Dispensing equipment and method for Chinese medicine formula granules

Abstract

The present invention provides a dispensing method and dispensing equipment for Chinese medicine formula granules. The dispensing equipment includes a workbench, a bag feeding unit, a clamping and transferring unit, a bag opening mechanism, a plurality of dispensing units and a sealing unit arranged on the workbench; each dispensing unit is a double-head synchronous blanking dispensing structure; the clamping and transferring unit includes: a clamping part for clamping the packaging bag; a bag opening mechanism for opening the packaging bag; and a bag holding mechanism for stretching and shaping the opened packaging bag; by arranging a double-station blanking method, production efficiency is improved. Since the double-station structure has a larger amount of material discharge per unit time, higher requirements are placed on the opening degree and opening stability of the packaging bag. By arranging the bag holding mechanism to stretch and shape the packaging bag, the problem that the opening degree of the packaging bag is unstable during the dispensing process, which easily affects the dispensing quality, the scrap rate and the increase in raw material waste is improved.

Claims

1. A dispensing device for Chinese medicine granules, comprising a workbench (1), a bag feeding unit (4), a clamping and transferring unit (5), a bag opening mechanism (51), a plurality of dispensing units (7) and a sealing unit (8) arranged on the workbench (1), characterized in that: The clamping and transferring unit (5) comprises: a clamping portion (521) for clamping the packaging bag (100); a bag opening mechanism (51) for opening the packaging bag (100); and a bag-opening mechanism (52) for opening and shaping the opened packaging bag (100); The clamping and transferring unit (5) clamps the packaging bag (100) output by the bag feeding unit (4), and sequentially transfers the packaging bag (100) through the bag opening mechanism (51), the adjusting unit (7), and the sealing unit (8) to sequentially complete the bag opening, stretching and shaping, filling, and sealing actions, and the bag stretching mechanism (52) always keeps the packaging bag (100) in the stretched and shaped state after the packaging bag (100) is opened until before sealing; The workbench is provided with a conveying mechanism (2), and the clamping transfer unit (5) further comprises a support (3) for being mounted on the conveying mechanism (2); The bag-supporting mechanism (52) is mounted on the support (3) and comprises: An opening member (522) for opening the packaging bag (100); and A transmission part (523) driving the support member (522) to lift and rotate; The opening member (522) is driven by the transmission part (523) to move its end downward and be inserted into the interior of the packaging bag (100), and then deflect outward to open the mouth of the packaging bag (100); The transmission part (523) comprises: A support member (5231) movably mounted inside the support (3); A guide limiting groove (5232) provided on the support member (5231); and an adjusting member (5233) provided on the support (3) and inserted into the guide limiting groove (5232); The spreading member (522) is provided on the supporting member (5231), and when the supporting member (5231) is raised or lowered, the adjusting member (5233) guides and limits the guiding limiting groove (5232) so that it rotates synchronously; The clamping portion (521) comprises: a clamping claw assembly (5212) provided on the support (3) for clamping the packaging bag (100); The clamping jaw assembly (5212) includes: a positioning splint (52121) movably arranged on the support (3) and having a reset function; and A movable splint (52122) having a reset function and slidably mounted on one side of the positioning splint (52121); It also includes a pushing assembly (5213) which is respectively arranged on the inner side of the bag feeding unit (4), the bag opening mechanism (51) and the sealing unit (8) and is used to control the state adjustment of the clamping claw assembly (5212) on the clamping transfer unit (5) at the corresponding position; The pushing assembly (5213) includes: a support frame (52136) provided on the workbench (1); and Rotating a rotating shaft (52133) provided on the support frame (52136); The support frame (52136) is provided with a first push plate (52132) and a second push plate (52137) for controlling the state adjustment of the positioning clamping plate (52121) and the movable clamping plate (52122) respectively. The rotating shaft (52133) is correspondingly provided with an upper cam mechanism (52134) and a lower cam mechanism (52135) which respectively control the horizontal sliding of the first push plate (52132) and the second push plate (52137) by rotation.

2. A dispensing device for Chinese medicine formula granules according to claim 1, characterized in that: Each adjustment unit (7) is a double-head synchronous blanking adjustment structure; the center distance between two adjacent clamping transfer units (5) is consistent with the center distance between two adjacent adjustment units (7).

3. A dispensing device for Chinese medicine formula granules according to claim 1 or 2, characterized in that: A plurality of the clamping and transferring units (5) are evenly distributed on the conveying mechanism (2).

