Cap screwing device and linear filling equipment

Abstract

The utility model relates to the technical field of cosmetic equipment, and discloses a cap screwing device and linear filling equipment. The bottle clamping mechanisms are arranged on the two sides of the machine base, each bottle clamping mechanism comprises two installation parts, two connecting rods and two clamping parts, the two installation parts are installed on the two sides of the machine base respectively, the connecting rods are arranged on the inner sides of the installation parts, the clamping parts are arranged on the other sides of the connecting rods, and the two clamping parts are arranged on the two sides of the machine base respectively. The clamping part comprises a plurality of clamping blocks which are transversely connected, and the plurality of clamping blocks are connected in a hinged mode; the rack is arranged on one side of the bottle clamping mechanism; the cap screwing rotating head is arranged above the bottle clamping mechanism and connected with the machine base through the machine frame. According to the embodiment of the utility model, one bottle clamping mechanism can be used for products of various specifications, the bottle clamping mechanism does not need to be replaced, the structure is simple, so that the operation in the adjusting process is simple, the production cost can be saved, and the production working efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cosmetic equipment, in particular to a capping device and linear filling equipment. Background Art

[0002] At present, filling equipment can be used in the production process of related products in the fields of daily chemicals, medicine, food, etc. Its working process is to fill different contents into the filling bottles, and then screw the caps on the filling bottles to seal them.

[0003] There are various specifications of filled products, and the required filling liquid content is also different, so different sizes of filling bottles are needed to accommodate the filling contents.

[0004] However, the clamping device arranged below the capping device in the existing filling equipment is only applicable to products of the same specification. If products of other specifications are used, the clamping device needs to be replaced. Utility Model Content

[0005] The utility model provides a capping device and a linear filling device, which can achieve the purpose of clamping products of various specifications.

[0006] In order to achieve the above object, the utility model provides a cap screwing device, comprising:

[0007] Machine base;

[0008] A bottle clamping mechanism is arranged on both sides of the machine base, the bottle clamping mechanism comprises: two mounting parts, two connecting rods and two clamping parts, the two mounting parts are respectively mounted on both sides of the machine base, the connecting rod is arranged on the inner side of the mounting part, the clamping part is arranged on the other side of the connecting rod, the clamping part comprises a plurality of clamping blocks connected transversely, and the connection mode between adjacent clamping blocks is hinged;

[0009] A frame arranged on one side of the bottle clamping mechanism;

[0010] A capping rotating head is arranged above the bottle clamping mechanism and connected to the machine base through the machine frame.

[0011] Furthermore, the clamping portion further comprises a fixing plate, the fixing plate is connected to the connecting rod, and the other side of the fixing plate is connected to the clamping block.

[0012] Furthermore, hinged parts are provided on both sides of the clamping block, the two hinged parts provided on one side of the clamping block are outer hinged plates, and the two hinged parts provided on the other side of the clamping block are inner hinged plates, and the two inner hinged plates of one clamping block are respectively fitted on the inner sides of the two outer hinged plates of the adjacent clamping block.

[0013] Furthermore, the outer hinge plate is provided with a first mounting hole, the inner hinge plate is provided with a second mounting hole, and the hole diameter of the first mounting hole is consistent with the hole diameter of the second mounting hole.

[0014] Furthermore, the clamping part also includes an elastic member, which is installed in the two inner hinge plates and the two outer hinge plates; the elastic member includes a pushing part, a spring and two protrusions, the two protrusions are respectively arranged at the two ends of the pushing part, the spring is arranged in the middle of the pushing part, and the two ends of the spring are respectively connected to the two protrusions, the protrusions are installed in the second mounting hole and the first mounting hole, and the pushing part is in abutment with the inner sides of the two inner hinge plates.

[0015] Furthermore, the distance between two adjacent clamping blocks is s, the thickness of the clamping block is t, and the ratio of s:t is 0.5-1.

[0016] Furthermore, the number of the clamping blocks in a clamping portion is three or more.

[0017] Furthermore, the two mounting parts are symmetrically arranged on both sides of the machine base, the upper parts of the two mounting parts are provided with through holes, the two through holes are arranged opposite to each other, and the connecting rod is arranged in the through holes.

[0018] Furthermore, an adjustment hole is provided at the lower portion of the mounting portion along the vertical direction.

