Feeding mechanism

Abstract

The utility model belongs to the field of food packaging equipment, and discloses a feeding mechanism which comprises a feeding assembly and a first driving mechanism, and the feeding assembly is driven by the first driving mechanism to do linear reciprocating motion in the first direction; the feeding assembly comprises a bearing part, a blocking and pushing part and a second driving mechanism, the bearing part is used for bearing materials, and the blocking and pushing part is driven by the second driving mechanism to reciprocate between the tail end and the front end of the bearing part in the first direction so as to push the materials away from the bearing part. Through the feeding assembly with the bearing part, under the driving of the first driving mechanism, the feeding assembly can carry materials and can also be supported through the bearing part after the materials are fed into packaging bags, so that additional arrangement of a complex and redundant bearing mechanism can be avoided, the structure is simpler, the feeding assembly further has a bag opening function, and the packaging efficiency is improved. And meanwhile, the multiple sets of feeding assemblies are arranged, simultaneous feeding of multiple stations is achieved under driving of the same driving mechanism, batch bagging and feeding are achieved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of food packaging equipment, in particular to a feeding mechanism. Background Art

[0002] The bagging packaging machine mainly includes a bag-supporting assembly that holds the packaging bag in an open state. For block-shaped materials, a pushing mechanism is usually used to push the material into the open packaging bag that is sleeved on the bag-supporting assembly. The pushing mechanism has a long active stroke, and the packaging bag is separated from the bag-supporting assembly by pushing the material to continue moving forward, so that the packaging bag containing the material can move directly to the next processing station (such as a sealing station).

[0003] The traditional bag support assembly usually includes two bag support plates that open and close in the width direction of the packaging bag. There is no bearing part for supporting the material between the two bag support plates. Therefore, a bearing plate is usually set below the bag support assembly. When the material is pushed into the packaging bag by the push rod, the material can be supported by the provided bearing plate to prevent the material from causing the packaging bag to fall and fall off. The bearing plate is used to connect to the next processing station so that the packaging bag containing the material can smoothly enter the next processing station. At the same time, the bag support assembly needs to be cyclically converted at multiple stations, such as between the bag loading station and the loading station. In order to avoid interference between the bag support assembly and the bearing plate during the conversion process, the bearing plate usually adopts a lifting structure for movement avoidance, resulting in a complex and redundant structure. In addition, the bearing plate needs to move with high precision. Once the height deviates, it will make it difficult for the packaging bag containing the material to smoothly enter the next processing station, affecting the overall production efficiency. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a feeding mechanism, which can solve the problem that the existing bag-supporting assembly needs to use a complex and redundant bearing mechanism to support the packaging bag during the feeding process by arranging a bearing part on the feeding assembly.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A feeding mechanism comprises a feeding assembly and a first driving mechanism, wherein the feeding assembly is driven by the first driving mechanism to perform linear reciprocating motion along a first direction;

[0007] The feeding assembly includes a bearing part, a blocking and pushing part and a second driving mechanism. The bearing part is used to hold materials, and the blocking and pushing part is driven by the second driving mechanism to reciprocate between the tail end and the front end of the bearing part along the first direction to push the material away from the bearing part.

[0008] Through the above technical solution, the feeding component can feed the material into the packaging bag under the drive of the first driving mechanism, and the bearing part of the feeding component can not only realize the loading of the material, but also realize that the gravity of the material will not directly act on the packaging bag after being loaded into the packaging bag, so that the packaging bag will not fall or fall off, thereby avoiding the need to set up a complex and redundant bearing mechanism. Such a structure will not interfere with other mechanisms, and the design is more reasonable and practical.

[0009] In a possible implementation, the feeding assembly also includes a cantilever extending along the first direction, the bearing portion is disposed at the distal end of the cantilever, the second driving mechanism is disposed on the cantilever, and the driving end of the second driving mechanism is connected to the blocking portion.

[0010] Through the above-mentioned technical solution, the cantilever is arranged so that the feeding assembly can be connected with other mechanisms including the existing bag-holding assembly under the drive of the first driving mechanism, and the feeding assembly can be kept in a cantilevered state more stably and firmly, and the push-blocking part can be driven to move by the second driving mechanism arranged on the cantilever, which is more convenient.