4. The dispensing device for Chinese medicine granules according to claim 1, characterized in that: It also includes a bag rejection device (6) for rejecting the packaging bag (100) that fails to open. The bag rejection device (6) is located below the bag opening mechanism (51) and includes: First mounting frame (61): a bag removal portion (62) provided on the first mounting frame (61) for clamping a packaging bag (100) that has failed to be opened; Pushing the bag-opening mechanism (52) for opening the packaging bag (100) to a first pushing member (63) separated from the packaging bag (100); and A first power unit (65) for driving the relative movement of the bag removal unit (62) and the lifting and lowering movement of the first pushing member (63); After the packaging bag (100) that fails to open is detected by the detector, the first power unit (65) is driven to start through signal transmission. The first power unit (65) drives the first pushing member (63) to push the bag-supporting mechanism (52) to separate from the packaging bag (100), and at the same time, the bag-removing unit (62) is driven to clamp the packaging bag (100) that fails to open and the bag-removing unit (62) rotates and transmits it downward to complete the bag unloading work.

5. A dispensing device for Chinese medicine formula granules according to claim 4, characterized in that: The first power unit (65) includes: A first driving shaft (651) and a first driven shaft (652) are rotatably mounted on the support (3), wherein the first driving shaft (651) and the first driven shaft (652) are connected to each other via a cam mechanism; and A first driving device (657) drives the first driving shaft (651) to rotate.

6. The dispensing device for Chinese medicine granules according to claim 2, characterized in that: It also includes a bag unloading device (9), which is located below the sealing unit (8) and includes: a second mounting frame (91); Before sealing the packaging bag (100), the bag-supporting mechanism (52) is pushed to a second pushing member (92) separated from the packaging bag (100); a bag unloading portion (93) provided on the second mounting frame (91); and A second power unit (94) is used to drive the bag unloading unit (93) to swing and knock down the sealed packaging bag (100).

7. The dispensing device for Chinese medicine formula granules according to claim 6, characterized in that: The bag unloading unit (93) comprises: A guide member (932) and a driven plate (933) rotatably mounted on the second mounting frame (91); and One end of the unloading member (931) is eccentrically hinged to the driven disc (933) and the other end of the unloading member (931) is movably inserted into the guide member (932).

8. The dispensing device for Chinese medicine granules according to claim 1, characterized in that: The adjustment unit (7) includes: Two sets of bottle head mechanisms (71), wherein the bottle head mechanisms (71) are driven by a quantitative driving device for the Chinese medicine dispensing bottle head to perform quantitative discharging, and the bottom discharge ports (711) of the two sets of the bottle head mechanisms (71) are eccentrically arranged opposite to each other; Two groups of quantitative driving devices for Chinese medicine dispensing bottle heads are arranged along the transmission direction of the external system assembly line; The quantitative driving device for the Chinese medicine dispensing bottle head includes: A driving module (72), the driving module (72) comprising a first transmission assembly (721) and a second transmission assembly (722) that are coaxial and synchronously rotated; and A first adjustment drive mechanism (74) and a second adjustment drive mechanism (75) are coaxially mounted in the adjustment drive seat (73), wherein the first adjustment drive mechanism (74) is meshedly connected with the first transmission assembly (721), and the second adjustment drive mechanism (75) is meshedly connected with the second transmission assembly (722), and the first adjustment drive mechanism (74) and the second adjustment drive mechanism (75) are jointly driven to rotate by the drive module (72).

9. A method for dispensing Chinese medicine granules, the method using the dispensing device for Chinese medicine granules according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: The bag delivery unit (4) sequentially transfers the packaging bags (100) to the clamping transfer unit (5); Step 2: The conveying mechanism (2) drives the clamping and transferring unit (5) to operate, and the clamping and transferring unit (5) sequentially transfers the packaging bag (100) through the bag opening mechanism (51), the adjusting unit (7) and the sealing unit (8) to sequentially complete the bag opening, stretching and shaping, filling and sealing actions, and the bag stretching mechanism (52) always keeps the packaging bag (100) in the stretched and shaped state after the packaging bag (100) is opened until before sealing.

10. The method for preparing Chinese medicine granules according to claim 9, wherein: In the second step, the detector detects the bag opening state of the packaging bag (100), and removes the packaging bag (100) that fails to open via the bag removal device (6).

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