A drop mechanism and dispensing system

Abstract

The utility model provides a kind of bag falling mechanism and dispensing system, bag falling mechanism includes: support shell;Driving portion, is installed on support shell;Bag falling portion, is installed on support shell, along vertical direction can slide, bag falling portion is transmission connection with driving portion, driving portion is used to drive bag falling portion to fall and eject the packing bag in packing bag holding mechanism.The utility model sets up bag falling mechanism including bag falling portion and driving portion, and sets up bag falling portion and driving portion transmission connection, so that driving portion can drive bag falling portion to fall and eject the packing bag in packing bag holding mechanism, can avoid packing bag to be electrostatically adsorbed on packing bag holding mechanism, and / or, packing bag is stuck by packing bag holding mechanism due to deformation, improve the operating stability of dispensing system.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of granular preparation dispensing, and particularly relates to a bag falling mechanism and a dispensing system provided with the bag falling mechanism. BACKGROUND

[0002] Granular preparation refers to an article in the shape of granules, such as granular preparation in medicine and condiments. Dispensing refers to the process of adding granular preparation from a container with a large volume to a packaging bag in a quantitative manner. Before and after dispensing, a large number of other operations need to be performed, such as production of packaging bags, conveying and transporting of packaging bags, sealing and bag falling of packaging bags, and a series of operations. For example, a new granular preparation dispensing device is disclosed in Chinese Utility Model Patent No. CN202320129639.4. The device is provided with a bag making mechanism, a packaging bag rotating mechanism, a dispensing driving mechanism, and a sealing and bag falling mechanism on a fixed frame in sequence. The packaging bag rotating mechanism is provided with an annular conveying structure, and a plurality of packaging bag clamping mechanisms are installed on the annular conveying structure. The bag making mechanism is located below the packaging bag rotating mechanism, and the packaging bag clamping mechanisms rotate along the annular conveying structure below the dispensing driving mechanism. The working process of the sealing and bag falling mechanism is as follows: the bag holder opening structure is used to pull open the bag holder so that the packaging bag with an open top can be unfolded flat; the heating sealing structure is used to heat seal the packaging bag; and after sealing, the bag holder opening assembly opens the medicine bag clamping mechanism, and the medicine bag falls freely.

[0003] Before the packaging bag falls, the granular preparation has been loaded into the packaging bag. After the packaging bag is sealed, the packaging bag falls completely relying on the gravity of the packaging bag. However, in the use process of the above-mentioned scheme, the packaging bag cannot fall out of the packaging bag clamping mechanism smoothly, for example, the packaging bag is adsorbed on the packaging bag clamping mechanism by static electricity, and / or the packaging bag is stuck by the packaging bag clamping mechanism due to deformation. This situation is particularly prone to occur when the granular preparation contained in the packaging bag is relatively light in weight.

[0004] Therefore, it is a technical problem to be solved by those skilled in the art to design a bag falling mechanism that can ensure that the packaging bag falls smoothly. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of bag falling mechanism, and packaging bag is ejected from the packaging bag holding mechanism by driving department driving bag falling department to fall, solve the problem that packaging bag is easily adsorbed by static electricity and / or is stuck by packaging bag holding mechanism due to deformation of packaging bag and cannot fall smoothly in the existing dispensing system.

[0006] To solve the above technical problems, the basic idea of the technical solution of the utility model is as follows:

[0007] The application discloses a bag falling mechanism, which comprises a supporting shell, a driving part installed on the supporting shell, and a bag falling part installed on the supporting shell and slidable in a vertical direction, wherein the driving part is in transmission connection with the bag falling part, and the driving part is used for driving the bag falling part to fall and push out a packaging bag in a packaging bag holding mechanism.

[0008] Further, the bag falling part comprises a bag falling frame in sliding connection with the supporting shell and in transmission connection with the driving part, and a bag falling rod arranged on the bag falling frame and vertically extending downward from the bag falling frame.

[0009] Further, the bag falling rod comprises a first part with an upper end connected with the bag falling frame, and a second part connected with a lower end of the first part, wherein a projection of the first part in a horizontal direction falls within a projection range of the second part in the horizontal direction.

[0010] Further, a bottom surface of the second part is arranged as a plane, or a strip-shaped groove is arranged on the bottom surface of the second part and penetrates through the bottom surface of the second part, and the strip-shaped groove is used for limiting a top of the packaging bag.

[0011] Further, a straight-line guide rail assembly extending in the vertical direction is arranged on the supporting shell, and the bag falling part is installed on a sliding block of the straight-line guide rail assembly.

[0012] Further, the driving part comprises a telescopic device arranged between the supporting shell and the bag falling part, or the driving part comprises a driving motor installed on the supporting shell, a crank with one end fixed on a working end of the driving motor and the other end provided with a driving head, wherein an extension direction of the driving head is parallel to the working end of the driving motor, and a strip-shaped opening is arranged on the bag falling part and extends in a horizontal direction perpendicular to the working end of the driving motor, and the driving head is arranged in the strip-shaped opening.

[0013] Further, the driving head is arranged as a column body and is in sliding connection with an upper side and / or a lower side of the strip-shaped opening, or the driving head is arranged as a roller and is rollable along the upper side or the lower side of the strip-shaped opening.

[0014] Further, a detection device is installed on the supporting shell and is in communication connection with the driving part, and is used for acquiring a position of the bag falling part.

[0015] Further, the supporting shell comprises a shell main body on which the driving part and the bag falling part are installed, and an opening corresponding to the bag falling part is arranged on a bottom of the shell main body, and a supporting frame extending in the vertical direction, wherein an upper end of the supporting frame is connected with the shell main body, and a lower end of the supporting frame is used for being connected with an external structure, and the supporting frame is used for supporting the shell main body.

[0016] The application further discloses a dispensing system provided with the bag falling mechanism.

[0017] After the above technical scheme is adopted, the application has the following beneficial effects compared with the prior art.

[0018] 1. The utility model discloses a bag falling mechanism includes falling bag part and drive part, and sets up falling bag part with drive part transmission connection, makes drive part can drive falling bag part to fall and keep the packing bag of packing bag holding mechanism and eject, can avoid packing bag and be adsorbed on packing bag holding mechanism by static electricity, and / or packing bag is stuck by packing bag holding mechanism because of deformation, improved operation stability of the dispensing system.

[0019] 2. The utility model discloses a strip -shaped recess is arranged on the bottom surface of the second part, can avoid packing bag to enter the clearance between the outer peripheral wall of falling bag rod and the inner wall of the space for containing packing bag, improve the working stability of the bag falling mechanism.

[0020] The specific embodiments of the utility model will be described in further detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings are part of the utility model, and be used to provide further understanding of the utility model, the illustrative embodiment of the utility model and its explanation are used to explain the utility model, but do not constitute improper limitation to the utility model. Obviously, the drawings in the following description are only some embodiments, and other drawings can be obtained according to these drawings without the premise of creating labor for ordinary skilled in the art. In the drawings:

[0022] Figure 1 It is the structure schematic drawing of packing bag holding mechanism in the utility model embodiment;

[0023] Figure 2 It is the plan view of packing bag holding mechanism in the utility model embodiment;

[0024] Figure 3 It is the sectional view of A-A in the utility model embodiment Figure 2 ;

[0025] Figure 4 It is the sectional view of B-B in the utility model embodiment Figure 2 ;

[0026] Figure 5 It is the sectional view of the middle part of packing bag holding mechanism when packing bag holding mechanism opens in the utility model embodiment;

[0027] Figure 6 It is the sectional view of packing bag holding mechanism at the space for containing packing bag when packing bag holding mechanism opens in the utility model embodiment;

[0028] Figure 7 It is the structure schematic drawing of fixed main body in the utility model embodiment;

[0029] Figure 8 It is the structural schematic view of the movable main body in the embodiment of the utility model;

[0030] Figure 9 It is the structural schematic view of the fixed main body far from the movable main body side in the embodiment of the utility model;

[0031] Figure 10 It is the structural schematic view of the bag pressing module in the embodiment of the utility model;

