Quick-release sealing device of filter stick forming equipment

Abstract

A quick-disassembly sealing device of filter stick forming equipment comprises a back plate, a positioning seat, a cooling strip and a cigarette gun base, the back plate is installed on a machine body of the filter stick forming equipment, the positioning seat is fixed to the back plate, and the cooling strip is tightly attached to the bottom of the positioning seat and matched with the positioning seat through a positioning structure in a clamped mode. The positioning seat and the cooling strip are locked and connected through a linkage type lock catch mechanism, the smoke gun base is arranged at the bottom of the cooling strip in a matched mode, the upper surface of the smoke gun base and the lower surface of the cooling strip are in attached contact, and a filter stick forming cavity is formed between the upper surface and the lower surface. According to the utility model, the positioning seat and the cooling strip are mounted in a split manner, so that the cooling strip has a quick release function, the cooling strips with different specifications are convenient to replace, the variable-specification adjustment of the sealer can be completed only by replacing the cooling strips with different specifications, the variable-specification adjustment procedure of the sealer is simplified, the maintenance cost of the sealer is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of tobacco equipment technology, and more specifically, to a quick-release sealing device for a filter rod forming equipment. Background Technology

[0002] A filter rod forming machine is a type of mechanical equipment used in cigarette production. This machine is used to produce and form cigarette filters. The sealing device in the filter rod forming machine is a low-temperature filter rod cooling and forming device, and its temperature needs to be controlled within a low range. When the filter rod passes through the sealing device at high speed, the sealing device's filter rod cooling strip can quickly cool the hot melt adhesive applied to the filter rod, causing the hot melt adhesive to generate adhesive force, thereby bonding and forming the filter rod.

[0003] The existing sealing device filter rod cooling strip adopts a multi-layer structure design. After the sealing device is installed as a whole, adjusting the cooling strip is quite complicated. When changing the specifications of the equipment, the entire sealing device needs to be disassembled, recalibrated, and reinstalled, which is complicated and requires a high level of technical skill from the operators. With the modernization of filter cigarette manufacturing equipment, the corresponding variable specification device also needs to be redesigned and improved.

[0004] Therefore, it is necessary to provide a quick-release sealing device for filter rod forming equipment to reduce the operating cost of changing the size of the sealing device and improve production efficiency. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a quick-release sealing device for filter rod forming equipment. This invention separates the positioning seat from the cooling strip, enabling the cooling strip to be quickly removed. This facilitates the replacement of cooling strips of different specifications; simply changing the cooling strip to a different specification completes the sealer's specification adjustment process, simplifying the sealer's specification adjustment procedure, reducing maintenance costs, and improving production efficiency. This invention overcomes the problems of complex installation and adjustment of the cooling strips in existing sealers' filter rods and the high difficulty of specification changes.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a quick-release sealing device for a filter rod forming equipment, comprising a back plate, a positioning seat, a cooling strip, and a smoke gun base. The back plate is installed on the machine body of the filter rod forming equipment, the positioning seat is fixed on the back plate, the cooling strip is closely attached to the bottom of the positioning seat and is positioned and engaged with the positioning seat through a positioning structure, and the positioning seat and the cooling strip are also locked together by a linkage locking mechanism. The smoke gun base is matched and set at the bottom of the cooling strip, and there is a gap between the upper surface of the smoke gun base and the lower surface of the cooling strip, with a filter rod forming cavity formed in the middle of the gap.

[0007] Based on the above, the positioning seat is fixedly installed on the front side of the back plate by at least two fastening screws, and there is a gap between the rear side of the positioning seat and the front side of the back plate.

[0008] Based on the above, the left end of the positioning seat is provided with a cooling water inlet that runs vertically through the water, and the right end of the positioning seat is provided with a cooling water outlet that runs vertically through the water. The interior of the cooling strip is provided with a cooling water channel along the left and right directions. The left side of the upper surface of the cooling strip is provided with a left sealing interface that connects to the left end of the cooling water channel at the cooling water inlet. The right side of the upper surface of the cooling water channel is provided with a right sealing interface that connects to the right end of the cooling water channel at the cooling water outlet. The left sealing interface is inserted into the lower end of the cooling water inlet, and the right sealing interface is inserted into the lower end of the cooling water outlet.

[0009] Based on the above, the positioning structure includes at least two first positioning pins fixedly disposed on the upper surface of the cooling bar, and the lower surface of the positioning seat is provided with positioning grooves corresponding to the positions of each first positioning pin, with each first positioning pin being inserted into each positioning groove respectively.

[0010] Based on the above, the linkage locking mechanism includes two sets of linkage locking assemblies. The two sets of linkage locking assemblies have the same structure and are symmetrically arranged on the front and rear sides of the positioning seat.

