CN211337060U

CN211337060U - Sizing material dispensing equipment

Info

Publication number: CN211337060U
Application number: CN201922184156.0U
Authority: CN
Inventors: 李靖; 李振中; 胡玉涛
Original assignee: Beijing Tianshan New Material Technology Co ltd
Current assignee: Beijing Tianshan New Material Technology Co ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-08-25
Anticipated expiration: 2029-12-09

Abstract

The utility model relates to a sizing material dispensing equipment. The apparatus comprises: a holder adapted to receive a plurality of cylindrical containers; and a plurality of push rods mounted on the bracket, each push rod being configured to be translatable in a lengthwise direction thereof, and a transmission device configured to receive a driving force from the power source and to transmit the driving force to the plurality of push rods at different transmission ratios, respectively, such that the plurality of push rods translate at different speeds.

Description

Sizing material dispensing equipment

Technical Field

The utility model relates to a fluid distribution field, more specifically relates to a sizing material dispensing equipment.

Background

The packaging form of the adhesive comprises barreling, tube packaging and the like, wherein the tube packaging comprises toothpaste tube packaging, plastic tube packaging and flexible packaging. For example, in the case of a flexible package in the shape of sausage, after the adhesive is used up, the volume occupied by the flexible package is greatly reduced by compressing the adhesive, so that the cost in various aspects such as transportation, hazardous waste treatment and the like can be reduced, the cost is saved, and the flexible package is favored by more and more users.

Currently, most of the soft packages on the market are single-component, while multi-component soft packages are few. The first reason is that a racking machine can only pack out flexible packages with one diameter specification; secondly, the existing sizing material distribution equipment can only distribute a plurality of soft packages with different components and the same length. However, when the proportions of the different components in the final dispensed mixed size are required to be different, if the lengths of the individual flexible packages are the same, the diameters of the individual flexible packages are inevitably different, and when the diameters are different, different dispensers are required to dispense the flexible packages with different diameters, which may result in an unreasonable increase in equipment cost.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to solve the above problems and/or other drawbacks in the prior art.

Therefore, the utility model provides a sizing material dispensing equipment, include: a holder adapted to receive a plurality of cylindrical containers; and a plurality of push rods mounted on the bracket, each push rod being configured to be translatable in a lengthwise direction thereof, and a transmission device configured to receive a driving force from the power source and to transmit the driving force to the plurality of push rods at different transmission ratios, respectively, such that the plurality of push rods translate at different speeds.

According to an exemplary configuration, each of the push rods includes a toothed section, the transmission includes a plurality of rotatable spur gears, each of the spur gears meshes with the toothed section of a corresponding one of the push rods, and a product of a rotational speed and an outer diameter of each of the plurality of spur gears is different from a product of a rotational speed and an outer diameter of any other one of the plurality of spur gears.

According to the utility model discloses an on the other hand provides a sizing material dispensing equipment, include: a holder adapted to receive a plurality of cylindrical containers; a plurality of push rods mounted on the bracket, each push rod configured to translate along its lengthwise direction and comprising a toothed section; and a plurality of rotatable cylindrical gears mounted on the carrier, each cylindrical gear being engaged with the toothed section of a corresponding one of the push rods to enable transmission of a driving force from each cylindrical gear to the corresponding push rod, a product of a rotational speed and an outer diameter of each of the plurality of cylindrical gears being different from a product of a rotational speed and an outer diameter of any other of the plurality of cylindrical gears.

According to one exemplary configuration, the plurality of cylindrical gears are configured to be rotatable at the same rotational speed and different in outer diameter.

In the above exemplary configuration, the glue dispensing apparatus or the transmission may further include a plurality of rotating wheels having the same outer diameter, each rotating wheel being coaxially arranged with a corresponding one of the cylindrical gears to be rotatable at the same rotational speed as the cylindrical gear, at least one of the plurality of rotating wheels being configured to receive a driving force from the power source and to drive the other rotating wheels of the plurality of rotating wheels to rotate at the same rotational speed.

In the above exemplary configuration, the plurality of wheels may include at least one of: gears meshed with each other; a gear engaged with the same gear; the rotating wheels are in transmission connection with each other through a belt or a chain; a worm wheel engaged with the same worm; and combinations of the foregoing.

