application, please combine Fig. 20 As shown, the bag loading mechanism 500 may include a packaging bag placement bin 510, a bag taking mechanism 520, and a bag transfer and support mechanism 530, wherein the packaging bag placement bin 510 may be used to place a stack of packaging bags 10 stacked one above the other, and the bottom of the packaging bag placement bin 510 is hollowed out to facilitate the bag taking assembly to take bags from below; the bag taking mechanism 520 mainly includes a first cylinder 521, a first mounting frame 522 connected to the action end of the first cylinder 521, and a plurality of first suction cups 523 mounted on the first mounting frame 522, and the packaging bags 10 can be sucked from the bottom of the packaging bag placement bin 510 under the suction action of the first suction cups 523 by the extension and contraction of the first cylinder 521; and the bag transfer and support mechanism 530 may be used to transfer the packaging bags 10 to the packaging bag placement bin 510. The bag mechanism 530 may include an upper bag suction assembly 534, a lower bag suction assembly 535, a mobile frame 532 and a screw nut mechanism 533. The two ends of the mobile frame 532 are slidably connected to the frame 01 of the packaging frame through an electric guide rail 531. The mobile frame 532 is connected to the upper bag suction assembly 534 and the lower bag suction assembly 535 respectively through a screw nut mechanism 533 having two opposite threaded segments of a screw. In this way, under the drive of the screw nut mechanism 533, the upper bag suction assembly 534 and the lower bag suction assembly 535 can be relatively moved up and down to absorb the upper bag surface and the lower bag surface of the packaging bag 10 respectively, so that the packaging bag 10 is stretched and placed on the station unit 402 of the station assembly. Specifically, the upper bag suction assembly 534 and the lower bag suction assembly 535 are symmetrical to each other, and mainly include a mounting cross bar 536, a connecting plate mounted on the mounting cross bar 536, and a plurality of second suction cups arranged on the connecting plate. After the bag taking mechanism 520 takes the bag, the bag transfer and stretching mechanism 530 moves to the packaging bag 10, and the upper bag suction assembly 534 and the lower bag suction assembly 535 are respectively located above and below the packaging bag 10, and then the screw nut mechanism 533 drives the upper bag suction assembly 534 and the lower bag suction assembly 535 to approach each other and suck the upper bag surface and the lower bag surface, and then drives them away from each other to stretch the packaging bag 10, and at the same time moves to the workstation rotation mechanism 400, so that the stretched packaging bag can be put on the workstation unit 402.

[0085] Further, in a preferred embodiment of the feeding mechanism 600, please combine Fig. 20As shown, the feeding mechanism 600 includes a plurality of pushing rods 620 arranged side by side along the second direction, and a material conveying device 610 conveyed along the second direction by a conveying chain 612 and having a plurality of grids for placing materials 611. The material conveying device 610 passes through the front and rear sides of each grid, so that under the pushing action of the pushing rod 620 along the first direction, the material 611 can be extended into the material box and further pushed into the packaging bag 10 placed on the work station unit 402, thereby realizing loading.

[0086] Furthermore, in order to achieve heat sealing of the packaging bag 10 in an upright position, please combine Fig.21 As shown, the heat sealing mechanism 700 may include a rotating shaft 3 701, two clamping arms 702 arranged in pairs, and two heat sealing plates 703 respectively connected to one clamping arm 702, the two clamping arms 702 are simultaneously connected to the rotating shaft 3 701, the two clamping arms 702 are respectively connected to a connecting rod 704 and are simultaneously connected to a linear driving component 1 705 through the connecting rod 704, and a heat sealing opening is formed between the two heat sealing plates 703, and the heat sealing opening faces downward. In this way, under the drive of the linear driving component 1 705 such as a cylinder, the two connecting rods 704 can drive the two clamping arms 702 to perform a relative clamping action around the rotating shaft, so that the bag opening of the upright packaging bag 10 can be heat-sealed by clamping.

