A capping device, capping machine and capping method

Abstract

The present invention discloses a capping device, which includes a housing, a linear drive, and a capping head. The linear drive is arranged inside the housing, and the capping head is arranged outside the housing and fixedly connected to the telescopic end of the linear drive. One end of the capping head is provided with a capping cavity, and a capping sleeve is arranged inside the capping cavity. The capping sleeve is fixedly arranged relative to the housing. A capping inclined surface is provided at the opening of the capping cavity. An elastic capping ring is arranged between the capping inclined surface and the capping sleeve, and a floating capping plate is arranged inside the capping sleeve. Also disclosed is a capping machine, which includes a barrel conveying mechanism, a barrel lifting mechanism, and a capping device. The barrel lifting mechanism is arranged below the barrel conveying mechanism, and the capping device is located above the barrel conveying mechanism. The opening of the capping cavity is correspondingly arranged with the lifting end of the barrel lifting mechanism, and a limiting member is arranged at the lifting end of the barrel lifting mechanism. Also disclosed is a capping method, which is carried out by using the capping device, and includes the steps of: alignment; capping; re-capping. The capping device, capping machine, and capping method of the present invention can cap the lid at different positions, improving the capping effect.

Description

Technical Field

[0001] The present invention relates to the technical field of food and drug packaging machinery and equipment, and particularly relates to a capping device, a capping machine and a capping method. Background Art

[0002] Before the drug raw materials are put into production, they need to be placed in a sealed aluminum bucket. The aluminum bucket has a barrel body and a lid that is press-fitted to the barrel body and can be sealed. The connection between the lid and the barrel body is implemented by capping. At present, there are two capping methods for aluminum buckets: rotary knife capping and spring capping. In rotary knife capping, the capping blade rotates at the edge of the bucket lid for capping. This capping method has a good sealing effect, but it will generate a large amount of aluminum chips, causing pollution and being difficult to control and collect.

[0003] For spring capping, it uses a spring to tighten the cap. There is less friction between the spring and the aluminum lid, and less aluminum chips are generated. However, due to the insufficient tightening force of the spring, the capping effect is not good. The capping effect is as shown in Figure 1 If the aluminum lid of the aluminum bucket is capped multiple times, the position of the spring and the aluminum lid does not change, and the spring acts on the same position of the aluminum lid multiple times, which is of no help in improving the capping effect.

[0004] Therefore, there is an urgent need for a spring capping machine with a good capping effect at present. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a capping device, a capping machine and a capping method that can cap at different positions of the lid and improve the capping effect.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A capping device includes a housing, a linear drive and a capping head. The linear drive is arranged inside the housing, the capping head is arranged outside the housing and fixedly connected to the telescopic end of the linear drive. A capping cavity is provided at one end of the capping head far from the linear drive. A capping sleeve is arranged inside the capping cavity. The capping sleeve is fixedly arranged relative to the housing. A capping inclined surface is provided at the opening of the capping cavity. An elastic capping ring that can abut against the capping sleeve and slide along the capping inclined surface is arranged between the capping inclined surface and the capping sleeve. A capping plate that can float axially along the capping sleeve is arranged inside the capping sleeve.

[0008] As a further improvement of the above technical solution:

[0009] A guide rod is arranged on the housing. A floating rod is arranged on one side of the capping plate far from the opening of the capping cavity. The guide rod extends into the capping cavity and is movably sleeved with the floating rod. An elastic member is arranged between the guide rod and the floating rod.

[0010] The outer shell is provided with fixing columns, the capping head is slidably sleeved on the fixing columns, and the fixing columns extend into the capping cavity and are fixedly connected to the gland sleeve.

[0011] The inner end of the gland sleeve is provided with an end wall, and the fixing column is fixedly connected to the end wall.

[0012] The fixing column and the end wall are connected by screws.

[0013] The capping head is provided with a connecting column, the outer shell is provided with a through hole, and the connecting column is movably inserted through the through hole and connected to the telescopic end of a linear drive.

[0014] A chip extraction sleeve is sleeved outside the capping head on the outer shell, and the chip extraction sleeve is provided with a feed port at a position corresponding to the capping cavity.

[0015] The chip extraction sleeve is provided with a chip extraction port.

[0016] A capping machine includes a barrel conveying mechanism, a barrel lifting mechanism, and the above-mentioned capping device. The barrel lifting mechanism is arranged below the barrel conveying mechanism, the capping device is located above the barrel conveying mechanism, the opening of the capping cavity is correspondingly arranged with the lifting end of the barrel lifting mechanism, and the lifting end of the barrel lifting mechanism is provided with a limiting member.

