Capsule opening and closing device

Abstract

A capsule opening and closing device comprises a capsule carrier and an opening and closing mechanism, the capsule carrier comprises an upper nest plate, a middle nest plate and a lower nest plate, the upper nest plate is provided with a limiting part used for limiting an upper capsule, the middle nest plate is provided with a first positioning hole used for positioning the upper capsule, and the lower nest plate is provided with a second positioning hole used for positioning a lower capsule. The opening and closing mechanism comprises an upper nest plate grabbing piece and a middle nest plate grabbing piece which can ascend and descend. The capsule preparation method comprises the following steps: S1, feeding: transferring a capsule carrier to a positioning part on a mobile platform; s2, filling: an upper nest plate grabbing piece and a middle nest plate grabbing piece descend to grab an upper nest plate and a middle nest plate respectively and then ascend, so that an upper bag is separated from a lower bag, a moving platform drives the lower nest plate to move to the position below a filling device, and the filling device descends to fill the lower bag with medicines; and S3, capsule closing: the mobile platform drives the lower nest plate to return to the opening and closing mechanism, the upper nest plate grabbing piece and the middle nest plate grabbing piece descend, and the capsule closing ejector rod ascends to enable the lower capsule to ascend to be combined with the upper capsule. The mold opening and closing mechanism is simple in structure, low in cost and high in mold opening and closing process efficiency.

Description

Technical Field

[0001] The utility model relates to food and medicine production equipment, in particular to a capsule opening and closing device. Background Art

[0002] Capsules have many advantages and are widely used in the pharmaceutical industry. Capsules contain a fixed amount of drugs with accurate dosages. For some powders or granules that are irritating to the esophagus and gastric mucosa, or drugs that are radioactive, have a bad taste, are easy to volatilize, are easily decomposed by saliva in the mouth, and are easily inhaled into the trachea, capsules can be used to wrap them, which not only protects the medicinal properties of the drugs from being destroyed, but also protects the digestive organs and respiratory tract, ensuring the efficacy of the drugs while preventing drug waste. At present, in the process of capsule pharmaceutical production, semi-automatic mechanisms are usually used to first load the upper and lower capsules of the capsule into the upper and lower plates of the capsule respectively, and then manually fill the drugs and then manually close the capsules to finally produce the finished capsules. Manual operation is inefficient, labor-intensive, and has a high risk of contamination, especially for some radioactive drugs, which pose a greater safety risk to operators.

[0003] Chinese patent document CN 208877333 U discloses a radioactive capsule batch preparation device, which helps to improve the automation level and production efficiency of radioactive capsule preparation. However, the overall structure of the device is very complex, with a large number of parts, and a special robot is required for the mold opening and closing process, resulting in high costs and a cumbersome preparation process. In addition, parts such as the upper mold frame and the lower mold frame are prone to dead corners in cleaning and sterilization. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a capsule opening and closing device with simple structure, low cost and high efficiency in the mold opening and closing process.

[0005] The utility model further provides a capsule preparation method.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A bag opening and closing device comprises a bag carrier and an opening and closing mechanism, wherein the bag carrier comprises an upper nest plate, a middle nest plate and a lower nest plate, wherein the upper nest plate is provided with a limiting portion for limiting the upper bag, the middle nest plate is provided with a first positioning hole for positioning the upper bag, the lower nest plate is provided with a second positioning hole for positioning the lower bag, and the opening and closing mechanism comprises a liftable upper nest plate grasping member and a middle nest plate grasping member.

[0008] As a further improvement of the above technical solution: the upper nest board grabbing piece and the middle nest board grabbing piece are both suction cups, the upper nest board is provided with an avoidance portion for the middle nest board grabbing piece to pass through, and the upper nest board grabbing piece and the middle nest board grabbing piece are arranged on a first lifting drive member; or, the upper nest board grabbing piece and the middle nest board grabbing piece are respectively arranged on a first lifting drive member.

[0009] As a further improvement of the above technical solution: an opening and closing guide structure is provided between the upper nesting plate, the middle nesting plate and the lower nesting plate.

[0010] As a further improvement of the above technical solution: the opening and closing guide structure includes a guide column arranged on the lower nest plate and guide holes arranged on the upper nest plate and the middle nest plate.

[0011] As a further improvement of the above technical solution: it also includes a mobile platform, and a positioning part for positioning the lower nest plate is provided on the mobile platform.

[0012] As a further improvement of the above technical solution: convex parts are provided on two opposite sides of the positioning part, and sliding grooves for cooperating with the convex parts are provided on two opposite sides of the lower nest plate.

[0013] As a further improvement of the above technical solution: a guiding slope is provided on one side of the positioning portion.

