Air distribution seat with adjustable material transfer stroke

Abstract

The utility model relates to the technical field of cigarette equipment, in particular to a material transfer stroke adjustable air distribution seat which comprises a body and an opening formed in the side wall of the body, the body is cylindrical, a negative pressure cavity is formed in the body, and a connector externally connected with an air pressure system is further arranged on the side wall of the body. The interface is communicated with the opening through the negative pressure cavity; the body is provided with an opening, the opening is in a cambered surface shape, the two ends of the opening are in an arc shape and are arranged in the axial direction of the body, the two sides of the opening are perpendicular to the two ends of the opening respectively, and the two sides of the opening are arranged in the circumferential direction of the body; the inner wall and the outer wall of the check block are both in a cambered surface shape, and the two ends of the check block are detachably connected with the two ends of the opening respectively. In the utility model, the two ends of the stop block are respectively and detachably connected with the two ends of the opening arranged along the axial direction of the body, so that the circumferential size of the opening can be simply and conveniently adjusted, the negative pressure stroke is changed, and the stroke for adsorbing and transferring materials is changed.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette making equipment, and more specifically to a gas distribution seat with adjustable material transfer stroke. Background Art

[0002] In the tobacco industry, the gas distribution seat is often installed in the drum cavity for material transfer to provide negative pressure for the drum so that the material can be adsorbed on the drum surface. The opening arc size of the gas distribution seat mainly affects the arc stroke size of the drum receiving negative pressure, thereby affecting the stroke size of the material receiving air pressure on the drum during material transfer. The opening size of the traditional gas distribution seat is fixed and is used for single-stroke material transportation.

[0003] The prior art discloses a gas distribution seat and a material transfer device, wherein the gas distribution seat comprises a body and an opening arranged on the side wall of the body, wherein the side wall of the body is also provided with an interface for an external air pressure system, wherein the interface is connected with the opening, wherein the body is cylindrical, wherein the opening is curved, wherein the two ends of the opening are curved, wherein the two sides of the opening are respectively perpendicular to the two ends of the opening, and further comprises a plurality of first gaskets, wherein the plurality of first gaskets are detachably connected to the two ends of the opening, and further comprises a plurality of second gaskets, wherein the plurality of second gaskets are detachably connected to the two sides of the opening. In this scheme, by adjusting the number of second gaskets, the distance between the two sides of the opening can be adjusted to achieve the circumferential adjustment of the opening, but in this scheme, the second gasket is connected to the two sides of the opening by a second connecting member, and when the circumferential opening size needs to be reduced, when the number of second gaskets increases, and since the plurality of second gaskets are arranged along an arc, in order for the second connecting member to smoothly connect and install the plurality of second gaskets, the second gaskets need to be designed into different specifications and installed in a certain order, and at the same time, when the number of second gaskets to be stacked increases, the installation of the plurality of second gaskets may not be achieved. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a material transfer stroke adjustable valve seat, wherein the two ends of the stopper are detachably connected to the two ends of the opening arranged along the axial direction of the body, and the circumferential adjustment of the opening can be easily achieved.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A material transfer stroke adjustable valve seat is provided, comprising a main body and an opening arranged on the side wall of the main body, the main body is cylindrical, a negative pressure chamber is arranged in the main body, and an interface for an external air pressure system is also arranged on the side wall of the main body, and the interface is connected with the opening through the negative pressure chamber; the opening is in the shape of an arc surface, and both ends of the opening are arc-shaped, and the two ends of the opening are arranged along the axial direction of the main body, the two sides of the opening are respectively perpendicular to the two ends of the opening, and the two sides of the opening are arranged along the circumferential direction of the main body; a stopper is also included, the inner wall and the outer wall of the stopper are both in the shape of an arc surface, and the two ends of the stopper are respectively detachably connected to the two ends of the opening.