[0019] The second aspect of the utility model provides a linear filling device, comprising a conveying device, a filling device and any one of the above-mentioned capping devices, wherein the conveying device is arranged on the base of the capping device, the filling device is arranged on the conveying device, and the filling device is arranged on one side of the capping device.

[0020] Compared with the prior art, the capping device and linear filling equipment of the utility model embodiment have the following beneficial effects: a bottle clamping mechanism is arranged under the capping rotating head of the capping device, and the clamping part of the bottle clamping mechanism is a plurality of laterally hinged clamping blocks, and the shape formed by connecting the plurality of clamping blocks can be changed according to products of different specifications, and one bottle clamping mechanism can be used for filling bottle products of various specifications without replacing the bottle clamping mechanism, and the simple structure makes the operation simple during the adjustment process, which can save production costs and improve production work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the cap screwing device in the embodiment of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the bottle clamping mechanism in the embodiment of the utility model without adjusting the angle between the clamping blocks;

[0023] Figure 3 It is a structural schematic diagram of the bottle clamping mechanism in the embodiment of the utility model for adjusting the angle between the clamping blocks;

[0024] Figure 4 It is a schematic diagram of the structure of both sides of the clamping block in the embodiment of the utility model;

[0025] Figure 5 It is a schematic diagram of the structure of the elastic member in the embodiment of the utility model;

[0026] Figure 6 It is a schematic cross-sectional structure diagram of an elastic member in an embodiment of the utility model;

[0027] Figure 7 It is a schematic diagram of the structure of the connection of two clamping blocks in an embodiment of the utility model from a top view;

[0028] Figure 8 It is a structural schematic diagram of a linear filling device in an embodiment of the utility model;

[0029] In the figure, 1. capping device; 2. machine base; 3. bottle clamping mechanism; 31. mounting portion; 311. through hole; 312. adjusting hole; 32. connecting rod; 33. clamping portion; 331. clamping block; 332. fixing plate; 333. outer hinge plate; 3331. first mounting hole; 334. inner hinge plate; 3341. second mounting hole; 335. elastic member; 3351. push portion; 3352. convex portion; 3353. spring; 4. machine frame; 5. capping rotating head; 6. conveying device; 7. filling device. DETAILED DESCRIPTION

[0030] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements and numerical values ​​of the components and steps described in these embodiments do not limit the scope of the present invention.

[0031] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0032] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0033] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0034] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0035] See also Figure 1 , Figure 2 and Figure 3 As shown, a cap screwing device 1 of a preferred embodiment of the utility model comprises:

[0036] Base 2;

[0037] A bottle clamping mechanism 3 is arranged on both sides of the machine base 2, and the bottle clamping mechanism 3 includes: two mounting parts 31, two connecting rods 32 and two clamping parts 33. The two mounting parts 31 are respectively mounted on both sides of the machine base 2, the connecting rod 32 is arranged on the inner side of the mounting part 31, and the other side of the connecting rod 32 is provided with the clamping part 33. The clamping part 33 includes a plurality of horizontally connected clamping blocks 331, and the connection between adjacent clamping blocks 331 is hinged;

[0038] A frame 4 disposed on one side of the bottle clamping mechanism 3;

[0039] A capping rotating head 5 is arranged above the bottle clamping mechanism 3 and connected to the machine base 2 through the machine frame 4 .

[0040] Specifically, the base 2 is a pedestal for installing various devices and equipment. The base 2 can provide fixed support for various devices and equipment. Baffles are also provided on both sides of the long side direction of the base 2.

[0041] Specifically, the bottle clamping mechanisms 3 are respectively arranged on both sides of the machine base 2, and the bottle clamping mechanisms 3 on both sides are arranged opposite to each other. When in use, the bottle clamping mechanisms 3 on both sides start to work at the same time, and the bottle clamping mechanisms 3 on each side include a mounting portion 31, a connecting rod 32 and a clamping portion 33: the mounting portion 31 is installed on the baffle of the machine base 2, so that the bottle clamping mechanism 3 can be fixedly arranged on the machine base 2; the connecting rod 32 is installed on the upper part of the mounting portion 31, and the connecting rod 32 connects the mounting portion 31 with the clamping portion 33; the clamping portion 33 is a component that directly contacts the filled product, and its function is to clamp the outer side of the filled product to fix the position of the filled product, and fix the position of the filled product so that it does not rotate with the rotation of the capping rotating head 5, so as to facilitate the capping operation. The clamping part 33 includes a plurality of clamping blocks 331 connected transversely, and the clamping blocks 331 are connected by hinges. The hinged connection mode allows the clamping blocks 331 to rotate. The rotation of the plurality of clamping blocks 331 changes the overall shape of the clamping part 33. Different shapes of the clamping part 33 can be used for filling products of various filling specifications. For example, it can be used for various prismatic filling products, and it can also be used for cylindrical filling products. The size of the filling products can also be changed.