[0032] Figure 11 It is the structural schematic view of the push mechanism at the bag giving station in the embodiment of the utility model;

[0033] Figure 12 It is the structural schematic view of the first push piece in the embodiment of the utility model;

[0034] Figure 13 It is the structural schematic view of the push mechanism at the top sealing station in the embodiment of the utility model;

[0035] Figure 14 It is the structural schematic view of the second push piece in the embodiment of the utility model;

[0036] Figure 15 It is the structural schematic view of the push mechanism at the bag falling station in the embodiment of the utility model;

[0037] Figure 16 It is the structural schematic view of the third push piece in the embodiment of the utility model;

[0038] Figure 17 It is the schematic view of the first push piece and the packaging bag holding mechanism cooperation in the embodiment of the utility model;

[0039] Figure 18 It is the structural schematic view of the bag falling mechanism in the embodiment of the utility model;

[0040] Figure 19 It is the schematic view of the bag falling mechanism and the packaging bag holding mechanism cooperation in the embodiment of the utility model;

[0041] Figure 20 It is the schematic view of the bag falling mechanism and the packaging bag holding mechanism cooperation in the embodiment of the utility model;

[0042] Figure 21 It is the enlarged view of A in the embodiment of the utility model; Figure 20

[0043] Figure 22 It is the sectional view of C-C in the embodiment of the utility model; Figure 20

[0044] ​​Main element description in the figure: 1, packaging bag holding mechanism; 10, space for accommodating packaging bag; 11, fixed body; 111, first curved groove; 112, film guide groove; 113, mounting rod; 114, first assembly; 115, first mounting groove; 116, second mounting groove; 117, avoiding groove; 118, guide hole; 12, movable body; 121, second curved groove; 122, slot; 123, guide rod; 1231, limiting sheet; 124, compression spring; 13, connecting plate; 131, positioning convex; 14, bag pressing module; 141, base; 1411, ear plate; 142, bag pressing block; 1421, extrusion part; 1422, abutting part; 2, second assembly; 3, packaging bag; 31, side sealing edge; 41, driving structure; 411, push seat; 412, first driving motor; 413, detector; 414, crank connecting rod structure; 4141, first crank; 4142, connecting rod; 415, guide assembly; 4151, guide seat; 4152, guide column; 421, first push piece; 422, second push piece; 423, third push piece; 42-1, first push part; 42-2, second push part; 42-3, groove positioning part; 42-4, connecting part; 43, mounting seat; 431, first support plate; 432, second support plate; 433, sensor base; 51, shell body; 511, transparent window; 52, support frame; 521, fixed plate support column; 522, support column seat; 523, support column bottom plate; 531, bag falling frame; 5321, second driving motor; 5322, second crank; 5323, driving head; 5324, strip-shaped opening; 54, bag falling rod; 541, strip-shaped groove; 55, linear guide rail assembly; 551, guide rail; 552, sliding block; 56, detection device.

[0045] It should be noted that these drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0047] In the description of the utility model, it needs to explain, the term "upper", "lower", "front", "back", "left", "right", "vertical", "internal", "external" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and it is not indicated or implied that the device or element must have a specific orientation, a specific orientation and operation, therefore it cannot be understood as the limitation of the utility model.

[0048] In the description of the utility model, it needs to explain, unless otherwise explicitly provided and limited, the term "installation", "connection", "connection" should be broad sense, for example, it can be fixed connection, can be detachable connection, or integrally connected, can be mechanical connection, can be electrical connection, can be directly connected, or indirectly connected through intermediate medium.

[0049] As Figures 1 to 22 Indicated in the utility model embodiment, introduce a kind of dispensing system, dispensing system is used to carry out dispensing to granular preparation.

[0050] Dispensing system includes bag making mechanism, packaging bag conveying device, granular preparation dispensing device, top sealing device, and the pushing mechanism being arranged at the side of packaging bag conveying device, packaging bag conveying device includes transmission mechanism and the packaging bag holding mechanism 1 being installed on transmission mechanism.The control computer board of dispensing system is used to control the mutual cooperation of each part of dispensing system, completes dispensing work.

[0051] Transmission mechanism is preferably annular structure, and packaging bag holding mechanism 1 is transmitted along annular structure.Bag making mechanism is arranged below transmission mechanism, can prepare packaging bag 3, and packaging bag 3 prepared is transported into packaging bag holding mechanism 1, then packaging bag 3 is transmitted by transmission mechanism, moves to the lower side of granular preparation dispensing device, and granular preparation in granular preparation dispensing device is quantitatively dropped into packaging bag 3.Transmission mechanism continues to transmit packaging bag 3, moves to top sealing device, and top sealing device seals packaging bag 3, then falls bag.

[0052] In existing dispensing system, after the top of packaging bag 3 is heat-sealed, completely rely on the gravity of packaging bag 3 to realize falling bag, and packaging bag 3 cannot smoothly fall out of packaging bag holding mechanism 1, this case is especially prone to occur when the weight of granular preparation contained in packaging bag 3 is lighter.For example, packaging bag 3 is adsorbed on packaging bag holding mechanism 1 due to the influence of static electricity, or packaging bag 3 is stuck by packaging bag holding mechanism 1 due to deformation, and the case that packaging bag 3 is stuck by packaging bag holding mechanism 1 due to deformation includes: during top sealing process, the top opening of packaging bag 3 is not flatly unfolded.

[0053] Example 1

[0054] like Figures 18 to 22 As shown, in this embodiment, the dispensing system further includes a bag dropping mechanism, which is disposed above the packaging bag holding mechanism 1 and is used to knock the packaging bag 3 out of the packaging bag holding mechanism 1.

[0055] Specifically, the packaging bag holding mechanism 1 is provided with a space 10 for accommodating the packaging bag. The space 10 for accommodating the packaging bag extends vertically through the packaging bag holding mechanism. The bag dropping mechanism is located above the packaging bag holding mechanism 1 and includes a support shell, a drive unit, and a bag dropping unit. The drive unit and the bag dropping unit are mounted on the support shell. The bag dropping unit is slidable in the vertical direction and is connected to the drive unit. The drive unit is used to drive the bag dropping unit to fall and push the packaging bag 3 out of the packaging bag holding mechanism 1.

[0056] In this embodiment, the bag dropping section includes a bag dropping frame 531 and a bag dropping rod 54. The bag dropping frame 531 is slidably engaged with the support shell and is connected to the drive unit. The bag dropping rod 54 is disposed on the bag dropping frame 531 and extends vertically downward from the bag dropping frame 531. The bag dropping rod 54 corresponds to the space 10 for accommodating the packaging bag. The drive unit drives the bag dropping frame 531 to move vertically, and the bag dropping frame 531 drives the bag dropping rod 54 to move vertically. The lower end of the bag dropping rod 54 enters the space 10 for accommodating the packaging bag and knocks the packaging bag 3 out of the packaging bag holding mechanism 1.

[0057] As the bag-dropping lever 54 moves vertically downwards, its bottom applies a downward force to the packaging bag 3, allowing the bag 3 to smoothly detach from the packaging bag holding mechanism 1. Then, under the influence of gravity, it continues to fall, improving the operational stability of the dispensing system. Simultaneously, the structure of the packaging bag holding mechanism 1 does not need to be altered, demonstrating the high adaptability of the bag-dropping mechanism.

[0058] In this embodiment, the space 10 for accommodating the packaging bag can be a cylindrical annular cavity or a structure with a notch in the circumferential direction. For example, the space 10 for accommodating the packaging bag can be a space with a C-shaped cross-section.

[0059] In some possible embodiments, the packaging bag holding mechanism 1 is an integral structure, and the space 10 for accommodating the packaging bag is an annular cavity with openings at both ends downwards, extending vertically. The packaging bag holding mechanism 1 is also provided with a film guide groove 112, which is located on one side of the space 10 for accommodating the packaging bag and communicates with it. The extending direction of the film guide groove 112 is consistent with the extending direction of the space 10 for accommodating the packaging bag, and the film guide groove 112 is used to accommodate the side sealing edge 31 of the packaging bag 3.

