Dispensing system and control method

Abstract

The present invention provides a dispensing system and a control method, the dispensing system comprising: a packaging bag holding mechanism provided with a space for accommodating a packaging bag; and the bag falling mechanism is arranged above the packaging bag keeping mechanism and comprises a driving assembly and a bag falling rod installed on the driving assembly, the bag falling rod corresponds to the space used for containing the packaging bags, and the driving assembly is used for driving the bag falling rod to move in the vertical direction and enter the space used for containing the packaging bags to beat down the packaging bags. The bag falling rod corresponds to the space used for containing the packaging bag, so that in the process that the bag falling rod is driven by the driving assembly to vertically move downwards, the bottom of the bag falling rod exerts downward force on the packaging bag, the packaging bag is smoothly separated from the packaging bag keeping mechanism, and then the packaging bag continues to fall under the action of gravity; the operation stability of the dispensing system is improved; meanwhile, the structure of the packaging bag keeping mechanism does not need to be changed, and the adaptability of the bag falling mechanism is high.

Description

Technical Field

[0001] The invention belongs to the technical field of granule preparation dispensing, and in particular relates to a dispensing system, and also relates to a control method equipped with the dispensing system. Background Art

[0002] Granular preparations refer to items in the shape of granules, such as granular preparations and condiments in medicines. Adjustment refers to the process of quantitatively adding granular products from a larger container to a packaging bag. Before and after the adjustment, a large number of other operations need to be performed, such as the production of packaging bags, the transportation of packaging bags, the sealing and bagging of packaging bags, and a series of other operations. For example, the Chinese utility model patent with application number CN202320129639.4 discloses a new type of granular preparation adjustment device, in which a bag making mechanism, a packaging bag rotating mechanism, an adjustment drive mechanism and a sealing and bagging mechanism are sequentially installed on a fixed frame, and an annular conveying structure is provided in the packaging bag rotating mechanism, 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 mechanism rotates along the annular conveying structure below the adjustment drive mechanism. The working process of the sealing and bag-dropping mechanism is as follows: the bag rack is pulled open by the bag rack opening structure so that the packaging bag with the top opening can be unfolded flatly; the packaging bag is heat-sealed by the heating sealing structure; after the sealing is completed, the bag rack opening component opens the medicine bag rack clamping mechanism, and the medicine bag falls freely.

[0003] Before the packaging bag is dropped into the bag, the granular preparation is already filled into the packaging bag, and after the packaging bag is sealed, the packaging bag is dropped into the bag completely by the gravity of the packaging bag. However, during the use of the above solution, it is easy for the packaging bag to fail to drop 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 likely to occur when the granular preparation contained in the packaging bag is light in weight.

[0004] Therefore, designing a dispensing system that can ensure that the packaging bags can be smoothly put into the bags has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] The present invention provides a dispensing system, wherein a bag dropping mechanism is arranged above a packaging bag holding mechanism, and the bag dropping mechanism can knock down the packaging bags in the packaging bag holding mechanism, thereby solving the problem in the existing dispensing system that the packaging bags are easily attracted by static electricity and / or are stuck by the packaging bag holding mechanism due to deformation and cannot be dropped smoothly.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: A dispensing system includes: a packaging bag holding mechanism, which is provided with a space for accommodating packaging bags; a bag dropping mechanism, which is arranged above the packaging bag holding mechanism and includes a driving component and a bag dropping rod installed on the driving component, the bag dropping rod corresponds to the space for accommodating packaging bags, and the driving component is used to drive the bag dropping rod to move in a vertical direction to enter the space for accommodating packaging bags and knock the packaging bags down.

[0007] Furthermore, the packaging bag holding mechanism is an integrated structure, and the bag dropping rod corresponds to the upper end opening of the space for accommodating the packaging bag; or, the packaging bag holding mechanism includes a fixed body and a movable body, and the movable body can move away from or approach the fixed body. When the movable body moves to the side away from the fixed body to open the packaging bag holding mechanism, the bag dropping rod corresponds to the middle part of the space for accommodating the packaging bag.

[0008] Furthermore, a first curved groove is provided on the fixed body, and a second curved groove corresponding to the first curved groove is provided on the movable body, and a space for accommodating the packaging bag is formed between the first curved groove and the second curved groove; the movable body can be rotatably mounted on the fixed body, or the movable body can be translatedly mounted on the fixed body; preferably, a side of the first curved groove away from the movable body is basically parallel to an extension direction of the bag dropping rod, and when the movable body is rotated toward a side away from the fixed body to open the packaging bag holding mechanism, a side of the second curved groove away from the fixed body is basically parallel to an extension direction of the bag dropping rod; preferably, when the packaging bag holding mechanism is opened, a horizontal distance between a side of the first curved groove away from the movable body and an outer peripheral wall of the bag dropping rod is basically the same as a horizontal distance between a side of the second curved groove away from the fixed body and an outer peripheral wall of the bag dropping rod.

[0009] Furthermore, the projection of the lower end of the bag dropping rod in the horizontal direction falls within the range of the projection of the edge of the space for accommodating the packaging bag in the horizontal direction, and the outer edge of the projection of the lower end of the bag dropping rod in the horizontal direction and the projection of the edge of the space for accommodating the packaging bag in the horizontal direction are close to each other; preferably, the installation position of the bag dropping rod on the driving assembly is adjustable; preferably, the driving assembly drives the bag dropping rod to move downward until the lower end of the bag dropping rod is close to the bottom of the packaging bag holding mechanism.

[0010] Furthermore, the bottom surface of the bag dropping rod is set to a plane; or, a strip groove is set on the bottom surface of the bag dropping rod, and the strip groove runs through the bottom surface of the bag dropping rod and corresponds to the top of the packaging bag; preferably, the groove width of the strip groove gradually increases from top to bottom.

[0011] Furthermore, the packaging bag holding mechanism is provided with a space for accommodating packaging bags, and the driving component is provided with a bag dropping rod corresponding to the space for accommodating packaging bags; or, the packaging bag holding mechanism is provided with multiple spaces for accommodating packaging bags, and the driving component is provided with multiple bag dropping rods corresponding to each space for accommodating packaging bags.

[0012] Furthermore, the driving assembly includes: a bag dropping rack, the bag dropping mechanism also includes a supporting shell, the bag dropping rack is installed on the supporting shell through a linear guide rail assembly extending in the vertical direction, and the bag dropping rod is installed on the bag dropping rack; a driving unit is installed on the supporting shell and is transmission-connected to the bag dropping rack, and is used to drive the bag dropping rack to slide along the linear guide rail assembly; preferably, a detection device is installed on the supporting shell, and the detection device is communication-connected to the driving unit, and is used to obtain the position of the bag dropping rack.

[0013] Further, the driving part includes a retractable device arranged between the supporting shell and the bag dropping rack; or, the driving part includes a driving motor installed on the supporting shell, and the driving motor is connected to the bag dropping rack through a crank slider transmission mechanism; preferably, the crank slider transmission mechanism includes: a crank, one end of which is fixed to the working end of the driving motor, and the other end is provided with a driving head, and the extension direction of the driving head is parallel to the working end of the driving motor; a strip opening, which is arranged on the bag dropping rack, and the strip opening extends in a horizontal direction perpendicular to the working end of the driving motor, and the driving head is arranged in the strip opening.