[0042] Specifically, the frame 4 is arranged on one side of the bottle clamping mechanism 3, and can be arranged on any side of the bottle clamping mechanism 3. The frame 4 is a vertically arranged column structure; the capping rotating head 5 is installed on the frame 4 and then arranged above the bottle clamping mechanism 3. The axis position of the capping rotating head 5 and the axis position of the bottle clamping mechanism 3 are on the same vertical line. Only in this way can the capping rotating head 5 and the bottle clamping mechanism 3 act together on a filled product.

[0043] In an optional embodiment of the present invention, the clamping portion 33 further includes a fixing plate 332 , the fixing plate 332 is connected to the connecting rod 32 , and the other side of the fixing plate 332 is connected to the clamping block 331 .

[0044] Specifically, the fixed plate 332 in the bottle clamping mechanism 3 is used to fix the position of the clamping block 331 and connect the clamping block 331 to the connecting rod 32. The setting of the fixed plate 332 provides a support point for the clamping block 331. The rotation of multiple clamping blocks 331 to generate the deformation of the entire clamping block 331 is based on the fact that some of the clamping blocks 331 are fixed on the fixed plate 332.

[0045] In this embodiment, a clamping block 331 is provided on the fixing plate 332 , and the clamping block 331 is installed on the fixing plate 332 by fasteners. When installing other clamping blocks 331 , they can be connected to the clamping block 331 provided on the fixing plate 332 .

[0046] See also Figure 4 As shown, in an optional embodiment of the utility model, hinges are provided on both sides of the clamping block 331, the two hinges provided on one side of the clamping block 331 are outer hinge plates 333, and the two hinges provided on the other side of the clamping block 331 are inner hinge plates 334, and the two inner hinge plates 334 of one clamping block 331 are respectively fitted on the inner sides of the two outer hinge plates 333 of the adjacent clamping block 331.

[0047] Specifically, one clamping block 331 is provided with four hinge plates, one side of which is provided with two outer hinge plates 333, and the other side of which is provided with two inner hinge plates 334. The two outer hinge plates 333 are respectively provided at positions near the upper and lower bottom surfaces of the side surface of the clamping block 331, and the two inner hinge plates 334 are provided at the height position inside the two outer hinge plates 333. When the two clamping blocks 331 are installed, the inner hinge plate 334 of one clamping block 331 is engaged with the outer hinge plate 333 of the other clamping block 331, that is, the outer side surface of the inner hinge plate 334 of one clamping block 331 is in contact with the inner side surface of the outer hinge plate 333 of the other clamping block 331 during installation.

[0048] In an optional embodiment of the present invention, the outer hinge plate 333 is provided with a first mounting hole 3331 , and the inner hinge plate 334 is provided with a second mounting hole 3341 , and the aperture of the first mounting hole 3331 is consistent with the aperture of the second mounting hole 3341 .

[0049] Specifically, the mounting hole in the first mounting hole 3331 of the outer hinge plate 333 is consistent in shape and size with the second mounting hole 3341 of the inner hinge plate 334 , and columns of the same specification can be inserted into the outer hinge plate 333 and the inner hinge plate 334 at the same time.

[0050] See also Figure 5 and Figure 6 As shown, in an optional embodiment of the utility model, the clamping portion 33 also includes an elastic member 335, and the elastic member 335 is installed in the two inner hinge plates 334 and the two outer hinge plates 333; the elastic member 335 includes a push portion 3351, a spring 3353 and two protrusions 3352, the two protrusions 3352 are respectively arranged at the two ends of the push portion 3351, the spring 3353 is arranged in the middle of the push portion 3351, and the two ends of the spring 3353 are respectively connected to the protrusions 3352, the protrusions 3352 are installed in the second mounting hole 3341 and the first mounting hole 3331, and the push portion 3351 is in abutment with the inner sides of the two inner hinge plates 334.

