The blanking mechanism of a bag-making machine

Abstract

The present invention relates to the field of on-site preparation and packaging equipment for traditional Chinese medicine granules, and specifically discloses a blanking mechanism of a bag-making machine, which includes a moving mechanism and a clamping mechanism, and the moving mechanism is connected to the clamping mechanism; the moving mechanism includes a linkage limiting mechanism and a displacement driving mechanism, the linkage limiting mechanism includes a base, a horizontal guide post, a horizontal sliding seat, a vertical guide post, a vertical sliding seat, a driving rod and a special-shaped guide groove; the displacement driving mechanism includes a displacement motor and a swing rod, the swing rod is connected to the rotating shaft of the displacement motor, a strip hole is provided on the swing rod, and the driving end is located in the strip hole; the special-shaped guide groove includes a vertical groove section and a horizontal groove section; the clamping mechanism is used for sealing and clamping the medicine bags. By adopting the present invention, the sealing and discharging of the medicine bags can be completed, the discharging action is carried out while clamping and sealing, the waiting time for sealing is reduced, and the sealing efficiency is improved.

Description

Technical Field

[0001] The invention relates to on-site preparation and packaging equipment for traditional Chinese medicine granules, in particular to a feeding mechanism of a bag making machine. Background Art

[0002] On-site preparation and packaging equipment for Chinese medicine granules is used to prepare and package Chinese medicine on-site according to a doctor's prescription. After the Chinese medicine granules are discharged according to the prescription, they need to be sealed by a sealing mechanism, and then clamped and discharged by a clamping mechanism.

[0003] Existing sealing mechanisms are fixed and remain stationary during the sealing process. Therefore, other processes must wait for the sealing process to complete before proceeding, resulting in low efficiency. Furthermore, the clamping mechanism is typically driven by a screw to lift and translate, requiring multiple motors and screws. This results in high costs, inflexible movement, and low transfer efficiency. Summary of the Invention

[0004] In order to solve the defects of the prior art, the present invention provides a bag making machine unloading mechanism, which can complete the sealing and discharging of medicine bags, and can discharge the materials while clamping and sealing, thereby reducing the waiting time for sealing and improving the sealing efficiency.

[0005] In order to solve the above technical problems, an embodiment of the present invention provides a bag-making machine unloading mechanism, including a moving mechanism and a clamping mechanism, the moving mechanism is connected to the clamping mechanism, and is used to drive the clamping mechanism to move; the moving mechanism includes a linkage limiting mechanism and a displacement driving mechanism, the linkage limiting mechanism includes a base, a transverse guide column, a transverse slide, a vertical guide column, a vertical slide, a driving rod and a special-shaped guide groove; the transverse guide column is transversely arranged on the base, the transverse slide is sleeved on the transverse guide column and can slide relative to the transverse guide column; the vertical guide column is arranged on the transverse slide, and the The vertical slide is sleeved on the vertical guide column and can slide relative to the vertical guide column; the vertical slide is provided with the driving rod, the special-shaped guide groove is provided on the base, the driving rod passes through the special-shaped guide groove and is provided with a driving end; the displacement driving mechanism includes a displacement motor and a rocker arm, the rocker arm is connected to the rotating shaft of the displacement motor, the rocker arm is provided with a bar hole, and the driving end is located in the bar hole; the special-shaped guide groove includes a vertical groove section located on the sealing station, and a horizontal groove section formed by extending horizontally from the upper end of the vertical groove section; the clamping mechanism is used to seal and clamp the medicine bag.

[0006] As an improvement of the above solution, the displacement motor can drive the rocker arm to swing, and drive the driving rod to move from the bottom of the vertical slot section to the end of the transverse slot section.

[0007] As an improvement to the above solution, the horizontal groove section includes an arc-shaped guiding section, a horizontal section, and an inclined section connected in sequence; the arc-shaped guiding section is connected to the vertical groove section, and the inclined section gradually slopes downward starting from the connection with the horizontal section.

