A Chinese medicine granule bagging machine

Abstract

An embodiment of the present invention discloses a Chinese medicine granule bagging machine, which includes a film feeding and bag making mechanism, a bottom sealing mechanism, a side sealing mechanism, a carrying tray, a top sealing displacement mechanism and a discharging mechanism; the film feeding and bag making mechanism includes a bag forming frame, a shaping table and a bag top sheet; the side sealing mechanism is used for sealing the side edges of the packaging film; the bottom sealing mechanism is used for sealing the bottom edge of the packaging film; the carrying tray is used for carrying the sealed packaging bags; the top sealing displacement mechanism includes a top sealing machine frame, a lateral displacement mechanism for moving the top sealing machine frame, a sealing driving mechanism, a left sealing component and a right sealing component; the sealing driving mechanism is used for driving the left sealing component and the right sealing component to approach or move away from each other; the discharging mechanism is arranged below the top sealing displacement mechanism and is used for sending out the packaging bags. By adopting the present invention, each step of bag forming and heat sealing can be automatically completed, the work is stable, and the bag making size is accurate.

Description

Technical Field

[0001] The present invention relates to a medicine dispensing system, and more particularly to a Chinese medicine granule bagging machine. Background Art

[0002] Currently, for the system of automatic dispensing of Chinese medicine, prefabricated medicine boxes are mainly used as containers because the shape of the medicine boxes is stable and the dispensing process is relatively convenient. However, the medicine boxes take up a large amount of space, are not easy to carry, and have a relatively high cost. Another method is to use medicine bags for dispensing. However, the shape of the medicine bags is not fixed, which brings great difficulties to automatic dispensing. Some machines adopt the method of on-site bag making, but their structure follows the existing method of making food packaging bags, and the film feeding uses rollers. The rollers are prone to slipping when the resistance of the packaging film changes, and it is also easy to cause unbalanced feeding, which cannot meet the use requirements of medicine bags. Summary of the Invention

[0003] An embodiment of the present invention provides a Chinese medicine granule bagging machine to solve the technical problem that the existing medicine dispensing system cannot make packaging bags for freshly prepared Chinese medicine granules. The machine can automatically complete each step of bag forming and heat sealing, with stable operation and precise bag making dimensions.

[0004] To solve the above technical problem, an embodiment of the present invention provides a Chinese medicine granule bagging machine, which includes a film feeding and bag making mechanism, a bottom sealing mechanism, a side sealing mechanism, a carrying tray, a top sealing displacement mechanism, and a discharging mechanism; the film feeding and bag making mechanism includes a bag forming frame, a shaping table, and a top bag piece. The shaping table is sleeved outside the bag forming frame, and the top bag piece is arranged at the lower end of the bag forming frame and can move up and down to drive the packaging film for bottom sealing to move downward; the side sealing mechanism is used for side sealing of the packaging film; the bottom sealing mechanism is used for bottom sealing of the packaging film; the carrying tray is used for carrying the sealed packaging bags; the top sealing displacement mechanism includes a top sealing frame, a lateral displacement mechanism for moving the top sealing frame, a sealing driving mechanism, a left sealing component, and a right sealing component; the sealing driving mechanism, the left sealing component, and the right sealing component are arranged on the top sealing frame; the sealing driving mechanism is used to drive the left sealing component and the right sealing component to move closer to or away from each other; the discharging mechanism is arranged below the top sealing displacement mechanism and is used to send out the packaging bags.

[0005] As an improvement of the above solution, the film feeding and bag making mechanism further includes a driving device and a film feeding device. The film feeding device includes a lead screw, a smooth rod, a slider, a lead screw mounting member, and a sliding sleeve; the sliding sleeve is fixedly arranged on the lead screw mounting member, the lead screw is rotatably arranged on the lead screw mounting member, the slider is arranged on the lead screw and can move up and down driven by the lead screw; the smooth rod is sleeved in the sliding sleeve, one end of which is fixedly connected to the slider, and the other end is fixedly connected to the top bag piece; the driving device is used to drive the lead screw to rotate, and drive the top bag piece to move up and down through the lead screw.