According to another exemplary configuration, the plurality of cylindrical gears are configured to be rotatable at different rotational speeds and have the same outer diameter.

According to still another exemplary configuration, the plurality of cylindrical gears are configured to be rotatable at different rotation speeds and different in outer diameter.

In the above exemplary configuration, the glue dispensing apparatus or the transmission may further include a plurality of rotating wheels having different outer diameters, each rotating wheel being coaxially arranged with a corresponding one of the cylindrical gears to be rotatable at the same rotational speed as the cylindrical gear, at least one of the plurality of rotating wheels being configured to receive a driving force from the power source and to drive the other rotating wheels of the plurality of rotating wheels to rotate at different rotational speeds.

In the above exemplary configuration, the plurality of wheels may include at least one of: gears meshed with each other; a gear engaged with the same gear; the rotating wheels are in transmission connection with each other through a belt or a chain; and combinations of the foregoing.

According to one exemplary configuration, each of the push rods includes a threaded section, the transmission includes a plurality of rotatable wheels having central threaded through holes, the threaded section of each of the push rods is cooperatively engaged in the central threaded through hole of a corresponding one of the wheels, and a product of a lead of the threaded section of each of the push rods and a rotational speed of the wheel corresponding to the one of the push rods is different from a product of a lead of the threaded section of any of the other push rods and a rotational speed of the wheel corresponding to the one of the other push rods.

According to the utility model discloses a still another aspect provides a sizing material dispensing equipment, include: a holder adapted to receive a plurality of cylindrical containers; a plurality of push rods mounted on the bracket, each push rod configured to translate along its lengthwise direction and comprising a threaded section; and a plurality of rotatable rollers mounted on the bracket and having central threaded through-holes, the threaded section of each pushrod being cooperatively engaged in the central threaded through-hole of a corresponding one of the rollers to enable transmission of driving force from each roller to the corresponding pushrod, the product of the lead of the threaded section of each pushrod and the rotational speed of the roller corresponding to the pushrod being different from the product of the lead of the threaded section of any other pushrod and the rotational speed of the roller corresponding to any other pushrod.

According to an exemplary configuration, the lead of the threaded sections of the plurality of pushrods are different from each other, the outer diameters of the plurality of wheels are the same as each other, at least one of the plurality of wheels is configured to receive a driving force from a power source and to drive the other wheels of the plurality of wheels to rotate at the same rotational speed, the plurality of wheels includes at least one of: gears meshed with each other; a gear engaged with the same gear; the rotating wheels are in transmission connection with each other through a belt or a chain; a worm wheel engaged with the same worm; and combinations of the foregoing.

According to another exemplary configuration, the lead of the threaded sections of the plurality of pushrods are the same as each other, the outer diameters of the plurality of wheels are different from each other, at least one of the plurality of wheels is configured to receive a driving force from a power source and to drive the other wheels of the plurality of wheels to rotate at different rotational speeds, and the plurality of wheels includes at least one of: gears meshed with each other; a gear engaged with the same gear; the rotating wheels are in transmission connection with each other through a belt or a chain; and combinations of the foregoing.

According to one exemplary configuration, the glue dispensing apparatus may further comprise the plurality of cylindrical containers, each cylindrical container being configured to be movable from a first position in which it is received in the stand to a second position in which it is adapted to receive a cylindrical flexible package containing glue to be dispensed therein.

In the above exemplary configuration, the plurality of tubular containers may be of the same diameter to respectively receive a plurality of tubular flexible packages of the same diameter and different lengths, and the plurality of pushers are configured to dispense a first size from one of the plurality of tubular containers at a first volumetric flow rate and a second size from another of the plurality of tubular containers at a second volumetric flow rate different from the first volumetric flow rate.

According to one exemplary configuration, the size dispensing apparatus may further include a manifold mounted at the forward end of the support and in fluid communication with the interior volume of each cylindrical container.

According to one exemplary configuration, the glue dispensing apparatus may further include a motor coupled to the bracket and configured to provide a driving force to the transmission.