[0014] Furthermore, the supporting shell includes: a shell body, a driving part and a bag dropping frame are installed on the shell body, and the bottom of the shell body is provided with an opening corresponding to the bag dropping rod; a supporting frame, extending in a vertical direction, the upper end of the supporting frame is connected to the shell body, and the lower end of the supporting frame is used to connect with an external structure; preferably, the installation height and / or installation angle of the shell body on the supporting frame are adjustable; preferably, a transparent window and / or inspection port is provided on the side wall of the shell body.

[0015] The present invention also provides a control method for the above-mentioned adjusting system, including: S1: the transmission mechanism transmits the packaging bag holding mechanism to the bag dropping station; S2: the pushing mechanism at the bag dropping station opens the packaging bag holding mechanism and the bag pressing module; S3: the bag dropping mechanism operates to knock the packaging bag in the packaging bag holding mechanism down; S4: the bag dropping mechanism is reset; S5: the pushing mechanism is reset.

[0016] Preferably, during the adjustment process, the transmission mechanism transmits the packaging bag holding mechanism in sequence to: the bag delivery station, the bag making mechanism introduces the packaging bag into the packaging bag holding mechanism; the adjustment station, the granular preparation adjustment device loads the granular preparation into the packaging bag in a quantitative manner; the top sealing station, the top sealing device closes the top opening of the packaging bag; and the bag dropping station.

[0017] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0018] 1. The present invention arranges a bag-dropping rod corresponding to a space for accommodating packaging bags, so that when the bag-dropping rod moves vertically downward under the drive of a driving assembly, the bottom of the bag-dropping rod applies a downward force to the packaging bag, so that the packaging bag smoothly detaches from the packaging bag holding mechanism, and then continues to fall under the action of gravity, thereby improving the operating stability of the dispensing system; at the same time, there is no need to change the structure of the packaging bag holding mechanism, and the bag-dropping mechanism has high adaptability.

[0019] 2. The present invention can make the shape of the lower end of the bag dropping rod adapt to the internal shape of the space for accommodating the packaging bag by arranging the outer edge of the projection of the lower end of the bag dropping rod in the horizontal direction and the projection of the edge of the space for accommodating the packaging bag in the horizontal direction close to each other. Specifically, the shape of the outer peripheral wall of the lower end of the bag dropping rod is close to the shape of the inner wall of the space for accommodating the packaging bag, and the cross-section of the lower end of the bag dropping rod is smaller than the cross-section of the inner wall of the space for accommodating the packaging bag. Therefore, in the process of the bag dropping rod moving downward into the space for accommodating the packaging bag, it is ensured that the lower end of the bag dropping rod can accurately contact the top of the packaging bag to push the packaging bag to fall.

[0020] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings: Figure 1 It is a structural schematic diagram of a packaging bag holding mechanism in an embodiment of the present invention; Figure 2 A top view of a packaging bag holding mechanism in an embodiment of the present invention; Figure 3 For the embodiment of the present invention Figure 2 Sectional view at AA in the middle; Figure 4 For the embodiment of the present invention Figure 2 Sectional view at the middle BB; Figure 5 is a cross-sectional view of the middle portion of the packaging bag holding mechanism when the packaging bag holding mechanism is opened in an embodiment of the present invention; Figure 6 is a cross-sectional view of the packaging bag holding mechanism at the space for accommodating the packaging bag when the packaging bag holding mechanism is opened in the embodiment of the present invention; Figure 7This is a schematic diagram of the structure of the fixed body in an embodiment of the present invention; Figure 8 It is a structural schematic diagram of the active body in an embodiment of the present invention; Fig. 9 It is a schematic diagram of the structure of the fixed body away from the side of the movable body in the embodiment of the present invention; Fig.10 It is a structural schematic diagram of a bag pressing module in an embodiment of the present invention; Fig.11 It is a structural schematic diagram of the pushing mechanism at the bag dispensing station in an embodiment of the present invention; Fig.12 It is a structural schematic diagram of the first pushing member in an embodiment of the present invention; Fig.13 It is a structural schematic diagram of a pushing mechanism at a top sealing station in an embodiment of the present invention; Fig.14 It is a schematic structural diagram of the second pushing member in an embodiment of the present invention; Fig.15 It is a schematic diagram of the structure of the pushing mechanism at the bag dropping station in an embodiment of the present invention; Fig.16 It is a schematic structural diagram of a third pushing member in an embodiment of the present invention; Fig.17 It is a schematic diagram of the cooperation between the first pushing member and the packaging bag holding mechanism in an embodiment of the present invention; Fig.18 It is a structural schematic diagram of the bag dropping mechanism in an embodiment of the present invention; Fig.19 It is a schematic diagram of the cooperation between the bag dropping mechanism and the packaging bag holding mechanism in an embodiment of the present invention; Fig. 20 It is a bottom view of the cooperation between the bag dropping mechanism and the packaging bag holding mechanism in the embodiment of the present invention; Fig.21 For the embodiment of the present invention Fig. 20 The enlarged view of point A in the middle; Fig. 22 For the embodiment of the present invention Fig. 20 Cross-sectional view at CC.

[0022] Description of the main components in the figure: 1. packaging bag holding mechanism; 10. space for accommodating packaging bags; 11. fixed body; 111. first curved groove; 112. film guide groove; 113. mounting rod; 114. first assembly part; 115. first mounting groove; 116. second mounting groove; 117. avoidance groove; 118. guide hole; 12. movable body; 121. second curved groove; 122. narrow groove; 123. guide rod; 12 31. limit plate; 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. abutment part; 2. second assembly part; 3. packaging bag; 31. side sealing edge; 41. driving structure; 411. pushing 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 bottom Seat; 51, shell body; 511, transparent window; 52, support frame; 521, fixed plate pillar; 522, pillar seat; 523, pillar bottom plate; 531, bag dropping frame; 5321, second drive motor; 5322, second crank; 5323, drive head; 5324, strip opening; 54, bag dropping rod; 541, strip groove; 55, linear guide rail assembly; 551, guide rail; 552, slider; 56, detection device.

[0023] It should be noted that these drawings and text descriptions are not intended to limit the conceptual scope of the present invention in any way. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0025] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense.

[0027] like Figures 1 to 22 As shown, in an embodiment of the present invention, a dispensing system is introduced, and the dispensing system is used to dispense granular preparations.

[0028] The dispensing system includes a bag making mechanism, a packaging bag conveying device, a granule preparation dispensing device, a top sealing device, and a pushing mechanism arranged on one side of the packaging bag conveying device. The packaging bag conveying device includes a conveying mechanism and a packaging bag holding mechanism 1 installed on the conveying mechanism. The control computer board of the dispensing system is used to control the various parts of the dispensing system to cooperate with each other to complete the dispensing work.

[0029] The conveying mechanism is preferably an annular structure, and conveys the packaging bag holding mechanism 1 along the annular shape. The bag making mechanism is arranged below the conveying mechanism, and can prepare the packaging bag 3, and convey the prepared packaging bag 3 to the packaging bag holding mechanism 1, and then the packaging bag 3 is conveyed by the conveying mechanism to move it below the granule preparation dispensing device, and the granule preparation in the granule preparation dispensing device falls quantitatively into the packaging bag 3. The conveying mechanism continues to convey the packaging bag 3, moves it to the top sealing device, and the top sealing device seals the packaging bag 3, and then drops the bag.

[0030] In the existing dispensing system, after the top of the packaging bag 3 is heat-sealed, the packaging bag 3 is completely dropped by gravity, which may cause the packaging bag 3 to fail to smoothly drop out of the packaging bag holding mechanism 1. This is especially likely to happen when the granular preparation contained in the packaging bag 3 is light. For example, the packaging bag 3 is adsorbed on the packaging bag holding mechanism 1 due to static electricity, or the packaging bag 3 is stuck by the packaging bag holding mechanism 1 due to deformation. The packaging bag 3 is stuck by the packaging bag holding mechanism 1 due to deformation, including: during the top sealing process, the top opening of the packaging bag 3 is not flatly opened.