[0051] Specifically, the elastic member 335 is in the shape of a column with upper and lower ends protruding in the vertical direction, and the shapes of the upper and lower ends are consistent, and these two parts are convex parts 3352. The height of the convex part 3352 is consistent with the height and height of the second mounting hole 3341 of the inner hinge plate 334 and the first mounting hole 3331 of the outer hinge plate 333, and the cross-sectional area of ​​the convex part 3352 is consistent with the aperture of the second mounting hole 3341 of the inner hinge plate 334 and the first mounting hole 3331 of the outer hinge plate 333. The convex part 3352 configured in this way can be connected and contacted with the inner hinge plate 334 and the outer hinge plate 333 at the same time.

[0052] Specifically, the cross section of the push portion 3351 in the middle of the elastic member 335 is larger than the cross section of the upper and lower protrusions 3352; the spring 3353 is arranged in the middle of the push portion 3351, and the two ends of the spring 3353 are connected to the upper and lower protrusions 3352. The push portion 3351 and the spring 3353 arranged in this way can generate an elastic thrust on the outer hinge plate 333 and the inner hinge plate 334, so that the inner hinge plate 334 tends to the outer hinge plate 333, thereby preventing the inner hinge plate 334 and the outer hinge plate 333 from rotating relative to each other, so that the rotation angle between the two adjacently installed clamping blocks 331 is fixed, thereby fixing the overall shape of the clamping portion 33, and preventing the overall shape of the clamping portion 33 from being changed by the outside.

[0053] Before installing the elastic member 335 to the two adjacent clamping blocks 331, first press a convex portion 3352 on the elastic member 335 so that the elastic member 335 can be placed in the inner hinge plate 334 of the two clamping blocks 331, and place the other convex portion 3352 that is not pressed into the second mounting hole 3341 of the inner hinge plate 334. At this time, put the elastic member 335 straight, release the pressed convex portion 3352, so that it can be stuck in the second mounting hole 3341 of the inner hinge plate 334. After completion, the elastic member 335 is installed, and the two adjacent clamping blocks 331 are in a fixed connection state. If the angle between the two adjacent clamping blocks 331 is to be adjusted, the two clamping blocks 331 can be directly rotated slowly to adjust to the desired angle. If the elastic member 335 is to be removed, a tool may be inserted into the through hole of the outer hinge plate 333 to squeeze the protrusion 3352 to be detached from the second mounting hole 3341 of the inner hinge plate 334 , thereby removing the elastic member 335 .

[0054] Optionally, when the mounting hole and the second mounting hole 3341 are circular in shape, the protrusions 3352 at the upper and lower ends of the elastic member 335 are cylindrical structures, and the push portion 3351 can be a cylinder with a cross-sectional area larger than the mounting portion 31, or it can be a polygonal prism. The cross-section of the polygonal prism must be larger than the cross-section of the mounting portion 31 in all directions, and the protrusion 3352 can be completely set on the push portion 3351.

[0055] See also Figure 7 As shown, in an optional embodiment of the present invention, the distance between two adjacent clamping blocks 331 is s, the thickness of the clamping block 331 is t, and the ratio of s:t is 0.5-1.

[0056] Specifically, when s:t=0.5, the angle between two adjacent clamping blocks 331 can be adjusted in the range of 0° to 26°; when s:t=1, the angle between two adjacent clamping blocks 331 can be adjusted in the range of 0° to 90°. That is to say, when the ratio of s:t is 0.5 to 1, the maximum adjustment angle between two adjacent clamping blocks 331 is in the range of 26° to 90°, and multiple clamping blocks 331 with the maximum adjustment angle within this range can be adaptively adjusted according to different specifications of the filled product. If the maximum adjustment angle between two adjacent clamping blocks 331 is less than 26°, the adjustment angle between the two adjacent clamping blocks 331 is too small and cannot be used as it should be; if the maximum adjustment angle between two adjacent clamping blocks 331 is greater than 90°, the adjustment angle between the two adjacent clamping blocks 331 is too large, and the filled product clamped by the bottle clamping mechanism 3 does not need to have such a large adjustment angle.

[0057] In an optional embodiment of the present invention, the number of the clamping blocks 331 in one clamping portion 33 is three or more.

