CN117461883A - A kind of external spiral channel mandrel filter rod forming equipment and process - Google Patents

Abstract

The present application relates to the technical field of cigarette filter rod manufacturing, and specifically relates to an external spiral channel mandrel filter rod forming equipment and a process. The external spiral channel mandrel filter rod forming equipment includes a wire feeder, a heat exchanger and a heat exchanger arranged in sequence. Forming unit, cold forming unit and outer spiral groove forming unit; rely on the designed outer spiral groove forming unit to roll the preformed tow filter rod obtained by cooling and shaping the cold forming unit into the outer spiral groove to obtain a mandrel with an outer spiral groove filter rod. Compared with the existing straight channel hollow filter rod, the smoke travels along the spiral channel in the filter rod during the smoking process, creating a new smoking feeling.

Description

A kind of external spiral channel mandrel filter rod forming equipment and process

Technical field

This application mainly relates to the technical field of cigarette filter rod manufacturing equipment, and in particular to an external spiral channel mandrel filter rod forming equipment and process.

Background technique

Cigarette filter rods are mainly used in the filter structure of cigarettes. Existing cigarette filter rods are usually circular filter rods. Currently, there are also hollow circular filter rods with special-shaped patterns. The cross-section of the hollow filter rod mainly contains special-shaped The straight cavity structure of the pattern, the cavity flue is a straight channel. As people's needs gradually increase, the diversified and unique design of cigarette filter rods in cigarette design has also become the focus of research and development. Based on this, new filters Rod design and supporting filter rod forming equipment and processes have become the focus of those in this field.

Contents of the invention

In order to solve the above technical problems, the present invention provides a mandrel filter rod forming equipment and process with an external spiral channel.

The technical solutions provided by the invention are as follows:

A mandrel filter rod forming equipment with an outer spiral groove, including a wire feeder, a hot forming unit, a cold forming unit and an outer spiral groove forming unit arranged in sequence;

Both the thermoforming unit and the cold forming unit have molding cavities;

The wire feeder is used to output the wire bundle;

The thermoforming unit is used to heat and preform the filament bundle fed from the wire feeder to obtain the preformed filament bundle;

The cold forming unit is used to cool and shape the preformed tow to obtain a preformed tow filter rod;

The outer spiral groove forming unit is used to roll the outer periphery of the preformed tow filter rod to obtain a mandrel filter rod with an outer spiral groove.

Further, the external spiral groove forming unit includes a mounting plate base, and a first roller cutter, a second roller cutter and a driving module arranged on the mounting plate;

The first roller cutter includes a coaxially arranged first roller cutter and a first transmission wheel;

The second roller cutter includes a coaxially arranged second roller cutter and a second transmission wheel;

The first roller cutter and the second roller cutter are arranged oppositely, and a rolling opening matching the filter rod is formed between them;

The driving module includes a rotating power part and a driving wheel. The driving wheel is arranged on the output shaft of the rotating power part. A transmission belt is connected between the driving wheel, the first transmission wheel and the second transmission wheel. The driving module is used to drive the third driving wheel. The first roller cutter and the second roller cutter rotate.

Further, the outer spiral groove forming unit further includes a movable module, and the mounting plate base is deployed on the movable module.

Further, the first roller cutter includes a first roller, and the first roller is provided with a first roller groove along its circumferential direction; the second roller cutter includes a second roller, and the second roller is provided with a second roller along its circumferential direction. knives. It can be understood that the first roller cutter element and the second roller cutter element are arranged oppositely on the mounting plate base, and the first roller cutter channel on the first roller corresponds to the second roller cutter channel on the second roller.

Further, the filter rod forming equipment of the present application also includes a coating device for coating the surface of the mandrel filter rod rolled out of the outer spiral channel with molding paper; the coating equipment is arranged on the outlet side of the outer spiral groove forming unit . More preferably, it also includes a paper supply roller for providing the forming paper of the coating device.

Furthermore, the filter rod forming equipment of the present application also includes a slitting unit, which is docked at the outlet side of the coating equipment and is used to separate the mandrel filter rods with outer spiral channels after being coated with the molding paper. Cut the target filter rod into the required length.

Further, the wire feeder is a negative pressure wire feeder; the hot forming unit is connected to a hot steam source; and the cold forming unit is connected to a cold dry air source.

