Film feeding and bag making device of bagged Chinese medicine dispensing machine

Abstract

The embodiment of the present invention discloses a film feeding bag making device of a bagged Chinese medicine dispensing machine, comprising a frame, a bag forming device, a film feeding device and a driving device; the bag forming device and the driving device are arranged on the frame, and the film feeding device is arranged in the bag forming device; the bag forming device comprises a bag forming frame and a shaping table, the shaping table is sleeved on the outside of the bag forming frame, and the plastic film passes through the gap between the bag forming frame and the shaping table to form the packaging bag; the film feeding device comprises a screw rod and a top bag sheet, the top bag sheet is arranged at the lower end of the bag forming frame; the driving device is used to drive the screw rod to rotate, and the top bag sheet is driven to move up and down by the screw rod. With the present invention, the feeding of the packaging film is directly determined by the descending distance of the top bag sheet, the film feeding is accurate and reliable, and the size of the produced packaging bags is consistent and the quality is stable.

Description

Technical Field

[0001] The invention relates to a medicine dispensing system, in particular to a film feeding and bag making device of a bagged Chinese medicine dispensing machine. Background Art

[0002] my country has a long history of traditional Chinese medicine culture and rich resources. In recent years, due to the outstanding advantages of traditional Chinese medicine such as good efficacy, few side effects and little environmental pollution, the "traditional Chinese medicine fever" has become popular internationally.

[0003] At present, most of the existing Chinese medicine granule mixing machines in China adopt the box packaging method, which uses manual box placement. The box packaging is inconvenient to carry and has high cost. At present, the single packaging machines on the market mainly use belt or synchronous belt film feeding. The belt or synchronous belt contacts the packaging film to generate friction, driving the packaging film forward. Since the packaging film is relatively smooth and often encounters different resistances, the above transmission method is prone to film jamming, slipping, etc., affecting the stability of film feeding and ultimately affecting the quality of the finished packaging bag. Summary of the invention

[0004] In order to solve the technical problem that the packaging film is difficult to accurately convey during the packaging bag making process, the embodiment of the present invention provides a film conveying and bag making device for a bagged Chinese medicine dispensing machine. The packaging film can be conveyed and formed, completing the key steps of bag making, the film is conveyed accurately and reliably, and the output packaging bags are of uniform size and stable quality.

[0005] In order to solve the above-mentioned technical problems, an embodiment of the present invention provides a film feeding bag making device of a bagged Chinese medicine dispensing machine, comprising a frame, a bag forming device, a film feeding device and a driving device; the bag forming device and the driving device are arranged on the frame, and the film feeding device is arranged in the bag forming device; the bag forming device comprises a bag forming frame and a shaping table, the shaping table is sleeved on the outside of the bag forming frame, and the plastic film passes through the gap between the bag forming frame and the shaping table to form a packaging bag; the film feeding device comprises a screw rod and a top bag piece, and the top bag piece is arranged at the lower end of the bag forming frame; the driving device is used to drive the screw rod to rotate, and drive the top bag piece to move up and down through the screw rod.

[0006] As an improvement of the above-mentioned scheme, the film feeding device also includes a light rod, a slider, a screw mounting part and a sliding sleeve; the sliding sleeve is fixedly arranged on the screw mounting part, the screw is rotatably arranged on the screw mounting part, and the slider is arranged on the screw and can be driven by the screw to move up and down; the light 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.

[0007] As an improvement of the above scheme, the top bag piece includes a bottom top bag piece, a side top bag piece and a shaping piece; the bottom top bag piece has a horizontal straight bottom edge; the side top bag piece is an inverted triangle; the shaping piece is arranged at the upper front and upper rear of the bottom top bag piece.

[0008] As an improvement of the above solution, the bottom top bag sheet is arranged between the left and right side top bag sheets, and the lower tip of the side top bag sheet is lower than the straight bottom edge of the bottom top bag sheet.

[0009] As an improvement of the above solution, the side top bag sheet is arranged to be gradually inclined outward from top to bottom.

[0010] As an improvement of the above solution, a shaping cavity is formed between the bottom and top bag sheets and the shaping sheet.

