CN210418268U

CN210418268U - Paper tube feeding device

Info

Publication number: CN210418268U
Application number: CN201921025203.0U
Authority: CN
Inventors: 吴星辉; 房军成; 向益; 黄顺忠; 刘华昌
Original assignee: Ruitong Packaging Industrial Heyuan Co ltd
Current assignee: Ruitong Packaging Industrial Heyuan Co ltd
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-04-28
Anticipated expiration: 2029-07-03

Abstract

The utility model provides a paper tube feeding device, which comprises a first conveying belt and a second conveying belt which are mutually vertical to each other and arranged in an L shape, a material pushing mechanism used for pushing a paper tube from the first conveying belt to the second conveying belt, and a detection mechanism used for detecting the in-place moving condition of the paper tube in the first conveying belt; the material pushing mechanism and the second conveying belt are respectively arranged on the left side and the right side of the rear part of the first conveying belt; a first baffle mechanism is arranged at the front part of the first conveying belt, and a second baffle mechanism is arranged on the second conveying belt; first baffle mechanism and second baffle mechanism all include two pin that extend along the direction of transportation, and the distance between these two pin is adjustable. The paper tube feeding device can ensure that the paper tube is output along the direction vertical to the axial direction.

Description

Paper tube feeding device

Technical Field

The utility model relates to a transportation takes technical field, in particular to fiber container material feeding unit.

Background

When the film roll is produced, a paper tube (paper core tube) is prepared, and then the prepared paper tube is transported to the next station for winding the film; generally, the prepared paper tube is arranged on a rotating shaft in series, the paper tube is pushed out along the axial direction by a pushing-out mechanism and then conveyed to the next station, and the paper tube is required to move in the direction perpendicular to the axial direction when entering the next station (which is determined by the structure of the film winding device). Therefore, a paper tube feeding device for transferring paper tubes is needed, which can ensure that the paper tubes are output along the direction perpendicular to the axial direction.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing disadvantages of the prior art, an object of the present invention is to provide a paper tube feeding device capable of ensuring the output of a paper tube along the direction perpendicular to the axial direction.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a paper tube feeding device comprises a first conveyor belt, a second conveyor belt, a material pushing mechanism and a detection mechanism, wherein the first conveyor belt and the second conveyor belt are perpendicular to each other and arranged in an L shape; the material pushing mechanism and the second conveying belt are respectively arranged on the left side and the right side of the rear part of the first conveying belt; a first baffle mechanism is arranged at the front part of the first conveying belt, and a second baffle mechanism is arranged on the second conveying belt; first baffle mechanism and second baffle mechanism all include two pin that extend along the direction of transportation, and the distance between these two pin is adjustable.

In the paper tube feeding device, the detection mechanism comprises a first mounting frame arranged at the rear end of a first conveying belt, an L-shaped swinging plate is arranged on the front side of the top of the first mounting frame, the swinging plate consists of a transverse plate and a vertical plate, the rear side of the transverse plate is pivoted with the first mounting frame, the front side of the transverse plate is connected with the upper side of the vertical plate, and the height difference between the lower side of the vertical plate and the upper surface of the first conveying belt is smaller than the diameter of a paper tube; and the top of the first mounting frame is also provided with a proximity sensor which is opposite to the vertical plate and a reset component which is used for resetting the swinging plate.

In the paper tube feeding device, the first mounting frame comprises a mounting frame main body and an L-shaped adjusting plate; the regulating plate comprises horizontal plate portion and riser portion, sets up the waist hole that extends along the fore-and-aft direction on the horizontal plate portion and fixes at mounting bracket main part top by the screw that passes the waist hole, proximity sensor fixes on the riser portion.

In the paper tube feeding device, the reset assembly comprises a weight rod, a heavy hammer and a support piece, wherein the front end of the weight rod is fixedly connected with the transverse plate, and the rear end of the weight rod is inclined upwards; the support member is provided on the lateral plate portion of the adjustment plate.

In the paper tube feeding device, the detection mechanism further comprises a lifting mechanism for driving the first mounting frame to lift.