[0031] Embodiment 1 like Figures 18 to 22 As shown, in this embodiment, the dispensing system further includes a bag dropping mechanism, which is arranged above the packaging bag holding mechanism 1 and is used to knock down the packaging bag 3 in the packaging bag holding mechanism 1. Specifically, the packaging bag holding mechanism 1 is provided with a space 10 for accommodating packaging bags, and the space 10 for accommodating packaging bags passes through the packaging bag holding mechanism in the vertical direction. The bag dropping mechanism is arranged above the packaging bag holding mechanism 1, and includes a driving component and a bag dropping rod 54 installed on the driving component, and the bag dropping rod 54 corresponds to the space 10 for accommodating packaging bags. The driving component is used to drive the bag dropping rod 54 to move in the vertical direction, enter the space 10 for accommodating packaging bags, and knock down the packaging bag 3 in the packaging bag holding mechanism 1.

[0032] In this embodiment, by setting the bag drop rod 54 to correspond to the space 10 for accommodating the packaging bag, the bottom of the bag drop rod 54 applies a downward force to the packaging bag 3 when the bag drop rod 54 is driven by the driving assembly to move vertically downward, so that the packaging bag 3 is smoothly separated from the packaging bag holding mechanism 1, and then continues to fall under the action of gravity, thereby improving the operating stability of the dispensing system. At the same time, there is no need to change the structure of the packaging bag holding mechanism 1, and the adaptability of the bag drop mechanism is high.

[0033] In this embodiment, the space 10 for accommodating the packaging bag may be a cylindrical annular cavity, or may be a structure with a gap in the circumferential direction. For example, the space 10 for accommodating the packaging bag may be a space with a C-shaped cross section.

[0034] In some possible embodiments, the packaging bag holding mechanism 1 is an integrated structure, and the space 10 for accommodating the packaging bag is an annular cavity with openings at both ends downward, and the annular cavity extends in the vertical direction. The packaging bag holding mechanism 1 is also provided with a film guide groove 112, which is arranged on one side of the space 10 for accommodating the packaging bag and is connected to the space 10 for accommodating the packaging bag. The extension direction of the film guide groove 112 is consistent with the extension 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.

[0035] In this embodiment, the bag dropping rod 54 of the bag dropping mechanism corresponds to the middle of the upper opening of the space for accommodating the packaging bag 3 .

[0036] In some other possible embodiments, the packaging bag holding mechanism 1 includes 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 a space 10 for accommodating packaging bags is formed between the first curved groove 111 and the second curved groove 121. When the movable body 12 moves to a side away from the fixed body 11 to open the packaging bag holding mechanism 1, the bag drop rod 54 corresponds to the middle of the space 10 for accommodating packaging bags.

[0037] Specifically, when the driving assembly drives the bag drop rod 54 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 packaging bags is two C-shaped structures that are spaced and opposite to each other. When the packaging bag holding mechanism 1 is in an open state, the bag drop rod 54 corresponds to the middle of the space 10 for accommodating packaging bags.

[0038] In some specific embodiments, the movable body 12 is rotatably mounted on the fixed body 11, or the movable body 12 is translationally mounted on the fixed body 11. The movable body 12 is configured with a first position and a second position. When the movable body 12 is in the first position, the movable body is spaced from the fixed body, and the packaging bag holding mechanism is in an open state. When the movable body is in the second position, the movable body abuts against the fixed body, and the packaging bag holding mechanism 1 is in a closed state.

[0039] Preferably, in this embodiment, the projection of the lower end of the bag-dropping rod 54 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 lower end of the bag-dropping rod 54 in the horizontal direction and the projection of the edge of the space 10 for accommodating the packaging bag in the horizontal direction are close to each other. Specifically, the bag-dropping rod 54 is a column extending in the vertical direction, and the cross section of the lower end of the bag-dropping rod 54 is the largest cross section on the bag-dropping rod 54. By setting the projection of the lower end of the bag-dropping rod 54 in the horizontal direction to fall within the range of 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-dropping rod 54 can smoothly enter the space 10 for accommodating the packaging bag.

[0040] By setting the outer edge of the horizontal projection of the lower end of the bag-dropping rod 54 and the horizontal projection of the edge of the space 10 for accommodating the packaging bag close to each other, the shape of the lower end of the bag-dropping rod 54 can be adapted to the inner 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. Therefore, when the bag-dropping rod 54 moves 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.

[0041] In this embodiment, when the packaging bag holding mechanism 1 includes a fixed body 11 and a movable body 12, the "horizontal projection of the edge of the space 10 for accommodating the packaging bag" is the horizontal projection of the edge of the space 10 for accommodating the packaging bag when the packaging bag holding mechanism 1 is in an open state, that is, when the movable body 12 is in the first position.

[0042] Preferably, in this embodiment, the bottom surface of the bag-dropping rod 54 is set to be a plane; or, a strip groove 541 is set on the bottom surface of the bag-dropping rod 54, and the strip groove 541 runs through the bottom surface of the bag-dropping rod 54 and corresponds to the top of the packaging bag 3. Through the above arrangement, it is possible to prevent the packaging bag 3 from 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, thereby improving the working stability of the bag-dropping mechanism. Preferably, the groove width of the strip groove 541 gradually increases from top to bottom. In the process of the bag-dropping rod 54 moving downward, the strip 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 groove 541 can limit the packaging bag 3 in 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, further improving the reliability of the bag-dropping mechanism.

[0043] In this embodiment, the packaging bag holding mechanism 1 is provided with a space 10 for accommodating packaging bags, and a bag dropping rod 54 corresponding to the space 10 for accommodating packaging bags is installed on the driving assembly; or, the packaging bag holding mechanism 1 is provided with multiple spaces 10 for accommodating packaging bags, and multiple bag dropping rods 54 corresponding to each space 10 for accommodating packaging bags are installed on the driving assembly. 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 near the fixed body 11 and the bottom of the movable body 12. The side of the first curved groove 111 away from the movable body 12 is substantially parallel to the extension direction of the bag dropping rod 54, and when the movable body 12 rotates to the side away from the fixed body 11 to open the packaging bag holding mechanism 1, the side of the second curved groove 121 away from the fixed body 11 is substantially parallel to the extension direction of the bag dropping rod 54.

[0044] In this embodiment, the bag dropping rod 54 extends in the vertical direction, and “substantially parallel to the extending direction of the bag dropping rod 54 ” specifically means parallel to the vertical direction, or having an angle within 15° with the vertical direction.

[0045] Specifically, the fixed body 11 is provided with a film guide groove 112 for accommodating the side seal 31 of the packaging bag 3, and the film guide groove 112 is arranged in the middle of the first curved groove 111, that is, 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 formed by being recessed from the middle of the first curved groove 111 in a direction away from the movable body 12. A narrow groove 122 is also arranged in the middle of the second curved groove 121, that is, the narrow groove 122 is arranged on the side of the second curved groove 121 away from the fixed body 11, and the narrow groove 122 is used to accommodate the edge of the packaging bag 3 opposite to the side seal 31.