[0011] The front linkage locking assembly includes a linkage and several locking plates spaced apart on the left and right sides of the positioning seat. The locking plates are long strips parallel to the front side of the positioning seat and arranged vertically in the length direction. Each locking plate has a hook with an opening on the right side integrally formed at the bottom. The linkage is horizontally arranged on the upper front side of each locking plate in the left and right direction. The linkage is hinged to each locking plate. A second positioning pin is fixedly arranged on the front side of the cooling strip corresponding to the bottom of each locking plate. Each second positioning pin is respectively engaged in each hook. The second positioning pin is in contact with the bottom of the inner end of the corresponding hook.

[0012] A spindle, which is horizontally rotatable and mounted on a positioning seat, is fixedly connected between the middle of two symmetrical locking plates.

[0013] Based on the above, the upper surface of the smoke gun base is provided with a U-shaped long groove with an open upper side in the left-right direction, and the lower surface of the cooling strip is provided with a circular arc-shaped long groove with an open lower side in the left-right direction. The circular arc-shaped long groove is attached to the upper part of the U-shaped long groove, and the circular arc-shaped long groove and the U-shaped long groove form the filter rod forming cavity.

[0014] Based on the above, a hexagonal prism coaxial with the corresponding spindle is fixedly connected to the center of the front side of the front latch plate.

[0015] This utility model has substantial features and advancements compared to existing technologies. Specifically, it separates the positioning seat and the cooling strip into individual units. The positioning seat and the cooling strip are positioned and engaged by a positioning structure and locked together by two sets of connecting rod locking assemblies. Each locking plate of the two sets of connecting rod locking assemblies rotates synchronously around its corresponding spindle via a corresponding spindle and connecting rod. This causes the hooks of each locking plate to engage or disengage synchronously with their respective second positioning pins, thus locking or separating the positioning seat and the cooling strip. This provides the cooling strip with a quick-release function, facilitating the replacement of cooling strips of different specifications. Therefore, after the sealer is adjusted, only the cooling strip of different specifications needs to be replaced to complete the sealer specification change adjustment, thereby simplifying the sealer specification change adjustment process.

[0016] This invention enables simple replacement of standard parts while ensuring the stable function of the sealing device, thereby reducing the maintenance cost of the sealing device and improving production efficiency.

[0017] This invention is not limited to the replacement of cooling strips of water-cooled types; it is also applicable to the replacement of cooling strips of other types, such as electronic refrigeration. Attached Figure Description

[0018] Figure 1 This is an axial view of the present invention.

[0019] Figure 2 This is the front view of the present invention, with a partial cross-section on the right side.

[0020] Figure 3 This is an exploded view of the main view of this utility model, omitting the back plate.

[0021] Figure 4 This is an exploded axial view of the present invention, omitting the back plate.

[0022] In the diagram: 1. Back plate; 2. Positioning seat; 3. Cooling strip; 4. Smoke gun base; 5. Fastening screw; 6. Cooling water inlet; 7. Cooling water outlet; 8. Cooling water channel; 9. Left sealing interface; 10. Right sealing interface; 11. First positioning pin; 12. Connecting rod; 13. Locking plate; 14. Hook; 15. Second positioning pin; 16. Mandrel; 17. U-shaped long groove; 18. Arc-shaped long groove; 19. Hexagonal prism. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0024] Example 1

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a quick-release sealing device for a filter rod forming equipment includes a back plate 1, a positioning seat 2, a cooling strip 3, and a smoke gun base 4. The back plate 1 is installed on the machine body of the filter rod forming equipment. The positioning seat 2 is fixed on the back plate 1. The cooling strip 3 is close to the bottom of the positioning seat 2 and is positioned and engaged with the positioning seat 2 through a positioning structure. The positioning seat 2 and the cooling strip 3 are also locked together by a linkage locking mechanism. The smoke gun base 4 is matched and set at the bottom of the cooling strip 3. There is a gap between the upper surface of the smoke gun base 4 and the lower surface of the cooling strip 3, and a filter rod forming cavity is formed in the middle of the gap.

[0026] In this embodiment, the positioning seat 2 is fixedly installed on the front side of the back plate 1 by at least two fastening screws 5, and there is a gap between the rear side of the positioning seat 2 and the front side of the back plate 1.