[0011] In a possible implementation, the second driving mechanism is disposed at the proximal end of the cantilever, and the driving end of the second driving mechanism is connected to the blocking and pushing portion via a first push rod extending along the cantilever.

[0012] Through the above-mentioned technical scheme, the second driving mechanism is arranged at the proximal end of the cantilever, so that the load arrangement of the cantilever can be more reasonable and the force on the cantilever can be reduced, and the second driving mechanism can be connected with the push-blocking part through the first push rod to realize long-distance driving, and it is beneficial to reduce the volume size of the feeding assembly at the load-bearing part. When the feeding mechanism of the present application is used in conjunction with the existing bagging packaging machine, the load-bearing part carrying the material needs to pass through the bag-supporting assembly of the existing bagging packaging machine, so that the volume size at the load-bearing part is not easy to be too large, otherwise interference is likely to occur and affect normal passability.

[0013] In a possible implementation, the cantilever is a channel-shaped member.

[0014] Through the above technical solution, the cantilever adopts a groove-shaped component with a light structure and high strength. The groove-shaped component has a good ability to resist bending moments, which enables the cantilever to better maintain the stability and support of the feeding assembly at a longer length.

[0015] In a possible implementation, the feeding assembly also includes a bag-holding mechanism, which includes a bag-holding part and a third driving mechanism. A bag-holding part is respectively provided on both sides of the bearing part parallel to the first direction, and the bag-holding parts on both sides are driven by the third driving mechanism to move relative to each other to hold the bag.

[0016] Through the above-mentioned technical scheme, the bag-stretching parts on both sides of the load-bearing part can make relative movement under the drive of the third driving mechanism, so as to change the distance between the bag-stretching parts, and then can have a contracted state and a bag-stretching state. In the contracted state, it is convenient to enter the packaging bag with the load-bearing part, and in the bag-stretching state, the packaging bag can be stretched, so that the shape of the packaging bag is maintained during the pushing process, which is beneficial to the operation at the next processing station.

[0017] In a possible implementation, the feeding assembly also includes a cantilever extending along the first direction, the bearing portion is arranged at the distal end of the cantilever, the second driving mechanism and the third driving mechanism are arranged at the proximal end of the cantilever, the driving end of the second driving mechanism is connected to the blocking and pushing portion through a first push rod extending along the cantilever, the driving end of the third driving mechanism is connected to the second push rod extending along the cantilever, and the second push rod is connected to the bag-supporting portions on both sides through transmission components.

[0018] Through the above technical solution, the third driving mechanism is movably connected to the two bag-supporting parts through a transmission structure including a second push rod and a transmission member. In this way, under the drive of the third driving mechanism, the reciprocating movement of the second push rod can drive the two connecting rods to make the bag-supporting parts on both sides approach or move away from each other, so that they can make relative movement. The structure is simple and the design is reasonable.

[0019] In a possible implementation, the feeding mechanism also includes a guiding mechanism, which is arranged on the movement path of the feeding component. The guiding mechanism includes guiding components symmetrically arranged on both sides of the movement path of the feeding component for guiding the sides of the packaging bag, and the guiding components are guide grooves with gradually decreasing entrance width.

[0020] Through the above technical solution, the guiding mechanism can provide guidance through two guiding components corresponding to each group of feeding components respectively. The two guide grooves of the guiding components can facilitate the passage of both sides of the packaging bag. When passing through, the posture of the packaging bag can be corrected under the guidance of the tapered structure of the guide port, making the packaging bag more conducive to the next processing step.

[0021] In a possible implementation, the first driving mechanism is connected to a plurality of feeding assemblies via a movable frame, and the plurality of feeding assemblies are spaced apart and distributed on the movable frame along a second direction, and the second direction is perpendicular to the first direction.

[0022] Through the above-mentioned technical scheme, multiple groups of feeding components are installed on the mobile frame, and then connected to the first driving mechanism through the mobile frame. In this way, under the drive of the first driving mechanism, each group of feeding components can make synchronous reciprocating movements along the first direction, thereby realizing synchronous feeding of multiple groups of feeding components, and multiple feeding stations can be formed by multiple groups of feeding components, which is conducive to batch processing operations.