[0046] In this embodiment, the film guide groove 112 extends in the vertical direction. When the packaging bag holding mechanism 1 is in the closed state, the narrow groove 122 extends obliquely from bottom to top toward the film guide groove 112. After the packaging bag 3 is introduced into the space 10 for accommodating the packaging bag, as the packaging bag 3 moves upward, the narrow groove 122 squeezes the edge of the packaging bag 3 opposite to the side seal 31 to open the opening at the top of the packaging bag 3. When the packaging bag holding mechanism 1 is in the open state, the narrow groove 122 is basically in a vertical state, so that the side seal 31 of the packaging bag 3 and the edge opposite to the side seal 31 are no longer squeezed in the direction from the narrow groove 122 to the film guide groove 112, that is, the movable body 12 no longer applies pressure to the packaging bag 3.

[0047] In this embodiment, when the packaging bag holding mechanism 1 is in the open state, the distance between the bottom of the narrow groove 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 seal 31 of the packaging bag 3 and the edge opposite to the side seal 31, that is, the distance between the bottom of the narrow groove 122 and the bottom of the film guide groove 112 is greater than or equal to the width of the packaging bag 3.

[0048] Preferably, Fig. 22 As shown, when the packaging bag holding mechanism 1 is in the open state, 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 basically 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.

[0049] "The horizontal distance between the side of the first curved groove away from the movable body 12 and the outer peripheral wall of the bag dropping rod 54 is basically 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".

[0050] Specifically, during the bag dropping process, the bag holding mechanism 1 is in an open state, the driving assembly drives the bag dropping rod 54 to move downward, and at least a portion of the bag dropping rod 54 is inserted from top to bottom into the space 10 for accommodating the bag. The narrow groove 122, the film guide groove 112 and the bag dropping rod 54 are substantially parallel, and the horizontal distance between the narrow groove 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.

[0051] In some specific embodiments, the driving assembly includes a bag-dropping frame 531 and a driving unit. Specifically, the bag-dropping mechanism also includes a supporting shell, the bag-dropping frame 531 is mounted on the supporting shell through a linear guide assembly 55 extending in the vertical direction, and the bag-dropping rod 54 is mounted on the bag-dropping frame 531. The driving unit is mounted on the supporting shell, and is in transmission connection with the bag-dropping frame 531, and is used to drive the bag-dropping frame 531 to slide along the linear guide assembly 55.

[0052] In this embodiment, the bag dropping rod 54 is installed on the bag dropping frame 531 and extends vertically downward from the bag dropping frame 531 .

[0053] In some specific embodiments, the bag drop rod 54 includes a first part and a second part, and the first part and the second part of the bag drop rod 54 are connected as a whole. The upper end of the first part of the bag drop rod 54 is connected to the bag drop frame 531, and the upper end of the first part can be installed on the bag drop frame 531 by any installation method such as screws and bolts. The second part of the bag drop 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 range of the projection of the second part in the horizontal direction.

[0054] In this 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 and the projection of the edge of the space 10 for accommodating the packaging bag in the horizontal direction are close to each other, and the strip groove 541 is arranged on the bottom surface of the second part.

[0055] Preferably, the installation position of the bag drop rod 54 on the driving assembly is adjustable. Specifically, a waist-shaped hole is provided on the bag drop rack 531, and a screw passes through the waist-shaped hole on the bag drop rack 531 to connect with the bag drop rod 54, and the bag drop rod 54 is installed on the bag drop rack 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 drop rod 54 according to actual conditions, so that the bag drop rod can smoothly enter the space for accommodating the packaging bag, and avoid collision between the bag drop rod and the packaging bag holding mechanism. In this embodiment, the bag drop rod 54 can be set as an integral part, or the second part can be detachably installed on the first part, and the bag drop rod 54 is spliced. Specifically, in this embodiment, the linear guide assembly 55 includes a guide rail 551 installed on the support shell and a slider 552 installed on the guide rail 551, the guide rail 551 extends in the vertical direction, and the slider 552 slides along the guide rail 551. The bag drop rack 531 is installed on the slider 552.

[0056] In some possible embodiments, the driving unit includes a retractable device disposed between the support shell and the bag drop frame 531. The retractable device may be a hydraulic cylinder mounted on the support shell, and a movable end of the hydraulic cylinder is connected to the bag drop frame 531.

[0057] In some other possible embodiments, the driving unit includes a second driving motor 5321 installed on the supporting shell, and the second driving motor 5321 is connected to the bag dropping rack 531 through a crank slider 552 transmission mechanism.

[0058] In this embodiment, the crank slider 552 transmission mechanism includes a second crank 5322 and a strip opening 5324. Specifically, one end of the second crank 5322 is fixed to the working end of the second drive motor 5321, and the other end of the second crank 5322 is provided with a driving head 5323, and the extension direction of the driving head 5323 is parallel to the working end of the second drive motor 5321. The strip opening 5324 is provided on the bag drop rack 531, and the strip opening 5324 extends in a horizontal direction perpendicular to the working end of the second drive motor 5321, and the driving head 5323 is provided in the strip opening 5324. Thus, when the second drive motor 5321 drives the second crank 5322 to rotate, the driving head drives the bag drop rack 531 to slide along the guide rail 551 of the linear guide assembly 55 through the strip opening.

[0059] In some possible embodiments, the driving head 5323 is configured as a cylinder, and is slidably matched with the upper side and / or the lower side of the strip opening 5324. Preferably, in this embodiment, the driving head 5323 is a cylinder, and the diameter of the cylinder is smaller than the length of the strip opening 5324, and the diameter of the cylinder is equal to the width of the strip opening 5324. When the second crank 5322 rotates in the first direction, the driving head 5323 abuts against the upper side of the strip opening 5324 and slides along the strip opening 5324, driving the bag drop rack 531 to move upward. When the second crank 5322 rotates in the second direction, the driving head 5323 abuts against the lower side of the strip opening 5324 and slides along the strip opening 5324, driving the bag drop rack 531 to move downward.

[0060] In some other possible embodiments, the driving head 5323 is configured as a roller wheel, which can roll along the upper side or the lower side of the strip-shaped opening 5324. In this embodiment, the diameter of the roller wheel is slightly smaller than the width of the strip-shaped opening 5324, and is mounted on the second crank 5322 via a rotating shaft. When the second crank 5322 rotates in the first direction, the roller wheel abuts against the upper side of the strip-shaped opening 5324 and rolls along the upper side of the strip-shaped opening 5324, driving the bag-dropping frame 531 to move upward. When the second crank 5322 rotates in the second direction, the roller wheel abuts against the lower side of the strip-shaped opening 5324 and rolls along the lower side of the strip-shaped opening 5324, driving the bag-dropping frame 531 to move downward.

[0061] In some specific embodiments, the working end of the second drive motor 5321 is key-connected to the second crank 5322. Specifically, the working end of the second drive motor 5321 is the motor shaft of the second drive motor 5321. The motor shaft and the second crank 5322 are fixed by keyways, keys and top screws. The top screws are used to axially position the second crank 5322.

[0062] In some preferred embodiments, the second drive motor 5321 is connected to the second crank 5322 via a reducer. Specifically, the motor shaft of the second drive motor 5321 is connected to the input shaft of the reducer, and the second crank 5322 is keyed to the output shaft of the reducer.

[0063] A detection device 56 is installed on the support shell, and the detection device is communicatively connected with the driving part for obtaining the position of the bag drop rack.