[0017] A capping method is carried out by using the above-mentioned capping device, and includes the following steps:

[0018] S1. Alignment: Vertically align the barrel with the lid with the capping cavity of the capping device, and the barrel and / or the capping device act until the lid abuts against the pressing cover plate.

[0019] S2. Capping: The linear drive makes the capping head rise. Under the action of the capping inclined surface and the gland sleeve, the elastic capping ring radially contracts, and the peripheral wall of the lid is tightly capped on the barrel.

[0020] S3. Re-capping: The barrel and / or the capping device act again to change the floating amount of the pressing cover plate, so that the position of the lid relative to the elastic capping ring changes. Repeat step S2 to perform re-capping, so that the elastic capping ring forms multiple capping marks at different positions on the peripheral wall of the lid.

[0021] Compared with the prior art, the advantages of the present invention are as follows:

[0022] The capping process of the capping device of the present invention: In the first step, the barrel with the lid is vertically aligned with the capping cavity of the capping device, and the barrel and / or the capping device act until the lid abuts against the pressure cover plate. In the second step, the linear drive causes the capping head to rise. Under the action of the capping inclined surface and the capping sleeve, the elastic capping ring radially contracts, and the peripheral wall of the lid is tightly rolled onto the barrel. At this time, a rolling mark is formed on the peripheral wall of the lid, as shown in the figure. In the third step, the barrel and / or the capping device act again to change the floating amount of the pressure cover plate, so that the position of the lid relative to the elastic capping ring changes. Repeat the second step for re-capping, so that the elastic capping ring forms multiple rolling marks at different positions on the peripheral wall of the lid, as shown in the figure, and two rolling marks are formed on the peripheral wall of the lid. Of course, by repeating the third step, a third or more rolling marks can also be formed to improve the firmness of the combination between the lid and the barrel, that is, improve the capping effect. And the linear drive is arranged inside the housing to avoid the influence of the linear drive on the capping environment. This capping device can cap the lid at different positions and improve the capping effect.

[0023] For the capping device of the present invention, since chips may be generated during the capping process, the chip extraction sleeve can prevent the chips from falling out, thereby avoiding adverse effects on the capping environment.

[0024] The capping process of the capping machine of the present invention: In the first step, the barrel with the lid is conveyed by the barrel conveying mechanism to the capping station below the capping device, so that the barrel is vertically aligned with the capping cavity of the capping device. In the second step, the barrel lifting mechanism lifts the lid on the barrel into the capping cavity and makes the lid abut against the pressure cover plate. In the third step, the linear drive causes the capping head to rise. Under the action of the capping inclined surface and the capping sleeve, the elastic capping ring radially contracts, and the peripheral wall of the lid is tightly rolled onto the barrel. At this time, a rolling mark is formed on the peripheral wall of the lid. In the fourth step, the barrel lifting mechanism continues to lift the barrel, so that the lid further rises under the action of overcoming the abutting pressure of the pressure cover plate, thereby changing the position of the lid relative to the elastic capping ring. Repeat the third step for re-capping, so that the elastic capping ring forms multiple rolling marks at different positions on the peripheral wall of the lid, as shown in the figure, and two rolling marks are formed on the peripheral wall of the lid. Of course, by repeating the fourth step, a third or more rolling marks can also be formed to improve the firmness of the combination between the lid and the barrel, that is, improve the capping effect. This capping machine can cap the lid at different positions and improve the capping effect.

[0025] The capping method of the present invention can cap the lid at different positions, form multiple rolling marks, and improve the firmness of the combination between the lid and the barrel, that is, improve the capping effect. Description of the Drawings

[0026] Figure 1 It is a schematic diagram of the capping effect of the existing spring-type capping.

[0027] Figure 2 It is a cross-sectional structural schematic diagram of the capping device of the present invention at a capping position.

[0028] Figure 3 is Figure 2 The enlarged view of part A in

[0029] Figure 4 It is the schematic cross-sectional structure diagram of the capping device of the present invention at another capping position.

[0030] Figure 5 is Figure 4 The enlarged view of part B in

[0031] Figure 6 It is the schematic diagram of the capping effect of the capping device of the present invention.

[0032] Figure 7 It is the schematic structural diagram of another embodiment of the capping device of the present invention.

[0033] Figure 8 It is the schematic three-dimensional structure diagram of the capping machine of the present invention.

[0034] Figure 9 It is the schematic front view structure diagram of the capping machine of the present invention.