[0058] Specifically, the number of clamping blocks 331 in the clamping portion 33 on one side is three, four, five or more, and the number of clamping blocks 331 can be selected according to the specifications, shapes and sizes of the actual filling bottles. If the specifications of the filling bottles are large, the number of clamping blocks 331 used will increase with the increase of specifications; if the specifications and shapes of the filling bottles are polygonal, the number of clamping blocks 331 used can be increased, and the angles between the clamping blocks 331 can be adjusted to clamp the polygonal filling bottles.

[0059] In this embodiment, by selecting and setting the number of the clamping blocks 331, a clamping portion 33 with a high degree of adaptability can be assembled for filling bottles of different specifications, shapes and sizes.

[0060] In an optional embodiment of the utility model, the two mounting parts 31 are symmetrically arranged on both sides of the base 2 , and a through hole 311 is arranged on the upper part of the two mounting parts 31 . The two through holes 311 are arranged opposite to each other, and the connecting rod 32 is arranged in the through hole 311 .

[0061] Specifically, a through hole 311 is provided on the upper portion of the mounting portion 31 of the bottle clamping mechanism 3, and a connecting rod 32 of the bottle clamping mechanism 3 is installed in the through hole 311. The connecting rod 32 can move horizontally in the through hole 311. The specific moving direction of the connecting rod 32 is the axial direction connecting the two mounting portions 31, and the connecting rod 32 can move forward and backward in this direction.

[0062] In the embodiment of the utility model, a through hole 311 is provided on the mounting portion 31 to mount the connecting rod 32, so that the connecting rod 32 can be moved forward and backward, so that the bottle clamping mechanism 3 can be used on filling bottles of different sizes, and the bottle clamping mechanism 3 can be moved to clamp the filling bottles more accurately.

[0063] In an optional embodiment of the present invention, an adjustment hole 312 is provided at the lower portion of the mounting portion 31 along the vertical direction.

[0064] Specifically, the adjustment hole 312 of the mounting portion 31 is in the shape of a long strip, and can be moved in the vertical direction through the adjustment hole 312. When the bottle clamping mechanism 3 is moved to a suitable height according to requirements, a fastener is used to pass through the adjustment hole 312 of the mounting portion 31 of the bottle clamping mechanism 3 and fixed to the machine base 2, thereby fixing the height of the bottle clamping mechanism 3.

[0065] This embodiment is suitable for filling bottles with a relatively high height. By adjusting the height of the mounting portion 31, the height of the clamping portion 33 in the bottle clamping mechanism 3 can be adjusted, and the clamping portion 33 of the bottle clamping mechanism 3 can be adjusted according to the height of the filling bottle, so that the clamping portion 33 of the bottle clamping mechanism 3 can firmly clamp the filling bottle. If the mounting portion 31 is not provided with the adjustment hole 312, the bottle clamping mechanism 3, when used for filling bottles with a relatively high height, still only clamps the bottom of the filling bottle. In this case, the filling bottle may not be firmly clamped because the center of gravity of the filling bottle with a relatively high height is higher.

[0066] In this embodiment, the height of the bottle clamping mechanism 3 is adjusted by providing the adjustment hole 312, so that the bottle clamping mechanism 3 can adjust its own height according to the specifications of the filling bottle, so as to achieve the purpose of holding the filling bottle more stably.

[0067] See also Figure 8 As shown, a linear filling device according to a preferred embodiment of the utility model comprises a conveying device 6, a filling device 7 and a capping device 1 as described above, wherein the conveying device 6 is arranged on a machine base 2 of the capping device 1, the filling device 7 is arranged on the conveying device 6, and the filling device 7 is arranged on one side of the capping device 1.

[0068] Specifically, the function of the conveying device 6 is to move the filling bottles that need to be filled, etc.; the filling device 7 is to fill the contents of the cosmetics into the filling bottles. When the filling bottles are placed on the linear filling equipment, they have been placed on the conveying device 6. The conveying device 6 first conveys the filling bottles to the bottom of the filling device 7, and the filling device 7 performs the filling operation on the contents of the filling bottles. After the operation is completed, the filling bottles are then conveyed by the conveying device 6 to the bottom of the capping rotating head 5 of the capping device 1. The clamping part 33 of the capping device 1 clamps the filling bottles, and the capping rotating head 5 places the cap of the filling bottle on the filling bottle and performs the capping operation.