[0060] In the embodiment, the bag falling rod 54 of the bag falling mechanism corresponds to the middle of the upper end opening of the space for accommodating the packaging bag 3.

[0061] In some possible embodiments, the packaging bag holding mechanism 1 comprises a fixed body 11 and a movable body 12, and the movable body 12 can move away from or close to the fixed body 11. The fixed body 11 is provided with a first curved groove 111, and the movable body 12 is provided with a second curved groove 121 corresponding to the first curved groove 111, and the first curved groove 111 and the second curved groove 121 form a space 10 for accommodating the packaging bag. When the movable body 12 moves to the side away from the fixed body 11 to make the packaging bag holding mechanism 1 open, the bag falling rod 54 corresponds to the middle of the space 10 for accommodating the packaging bag.

[0062] Specifically, when the driving part drives the bag falling part to move downward, the packaging bag holding mechanism 1 is in an open state. At this time, the cross section of the space 10 for accommodating the packaging bag is two C-shaped structures arranged in a spaced manner and opposite to each other. When the packaging bag holding mechanism 1 is in the open state, the bag falling rod 54 corresponds to the middle of the space 10 for accommodating the packaging bag.

[0063] In some specific embodiments, the movable body 12 is rotatably installed on the fixed body 11, or the movable body 12 is translatably installed on the fixed body 11. The movable body 12 is configured to have a first position and a second position. When the movable body 12 is in the first position, the movable body 12 is spaced apart from the fixed body 11, and the packaging bag holding mechanism 1 is in an open state. When the movable body 12 is in the second position, the movable body 12 abuts against the fixed body 11, and the packaging bag holding mechanism 1 is in a closed state.

[0064] Preferably, in the embodiment, the projection of the lower end of the bag falling rod 54 in the horizontal direction falls within the projection of the edge of the space 10 for accommodating the packaging bag in the horizontal direction, and the outer edge of the projection of the lower end of the bag falling rod 54 in the horizontal direction is close to the edge of the space 10 for accommodating the packaging bag in the horizontal direction.

[0065] Specifically, the bag falling rod 54 is a column extending in the vertical direction, and the cross section of the lower end of the bag falling rod 54 is the largest cross section of the bag falling rod 54.

[0066] By arranging the projection of the lower end of the bag falling rod 54 in the horizontal direction to fall within the projection of the edge of the space 10 for accommodating the packaging bag in the horizontal direction, it can be ensured that the bag falling rod 54 can smoothly enter the space 10 for accommodating the packaging bag.

[0067] By setting the outer edge of the projection of the lower end of the bag dropping rod 54 in the horizontal direction to be close to the projection of the edge of the space 10 for accommodating the packaging bag in the horizontal direction, the shape of the lower end of the bag dropping rod 54 can be adapted to the internal shape of the space 10 for accommodating the packaging bag, specifically, the shape of the outer peripheral wall of the lower end of the bag dropping rod 54 is close to the shape of the inner wall of the space 10 for accommodating the packaging bag, and the cross section of the lower end of the bag dropping rod 54 is smaller than the cross section of the inner wall of the space 10 for accommodating the packaging bag. Thus, during the process of the bag dropping rod 54 moving downward into the space 10 for accommodating the packaging bag, it is ensured that the lower end of the bag dropping rod 54 can accurately contact the top of the packaging bag 3.

[0068] In the embodiment, when the packaging bag holding mechanism 1 includes the fixed body 11 and the movable body 12, the "projection of the edge of the space 10 for accommodating the packaging bag in the horizontal direction" is the projection of the edge of the space 10 for accommodating the packaging bag in the horizontal direction when the packaging bag holding mechanism 1 is in the open state, i.e., the movable body 12 is in the first position.

[0069] Preferably, in the embodiment, the bottom surface of the bag dropping rod 54 is provided as a flat surface; or, a strip-shaped groove 541 is provided on the bottom surface of the bag dropping rod 54, and the strip-shaped groove 541 penetrates through the bottom surface of the bag dropping rod 54 and corresponds to the top of the packaging bag 3. Through the above-mentioned arrangement, it is possible to avoid the packaging bag 3 entering the gap between the outer peripheral wall of the bag dropping rod 54 and the inner wall of the space 10 for accommodating the packaging bag, and improve the working stability of the bag dropping mechanism.

[0070] Preferably, the groove width of the strip-shaped groove 541 gradually increases from top to bottom. During the process of the bag dropping rod 54 moving downward, the strip-shaped groove 541 on the bottom surface of the bag dropping rod 54 is sleeved on the top of the packaging bag 3, and the strip-shaped groove 541 can limit the packaging bag 3 during the process of the bag dropping rod 54 moving downward, so that the packaging bag 3 falls vertically downward along the space 10 for accommodating the packaging bag, and further improve the reliability of the working of the bag dropping mechanism.

[0071] In the embodiment, the packaging bag holding mechanism is provided with one space for accommodating the packaging bag, and the bag dropping frame is provided with one bag dropping rod corresponding to the space for accommodating the packaging bag; or, the packaging bag holding mechanism is provided with multiple spaces for accommodating the packaging bag, and the bag dropping frame is provided with multiple bag dropping rods corresponding to the multiple spaces for accommodating the packaging bag one by one.

[0072] In some specific embodiments, the movable body 12 is rotatably mounted on the fixed body 11, and the rotation axis of the movable body 12 is arranged close to the bottom of the fixed body 11 and the movable body 12. The first curved groove 111 is substantially parallel to the extending direction of the bag drop lever 54 on the side away from the movable body 12. In the state that the bag retaining mechanism 1 is opened by rotating the movable body 12 away from the fixed body 11, the second curved groove 121 is substantially parallel to the extending direction of the bag drop lever 54 on the side away from the fixed body 11.

[0073] In the present embodiment, the bag drop lever 54 extends in the vertical direction, and "substantially parallel to the extending direction of the bag drop lever 54" specifically means parallel to the vertical direction or having an included angle within 15° with the vertical direction.

[0074] Specifically, the fixed body 11 is provided with a film guide groove 112 for accommodating the side sealing edge 31 of the packaging bag 3, and the film guide groove 112 is arranged in the middle of the first curved groove 111, i.e. the film guide groove 112 is arranged on the side of the first curved groove 111 away from the movable body 12, and the film guide groove 112 is recessed from the middle of the first curved groove 111 to the direction away from the movable body 12. A slot 122 is further arranged in the middle of the second curved groove 121, i.e. the slot 122 is arranged on the side of the second curved groove 121 away from the fixed body 11, and the slot 122 is used for accommodating the edge of the packaging bag 3 opposite to the side sealing edge 31.

[0075] In the present embodiment, the film guide groove 112 extends in the vertical direction, and when the bag retaining mechanism 1 is in the closed state, the slot 122 extends obliquely from bottom to top to the direction close to the film guide groove 112. After the packaging bag 3 is introduced into the space 10 for accommodating the packaging bag, the slot 122 moves upward with the packaging bag 3, and the slot 122 extrudes the edge of the packaging bag 3 opposite to the side sealing edge 31 to open the opening at the top of the packaging bag 3. When the bag retaining mechanism 1 is in the opened state, the slot 122 is substantially in the vertical state, so that the side sealing edge 31 of the packaging bag 3 and the edge opposite to the side sealing edge 31 are no longer extruded in the direction from the slot 122 to the film guide groove 112, i.e. the movable body 12 no longer applies pressure to the packaging bag 3.

[0076] In the present embodiment, when the bag retaining mechanism 1 is in the opened state, the distance between the bottom of the slot 122 and the bottom of the film guide groove 112 is greater than or equal to the distance between the outer edge of the side sealing edge 31 of the packaging bag 3 and the edge opposite to the side sealing edge 31, i.e. the distance between the bottom of the slot 122 and the bottom of the film guide groove 112 is greater than or equal to the width of the packaging bag 3.