In the paper tube feeding device, the material pushing mechanism comprises a second mounting frame arranged at the rear part of the first conveying belt, a second air cylinder arranged on the second mounting frame and perpendicular to the conveying direction of the first conveying belt, and a push plate fixedly connected with a piston rod of the second air cylinder; the push pedal includes vertical plate portion and the baffle portion that mutually perpendicular becomes the L shape and sets up, and vertical plate portion is parallel with the direction of transportation in first transportation area, and baffle portion connects the front end at vertical plate portion and extends in the first transportation area dorsad.

In the paper tube feeding device, the longitudinal plate part comprises a first longitudinal plate fixedly connected with a piston rod of the second cylinder and a second longitudinal plate which is arranged on the front side of the first longitudinal plate in a front-back telescopic manner; the baffle part is connected to the front end of the second vertical plate.

In the paper tube feeding device, flanges are arranged on the upper side and the lower side of the baffle part.

In the paper tube feeding device, the first baffle mechanism and the second baffle mechanism respectively comprise a plurality of connecting blocks fixed on the corresponding conveying belt rack, each stop lever is correspondingly provided with at least two connecting blocks, each connecting block is inserted with a sliding rod in a sliding manner and is provided with a locking screw used for locking the sliding rod, and the inward end of the sliding rod is fixedly connected with the corresponding stop lever.

In the paper tube feeding device, the height of the second conveying belt is lower than that of the first conveying belt, a transition supporting plate is arranged on one side, facing the second conveying belt, of the rear part of the first conveying belt, and the vertical downward projection part of the transition supporting plate falls on the second conveying belt.

Has the advantages that:

the utility model provides a pair of fiber container material feeding unit, in operation, adjust the distance between two pin of first baffle mechanism according to the actual diameter of fiber container, and adjust the distance between two pin of second baffle mechanism according to the actual length of fiber container, thereby make the fiber container earlier in first transportation area along axial displacement to just triggering detection mechanism to the position in second transportation area, then push second transportation area along the axial direction of perpendicular to by pushing equipment to it, the fiber container can be removed along the axial direction of perpendicular to all the time under the limiting displacement of second baffle mechanism, see off at last. Therefore, the paper tube feeding device can ensure that the paper tube is output along the direction perpendicular to the axial direction.

Drawings

Fig. 1 is a schematic structural view of a paper tube feeding device provided by the present invention.

Fig. 2 is a schematic structural view of a first conveying belt in the paper tube feeding device provided by the present invention.

Fig. 3 is a schematic structural view of a second conveyor belt in the paper tube feeding device provided by the present invention.

Fig. 4 is a perspective view of a detection mechanism in the paper tube feeding device provided by the present invention.

Fig. 5 is a side view of a detecting mechanism in the paper tube feeding device provided by the present invention.

Fig. 6 is a perspective view of a pushing mechanism in the paper tube feeding device provided by the present invention.

Fig. 7 is a top view of a pushing mechanism in the paper tube feeding device provided by the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The following disclosure provides embodiments or examples for implementing different configurations of the present invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

For convenience of description, the first conveyor belt is conveyed in a direction of back and front opposite to back, and the second conveyor belt is conveyed in a direction of right and left opposite to right.

Referring to fig. 1-7, the present invention provides a paper tube feeding device, which includes a first conveyor belt a and a second conveyor belt B perpendicular to each other and arranged in an L shape, a pushing mechanism C for pushing a paper tube 90 from the first conveyor belt to the second conveyor belt, and a detecting mechanism D for detecting the paper tube 9 moving in place in the first conveyor belt a; the material pushing mechanism C and the second conveying belt B are respectively arranged on the left side and the right side of the rear part of the first conveying belt A; the front part of the first conveying belt A is provided with a first baffle mechanism Ea, and the second conveying belt B is provided with a second baffle mechanism Eb; the first flap mechanism Ea and the second flap mechanism Eb each comprise two stop bars E1 extending in the transport direction (referring to the transport direction of the corresponding transport belt), the distance between which stop bars E1 is adjustable.