[0008] As an improvement to the above solution, bearings are provided at the mating positions of the driving rod with the special-shaped guiding groove and the slotted hole.

[0009] As an improvement to the above solution, the clamping mechanism includes a clamping seat, and the clamping seat is connected to the vertical sliding seat; a clamping motor, a rack, a sealing guide post, and a sealing claw are provided on the clamping seat; the sealing guide post is provided at the lower part of the clamping seat, the sealing claw is sleeved on the sealing guide post, and the clamping motor can drive the sealing claw to slide along the sealing guide post through the rack.

[0010] As an improvement to the above solution, a heat-sealing strip and a shaping strip are provided on the sealing claw, and the shaping strip is provided below the heat-sealing strip; a heat-sealing baffle is provided on the opposite side of the heat-sealing strip, and a shaping baffle is provided on the opposite side of the shaping strip.

[0011] As an improvement to the above solution, the shaping baffle includes a vertically arranged clamping surface and a shaping surface that is inclined inward and located below the clamping surface; the shape of the shaping baffle is symmetrical to the shaping surface.

[0012] As an improvement to the above solution, a bag-supporting rod is provided between the heat-sealing strip and the heat-sealing baffle, and the bag-supporting rod is trapezoidal in an inverted shape.

[0013] As an improvement to the above solution, the bag-supporting rod is provided on a follow-up lifting mechanism; the follow-up lifting mechanism can lift the bag-supporting rod as the distance between the heat-sealing strip and the heat-sealing baffle approaches.

[0014] As an improvement to the above solution, the follow-up lifting mechanism includes a follow-up block fixedly connected to the sealing claw, and a driving inclined surface is provided on the follow-up block; the bag-supporting rod is provided at the bottom of a lifting rod that can move vertically, and a lifting wheel is connected to the top of the lifting rod, and the lifting wheel is supported on the driving inclined surface.

[0015] Implementing the embodiments of the present invention has the following beneficial effects:

[0016] With the above structure, a complex motion trajectory of the clamping mechanism can be realized with a relatively simple driving structure, the structure is compact, the operation is stable, and the application requirements of scenarios such as pharmacies are met. The action of discharging materials is carried out while clamping and sealing, reducing the waiting time for sealing and improving the sealing efficiency. During sealing, the shaping operation of the medicine bag can be carried out through the cooperation of the bag-supporting rod and the shaping strip, preventing defects such as wrinkles at the sealing part, and the sealing quality is high. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the blanking mechanism of a bag-making machine according to the present invention;

[0018] Figure 2 It is a schematic structural diagram of the moving mechanism of the present invention;

[0019] Figure 3 It is a schematic structural diagram of the moving mechanism of the present invention from another perspective;

[0020] Figure 4 It is a schematic structural diagram of the clamping mechanism of the present invention;

[0021] Figure 5 It is a schematic structural diagram of the clamping mechanism of the present invention from another perspective;

[0022] Figure 6 It is a schematic structural diagram of the bag-supporting rod and the follow-up lifting mechanism of the present invention. Detailed implementation manners

[0023] 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 upper, lower, left, right, front, rear, inner, outer and other orientation terms that appear or will appear in the present invention are only based on the accompanying drawings of the present invention, and they do not specifically limit the present invention.