[0087] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention, and the protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A packaging machine, characterized in that: It includes a bag loading mechanism, a feeding mechanism, a station rotation mechanism, a conveying mechanism and a heat sealing mechanism, wherein the feeding mechanism is used for feeding along a first direction, the station rotation mechanism includes a rotary base and a station assembly arranged on the rotary base, the rotary base is driven by a rotary drive mechanism to rotate intermittently, the station assembly is used for placing packaging bags, the bag loading mechanism and the feeding mechanism are respectively arranged at different stations of the conveying path of the station rotation mechanism, the feeding mechanism feeds the material into the packaging bag with the bag opening of the station assembly facing the horizontal direction in the horizontal direction, and the conveying mechanism is connected between the station where the feeding mechanism is located and the heat sealing mechanism to convey the packaging bag of the loaded material to the heat sealing mechanism; The conveying mechanism includes a frame, a clamp, an actuating member and a driving mechanism, the frame is provided with a clamp for clamping the packaging bag placed on the station assembly, a guide path 1 and a guide path 2 are provided between the station where the feeding mechanism is located and the heat sealing mechanism, the frame is rotatably connected to the actuating member through a connecting portion, the frame is provided with a guide portion 1 that moves along the guide path 1, the actuating member is provided with a guide portion 2 that moves along the guide path 2, and the actuating member is driven by the driving mechanism to move along the guide path 2 to drive the frame to move; The movement process of the frame from the workstation of the feeding mechanism to the heat sealing mechanism includes a translation movement section and a flip movement section in sequence. In the translation movement section, the frame maintains a first posture and moves in a straight line. In the flip movement section, the frame flips to a second posture during the movement. When the frame is in the first posture, the packaging bag on the frame is in a state where the bag opening is facing horizontally. When the frame is in the second posture, the packaging bag on the frame is in a state where the bag opening is facing vertically upward.

2. A packaging machine as claimed in claim 1, characterized in that: The tail section of the flipping movable section is a lifting movable section, and the height of the frame is raised in the lifting movable section.

3. A packaging machine as claimed in claim 1, characterized in that: The path segment of the guide path 1 corresponding to the translational movable segment of the frame is the translational guide segment 1, and the translational guide segment 1 is parallel to the straight-line moving direction of the frame maintaining the first posture; The path segment of the guide path one corresponding to the flipping movable segment of the frame is flipping guide segment one, and the path segment of the guide path two corresponding to the flipping movable segment of the frame is flipping guide segment two. The distance between flipping guide segment one and flipping guide segment two changes along the traveling direction so that the frame can be flipped during the traveling process.

4. A packaging machine as claimed in claim 3, characterized in that: The tail sections of the flip guide section 1 and the flip guide section 2 are respectively provided with rising sections to raise the height of the frame.

5. A packaging machine as claimed in claim 3, characterized in that: The flip guide section 1 and / or the flip guide section 2 presents a curved path.

6. A packaging machine as claimed in claim 1, characterized in that: The driving mechanism comprises a driving member and a power mechanism. The actuating member is slidably connected to the driving member. The driving member is driven by the power mechanism to perform linear movement or rotational movement.

7. A packaging machine as claimed in claim 1, characterized in that: The clamp comprises two clamping members arranged in pairs, and the two clamping members are respectively used to clamp one side of the packaging bag; The frame is also provided with a supporting part for lifting the packaging bag.

8. A packaging machine as claimed in claim 7, characterized in that: The clamps are arranged in multiple groups on the frame in a parallel direction perpendicular to the moving path of the frame; The clamping member is movably mounted on the frame, and the two clamping members are driven by a driving component to move relative to each other so as to adjust the distance between the two clamping members.

9. A packaging machine as claimed in claim 1, characterized in that: The station components are provided with at least two groups, the rotary base rotates around a rotation axis, each station component is arranged on the rotary base in a rotation circumferential direction around the rotation axis, and the packaging bags of each two groups of station components on the same radial direction are placed in opposite and parallel directions; Alternatively, the station components are provided with at least two groups, the rotating base is arranged obliquely and rotates around an oblique rotation axis, each group of station components is arranged on the rotating base in a mirror-image manner on the plane where the rotation axis is located, and the packaging bags of each two groups of station components arranged in a mirror-image manner are placed in a perpendicular direction; Alternatively, the workstation components are provided with at least two groups, the rotating base rotates around a rotation axis, each group of workstation components is arranged on the rotating base in a centrally symmetrical manner with the rotation center, and the packaging bags of the two centrally symmetrical groups of workstation components are placed in the same and parallel directions.

10. A packaging machine as claimed in claim 9, characterized in that: The workstation rotation mechanism also includes an expansion and retraction driving mechanism, and the workstation assembly includes at least two workstation units for placing packaging bags. The workstation units move under the drive of the expansion and retraction driving mechanism to enable the workstation assembly to switch between an expanded posture and a folded posture. The rotation radius of the workstation assembly when in the folded posture is smaller than the rotation radius of the workstation assembly when in the expanded posture.

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