During operation, the distance between the two stop rods E1 of the first baffle mechanism Ea is adjusted according to the actual diameter of the paper tube 90, and the distance between the two stop rods E1 of the second baffle mechanism Eb is adjusted according to the actual length of the paper tube, so that the paper tube firstly moves in the first conveying belt A along the axial direction (the movement direction of the paper tube 90 output from the paper tube preparation device) to the position opposite to the second conveying belt B and triggers the detection mechanism D, then the paper tube is pushed into the second conveying belt B along the direction perpendicular to the axial direction by the pushing mechanism C, and the paper tube can always move in the direction perpendicular to the axial direction under the limiting action of the second baffle mechanism Eb and is finally sent out. Therefore, the paper tube feeding device can ensure that the paper tube is output along the direction perpendicular to the axial direction.

Referring to fig. 1, 4 and 5, the detection mechanism D includes a first mounting frame D1 disposed at the rear end of the first conveyor belt a, an L-shaped swing plate D2 is disposed at the front side of the top of the first mounting frame, the swing plate is composed of a transverse plate D2.1 and a vertical plate D2.2, the rear side of the transverse plate D2.1 is pivotally connected to the first mounting frame D1, the front side of the transverse plate D2.2 is connected to the upper side of the vertical plate D2.2, and the height difference between the lower side of the vertical plate D2.2 and the upper surface of the first conveyor belt a is smaller than the diameter of the paper tube 90 (to ensure that the paper tube 90 can strike the vertical plate D2.2); the top of the first mounting rack D1 is also provided with a proximity sensor D3 opposite to the vertical plate D2.2 and a resetting component D4 for resetting the swinging plate.

When the paper tube 90 moves to the rear end along with the first conveying belt A, the paper tube 90 can impact the vertical plate D2.2 to enable the swinging plate D2 to swing, so that the vertical plate can trigger the proximity sensor D3 to form a control signal to enable the pushing mechanism C to start to push materials, at the moment, due to the blocking of the vertical plate D2.2, the paper tube 90 cannot move backwards continuously, therefore, the first conveying belt A is not required to be stopped temporarily in the material pushing process, and the first conveying belt A can be prevented from being switched frequently.

Preferably, the length of the swinging plate D2 is not less than the width of the first conveyor belt a, so as to ensure that the paper tube 90 can be blocked during the whole material pushing process.

Further, the first mounting bracket D1 includes a mounting bracket main body D1.1 and an L-shaped adjusting plate D1.2; the adjusting plate D1.2 is composed of a horizontal plate portion D1.2a and a vertical plate portion D1.2b, a waist hole extending in the front-rear direction is formed in the horizontal plate portion D1.2a and fixed to the top of the mounting frame body D1.1 by a screw penetrating through the waist hole (as shown in fig. 4), and the proximity sensor D3 is fixed to the vertical plate portion D1.2b (as shown in fig. 5). The front and back positions of the swinging plate D2 can be adjusted by adjusting the front and back positions of the adjusting plate D1.2 to meet the requirements of the triggering positions of paper tubes 90 with different lengths, and the proximity sensor D3 can move along with the adjusting plate D1.2, so that the relative positions of the proximity sensor D3 and the vertical plate D2.2 are not changed along with the position change of the adjusting plate D1.2.

The return component D4 may be a compression spring connected between the riser portion D1.2b and the riser D2.2. As shown in fig. 4 and 5, the resetting assembly D4 includes a weight rod D4.1 with a front end fixedly connected to the cross plate D2.1 and a rear end inclined upward, a weight D4.2 fixedly connected to the rear end of the weight rod, and a support member D4.3 supporting the middle of the weight rod; the support D4.3 is arranged on the lateral plate portion D1.2a of the adjusting plate; the gravity of the weight D4.2 will make the swinging plate D2 swing upward, and the position of the support D4.3 to the weight rod D4.1 will make the swinging plate D2 keep the initial angle unchanged in the free state.