[0024] Such as Figures 1 - 3As shown in the figure, a blanking mechanism of a bag making machine is provided in a specific embodiment of the present invention, which includes a moving mechanism 100 and a clamping mechanism 200. The moving mechanism 100 is connected to the clamping mechanism 200 and is used to drive the clamping mechanism 200 to move. The moving mechanism 100 includes a linkage limiting mechanism 1 and a displacement driving mechanism 2. The linkage limiting mechanism 1 includes a base 11, a horizontal guide post 12, a horizontal sliding seat 13, a vertical guide post 14, a vertical sliding seat 15, a driving rod 16, and a special-shaped guide groove 17. The horizontal guide post 12 is horizontally arranged on the base 11. The horizontal sliding seat 13 is sleeved on the horizontal guide post 12 and can slide relative to the horizontal guide post 12. The vertical guide post 14 is arranged on the horizontal sliding seat 13. The vertical sliding seat 15 is sleeved on the vertical guide post 14 and can slide relative to the vertical guide post 14. The driving rod 16 is arranged on the vertical sliding seat 15. The special-shaped guide groove 17 is arranged on the base 11. The driving rod 16 passes through the special-shaped guide groove 17 and is provided with a driving end 161. The displacement driving mechanism 2 includes a displacement motor 21 and a swing rod 22. The swing rod 22 is connected to the rotating shaft of the displacement motor 21. A slot hole 23 is arranged on the swing rod 22. The driving end 161 is located in the slot hole 23. The special-shaped guide groove 17 includes a vertical groove section 171 at the sealing station and a horizontal groove section 172 extending horizontally from the upper end of the vertical groove section 171. The clamping mechanism 200 is used to seal and clamp the medicine bag.

[0025] Among them, the displacement motor 21 can drive the swing rod 22 to swing, driving the driving rod 16 to move from the bottom of the vertical groove section 171 to the end of the horizontal groove section 172.

[0026] Preferably, the horizontal groove section 172 includes an arc-shaped guiding section 173, a horizontal section 174, and an inclined section 175 that are connected in sequence. The arc-shaped guiding section 173 is connected to the vertical groove section 171. The inclined section 175 gradually slopes downward from the connection with the horizontal section 174. Bearings 18 are arranged at the matching positions of the driving rod 16 with the special-shaped guide groove 17 and the slot hole 23.

[0027] As Figure 4 and Figure 5 shown in the figure, the clamping mechanism 200 includes a clamping seat 3. The clamping seat 3 is connected to the vertical sliding seat 15. A clamping motor 4, a rack 5, a sealing guide post 6, and a sealing claw 7 are arranged on the clamping seat 3. The sealing guide post 6 is arranged at the lower part of the clamping seat 3. The sealing claw 7 is sleeved on the sealing guide post 6. The clamping motor 4 can drive the sealing claw 7 to slide along the sealing guide post 6 through the rack 5.

[0028] The sealing claw 7 is provided with a heat-sealing strip 71 and a shaping strip 72, and the shaping strip 72 is arranged below the heat-sealing strip 71; a heat-sealing baffle 73 is arranged on the opposite side of the heat-sealing strip 71, and a shaping baffle 74 is arranged on the opposite side of the shaping strip 72. The shaping baffle 74 includes a vertically arranged clamping surface 741 and a shaping surface 742 that is inclined inward and is located below the clamping surface 741; the shape of the shaping baffle 74 is symmetrical to the shaping surface 742.

[0029] Combined with Figure 6 , in order to prevent the medicine bag from generating wrinkles during the sealing process, a bag-supporting rod 8 is arranged between the heat-sealing strip 71 and the heat-sealing baffle 73, and the bag-supporting rod 8 is trapezoidal in reverse. The bag-supporting rod 8 is arranged on a follow-up lifting mechanism 9; the follow-up lifting mechanism 9 can lift the bag-supporting rod 8 as the distance between the heat-sealing strip 71 and the heat-sealing baffle 73 approaches. The follow-up lifting mechanism 9 includes a follow-up block 91 fixedly connected to the sealing claw 7, and a driving inclined surface 92 is arranged on the follow-up block 91; the bag-supporting rod 8 is arranged at the bottom of a lifting rod 93 that can move vertically, and a lifting wheel 94 is connected to the top of the lifting rod 93, and the lifting wheel 94 is supported on the driving inclined surface 92.

[0030] The working principle of this blanking mechanism is as follows:

[0031] 1. At the sealing station, the vertical sliding seat 15 is located at the bottom of the vertical groove section 171 of the special-shaped guiding groove 17. The medicine bag is lifted and enters the clamping mechanism 200. The medicine bag initially contacts the bag-supporting rod 8, and the trapezoidal rod body extends into the opening of the medicine bag, opening the medicine bag in a direction parallel to the heat-sealing baffle 73.