This application also provides a mandrel filter rod forming process with an external spiral channel, including the above-mentioned mandrel filter rod forming equipment with an external spiral channel, including opening, wire feeding, steam thermoforming, cold air forming and external spiral groove rolling step;

Specifically, the filament bundle is opened through the opening machine unit and the filament bundle is supplied to the wire feeder;

The wire bundle is introduced into the thermoforming unit for preforming through a wire feeder to obtain a preformed wire bundle;

The preformed tow is cooled and shaped through a cold forming unit to obtain a preformed tow filter rod;

The outer circumference of the preformed tow filter rod is rolled by the outer spiral groove forming unit to obtain a mandrel filter rod with an outer spiral groove.

Further, it also includes a molding paper covering step;

Specifically, the surface of the filter rod rolled with the outer spiral channel is coated with molding paper through the coating equipment.

Further, it also includes a filter rod cutting step,

Specifically, the filter rods coated with molding paper are cut into filter rods of required target specifications through a cutting unit.

Beneficial effects:

This application provides a mandrel filter rod forming equipment with an external spiral channel, which includes a wire feeder, a thermoforming unit, a cold forming unit and an external spiral groove forming unit arranged in sequence; relying on the designed external spiral groove forming unit, the cold forming unit The preformed tow filter rod obtained by cooling and shaping in the forming unit is rolled into an outer spiral groove to obtain a mandrel filter rod with an outer spiral groove. Compared with the existing straight channel hollow filter rod, the smoke travels along the spiral channel in the filter rod during the smoking process, creating a new smoking feeling.

Description of the drawings

In order to explain the embodiments of the present application or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments recorded in this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of a mandrel filter rod forming equipment with an outer spiral channel in this embodiment;

Figure 2 is a schematic structural diagram of the outer spiral groove forming unit in Figure 1;

Figure 3 is a side view of Figure 2;

Figure 4 is a front view of Figure 2;

Figure 5 is a schematic diagram of the rolling of the roller cutter and the tow filter rod in the external spiral groove forming unit in Figure 3;

Figure 6 is a schematic diagram of the two-dimensional plane combination of Figure 5;

Reference signs: 10. Wire feeder, 20. Thermoforming unit, 30. Cold forming unit, 40. External spiral groove forming unit, 41. Installation plate base, 42. First roller cutter, 421. First roller cutter Groove, 43, second roller cutter, 431, second roller cutter groove, 44, rolling port, 45, transmission belt, 46, driving wheel, 50, mobile module, 60, mandrel filter rod with outer spiral channel .

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application. , not all examples. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

It should be noted that when an element is referred to as being "fixed" or "disposed on" another element, it can be directly on the other element or indirectly provided on the other element; when an element is referred to as "connected" "To" another component, it may be directly connected to the other component or indirectly connected to the other component.

It should be understood that the terms "length", "width", "top", "bottom", "front", "back", "left", "right", "vertical", "horizontal", "top" The orientations or positional relationships indicated by , "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply what is meant. Devices or elements must have a specific orientation, be constructed and operate in a specific orientation and therefore are not to be construed as limiting.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of this application, "plurality" and "several" mean two or more, unless otherwise explicitly and specifically limited.

It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to coordinate with the content disclosed in the specification for the understanding and reading of people familiar with this technology, and are not used to limit the conditions for the implementation of this application. , it has no technical substantive significance. Any structural modifications, changes in proportions, or adjustments in size, without affecting the effectiveness and purpose of this application, should still fall within the scope of what is disclosed in this application. within the scope of the technical content.

Referring to Figures 1 to 6, an external spiral groove mandrel filter rod forming equipment includes a wire feeder 10, a thermoforming unit 20, a cold forming unit 30 and an external spiral groove forming unit 30 arranged in sequence;

Both the thermoforming unit and the cold forming unit have molding cavities;

The wire feeder is used to output the wire bundle;

The thermoforming unit is used to heat and preform the filament bundle fed from the wire feeder to obtain the preformed filament bundle;

The cold forming unit is used to cool and shape the preformed tow to obtain a preformed tow filter rod;

The outer spiral groove forming unit is used to roll the outer periphery of the preformed tow filter rod to obtain a mandrel filter rod 60 with an outer spiral groove.

In the above solution, the designed external spiral groove forming unit is used to roll the preformed tow filter rod obtained by cooling and shaping the cold forming unit into the external spiral groove to obtain a mandrel filter rod with an external spiral channel. Compared with the existing straight channel hollow filter rod, the smoke travels along the spiral channel in the filter rod during the smoking process, creating a new smoking feeling.