[0027] In this embodiment, the left end of the positioning seat 2 is provided with a cooling water inlet 6 that runs vertically through the water, and the right end of the positioning seat 2 is provided with a cooling water outlet 7 that runs vertically through the water. The interior of the cooling strip 3 is provided with a cooling water channel 8 along the left and right directions. The left side of the upper surface of the cooling strip 3 is provided with a left sealing interface 9 that communicates with the left end of the cooling water channel 8 at the location of the cooling water inlet 6. The right side of the upper surface of the cooling water channel 8 is provided with a right sealing interface 10 that communicates with the right end of the cooling water channel 8 at the location of the cooling water outlet 7. The left sealing interface 9 is correspondingly and sealingly inserted into the lower end of the cooling water inlet 6, and the right sealing interface 10 is correspondingly and sealingly inserted into the lower end of the cooling water outlet 7. When the sealer is working, cooling water is injected through the cooling water inlet 6. The cooling water enters the cooling water channel 8 inside the cooling strip 3 through the left sealing interface 9. The cooling water flows through the cooling water channel 8 to the right sealing interface 10 and then flows out through the cooling water outlet 7. The cooling water carries away the heat of the cooling strip 3 and reduces the temperature of the lower surface of the cooling strip 3. When the filter rod passes through the filter rod forming cavity, the filter rod is cooled by the upper surface of the smoke gun base 4 and the lower surface of the cooling strip 3. The hot melt adhesive on the filter rod cools down quickly and generates adhesive force, so that the filter rod is bonded and formed.

[0028] In this embodiment, the positioning structure includes at least two first positioning pins 11 fixedly disposed on the upper surface of the cooling strip 3. The lower surface of the positioning seat 2 is provided with positioning grooves (not shown) corresponding to the positions of each first positioning pin 11. Each first positioning pin 11 is respectively inserted into each positioning groove.

[0029] In this embodiment, the linkage locking mechanism includes two sets of linkage locking assemblies. The two sets of linkage locking assemblies have the same structure and are symmetrically arranged on the front and rear sides of the positioning seat 2.

[0030] The front connecting rod locking assembly includes a connecting rod 12 and three locking plates 13 spaced apart on the front side of the positioning seat 2. The locking plates 13 are long strips parallel to the front side of the positioning seat 2 and arranged vertically in the length direction. Each locking plate 13 has a hook 14 with an opening on the right side integrally formed at the bottom. The connecting rod 12 is horizontally arranged on the upper front side of each locking plate 13 in the left and right direction. The connecting rod 12 is hinged to each locking plate 13. A second positioning pin 15 is fixedly arranged on the front side of the cooling strip 3 corresponding to the bottom of each locking plate 13. Each second positioning pin 15 is respectively engaged in each hook 14. The second positioning pin 15 is in contact with the bottom of the inner end of the corresponding hook 14.

[0031] Two symmetrical locking plates 13 are fixedly connected at their midpoints to a spindle 16 that is horizontally rotatably mounted on the positioning seat 2. Each locking plate 13 rotates synchronously around its corresponding spindle 16 via the corresponding spindle 16 and connecting rod 12, thereby causing the hooks 14 of each locking plate 13 to engage or disengage synchronously with the corresponding second positioning pins 15, thus locking or separating the positioning seat 2 from the cooling strip 3, facilitating the replacement of cooling strips 3 of different specifications.

[0032] In this embodiment, the upper surface of the smoke gun base 4 is provided with a U-shaped long groove 17 with an open upper side along the left and right direction, and the lower surface of the cooling strip 3 is provided with a circular arc long groove 18 with an open lower side along the left and right direction. The circular arc long groove 18 is attached to the upper part of the U-shaped long groove 17, and the circular arc long groove 18 and the U-shaped long groove 17 form the filter rod forming cavity.

[0033] In this embodiment, the positioning seat 2 and the cooling strip 3 are installed separately. When the cooling strip 3 is installed at the bottom of the positioning seat 2, the cooperation between the first positioning pin 11 and the positioning groove can limit the relative position of the cooling strip 3 and the positioning seat 2 in the horizontal direction. At the same time, the hooks 14 of each locking plate 13 are simultaneously screwed into the corresponding second positioning pins 15. Each second positioning pin 15 is respectively engaged in the hooks 14, tightening the cooling strip 3 and the positioning seat 2, limiting the relative position of the cooling strip 3 and the positioning seat 2 in the vertical direction, thus locking the positioning seat 2 and the cooling strip 3 together, completing the locking of the cooling strip 3. When locking and positioning, and subsequently changing the specifications of the cooling strip 3, the positioning seat 2 remains fixed as a reference. By synchronously rotating each locking plate 13, the hooks 14 of each locking plate 13 disengage from the corresponding second positioning pins 15, thus separating the positioning seat 2 from the cooling strip 3. After removing and replacing the cooling strip 3 with one of different specifications, the hooks 14 of each locking plate 13 are screwed back onto the corresponding second positioning pins 15 to complete the replacement of the cooling strip 3. This achieves specification adjustment of the sealer, simplifies the replacement of standard parts, reduces the maintenance cost of the sealer, and improves production efficiency. Example 2

[0034] Unlike Embodiment 1, in this embodiment, a hexagonal prism 19 coaxial with the corresponding spindle 16 is fixedly connected to the center of the front side of the front latch plate 13.