Preferably, the front and rear positions of the support member D4.3 are adjustable. The position of the supporting point of the support D4.3 on the weight rod D4.1 is changed by adjusting the front and back positions of the support D4.3, so that the initial angle of the swing plate D2 can be adjusted, the initial distance between the proximity sensor D3 and the vertical plate D2.2 can be adjusted, and under the condition that the sensitivity of the proximity sensor D3 is unchanged, the sensitivity of the whole detection structure can be optimized by adjusting the initial angle of the swing plate D2 (because the impact force of paper tubes with the same size on the swing plate D2 is fixed, the initial angles of the swing plates D2 are different, the displacement which can be generated by the same impact force is also different, and the larger the displacement is, the higher the sensitivity is).

In this embodiment, the support member D4.3 is an L-shaped plate, and the bottom thereof is initially provided with a waist hole extending in the front-rear direction, and is fixedly connected with the adjusting plate D1.2 by a screw passing through the waist hole.

Further, referring to fig. 5, a limit screw D5 may be provided on the riser portion D1.2b of the adjustment plate, and the front end of the limit screw D5 is located in front of the front end of the proximity sensor D3 to prevent the swing plate D2 from hitting the proximity sensor D3.

In some embodiments, the detecting mechanism D further includes a lifting mechanism for driving the first mounting rack D1 to lift. In the actual use process, when the horizontal plate D2.1 of the swinging plate D2 is horizontal or the included angle with the horizontal plane is relatively small, if the height of the upper end of the paper tube 90 is higher than the height of the front end of the swinging plate D2, the swinging plate D2 cannot swing or the swinging angle is very small during impact, so that the sensitivity is low; here, the height of the mounting bracket D1 is adjusted by the lifting mechanism, so that the paper tube 90 can be guaranteed to always collide with the lower part of the vertical plate D2.2, and this problem can be avoided.

Specifically, the lifting mechanism comprises a fixed plate D6 fixedly connected with the frame of the first conveyor belt A, a lifting plate D7 arranged above the fixed plate, and a first air cylinder D8 which is upwards arranged at the bottom of the fixed plate D6 and used for driving the lifting plate D7 to move up and down; the mounting frame main body D1.1 is fixedly connected with a lifting plate D7.

Furthermore, the bottom of the lifting plate D7 is fixedly connected with two guide posts D9, the fixed plate D6 is provided with corresponding guide sliding sleeves D10, and the guide posts D9 are slidably arranged in the corresponding guide sliding sleeves D10.

In order to protect the paper tube 90 from being damaged, an elastic cushion D2.2a can be arranged on the front side surface of the vertical plate D2.2.

Referring to fig. 1, 6 and 7, the pushing mechanism C includes a second mounting bracket C1 disposed at the rear of the first conveyor belt a, a second air cylinder C2 disposed on the second mounting bracket and perpendicular to the conveying direction of the first conveyor belt, and a pushing plate C3 fixedly connected to a piston rod of the second air cylinder; the push plate C3 includes vertical plate portion C3.1 and baffle portion C3.2 that mutually perpendicular becomes the L setting, and vertical plate portion C3.1 is parallel with the direction of transportation of first conveyer belt A, and baffle portion C3.2 is connected at the front end of vertical plate portion and is extended dorsad first conveyer belt A.

When pushing the material, the second cylinder C2 pushes the push plate C3 (in the direction of the arrow in fig. 7) to extend, the paper tube 90 to be pushed out is pushed by the vertical plate portion C3.1, and the subsequent paper tube 90 is blocked by the blocking portion C3.2 and cannot move continuously (as shown in fig. 7), so that the subsequent paper tube 90 cannot reach the back of the vertical plate portion C3.1, and the subsequent transportation operation is not affected by the jamming when the push plate C3 retracts.