[0077] Preferably, as shown in FIG. 1, the bag retaining mechanism 1 is arranged on the side of the bag drop lever 54 away from the bag drop lever 54, and the bag retaining mechanism 1 is arranged on the side of the bag drop lever 54 close to the bag drop lever 54. Figure 22As shown, in the state where the packaging bag holding mechanism 1 is opened, the horizontal distance between the side of the first curved groove 111 away from the movable body 12 and the outer peripheral wall of the bag dropping rod 54 is substantially the same as the horizontal distance between the side of the second curved groove 121 away from the fixed body 11 and the outer peripheral wall of the bag dropping rod 54.

[0078] The "horizontal distance between the side of the first curved groove 111 away from the movable body 12 and the outer peripheral wall of the bag dropping rod 54 is substantially the same as the horizontal distance between the side of the second curved groove 121 away from the fixed body 11 and the outer peripheral wall of the bag dropping rod 54" specifically includes "the horizontal distance between the side of the first curved groove 111 away from the movable body 12 and the outer peripheral wall of the bag dropping rod 54 is the same as the horizontal distance between the side of the second curved groove 121 away from the fixed body 11 and the outer peripheral wall of the bag dropping rod 54" and "the difference between the horizontal distance between the side of the first curved groove 111 away from the movable body 12 and the outer peripheral wall of the bag dropping rod 54 and the horizontal distance between the side of the second curved groove 121 away from the fixed body 11 and the outer peripheral wall of the bag dropping rod 54 is less than or equal to 10 mm".

[0079] Specifically, during the bag dropping process, the packaging bag holding mechanism 1 is in the opened state, and the driving part drives the bag dropping part to move downward, and at least part of the bag dropping rod 54 is inserted into the space 10 for accommodating the packaging bag from top to bottom. The horizontal distance between the slot 122 and the bag dropping rod 54 and the horizontal distance between the film guide groove 112 and the bag dropping rod 54 are substantially the same.

[0080] In some specific embodiments, the bag dropping frame 531 is installed on the support shell through a straight linear guide assembly 55 extending in the vertical direction, and the bag dropping rod 54 is installed on the bag dropping frame 531. The driving part is installed on the support shell and is in transmission connection with the bag dropping frame 531 for driving the bag dropping frame 531 to slide along the straight linear guide assembly 55. The bag dropping rod 54 is installed on the bag dropping frame 531 and extends vertically downward from the bag dropping frame 531.

[0081] In some specific embodiments, the bag dropping rod 54 includes a first part and a second part, and the first part and the second part of the bag dropping rod 54 are connected as one. The upper end of the first part of the bag dropping rod 54 is connected to the bag dropping frame 531, and the upper end of the first part can be installed on the bag dropping frame 531 by any installation method such as screws, bolts, etc. The second part of the bag dropping rod 54 is connected to the lower end of the first part, and the second part extends vertically downward from the lower end of the first part, and the projection of the first part in the horizontal direction falls within the projection of the second part in the horizontal direction.

[0082] In the embodiment, the projection of the second part in the horizontal direction falls within the range of the projection of the edge of the space 10 for accommodating the packaging bag in the horizontal direction, and the outer edge of the projection of the second part in the horizontal direction is close to the projection of the edge of the space 10 for accommodating the packaging bag in the horizontal direction. The strip-shaped groove 541 is arranged on the bottom surface of the second part.

[0083] Preferably, the installation position of the bag falling rod 54 on the bag falling frame 531 is adjustable. Specifically, a waist-shaped hole is arranged on the bag falling frame 531, and a screw passes through the waist-shaped hole on the bag falling frame 531 and is connected with the bag falling rod 54 to install the bag falling rod 54 on the bag falling frame 531. Preferably, the waist-shaped hole extends in the direction from the fixed body to the movable body. Thus, the operator can adjust the installation position of the bag falling rod 54 according to the actual situation, so that the bag falling rod can smoothly enter the space for accommodating the packaging bag, and collision between the bag falling rod and the packaging bag retaining mechanism is avoided.

[0084] In the embodiment, the bag falling rod 54 can be arranged as an integral piece, or the second part can be detachably installed on the first part to splice the bag falling rod 54.

[0085] Specifically, in the embodiment, the linear guide rail assembly 55 includes a guide rail 551 installed on the support shell and a sliding block 552 installed on the guide rail 551. The guide rail 551 extends in the vertical direction, and the sliding block 552 slides along the guide rail 551. The bag falling frame 531 is installed on the sliding block 552.

[0086] In some possible embodiments, the driving part includes a telescopic device arranged between the support shell and the bag falling frame 531. The telescopic device can be a hydraulic cylinder installed on the support shell, and the movable end of the hydraulic cylinder is connected to the bag falling frame 531.

[0087] In another possible embodiment, the driving part includes a second driving motor 5321 installed on the support shell, and the second driving motor 5321 is in driving connection with the bag falling frame 531 through a crank sliding block 552 transmission mechanism.

[0088] In the embodiment, the crank slider 552 transmission mechanism comprises a second crank 5322 and a strip-shaped opening 5324. Specifically, one end of the second crank 5322 is fixed to the working end of the second driving motor 5321, and the other end of the second crank 5322 is provided with a driving head 5323, the extension direction of the driving head 5323 is parallel to the working end of the second driving motor 5321. The strip-shaped opening 5324 is arranged on the pocket frame 531, and the strip-shaped opening 5324 extends along the horizontal direction perpendicular to the working end of the second driving motor 5321, and the driving head 5323 is arranged in the strip-shaped opening 5324. Thus, in the process of driving the second driving motor 5321 to rotate the second crank 5322, the driving head 5323 drives the pocket frame 531 to slide along the guide rail 551 of the linear guide rail assembly 55 through the strip-shaped opening 5324.

[0089] In some possible embodiments, the driving head 5323 is arranged as a column body, and is in sliding fit with the upper side and / or the lower side of the strip-shaped opening 5324.

[0090] Preferably, in the embodiment, the driving head 5323 is a cylindrical body, the diameter of the cylindrical body is less than the length of the strip-shaped opening 5324, and the diameter of the cylindrical body is equal to the width of the strip-shaped opening 5324. In the process of rotating the second crank 5322 to the first direction, the driving head 5323 abuts against the upper side of the strip-shaped opening 5324 and slides along the strip-shaped opening 5324, thereby driving the pocket frame 531 to move upward, and in the process of rotating the second crank 5322 to the second direction, the driving head 5323 abuts against the lower side of the strip-shaped opening 5324 and slides along the strip-shaped opening 5324, thereby driving the pocket frame 531 to move downward.

[0091] In some possible embodiments, the driving head 5323 is arranged as a column body, and is in sliding fit with the upper side and / or the lower side of the strip-shaped opening 5324.

[0092] In the embodiment, the diameter of the roller is slightly less than the width of the strip-shaped opening 5324, and the roller is installed on the second crank through a rotating shaft. In the process of rotating the second crank 5322 to the first direction, the roller abuts against the upper side of the strip-shaped opening 5324 and rolls along the upper side of the strip-shaped opening 5324, thereby driving the pocket frame 531 to move upward, and in the process of rotating the second crank 5322 to the second direction, the roller abuts against the lower side of the strip-shaped opening 5324 and rolls along the lower side of the strip-shaped opening 5324, thereby driving the pocket frame 531 to move downward.

[0093] In some specific embodiments, the working end of the second driving motor 5321 is in key connection with the second crank 5322. Specifically, the working end of the second driving motor 5321 is a motor shaft of the second driving motor 5321, and the motor shaft is fixed with the second crank 5322 through key groove, key and setscrew fit, and the setscrew is used for axial positioning of the second crank 5322.

[0094] In some preferred embodiments, the second drive motor 5321 is driven by a reducer and the second crank 5322. Specifically, the motor shaft of the second drive motor 5321 is driven by the input shaft of the reducer, and the second crank 5322 is keyed to the output shaft of the reducer.

[0095] Preferably, a detection device 56 is installed on the support shell. The detection device 56 is communicatively connected to the drive unit and is used to obtain the position of the bag drop frame 531.