[0007] The utility model discloses a valve seat with adjustable material transfer stroke, which is used in conjunction with a drum wheel. When in use, the valve seat is sleeved in the drum wheel, and the valve seat is fixed. The drum wheel is driven to rotate by a power shaft passing through the valve seat. An external air pressure system is connected through an interface to form a negative pressure in the negative pressure chamber. The negative pressure can be conducted to the outer wall of the drum wheel through an opening to adsorb the material. When the drum wheel rotates, the material can be transferred from one side of the opening to the other side of the opening along both ends of the opening. When it is necessary to reduce the material transfer stroke, a certain number of blocks can be selected, and the two ends of the blocks can be respectively connected to the two ends of the opening to shorten the negative pressure stroke, thereby shortening the material transfer stroke. When it is necessary to increase the material transfer stroke, a certain number of blocks can be removed to increase the negative pressure stroke, thereby increasing the material transfer stroke. In the utility model, the two ends of the block are detachably connected to the two ends of the opening arranged along the axial direction of the main body, and the circumferential adjustment of the opening can be easily achieved. The block can be conveniently and quickly accessed by changing the size specifications of the block and / or changing the number of the block. There is no need to install blocks of different specifications in sequence, so the area of ​​the side opening of the valve seat that is circumferentially blocked can be adjusted, the circumferential size adjustment of the opening can be easily achieved, and the negative pressure stroke can be changed to change the stroke of adsorbing and transferring materials.

[0008] Furthermore, the main body is provided with a plurality of first connection holes at both ends of the opening, and the two ends of the stopper are provided with second connection holes respectively, and the first connection holes and the second connection holes are connected via a first connection piece. The number of first connection holes at both ends of the opening is the same and the positions correspond one to one, and the stopper is installed by cooperating with the two second connection holes on the same stopper through the two corresponding first connection holes; wherein, when installing the stopper, the plurality of stoppers are installed one by one from one side of the opening along the two ends of the opening to the other side of the opening, or the plurality of stoppers are installed from both sides of the opening along the two ends of the opening to the middle of the opening, to ensure that the negative pressure area of ​​the final opening can continuously adsorb and transfer materials

[0009] Furthermore, grooves communicating with the second connection hole are respectively formed at both ends of the stopper, a clamping platform is formed between the groove and the second connection hole, and the first connection member can contact the clamping platform. The first connection member is passed through the second connection hole and connected to the opening of the body through the first connection hole, so that the first connection member is closely attached to the clamping platform, thereby ensuring the stable installation of the stopper.

[0010] Furthermore, the first connecting member is a bolt, and the stopper can be conveniently fixed and installed by tightening the bolt, and the stopper can be conveniently removed by loosening and removing the bolt.

[0011] Furthermore, the second connection hole is a waist-shaped hole. When the suction area of ​​the opening needs to be adjusted, the bolt is loosened, the block is slid, and the bolt and the waist-shaped hole slide relative to each other. When the suction area reaches the required level, the bolt is tightened to press the clamping table, and the block is fixed again. When the opening area blocked by the block is too large or too small, blocks of different sizes can be replaced, and then the connection position of the waist-shaped hole and the bolt is adjusted for fine-tuning.

[0012] Furthermore, the main body is provided with a sink, the sink is connected to the negative pressure chamber through the opening, a step is formed between the sink and the opening, and a plurality of the first connecting holes are provided on the steps at both ends of the opening; when installing the block, the block is first installed from both sides of the opening so that the block covers the steps on both sides of the opening, a certain number of blocks are installed in the opening, and the position of the waist-shaped hole and the bolt connection is adjusted as needed, while ensuring that the blocks on both sides of the opening always cover part of the steps to prevent the opening from being exposed between the steps and the block to form a negative pressure. Among them, the setting of the sink can provide space for the block to be installed, and prevent the block and the first connecting member from protruding from the outer wall of the main body and affecting the rotation of the drum.

[0013] Furthermore, the side wall of the body is also provided with a pressure relief groove, one end of which extends to the end face of the body. When the air pressure in the valve seat is too high, the pressure relief groove, the end face of the body and the negative pressure cavity can form a pressure relief airway to relieve pressure.

[0014] Furthermore, a plurality of positioning blocks are arranged on the inner wall of one end of the body along the circumferential direction. The valve seat can be positioned and installed through the positioning holes to ensure that the valve seat is coaxially installed with the power shaft, thereby ensuring that the drum can smoothly rotate around the valve seat to transfer materials.

[0015] Furthermore, the gas distribution seat also includes a base, which is fixed to one end of the body and is used to fix the gas distribution seat.