The utility model discloses still related to a method for utilizing sizing material dispensing equipment as above to distribute sizing material, including following step: respectively placing a plurality of cylindrical flexible packages with the same diameter and different lengths into a plurality of cylindrical containers of the sizing material distribution equipment; and operating the size dispensing apparatus to dispense size from the plurality of flexible tubular packages at different volumetric flow rates from one another by a plurality of pushers of the size dispensing apparatus.

The utility model discloses think of and set up a special design's transmission in sizing material dispensing equipment, it can transmit the drive power that comes from the power supply with the drive ratio of difference respectively and give the corresponding many push rods of a plurality of soft-packings that are equipped with different component sizing materials separately, with the translation of each push rod with different speed of control, thereby can utilize each push rod to distribute away the sizing material in the soft-packings of a plurality of different length with the volume flow of difference each other all the time in step, just so can realize the different proportion distribution of various component sizing materials under the condition that adopts a plurality of soft-packings that the diameter is the same, and then realize using a racking machine just can satisfy the sizing material partial shipment requirement of different proportions.

In the present invention, "sizing material" refers to viscous fluids such as adhesives, sealants, and the like; "plurality" means two or more; "rotational speed" refers to angular velocity; "front" and "rear" respectively mean located or directed forward and rearward with respect to the direction in which the glue is dispensed from the glue dispensing apparatus.

Drawings

The various features, advantages and technical effects of the present invention will become more apparent from the following description of exemplary embodiments thereof with reference to the attached drawings, in which:

FIG. 1 is an overall view of a sizing dispensing device according to one embodiment of the present invention;

FIG. 2 is a partially exploded view of the size dispensing apparatus shown in FIG. 1;

FIG. 3 illustrates a first exemplary configuration of at least a portion of a transmission in a stock dispensing apparatus according to the present disclosure;

fig. 4 shows a second exemplary configuration of at least a part of a transmission in a glue dispensing apparatus according to the invention.

The figures are purely diagrammatic and not drawn to scale, and moreover they show only those parts which are necessary for the elucidation of the invention, while other parts may be omitted or merely mentioned briefly. That is, the present invention may include other components or elements in addition to those shown in the drawings.

Detailed Description

The present invention will be further described with reference to specific examples, which are only preferred embodiments of the present invention and are not intended to limit the present invention.

Fig. 1 and 2 show an exemplary glue dispensing apparatus 1 according to the invention. The glue dispensing apparatus 1 comprises a frame 2 as well as

push rods

31, 32 and a transmission 7. The carrier 2 forms the main framework of the glue dispensing device 1, on which other devices and components of the glue dispensing device 1 can be mounted. For example, the

push rods

31, 32 and the transmission 7 are mounted on the bracket 2. In addition, the support 2 is configured and adapted to receive two

cylindrical containers

41, 42 containing the glue to be dispensed. In the illustrated embodiment, the support 2 is in the form of a hand-held glue gun as a whole, but the invention is not limited thereto, and the support 2 may be in any portable or stationary form.

In the illustrated embodiment, the

cylindrical containers

41, 42 are arranged in the holder 2 in parallel with the

push rods

31, 32. The

push rods

31, 32 are arranged in the

cylindrical containers

41, 42, respectively, and each

push rod

31, 32 is configured to be able to push the glue to be dispensed out of a corresponding one of the

cylindrical containers

41, 42 by translation along its axial direction (i.e. the longitudinal direction of the push rod, coinciding with the longitudinal direction of the cylindrical container). For this reason, each of the

cylindrical containers

41, 42 is open at both ends thereof in the longitudinal direction (taking the cylindrical container 41 as an example, the front end 412 and the rear end 411 thereof shown in fig. 2). The

push rods

31, 32 can push the glue to be dispensed out of the respective front ends of the

tubular containers

41, 42, respectively, for example by means of

push plates

311, 321 fixed at their respective front ends. In the illustrated embodiment, the

cylindrical containers

41 and 42 have the same diameter, but cylindrical containers having different diameters may be used as necessary.