[0064] In some specific embodiments, the detection device 56 includes a photoelectric sensor, which is mounted on a support shell and has a probe for emitting a detection signal. A detected portion is provided on the bag-dropping frame 531, and the detected portion is arranged on the probe signal emitting side of the photoelectric sensor on the moving path of the bag-dropping frame 531, so that after the bag-dropping frame 531 moves to a set position, the detection signal emitted by the photoelectric sensor is reflected by the detected portion and received by the photoelectric sensor to generate a position detection signal. Specifically, two photoelectric sensors are provided, and the two photoelectric sensors are arranged at intervals in the vertical direction. A detected portion is provided on the bag-dropping frame 531, and during the rotation of the second crank 5322 in the first direction, the bag-dropping frame 531 is driven to move upward, and when the upper photoelectric sensor detects the detected portion, the second drive motor 5321 stops running; during the rotation of the second crank 5322 in the second direction, the bag-dropping frame 531 is driven to move downward, and when the lower photoelectric sensor detects the detected portion, the second drive motor 5321 stops running.

[0065] Preferably, the installation height of the photoelectric sensor on the support shell is adjustable. Preferably, the driving assembly drives the bag dropping rod 54 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.

[0066] like Fig.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, the shell body 51 is mounted on the support frame 52, and the driving part 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.

[0067] In some specific embodiments, the shell body 51 includes two first side panels arranged opposite to each other, two second side panels arranged opposite to each other, and a top cover plate. The two first side panels, the two second side panels and the top cover plate are spliced ​​to form the shell body 51 with an open bottom.

[0068] Preferably, the second drive motor 5321 is installed on the first side panel, the linear guide assembly 55 is installed on the second side panel, the linear guide assembly 55 is provided with two groups parallel to each other, and the bag drop rack 531 is fixedly connected to the sliders 552 of the two linear guide assemblies 55.

[0069] In some specific embodiments, a reducer is installed on the outer side of the first side plate, the second drive motor 5321 is installed on the reducer, the output shaft of the reducer extends to the inner side of the first side plate, and the second crank 5322 is installed on the output shaft of the reducer.

[0070] The support frame 52 extends in the vertical direction, the upper end of the support frame 52 is connected to the shell body 51, and the lower end of the support frame 52 is used to connect to an external structure, and the external structure is specifically a frame of the adjustment system.

[0071] Preferably, the installation height and / or installation angle of the shell body 51 on the support frame 52 are adjustable.

[0072] In some specific embodiments, the support frame 52 includes a fixed plate pillar 521 extending in the vertical direction, a pillar seat 522 is installed at the upper end of the fixed plate pillar 521, a pillar bottom plate 523 is installed at the lower end of the fixed plate pillar 521, the shell body 51 is installed on the pillar seat 522, and the support frame 52 is installed on the frame through the pillar bottom plate 523. The installation position of the pillar seat 522 on the fixed plate pillar 521 is adjustable. Optionally, the pillar seat 522 is sleeved on the fixed plate pillar 521, and the relative position between the pillar seat 522 and the fixed plate pillar 521 is locked by a top screw.

[0073] Preferably, the bag drop rack 531, the detection device 56 and the support seat 522 are connected to the same second side plate of the shell body 51. A transparent window 511 and / or an inspection port are provided on the side wall of the shell body 51. In this embodiment, the transparent window 511 is installed on another second side plate of the shell body 51 opposite to the second side plate on which the bag drop rack 531 is installed.

[0074] Preferably, a bending portion is provided at the bottom of the second side panel provided with the transparent window, and the bending portion is screw-connected to the frame.

[0075] In this embodiment, a control method of the dispensing system is also introduced, which includes the following steps: S1: The conveying mechanism conveys the packaging bag holding mechanism 1 to the bag dropping station; S2: The pushing mechanism at the bag dropping station opens the packaging bag holding mechanism 1 and the bag pressing module 14; S3: the bag dropping mechanism operates to knock down the packaging bag 3 in the packaging bag holding mechanism 1; S4: The bag-dropping mechanism is reset; S5: The pushing mechanism is reset.

[0076] In the embodiment of the present invention, in order to ensure the working reliability of the pushing mechanism, the top sealing station and the bag dropping station are independently set. After the top sealing is completed, the pushing mechanism at the top sealing station is reset, and the packaging bag holding mechanism 1 is reset. In the process of the transmission mechanism transporting the packaging bag holding mechanism 1 to the bag dropping station, the packaging bag 3 after the top sealing is completed will be squeezed by the fixed body 11 and the movable body 12 and produce a large deformation. By setting the bag dropping module, the reliability of bag dropping can be guaranteed. Specifically, the transmission mechanism is equipped with a bag delivery station, an adjustment station, a top sealing station and a bag dropping station. The bag delivery station, the top sealing station and the bag dropping station are respectively provided with a pushing mechanism. The pushing mechanisms provided at the bag delivery station, the top sealing station and the bag dropping station are respectively used to open the bag pressing module 14, open the packaging bag holding mechanism 1, and open the bag pressing module 14 and the packaging bag holding mechanism 1 at the same time.

[0077] In this embodiment, “opening the packaging bag holding mechanism 1” specifically refers to pushing the movable body 12 of the packaging bag holding mechanism 1 to rotate or translate the movable body 12 to a side away from the fixed body 11. “Opening the bag pressing module 14” specifically refers to releasing the pressing of the bag pressing module 14 on the packaging bag 3, so that the packaging bag 3 can enter the space 10 for accommodating packaging bags, or, so that the packaging bag 3 can escape from the space 10 for accommodating packaging bags.

[0078] In this embodiment, “opening the bag pressing module 14 and the packaging bag holding mechanism 1 at the same time” specifically means that the pushing mechanism can simultaneously keep the bag pressing module 14 and the packaging bag holding mechanism 1 in the open state.

[0079] In this embodiment, the working process of the adjustment system is as follows: first, the transmission mechanism transmits the packaging bag holding mechanism 1 to the bag delivery station, the pushing mechanism at the bag delivery station operates, and the first pushing member 421 feeds in the direction close to the transmission mechanism, pushing the bag pressing block 142 of the bag pressing module 14 to open it. After the packaging bag 3 made by the bag making mechanism enters the packaging bag holding mechanism 1, the pushing mechanism at the bag delivery station drives the first pushing member 421 to retreat in the direction away from the transmission mechanism, and the packaging bag 3 is fixed in the packaging bag 3 holding frame mechanism by the bag pressing block 142 of the bag pressing module 14.

[0080] Then, the conveying mechanism conveys the packaging bag 3 and moves it to the adjusting station, so that it moves to the bottom of the granular preparation adjusting device. The granular preparation in the granular preparation adjusting device falls into the packaging bag 3 in a quantitative manner. After the adjustment is completed, the conveying mechanism conveys 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 feeds in the direction close to the conveying mechanism, pushing the guide rod 123 to open the packaging bag holding mechanism 1, and the top sealing device seals the top opening of the packaging bag 3. After the sealing is completed, the pushing mechanism at the top sealing station drives the second pushing member 422 to retreat in the direction away from the conveying mechanism.

[0081] Finally, the conveying mechanism conveys 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 piece 423 feeds in the direction close to the conveying mechanism, pushing the guide rod 123 to open the packaging bag holding mechanism 1, and at the same time pushing the bag pressing block 142 of the bag pressing module 14 to open it. The bag dropping mechanism operates, and the packaging bag 3 in the packaging bag holding mechanism 1 is knocked down, and the packaging bag 3 falls into the medicine box, and the bag dropping mechanism is reset. After the bag dropping mechanism is reset, the pushing mechanism at the bag dropping station drives the third pushing piece 423 to retreat in the direction away from the conveying mechanism.