[0016] Furthermore, the base is provided with a plurality of third connection holes along the circumferential direction, and the third connection holes cooperate with the second connection pieces. After the gas distribution seat is positioned by the positioning block, the second connection piece cooperates with the third connection holes on the base to achieve fixed installation of the gas distribution seat.

[0017] Compared with the background technology, the material transfer stroke adjustable valve seat of the utility model has the following beneficial effects:

[0018] (1) The two ends of the stopper are detachably connected to the two ends of the opening arranged along the axial direction of the body, so that the circumferential adjustment of the opening can be easily achieved;

[0019] (2) The circumferential size of the opening can be adjusted by changing the size specifications of the stopper;

[0020] (3) The circumferential size of the opening can be adjusted by changing the number of blocks;

[0021] (4) The connection position between the second connection hole and the first connection member can be adjusted, the fixing point of the stopper can be adjusted, and the circumferential size of the opening can be adjusted;

[0022] (5) The stoppers can be easily and quickly accessed without distinguishing the installation sequence of the stoppers of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of a gas distribution seat with adjustable material transfer stroke in an embodiment of the utility model;

[0024] Figure 2 An exploded view of a valve seat with adjustable material transfer stroke in an embodiment of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the baffle in the embodiment of the utility model.

[0026] In the attached drawings: 1-main body; 11-interface; 12-positioning block; 2-opening; 3-stopper; 31-second connecting hole; 32-groove; 33-card platform; 4-sink; 41-first connecting hole; 42-step; 5-first connecting piece; 6-base; 61-third connecting hole; 7-pressure relief groove. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with specific implementation methods. The drawings are only used for exemplary descriptions, and are only schematic diagrams, not actual pictures, and cannot be understood as limiting this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0028] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] Embodiment 1

[0030] A material transfer stroke adjustable valve seat, such as Figure 1 , Figure 2 As shown, it includes a main body 1 and an opening 2 arranged on the side wall of the main body 1, the main body 1 is cylindrical, a negative pressure chamber is arranged in the main body 1, and an interface 11 for an external air pressure system is also arranged on the side wall of the main body 1, and the interface 11 is connected with the opening 2 through the negative pressure chamber; the opening 2 is in an arc shape, and both ends of the opening 2 are arc-shaped, and the two ends of the opening 2 are arranged along the axial direction of the main body 1, the two sides of the opening 2 are respectively perpendicular to the two ends of the opening 2, and the two sides of the opening 2 are arranged along the circumferential direction of the main body 1; it also includes a stopper 3, the inner wall and the outer wall of the stopper 3 are both in an arc shape, and the two ends of the stopper 3 are respectively detachably connected to the two ends of the opening 2.

[0031] The above-mentioned material transfer stroke adjustable valve seat is used in conjunction with a drum wheel. When in use, the valve seat is sleeved in the drum wheel, and the valve seat is fixed. The drum wheel is driven to rotate by a power shaft passing through the valve seat. An external air pressure system is connected through the interface 11 to form a negative pressure in the negative pressure chamber. The negative pressure can be discharged to the outer wall of the drum wheel through the opening 2 to adsorb the material. When the drum wheel rotates, the material can be transferred from one side of the opening 2 to the other side of the opening 2 along the two ends of the opening 2. When it is necessary to reduce the material transfer stroke, a certain number of blocks 3 can be selected, and the two ends of the block 3 can be respectively connected to the two ends of the opening 2 to shorten the negative pressure stroke, thereby shortening the material transfer stroke; when it is necessary to increase the material transfer stroke, a certain number of blocks 3 can be removed to increase the negative pressure stroke, thereby increasing the material transfer stroke. In the present embodiment, the two ends of the stopper 3 are detachably connected to the two ends of the opening 2 arranged axially along the main body 1, respectively, and the circumferential adjustment of the opening 2 can be easily realized. The stopper 3 can be conveniently and quickly accessed by changing the size specifications of the stopper 3 and / or changing the number of the stopper 3. There is no need to install stops 3 of different specifications in sequence, so the area of ​​the circumferentially blocked opening 2 on the side of the valve seat can be adjusted, and the circumferential size adjustment of the opening 2 can be easily realized. The negative pressure stroke can be changed to change the stroke of adsorbing and transferring materials.