[0035] Figure 10 It is the schematic side view structure diagram of the capping machine of the present invention.

[0036] Each label in the figure represents:

[0037] 1. Outer shell; 11. Guide rod; 12. Fixed column; 13. Through hole; 2. Linear drive; 14. Chip extraction sleeve; 15. Feeding port; 16. Chip extraction port; 3. Capping head; 31. Capping cavity; 32. Capping inclined surface; 33. Connecting column; 4. Capping sleeve; 41. End wall; 5. Elastic capping ring; 6. Capping plate; 61. Floating rod; 7. Elastic member; 8. Barrel conveying mechanism; 9. Barrel jacking mechanism; 91. Limiting member. Detailed implementation mode

[0038] The present invention will be further described in detail below with reference to the accompanying drawings of the specification and specific embodiments.

[0039] Embodiment 1:

[0040] Figures 1 to 7An embodiment of the capping device of the present invention is shown. The capping device includes a housing 1, a linear drive 2, and a capping head 3. The linear drive 2 is disposed inside the housing 1, and the capping head 3 is disposed outside the housing 1 and fixedly connected to the telescopic end of the linear drive 2. A capping cavity 31 is provided at one end of the capping head 3 away from the linear drive 2. A gland sleeve 4 is provided inside the capping cavity 31. The gland sleeve 4 is fixedly arranged relative to the housing 1. A capping inclined surface 32 is provided at the opening of the capping cavity 31. An elastic capping ring 5 that can abut against the gland sleeve 4 and slide along the capping inclined surface 32 is provided between the capping inclined surface 32 and the gland sleeve 4. A gland plate 6 that can float axially along the gland sleeve 4 is provided inside the gland sleeve 4.

[0041] The capping process of this capping device: First step, vertically align the barrel with the lid with the capping cavity 31 of the capping device. The barrel and / or the capping device act (the barrel and the capping device approach relatively vertically, so that the lid on the barrel is inserted into the capping cavity 31 through the opening of the capping cavity 31) until the lid abuts against the gland plate 6; Second step, the linear drive 2 raises the capping head 3. Under the action of the capping inclined surface 32 and the gland sleeve 4, the elastic capping ring 5 radially contracts, and the peripheral wall of the lid is tightened on the barrel. At this time, a capping mark is formed on the peripheral wall of the lid, as Figure 6 shown; Third step, the barrel and / or the capping device act again (the barrel and the capping device approach further under the action of overcoming the abutting pressure of the gland plate 6) to change the floating amount of the gland plate 6, so that the position of the lid relative to the elastic capping ring 5 changes. Repeat the second step for re-capping, so that the elastic capping ring 5 forms multiple capping marks at different positions on the peripheral wall of the lid, as Figure 6 shown, and two capping marks are formed on the peripheral wall of the lid. Of course, by repeating the third step, a third or more capping marks can also be formed, improving the firmness of the combination of the lid and the barrel, that is, improving the capping effect. And, the linear drive 2 is disposed inside the housing 1, avoiding the influence of the linear drive 2 on the capping environment. This capping device can cap the lid at different positions, improving the capping effect.

[0042] In this embodiment, as Figure 3 and Figure 5 shown, a guide rod 11 is provided on the housing 1. A floating rod 61 is provided on one side of the gland plate 6 away from the opening of the capping cavity 31. The guide rod 11 extends into the capping cavity 31 and is movably sleeved with the floating rod 61. An elastic member 7 is provided between the guide rod 11 and the floating rod 61. Specifically, the guide rod 11 is vertically arranged, the floating rod 61 is coaxial with the guide rod 11, and the two slide relative to each other axially. The gland plate 6 is perpendicular to the floating rod 61. Under the guiding action of the guide rod 11, the gland plate 6 can only float vertically up and down. The elastic member 7 abuts tightly between the guide rod 11 and the floating rod 61, providing a floating reaction force for the gland plate 6, so that the gland plate 6 cannot limit the adjustment of the capping position of the lid, and can press tightly on the top surface of the lid during capping, improving the stability of capping.

[0043] In this embodiment, as shown in Figure 3 and Figure 5 , a fixing post 12 is provided on the outer shell 1, and the capping head 3 is slidably sleeved on the fixing post 12. The fixing post 12 extends into the capping cavity 31 and is fixedly connected to the gland sleeve 4. Specifically, the fixing post 12 is vertically arranged, which plays a guiding role in the lifting movement of the capping head 3 and improves the stability of capping by the capping head 3.