[0082] Embodiment 2 like Figures 1 to 10 As shown, this embodiment is used to further discuss the packaging bag holding mechanism 1 in the above-mentioned embodiment 1. 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 matched with the fixed body 11 through the connecting structure, and the rotation axis of the movable body 12 is arranged near the bottom of the fixed body 11 and the movable body 12.

[0083] The connection structure includes two connection plates 13, which are respectively arranged on the left and right sides of the packaging bag holding mechanism 1. The first end of the connection plate 13 is fixedly connected to the movable body 12, and the second end of the connection plate 13 is rotatably matched with the bottom of the fixed body 11.

[0084] A mounting hole is provided at the first end of the connecting plate 13, and the connecting plate 13 is connected to the movable body 12 via a connecting member that passes through the mounting hole and is fixed on the movable body 12. The connecting member may be a screw or a bolt. A positioning hole is provided on one side of the mounting hole, and a positioning protrusion 131 corresponding to the positioning hole is provided on the side wall of the movable body 12, and the positioning protrusion 131 is inserted into the positioning hole.

[0085] In this embodiment, the second end of the connecting plate 13 is mounted on the fixed body 11 through a flange bearing.

[0086] In some specific embodiments, a through hole is provided at the second end of the connecting plate 13, a flange bearing is provided in the through hole, and the flange bearing is mounted on the connecting plate 13 by screws and / or bolts. A shaft sleeve is mounted on the fixed body 11 by screws and / or bolts, and the flange bearing sleeve is mounted on the shaft sleeve. A reset structure is also provided between the fixed body 11 and the movable body 12, and the reset structure is used to drive the movable body 12 to rotate toward a side close to the fixed body 11.

[0087] Specifically, Figure 3 and Figure 5 As shown, the reset structure includes a guide rod 123 and a compression spring 124 .

[0088] In some preferred embodiments, a first mounting groove 115 is provided on one side of the fixed body 11 away from the movable body 12, one end of the guide rod 123 is fixedly connected to the movable body 12, and the other end passes through the fixed body 11 and extends into the first mounting groove 115; a limiting piece 1231 is provided on one end of the guide rod 123 away from the movable body 12, and a compression spring 124 is sleeved on the guide rod 123, and the two ends of the compression spring 124 are respectively in contact with the limiting piece 1231 and the 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 holding mechanism 1 and avoid accidental touch.

[0089] The guide rod 123 is configured to be in an arc shape. A guide hole 118 adapted to the guide rod 123 is configured on the fixed body 11 . The center of the guide rod 123 is coaxial with the rotation axis of the movable body 12 .

[0090] In some specific embodiments, at least one first curved groove 111 is provided on the fixed body 11, and at least one second curved groove 121 is provided on the movable body 12. The first curved groove 111 and the second curved groove 121 are arranged opposite to each other, and a space 10 for accommodating a packaging bag is formed between the first curved groove 111 and the second curved groove 121. The number of the first curved groove 111 and the second curved groove 121 is the same, and the first curved groove 111 and the second curved groove 121 correspond to each other one by one. In some possible embodiments, one first curved groove 111 and one second curved groove 121 may be provided respectively, and then the packaging bag holding mechanism 1 can accommodate one packaging bag 3; or two first curved grooves 111 and two second curved grooves 121 are provided respectively, and then the packaging bag holding mechanism 1 can accommodate two packaging bags 3 at the same time; or three first curved grooves 111 and three second curved grooves 121 are provided respectively, and then the packaging bag holding mechanism 1 can accommodate three packaging bags 3 at the same time.

[0091] When a plurality of first curved grooves 111 and second curved grooves 121 are provided, the plurality of first curved grooves 111 are arranged at intervals in the horizontal direction on the fixed body 11 , and the plurality of second curved grooves 121 are arranged at intervals in the horizontal direction on the movable body 12 .

[0092] 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 rotatably cooperates with the base 141. The elastic member is arranged between the bag pressing block 142 and the base 141. A avoidance opening is arranged on the groove wall of the film guide groove 112 on the side close to the bag pressing module 14. The elastic member is used to force 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 presses the side seal 31 of the packaging bag 3 against the groove wall of the film guide groove 112 away from the bag pressing module 14.

[0093] In this embodiment, the bag pressing module 14 is configured as an independent module. Specifically, a rotating shaft is provided on the base 141, the bag pressing block 142 is mounted 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.

[0094] A second mounting groove 116 is provided on a side of the fixed body 11 away from the movable body 12. The second mounting groove 116 is provided on a side of the film guide groove 112, and the second mounting groove 116 is connected to the film guide groove 112 through an avoidance opening. The base 141 is installed on the bottom of the second mounting groove 116 by screws. The base 141 is provided with an axle seat extending in a direction away from the movable body 12, and the axle 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 provided between the two ear plates 1411, and the two ends of the bag pressing block 142 are respectively fitted with the two ear plates 1411. The bag pressing block includes a squeezing portion 1421 extending toward a side close to the film guide groove 112, and an abutting portion 1422 extending toward a side away from the film guide groove 112.

[0095] In some specific embodiments, a mounting rod 113 is provided on the fixed body 11, the mounting rod 113 penetrates the movable body 12, a first assembly part 114 is provided at one end of the mounting rod 113 away from the fixed body 11, and the first assembly part 114 is spaced apart from a side of the movable body 12 away from the fixed body 11. A second assembly part 2 is installed on the transmission mechanism, and the first assembly part 114 and the second assembly part 2 are sleeved and matched.

[0096] Preferably, Figure 1As shown, two spaces 10 for accommodating packaging bags are formed by splicing between the fixed body and the movable body, and a film guide groove 112 is respectively provided on the fixed body 11 corresponding to the two spaces for accommodating packaging bags, and a second mounting groove 116 is provided between two adjacent film guide grooves 112, and the two sides of the second mounting groove 116 are respectively connected with the two film guide grooves 112 through avoidance openings. A base 141 is provided on the bottom of the groove in the second mounting groove 116, and an axle seat is respectively provided at both ends of the base 141, and 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 extend to the middle of the second mounting groove 116. In this embodiment, the bag pressing block 142 is 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.

[0097] In this embodiment, two bag dropping rods 54 are disposed on the bag dropping rack 531 , and the two bag dropping rods 54 are disposed in one-to-one correspondence with the two spaces 10 for accommodating packaging bags between the fixed body 11 and the movable body 12 .

[0098] Embodiment 3 like Figures 11 to 17 As shown, this embodiment is used to further discuss the pushing mechanism in the above-mentioned embodiment 1.

[0099] The pushing mechanism includes a driving structure 41 and a pushing piece. 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 toward the transmission mechanism. The pushing piece is installed at 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 to push the bag pressing module 14 to open it.

[0100] The pushing member includes a first pushing member 421, a second pushing member 422 and a third pushing member 423, which are respectively mounted on the driving end of the driving structure 41 at the bag awarding 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 the pushing mechanism also includes a mounting seat 43, a guide assembly 415 is arranged between the pushing seat 411 and the mounting seat 43, the pushing seat 411 is mounted on the mounting seat 43 through the guide assembly 415, and the pushing member is mounted on the pushing seat 411. The power source is mounted on the mounting seat 43, and is in transmission connection with the pushing member and / or the pushing seat 411. The detector 413 is in communication connection with the power source, and is used to detect the position of the pushing seat 411. The first pushing member 421 includes a second pushing portion 42-2 for pushing the bag pressing module 14, the second pushing member 422 includes a first pushing portion 42-1 for pushing the movable body 12, and the third pushing member 423 includes a first pushing portion 42-1 for pushing the movable body 12 and a second pushing portion 42-2 for pushing the bag pressing module 14.