[0032] 2. The gear of the clamping motor 4 drives the rack 5 to move, and the sealing claws 7 approach each other. In this embodiment, there are two groups of sealing claws 7, and they are symmetrically arranged to provide sealing operations for two medicine bags simultaneously. As the heat-sealing strip 71 approaches the heat-sealing baffle 73, the shaping strip 72 also approaches the shaping baffle 74. The shaping baffle 74 includes a vertically arranged clamping surface 741 and a shaping surface 742 that is inclined inward and is located below the clamping surface 741; the shape of the shaping baffle 74 is symmetrical to the shaping surface 742, which can press the lower part of the medicine bag downward and sort the medicine in the medicine bag downward to prevent the traditional Chinese medicine particles from staying in the sealing area.

[0033] 3. Since the bag-supporting rod 8 is provided on the follow-up lifting mechanism 9, and the follow-up lifting mechanism 9 can lift the bag-supporting rod 8 as the distance between the heat-sealing strip 71 and the heat-sealing baffle 73 approaches. The follow-up lifting mechanism 9 includes a follow-up block 91 fixedly connected to the sealing claw 7. A driving inclined surface 92 is provided on the follow-up block 91. The bag-supporting rod 8 is provided at the bottom of a lifting rod 93 capable of vertical movement. The top of the lifting rod 93 is connected with a lifting wheel 94, and the lifting wheel 94 is supported on the driving inclined surface 92. During the approaching process of the sealing claw 7, the bag-supporting rod 8 will be lifted through the driving inclined surface 92 on the follow-up block 91, ensuring that the bag-supporting rod 8 can play a role in shaping the bag mouth before sealing and can withdraw from the bag mouth of the medicine bag in time at the moment of sealing. The heat-sealing strip 71 on the sealing claw 7 generates heat to heat-seal the bag mouth of the medicine bag.

[0034] 4. While the heat-sealing is in progress, the moving mechanism 100 drives the clamping mechanism 200 to move. Specifically, the displacement motor 21 drives the swing rod 22 to swing through the gear 24. Through the combined limit of the horizontal guide post 12, the vertical guide post 14 and the special-shaped guide groove 17, the clamping mechanism 200 can move smoothly along the special-shaped guide groove 17. In the special-shaped guide groove 17, first pass through the vertical groove section 171, so that the medicine bag can be lifted vertically and separated from the loading mechanism for loading the medicine bag; then pass through the arc-shaped guide section 173, so that the clamping mechanism 200 can turn smoothly; then pass through the horizontal section 174, so that the clamping mechanism 200 performs a certain distance of horizontal displacement to cross the possible obstacles; finally pass through the inclined section 175, and the clamping mechanism 200 clamps the medicine bag and moves down while translating. When the clamping mechanism 200 reaches the end of the inclined section 175, the sealing claw 7 is released, and the sealed medicine bag continues to move obliquely downward by its own inertia and gravity and smoothly enters the discharge port. This avoids the problem that due to the light weight and large surface area of the medicine bag, the falling trajectory is unstable affected by wind resistance, and the medicine bag deviates from the discharge port.

[0035] With the above structure, a complex movement trajectory of the clamping mechanism 200 can be realized with a relatively simple driving structure, the structure is compact, the operation is stable, and the application requirements of scenarios such as pharmacies are met. The discharging action is carried out while clamping and sealing, reducing the waiting time for sealing and improving the sealing efficiency. During sealing, the bag-supporting rod 8 and the shaping strip 72 can cooperate to perform the shaping operation of the medicine bag, preventing defects such as wrinkles at the sealing part, and the sealing quality is high.

[0036] The above is the preferred implementation manner 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 retouches can still be made, and these improvements and retouches are also regarded as the protection scope of the present invention.