[0006] As an improvement to the above solution, the top pocket piece includes a bottom top pocket piece, side top pocket pieces, and a shaping piece; the bottom top pocket piece has a flat bottom edge that is horizontal; the side top pocket pieces are inverted triangles; the shaping piece is disposed above the front and rear of the bottom top pocket piece.

[0007] As an improvement to the above solution, the bottom top pocket piece is disposed between the left and right side top pocket pieces, and the lower tips of the side top pocket pieces are lower than the flat bottom edge of the bottom top pocket piece.

[0008] As an improvement to the above solution, the side top pocket pieces are gradually inclined outward from top to bottom; a shaping cavity is formed between the bottom top pocket piece and the shaping piece.

[0009] As an improvement to the above solution, the bottom sealing mechanism includes a frame, a slide bar, a linkage slider, a left slider, a right slider, a connecting rod, a left heat sealing block, a right heat sealing block, a first gear, a second gear, a first driving rod, a second driving rod, and a bottom sealing motor;

[0010] The bottom sealing motor is connected to the first gear, and the surface of the first gear is connected to the linkage slider through the first driving rod;

[0011] The second gear meshes with the first gear, and the surface of the second gear is connected to the left slider through the second driving rod;

[0012] The slide bar is fixed to the frame, and the linkage slider, the left slider, and the right slider are sleeved on the slide bar and can slide along the slide bar;

[0013] The linkage slider is fixedly connected to the right slider through the connecting rod;

[0014] The left heat sealing block is disposed on the left slider, the right heat sealing block is disposed on the right slider, and the left heat sealing block and the right heat sealing block are disposed opposite to each other.

[0015] As an improvement to the above solution, scissors are further provided at the bottoms of the left slider and the right slider.

[0016] As an improvement to the above solution, a side sealing seat is further provided on the left slider, and a side heat sealing block is provided on the side sealing seat.

[0017] As an improvement to the above solution, the left sealing assembly and the right sealing assembly have the same structure, including a sliding plate, a heating strip, and a pressing plate; the pressing plate of the right sealing assembly is connected to a guiding frame, and the guiding frame includes a side guiding plate and a front guiding plate; the pressing plate of the left sealing assembly is connected to a rear guiding plate;

[0018] The lateral displacement mechanism includes a lateral drive motor, a first swing arm, a lateral guide rail, and a lateral slider; the first swing arm is arranged on the lateral drive motor, and the lateral slider is sleeved on the lateral guide rail; the lateral slider is further provided with a first convex block, the end of the first swing arm is provided with a slot, and the first convex block is located in the slot.

[0019] As an improvement of the above solution, the sealing drive mechanism includes a sealing motor, a second swing arm, and a linkage block; the linkage block is hinged to the top sealing frame, the linkage block is provided with a sliding groove, the second swing arm is connected to the sealing motor, and its end is provided with a second convex block, and the second convex block is arranged in the sliding groove; the linkage block is connected to the corresponding pressing plate through the corresponding connecting rod.

[0020] Implementing the embodiments of the present invention has the following beneficial effects:

[0021] During the bag-making and packaging process, the film feeding and bag-making mechanism includes a bag forming frame, a shaping table, and a bag top sheet. The bag top sheet cooperates with the bottom sealing mechanism arranged below it. When the bottom sealing mechanism finishes sealing, the bag top sheet moves downward to push the packaging bag downward by a predetermined distance. Compared with the traditional roller film feeding method, this mechanism can avoid the slippage between the roller and the packaging film, resulting in inaccurate film feeding, ensure the reliable conveying of the packaging film, and also ensure that each packaging bag reaches the predetermined length. On the other hand, the driving mechanism of the bag top sheet can be hidden in the bag forming frame, reducing the possible obstruction of external parts to the packaging film, and the structure is more compact. The driving mechanism of the bag top sheet can be hidden in the bag forming frame, and it is not easily affected by the drifting pharmaceutical powder, prolonging the service life and reducing the maintenance cost.