[0014] As a further improvement of the above technical solution: a closing mechanism for combining the upper bag and the lower bag is provided below the opening and closing mechanism, the closing mechanism includes at least one closing push rod and a second lifting drive member for driving the closing push rod to rise and fall, the positioning portion is provided with a channel for the closing push rod to pass through, and the second positioning hole is a through hole.

[0015] As a further improvement of the above technical solution: a first step portion is provided in the first positioning hole for preventing the upper capsule from falling, and a second step portion is provided in the second positioning hole for preventing the lower capsule from falling.

[0016] A method for preparing a capsule comprises the following steps:

[0017] S1. Loading: The capsule carrier is transferred to the positioning part on the mobile platform;

[0018] S2, filling: The upper nest plate grabber and the middle nest plate grabber descend to grab the upper nest plate and the middle nest plate respectively and then rise to separate the upper bag from the lower bag. The mobile platform drives the lower nest plate to move under the filling device, and the filling device descends to fill the medicine into the lower bag;

[0019] S3, bag closing: the mobile platform drives the lower nest plate to return to the opening and closing mechanism, the upper nest plate grabbing piece and the middle nest plate grabbing piece descend, and the bag closing push rod rises to make the lower bag rise and combine with the upper bag.

[0020] Compared with the prior art, the advantages of the utility model are:

[0021] The utility model discloses a bag body opening and closing device, wherein the bag body carrier includes an upper nest plate, a middle nest plate and a lower nest plate, the middle nest plate and the lower nest plate are respectively used to position the upper bag and the lower bag so that the upper bag is aligned with the lower bag up and down, the upper nest plate is used to limit the upper bag to prevent the lower bag from lifting upward and excessively shifting upward when the upper bag is closed with the upper bag, the overall structure is simple and the cost is low, which is beneficial to avoiding dead corners for cleaning and sterilization, and the opening and closing process only requires the upper nest plate grasping member and the middle nest plate grasping member to grasp the upper nest plate and the middle nest plate respectively and drive them to rise and fall, which is beneficial to simplify the action process and improve production efficiency.

[0022] The capsule preparation method disclosed by the utility model has high automation degree, simple preparation process and high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front structural view of the bag opening and closing device of the utility model.

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the opening and closing mechanism in the utility model ready to open the bag carrier.

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure after the opening and closing mechanism in the utility model opens the bag carrier.

[0026] Figure 4 It is a schematic diagram of the process of the capsule preparation method of the utility model.

[0027] The symbols in the figure represent:

[0028] 2. Mobile platform; 21. Positioning part; 22. Protrusion; 23. Guide slope; 3. Opening and closing mechanism; 31. Bag closing mechanism; 311. Bag closing push rod; 312. Second lifting drive member; 32. First lifting drive member; 33. Upper nest plate grabbing member; 34. Middle nest plate grabbing member; 4. Filling device; 9. Bag carrier; 91. Upper nest plate; 911. Avoiding part; 912. Limiting part; 92. Middle nest plate; 921. First positioning hole; 93. Lower nest plate; 931. Slide groove; 932. Second positioning hole; 94. Guide column; 95. Guide hole. DETAILED DESCRIPTION

[0029] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "assemble", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] Embodiment 1

[0034] Figures 1 to 3 An embodiment of the capsule opening and closing device of the utility model is shown. The capsule opening and closing device of this embodiment includes a capsule carrier 9 and an opening and closing mechanism 3. The capsule carrier 9 includes an upper nest plate 91, a middle nest plate 92 and a lower nest plate 93. The upper nest plate 91 is provided with a limiting portion 912 for limiting the upper capsule, the middle nest plate 92 is provided with a first positioning hole 921 for positioning the upper capsule, and the lower nest plate 93 is provided with a second positioning hole 932 for positioning the lower capsule. The opening and closing mechanism 3 includes a liftable upper nest plate grasping member 33 and a middle nest plate grasping member 34.

[0035] The bag body opening and closing device of the present embodiment, wherein the bag body carrier includes an upper nest plate 91, a middle nest plate 92 and a lower nest plate 93, the middle nest plate 92 and the lower nest plate 93 are respectively used to position the upper bag and the lower bag so that the upper bag is aligned with the lower bag up and down, the upper nest plate 91 is used to limit the upper bag to prevent the lower bag from lifting upward and excessively shifting upward when the upper bag is closed with the upper bag, the overall structure is simple and the cost is low, which is conducive to avoiding dead corners for cleaning and sterilization, and the opening and closing process only requires the upper nest plate grasping member 33 and the middle nest plate grasping member 34 to grasp the upper nest plate 91 and the middle nest plate 92 respectively and drive them to rise and fall, which is conducive to simplifying the action process and improving production efficiency.