[0101] In some specific embodiments, the movable body 12 is movably installed on a side of the fixed body 11 close to the transmission mechanism, the first pushing portion 42 - 1 corresponds to the guide rod 123 , and the second pushing portion 42 - 2 corresponds to the bag pressing block 142 .

[0102] In this 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 guide grooves 112 corresponding to and communicating with the two spaces 10 for accommodating packaging bags. The bag pressing module 14 includes two groups of bag pressing blocks 142 corresponding to the two spaces 10 for accommodating packaging bags, and the two groups of bag pressing blocks 142 are arranged in sequence along the transmission direction of the transmission mechanism, and correspond to the two film guide grooves 112 respectively.

[0103] Specifically, “a group of bag pressing blocks 142” may include only one bag pressing block 142, or may include a plurality of bag pressing blocks 142 arranged at intervals along the length direction of the film guiding groove 112. “A group of bag pressing blocks 142” is pushed by a second pushing portion 42-2.

[0104] In this embodiment, one extrusion portion 1421 may be provided on one bag pressing block 142, or multiple extrusion portions 1421 may be provided which are arranged at intervals along the length direction of the film guide groove 112. When multiple extrusion portions 1421 are provided on one bag pressing block 142, the multiple extrusion portions 1421 simultaneously extrude the side seal 31 of the packaging bag 3.

[0105] The pushing mechanism at the bag delivering station is used to sequentially open the two groups of bag pressing blocks 142 corresponding to the two film guiding grooves. In some specific embodiments, the first pushing member 421 is provided with two second pushing parts 42-2 respectively used to push the two groups of bag pressing blocks 142, and the two second pushing parts 42-2 respectively used to push the two groups of bag pressing blocks 142 are arranged sequentially in the opposite direction of the transmission direction of the transmission mechanism. Specifically, in the process of the driving structure of the pushing mechanism at the bag delivering station driving the first pushing member 421 to push the bag pressing module 14 on the packaging bag holding mechanism 1, a second pushing part 42-2 on the first pushing member pushes a group of bag pressing blocks 142 to rotate, and another second pushing part 42-2 on the first pushing member is misaligned with another group of bag pressing blocks 142.

[0106] Preferably, at least the first pushing member 421 is provided with a groove-shaped positioning portion 42 - 3 , and the groove opening of the groove-shaped positioning portion 42 - 3 is sleeved and positioned with the outer side wall of the film guiding groove 112 .

[0107] In some specific embodiments, two groups of bag pressing blocks 142 are arranged between the two film guide grooves 112. Specifically, the second mounting groove 116 is arranged between the two film guide grooves 112. Avoidance ports are arranged on the groove walls opposite to each other of the two film guide grooves 112. The second mounting groove 116 is connected to the two film guide grooves 112 through the two avoidance ports, respectively. The two groups of bag pressing blocks 142 are respectively installed at the two avoidance ports through rotating shafts. In this embodiment, "a group of bag pressing blocks 142" includes a bag pressing block 142, a base 141 is arranged on the bottom of the groove in the second mounting groove 116, and an axle seat is respectively arranged at both ends of the base 141. 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 extend to the middle of the second mounting groove 116.

[0108] like Fig.11 , Fig.12 and Fig.17 As shown, in this embodiment, the groove-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 body 11 is also provided with an avoidance groove 117, which is arranged on a side of the film guide groove 112 away from the second mounting groove 116, and the groove-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 avoidance groove 117 and the second mounting groove 116.

[0109] The first pushing member 421 is provided with two second pushing parts 42 - 2 for pushing the two groups of bag pressing blocks 142 respectively. One second pushing part 42 - 2 of the first pushing member 421 corresponds to the abutting part 1422 of one group of bag pressing blocks 142, and the other second pushing part 42 - 2 of the first pushing member 421 corresponds to the avoidance groove 117.

[0110] Specifically, Fig.17 As shown, on the first pushing member 421, the groove-shaped positioning portion 42-3 extends from between the two second pushing portions 42-2 toward the direction close to the transmission mechanism. When the left bag pressing block 142 needs to be pushed, the groove-shaped positioning portion 42-3 is sleeved on the outer side wall of the left film guide groove 112, and the second pushing portion 42-2 located on the right side pushes the left bag pressing block 142 to rotate away from the left film guide groove 112. When the right bag pressing block 142 needs to be pushed, the groove-shaped positioning portion 42-3 is sleeved on the outer side wall of the right film guide groove 112, and the second pushing portion 42-2 located on the left side pushes the right bag pressing block 142 to rotate away from the right film guide groove 112.

[0111] like Fig.13 and Fig.14 As shown, in this embodiment, the second pushing member 422 of the pushing mechanism at the top-sealing station has only one first pushing portion 42-1, and the first pushing portion 42-1 is used to push the guide rod 123 away from one end of the movable body 12, so that the movable body 12 rotates in a direction away from the fixed body 11, so that the packaging bag holding mechanism 1 is opened. As a result, the top of the packaging bag 3 extends to a flat state, which is convenient for the top-sealing device to seal it.

[0112] like Fig.15 and Fig.16 As shown, in this 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 transmission direction of the transmission mechanism, and a first pushing portion 42-1 corresponding to the end of the guide rod 123 away from the movable 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.

[0113] In this embodiment, the first mounting groove 115 is disposed above the second mounting groove 116 and is close to the second mounting groove 116 .

[0114] In some possible embodiments, the power source includes a first drive motor 412 , which is mounted on a mounting seat 43 and is transmission-connected to the push piece and / or the push seat 411 via a crank-connecting rod structure 414 .

[0115] In some specific embodiments, the mounting seat 43 includes 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 includes a guide seat 4151 and a guide column 4152 arranged on the first support plate 431, the guide seat 4151 is provided with a guide hole 118, the guide column 4152 is inserted into the guide hole 118 and slides with the guide seat 4151. The guide seat 4151 is provided with two spaced apart guide columns 4152, and the two guide columns 4152 slide with the two guide seats 4151. The push seat 411 is installed at one end of the two guide rods 123 close to the transmission mechanism.

[0116] The second support plate 432 is fixedly connected to the first support plate 431. The second support plate 432 is L-shaped, including a first portion perpendicular to the first support plate 431, and a second portion parallel to the first support plate 431. An end of the first portion away from the second portion is fixedly connected to the first support plate 431 by a screw.

[0117] The guide assembly 415 and the crank-connecting rod structure 414 are installed on the side of the first support plate 431 away from the second support plate 432, and the first drive motor 412 is installed on the side of the first support plate 431 close to the second support plate 432. Specifically, the first drive 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 drive motor 412 passes through the first support plate 431 and is connected to the first crank 4141 of the crank-connecting rod structure 414.

[0118] The crank-connecting rod structure 414 includes a first crank 4141 and a connecting rod 4142, one end of the first crank 4141 is fixedly connected to the working end of the first drive motor 412, the other end of the first crank 4141 is rotationally matched with one end of the connecting rod 4142, and the other end of the connecting rod 4142 is rotationally matched with the pushing member or the pushing seat 411. Specifically, the pushing member is fixedly connected to the pushing seat 411 by screws, the first pushing portion 42-1 and / or the second pushing portion 42-2 of the pushing member are arranged toward the transmission mechanism, the end of the pushing member away from the transmission mechanism is provided with a connecting portion 42-4, the connecting portion 42-4 extends in a direction away from the transmission mechanism, and the end of the connecting rod 4142 is connected to the connecting portion 42-4 and rotationally matched with the connecting portion 42-4.