[0096] In some specific embodiments, the detection device 56 includes a photoelectric sensor mounted on a support housing. The photoelectric sensor has a probe that emits a detection signal. A detection part is provided on the bag dropper 531, located on the side of the photoelectric sensor's probe emitting the signal along the moving path of the bag dropper 531. This detection part is used so that after the bag dropper 531 moves to a set position, the detection signal emitted by the photoelectric sensor is reflected by the detection part and received by the photoelectric sensor to generate a position detection signal.

[0097] Specifically, there are two photoelectric sensors arranged vertically at intervals. A detection part is provided on the bag dropping frame 531. When the second crank 5322 rotates in the first direction, it drives the bag dropping frame 531 to move upward. When the upper photoelectric sensor detects the detection part, the second drive motor 5321 stops running. When the second crank 5322 rotates in the second direction, it drives the bag dropping frame 531 to move downward. When the lower photoelectric sensor detects the detection part, the second drive motor 5321 stops running.

[0098] Preferably, in this embodiment, the mounting height of the photoelectric sensor on the support shell is adjustable.

[0099] Preferably, in this embodiment, the driving unit drives the bag dropping unit to move downward until the lower end of the bag dropping rod 54 is close to the bottom of the packaging bag holding mechanism 1.

[0100] like Figure 19 As shown, in some specific embodiments, the support shell includes a shell body 51 and a support frame 52. The support frame 52 is mounted on the frame of the dispensing system, and the shell body 51 is mounted on the support frame 52. The drive unit of the bag dropping mechanism and the bag dropping frame 531 are mounted on the shell body 51. The bottom of the shell body 51 is provided with an opening corresponding to the bag dropping rod 54.

[0101] In some specific embodiments, the shell body 51 includes two first side plates arranged opposite each other, two second side plates arranged opposite each other, and a top cover plate. The two first side plates, two second side plates and the top cover plate are spliced ​​together to form a shell body 51 with an open bottom.

[0102] Preferably, the second driving motor 5321 is installed on the first side plate, the linear guide rail assembly 55 is installed on the second side plate, the linear guide rail assembly 55 is provided with two groups of parallel linear guide rails, and the pocket frame 531 is fixedly connected with the sliders 552 of the two linear guide rail assemblies 55.

[0103] In some specific embodiments, a reducer is installed on the outside of the first side plate, the second driving motor 5321 is installed on the reducer, the output shaft of the reducer extends to the inside of the first side plate, and the second crank 5322 is installed on the output shaft of the reducer.

[0104] The support frame 52 extends in the vertical direction, the upper end of the support frame 52 is connected with the shell body 51, and the lower end of the support frame 52 is used for connecting with an external structure, which is specifically a rack of a dispensing system.

[0105] Preferably, the installation height and / or installation angle of the shell body 51 on the support frame 52 is adjustable.

[0106] In some specific embodiments, the support frame 52 comprises a fixed plate support column 521 extending in the vertical direction, the upper end of the fixed plate support column 521 is provided with a support column seat 522, the lower end of the fixed plate support column 521 is provided with a support column bottom plate 523, the shell body 51 is installed on the support column seat 522, and the support frame 52 is installed on the rack through the support column bottom plate 523. The installation position of the support column seat 522 on the fixed plate support column 521 is adjustable. Optionally, the support column seat 522 is sleeved on the fixed plate support column 521, and the relative position between the support column seat 522 and the fixed plate support column 521 is locked through a jackscrew.

[0107] Preferably, the pocket frame 531, the detection device 56 and the support column seat 522 are connected with the same second side plate of the shell body 51. A transparent window 511 and / or an inspection opening are arranged on the side wall of the shell body 51. In this embodiment, the transparent window 511 is installed on the other second side plate of the shell body 51 opposite to the second side plate on which the pocket frame 531 is installed.

[0108] Preferably, the second side plate provided with the transparent window 511 is provided with a bending portion at the bottom, and the bending portion is screw-connected with the rack.

[0109] In this embodiment, a control method of the dispensing system is also introduced, which comprises the following steps:

[0110] S1: The conveying mechanism conveys the packaging bag holding mechanism 1 to a bag falling station;

[0111] S2: The pushing mechanism at the bag falling station opens the packaging bag holding mechanism 1 and the bag pressing module 14;

[0112] S3: The bag falling mechanism operates to fall the packaging bag 3 in the packaging bag holding mechanism 1.

[0113] S4: the bag falling mechanism is reset;

[0114] S5: the pushing mechanism is reset.

[0115] In the embodiment of the utility model, in order to guarantee the working reliability of the pushing mechanism, the top sealing station and the bag falling station are independently arranged. After top sealing, the pushing mechanism at the top sealing station is reset, and the packaging bag holding mechanism 1 is reset. During the conveying of the packaging bag holding mechanism 1 to the bag falling station by the conveying mechanism, the packaging bag 3 after top sealing is deformed by the extrusion of the fixed main body 11 and the movable main body 12. By arranging the bag falling module, the reliability of the bag falling can be guaranteed.

[0116] Specifically, the conveying mechanism is provided with a bag granting station, a dispensing station, a top sealing station and a bag falling station. The bag granting station, the top sealing station and the bag falling station are respectively provided with a pushing mechanism. The pushing mechanism arranged at the bag granting station, the top sealing station and the bag falling station is respectively used for opening the bag pressing module 14, opening the packaging bag holding mechanism 1 and opening the bag pressing module 14 and the packaging bag holding mechanism 1 simultaneously.

[0117] In the embodiment, the opening of the packaging bag holding mechanism 1 is specifically that the movable main body 12 of the packaging bag holding mechanism 1 is pushed to rotate or translate away from the fixed main body 11. The opening of the bag pressing module 14 is specifically that the extrusion of the bag pressing module 14 on the packaging bag 3 is released, so that the packaging bag 3 can enter the space 10 for accommodating the packaging bag or the packaging bag 3 can be separated from the space 10 for accommodating the packaging bag.

[0118] In the embodiment, the opening of the bag pressing module 14 and the packaging bag holding mechanism 1 simultaneously is specifically that the pushing mechanism can keep the bag pressing module 14 and the packaging bag holding mechanism 1 in the open state simultaneously.

[0119] In the embodiment, the working process of the dispensing system is as follows: first, the conveying mechanism conveys the packaging bag holding mechanism 1 to the bag granting station. The pushing mechanism at the bag granting station operates, the first pushing piece 421 feeds towards the direction close to the conveying mechanism, pushes the bag pressing block 142 of the bag pressing module 14 to open, and after the packaging bag 3 made by the bag making mechanism enters the packaging bag holding mechanism 1, the pushing mechanism at the bag granting station drives the first pushing piece 421 to retreat away from the conveying mechanism, and the packaging bag 3 is fixed in the packaging bag holding mechanism by the bag pressing block 142 of the bag pressing module 14.

[0120] Then, the conveying mechanism transports the packaging bag 3 to the dispensing station, moving it below the granule dispensing device. The granules in the dispensing device are quantitatively dispensed into the packaging bag 3. After dispensing, the conveying mechanism transports the packaging bag holding mechanism 1 to the top sealing station. At this time, the pushing mechanism at the top sealing station operates, and the second pushing member 422 moves towards the conveying mechanism, pushing the guide rod 123 to open the packaging bag holding mechanism 1. The top sealing device seals the top opening of the packaging bag 3. After sealing, the pushing mechanism at the top sealing station drives the second pushing member 422 to move away from the conveying mechanism.

[0121] Finally, the conveying mechanism transfers the packaging bag holding mechanism 1 to the bag dropping station. At this time, the pushing mechanism at the bag dropping station operates, and the third pushing member 423 moves towards the conveying mechanism, pushing the guide rod 123 to open the packaging bag holding mechanism 1. At the same time, it pushes the bag pressing block 142 of the bag pressing module 14 to open. The bag dropping mechanism operates, knocking the packaging bag 3 out of the packaging bag holding mechanism 1. The packaging bag 3 falls into the medicine box. The bag dropping mechanism resets. After the bag dropping mechanism resets, the pushing mechanism at the bag dropping station drives the third pushing member 423 to move away from the conveying mechanism.