The apparatus 1 may comprise as a part thereof

cylindrical containers

41, 42. In this case, the

tubular containers

41, 42 may be configured to be movable from a first position received in the stand 2 to a second position facilitating loading of the tubular flexible package containing the glue to be dispensed into the tubular containers and then to be moved back to the first position received in the stand 2 for glue dispensing. For example, the

tubular containers

41, 42 can be pivoted from said first position to said second position towards the outside of the support 2 about an axis or fulcrum on which they are mounted on the support 2. The

cylindrical containers

41, 42 may be moved independently with respect to each other or may be connected as a unit for quick and collective movement. Alternatively, it is also conceivable that the

tubular containers

41, 42 are themselves plastic tubes directly filled with a predetermined amount of glue, in which case they are not an integral part of the apparatus 1, but are merely loaded in the frame 2 and not attached to the frame 2.

The transmission 7 is configured to receive a driving force from the power source and transmit the driving force to the respective push rods to cause them to translate. As a power source, the motor 6 may be used, which is electrically connected with a battery or an external power source for supplying power thereto. The motor 6 is drivingly connected to the transmission 7 to provide a driving force thereto. In case a battery is used, the motor 6 and the battery may be adapted to be mounted together on the holder 2, in particular in the form of a glue gun, for example arranged in the handle of the glue gun. The motor 6 may be directly electrically connected to an external power source without the use of a battery. Those skilled in the art will readily appreciate that other forms of power sources may be used, such as manual or pneumatic devices.

For dispensing the glue, the apparatus 1 further comprises a manifold 5 mounted at the front end 21 of the support 2. The manifold 5 is in fluid communication with the internal volume of each

cylindrical container

41, 42 through a pair of inlet ports 51, so as to receive and collect the glue to be dispensed pushed out of the respective cylindrical container by the respective push rod. Manifold 5 may also be connected to, for example, a static mixing tube 55 via outlet port 52 to mix and distribute the pooled sizing materials to a target location.

According to the present invention, the transmission device 7 is configured to transmit the driving force from the power source to the

push rods

31 and 32 at different transmission ratios, so that the

push rods

31 and 32 receive different driving forces or different powers from the power source, thereby allowing the

push rods

31 and 32 to translate at different speeds, for example, the translation speed of the push rod 31 can be faster than that of the push rod 32. In this way, when respectively loading in the tubular containers 41, 42 flexible packages of glue of the same diameter but different lengths (more specifically, for example, it is possible to load a longer flexible package in the tubular container 41 corresponding to the pusher 31, and a shorter flexible package in the tubular container 42 corresponding to the pusher 32, i.e. the greater the length of the tubular flexible package corresponding to the pusher with the greater translation speed), and then operating the glue dispensing apparatus 1, a greater amount of glue in the longer flexible package is pushed out by the pusher 31 with the greater translation speed, while a smaller amount of glue in the shorter flexible package is pushed out by the pusher 32 with the slower translation speed, so that it is possible to achieve, overall, that glue in both flexible packages starts to be pushed out by both pushers 31, 32 simultaneously (for which a person skilled in the art will readily understand that, due to the different lengths of the two flexible packages, the starting points of the strokes of both pushers 31, 32 are correspondingly set at different positions, the starting point of the stroke of the pusher 32 corresponding to the shorter flexible package is further towards the front of the glue dispensing apparatus 1 than the starting point of the stroke of the pusher 31 corresponding to the longer flexible package) and at the same time the pushing is ended, i.e. always dispensed synchronously. Because the amount of the sizing materials in the two flexible packages is different and the distribution time is the same, the volume flow rates of the sizing materials in the two flexible packages are different when the sizing materials are distributed, and finally, the different proportion distribution of the sizing materials with various components is realized by using the same sizing material distribution equipment.