[0119] In some specific embodiments, the first crank 4141 and one end of the connecting rod 4142, and the other end of the connecting rod 4142 and the connecting portion 42-4 are rotationally matched through bearings, spring washers and plug screws.

[0120] In some specific embodiments, the detector 413 includes a first grating sensor and a second grating sensor mounted on a mounting seat, and a baffle mounted on a push seat 411, the baffle cooperates with the first grating sensor and the second grating sensor; the first grating sensor and the second grating sensor are arranged at intervals in a direction away from the transmission mechanism, and are respectively connected to the power source for communication. Specifically, the first grating sensor, the second grating sensor and the power source are respectively connected to the control computer board of the adjustment system for communication.

[0121] Specifically, the first grating sensor and the second sensor are sequentially arranged in a direction away from the transmission mechanism, and the baffle is arranged between the first grating sensor and the second grating sensor. When the first grating sensor detects the baffle during the process of the driving structure 41 driving the pushing member to move in a direction close to the transmission mechanism, the first driving motor 412 stops running. When the second grating sensor detects the baffle during the process of the driving structure 41 driving the pushing member to move in a direction away from the transmission mechanism, the first driving motor 412 stops running. Specifically, for the pushing mechanism at the bag delivery station, when the first grating sensor detects the baffle, the bag pressing module 14 of the packaging bag holding mechanism 1 is opened, and when the second grating sensor detects the baffle, the first pushing member 421 is spaced from the packaging bag holding mechanism 1. For the pushing 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 pushing member 422 is spaced from the packaging bag holding mechanism 1. For the pushing 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 at the same time; when the second grating sensor detects the baffle, the third pushing member 423 is spaced apart from the packaging bag holding mechanism 1.

[0122] Preferably, in this embodiment, a sensor base 433 is provided on the first portion of the second support plate 432, the sensor base 433 is mounted on a side of the first portion away from the first drive motor 412, and the first grating sensor and the second grating sensor are mounted on the sensor base 433. The baffle is mounted on an 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.

[0123] In some specific embodiments, the transmission mechanism and the mounting seat 43 are both mounted on the frame.

[0124] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as above in preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the present invention can make some changes or modifications to equivalent embodiments of equivalent changes using the above-mentioned technical contents without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A dispensing system, characterized in that: include: A packaging bag holding mechanism (1) is provided with a space (10) for accommodating the packaging bag; The bag dropping mechanism is arranged above the packaging bag holding mechanism (1), and comprises a driving assembly and a bag dropping rod (54) mounted on the driving assembly, wherein the bag dropping rod (54) corresponds to a space (10) for accommodating packaging bags, and the driving assembly is used to drive the bag dropping rod (54) to move in a vertical direction, enter the space (10) for accommodating packaging bags, and knock the packaging bags (3) down.

2. The dispensing system according to claim 1, characterized in that: The packaging bag holding mechanism (1) is an integrated structure, and the bag dropping rod (54) corresponds to the upper end opening of the space for accommodating the packaging bag (3); Alternatively, the packaging bag holding mechanism (1) includes a fixed body (11) and a movable body (12), and the movable body (12) can move away from or approach the fixed body (11). When the movable body (12) moves to a side away from the fixed body (11) to open the packaging bag holding mechanism (1), the bag dropping rod (54) corresponds to the middle of the space (10) for accommodating the packaging bag.

3. The dispensing system according to claim 2, characterized in that: The fixed body (11) is provided with a first curved groove (111), the movable body (12) is provided with a second curved groove (121) corresponding to the first curved groove (111), and a space (10) for accommodating a packaging bag is formed between the first curved groove (111) and the second curved groove (121); the movable body (12) is rotatably mounted on the fixed body (11), or the movable body (12) is translationally mounted on the fixed body (11); The side of the first curved groove (111) away from the movable body (12) is substantially parallel to the extension direction of the bag dropping rod (54); when the movable body (12) rotates toward the side away from the fixed body (11) so that the packaging bag holding mechanism (1) is opened, the side of the second curved groove (121) away from the fixed body (11) is substantially parallel to the extension direction of the bag dropping rod (54).

4. The dispensing system according to any one of claims 1 to 3, characterized in that: The projection of the lower end of the bag dropping rod (54) 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 lower end of the bag dropping rod (54) in the horizontal direction and the projection of the edge of the space (10) for accommodating the packaging bag in the horizontal direction are close to each other; The driving assembly drives the bag dropping rod (54) 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).

5. The dispensing system according to any one of claims 1 to 3, characterized in that: The bottom surface of the bag dropping rod (54) is set to be a plane; or, a strip groove (541) is set on the bottom surface of the bag dropping rod (54), and the strip groove (541) passes through the bottom surface of the bag dropping rod (54) and corresponds to the top of the packaging bag (3).

6. The dispensing system according to any one of claims 1 to 3, characterized in that: The packaging bag holding mechanism (1) is provided with a space (10) for accommodating the packaging bag, and the driving assembly is provided with a bag dropping rod (54) corresponding to the space (10) for accommodating the packaging bag; Alternatively, the packaging bag holding mechanism (1) is provided with a plurality of spaces (10) for accommodating packaging bags, and the driving assembly is provided with a plurality of bag dropping rods (54) corresponding one to one to each of the spaces (10) for accommodating packaging bags.

7. The dispensing system according to any one of claims 1 to 3, characterized in that: The drive components include: The bag dropping rack (531) further comprises a support shell, the bag dropping rack (531) is mounted on the support shell via a linear guide assembly (55) extending in a vertical direction, and the bag dropping rod (54) is mounted on the bag dropping rack (531); A driving unit, mounted on the supporting shell, is drivingly connected to the bag dropping frame (531) and is used to drive the bag dropping frame (531) to slide along the linear guide assembly (55); A detection device (56) is installed on the supporting shell, and the detection device (56) is communicatively connected with the driving part and is used to obtain the position of the bag dropping rack (531).

8. The dispensing system according to claim 7, characterized in that: The driving part comprises a retractable device arranged between the supporting shell and the bag dropping frame (531); or the driving part comprises a driving motor installed on the supporting shell, and the driving motor is connected to the bag dropping frame (531) through a crank slider (552) transmission mechanism; The crank slider (552) transmission mechanism comprises: A crank, one end of which is fixed to the working end of the drive motor, and the other end of which is provided with a drive head (5323), wherein the extension direction of the drive head (5323) is parallel to the working end of the drive motor; The strip-shaped opening (5324) is arranged on the bag dropping frame (531), and the strip-shaped opening (5324) extends in a horizontal direction perpendicular to the working end of the driving motor, and the driving head (5323) is arranged in the strip-shaped opening (5324).

9. The dispensing system according to claim 8, characterized in that: The support shell includes: The shell body (51), the driving part and the bag dropping frame (531) are installed on the shell body (51), and the bottom of the shell body (51) is provided with an opening corresponding to the bag dropping rod (54); The support frame (52) extends in a vertical direction, the upper end of the support frame (52) is connected to the shell body (51), and the lower end of the support frame (52) is used to connect to an external structure.

10. A control method for a dispensing system according to any one of claims 1 to 9, characterized in that: include: S1: The transport mechanism transports the packaging bag holding mechanism (1) to the bag dropping station; S2: The pushing mechanism at the bag dropping station opens the packaging bag holding mechanism (1) and the bag pressing module (14); S3: the bag dropping mechanism operates to knock the packaging bag (3) in the packaging bag holding mechanism (1) down; S4: The bag-dropping mechanism is reset; S5: The pushing mechanism is reset.

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