[0122] Example 2

[0123] like Figures 1 to 10 As shown, this embodiment is used to further discuss the packaging bag holding mechanism 1 in the above embodiment one.

[0124] The movable body 12 is rotatably mounted on the fixed body 11. Specifically, a connecting structure is provided between the fixed body 11 and the movable body 12, and the movable body 12 is rotatably engaged with the fixed body 11 through the connecting structure. The rotation axis of the movable body 12 is located near the bottom of the fixed body 11 and the movable body 12.

[0125] The connection structure includes two connecting plates 13, which are respectively located on the left and right sides of the packaging bag holding mechanism 1.

[0126] The first end of the connecting plate 13 is fixedly connected to the movable body 12, and the second end of the connecting plate 13 is rotatably engaged with the bottom of the fixed body 11.

[0127] The first end of the connecting plate 13 is provided with a mounting hole. The connecting plate 13 is connected to the movable body 12 by a connector that passes through the mounting hole and is fixed to the movable body 12. The connector can be a screw or a bolt. A positioning hole is provided on one side of the mounting hole. A positioning protrusion 131 corresponding to the positioning hole is provided on the side wall of the movable body 12. The positioning protrusion 131 is inserted into the positioning hole.

[0128] In the embodiment, the second end of the connecting plate 13 is mounted on the fixed body 11 through a flange bearing.

[0129] In some specific embodiments, the second end of the connecting plate 13 is provided with a through hole, and a flange bearing is arranged in the through hole and mounted on the connecting plate 13 through screws and / or bolts. A shaft sleeve is mounted on the fixed body 11 through screws and / or bolts, and the flange bearing is sleeved on the shaft sleeve.

[0130] In the embodiment, a reset structure is further arranged between the fixed body 11 and the movable body 12, and the reset structure is used to drive the movable body 12 to rotate towards the side close to the fixed body 11.

[0131] Specifically, as shown in Figure 3 and Figure 5 The reset structure includes a guide rod 123 and a compression spring 124.

[0132] In some preferred embodiments, the fixed body 11 is provided with a first mounting groove 115 on the side away from the movable body 12, one end of the guide rod 123 is fixedly connected with the movable body 12, and the other end extends through the fixed body 11 to the first mounting groove 115; a limiting piece 1231 is arranged on the end of the guide rod 123 away from the movable body 12, the compression spring 124 is sleeved on the guide rod 123, and the two ends of the compression spring 124 respectively abut against the limiting piece 1231 and the groove bottom of the first mounting groove 115. The limiting piece 1231 is hidden in the first mounting groove 115, which can improve the integrity of the appearance of the packaging bag retaining mechanism 1, and at the same time, can avoid accidental touch.

[0133] The guide rod 123 is arranged in a circular arc shape, the fixed body 11 is provided with a guide hole 118 matched with the guide rod 123, and the center of the guide rod 123 is coaxial with the rotation axis of the movable body 12.

[0134] In some specific embodiments, the fixed body 11 is provided with at least one first curved groove 111, and the movable body 12 is provided with at least one second curved groove 121, the first curved groove 111 and the second curved groove 121 are oppositely arranged, and a space 10 for accommodating a packaging bag is formed between the first curved groove 111 and the second curved groove 121.

[0135] The first curved groove 111 and the second curved groove 121 are the same in number and one-to-one corresponding between the first curved groove 111 and the second curved groove 121. In some possible embodiments, one first curved groove 111 and one second curved groove 121 can be provided, and the packaging bag holding mechanism 1 can hold one packaging bag 3; or two first curved grooves 111 and two second curved grooves 121 can be provided, and the packaging bag holding mechanism 1 can hold two packaging bags 3 at the same time; or three first curved grooves 111 and three second curved grooves 121 can be provided, and the packaging bag holding mechanism 1 can hold three packaging bags 3 at the same time.

[0136] When the first curved groove 111 and the second curved groove 121 are provided in plurality, the plurality of first curved grooves 111 are arranged in the horizontal direction on the fixed body 11 at intervals, and the plurality of second curved grooves 121 are arranged in the horizontal direction on the movable body 12 at intervals.

[0137] The bag pressing module 14 is installed on the side of the fixed body 11 away from the movable body 12, and includes a base 141, a bag pressing block 142, and an elastic member. The bag pressing block 142 is installed on the base 141 and rotationally fitted with the base 141. The elastic member is arranged between the bag pressing block 142 and the base 141. The film guide groove 112 is provided with a clearance on the groove wall on the side close to the bag pressing module 14. The elastic member is used to forcibly push the bag pressing block 142 to rotate into the film guide groove 112, so that the bag pressing block 142 at least partially extends into the film guide groove 112, and the side sealing edge 31 of the packaging bag 3 is pressed against the groove wall on the side of the film guide groove 112 away from the bag pressing module 14.

[0138] In the embodiment, the bag pressing module 14 is provided as a separate module. Specifically, the base 141 is provided with a rotating shaft, the bag pressing block 142 is installed on the rotating shaft, and the elastic member is a torsion spring sleeved on the rotating shaft. One end of the torsion spring abuts against the bag pressing block 142, and the other end of the torsion spring abuts against the base 141.

[0139] The side of the fixed body 11 away from the movable body 12 is provided with a second mounting groove 116. The second mounting groove 116 is arranged on one side of the film guide groove 112, and the second mounting groove 116 and the film guide groove 112 are communicated through the clearance. The base 141 is installed on the groove bottom of the second mounting groove 116 through a screw. The base 141 is provided with a shaft seat extending away from the movable body 12. The shaft seat includes two oppositely arranged ear plates 1411, and the two ends of the rotating shaft are respectively fixed on the two ear plates 1411. The bag pressing block 142 is arranged between the two ear plates 1411, and the two ends of the bag pressing block 142 are respectively attached to the two ear plates 1411.

[0140] The pressing block 142 comprises a pressing part 1421 extending towards the side close to the film guide groove 112, and an abutting part 1422 extending towards the side away from the film guide groove 112.

[0141] In some specific embodiments, the fixed body 11 is provided with a mounting rod 113 penetrating through the movable body 12, and the mounting rod 113 is provided with a first assembly part 114 at the end away from the fixed body 11, and the first assembly part 114 is arranged at a distance from the side of the movable body 12 away from the fixed body 11. The transmission mechanism is provided with a second assembly part 2, and the first assembly part 114 and the second assembly part 2 are in sleeve joint.

[0142] Preferably, as shown in the drawings, Figure 1 In the embodiment, the fixed body 11 and the movable body 12 are spliced to form two spaces 10 for accommodating packaging bags, and the fixed body 11 is provided with a film guide groove 112 corresponding to each of the two spaces 10 for accommodating packaging bags, and a second mounting groove 116 is arranged between two adjacent film guide grooves 112, and the two sides of the second mounting groove 116 are communicated with the two film guide grooves 112 through the avoiding openings. A base 141 is arranged on the groove bottom in the second mounting groove 116, and the base 141 is provided with an axle seat at each end, and two pressing blocks 142 corresponding to the two film guide grooves 112 are respectively installed on the axle seats at the two ends of the base 141. Preferably, the abutting parts 1422 of the two pressing blocks 142 extend to the middle part of the second mounting groove 116. In the embodiment, the pressing blocks 142 are hidden in the second mounting groove 116, which can ensure the integrity of the appearance of the packaging bag holding mechanism 1 and avoid accidental touch.

[0143] In the embodiment, the bag falling frame is provided with two bag falling rods, and the two bag falling rods are arranged one-to-one corresponding to the two spaces for accommodating packaging bags between the fixed body and the movable body.

[0144] Embodiment Three

[0145] As shown in the drawings, Figures 11 to 17 The embodiment is used to further discuss the pushing and pressing mechanism in the above-mentioned embodiment one.

[0146] The pushing and pressing mechanism comprises a driving structure 41 and a pushing part, the driving structure 41 is arranged on the side of the transmission mechanism, the driving end of the driving structure 41 is retractable in the direction towards the transmission mechanism, and the pushing part is installed on the driving end of the driving structure 41, and is used to push the movable body 12 to open the packaging bag holding mechanism 1, and / or is used to push the pressing block 14 to open it.