[0044] In this embodiment, an end wall 41 is provided at the inner end of the gland sleeve 4, and the fixing post 12 is fixedly connected to the end wall 41. The inner end of the gland sleeve 4 is the top end as shown in Figure 3 , and the fixing post 12 movably penetrates through the end wall 41.

[0045] In this embodiment, the fixing post 12 and the end wall 41 are connected by screws. That is, the gland sleeve 4 is installed on the fixing post 12 by screws, which is convenient for disassembly and assembly.

[0046] In this embodiment, as shown in Figure 2 and Figure 4 , a connecting post 33 is provided on the capping head 3, and a through hole 13 is provided on the outer shell 1. The connecting post 33 movably penetrates through the through hole 13 and is connected to the telescopic end of the linear drive 2. That is, only the telescopic end of the linear drive 2 extends out of the outer shell 1 through the through hole 13, which improves the sealing effect of the outer shell 1 on the linear drive 2 and further prevents the linear drive 2 from affecting the capping environment. For example, if the linear drive 2 is a cylinder, the cylinder may leak air during operation, which will have an adverse impact on the capping environment.

[0047] Embodiment 2:

[0048] Figure 7 Another embodiment of the capping device of the present invention is shown. The structure of this embodiment is basically the same as that of Embodiment 1, and the difference is only that: a chip extraction sleeve 14 is sleeved outside the capping head 3 on the outer shell 1, and a feeding port 15 is provided at the position of the chip extraction sleeve 14 corresponding to the capping cavity 31. Since chips may be generated during the capping process, the chip extraction sleeve 14 can prevent the chips from falling out, thereby avoiding adverse effects on the capping environment. The opening direction of the capping cavity 31 corresponds to the feeding port 15 for inserting the opening part of the barrel body.

[0049] In this embodiment, a chip extraction port 16 is provided on the chip extraction sleeve 14. During the processing, a chip extraction device is connected to the chip extraction port 16 to timely extract the chips in the chip extraction sleeve 14.

[0050] Embodiment 3:

[0051] Figures 8 to 10An embodiment of the capping machine of the present invention is shown. The capping machine includes a barrel conveying mechanism 8, a barrel lifting mechanism 9, and the capping device of Embodiment 1. The barrel lifting mechanism 9 is arranged below the barrel conveying mechanism 8, and the capping device is located above the barrel conveying mechanism 8. The opening of the capping cavity 31 is correspondingly arranged with the lifting end of the barrel lifting mechanism 9, and a limiting member 91 is provided at the lifting end of the barrel lifting mechanism 9.

[0052] The capping process of this capping machine: First step, the barrel with the lid is conveyed by the barrel conveying mechanism 8 to the capping station below the capping device, so that the barrel is vertically aligned with the capping cavity 31 of the capping device; Second step, the barrel lifting mechanism 9 lifts the lid on the barrel into the capping cavity 31 and makes the lid abut against the pressing cover plate 6; Third step, the linear drive 2 makes the capping head 3 rise. Under the action of the capping inclined surface 32 and the capping sleeve 4, the elastic capping ring 5 radially contracts, and the peripheral wall of the lid is tightly rolled on the barrel. At this time, a rolling mark is formed on the peripheral wall of the lid; Fourth step, the barrel lifting mechanism 9 continues to lift the barrel, so that the lid further rises under the action of overcoming the abutting pressure of the pressing cover plate 6, thereby changing the position of the lid relative to the elastic capping ring 5. Repeat the third step for re-capping, so that the elastic capping ring 5 forms multiple rolling marks at different positions on the peripheral wall of the lid. As Figure 6 shown, two rolling marks are formed on the peripheral wall of the lid. Of course, by repeating the fourth step, a third or more rolling marks can also be formed to improve the firmness of the combination of the lid and the barrel, that is, improve the capping effect. This capping machine can perform capping at different positions of the lid to improve the capping effect.

[0053] There are multiple limiting members 91 at the lifting end of the barrel lifting mechanism 9, which are arranged at intervals around the center of the lifting end of the barrel lifting mechanism 9 to protect the barrel on the outer periphery of the bottom of the barrel when lifting the barrel. In order to adapt to barrels of different sizes, the limiting member 91 can be set as an adjustable type.