In some embodiments, the vertical plate portion C3.1 includes a first vertical plate C3.1a fixedly connected to the piston rod of the second cylinder, and a second vertical plate C3.1b telescopically disposed in front of the first vertical plate; the baffle portion C3.2 is connected to the front end of the second vertical plate 3.1 b. Because the lengths of the paper tubes 90 of different models are different, if the length of the longitudinal plate portion C3.1 is not long enough to contact with only a part of the paper tube 90, the paper tube 90 may turn over (not refer to rolling), and it cannot be guaranteed that the paper tube 90 is pushed into the second conveyor belt B in the direction perpendicular to the axial direction; here, the length of the vertical plate portion C3.1 is adjustable, and the adjustment can be made in accordance with the actual length of the paper tube 90, thereby avoiding this problem.

Specifically, as shown in fig. 6, a guide groove c3.1c extending in the front-rear direction is formed in the first vertical plate c3.1a, a corresponding guide rod c3.1d is provided at the rear end of the second vertical plate c3.1b, the guide rod is slidably inserted into the guide groove, and a locking screw c3.1e for locking the guide rod is further provided on the first vertical plate c 3.1a.

Preferably, the number of the guide grooves c3.1c is two, and the number of the guide rods c3.1d is two correspondingly, so that stress can be dispersed, and bending deformation of the guide rods c3.1d can be avoided.

In order to avoid the guide rod c3.1d from falling off, the guide groove c3.1c is a dovetail groove, and the guide rod is matched with the guide groove (namely, the guide rod is matched with the cross section shape of the guide groove).

Preferably, the upper and lower sides of the baffle part C3.2 are provided with flanges C3.2a to improve the bending strength of the baffle part and avoid deformation due to impact of the paper tube.

Further, the pushing mechanism C further includes a dust-proof box C4 fixedly connected to the second mounting bracket C1, and the second cylinder C2 is disposed in the dust-proof box C4.

In a preferred embodiment, referring to fig. 2, the pushing mechanism C further includes two guiding posts C5, one end of each guiding post is connected to the vertical plate portion C3.1 (specifically, connected to the first vertical plate 3.1 a), and the other end is slidably inserted into the dust-proof box C4. Through the guiding effect of the guide post C5, the accurate moving direction of the push plate C3 can be ensured, and the piston rod of the second air cylinder C2 is prevented from being subjected to shearing force.

Referring to fig. 2 and 3, each of the first baffle mechanism Ea and the second baffle mechanism Eb further includes a plurality of connecting blocks E2 fixed on the corresponding conveyor belt frame, each of the baffle bars E1 is correspondingly provided with at least two connecting blocks, each connecting block is slidably inserted with a sliding bar E3 and is provided with a locking screw E4 for locking the sliding bar, and one inward end of the sliding bar (i.e., one end pointing to the corresponding conveyor belt) is fixedly connected with the corresponding baffle bar E1. The position of the stop lever E1 can be adjusted after the locking screw E4 is unscrewed, and the first locking screw E4 is screwed again after the adjustment is finished, so that the adjustment is convenient and quick.

Preferably, the front end of the bar E1 is provided with a guide portion E1.1 bent outward (i.e. bent toward the side facing away from the corresponding conveyor belt). An inlet with a large front part and a small rear part is formed between the guide parts E1.1 of the two stop levers E1, so that the paper tube 90 can be ensured to smoothly enter between the two stop levers E1.

In some embodiments, the stop bar E1 of the first barrier Ea is tubular, and the rear end of the stop bar is slidably inserted with a telescopic bar E5 and provided with a locking screw E6 for locking the telescopic bar, as shown in fig. 2. Referring to fig. 1, for paper tubes 90 with different lengths, the joint of the first conveyor belt a and the second conveyor belt B needs to have an outlet with a corresponding length so that the paper tube 90 can be pushed out, and the length of the outlet can be adjusted by adjusting the extending length of the telescopic rod E5, so that the paper tube 90 with different lengths can be transported, and the applicability is strong.

In the embodiment, as shown in fig. 1 and 2, the height of the second conveyor belt B is lower than that of the first conveyor belt a, and a transition pallet a1 is arranged on the side of the rear part of the first conveyor belt a facing the second conveyor belt, and the vertically downward projection part of the transition pallet a1 falls on the second conveyor belt B. Since the end of the second belt B is wound around the roller shaft, there is inevitably a relatively large gap between the first belt a and the second belt B at the junction, and the transition pallet a1 is hidden above the gap, so as to avoid the gap from obstructing the smooth entry of the paper tube 90 into the second belt B.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-mentioned preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, but the present invention is substantially the same as the present invention.