[0147] The pushing members include a first pushing member 421, a second pushing member 422, and a third pushing member 423, which are respectively installed at the driving end of the driving structure 41 at the bag-granting station, the top-sealing station, and the bag-dropping station. The driving structure 41 includes a pushing seat 411, a power source, and a detector 413, and further includes a mounting seat 43, and a guide assembly 415 is arranged between the pushing seat 411 and the mounting seat 43, the pushing seat 411 is installed on the mounting seat 43 through the guide assembly 415, and the pushing members are installed on the pushing seat 411. The power source is installed on the mounting seat 43 and is in transmission connection with the pushing members and / or the pushing seat 411. The detector 413 is in communication connection with the power source and is used for detecting the position of the pushing seat 411.

[0148] The first pushing member 421 includes a second pushing part 42-2 for pushing the bag-pressing module 14, the second pushing member 422 includes a first pushing part 42-1 for pushing the movable body 12, and the third pushing member 423 includes a first pushing part 42-1 for pushing the movable body 12 and a second pushing part 42-2 for pushing the bag-pressing module 14.

[0149] In some specific embodiments, the movable body 12 is movably installed on the fixed body 11 at a side close to the conveying mechanism, the first pushing part 42-1 corresponds to the guide rod 123, and the second pushing part 42-2 corresponds to the bag-pressing block 142.

[0150] In the embodiment, the fixed body 11 and the movable body 12 are spliced to form two spaces 10 for accommodating packaging bags, and the fixed body 11 is provided with two film-guiding grooves 112 that respectively correspond to the two spaces 10 for accommodating packaging bags. The bag-pressing module 14 includes two groups of bag-pressing blocks 142 that respectively correspond to the two spaces 10 for accommodating packaging bags, and the two groups of bag-pressing blocks 142 are arranged in sequence along the conveying direction of the conveying mechanism and respectively correspond to the two film-guiding grooves 112.

[0151] Specifically, “one group of bag-pressing blocks 142” can include only one bag-pressing block 142 or can include a plurality of bag-pressing blocks 142 that are arranged at intervals along the length direction of the film-guiding groove 112. “One group of bag-pressing blocks 142” is pushed by one second pushing part 42-2.

[0152] In the embodiment, one bag-pressing block 142 can be provided with one extrusion part 1421 or can be provided with a plurality of extrusion parts 1421 that are arranged at intervals along the length direction of the film-guiding groove 112. When a bag-pressing block 142 is provided with a plurality of extrusion parts 1421, the plurality of extrusion parts 1421 simultaneously extrude the side sealing edge 31 of the packaging bag 3.

[0153] The pushing mechanism at the bag granting station is used to open two groups of bag pressing blocks 142 corresponding to the two film guide grooves 112 in sequence. In some specific embodiments, the first pushing member 421 is provided with two second pushing portions 42-2 for pushing the two groups of bag pressing blocks 142, and the two second pushing portions 42-2 for pushing the two groups of bag pressing blocks 142 are arranged in sequence in the opposite direction of the transmission direction of the transmission mechanism.

[0154] Specifically, in the process of the driving structure 41 of the pushing mechanism at the bag granting station feeding the first pushing member 421 to push the bag pressing module 14 on the packaging bag holding mechanism 1, one second pushing portion 42-2 on the first pushing member 421 pushes a group of bag pressing blocks 142 to rotate, and the other second pushing portion 42-2 on the first pushing member 421 is misaligned with the other group of bag pressing blocks 142.

[0155] Preferably, at least the first pushing member 421 is provided with a slot-shaped positioning portion 42-3, and the slot of the slot-shaped positioning portion 42-3 is sleeved and positioned with the outer side wall of the film guide groove 112.

[0156] In some specific embodiments, the two groups of bag pressing blocks 142 are arranged between the two film guide grooves 112, and specifically, the second mounting groove 116 is arranged between the two film guide grooves 112, the opposite groove walls of the two film guide grooves 112 are provided with avoiding openings, the second mounting groove 116 is communicated with the two film guide grooves 112 through the two avoiding openings, and the two groups of bag pressing blocks 142 are respectively installed at the two avoiding openings through shafts.

[0157] In the embodiment, “a group of bag pressing blocks 142” includes one bag pressing block 142, a base 141 is arranged on the groove bottom in the second mounting groove 116, both ends of the base 141 are respectively provided with an axle seat, and the two bag pressing blocks 142 corresponding to the two film guide grooves 112 are respectively installed on the axle seats at both ends of the base 141. Preferably, the abutting portions 1422 of the two bag pressing blocks 142 are both extended to the middle part of the second mounting groove 116.

[0158] As shown in Figure 11 , Figure 12 and Figure 17 , in the embodiment, the slot-shaped positioning portion 42-3 of the first pushing member 421 is arranged between the two second pushing portions 42-2 of the first pushing member 421. The fixed main body 11 is further provided with an avoiding groove 117, the avoiding groove 117 is arranged on the side of the film guide groove 112 away from the second mounting groove 116, and the slot-shaped positioning portion 42-3 of the first pushing member 421 is sleeved on the outer side wall of the film guide groove 112 between the avoiding groove 117 and the second mounting groove 116.

[0159] The first pushing member 421 is provided with two second pushing portions 42-2 for pushing the two groups of bag pressing blocks 142 respectively, one second pushing portion 42-2 of the first pushing member 421 corresponds to the abutting portion 1422 of one group of bag pressing blocks 142, and the other second pushing portion 42-2 of the first pushing member 421 corresponds to the avoiding groove 117.

[0160] Specifically, as shown in Figure 17 , the first pushing member 421 is provided with a groove-shaped positioning portion 42-3 extending from between the two second pushing portions 42-2 to the direction close to the conveying mechanism.

[0161] When it is necessary to push the bag pressing blocks 142 on the left side, the groove-shaped positioning portion 42-3 is sleeved on the outer side wall of the film guide groove 112 on the left side, and the second pushing portion 42-2 on the right side pushes the bag pressing blocks 142 on the left side to rotate in the direction away from the film guide groove 112 on the left side. When it is necessary to push the bag pressing blocks 142 on the right side, the groove-shaped positioning portion 42-3 is sleeved on the outer side wall of the film guide groove 112 on the right side, and the second pushing portion 42-2 on the left side pushes the bag pressing blocks 142 on the right side to rotate in the direction away from the film guide groove 112 on the right side.

[0162] As shown in Figure 13 and Figure 14 , in the present embodiment, the second pushing member 422 of the pushing mechanism at the top sealing station only has one first pushing portion 42-1 for pushing the guiding rod 123 away from one end of the movable main body 12, so that the movable main body 12 rotates in the direction away from the fixed main body 11, and the packaging bag holding mechanism 1 is opened. Thus, the top of the packaging bag 3 extends to a flat state, facilitating the sealing of the top sealing device.

[0163] As shown in Figure 15 and Figure 16 , in the present embodiment, the third pushing member 423 is provided with two second pushing portions 42-2 corresponding to the two groups of bag pressing blocks 142 along the conveying direction of the conveying mechanism, and one first pushing portion 42-1 corresponding to the end of the guiding rod 123 away from the movable main body 12. Specifically, the two second pushing portions of the third pushing member 423 correspond to the abutting portions 1422 of the two groups of bag pressing blocks 142 respectively.

[0164] In the present embodiment, the first mounting groove 115 is arranged above the second mounting groove 116 and close to the second mounting groove 116.

[0165] In some possible embodiments, the power source includes a first driving motor 412, and the first driving motor 412 is mounted on the mounting seat 43 and is in driving connection with the pushing member and / or the pushing seat 411 through the crank connecting rod structure 414.

[0166] In some specific embodiments, the mounting base 43 comprises a first support plate 431 and a second support plate 432, the first support plate 431 extends in the horizontal direction, the guide assembly 415 comprises a guide seat 4151 and a guide post 4152 arranged on the first support plate 431, the guide seat 4151 is provided with a guide hole 118, and the guide post 4152 is inserted into the guide hole 118 and slidably connected with the guide seat 4151.