Fig. 3 shows an exemplary configuration of at least a part of the transmission 7 which transmits different driving forces to the

push rods

31, 32, respectively, so that they translate at different speeds. In this configuration, each

push rod

31, 32 comprises a toothed section 35, 36 (the toothed section may occupy part or all of the length of the push rod), while the transmission 7 comprises two

spur gears

81, 82, for example housed in a gearbox that is part of the carrier 2, wherein for example the spur gear 81 meshes with the toothed section 35 of the push rod 31 and the spur gear 82 meshes with the toothed section 36 of the push rod 32. The cylindrical gears 81, 82 are configured to transmit driving forces to the

push rods

31, 32, respectively, at different gear ratios. To this end, in the embodiment shown in fig. 3, the spur gears 81, 82 are configured to have outer diameters different from each other but to be rotatable at the same rotational speed (i.e., angular speed), which means that the rotational linear or tangential speed of the spur gear 81 having a large outer diameter will be greater than the rotational linear or tangential speed of the spur gear 82 having a small outer diameter (because the rotational linear or tangential speed of the spur gear is equal to the product of its rotational speed or angular speed and radius), so that the translational speed of the push rod 31 engaged with the spur gear 81 via the toothed section 35 will be greater than the translational speed of the push rod 32 engaged with the spur gear 82 via the toothed section 36.

In order to make the spur gears 81, 82 rotate at the same rotational speed, the transmission 7 shown in fig. 3 also comprises two further spur gears 83, 84 having the same outer diameter and meshing with each other, wherein the spur gear 83 and the spur gear 81 are both mounted on the first rotational shaft and both rotate together with the first rotational shaft, whereby the spur gears 83, 81 can rotate at the same rotational speed, and the spur gear 84 and the spur gear 82 are both mounted on the second rotational shaft and both rotate together with the second rotational shaft, whereby the spur gears 84, 82 can also rotate at the same rotational speed. Since the cylindrical gears 83, 84 have the same outer diameter and mesh with each other, their rotational speeds are equal, and thus the rotational speeds of the cylindrical gears 81, 82 are also equal to each other. Either one of the cylindrical gears 83, 84 may receive the driving force from the power source directly or indirectly via the corresponding first or second rotating shaft. Those skilled in the art will readily appreciate that the transmission 7 may also include any other mechanism for changing the direction and/or magnitude of the transmission of the driving force, provided between the power source (e.g., the motor 6) and the

cylindrical gear

81 or 82, according to the actual need of the transmission of the driving force.

In the embodiment shown in fig. 3, cylindrical gears 83, 84 having the same outer diameter mesh with each other to achieve equal rotation speed. However, it is also conceivable that both

cylindrical gears

83, 84 mesh with another and the same gear, thereby also enabling their equal rotational speed rotation (in which case the cylindrical gears 83, 84 and the respective cylindrical gears 81, 82 would become co-rotating, suitable for the case where the

pushrods

31, 32 mesh with them on the same side of the cylindrical gears 81, 82, respectively, and translate in the same direction). Alternatively, it is also conceivable to replace the cylindrical gears 83, 84 with two worm wheels of the same outer diameter, which engage the same worm, or two wheels of the same outer diameter, which are drivingly connected to each other by a belt or chain.

In the embodiment shown in fig. 3, the cylindrical gears 81, 82 are configured to have outer diameters different from each other but to be rotatable at the same rotational speed. However, it is also conceivable that the spur gears 81, 82 are configured to be rotatable at different rotational speeds and have the same outer diameter, or that they have different rotational speeds and different outer diameters (but in this case the product of the rotational speed and the outer diameter of the spur gear 81 is different from the product of the rotational speed and the outer diameter of the spur gear 82), which also enables them to have different rotational linear speeds and thus different translational speeds of the

push rods

31, 32 with which they are in mesh. In this case, the cylindrical gears 83, 84 in the above-described embodiment may be configured as gears having different outer diameters that mesh with each other or with the same gear, respectively, or may be replaced with two pulleys having different outer diameters that are drivingly connected to each other by a belt or a chain, and the other structure is the same as in the above-described embodiment, thereby causing the cylindrical gears 81, 82 having the same outer diameter to have different rotational speeds.