Claims

1. A paper tube feeding device is characterized by comprising a first conveying belt, a second conveying belt, a material pushing mechanism and a detection mechanism, wherein the first conveying belt and the second conveying belt are perpendicular to each other and arranged in an L shape; the material pushing mechanism and the second conveying belt are respectively arranged on the left side and the right side of the rear part of the first conveying belt; a first baffle mechanism is arranged at the front part of the first conveying belt, and a second baffle mechanism is arranged on the second conveying belt; first baffle mechanism and second baffle mechanism all include two pin that extend along the direction of transportation, and the distance between these two pin is adjustable.

2. The paper tube feeding device as claimed in claim 1, wherein the detection mechanism comprises a first mounting frame arranged at the rear end of the first conveying belt, an L-shaped swinging plate is arranged on the front side of the top of the first mounting frame, the swinging plate is composed of a transverse plate and a vertical plate, the rear side of the transverse plate is pivoted with the first mounting frame, the front side of the transverse plate is connected with the upper side of the vertical plate, and the height difference between the lower side of the vertical plate and the upper surface of the first conveying belt is smaller than the diameter of the paper tube; and the top of the first mounting frame is also provided with a proximity sensor which is opposite to the vertical plate and a reset component which is used for resetting the swinging plate.

3. The web feed apparatus of claim 2, wherein the first mounting bracket includes a mounting bracket body and an L-shaped adjustment plate; the regulating plate comprises horizontal plate portion and riser portion, sets up the waist hole that extends along the fore-and-aft direction on the horizontal plate portion and fixes at mounting bracket main part top by the screw that passes the waist hole, proximity sensor fixes on the riser portion.

4. The paper tube feeding device as claimed in claim 3, wherein the reset assembly comprises a weight lever with a front end fixedly connected with the cross plate and a rear end inclined upwards, a heavy hammer fixedly connected with the rear end of the weight lever, and a support member for supporting the middle part of the weight lever; the support member is provided on the lateral plate portion of the adjustment plate.

5. The web feeding apparatus of claim 3, wherein the detecting mechanism further comprises a lifting mechanism for driving the first mounting bracket to lift.

6. The paper tube feeding device as claimed in claim 1, wherein the pushing mechanism comprises a second mounting frame arranged at the rear part of the first conveying belt, a second air cylinder arranged on the second mounting frame and perpendicular to the conveying direction of the first conveying belt, and a push plate fixedly connected with a piston rod of the second air cylinder; the push pedal includes vertical plate portion and the baffle portion that mutually perpendicular becomes the L shape and sets up, and vertical plate portion is parallel with the direction of transportation in first transportation area, and baffle portion connects the front end at vertical plate portion and extends in the first transportation area dorsad.

7. The paper tube feeding device as claimed in claim 6, wherein the longitudinal plate portion comprises a first longitudinal plate fixedly connected with the piston rod of the second cylinder, and a second longitudinal plate telescopically arranged in front of the first longitudinal plate; the baffle part is connected to the front end of the second vertical plate.

8. The paper tube feeding device as claimed in claim 6, wherein flanges are provided on upper and lower sides of the baffle portion.

9. The paper tube feeding device according to claim 1, wherein each of the first and second baffle mechanisms further comprises a plurality of connecting blocks fixed to the corresponding conveyor belt frame, each of the baffle bars is provided with at least two corresponding connecting blocks, each connecting block is slidably inserted with a slide bar and is provided with a locking screw for locking the slide bar, and the inward end of the slide bar is fixedly connected with the corresponding baffle bar.

10. The paper tube feeding device as claimed in claim 1, wherein the second conveyor belt is lower than the first conveyor belt, and a transition pallet is provided on a side of the rear portion of the first conveyor belt facing the second conveyor belt, and a vertically downward projected portion of the transition pallet falls on the second conveyor belt.