[0054] Embodiment 4:

[0055] A capping method is carried out by using the capping device of Embodiment 1, and includes the following steps:

[0056] S1. Alignment: Vertically align the barrel with the lid with the capping cavity 31 of the capping device, and the barrel and / or the capping device act until the lid abuts against the pressing cover plate 6;

[0057] S2. Capping: The linear drive 2 makes the capping head 3 rise. Under the action of the capping inclined surface 32 and the capping sleeve 4, the elastic capping ring 5 radially contracts, and the peripheral wall of the lid is tightly rolled on the barrel;

[0058] S3. Re-capping: The barrel and / or the capping device act again to change the floating amount of the pressing cover plate 6, so that the position of the lid relative to the elastic capping ring 5 changes. Repeat step S2 for re-capping, so that the elastic capping ring 5 forms multiple rolling marks at different positions on the peripheral wall of the lid.

[0059] This capping method can cap the lid at different positions to form multiple capping marks, improving the firmness of the combination between the lid and the barrel body, that is, improving the capping effect.

[0060] Although the present invention has been disclosed above in preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of the present invention. 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 shall fall within the scope of protection of the technical solution of the present invention.

Claims

1. A capping device, characterized in that: It includes a housing (1), a linear drive (2) and a capping head (3). The linear drive (2) is arranged inside the housing (1), and the capping head (3) is arranged outside the housing (1) and fixedly connected to the telescopic end of the linear drive (2). One end of the capping head (3) far from the linear drive (2) is provided with a capping cavity (31). A capping sleeve (4) is arranged inside the capping cavity (31). The capping sleeve (4) is fixedly arranged relative to the housing (1). A capping inclined surface (32) is arranged at the opening of the capping cavity (31). An elastic capping ring (5) that can abut against the capping sleeve (4) and slide along the capping inclined surface (32) is arranged between the capping inclined surface (32) and the capping sleeve (4). A capping plate (6) that can float axially along the capping sleeve (4) is arranged inside the capping sleeve (4); A guide rod (11) is arranged on the housing (1). A floating rod (61) is arranged on one side of the capping plate (6) far from the opening of the capping cavity (31). The guide rod (11) extends into the capping cavity (31) and is movably sleeved with the floating rod (61). An elastic member (7) is arranged between the guide rod (11) and the floating rod (61).

2. The capping device according to claim 1, wherein: A fixing column (12) is arranged on the housing (1). The capping head (3) is slidably sleeved on the fixing column (12). The fixing column (12) extends into the capping cavity (31) and is fixedly connected to the capping sleeve (4).

3. The capping device according to claim 2, characterized in that: An end wall (41) is arranged at the inner end of the capping sleeve (4). The fixing column (12) is fixedly connected to the end wall (41).

4. The capping device according to claim 3, characterized in that: The fixing column (12) and the end wall (41) are connected by screws.

5. The capping device according to any one of claims 1 to 4, characterized in that: A connecting column (33) is arranged on the capping head (3). A through hole (13) is arranged on the housing (1). The connecting column (33) movably passes through the through hole (13) and is connected to the telescopic end of the linear drive (2).

6. The capping device according to any one of claims 1 to 4, characterized in that: A chip extraction sleeve (14) is sleeved outside the capping head (3) on the housing (1). A material inlet (15) is arranged on the chip extraction sleeve (14) corresponding to the position of the capping cavity (31).

7. The capping device according to claim 6, wherein: A chip extraction port (16) is arranged on the chip extraction sleeve (14).

8. A capping machine, characterized in that: It includes a barrel conveying mechanism (8), a barrel lifting mechanism (9) and the capping device according to any one of claims 1 to 7. The barrel lifting mechanism (9) is arranged below the barrel conveying mechanism (8). The capping device is located above the barrel conveying mechanism (8). The opening of the capping cavity (31) is correspondingly arranged with the lifting end of the barrel lifting mechanism (9). A limiting member (91) is arranged at the lifting end of the barrel lifting mechanism (9).

9. A capping method, characterized in that, Using the capping device according to any one of claims 1 to 7, it includes the following steps: S1. Alignment: Vertically align the barrel with the lid with the capping cavity (31) of the capping device. The barrel and / or the capping device act until the lid abuts against the capping plate (6). S2. Capping: The linear drive (2) makes the capping head (3) rise. Under the action of the capping inclined surface (32) and the capping sleeve (4), the elastic capping ring (5) radially contracts, and the peripheral wall of the lid is tightly capped on the barrel. S3. Re-capping: The barrel body and / or the capping device act again to change the floating amount of the pressing cover plate (6), so as to change the position of the lid relative to the elastic capping ring (5), repeat step S2 for re-capping, and make the elastic capping ring (5) form multiple rolling marks at different positions on the circumferential wall of the lid.

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