Fig. 4 shows another exemplary configuration of at least one part of the transmission 7. In this configuration, each

push rod

31, 32 comprises a threaded section 37, 38 (which may occupy part or all of the length of the push rod), while the transmission means 7 comprise, for example, two

rotatable wheels

91, 92 with central threaded through holes, housed in a transmission box that is part of the carriage 2, the threaded section of each push rod being matingly engaged in the central threaded through hole of a corresponding one of the wheels. In the embodiment shown in fig. 4, the threaded

sections

37, 38 of the

push rods

31, 32 engage in respective central threaded through holes of the

wheels

91, 92. The

push rods

31, 32 and the corresponding turning wheels then constitute a lead screw-nut mechanism, so that the rotational movement of the turning

wheels

91, 92 can be converted into a translational movement of the corresponding push rods. Here, the non-threaded section of the push rod may be machined to have, for example, a D-shaped cross-section and supported in a corresponding mating hole of the transmission case to prevent the push rod from rotating with the runner. At the same time, the position of the runner should be fixed by suitable means against movement in the axial direction of the push rod. Since the translational speed of the push rod is equal to the rotational speed of the corresponding runner (e.g., revolutions per minute) multiplied by the lead of the threaded section of the push rod, different translational speeds of the

push rods

31, 32 may be achieved by setting the rotational speeds of the

runners

91, 92 to be different from each other and/or configuring the leads of the threaded

sections

37, 38 of the

push rods

31, 32 to be different from each other such that the product of the rotational speed of the runner 91 and the lead of the threaded section 37 of the corresponding push rod 31 is different from the product of the rotational speed of the runner 92 and the lead of the threaded section 38 of the corresponding push rod 32.

For example, the leads of the threaded

sections

37, 38 of the

push rods

31, 32 may be made different from each other while the rotational speeds of the

wheels

91, 92 are made the same. In this case, the turning

wheels

91, 92 may be configured as two gears having the same outer diameter that mesh with each other, or two gears having the same outer diameter that mesh with another same gear, or two turning wheels having the same outer diameter that are drivingly connected to each other by a belt or a chain, or two worm gears having the same outer diameter that engage with the same worm.

Alternatively, the leads of the threaded

sections

37, 38 of the

push rods

31, 32 may be made the same as each other while the rotational speeds of the

wheels

91, 92 are made different. In this case, the

wheels

91, 92 may be configured as two gears of different outer diameters that mesh with each other (as shown in the embodiment of fig. 4), or two gears of different outer diameters that mesh with another same gear, or two wheels of different outer diameters that are drivingly connected to each other by a belt or chain.

In both of the above-described structures, at least one of the

wheels

91, 92 may receive the driving force from the power source via any mechanism for changing the direction and/or magnitude of the driving force transmission according to the actual need of the driving force transmission.

In the above embodiments, the number of gears and wheels corresponding to each push rod in the cylindrical container, push rod and transmission device is two or two, so as to mix and dispense two different sizing materials. However, the present invention is not limited thereto, and it is also conceivable to employ three or more cylindrical containers and push rods in order to mix and dispense three or more different sizes of rubber.

As mentioned above, the glue dispensing apparatus according to the present invention is particularly suitable for dispensing glue of various components in different proportions from a plurality of glue flexible packages of the same diameter but different lengths. However, the invention is not limited thereto, but can also be applied to a plurality of flexible packages of glue stock of different diameters and different lengths, in which case it is also possible to achieve the same proportional distribution of the glue stock of different components if the flexible package of shorter length has a larger diameter than the flexible package of longer length. In other words, the sizing material dispensing device according to the present invention enables the dispensing of different proportions or the same proportions of sizing material to be dispensed of various components by suitably setting the length and diameter of each tubular container and/or of the corresponding flexible package, with a strong versatility of application.

The foregoing description is only exemplary of the principles and spirit of the invention. It will be appreciated by those skilled in the art that changes may be made in the embodiments described without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.

Claims

1. A sizing material dispensing device, characterized by comprising:

a holder adapted to receive a plurality of cylindrical containers; and

a plurality of push rods mounted on the bracket, each push rod configured to be translatable along a longitudinal direction thereof, and a transmission configured to receive a driving force from a power source and to transmit the driving force to the plurality of push rods at different transmission ratios, respectively, such that the plurality of push rods translate at different speeds.

2. The sizing dispensing device according to claim 1,

each push rod comprises a toothed section, the transmission device comprises a plurality of cylindrical gears capable of rotating, each cylindrical gear is meshed with the toothed section of a corresponding push rod, and the product of the rotating speed and the outer diameter of each cylindrical gear in the plurality of cylindrical gears is different from the product of the rotating speed and the outer diameter of any other cylindrical gear in the plurality of cylindrical gears.