[0069] The working process of the utility model is as follows: both sides of the machine base 2 of the capping device 1 are provided with a bottle clamping mechanism 3, and the bottle clamping mechanism 3 includes a mounting portion 31, a connecting rod 32 and a clamping portion 33. The mounting portion 31 is mounted on the machine base 2, and the setting of the adjustment hole 312 on the mounting portion 31 enables the bottle clamping mechanism 3 to move in the vertical direction; the connecting rod 32 connects the clamping portion 33 with the mounting portion 31, and because the connecting rod 32 is inserted into the through hole 311 of the mounting portion 31, the connecting rod 32 can move in the horizontal direction; the clamping portion 33 includes a plurality of clamping blocks 331, and the angles between adjacent clamping blocks 331 are adjusted and fixed by elastic members 335. When in use, the mounting portion 31, the connecting rod 32 and the clamping portion 33 of the bottle clamping mechanism 3 can be adjusted according to the specification height, size and shape of the filling bottle, so as to achieve the purpose of clamping the filling bottle for capping operation.

[0070] In summary, the embodiments of the utility model provide a capping device and a linear filling device, wherein the bottle clamping mechanism of the capping device can adjust itself in the vertical and horizontal directions according to different filling bottles, and can also adjust the clamping part of the bottle clamping mechanism according to filling bottles of different specifications, shapes and sizes, without replacing the bottle clamping mechanism. The simple structure makes the adjustment process simple to operate, which can save production costs and improve production work efficiency.

[0071] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A capping device, characterized in that: include: Machine base; A bottle clamping mechanism is arranged on both sides of the machine base, the bottle clamping mechanism comprises: two mounting parts, two connecting rods and two clamping parts, the two mounting parts are respectively mounted on both sides of the machine base, the connecting rod is arranged on the inner side of the mounting part, the clamping part is arranged on the other side of the connecting rod, the clamping part comprises a plurality of clamping blocks connected transversely, and the connection mode between adjacent clamping blocks is hinged; A frame arranged on one side of the bottle clamping mechanism; A capping rotating head is arranged above the bottle clamping mechanism and connected to the machine base through the machine frame.

2. A capping device according to claim 1, characterized in that: The clamping portion further comprises a fixing plate, the fixing plate is connected to the connecting rod, and the other side of the fixing plate is connected to the clamping block.

3. A cap screwing device according to claim 1, characterized in that: Hinged parts are arranged on both sides of the clamping block, the two hinged parts arranged on one side of the clamping block are outer hinged plates, and the two hinged parts arranged on the other side of the clamping block are inner hinged plates. The two inner hinged plates of one clamping block are respectively fitted on the inner sides of the two outer hinged plates of the adjacent clamping block.

4. A cap screwing device according to claim 3, characterized in that: The outer hinge plate is provided with a first mounting hole, and the inner hinge plate is provided with a second mounting hole, and the hole diameter of the first mounting hole is consistent with the hole diameter of the second mounting hole.

5. A capping device according to claim 4, characterized in that: The clamping part also includes an elastic member, which is installed in the two inner hinge plates and the two outer hinge plates; the elastic member includes a push portion, a spring and two protrusions, the two protrusions are respectively arranged at the two ends of the push portion, the spring is arranged in the middle of the push portion, and the two ends of the spring are respectively connected to the two protrusions, the protrusions are installed in the second mounting hole and the first mounting hole, and the push portion abuts against the inner sides of the two inner hinge plates.

6. A capping device according to claim 1, characterized in that: The distance between two adjacent clamping blocks is s, the thickness of the clamping block is t, and the ratio of s:t is 0.5-1.

7. The capping device according to claim 1, characterized in that: The number of the clamping blocks in the clamping portion is three or more.

8. The capping device according to claim 1, characterized in that: The two mounting parts are symmetrically arranged on both sides of the machine base, and through holes are arranged on the upper parts of the two mounting parts. The two through holes are arranged opposite to each other, and the connecting rod is arranged in the through holes.

9. The capping device according to claim 1, characterized in that: The lower part of the mounting part is provided with an adjustment hole along the vertical direction.

10. A linear filling device, characterized in that: It comprises a conveying device, a filling device and a capping device as claimed in any one of claims 1 to 9, wherein the conveying device is arranged on the base of the capping device, the filling device is arranged on the conveying device, and the filling device is arranged on one side of the capping device.

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