[0022] On the other hand, the top sealing displacement mechanism has its own conveying function. While sealing the packaging bag, it can drive the packaging bag to move, and the packaging action is smooth and compact. Brief Description of the Drawings

[0023] Figure 1 is a schematic diagram of the internal structure of a Chinese medicine granule bag-packing machine of the present invention;

[0024] Figure 2 is a schematic diagram of the structure of the film feeding and bag-making mechanism of the present invention;

[0025] Figure 3 is a schematic diagram of the structures of the bag forming device, film feeding device, and driving device of the present invention;

[0026] Figure 4 is Figure 3 an enlarged view of part A;

[0027] Figure 5 is Figure 3 an enlarged view of part B;

[0028] Figures 6 - 8It is a schematic structural diagram of the bottom sealing mechanism and the side sealing mechanism of the present invention from different perspectives;

[0029] Figures 9 - 11 It is a schematic structural diagram of the top sealing displacement mechanism of the present invention from different perspectives. Specific embodiments

[0030] To make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the orientation terms such as up, down, left, right, front, back, inside, and outside that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention and do not specifically limit the present invention.

[0031] Combined with Figure 1 , Figure 2 and Figure 9 As shown, a traditional Chinese medicine granule bagging machine provided by a specific embodiment of the present invention includes a film feeding and bag making mechanism 100, a bottom sealing mechanism 200, a side sealing mechanism 300, a bearing plate 400, a top sealing displacement mechanism 500, and a discharging mechanism 600; the film feeding and bag making mechanism 100 includes a bag forming frame 21, a shaping table 22, and a bag top sheet 32. The shaping table 22 is sleeved outside the bag forming frame 21, and the bag top sheet 32 is arranged at the lower end of the bag forming frame 21 and can move up and down to drive the packaging film for bottom sealing to move downward; the side sealing mechanism 300 is used for side sealing of the packaging film; the bottom sealing mechanism 200 is used for bottom sealing of the packaging film; the bearing plate 400 is used for bearing the sealed packaging bags; the top sealing displacement mechanism 500 includes a top sealing frame 73, a horizontal displacement mechanism 71 for moving the top sealing frame 73, a sealing driving mechanism 72, a left sealing component 74a, and a right sealing component 74b; the sealing driving mechanism 72, the left sealing component 74a, and the right sealing component 74b are arranged on the top sealing frame 73; the sealing driving mechanism 72 is used to drive the left sealing component 74a and the right sealing component 74b to approach or move away from each other; the discharging mechanism 600 is arranged below the top sealing displacement mechanism 500 and is used to send out the packaging bags.

[0032] This bagging machine forms the packaging bags in real time through the film feeding and bag making mechanism 100, and cooperates with the bottom sealing mechanism 200 and the side sealing mechanism 300 to seal the sides and bottom of the formed plastic film; while implementing bottom sealing, the bottom sealing mechanism 200 can cut off the previous packaging bag so that it falls into the bearing plate 400. The bearing plate 400 rotates itself to transfer the open packaging bags to different workstations. When the packaging bags are filled with medicine through an additional medicine dispensing device, the bearing plate 400 moves the packaging bags to the top sealing displacement mechanism 500 for top sealing. Finally, the packaging bags are transferred to the discharging mechanism 600 and sent out through the discharging mechanism 600.

[0033] In the above work process, the film feeding and bag making mechanism 100 includes a bag forming frame 21, a shaping table 22 and a bag pushing piece 32. The bag pushing piece 32 cooperates with the bottom sealing mechanism 200 arranged below it. After the bottom sealing mechanism 200 finishes sealing, the bag pushing piece 32 moves downward to push the packaging bag downward by a predetermined distance. Compared with the traditional roller film feeding method, this mechanism can avoid the inaccurate film feeding caused by the slippage between the roller and the packaging film, ensure the reliable conveying of the packaging film, and also ensure that each packaging bag reaches the predetermined length. On the other hand, the driving mechanism of the bag pushing piece 32 can be hidden in the bag forming frame 21, reducing the possible obstruction of the external parts to the packaging film, and the structure is more compact. The driving mechanism of the bag pushing piece 32 can be hidden in the bag forming frame 21, and it is not easily affected by the drifting pharmaceutical powder, prolonging the service life and reducing the maintenance cost.