[0023] In a possible implementation, the first driving mechanism includes two groups of linear reciprocating driving components, and two ends of the moving frame are respectively connected to a group of linear reciprocating driving components to synchronously drive the moving frame to move along the first direction.

[0024] Through the above technical solution, the two sets of linear reciprocating drive components can synchronously drive the moving frame to move, so that the moving frame with a larger width can be effectively driven to move synchronously, thereby improving the stability and accuracy of the delivery.

[0025] In a possible implementation, the linear reciprocating drive assembly includes a conveyor belt, a transmission wheel and a driving wheel; the conveyor belt is simultaneously wound around the two transmission wheels and the driving wheel, and the transmission direction of the transmission belt is parallel to the first direction, and the transmission belt is fixedly connected to the movable frame; the driving wheels of the two groups of linear reciprocating drive assemblies are simultaneously or separately connected to a driving source.

[0026] Through the above-mentioned technical solution, the conveyor belt, the transmission wheel and the driving wheel can form a conveyor belt mechanism. When the driving source drives the driving wheel, the two driven wheels can be driven to rotate through the conveyor belt, and the transmission structure thus formed can enable the conveyor belt to drive the mobile frame equipped with multiple groups of feeding components to move back and forth along the first direction, thereby realizing multi-station feeding and repeatable feeding process, thereby improving loading efficiency.

[0027] Compared with the prior art, the utility model has the following beneficial effects:

[0028] The feeding mechanism of the utility model, through a feeding assembly with a bearing part, under the drive of a first driving mechanism, the feeding assembly can not only load materials, but also support the materials through the bearing part after the materials are fed into the packaging bag, thereby avoiding the need to set up a complex and redundant bearing mechanism, making the structure more streamlined, and the feeding assembly also has a bag-supporting function, and the bag-supporting parts on both sides of the bearing part can be used to support the packaging bag, so that the packaging bag can be kept in a controlled state of being stretched open during the pushing process, so that the packaging bag containing the material can be transported to the next process in a more orderly and accurate manner, which is more convenient for the next process, and at the same time, by setting up multiple groups of feeding assemblies, simultaneous feeding of multiple stations can be realized under the drive of the same driving mechanism, thereby realizing batch bagging and feeding, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A stereoscopic view of a feeding mechanism at a first viewing angle;

[0030] Figure 2 is a stereoscopic view of a feeding mechanism at a second viewing angle;

[0031] Figure 3A stereoscopic view of a feeding component of a feeding mechanism at a first viewing angle;

[0032] Figure 4 A stereoscopic view of a feeding component of a feeding mechanism at a second viewing angle;

[0033] Figure 5 It is a schematic diagram of the structure of a feeding assembly of a feeding mechanism after the cantilever is hidden;

[0034] Figure 6 for Figure 5 A partial enlarged schematic diagram of part A;

[0035] Figure 7 It is a structural schematic diagram of a cantilever of a feeding assembly of a feeding mechanism;

[0036] Figure 8 The present invention is a three-dimensional view of a guide mechanism of a feeding mechanism.

[0037] In the figure: 1-feeding assembly; 11-bearing part; 12-blocking and pushing part; 13-cantilever; 14-bag supporting part; 15-connecting rod; 16-second push rod; 17-first push rod; 18-second driving mechanism; 19-third driving mechanism; 2-first driving mechanism; 21-linear reciprocating driving assembly; 211-driving wheel; 212-transmission wheel; 213-conveyor belt; 22-driving motor; 23-worm reducer; 24-worm transmission shaft; 3-guide mechanism; 31-mounting seat; 32-guide component; 321-mounting vertical plate; 322-metal sheet; 4-movable frame. DETAILED DESCRIPTION

[0038] 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.

[0039] Figure 1 A stereoscopic view of a feeding mechanism at a first viewing angle; Figure 2 It is a stereoscopic view of a feeding mechanism at a second viewing angle.