3. The sizing dispensing device according to claim 2,

the plurality of cylindrical gears are configured to be rotatable at the same rotational speed and have different outer diameters.

4. The sizing dispensing device according to claim 3,

the transmission further includes a plurality of rotating wheels having the same outer diameter, each rotating wheel being coaxially arranged with a corresponding one of the cylindrical gears to be rotatable at the same rotational speed as the cylindrical gear, at least one of the plurality of rotating wheels being configured to receive a driving force from the power source and to drive the other rotating wheels of the plurality of rotating wheels to rotate at the same rotational speed.

5. The sizing dispensing device according to claim 4,

the plurality of wheels comprises at least one of: gears meshed with each other; a gear engaged with the same gear; the rotating wheels are in transmission connection with each other through a belt or a chain; a worm wheel engaged with the same worm; and combinations of the foregoing.

6. The sizing dispensing device according to claim 2,

the plurality of cylindrical gears are configured to be rotatable at different rotational speeds and have the same outer diameter.

7. The sizing dispensing device according to claim 2,

the plurality of cylindrical gears are configured to be rotatable at different rotational speeds and have different outer diameters.

8. The sizing dispensing device according to claim 6,

the transmission further includes a plurality of wheels having different outer diameters, each of the wheels being coaxially arranged with a corresponding one of the cylindrical gears to be rotatable at the same rotational speed as the cylindrical gear, at least one of the plurality of wheels being arranged to receive a driving force from the power source and to drive the other wheels of the plurality of wheels to rotate at different rotational speeds.

9. The sizing dispensing device according to claim 8,

the plurality of wheels comprises at least one of: gears meshed with each other; a gear engaged with the same gear; the rotating wheels are in transmission connection with each other through a belt or a chain; and combinations of the foregoing.

10. The sizing dispensing device according to claim 7,

11. The sizing dispensing device according to claim 10,

12. The sizing dispensing device according to claim 1,

each of the push rods includes a threaded section, the transmission includes a plurality of rotatable wheels with central threaded through holes, the threaded section of each push rod is cooperatively engaged in the central threaded through hole of a corresponding one of the wheels, and the product of the lead of the threaded section of each push rod and the rotational speed of the wheel corresponding to the push rod is different from the product of the lead of the threaded section of any other push rod and the rotational speed of the wheel corresponding to any other push rod.

13. The sizing dispensing apparatus according to claim 12,

the lead of the threaded sections of the plurality of push rods are different from each other,

the plurality of wheels having outer diameters identical to each other, at least one of the plurality of wheels being configured to receive a driving force from a power source and to drive the other wheels of the plurality of wheels to rotate at an identical rotation speed,

14. The sizing dispensing apparatus according to claim 12,

the leads of the threaded sections of the plurality of push rods are the same as each other,

the plurality of wheels having outer diameters different from each other, at least one of the plurality of wheels being configured to receive a driving force from a power source and to drive the other wheels of the plurality of wheels to rotate at different rotational speeds,

15. The glue dispensing apparatus of any one of claims 1 to 14,

further included is the plurality of tubular containers, each tubular container being configured to be movable from a first position in which the tubular container is received in the stand to a second position in which it is adapted to receive a tubular flexible package containing gum material to be dispensed therein.

16. The sizing dispensing apparatus according to claim 15,

the plurality of tubular containers are of the same diameter to respectively receive a plurality of tubular flexible packages of the same diameter and different lengths, and the plurality of pushers are configured to dispense a first size at a first volumetric flow rate from one of the plurality of tubular containers and a second size at a second volumetric flow rate different from the first volumetric flow rate from another of the plurality of tubular containers.

17. The glue dispensing apparatus of any one of claims 1 to 14,

a manifold is mounted to the front end of the support and is in fluid communication with the interior volume of each cylindrical vessel.

18. The glue dispensing apparatus of any one of claims 1 to 14,

a motor is coupled to the bracket and configured to provide a driving force to the transmission.