[0034] On the other hand, the top sealing displacement mechanism 500 has its own conveying function and can drive the packaging bag to move while sealing the packaging bag, making the packaging operation smooth and compact.

[0035] Among them, the film feeding and bag making mechanism 100 specifically includes a frame 1, a bag forming device 2, a film feeding device 3 and a driving device 4; the bag forming device 2 and the driving device 4 are arranged on the frame 1, and the film feeding device 3 is arranged in the bag forming device 2; the bag forming device 2 includes a bag forming frame 21 and a shaping table 22, the shaping table 22 is sleeved outside the bag forming frame 21, and the plastic film passes through the gap between the bag forming frame 21 and the shaping table 22 to form a packaging bag; the film feeding device 3 includes a lead screw 31 and a bag pushing piece 32, and the bag pushing piece 32 is arranged at the lower end of the bag forming frame 21; the driving device 4 is used to drive the lead screw 31 to rotate, and drive the bag pushing piece 32 to move up and down through the lead screw 31.

[0036] In the process of making bags by this film feeding and bag making mechanism 100, the film feeding device 3 with a bag pushing piece 32 is used to convey the packaging film. The conveying of the packaging film is directly determined by the descending distance of the bag pushing piece 32, and the film feeding is accurate and reliable. The film feeding device 3 is concentrated inside the bag forming device 2, occupying less space.

[0037] In order to drive the stable movement of the bag pushing piece 32, combined with Figure 3 and Figure 4, the film feeding device 3 further includes a smooth rod 33, a slider 34, a lead screw mounting member 35 and a sliding sleeve 36; the sliding sleeve 36 is fixedly arranged on the lead screw mounting member 35, the lead screw 31 is rotatably arranged on the lead screw mounting member 35, the slider 34 is arranged on the lead screw 31, and is provided with a nut cooperating with the lead screw 31, and can move up and down under the drive of the lead screw 31; the smooth rod 33 is sleeved in the sliding sleeve 36, one end of which is fixedly connected to the slider 34, and the other end is fixedly connected to the bag top piece 32. The driving device 4 includes a motor 41, a first synchronous pulley 42 and a synchronous belt 43. A second synchronous pulley 37 is arranged at the top of the lead screw 31. The motor 41 is arranged on the frame 1, and its rotating shaft is connected to the first synchronous pulley 42. The first synchronous pulley 42 drives the second synchronous pulley 37 and the lead screw 31 to rotate through the synchronous belt 43.

[0038] The packaging film passes through the bag forming frame 21, wraps around the periphery of the bag forming frame 21, and is shaped by the outer contour of the bag forming frame 21. Then it passes through the gap between the bag forming frame 21 and the shaping table 22 to fix the shape of the packaging bag and form the shape of a continuous packaging bag. Below the bag forming frame 21, a sealing device is provided to seal and cut the packaging bag. After sealing, the bag top piece 32 of the film feeding device 3 starts to move downward, abuts against the bottom of the sealed packaging film, and pushes the whole packaging film downward. During the pushing process, it is also the process of fixing the bottom of the packaging bag, which directly affects whether the cut packaging bag can maintain the expected shape. Therefore, the design of the bag top piece 32 is particularly important.

[0039] Combined Figure 5 , in this solution, the bag top piece 32 includes a bottom bag top piece 321, side bag top pieces 322 and shaping pieces 323; the bottom bag top piece 321 has a flat bottom edge that is horizontal; the side bag top pieces 322 are inverted triangles; the shaping pieces 323 are arranged above the front and rear of the bottom bag top piece 321. The side bag top pieces 322 shape the sides of the packaging bag to ensure that the opening of the packaging bag is opened, and form certain side edges to fix the shape of the packaging bag. The bottom bag top piece 321 is used to ensure that the packaging film is evenly pulled down, and will not tilt during the pulling process due to one side being pulled down too fast, and fixes the bottom edge of the packaging film to ensure that the bottom edge gradually opens upward from the fit, and cooperates with the side bag top pieces 322 to ensure that the opening shape of the formed packaging bag is unified, which is convenient for subsequent automatic blanking work.