[0035] When replacing the cooling strip 3, the corresponding hexagonal prism 19 is clamped by the wrench, making it easier to rotate the corresponding locking plate 13. This allows each locking plate 13 to rotate synchronously under the action of the corresponding connecting rod 12, causing the hooks 14 of each locking plate 13 to disengage from the corresponding second positioning pins 15. The positioning seat 2 separates from the cooling strip 3, allowing the replacement of cooling strips 3 of different specifications.

[0036] The base 4 of the smoke gun is replaced in sync with the specifications of the cooling strip 3 to accommodate different specifications of the cooling strip 3.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and not to limit it; although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents; without departing from the spirit of the technical solution of the utility model, they should all be included in the scope of the technical solution for which protection is requested in the utility model.

Claims

1. A quick-release sealing device for a filter rod forming equipment, characterized in that: The filter rod forming equipment includes a back plate, a positioning seat, a cooling strip, and a filter rod base. The back plate is installed on the machine body of the filter rod forming equipment. The positioning seat is fixed on the back plate. The cooling strip is close to the bottom of the positioning seat and is positioned and engaged with the positioning seat through a positioning structure. The positioning seat and the cooling strip are also locked together by a linkage locking mechanism. The filter rod base is matched and set at the bottom of the cooling strip. There is a gap between the upper surface of the filter rod base and the lower surface of the cooling strip, and a filter rod forming cavity is formed in the middle of the gap.

2. The quick-release sealing device for the filter rod forming equipment according to claim 1, characterized in that: The positioning seat is fixedly mounted on the front side of the back plate by at least two fastening screws, and there is a gap between the rear side of the positioning seat and the front side of the back plate.

3. The quick-release sealing device for the filter rod forming equipment according to claim 1, characterized in that: The left end of the positioning seat is provided with a cooling water inlet that runs vertically through the water, and the right end of the positioning seat is provided with a cooling water outlet that runs vertically through the water. The cooling strip has a cooling water channel running horizontally inside. The left side of the upper surface of the cooling strip is provided with a left sealing interface that connects to the left end of the cooling water channel at the cooling water inlet. The right side of the upper surface of the cooling water channel is provided with a right sealing interface that connects to the right end of the cooling water channel at the cooling water outlet. The left sealing interface is inserted into the lower end of the cooling water inlet, and the right sealing interface is inserted into the lower end of the cooling water outlet.

4. The quick-release sealing device for the filter rod forming equipment according to claim 1, characterized in that: The positioning structure includes at least two first positioning pins fixedly disposed on the upper surface of the cooling bar. The lower surface of the positioning seat is provided with positioning grooves corresponding to the positions of each first positioning pin, and each first positioning pin is respectively inserted into each positioning groove.

5. The quick-release sealing device for the filter rod forming equipment according to claim 1, characterized in that: The linkage locking mechanism includes two sets of linkage locking assemblies. The two sets of linkage locking assemblies have the same structure and are symmetrically arranged on the front and rear sides of the positioning seat. The front linkage locking assembly includes a linkage and several locking plates spaced apart on the left and right sides of the positioning seat. The locking plates are long strips parallel to the front side of the positioning seat and arranged vertically in the length direction. Each locking plate has a hook with an opening on the right side integrally formed at the bottom. The linkage is horizontally arranged on the upper front side of each locking plate in the left and right direction. The linkage is hinged to each locking plate. A second positioning pin is fixedly arranged on the front side of the cooling strip corresponding to the bottom of each locking plate. Each second positioning pin is respectively engaged in each hook. The second positioning pin is in contact with the bottom of the inner end of the corresponding hook. A spindle, which is horizontally rotatable and mounted on a positioning seat, is fixedly connected between the middle of two symmetrical locking plates.

6. The quick-release sealing device for the filter rod forming equipment according to claim 1, characterized in that: The upper surface of the smoke gun base has a U-shaped long groove with an open upper side in the middle along the left and right direction, and the lower surface of the cooling strip has an arc-shaped long groove with an open lower side in the middle along the left and right direction. The arc-shaped long groove is attached to the upper part of the U-shaped long groove, and the arc-shaped long groove and the U-shaped long groove form the filter rod forming cavity.

7. The quick-release sealing device for the filter rod forming equipment according to claim 5, characterized in that: A hexagonal prism coaxial with the corresponding spindle is fixedly connected to the center of the front side of the front latch plate.

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