[0032] When installing the stopper 3, several stoppers 3 are installed one by one from one side of the opening 2 along the two ends of the opening 2 to the other side of the opening 2, or several stoppers 3 are installed from both sides of the opening 2 along the two ends of the opening 2 to the middle of the opening 2, to ensure that the negative pressure area of ​​the final opening 2 can continuously adsorb and transfer materials.

[0033] like Figure 1 , Figure 2 As shown, the body 1 is provided with a plurality of first connection holes 41 at both ends of the opening 2, and the two ends of the stopper 3 are respectively provided with second connection holes 31, and the first connection holes 41 and the second connection holes 31 are connected through the first connection member 5. Specifically, the number of the first connection holes 41 at both ends of the opening 2 is the same and the positions correspond one to one, and the stopper 3 is installed by matching the two corresponding first connection holes 41 with the two second connection holes 31 on the same stopper 3.

[0034] like Figure 2 , Figure 3 As shown, grooves 32 communicating with the second connection hole 31 are respectively formed at both ends of the stopper 3, and a clamping platform 33 is formed between the groove 32 and the second connection hole 31, and the first connection member 5 can contact the clamping platform 33. During implementation, the first connection member 5 passes through the second connection hole 31 and is connected to the opening 2 of the body 1 through the first connection hole 41, so that the first connection member 5 is closely attached to the clamping platform 33, ensuring that the stopper 3 is firmly installed.

[0035] Specifically, Figure 1 , Figure 2 As shown, the first connecting member 5 is a bolt. When implemented, the second connecting hole 31 and the first connecting hole 41 are connected by the bolt, and the stopper 3 can be conveniently fastened and installed by tightening the bolt, and the stopper 3 can be conveniently removed by loosening and taking out the bolt, and one end of the bolt is located in the groove 32 to prevent the bolt from protruding from the outer wall of the stopper 3.

[0036] like Figure 3 As shown, the second connection hole 31 is a waist-shaped hole. During implementation, when the air suction area of ​​the opening 2 needs to be adjusted, the bolt is loosened, the stopper 3 is slid, and the bolt and the waist-shaped hole slide relative to each other. When the air suction area reaches the required level, the bolt is tightened to press the clamping table 33, and the stopper 3 is fixed again. When the area of ​​the opening 2 blocked by the stopper 3 is too large or too small, the stopper 3 of different sizes can be replaced, and then the connection position of the waist-shaped hole and the bolt is adjusted for fine-tuning.

[0037] like Figure 1 , Figure 2As shown, the body 1 is provided with a sink 4, which is connected to the negative pressure chamber through the opening 2, and a step 42 is formed between the sink 4 and the opening 2, and a plurality of first connecting holes 41 are provided on the steps 42 at both ends of the opening 2. Specifically, steps 42 are formed at both ends of the opening 2 and on both sides of the opening 2. When installing the stopper 3, the stopper 3 is first installed from both sides of the opening 2 so that the stopper 3 covers the steps 42 on both sides of the opening 2. A certain number of stoppers 3 are installed in the opening 2, and the position of the waist-shaped hole and the bolt connection is adjusted as needed, while ensuring that the stoppers 3 on both sides of the opening 2 always cover part of the steps 42 to prevent the opening 2 from being exposed between the steps 42 and the stopper 3 to form a negative pressure. Among them, the setting of the sink 4 can provide an installation space for the stopper 3, and prevent the stopper 3 and the first connecting member 5 from protruding from the outer wall of the body 1 and affecting the rotation of the drum wheel.

[0038] Embodiment 2

[0039] This embodiment is similar to the first embodiment, except that Figure 1 , Figure 2 As shown, the side wall of the body 1 is also provided with a pressure relief groove 7, one end of which extends to the end face of the body 1. During implementation, there is a gap between the end face of the body 1 and the drum wheel, and there is a gap between the negative pressure chamber in the body 1 and the power shaft. When the air pressure in the valve seat is too high, the pressure relief groove 7, the end face of the body 1 and the negative pressure chamber can form a pressure relief airway to relieve pressure.