[0040] Preferably, the bottom top bag sheet 321 is arranged between the left and right side top bag sheets 322, and the lower tip of the side top bag sheet 322 is lower than the straight bottom edge of the bottom top bag sheet 321. The lower tip of the top bag sheet 32 ​​first contacts the bottom seal portion of the packaging film to form a shaping point; then the straight bottom edge contacts the bottom seal portion in a line, and the bottom seal portion of the packaging film is straightened under the premise of reserving the deformation amount. Through the above action, the bottom shaping of the packaging bag can be completed in the process of pushing the packaging film downward. The bottom top bag sheet 321 also has a central convex surface 325, which is used to open the middle of the packaging bag.

[0041] Preferably, the side top bag sheet 322 is gradually tilted outward from top to bottom. A shaping cavity 324 is formed between the bottom top bag sheet 321 and the shaping sheet 323. The above structural design can reserve sufficient deformation space for the middle and upper parts of the packaging bag. While shaping the bottom of the packaging bag, the packaging bag is shaped with gradually weakened strength from bottom to top through the downward pushing force, ensuring that the upper and middle parts of the packaging bag have a natural opening tendency.

[0042] In order to reliably shape the packaging film, the bag forming frame 21 includes a front guide frame 211 and a rear guide column 212; the front of the front guide frame 211 is an inverted trapezoid, and the rear guide column 212 is arranged at the lower end of the front guide frame 211, and the rear guide column 212 is a rectangular tube. The bag forming device 2 also includes a bag forming frame fixing part 23, and the bag forming frame fixing part 23 is used to fix the bag forming frame 21 on the frame 1. The bag forming frame 21 fixing frame is installed horizontally and connected to the back of the front guide frame 211 to avoid affecting the moving path of the packaging film. The rear guide column 212 is a rectangular tube, which can further shape the packaging film on the one hand, and on the other hand, it can accommodate the film feeding device 3 inside to further simplify the structure of the equipment.

[0043] Preferably, an origin induction switch 37 is provided at the upper end of the rear end guide column 212, and an origin induction switch detection piece 38 is provided on the slider 34. When the slider 34 is raised to the position, the origin induction switch 37 is triggered by the origin induction switch detection piece 38, and the position of the top bag piece 32 is indirectly monitored.

[0044] like Figures 6 - 8As shown in the figure, the bottom sealing mechanism 200 is generally arranged below the film feeding and bag making mechanism 100, and includes a frame 51, a slide bar 52, a linkage slider 53, a left slider 541, a right slider 542, a connecting rod 55, a left heat sealing block 561, a right heat sealing block 562, a first gear 571, a second gear 572, a first driving rod 581, a second driving rod 582 and a bottom sealing motor 59; the bottom sealing motor 59 is connected to the first gear 571, and the surface of the first gear 571 is connected to the linkage slider 53 through the first driving rod 581; the second gear 572 meshes with the first gear 571, and the surface of the second gear 572 is connected to the left slider 541 through the second driving rod 582; the slide bar 52 is fixed on the frame 51, and the linkage slider 53, the left slider 541 and the right slider 542 are sleeved on the slide bar 52 and can slide along the slide bar 52; the linkage slider 53 is fixedly connected to the right slider 542 through the connecting rod 55; the left heat sealing block 561 is arranged on the left slider 541, the right heat sealing block 562 is arranged on the right slider 542, and the left heat sealing block 561 and the right heat sealing block 562 are arranged opposite to each other.