[0167] The guide seat 4151 is provided with two guide posts 4152 which are arranged at intervals and slidably connected with the guide seat 4151 respectively. The push seat 411 is mounted on one end of the two guide rods 123 close to the conveying mechanism.

[0168] The second support plate 432 is fixedly connected with the first support plate 431, the second support plate 432 is L-shaped and comprises a first part perpendicular to the first support plate 431 and a second part parallel to the first support plate 431, and one end of the first part away from the second part is fixedly connected with the first support plate 431 by a screw.

[0169] The guide assembly 415 and the crank linkage structure 414 are mounted on one side of the first support plate 431 away from the second support plate 432, and the first driving motor 412 is mounted on one side of the first support plate 431 close to the second support plate 432, specifically, the first driving motor 412 is arranged between the first support plate 431 and the second part of the second support plate 432. The working end of the first driving motor 412 penetrates through the first support plate 431 and is connected with the first crank 4141 of the crank linkage structure 414.

[0170] The crank linkage structure 414 comprises the first crank 4141 and the connecting rod 4142, one end of the first crank 4141 is fixedly connected with the working end of the first driving motor 412, the other end of the first crank 4141 is rotatably connected with one end of the connecting rod 4142, and the other end of the connecting rod 4142 is rotatably connected with the push member or the push seat 411.

[0171] Specifically, in the embodiment, the push member is fixedly connected with the push seat 411 by a screw, the first push part 42-1 and / or the second push part 42-2 of the push member are arranged towards the conveying mechanism, one end of the push member away from the conveying mechanism is provided with a connecting part 42-4, the connecting part 42-4 extends away from the conveying mechanism, and the end of the connecting rod 4142 is connected with the connecting part 42-4 and rotatably connected with the connecting part 42-4.

[0172] In some specific embodiments, the first crank 4141 and one end of the connecting rod 4142 are rotatably connected by a bearing, a spring washer and a jam nut, and the other end of the connecting rod 4142 and the connecting part 42-4 are rotatably connected by a bearing, a spring washer and a jam nut.

[0173] In some specific embodiments, the detector 413 comprises a first grating sensor and a second grating sensor mounted on the mounting seat 43, and a baffle mounted on the push seat 411, the baffle cooperating with the first grating sensor and the second grating sensor; the first grating sensor and the second grating sensor are arranged in a direction away from the transmission mechanism and are respectively in communication connection with the power source. Specifically, the first grating sensor, the second sensor and the power source are respectively in communication connection with the control computer board of the dispensing system.

[0174] Specifically, the first grating sensor and the second sensor are arranged in sequence in a direction away from the transmission mechanism, and the baffle is arranged between the first grating sensor and the second grating sensor. During the process that the driving structure 41 drives the push member to move in a direction close to the transmission mechanism, when the first grating sensor detects the baffle, the first driving motor 412 stops running. During the process that the driving structure 41 drives the push member to move in a direction away from the transmission mechanism, when the second grating sensor detects the baffle, the first driving motor 412 stops running.

[0175] Specifically, for the push mechanism at the bag dispensing station, when the first grating sensor detects the baffle, the bag holding mechanism 1 of the packaging bag holding mechanism 1 is opened, and when the second grating sensor detects the baffle, the first push member 421 is spaced apart from the packaging bag holding mechanism 1. For the push mechanism at the top sealing station, when the first grating sensor detects the baffle, the packaging bag holding mechanism 1 is opened, and when the second grating sensor detects the baffle, the second push member 422 is spaced apart from the packaging bag holding mechanism 1. For the push mechanism at the bag dropping station, when the first grating sensor detects the baffle, the packaging bag holding mechanism 1 is opened, and the bag pressing module 14 is opened, and when the second grating sensor detects the baffle, the third push member 423 is spaced apart from the packaging bag holding mechanism 1.

[0176] Preferably, in the embodiment, a sensor base 433 is arranged on the first part of the second support plate 432, the sensor base 433 is mounted on the side of the first part away from the first driving motor 412, and the first grating sensor and the second grating sensor are mounted on the sensor base 433. The baffle is mounted on the end of the guide rod 123 away from the push seat 411, and the end of the baffle extends between the first grating sensor and the second grating sensor.

[0177] In some specific embodiments, the transmission mechanism and the mounting seat 43 are both mounted on the rack.

[0178] The above merely describes preferred embodiments of the present application and is not intended to limit the present application in any form, although the present application has been disclosed as above with preferred embodiments, however, it is not intended to limit the present application, any skilled person in the art can make some changes or modifications to the above-mentioned technical content without departing from the technical solution range of the present application, and equivalent embodiments with equivalent changes can be obtained, the implementation schemes in the above-mentioned embodiments can be further combined or replaced, as long as it does not deviate from the technical solution of the present application, any simple modification, equivalent change and modification made to the above-mentioned embodiments according to the technical essence of the present application still belongs to the scope of the present application.

Claims

1. A pocketing mechanism characterised in that, The package falling mechanism comprises: a support shell; a driving part mounted on the support shell; a bag falling part mounted on the support shell and slidable in the vertical direction, the bag falling part being in transmission connection with the driving part, and the driving part being used to drive the bag falling part to fall and push out the package bag (3) in the package bag holding mechanism (1).

2. The package falling mechanism according to claim 1, wherein the bag falling part comprises: a bag falling frame (531) in sliding cooperation with the support shell, and the bag falling frame (531) being in transmission connection with the driving part; a bag falling rod (54) arranged on the bag falling frame (531) and vertically extending downward from the bag falling frame (531).

3. The package falling mechanism according to claim 2, wherein the bag falling rod (54) comprises: a first part with an upper end connected to the bag falling frame (531); a second part connected to a lower end of the first part, and a projection of the first part in the horizontal direction falling within a projection of the second part in the horizontal direction.

4. A pocket mechanism according to claim 3, wherein The bottom surface of the second part is arranged as a plane; or, a strip-shaped groove (541) is arranged on the bottom surface of the second part, the strip-shaped groove (541) penetrating through the bottom surface of the second part, and the strip-shaped groove (541) being used to limit the top of the package bag (3).

5. A pocket mechanism according to any one of claims 1 to 4, wherein A linear guide rail assembly (55) extending in the vertical direction is arranged on the support shell, and the bag falling part is mounted on a sliding block (552) of the linear guide rail assembly (55).

6. A pocket mechanism according to claim 5, wherein, The driving part comprises a telescopic device arranged between the support shell and the bag falling part; or, the driving part comprises: a driving motor mounted on the support shell; a crank with one end fixed to a working end of the driving motor and the other end provided with a driving head (5323), the driving head (5323) extending in parallel with the working end of the driving motor; a strip-shaped opening (5324) arranged on the bag falling part, the strip-shaped opening (5324) extending in the horizontal direction perpendicular to the working end of the driving motor, and the driving head (5323) being arranged in the strip-shaped opening (5324).

7. The package falling mechanism according to claim 6, wherein the driving head (5323) is arranged as a column body in sliding cooperation with the upper side and / or the lower side of the strip-shaped opening (5324); or, the driving head (5323) is arranged as a roller rollable along the upper side or the lower side of the strip-shaped opening (5324).

8. The package falling mechanism according to any one of claims 1 to 4, wherein a detection device (56) is mounted on the support shell, the detection device (56) being in communication connection with the driving part and being used to acquire the position of the bag falling part.

9. The package falling mechanism according to any one of claims 1 to 4, wherein the support shell comprises: a shell main body (51), the driving part and the bag falling part being mounted on the shell main body (51), and the bottom of the shell main body (51) being provided with an opening corresponding to the bag falling part; a support frame (52) extending in the vertical direction, the upper end of the support frame (52) being connected to the shell main body (51), and the lower end of the support frame (52) being used to be connected to an external structure, and the support frame (52) being used to support the shell main body (51).

10. A dispensing system characterized by, The package falling mechanism according to any one of claims 1 to 9 is mounted.

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