It can be understood that, in order to stabilize the cooling and shaping of the preformed tow filter rod, multiple cold forming units can be set up in sequence to perform multiple cooling and shaping.

As a preferred embodiment, the outer spiral groove forming unit includes a mounting plate base 41, a first roller cutter 42, a second roller cutter 43 and a driving module arranged on the mounting plate base;

The first roller cutter includes a coaxially arranged first roller cutter and a first transmission wheel;

The second roller cutter includes a coaxially arranged second roller cutter and a second transmission wheel;

The first roller cutter and the second roller cutter are arranged oppositely, and a rolling opening matching the filter rod is formed between them;

The drive module includes a rotating power part and a driving wheel. The driving wheel is arranged on the output shaft of the rotating power part. A transmission belt 45 is provided between the driving wheel 46, the first transmission wheel and the second transmission wheel. The driving module is used for The first roller cutter and the second roller cutter are driven to rotate.

Further, the outer spiral groove forming unit further includes a mobile module, and the mounting plate base is deployed on the mobile module 50 . The mobile module is preferably an existing XYZ three-directional mobile module.

As a preferred embodiment, the first roller cutter includes a first roller, and the first roller is provided with a first roller groove 421 along its circumferential direction; the second roller cutter includes a second roller, and the second roller is provided along its circumferential direction. A second roller groove 431 is provided. It can be understood that the first roller cutter element and the second roller cutter element are arranged oppositely on the mounting plate base, and the first roller cutter channel on the first roller corresponds to the second roller cutter channel on the second roller.

One end of the preformed tow filter rod enters the outer spiral groove forming unit from the rolling port 44. The first and second roller cutters of the rotating operation, the first roller cutter groove and the second roller cutter groove act on the preform The outer circumference of the tow filter rod is rolled on the outer circumference of the filter rod to form an external spiral channel; see Figure 5 and Figure 6 for details.

It should be noted that the shafts of the first roller cutter and the second roller cutter realize their rotational freedom through sleeve bearings; the shafts are limited and fixedly installed through the bearings. It can be understood that a guide plate can be provided between the cold forming unit and the outer spiral groove forming unit. One end of the guide plate is connected to the outlet end of the cold forming unit, and the other end of the guide plate is connected to the side of the rolling port. The guide plate has a tow filter and a guide plate. The slideway matching the diameter of the rod facilitates the tow filter rod to slide into the rolling port of the outer spiral groove forming unit along the slideway of the guide plate.

Further, the filter rod forming equipment of the present application also includes a coating device for coating the surface of the mandrel filter rod rolled out of the outer spiral channel with molding paper; the coating equipment is arranged on the outlet side of the outer spiral groove forming unit . More preferably, it also includes a paper supply roller for providing the forming paper of the coating device. Wrapping the molding paper and binding it with the coating equipment can effectively prevent the tows from tearing and spreading, and better protect the formed filter rods. More preferably, it also includes a shaped filter rod conveying device to convey the formed filter rod to the coating device for coating with forming paper. It should be noted that the shaped filter rod conveying device is an existing technical equipment, with reference to the existing negative pressure adsorption filter rod conveying equipment.

Furthermore, the filter rod forming equipment of the present application also includes a slitting unit, which is docked at the outlet side of the coating equipment and is used to separate the mandrel filter rods with outer spiral channels after being coated with the molding paper. Cut the target filter rod into the required length.

Further, the wire feeder is a negative pressure wire feeder; the hot forming unit is connected to a hot steam source; the cold forming unit is connected to a cold dry air source; the hot forming unit is a steam forming mold base, and the cold forming unit is Air-conditioning mold base.

This application also provides a mandrel filter rod forming process with an external spiral channel, including the above-mentioned mandrel filter rod forming equipment with an external spiral channel, including opening, wire feeding, steam thermoforming, cold air forming and external spiral groove rolling step;

Specifically, the filament bundle is opened through the opening machine unit and the filament bundle is supplied to the wire feeder;

The wire bundle is introduced into the thermoforming unit for preforming through a wire feeder to obtain a preformed wire bundle;

The preformed tow is cooled and shaped through a cold forming unit to obtain a preformed tow filter rod;

The outer circumference of the preformed tow filter rod is rolled by the outer spiral groove forming unit to obtain a mandrel filter rod with an outer spiral groove.

Further, it also includes a molding paper covering step;

Specifically, the surface of the filter rod rolled with the outer spiral channel is coated with molding paper through the coating equipment.