[0045] The working principle of the bottom sealing mechanism 200 is as follows:

[0046] The bottom sealing motor 59 drives the linkage slider 53 to move through the first gear 571, and the linkage slider 53 is connected to the right slider 542; at the same time, the second gear 572 meshing with the first gear 571 drives the left slider 541 to slide, so that the left heat sealing block 561 and the right heat sealing block 562 can move away from or close to each other synchronously, thereby sealing the bottom of the plastic bag located between the left heat sealing block 561 and the right heat sealing block 562. The linkage slider 53, the left slider 541 and the right slider 542 are sleeved on the slide bar 52, and the slide bar 52 is fixed on the frame 51. Since the slide bar 52 is reliably fixed by the frame 51, the torsional resistance of the linkage slider 53, the left slider 541 and the right slider 542 arranged on it is stronger than that of the ordinary limiting method, and the movement of the linkage slider 53, the left slider 541 and the right slider 542 is more accurate. By controlling the displacement of the left slider 541 and the right slider 542 through two meshing gears, the structure is simple and the work is stable and reliable.

[0047] Preferably, scissors 50 are further arranged at the bottoms of the left slider 541 and the right slider 542. The scissors 50 are opened or closed as the left slider 541 and the right slider 542 move, so as to automatically cut off the sealed packaging bag.

[0048] The side sealing mechanism 300 includes a side sealing base 61 and a side heat sealing block 62. The side sealing base 61 is arranged on the left slider 541, and the side heat sealing block 62 is arranged on the side sealing base 61. The side sealing base 61 is further connected with a guide post 63, and the guide post 63 is connected with a fixedly arranged slide base 64. The guide post 63 can limit the movement of the side heat sealing block 62 to prevent the side heat sealing block 62 from shifting due to force and affecting the heat sealing quality. The side heat sealing block 62 is arranged on the left slider 541, eliminating the need for an additional driving mechanism and saving parts.

[0049] Preferably, the connecting rod 55 is a rectangular bar, and two connecting rods 55 are arranged in parallel. The bottom sealing motor 59 is fixed to the frame 51 through a motor mounting plate 591. The motor mounting plate 591 includes a gear groove 592 and a motor mounting portion 593. The side of the gear groove 592 is open, and the motor mounting portion 593 is connected to the bottom surface of the gear groove 592, leaving a maintenance space for easy installation and maintenance.

[0050] As Figures 9 - 11 As shown, the top sealing displacement mechanism 500 is arranged on one side of the bottom sealing mechanism 200, and the carrier plate 400 is arranged below the bottom sealing mechanism 200 and the top sealing displacement mechanism 500. Among them, the top sealing displacement mechanism 500 includes a lateral displacement mechanism 71, a sealing driving mechanism 72, a top sealing frame 73, a left sealing assembly 74a and a right sealing assembly 74b; the sealing driving mechanism 72 is used to drive the left sealing assembly 74a and the right sealing assembly 74b to move towards or away from each other; the lateral displacement mechanism 71 is used to drive the sealing driving mechanism 72, the left sealing assembly 74a and the right sealing assembly 74b to translate as a whole; the left sealing assembly 74a and the right sealing assembly 74b have the same structure, including a sliding plate 741, a heating strip 742 and a pressing plate 743; the pressing plate 743 of the right sealing assembly is connected with a guide frame 75, and the guide frame 75 includes a side guide plate 751 and a front guide plate 752; the pressing plate 743 of the left sealing assembly is connected with a rear guide plate 76. The rear guide plate 76 is located between the two side guide plates 751.

[0051] Adopting this solution, during the process of the left sealing assembly 74a and the right sealing assembly 74b moving towards each other, the guide frame 75 and the rear guide plate 76 gradually sandwich the medicine bag from all four sides, so that the shape of the deformed medicine bag opening changes to a preset shape, and at the same time, it can also correct the position of the offset medicine bag, thereby improving the quality of the heating strip 742 for heat-sealing the bag opening. Moreover, after heat sealing, it can be moved to the corresponding blanking station.