[0011] As an improvement of the above scheme, the bag forming frame includes a front guide frame and a rear guide column; the front side of the front guide frame is an inverted trapezoid, the rear guide column is arranged at the lower end of the front guide frame, and the rear guide column is a rectangular tube.

[0012] As an improvement of the above solution, an origin induction switch is provided at the upper end of the rear end guide column, and an origin induction switch detection sheet is provided on the sliding block.

[0013] As an improvement of the above solution, the bag forming device further includes a bag forming frame fixing member, and the bag forming frame fixing member is used to fix the bag forming frame on the frame.

[0014] As an improvement of the above scheme, the driving device includes a motor, a first synchronous wheel and a synchronous belt. The motor is arranged on the frame, and its rotating shaft is connected to the first synchronous wheel. The first synchronous wheel drives the screw to rotate through the synchronous belt.

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

[0016] In the process of bag making, this solution uses a film feeding device with a top bag sheet to transport the packaging film. The transportation of the packaging film is directly determined by the descending distance of the top bag sheet. The film feeding is accurate and reliable, and the size of the produced packaging bags is consistent and the quality is stable. The film feeding device is concentrated inside the bag forming device and occupies less space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a film feeding and bag making device of a bagged Chinese medicine preparation machine of the present invention;

[0018] Figure 2 It is a schematic diagram of the structure of the bag forming device, the film feeding device and the driving device of the present invention;

[0019] Figure 3 yes Figure 2A magnified view of part A;

[0020] Figure 4 yes Figure 2 Enlarged view of part B. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution 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 stated that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and are not specific limitations of the present invention.

[0022] like Figure 1 and Figure 2 As shown, a specific embodiment of the present invention provides a film feeding bag making device of a bagged Chinese medicine dispensing machine, comprising 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 comprises a bag forming frame 21 and a shaping table 22, and the shaping table 22 is sleeved on the outside of 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 comprises a screw rod 31 and a top bag piece 32, and the top bag piece 32 is arranged at the lower end of the bag forming frame 21; the driving device 4 is used to drive the screw rod 31 to rotate, and drive the top bag piece 32 to move up and down through the screw rod 31.

[0023] In the bag making process, the film feeding device 3 with the top bag sheet 32 ​​is used to transport the packaging film. The transportation of the packaging film is directly determined by the descending distance of the top bag sheet 32. The film feeding is accurate and reliable. The film feeding device 3 is concentrated inside the bag forming device 2 and occupies less space.

[0024] In order to drive the top bag sheet 32 ​​to move stably, the Figure 3 The film feeding device 3 further comprises a light rod 33, a slider 34, a screw rod mounting part 35 and a sliding sleeve 36; the sliding sleeve 36 is fixedly mounted on the screw rod mounting part 35, the screw rod 31 is rotatably mounted on the screw rod mounting part 35, the slider 34 is mounted on the screw rod 31, and is provided with a nut matched with the screw rod 31, and can be driven by the screw rod 31 to move up and down; the light 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 top bag sheet 32. The driving device 4 comprises a motor 41, a first synchronous wheel 42 and a synchronous belt 43, a second synchronous wheel 37 is provided on the top of the screw rod 31, the motor 41 is mounted on the frame 1, and its rotating shaft is connected to the first synchronous wheel 42, and the first synchronous wheel 42 drives the second synchronous wheel 37 and the screw rod 31 to rotate through the synchronous belt 43.

[0025] The packaging film passes through the bag forming frame 21, is wrapped around the periphery of the bag forming frame 21, is shaped by the outer contour of the bag forming frame 21, and then passes through the gap between the bag forming frame 21 and the shaping table 22 to shape the packaging bag to form a continuous packaging bag shape. A sealing device is provided below the bag forming frame 21 to seal and cut the packaging bag. After the sealing is completed, the top bag sheet 32 ​​of the film feeding device 3 begins to move downward, abuts against the bottom of the sealed packaging film, and pushes the packaging film downward as a whole. During the pushing process, the bottom of the packaging bag is also shaped. This process will directly affect whether the packaging bag after cutting can maintain the expected shape. Therefore, the design of the top bag sheet 32 ​​is particularly important.