[0036] Further, in this embodiment, the upper nest board grabbing member 33 and the middle nest board grabbing member 34 are both suction cups, and the upper nest board 91 is provided with an avoidance portion 911 for the middle nest board grabbing member 34 to pass through, and the upper nest board grabbing member 33 and the middle nest board grabbing member 34 are arranged on the first lifting drive member 32. The upper nest board grabbing member 33 and the middle nest board grabbing member 34 use suction cups, which can easily grab and release the upper nest board 91 and the middle nest board 92. Of course, in other embodiments, the upper nest board grabbing member 33 and the middle nest board grabbing member 34 can also be mechanisms such as clamps; the upper nest board grabbing member 33 and the middle nest board grabbing member 34 share the first lifting drive member 32, which can achieve synchronous lifting and simplifying the structure. Of course, in other embodiments, the upper nest board grabbing member 33 and the middle nest board grabbing member 34 can also be arranged on a first lifting drive member 32 respectively. Among them, the first lifting drive member 32 can be, for example, a cylinder, an electric cylinder, a lifting slide, etc.

[0037] Furthermore, in this embodiment, an opening and closing guide structure is provided between the upper nesting plate 91, the middle nesting plate 92 and the lower nesting plate 93. By providing the opening and closing guide structure, a guiding function is provided for the lifting process of the middle nesting plate 92 and the upper nesting plate 91 to avoid deviation.

[0038] As a preferred embodiment, the opening and closing guide structure includes a guide column 94 provided on the lower nest plate 93 and a guide hole 95 provided on the upper nest plate 91 and the middle nest plate 92. The cooperation between the guide column 94 and the guide hole 95 is conducive to aligning the middle nest plate 92, the upper nest plate 91 and the lower nest plate 93 up and down, and at the same time provides a guide effect for the lifting process of the middle nest plate 92 and the upper nest plate 91 to avoid deviation.

[0039] Furthermore, in this embodiment, the capsule opening and closing device further includes a mobile platform 2, and a positioning portion 21 is provided on the mobile platform 2 for positioning the lower nesting plate 93. The lower nesting plate 93 can be placed on the positioning portion 21, and then the capsule carrier 9 can be driven by the mobile platform 2 to move between the opening and closing mechanism 3, the filling device 4 and other components, so that the opening and closing mechanism 3, the filling device 4 and other components only need to move up and down, and do not need to move horizontally, which is conducive to simplifying the structure and further reducing costs.

[0040] As a preferred embodiment, convex parts 22 are provided on opposite sides of the positioning part 21, and slide grooves 931 for cooperating with the convex parts 22 are provided on opposite sides of the lower nesting plate 93. Through the cooperation between the slide grooves 931 and the convex parts 22, it is convenient to accurately insert the capsule carrier 9 into the positioning part 21, and prevent the lower nesting plate 93 from being lifted upward during the process of opening and closing the capsule, and the structure is simple and effective.

[0041] As a preferred embodiment, a guiding slope 23 is provided on one side of the positioning portion 21 to facilitate the lower nesting plate 93 to be inserted into the positioning portion 21 along the guiding slope 23 .

[0042] Further, in this embodiment, a capsule closing mechanism 31 for combining the upper capsule and the lower capsule is provided below the opening and closing mechanism 3, and the capsule closing mechanism 31 includes at least one capsule closing push rod 311 and a second lifting driving member 312 for driving the capsule closing push rod 311 to rise and fall, and the positioning portion 21 is provided with a channel (not shown in the figure) for the capsule closing push rod 311 to pass through, and the second positioning hole 932 is a through hole. After the filling is completed, the mobile platform 2 drives the lower nest plate 93 to return to the opening and closing mechanism 3, and the opening and closing mechanism 3 drives the upper nest plate 91 and the middle nest plate 92 to descend to their positions, and then the second lifting driving member 312 drives the capsule closing push rod 311 to rise, and after the capsule closing fixed rod 311 passes through the second positioning hole 932 and the channel of the positioning portion 21, the lower capsule is lifted upward and combined with the upper capsule as a whole, and the limiting portion 912 of the upper nest plate 91 can limit the upper capsule to prevent the upper capsule from excessively shifting upward when the lower capsule is lifted upward and combined with the upper capsule, and the structure is simple, effective, and the action efficiency is high. The second lifting drive component 312 may be, for example, a pneumatic cylinder, an electric cylinder, a lifting slide, or a screw-nut mechanism.