[0040] Embodiment 3

[0041] This embodiment is similar to the second embodiment, except that Figure 1 , Figure 2 As shown, a plurality of positioning blocks 12 are arranged along the circumferential direction on the inner wall of one end of the body 1. Specifically, during installation, the valve seat is fixedly mounted on the bottom plate, and during implementation, the drum wheel is coaxially connected with the power shaft to realize rotation, the power shaft passes through the bottom plate and is inserted into the valve seat, a plurality of protrusions are arranged along the circumference of the power shaft on the bottom plate, and gaps corresponding to the positioning blocks 12 are formed between adjacent protrusions, and the valve seat can be positioned and installed by matching the plurality of positioning blocks 12 with the plurality of gaps one by one, so as to ensure that the valve seat is coaxially mounted with the power shaft, and further ensure that the drum wheel can smoothly rotate around the valve seat to transfer materials.

[0042] like Figure 1 , Figure 2 As shown, the gas distribution seat also includes a base 6, which is fixedly arranged at one end of the body 1, and the base 6 is used to fix the gas distribution seat. Specifically, the base 6 is provided with a plurality of third connection holes 61 along the circumferential direction, and the third connection holes 61 cooperate with the second connection member. During implementation, the gas distribution seat is positioned by cooperating between the positioning block 12 and the notch between the protrusions on the bottom plate, and then the base 6 is mounted on the bottom plate by cooperating between the second connection member and the third connection holes 61 on the base 6, thereby realizing the fixed installation of the gas distribution seat.

[0043] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A material transfer stroke adjustable valve seat, comprising a body (1) and an opening (2) arranged on the side wall of the body (1), the body (1) is cylindrical, a negative pressure chamber is arranged in the body (1), and the side wall of the body (1) is also provided with an interface (11) for an external air pressure system, and the interface (11) is connected to the opening (2) through the negative pressure chamber; the opening (2) is in the shape of an arc surface, and the two ends of the opening (2) are arc-shaped, and the two ends of the opening (2) are arranged along the axial direction of the body (1), the two sides of the opening (2) are respectively perpendicular to the two ends of the opening (2), and the two sides of the opening (2) are arranged along the circumference of the body (1); characterized in that It also comprises a stopper (3), the inner wall and the outer wall of the stopper (3) are both in the shape of arc surfaces, and the two ends of the stopper (3) are respectively detachably connected to the two ends of the opening (2).

2. The material transfer stroke adjustable gas distribution seat according to claim 1 is characterized in that: The main body (1) is provided with a plurality of first connection holes (41) at both ends of the opening (2), and the two ends of the stopper (3) are respectively provided with second connection holes (31), and the first connection holes (41) and the second connection holes (31) are connected via a first connection member (5).

3. The material transfer stroke adjustable gas distribution seat according to claim 2 is characterized in that: The two ends of the stopper (3) are respectively provided with grooves (32) connected to the second connecting hole (31), and a clamping platform (33) is formed between the groove (32) and the second connecting hole (31), and the first connecting member (5) can contact the clamping platform (33).

4. The material transfer stroke adjustable gas distribution seat according to claim 2, characterized in that: The first connecting member (5) is a bolt.

5. The material transfer stroke adjustable gas distribution seat according to claim 2, characterized in that: The second connecting hole (31) is a waist-shaped hole.

6. The material transfer stroke adjustable gas distribution seat according to claim 2, characterized in that: The main body (1) is provided with a sink (4), the sink (4) is connected to the negative pressure chamber through the opening (2), a step (42) is formed between the sink (4) and the opening (2), and a plurality of the first connecting holes (41) are provided on the steps (42) at both ends of the opening (2).

7. The material transfer stroke adjustable gas distribution seat according to claim 1, characterized in that: The side wall of the body (1) is also provided with a pressure relief groove (7), and one end of the pressure relief groove (7) extends to the end surface of the body (1).

8. The material transfer stroke adjustable gas distribution seat according to claim 1, characterized in that: A plurality of positioning blocks (12) are arranged along the circumferential direction on the inner wall of one end of the body (1).

9. The material transfer stroke adjustable gas distribution seat according to any one of claims 1 to 8, characterized in that: The gas distribution seat also includes a base (6), the base (6) is fixedly arranged at one end of the body (1), and the base (6) is used to fix the gas distribution seat.

10. The material transfer stroke adjustable gas distribution seat according to claim 9, characterized in that: The base (6) is provided with a plurality of third connection holes (61) along the circumferential direction, and the third connection holes (61) cooperate with the second connection member.

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