[0026] Combination Figure 4 In this solution, the top bag sheet 32 ​​includes a bottom top bag sheet 321, a side top bag sheet 322 and a shaping sheet 323; the bottom top bag sheet 321 has a horizontal straight bottom edge; the side top bag sheet 322 is an inverted triangle; the shaping sheet 323 is arranged at the front upper and rear upper parts of the bottom top bag sheet 321. The side top bag sheet 322 shapes the side edges of the packaging bag to ensure that the opening of the packaging bag is open, and forms certain side edges to shape the shape of the packaging bag. The bottom top bag sheet 321 is used to ensure that the packaging film is pulled down evenly, and one side will not be pulled down too quickly during the pulling process to cause the packaging film to tilt, and to shape the bottom edge of the packaging film to ensure that the bottom edge gradually opens upward from the fit, and cooperates with the side top bag sheet 322 to ensure that the shape of the opening of the formed packaging bag is uniform, which is convenient for subsequent automatic unloading.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] Preferably, an origin induction switch 39 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 39 is triggered by the origin induction switch detection piece 38, and the position of the top bag piece 32 is indirectly monitored.

[0031] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A film feeding and bag making device for a bagged Chinese medicine preparation machine, characterized in that: It comprises a frame, a bag forming device, a film feeding device and a driving device; the bag forming device and the driving device are arranged on the frame, and the film feeding device is arranged in the bag forming device; The bag forming device comprises a bag forming frame and a shaping table, wherein the shaping table is sleeved on the outside of the bag forming frame, and the plastic film passes through the gap between the bag forming frame and the shaping table to form the packaging bag; the film feeding device comprises a screw rod and a top bag sheet, wherein the top bag sheet is arranged at the lower end of the bag forming frame; the driving device is used to drive the screw rod to rotate, and the top bag sheet is driven to move up and down through the screw rod; The film feeding device further comprises a polished rod, a slider, a screw rod mounting part and a sliding sleeve; the sliding sleeve is fixedly mounted on the screw rod mounting part, the screw rod is rotatably mounted on the screw rod mounting part, the sliding sleeve is mounted on the screw rod and can be driven by the screw rod to move up and down; the polished rod is sleeved in the sliding sleeve, one end of which is fixedly connected to the sliding sleeve, and the other end is fixedly connected to the top bag sheet; The top bag piece includes a bottom top bag piece, a side top bag piece and a shaping piece; the bottom top bag piece has a horizontal straight bottom edge; the side top bag piece is an inverted triangle; the shaping piece is arranged at the upper front and upper rear of the bottom top bag piece; The bottom top bag sheet is arranged between the left and right side top bag sheets, and the lower tip of the side top bag sheet is lower than the straight bottom edge of the bottom top bag sheet; The side top bag sheet is gradually tilted outward from top to bottom; A shaping cavity is formed between the bottom and top bag sheets and the shaping sheet.

2. The film feeding and bag making device of the bagged Chinese medicine preparation machine according to claim 1, characterized in that: The bag forming frame comprises a front guide frame and a rear guide column; the front side of the front guide frame is an inverted trapezoid, the rear guide column is arranged at the lower end of the front guide frame, and the rear guide column is a rectangular tube.

3. The film feeding and bag making device of the bagged Chinese medicine preparation machine as claimed in claim 2, characterized in that: An origin induction switch is arranged at the upper end of the rear end guide column, and an origin induction switch detection sheet is arranged on the sliding block.

4. The film feeding and bag making device of the bagged Chinese medicine preparation machine according to claim 1, characterized in that: The bag forming device also includes a bag forming frame fixing piece, and the bag forming frame fixing piece is used to fix the bag forming frame on the frame.

5. The film feeding and bag making device of the bagged Chinese medicine preparation machine according to claim 1, characterized in that: The driving device comprises a motor, a first synchronous wheel and a synchronous belt. The motor is arranged on the frame, and its rotating shaft is connected to the first synchronous wheel. The first synchronous wheel drives the screw rod to rotate through the synchronous belt.

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