Further, it also includes a filter rod cutting step,

Specifically, the filter rods coated with molding paper are cut into filter rods of required target specifications through a cutting unit.

The hollow filter rod molding process with external spiral channels of the present application can shape and manufacture a mandrel filter rod with external spiral channels, and the overall process is simple.

It should be noted that the opening machine, wire feeder, steam forming die base, cold air forming die base, slitting unit, coating equipment and paper feeding roller equipment in this application are all existing technical components; the application documents are not detailed. The description part refers to the conventional setting of the prior art.

The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be practiced in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A mandrel filter rod forming equipment with an outer spiral groove, characterized in that it includes a wire feeder, a hot forming unit, a cold forming unit and an outer spiral groove forming unit arranged in sequence; Both the thermoforming unit and the cold forming unit have molding cavities; The wire feeder is used to output the wire bundle; The thermoforming unit is used to heat and preform the filament bundle fed from the wire feeder to obtain the preformed filament bundle; The cold forming unit is used to cool and shape the preformed tow to obtain a preformed tow filter rod; The outer spiral groove forming unit is used to roll the outer periphery of the preformed tow filter rod to obtain a mandrel filter rod with an outer spiral groove. 2. The external spiral groove mandrel filter rod forming equipment according to claim 1, wherein the external spiral groove forming unit includes a mounting plate base and a first roller cutter arranged on the mounting plate base. , second roller cutter and drive module; The first roller cutter includes a coaxially arranged first roller cutter and a first transmission wheel; The second roller cutter includes a coaxially arranged second roller cutter and a second transmission wheel; The first roller cutter and the second roller cutter are arranged oppositely, and a rolling opening matching the filter rod is formed between them; The driving module includes a rotating power part and a driving wheel. The driving wheel is arranged on the output shaft of the rotating power part. A transmission belt is connected between the driving wheel, the first transmission wheel and the second transmission wheel. The driving module is used to drive the third driving wheel. The first roller cutter and the second roller cutter rotate. 3. The external spiral groove mandrel filter rod forming equipment according to claim 2, wherein the external spiral groove forming unit further includes a movable module, and the mounting plate base is deployed on the movable module. 4. The external spiral channel mandrel filter rod forming equipment according to claim 2, characterized in that the first roller cutter includes a first roller, and the first roller is provided with a first roller cutter groove along its circumferential direction. ; The second roller cutter includes a second roller, and the second roller is provided with a second roller cutter groove along its circumferential direction. 5. The outer spiral channel mandrel filter rod forming equipment as claimed in claim 2, characterized in that it also includes a coating device for coating the surface of the mandrel filter rod rolled out of the outer spiral channel with molding paper. ; The coating equipment is arranged on the exit side of the outer spiral groove forming unit. 6. The external spiral channel mandrel filter rod forming equipment as claimed in claim 5, further comprising a slitting unit connected to the outlet side of the coating equipment for converting the coating into After forming the paper, the mandrel filter rod with the outer spiral channel is cut into target filter rods of the required length. 7. The external spiral channel mandrel filter rod forming equipment according to any one of claims 1 to 6, characterized in that the wire feeder is a negative pressure wire feeder; the thermoforming unit is connected with Hot steam source; the cold forming unit is connected to a cold dry air source. 8. An external spiral channel mandrel filter rod forming process, including the external spiral channel mandrel filter rod forming equipment according to any one of claims 1 to 7, characterized in that it includes opening, feeding wire, steam thermoforming, cold air forming and outer spiral channel rolling steps; Specifically, the filament bundle is opened through the opening machine unit and the filament bundle is supplied to the wire feeder; The wire bundle is introduced into the thermoforming unit for preforming through a wire feeder to obtain a preformed wire bundle; The preformed tow is cooled and shaped through a cold forming unit to obtain a preformed tow filter rod; The outer circumference of the preformed tow filter rod is rolled by the outer spiral groove forming unit to obtain a mandrel filter rod with an outer spiral groove. 9. The outer spiral channel mandrel filter rod forming process as claimed in claim 8, characterized in that it also includes a forming paper covering step; Specifically, the surface of the filter rod rolled with the outer spiral channel is coated with molding paper through the coating equipment. 10. The outer spiral channel mandrel filter rod forming process according to claim 9, characterized in that it also includes a filter rod cutting step, Specifically, the filter rods coated with molding paper are cut into filter rods of required target specifications through a cutting unit.