Filter stick roundness adjusting device and filter stick forming machine

Abstract

The utility model provides a filter stick roundness adjusting device which is arranged close to a discharge port of a filter stick forming machine and comprises an adjusting piece, a first guide hole is formed in the adjusting piece, and a filter stick output from the discharge port can penetrate through the interior of the first guide hole; the diameter of the first guide hole is gradually reduced in the conveying direction of the filter stick, and the minimum diameter of the first guide hole is equal to the diameter of the filter stick with the standard size; when the filter stick penetrates through the first guide hole, the outer wall of the filter stick is in contact with the first guide hole; the acting end of the cooling mechanism faces the output end of the guide hole, and the cooling mechanism is used for cooling the wrapping layer lap joint opening of the filter stick so as to promote solidification of the mucilage glue at the wrapping layer lap joint opening. The roundness of the filter stick can be improved. The utility model further provides a filter stick forming machine.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter stick processing technical field, especially a kind of filter stick roundness adjusting device and filter stick forming machine. BACKGROUND

[0002] Filter stick is the important component of cigarette, and the appearance of filter stick directly affects the quality of cigarette. In prior art, due to the fact that the filter stick wrapping layer is not firmly bonded or the fiber bundle inside the filter stick expands, the wrapping layer lap position is protruding, the diameter of the filter stick is expanded, the roundness is poor, and the appearance of the filter stick is seriously affected. SUMMARY

[0003] The utility model discloses a kind of filter stick roundness adjusting device and filter stick forming machine, which can improve the roundness of filter stick.

[0004] To solve the above technical problems, the embodiment of the utility model provides a kind of filter stick roundness adjusting device, is set to the discharge port of filter stick forming machine, and adjusting device includes:

[0005] Adjusting part, first guide hole is provided on the adjusting part, and the filter stick output from the discharge port can pass through the inside of first guide hole;The diameter of first guide hole gradually decreases along the conveying direction of filter stick, and the minimum diameter of first guide hole is equal to the diameter of standard size filter stick;When filter stick passes through first guide hole, the outer wall of filter stick is in contact with first guide hole;

[0006] Cooling mechanism, its acting end is towards the output end of first guide hole, for the wrapping layer lap joint of filter stick Cooling, to promote the adhesion solidification of wrapping layer lap joint.

[0007] Optionally, a plurality of elastic sheets are provided on the adjusting part, and the elastic sheets are located on the end face of the output end of first guide hole;Each elastic sheet is arranged along the circumference of guide hole, and the inner wall of each elastic sheet is enclosed to form second guide hole;The diameter of second guide hole gradually decreases along the conveying direction, and the maximum diameter of second guide hole is less than or equal to the diameter of standard size filter stick.

[0008] Optionally, the adjusting device includes:

[0009] Base, is located on the discharge port of filter stick forming machine, and the through hole that is communicated with the discharge port is provided on the base;

[0010] Adjusting part, between the discharge port and the base, the adjusting part is detachably connected with the base;Elastic sheet is inserted into the through hole.

[0011] Optionally, a plurality of first threaded holes penetrating the side wall of the through hole are arranged on the side wall of the through hole, the number of the first threaded holes is equal to the number of the elastic pieces and the positions of the first threaded holes correspond to the positions of the elastic pieces one by one, an adjusting bolt is arranged in each first threaded hole, and the adjusting bolt can press against the corresponding elastic piece when the adjusting bolt is screwed, so as to extrude the filter rod.

[0012] Optionally, the number of the elastic pieces and the number of the first threaded holes are both four.

[0013] Optionally, the adjusting member and the base are both made of stainless steel.

[0014] Optionally, the elastic pieces are made of brass.

[0015] Optionally, a connecting hole extending along the conveying direction is arranged on the adjusting member, a second threaded hole extending along the conveying direction is arranged on the end face of the through hole, and the connecting hole and the second threaded hole are connected by a bolt.

[0016] Optionally, the cooling mechanism is a fan.