[0040] Please refer to Figure 1 and Figure 2 As shown, an embodiment of the present application provides a feeding mechanism, including a feeding assembly 1 and a first driving mechanism 2, wherein the feeding assembly 1 is driven by the first driving mechanism 2 to perform linear reciprocating motion along a first direction.

[0041] The feeding mechanism is mainly used to push the material and push the material into the packaging bag. It can be used for existing bagging packaging machines or feeding with the same feeding requirements, and specifically cooperates with the bag support component of the packaging machine to feed the material. The feeding component 1 can perform a linear reciprocating motion along the first direction in the first driving mechanism 2, so as to perform a feeding action in a process.

[0042] Figure 3 It is a stereoscopic view of a feeding component 1 of a feeding mechanism at a first viewing angle; Figure 4 It is a stereoscopic view of a feeding component 1 of a feeding mechanism at a second viewing angle; Figure 5 It is a structural schematic diagram of a feeding assembly 1 of a feeding mechanism after the cantilever 13 is hidden; Figure 6 for Figure 5 A partial enlarged schematic diagram of part A; Figure 7 It is a schematic structural diagram of a cantilever 13 of a feeding assembly 1 of a feeding mechanism.

[0043] Please refer to Figure 3-6 As shown, the feeding assembly 1 in the embodiment of the present application may include a bearing portion 11, a blocking and pushing portion 12 and a second driving mechanism 18. The bearing portion 11 is used to hold materials, and the blocking and pushing portion 12 is driven by the second driving mechanism 18 to reciprocate between the tail end and the front end of the bearing portion 11 along the first direction to push the material away from the bearing portion 11.

[0044] Among them, the bearing part 11 is used to support the material, or to carry the material, that is, to carry the material, and the pushing and blocking part is used to push the material on the bearing part 11 away from the bearing part 11, that is, through the pushing or blocking action of the pushing and blocking part, the material on the bearing part 11 entering the packaging bag is retained in the packaging bag, thereby completing the loading action in the feeding process, and the pushing and blocking part is driven by the second driving mechanism 18 to perform the corresponding action.

[0045] In some embodiments, the carrying portion 11 may be a material carrying plate or a groove-shaped component, without limitation.

[0046] In the actual feeding process, the feeding distance is usually long and needs to be coordinated through other mechanisms. Other mechanisms, such as the traditional bag-supporting assembly, need to pass through the channel of the bag-supporting assembly to feed the material into the packaging bag after the bag-supporting assembly is bagged. Therefore, it needs to have a longer length. Therefore, the feeding assembly 1 may also include a cantilever 13 extending along the first direction, the bearing portion is arranged at the far end of the cantilever 13, the second driving mechanism 18 is arranged on the cantilever 13, and the driving end of the second driving mechanism 18 is connected to the blocking portion 12.

[0047] In this way, the cantilever 13 can not only enable the feeding component 1 to have the action connection with other mechanisms including the traditional bag-holding component under the drive of the first driving mechanism 2, but also enable the feeding component 1 to be kept in a cantilevered state more stably and firmly, and the second driving mechanism 18 arranged on the cantilever 13 can drive the pushing and blocking part to move, which is more convenient.

[0048] Furthermore, in order to cooperate with the cantilever 13 and to make the force more reasonable, the second driving mechanism 18 is arranged at the proximal end of the cantilever 13, and the driving end of the second driving mechanism 18 is connected to the blocking part 12 through a first push rod 17 extending along the cantilever 13.

[0049] In this way, the load arrangement on the cantilever 13 can be made more reasonable, the force on the cantilever 13 can be reduced, and the second driving mechanism 18 can be connected to the push-blocking part through the first push rod 17 to achieve long-distance driving.

[0050] Preferably, combined Figure 7 As shown, the cantilever 13 is a channel-shaped member.

[0051] The cantilever 13 is a groove-shaped member, which has good ability to resist bending moments, so that the cantilever 13 can better maintain the stability and support of the feeding assembly 1 at a longer length, and its groove faces downward, which can better exert its ability to resist bending moments.