[0052] Specifically, the sealing driving mechanism 72, the left sealing assembly 74a and the right sealing assembly 74b are arranged on the top sealing frame 73. The lateral displacement mechanism 71 includes a lateral driving motor 711, a first swing arm 712, a lateral guide rail 713 and a lateral slider 714. The first swing arm 712 is arranged on the lateral driving motor 711, and the lateral slider 714 is sleeved on the lateral guide rail 713. The lateral slider 714 is further provided with a first convex block 715, and the end of the first swing arm 712 is provided with a slotted groove 716, and the first convex block 715 is located in the slotted groove 716.

[0053] Therefore, when the lateral driving motor 711 drives the first swing arm 712 to swing left and right, it will drive the lateral slider 714 to move left and right along the lateral guide rail 713. The top sealing frame 73 is connected to the lateral slider 714. Therefore, under the control of the lateral driving motor 711, it can drive the sealing driving mechanism, the left sealing assembly and the right sealing assembly to perform overall translation, so as to drive the medicine bag to switch between the sealing station and the blanking station.

[0054] In order to drive the left sealing assembly and the right sealing assembly to approach or move away from each other, the sealing driving mechanism 72 includes a sealing motor 721, a second swing arm 722 and a linkage block 723. The linkage block 723 is hinged to the top sealing frame 73. A sliding groove 726 is arranged on the linkage block 723. The second swing arm 722 is connected to the sealing motor 721, and its end is provided with a second convex block 724. The second convex block 724 is arranged in the sliding groove 726. The linkage block 723 is connected to the corresponding pressing plate 743 through the corresponding connecting rod 725. The sliding groove 726 is located above the hinge point of the connecting rod 725 and the linkage block 723. The hinge points of the two connecting rods 725 and the linkage block 723 are distributed on both sides of the rotation axis point of the linkage block 723 and the top sealing frame 73. Therefore, when the linkage block 723 swings left and right, it will drive the pressing blocks of the left sealing assembly 74a and the right sealing assembly 74b to move towards each other or away from each other. Thus, the opening and closing function between the left sealing assembly 74a and the right sealing assembly 74b is realized.

[0055] In order to guide the movement between the left sealing assembly 74a and the right sealing assembly 74b, a guide post 731 is further arranged on the frame. The sliding plate 741 is sleeved on the guide post 731 and can slide along the guide post 731.

[0056] The heating strip 742 and the pressing plate 743 are both arranged on the sliding plate 741 and can move along with the sliding plate 741, so that after the medicine bag is shaped, heat sealing treatment can be carried out together.

[0057] Furthermore, since different medicine bags have slightly different thicknesses, in order to ensure that when the pressing plates 743 on both sides are driven by the sealing driving mechanism 72 to move to the positions required for shaping, the heating bars 742 on both sides can just reach the optimal spacing for heat-sealing the medicine bags, so as to avoid crushing the bag mouths. The heating bars 742 and the pressing plates 743 are both fixed to the sliding plate 741 through the horizontal connecting columns 732. Preferably, the horizontal connecting columns 732 are screw columns, so as to adjust the spacing between the heating bars 742 on both sides by means of thread adjustment.

[0058] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A Chinese medicine granule bagging machine, characterized in that, It includes a film feeding and bag making mechanism, a bottom sealing mechanism, a side sealing mechanism, a carrying tray, a top sealing displacement mechanism and a discharging mechanism; The film feeding and bag making mechanism includes a bag forming frame, a shaping table and a top bag piece. The shaping table is sleeved outside the bag forming frame. The top bag piece is arranged at the lower end of the bag forming frame and can move up and down to drive the packaging film at the bottom edge to move downward; The side sealing mechanism is used for sealing the side edges of the packaging film; The bottom sealing mechanism is used for sealing the bottom edge of the packaging film; The carrying tray is used for carrying the sealed packaging bags; The top sealing displacement mechanism includes a top sealing frame, a lateral displacement mechanism for moving the top sealing frame, a sealing driving mechanism, a left sealing component and a right sealing component; The sealing driving mechanism, the left sealing component and the right sealing component are arranged on the top sealing frame; The sealing driving mechanism is used for driving the left sealing component and the right sealing component to move closer to or away from each other; The discharging mechanism is arranged below the top sealing displacement mechanism and is used for sending out the packaging bags; The film feeding and bag making mechanism further includes a driving device and a film feeding device, The film feeding device includes a lead screw, a smooth rod, a slider, a lead screw mounting piece and a sliding sleeve; The sliding sleeve is fixedly arranged on the lead screw mounting piece. The lead screw is rotatably arranged on the lead screw mounting piece. The slider is arranged on the lead screw and can move up and down under the drive of the lead screw; The smooth rod is sleeved in the sliding sleeve. One end of the smooth rod is fixedly connected with the slider, and the other end is fixedly connected with the top bag piece; The driving device is used for driving the lead screw to rotate and driving the top bag piece to move up and down through the lead screw; The top bag piece includes a bottom top bag piece, a side top bag piece and a shaping piece.