Claims

1. A blanking mechanism for a bag-making machine, characterized in that, It includes a moving mechanism and a clamping mechanism, The moving mechanism is connected to the clamping mechanism and is used to drive the clamping mechanism to move; The moving mechanism includes a linkage limiting mechanism and a displacement driving mechanism. The linkage limiting mechanism includes a base, a horizontal guide post, a horizontal sliding seat, a vertical guide post, a vertical sliding seat, a driving rod, and a special-shaped guide groove; The horizontal guide post is horizontally arranged on the base, and the horizontal sliding seat is sleeved on the horizontal guide post and can slide relative to the horizontal guide post; The vertical guide post is arranged on the horizontal sliding seat, and the vertical sliding seat is sleeved on the vertical guide post and can slide relative to the vertical guide post; The driving rod is arranged on the vertical sliding seat, the special-shaped guide groove is arranged on the base, and the driving rod passes through the special-shaped guide groove and is provided with a driving end; The displacement driving mechanism includes a displacement motor and a swing rod. The swing rod is connected to the rotating shaft of the displacement motor. A slotted hole is arranged on the swing rod, and the driving end is located in the slotted hole; The special-shaped guide groove includes a vertical groove section at the sealing station and a horizontal groove section horizontally extending from the upper end of the vertical groove section; The clamping mechanism is used for sealing and clamping the medicine bag.

2. The blanking mechanism of the bag making machine according to claim 1, characterized in that, The displacement motor can drive the swing rod to swing, driving the driving rod to move from the bottom of the vertical groove section to the end of the horizontal groove section.

3. The blanking mechanism of the bag-making machine according to claim 1 or 2, characterized in that, The horizontal groove section includes a sequentially connected arc-shaped guiding section, a horizontal section, and an inclined section; the arc-shaped guiding section is connected to the vertical groove section, and the inclined section gradually slopes downward from the connection with the horizontal section.

4. The blanking mechanism of the bag-making machine according to claim 1 or 2, characterized in that, Bearings are provided at the matching positions of the driving rod with the special-shaped guide groove and the slotted hole.

5. The blanking mechanism of the bag-making machine according to claim 1, characterized in that, The clamping mechanism includes a clamping seat, and the clamping seat is connected to the vertical sliding seat; a clamping motor, a rack, a sealing guide post, and sealing claws are arranged on the clamping seat; the sealing guide post is arranged at the lower part of the clamping seat, the sealing claws are sleeved on the sealing guide post, and the clamping motor can drive the sealing claws to slide along the sealing guide post through the rack.

6. The blanking mechanism of the bag-making machine according to claim 5, characterized in that, A heat-sealing strip and a shaping strip are arranged on the sealing claws, and the shaping strip is arranged below the heat-sealing strip; a heat-sealing baffle is arranged on the opposite side of the heat-sealing strip, and a shaping baffle is arranged on the opposite side of the shaping strip.

7. The blanking mechanism of the bag-making machine according to claim 6, characterized in that, The shaping baffle includes a vertically arranged clamping surface and a shaping surface that is inclined inward and located below the clamping surface; the shape of the shaping baffle is symmetrical to the shaping surface.

8. The blanking mechanism of the bag-making machine according to claim 6 or 7, characterized in that A bag-supporting rod is arranged between the heat-sealing strip and the heat-sealing baffle, and the bag-supporting rod is trapezoidal in reverse.

9. The blanking mechanism of the bag-making machine according to claim 8, characterized in that, The bag-supporting rod is arranged on a follow-up lifting mechanism; the follow-up lifting mechanism can lift the bag-supporting rod as the distance between the heat-sealing strip and the heat-sealing baffle approaches.

10. The blanking mechanism of the bag-making machine according to claim 9, characterized in that, The follow-up lifting mechanism includes a follow-up block fixedly connected to the sealing claw. A driving inclined surface is arranged on the follow-up block; the bag-supporting rod is arranged at the bottom of a lifting rod that can move vertically, and a lifting wheel is connected to the top of the lifting rod, and the lifting wheel is supported on the driving inclined surface.

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