[0017] The embodiment of the utility model also provides a filter rod forming machine which comprises the adjusting device.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The embodiment of the utility model sets the filter rod roundness adjusting device on the output end of the filter rod forming machine, so that the filter rod output by the filter rod forming machine passes through the guide hole. The minimum diameter of the guide hole is equal to the diameter of the filter rod with a standard size, the guide hole can exert a radial force on the filter rod passing through the guide hole, the overlap joint of the wrapping layer of the filter rod is extruded, the wrapping layer of the filter rod is firmly bonded, and the overlap joint of the wrapping layer is prevented from protruding. In addition, under the extrusion of the guide hole, the wrapping layer strengthens the restraint on the fiber bundle inside the wrapping layer, and the fiber bundle inside the wrapping layer can prevent the diameter of the filter rod from being enlarged. The application also cools the overlap joint of the wrapping layer of the cooling mechanism, accelerates the solidification of the viscose in the overlap joint, and prevents the viscose from loosening to weaken the restraint of the wrapping layer. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Fig. 1 shows a structure view of the adjusting device provided by an embodiment of the utility model;

[0021] Figure 2 Fig. 2 shows a sectional view of the adjusting device provided by an embodiment of the utility model;

[0022] Figure 3 Fig. 3 shows a structure view of the adjusting member and the elastic piece provided by an embodiment of the utility model.

[0023] Reference signs:

[0024] 1. filter stick, 2. adjusting member, 3. first guide hole, 4. elastic sheet, 5. second guide hole, 6. base, 7. through hole, 8. first threaded hole, 9. adjusting bolt, 10. second threaded hole, 11. connecting hole, 12. cooling hole. DETAILED DESCRIPTION

[0025] The above description is only used to illustrate the specific embodiments of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the disclosure. Although the description of the present application is combined with the preferred embodiments, it does not mean that the features of the present application are limited to the embodiments. On the contrary, the purpose of introducing the present application with the embodiments is to cover other options or modifications that can be extended based on the claims of the present application. In order to provide a deep understanding of the present application, many specific details will be included in the following description. The present application can also be implemented without using these details. In addition, in order to avoid confusion or obscure the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0026] It should be noted that in this specification, similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0027] In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] The terms "first", "second", and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present embodiment, it should also be noted that unless otherwise explicitly specified and limited, the terms "provided", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present embodiment can be understood according to the specific circumstances.

[0030] In order to make the purpose, technical scheme and advantages of the utility model clearer, the embodiments of the utility model will be described in further detail below with reference to the drawings.

[0031] The embodiments of the utility model provide a kind of filter rod roundness adjusting device, adjusting device is close to the discharge port of filter rod forming machine and is arranged, adjusting device includes adjusting part 2 and cooling mechanism. Figure 1 As shown in the drawing, adjusting part 2 is equipped with first guide hole 3, and the filter rod 1 output by the discharge port can pass through the inside of first guide hole 3. Along the conveying direction of filter rod 1, the diameter of first guide hole 3 gradually decreases, and the minimum diameter of first guide hole 3 is equal to the diameter of the filter rod 1 of standard size. The downstream of filter rod forming machine is equipped with traction mechanism, for pulling filter rod 1 to run along the conveying direction (as shown in the direction X of Figure 1 And Figure 2 Because the temperature in filter rod forming machine is higher than room temperature, the adhesive of lap joint is not completely solidified, under the swelling action of fiber bundle in filter rod 1, at least part of the diameter of filter rod 1 will be greater than standard size, so when filter rod 1 passes through first guide hole 3, the outer wall of filter rod 1 will be in contact with first guide hole 3, so that first guide hole 3 exerts radial extrusion on the outer wall of filter rod 1. The acting end of cooling mechanism faces the output end of first guide hole 3. Exemplarily, the cooling mechanism is a fan, and the acting end of the cooling mechanism is a gas outlet, which can output low-temperature gas outward, and the low-temperature gas acts on the lap joint of the wrapping layer of filter rod 1, so as to cool the lap joint and promote the solidification of the adhesive at the lap joint of the wrapping layer.

