CN210417131U - Film roll feeding device - Google Patents

Abstract

The utility model provides a film roll feeding device, which comprises a plurality of first transmission belts, a plurality of second transmission belts and a third transmission belt, wherein the first transmission belts, the second transmission belts and the third transmission belts are arranged in a straight line; a feeding port and a feeding mechanism are arranged on the left side or the right side of each first conveying belt, the feeding mechanism is used for feeding the film roll output by the film roll preparation device into the corresponding feeding port, and each first conveying belt is also provided with a detection mechanism used for detecting the entering condition of the film roll; at least one second conveying belt is arranged between the adjacent first conveying belts; the third conveyor belt is arranged at the rearmost, and is provided with a guide baffle mechanism for axially moving the film roll. The film roll feeding device can effectively and uniformly feed the film rolls output by the preparation devices into a packaging machine.

Description

Film roll feeding device

Technical Field

The utility model relates to a transmission band technical field, in particular to material feeding unit is rolled up to film.

Background

In the film roll production system, after the film roll is prepared, a conveying belt is required to be used for conveying the film roll to a packaging machine for packaging. In the film roll preparing apparatus, the prepared film roll is usually connected in series to a rotating shaft, and the film roll is pushed out axially by a table pusher during discharging, while a general packaging machine correspondingly requires the film roll to move axially into the film roll for packaging. In a film roll production plant, a plurality of film roll preparation devices and a plurality of packaging machines are often arranged, the preparation devices and the packaging machines are arranged one by one, and the film roll output from the preparation devices directly enters the corresponding packaging machines.

Therefore, there is a need for a film roll feeding apparatus that can efficiently feed film rolls output from preparation apparatuses into a packaging machine uniformly so as to reduce the number of packaging machines, thereby reducing the occupied space, improving the utilization rate of the packaging machine, and saving power.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a film roll feeding device, which can effectively and uniformly feed the film rolls output by each preparation device into a packaging machine.

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

a film roll feeding device comprises a plurality of first conveying belts, a plurality of second conveying belts and a third conveying belt, wherein the first conveying belts, the second conveying belts and the third conveying belts are linearly arranged; a feeding port and a feeding mechanism are arranged on the left side or the right side of each first conveying belt, the feeding mechanism is used for feeding the film roll output by the film roll preparation device into the corresponding feeding port, and each first conveying belt is also provided with a detection mechanism used for detecting the entering condition of the film roll; at least one second conveying belt is arranged between the adjacent first conveying belts; the third conveyor belt is arranged at the rearmost, and is provided with a guide baffle mechanism for axially moving the film roll.

In the film roll feeding device, the feeding mechanism comprises a lifting material receiving machine and a feeding table; the lifting material receiving machine comprises a lifting plate, an air cylinder for driving the lifting plate to lift, a material receiving seat, a wedge-shaped plate, a cross rod and a reset assembly, wherein the material receiving seat is hinged with the lifting plate and used for bearing a film roll; the cross rod can extrude the wedge-shaped plate to enable the material receiving seat to swing downwards when the lifting plate descends to the proper position, and the reset assembly can reset the material receiving seat when the lifting plate ascends; the feeding table is obliquely arranged, the lower side of the feeding table is over against a feeding port of the first conveying belt, and the higher side of the feeding table is over against a receiving seat which is descended in place.

In the film roll feeding device, the reset assembly comprises a plurality of weight rods fixedly connected with the material receiving seat, and the tail end of each weight rod is provided with a heavy hammer; the weight rod is arranged on one side back to the feeding table and is arranged above the hinge between the material receiving seat and the lifting plate.

In the film roll feeding device, the weight rod can be abutted against the top of the lifting plate.

In the film roll feeding device, the lifting material receiving machine also comprises a base and two guide posts vertically arranged on the base; the lifting plate is connected with the guide columns in a guiding mode.

In the film roll feeding device, the detection mechanism comprises an installation frame fixed on one side of a frame of the first conveying belt, which is back to the feeding port, a swinging plate with the top hinged with the installation frame and opposite to the feeding port, and a travel switch arranged on one side of the swinging plate, which is back to the feeding port; the travel switch is a direct-acting travel switch, and the end part of a push rod of the travel switch is propped against the swinging plate.