[0052] In order to keep the packaging bags in a controlled state during the feeding process, so that the packaging bags filled with materials can be transported to the next process more orderly and accurately, so as to facilitate the sealing of the bags in the next process, please combine Figure 5 and Figure 6 As shown, the feeding assembly 1 also includes a bag holding mechanism, which includes a bag holding portion 14 and a third driving mechanism 19. A bag holding portion 14 is provided on both sides of the bearing portion 11 parallel to the first direction, and the bag holding portions 14 on both sides are driven by the third driving mechanism 19 to move relative to each other to hold the bag.

[0053] In this way, the bag-stretching parts 14 on both sides of the carrying part 11 can make relative movements under the drive of the third driving mechanism 19, so as to change the distance between the bag-stretching parts 14, and then can have a contracted state and a bag-stretching state. In the contracted state, it is convenient to enter the packaging bag with the carrying part 11, and in the bag-stretching state, the packaging bag can be stretched, so that the shape of the packaging bag is maintained during the pushing process, which is beneficial to the operation at the next processing station.

[0054] On this basis, the feeding assembly 1 further comprises a cantilever 13 extending along the first direction, the bearing part 11 is arranged at the distal end of the cantilever 13, the second driving mechanism 18 and the third driving mechanism 19 are arranged at the proximal end of the cantilever 13, the driving end of the second driving mechanism 18 is connected to the blocking and pushing part 12 through the first push rod 17 extending along the cantilever 13, the driving end of the third driving mechanism 19 is connected to the second push rod 16 extending along the cantilever 13, and the second push rod 16 is connected to the bag-supporting parts 14 on both sides through transmission components. The third driving mechanism 19 is movably connected to the two bag-supporting parts 14 through a transmission structure including the second push rod 16 and the transmission component, so that under the drive of the third driving mechanism 19, the reciprocating movement of the second push rod 16 can drive the two connecting rods 15 to make the bag-supporting parts 14 on both sides approach or move away from each other, so that they can make relative movement, and the structure is simple and the design is reasonable. The transmission component can be a connecting rod 15 with two ends respectively hinged to the bag-supporting part and the second push rod, or a transmission component of other structures, such as an inclined slider.

[0055] Specifically, the bag-supporting portion 14 may be a side plate matched with the bearing portion 11 , and the height of the side plate is less than or equal to the height of the bag opening when the packaging bag is in the expanded state, so that it is easy to extend into the packaging bag.

[0056] Figure 8 It is a three-dimensional view of a guide mechanism 3 of a feeding mechanism.

[0057] Please combine Figure 8 As shown, in an embodiment of the present application, the feeding mechanism also includes a guiding mechanism 3, and the guiding mechanism 3 is arranged on the movement path of the feeding component 1. The guiding mechanism 3 includes guiding components 32 symmetrically arranged on both sides of the movement path of the feeding component 1 for guiding the sides of the packaging bag, and the guiding components 32 are guide grooves with gradually decreasing entrance width.

[0058] The guide mechanism 3 can guide through two guide components 32 corresponding to each feeding group. The two guide grooves of the guide component 32 can facilitate the passing of the two sides of the packaging bag. When passing through, the posture of the packaging bag can be corrected under the guidance of the tapered structure of the guide groove, so that the packaging bag can be more accurately transported to the next workstation, which is more conducive to the next processing step. Specifically, the guide component 32 includes a mounting plate 321 and two metal sheets 322 installed on the inner side of the top of the mounting bottom plate. The two metal sheets 322 are formed by bending and spaced from each other to form a through opening with one end larger and the other end smaller, which is the guide groove.

[0059] Please continue to refer to Figure 1 and Figure 2As shown, in an embodiment of the present application, the first driving mechanism 2 is connected to a plurality of feeding assemblies 1 via a movable frame 4, and the plurality of feeding assemblies 1 are spaced apart along a second direction on the movable frame 4, and the second direction is perpendicular to the first direction.

[0060] A plurality of feeding components 1 are installed on the mobile frame 4, and then connected to the first driving mechanism 2 through the mobile frame 4. In this way, each feeding component 1 can be driven by the first driving mechanism 2 to make synchronous reciprocating movement along the first direction, thereby realizing synchronous feeding of the plurality of feeding components 1, and a plurality of feeding stations can be formed through the plurality of feeding components 1, which is conducive to batch processing operations.