[0032] By setting the minimum diameter of first guide hole 3 to be equal to the diameter of filter rod 1 of standard size, the radial force can be exerted on the filter rod 1 passing through the inside of first guide hole 3 by first guide hole 3, so as to extrude the lap joint of the wrapping layer of filter rod 1, make the wrapping layer of filter rod 1 firmly bonded, and prevent the lap joint position of the wrapping layer from protruding. Under the extrusion action of first guide hole 3, the lap joint can be tightened along the circumference of filter rod 1, so as to reduce the diameter of filter rod 1 to the standard diameter. In addition, under the extrusion action of the guide hole, the restraint of the wrapping layer on the fiber bundle inside it is strengthened, which can prevent the fiber bundle inside the wrapping layer from expanding the diameter of filter rod 1. In addition, the lap joint of the wrapping layer is cooled by the cooling mechanism, which accelerates the solidification of the adhesive inside the lap joint, prevents the adhesive inside the lap joint from loosening and weakening the restraint of the wrapping layer on the fiber bundle inside it, and further prevents the diameter of filter rod 1 from increasing.

[0033] Further, as shown in the drawing, Figure 1 And 2As shown, the adjusting member 2 is provided with a plurality of elastic pieces 4 extending along the X direction, and the elastic pieces 4 are located on the end face of the output end of the first guide hole 3. The elastic pieces 4 are arranged along the circumference of the guide hole (as shown in Figure 3 As shown, the inner wall of each elastic piece 4 encloses to form a second guide hole 5. The diameter of the second guide hole 5 gradually decreases along the conveying direction, and is less than or equal to the diameter of the filter rod 1 of the standard size. Specifically, each elastic piece 4 has a elastic force towards the inside of the second guide hole 5. When the filter rod 1 is output from the first guide hole 3, the adhesive of the lap joint may not be completely solidified, and since the fiber bundle inside the filter rod 1 has a tendency to expand outward, it is easy to loosen the lap joint, so when the filter rod 1 passes through the second guide hole 5, it can push the elastic pieces 4 outward along the radial direction of the second guide hole 5, and at the same time the elastic pieces 4 apply extrusion force to the outer wall of the filter rod 1 to offset the outward expansion force of the fiber bundle inside the filter rod 1, preventing the diameter of the filter rod 1 from being expanded by the fiber bundle.

[0034] Further, as shown in Figure 1 and Figure 2 The adjusting device comprises a base 6 and an adjusting member 2. The base 6 is arranged on the discharge port of the filter rod forming machine, and the base 6 is provided with a through hole 7 communicating with the discharge port. The adjusting member 2 is arranged between the discharge port and the base 6, and is detachably connected with the base 6. The elastic pieces 4 are inserted into the through hole 7. Specifically, when the adjusting member 2 is connected with the base 6, the axis of the first guide hole 3 coincides with the axis of the through hole 7. The discharge port of the filter rod forming machine communicates with the discharge channel, the axis of the through hole 7 coincides with the axis of the discharge channel, and the filter rod 1 output by the filter rod forming machine can enter the inside of the first guide hole 3 along the conveying direction.

[0035] Further, as shown in Figure 1 and Figure 2 The base 6 is further provided with a cooling hole 12 communicating with the through hole 7. The cooling mechanism can output low-temperature gas towards the elastic pieces 4 through the cooling hole 12 to reduce the temperature of the elastic pieces 4, so as to absorb the heat of the adhesive in the lap joint and accelerate the solidification of the adhesive.