2. The Chinese medicine granule bagging machine according to claim 1, characterized in that, The bottom top bag piece has a flat bottom edge that is horizontal; the side top bag piece is an inverted triangle; the shaping piece is arranged above the front and rear of the bottom top bag piece.

3. The Chinese medicine granule bagging machine according to claim 2, characterized in that, The bottom top bag piece is arranged between the left and right side top bag pieces, and the lower tip of the side top bag piece is lower than the flat bottom edge of the bottom top bag piece.

4. The Chinese medicine granule bagging machine according to claim 3, wherein, The side top bag piece is gradually inclined outward from top to bottom; a shaping cavity is formed between the bottom top bag piece and the shaping piece.

5. The Chinese medicine granule bagging machine according to claim 1, characterized in that, The bottom sealing mechanism includes a frame, a sliding rod, a linkage slider, a left slider, a right slider, a connecting rod, a left heat sealing block, a right heat sealing block, a first gear, a second gear, a first driving rod, a second driving rod and a bottom sealing motor; The bottom sealing motor is connected with the first gear, and the surface of the first gear is connected with the linkage slider through the first driving rod; The second gear meshes with the first gear, and the surface of the second gear is connected with the left slider through the second driving rod; The sliding rod is fixed on the frame. The linkage slider, the left slider and the right slider are sleeved on the sliding rod and can slide along the sliding rod; The linkage slider is fixedly connected with the right slider through a connecting rod; The left heat sealing block is arranged on the left slider, the right heat sealing block is arranged on the right slider, and the left heat sealing block and the right heat sealing block are arranged opposite to each other.

6. The Chinese medicine granule bagging machine according to claim 5, characterized in that, Scissors are further arranged at the bottoms of the left slider and the right slider.

7. The Chinese medicine granule bagging machine according to claim 5, characterized in that, A side sealing seat is further arranged on the left slider, and a side heat sealing block is arranged on the side sealing seat.

8. The Chinese medicine granule bagging machine according to claim 1, characterized in that The left sealing component and the right sealing component have the same structure, including a sliding plate, a heating strip and a pressing plate; the pressing plate of the right sealing component is connected with a guiding frame, and the guiding frame includes a side guiding plate and a front guiding plate; the pressing plate of the left sealing component is connected with a rear guiding plate. The lateral displacement mechanism includes a lateral driving motor, a first swing arm, a lateral guide rail and a lateral slider; the first swing arm is arranged on the lateral driving motor, and the lateral slider is sleeved on the lateral guide rail; the lateral slider is further provided with a first convex block, the end of the first swing arm is provided with a slot, and the first convex block is located in the slot.

9. The Chinese medicine granule bag-packing machine according to claim 8, characterized in that, The sealing driving mechanism includes a sealing motor, a second swing arm and a linkage block; the linkage block is hinged to the top sealing frame, the linkage block is provided with a sliding slot, the second swing arm is connected with the sealing motor, the end of the second swing arm is provided with a second convex block, and the second convex block is arranged in the sliding slot; the linkage block is connected with the corresponding pressing plate through a corresponding connecting rod.

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