[0061] In order to make the moving frame 4 move more accurately and have a larger stroke, further, the first driving mechanism 2 may include two sets of linear reciprocating drive components 21, and the two ends of the moving frame 4 are respectively connected to a set of linear reciprocating drive components to synchronously drive the moving frame 4 to move along the first direction. The two sets of linear reciprocating drive components 21 can synchronously drive the moving frame 4 to move, so that the moving frame 4 with a larger width can be effectively driven and synchronously moved, thereby improving the stability and accuracy of the delivery.

[0062] In a preferred embodiment of the linear reciprocating drive assembly 21, the linear reciprocating drive assembly 21 includes a conveyor belt 213, a transmission wheel 212 and a driving wheel 211; the conveyor belt 213 is simultaneously wound around the two transmission wheels 212 and the driving wheel 211, and the transmission direction of the transmission belt is parallel to the first direction, and the transmission belt is fixedly connected to the movable frame 4; the driving wheels 211 of the two groups of the linear reciprocating drive assemblies 21 are simultaneously or separately connected to a driving source.

[0063] The conveyor belt 213, the transmission wheel 212 and the driving wheel 211 can constitute a conveyor belt 213 mechanism. When the driving source drives the driving wheel 211, the conveyor belt 213 can drive the two driven wheels to rotate, and the transmission structure thus formed can enable the conveyor belt 213 to drive the mobile frame 4 equipped with multiple groups of feeding components 1 to reciprocate along the first direction, thereby realizing multi-station feeding and repeatable feeding process, and improving the loading efficiency. The driving source can be composed of a driving motor 22 and a worm reducer 23. The worm reducer 23 has a transmission hole for the worm transmission shaft 24 to pass through. The worm transmission shaft 24 can be connected to the driving wheels 211 of the two linear reciprocating drive components 21 respectively to realize the synchronous transmission of the two components.

[0064] Specifically, the cantilever 13 is fixed on the mobile frame 4, and the mobile frame 4 is used as a fixed base. The main body of the second drive mechanism 18 and the third drive structure can be fixed on the mobile frame 4. Specifically, the main body of the third drive mechanism 19 can be fixed on a vertical mounting plate of the mobile frame 4. If cylinders are used as the second drive mechanism 18 and the third drive mechanism 19 respectively, the cylinder body of the second drive mechanism 18 can be fixed at the proximal end of the cantilever 13, and its drive shaft can be connected with the relevant parts of the feeding part through the second push rod 16, so as to realize the drive arrangement.

[0065] The working principle of a feeding mechanism in an embodiment of the present application is as follows:

[0066] First, after the packaging bag is put on the bag-stretching assembly, the bag-stretching assembly makes the bag-stretching assembly open, and the material is placed on the bearing part 11 of the feeding component by a discharging mechanism such as a robot, and then the first driving mechanism 2 drives the feeding component 1 to move toward the bag-stretching assembly, and makes the bearing part 11 of the feeding component 1 loaded with the material pass through the bag-stretching assembly and extend into the packaging bag. At this time, the first driving mechanism 2 drives the feeding component 1 to continue to move and the packaging bag is separated from the bag-stretching assembly through the bearing part 11. At the same time, the bag-stretching part 14 can be switched to the bag-stretching state by the third driving mechanism 19, so that the packaging bag can continue to be kept in a controlled state of being stretched tightly. The first driving mechanism 2 continues to drive the feeding component 1 to move until the packaging bag filled with the material is The bag moves to the position of the guide mechanism 3, and then the first drive mechanism 2 stops, and the second drive mechanism 18 starts to move to make the blocking and pushing part 12 move from the tail end of the load-bearing part 11 to the front end, so that the material and the packaging bag are pushed away from the load-bearing part 11. At the same time, the two sides of the packaging bag are guided by the two guide parts 32 of the guide mechanism 3 to enter the next workstation (such as a sealing mechanism, etc.). The feeding is completed, and then the first drive mechanism 2 drives the feeding assembly 1 to retreat and reset in the reverse direction, and the second drive mechanism 18 drives the blocking and pushing part 12 to reset to the tail end of the load-bearing part 11, and the third drive mechanism 19 also drives the bag-supporting part 14 to reset. After all are reset in place, the next feeding action can be performed.