[0036] Further, as shown in Figure 1 and Figure 2 The side wall of the through hole 7 is provided with a plurality of first threaded holes 8 penetrating through the side wall of the through hole 7, the number of the first threaded holes 8 is equal to the number of the elastic pieces 4 and corresponds one by one, and the first threaded holes 8 are provided with adjusting bolts 9, which can press against the corresponding elastic pieces 4 when screwed in, so as to cause elastic deformation of the elastic pieces 4, thereby adjusting the size of the minimum diameter of the second guide hole 5, and further adjusting the extrusion force of the elastic pieces 4 on the filter rod 1.

[0037] Further, the number of the elastic pieces 4 and the first threaded holes 8 is 4.

[0038] Further, the adjusting member 2 and the base 6 are made of stainless steel, and the elastic sheet 4 is made of brass.

[0039] Further, as shown in Figure 1 the adjusting member 2 is provided with a connecting hole 11 extending along the conveying direction, and the end face of the through hole 7 is provided with a second threaded hole 10 extending along the conveying direction, and the connecting hole 11 and the second threaded hole 10 are connected by a bolt.

[0040] The embodiment of the utility model further provides a filter stick forming machine which comprises any one of the adjusting devices.

[0041] Although the utility model has been illustrated and described with reference to certain preferred embodiments thereof, it should be understood that the above description is a further detailed description of the utility model in combination with specific embodiments, and the specific implementation of the utility model cannot be limited to these descriptions. Those skilled in the art can make various changes in form and details, including making a number of simple derivations or substitutions, without departing from the spirit and scope of the utility model.

Claims

1. A filter rod roundness adjustment device, which is provided near a discharge port of a filter rod making machine, characterized in that, The adjusting device comprises: An adjusting member is provided with a first guide hole, and the filter rod output from the discharge port can pass through the inside of the first guide hole; the diameter of the first guide hole gradually decreases along the conveying direction of the filter rod, and the minimum diameter of the first guide hole is equal to the diameter of the filter rod with a standard size; when the filter rod passes through the first guide hole, the outer wall of the filter rod is in contact with the first guide hole; A cooling mechanism is arranged at the output end of the first guide hole, and is used for cooling the lap joint of the wrapping layer of the filter rod to promote the solidification of the adhesive at the lap joint.

2. The adjustment device of claim 1, wherein, A plurality of elastic sheets are arranged on the adjusting member, and the elastic sheets are arranged on the end face of the output end of the first guide hole; the elastic sheets are arranged in a circumferential direction of the guide hole, and the inner wall of each elastic sheet forms a second guide hole; the diameter of the second guide hole gradually decreases along the conveying direction, and the maximum diameter of the second guide hole is less than or equal to the diameter of the filter rod with a standard size.

3. The adjustment device of claim 2, wherein, The adjusting device comprises: A base is arranged on the discharge port of the filter rod forming machine, and the base is provided with a through hole in communication with the discharge port; The adjusting member is arranged between the discharge port and the base, and the adjusting member is detachably connected with the base; the elastic sheets are inserted into the through hole.

4. The adjustment device of claim 3, wherein, A plurality of first threaded holes are arranged on the side wall of the through hole and penetrate the side wall of the through hole, the number of the first threaded holes is equal to the number of the elastic sheets and one-to-one corresponding, an adjusting bolt is arranged in each first threaded hole, and the adjusting bolt can be pressed on the corresponding elastic sheet when being screwed, so as to extrude the filter rod.

5. The adjustment device of claim 4, wherein, The number of the elastic sheets and the first threaded holes is 4.

6. The adjustment device of claim 5, wherein, The adjusting member and the base are made of stainless steel.

7. The adjustment device of claim 6, wherein, The elastic sheets are made of brass.

8. The adjustment device of claim 7, wherein, A connecting hole is arranged on the adjusting member and extends along the conveying direction, a second threaded hole is arranged on the end face of the through hole and extends along the conveying direction, and the connecting hole and the second threaded hole are connected by a bolt.

9. The adjustment device of any one of claims 1 to 8, wherein, The cooling mechanism is a fan.

10. A filter rod maker characterized by The adjusting device comprises any one of claims 1 to 9. The adjusting device comprises any one of claims 1 to 9.

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