[0043] Furthermore, in this embodiment, a first step portion is provided in the first positioning hole 921 for preventing the upper capsule from falling, and a second step portion is provided in the second positioning hole 932 for preventing the lower capsule from falling. In other words, the first positioning hole 921 and the second positioning hole 932 are both stepped hole structures with a larger upper portion and a smaller lower end, which is beneficial to preventing the upper capsule and the lower capsule from shifting or falling, and the overall structure is simple and effective.

[0044] Embodiment 2

[0045] Figure 4 An embodiment of the capsule preparation method of the utility model is shown. The capsule preparation method of this embodiment includes the following steps:

[0046] S1, loading: the capsule carrier 9 is transferred to the positioning portion 21 on the mobile platform 2 (the lower nest plate 93 in the capsule carrier 9 is moved to the positioning portion 21), specifically as follows Figure 4 (a)

[0047] S2, filling: the upper nest plate grabbing member 33 and the middle nest plate grabbing member 34 descend to grab the upper nest plate 91 and the middle nest plate 92 respectively, and then rise to separate the upper capsule from the lower capsule, and the mobile platform 2 drives the lower nest plate 93 to move to the bottom of the filling device 4 (for example, it can be a pipette or a filling needle, etc.), and the lower capsule moves with the lower nest plate 93 to the bottom of the filling device 4, and the filling device 4 descends to fill the medicine into the lower capsule, as shown in the following figure. Figure 4 (b) and Figure 4 (c)

[0048] S3, closing the bag: the mobile platform 2 drives the lower nesting plate 93 to return to the opening and closing mechanism 3, the upper nesting plate grabbing member 33 and the middle nesting plate grabbing member 34 are lowered, and the closing bag top rod 311 rises to make the lower bag rise and combine with the upper bag. Figure 4 (d) and Figure 4 (e) as shown.

[0049] The capsule preparation method of this embodiment has a high degree of automation, a simple preparation process and high production efficiency.

[0050] Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the art can use the above disclosed technical content to make many possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. A capsule opening and closing device, characterized in that: The invention comprises a bag carrier (9) and an opening and closing mechanism (3), wherein the bag carrier (9) comprises an upper nest plate (91), a middle nest plate (92) and a lower nest plate (93), wherein the upper nest plate (91) is provided with a limiting portion (912) for limiting the position of the upper bag, the middle nest plate (92) is provided with a first positioning hole (921) for positioning the upper bag, and the lower nest plate (93) is provided with a second positioning hole (932) for positioning the lower bag, and the opening and closing mechanism (3) comprises a liftable upper nest plate grasping member (33) and a middle nest plate grasping member (34).

2. The bag opening and closing device according to claim 1, characterized in that: The upper nest board grabbing member (33) and the middle nest board grabbing member (34) are both suction cups, and the upper nest board (91) is provided with an avoidance portion (911) for the middle nest board grabbing member (34) to pass through, and the upper nest board grabbing member (33) and the middle nest board grabbing member (34) are arranged on a first lifting drive member (32); or, the upper nest board grabbing member (33) and the middle nest board grabbing member (34) are respectively arranged on a first lifting drive member (32).

3. The bladder opening and closing device according to claim 1, characterized in that: An opening and closing guide structure is provided between the upper nesting plate (91), the middle nesting plate (92) and the lower nesting plate (93).

4. The bladder opening and closing device according to claim 3, characterized in that: The opening and closing guide structure comprises a guide column (94) provided on the lower nest plate (93) and a guide hole (95) provided on the upper nest plate (91) and the middle nest plate (92).

5. The bladder opening and closing device according to any one of claims 1 to 4, characterized in that: It also comprises a mobile platform (2), on which a positioning portion (21) for positioning the lower nest plate (93) is provided.

6. The bag opening and closing device according to claim 5, characterized in that: The positioning portion (21) is provided with convex portions (22) on two opposite sides, and the lower nest plate (93) is provided with sliding grooves (931) for cooperating with the convex portions (22) on two opposite sides.

7. The bag opening and closing device according to claim 5, characterized in that: A guiding inclined surface (23) is provided on one side of the positioning portion (21).

8. The bag opening and closing device according to claim 5, characterized in that: A capsule closing mechanism (31) for combining the upper capsule and the lower capsule is provided below the opening and closing mechanism (3); the capsule closing mechanism (31) comprises at least one capsule closing push rod (311) and a second lifting drive member (312) for driving the capsule closing push rod (311) to rise and fall; the positioning portion (21) is provided with a passage for the capsule closing push rod (311) to pass through; and the second positioning hole (932) is a through hole.

9. The bladder opening and closing device according to any one of claims 1 to 4, characterized in that: A first step portion for preventing the upper capsule from falling is provided in the first positioning hole (921), and a second step portion for preventing the lower capsule from falling is provided in the second positioning hole (932).

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