[0067] 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. 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 feeding mechanism, characterized in that: It comprises a feeding assembly (1) and a first driving mechanism (2), wherein the feeding assembly (1) is driven by the first driving mechanism (2) to perform linear reciprocating motion along a first direction; The feeding assembly (1) comprises a bearing portion (11), a blocking and pushing portion (12) and a second driving mechanism (18); the bearing portion (11) is used for holding materials; the blocking and pushing portion (12) is driven by the second driving mechanism (18) to reciprocate along the first direction between the rear end and the front end of the bearing portion (11) to push the materials away from the bearing portion (11).

2. A feeding mechanism according to claim 1, characterized in that: The feeding assembly (1) further comprises a cantilever (13) extending along the first direction, the bearing portion (11) is arranged at the far end of the cantilever (13), the second driving mechanism (18) is arranged on the cantilever (13), and the driving end of the second driving mechanism (18) is connected to the blocking portion (12).

3. A feeding mechanism as claimed in claim 2, characterized in that: The second driving mechanism (18) is arranged at the proximal end of the cantilever (13), and the driving end of the second driving mechanism (18) is connected to the blocking and pushing portion (12) via a first push rod (17) extending along the cantilever (13).

4. A feeding mechanism as claimed in claim 2, characterized in that: The cantilever (13) is a channel-shaped component.

5. A feeding mechanism according to claim 1, characterized in that: The feeding assembly (1) also includes a bag-supporting mechanism, which includes a bag-supporting portion (14) and a third driving mechanism (19). A bag-supporting portion (14) is provided on both sides of the bearing portion (11) parallel to the first direction, respectively. The bag-supporting portions (14) on both sides are driven by the third driving mechanism (19) to move relative to each other to support the bag.

6. A feeding mechanism as claimed in claim 5, characterized in that: The feeding assembly (1) also includes a cantilever (13) extending along the first direction, the bearing portion (11) is arranged at the distal end of the cantilever (13), the second driving mechanism (18) and the third driving mechanism (19) are arranged at the proximal end of the cantilever (13), the driving end of the second driving mechanism (18) is connected to the blocking and pushing portion (12) through a first pushing rod (17) extending along the cantilever (13), the driving end of the third driving mechanism (19) is connected to a second pushing rod (16) extending along the cantilever (13), and the second pushing rod (16) is connected to the bag-supporting portions (14) on both sides through transmission components.

7. A feeding mechanism according to claim 1, characterized in that: The feeding mechanism further comprises a guiding mechanism (3), wherein the guiding mechanism (3) is arranged on the movement path of the feeding component (1), and the guiding mechanism (3) comprises guiding components (32) symmetrically arranged on both sides of the movement path of the feeding component (1) for guiding the sides of the packaging bag, wherein the guiding components (32) are in the form of a guide groove with a gradually decreasing entrance width.

8. A feeding mechanism according to any one of claims 1 to 7, characterized in that: The first driving mechanism (2) is connected to a plurality of feeding assemblies (1) via a movable frame (4); the plurality of feeding assemblies (1) are spaced apart on the movable frame (4) along a second direction, and the second direction is perpendicular to the first direction.

9. A feeding mechanism according to claim 8, characterized in that: The first driving mechanism (2) comprises two groups of linear reciprocating driving components (21), and the two ends of the moving frame (4) are respectively connected to a group of linear reciprocating driving components to synchronously drive the moving frame (4) to move along the first direction.

10. A feeding mechanism according to claim 9, characterized in that: The linear reciprocating drive assembly (21) comprises a conveyor belt (213), a transmission wheel (212) and a driving wheel (211); The conveyor belt (213) is wound around the two transmission wheels (212) and the driving wheel (211) at the same time, and the transmission direction of the conveyor belt is parallel to the first direction, and the conveyor belt is fixedly connected to the moving frame (4); The driving wheels (211) of the two sets of linear reciprocating drive components (21) are connected to a driving source simultaneously or separately.

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