In the film roll feeding device, the travel switch is arranged on a connecting seat which is fixedly connected with the mounting frame; the connecting seat is also provided with a limit bolt.

In the film roll feeding device, the guide baffle mechanism comprises two guide baffles which are respectively arranged at the left side and the right side of the third conveying belt and can be bent, two mounting beams which are respectively fixed at the left side and the right side of a rack of the third conveying belt, and a plurality of adjusting components connected between the guide baffles and the corresponding mounting beams; each adjusting component comprises an upright post and a sliding rod, one end of the sliding rod is connected with the guide baffle, and the other end of the sliding rod vertically penetrates through the upper part of the upright post and is adjustable in length.

In the film roll feeding device, the adjusting assembly further comprises a stand column seat connected with the corresponding mounting beam, and the stand column is arranged on the stand column seat and can rotate in the circumferential direction.

In the film roll feeding device, the front and rear positions of the upright post seat are adjustable; the slide bar is connected with the guide baffle in a sliding mode, and the end portion of the slide bar can move along the length direction of the guide baffle.

Has the advantages that:

the utility model provides a film roll feeding device, during operation, each pan feeding mechanism feeds the film roll output by each preparation device into the corresponding first transmission belt, the film rolls are conveyed to the same packaging machine through the transmission belts arranged linearly in sequence, and after entering the third transmission belt, the film roll can move axially under the guiding action of the guide baffle mechanism, so as to ensure that the film roll can smoothly enter the packaging machine; the film roll entering condition at each first conveying belt can be detected through the detection mechanism, so that the control system of the film roll production system can control each conveying belt to work conveniently, and the film rolls are prevented from colliding. It can be seen that the film roll feeding device can effectively feed the film rolls output by the preparation devices into a packaging machine in a unified manner.

Drawings

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

Fig. 2 is a perspective view of a material descending and receiving machine in the film roll feeding device provided by the present invention.

Fig. 3 is a side view of a material descending and receiving machine in the film roll feeding device provided by the present invention.

Fig. 4 is a side view of a detecting mechanism in the film roll feeding device provided by the present invention.

Fig. 5 is a top view of a detecting mechanism in the film roll feeding device provided by the present invention.

Fig. 6 is a schematic structural view of a guide baffle mechanism in the film roll feeding device provided by the present invention.

Fig. 7 is a perspective view of an adjusting assembly of a guide baffle mechanism in the film roll feeding device provided by the present invention.

Fig. 8 is a side view of an adjusting component of the guide baffle mechanism in the film roll 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 transmission direction of each transmission belt is defined as back, front and back are opposite; the left and right are directions perpendicular to the front and rear horizontal directions.

Referring to fig. 1 to 8, the utility model provides a film roll feeding device, which includes a plurality of first conveying belts a, a plurality of second conveying belts B and a third conveying belt C, wherein the first conveying belts, the second conveying belts and the third conveying belts are arranged linearly; a feeding port A1 and a feeding mechanism D are arranged on the left side or the right side of each first conveying belt A, the feeding mechanism D is used for feeding the film roll 90 output by the film roll preparation device into the corresponding feeding port A1, and each first conveying belt A is also provided with a detection mechanism E for detecting the entering condition of the film roll; at least one second conveying belt B is arranged between the adjacent first conveying belts A; a third conveyor belt C is arranged at the rear, which is provided with a guide flap mechanism F for moving the film roll 90 in the axial direction.

In the film roll feeding device, each feeding mechanism D is arranged at an outlet of each film roll preparation device, and the rear end of the third conveying belt C is opposite to an inlet of the packaging machine. As shown in fig. 1, in operation, each feeding mechanism D feeds the film rolls 90 output by each preparation device into the corresponding first conveying belt a, the film rolls are conveyed to the same packaging machine through each linearly arranged conveying belt in sequence, and after entering the third conveying belt C, the film rolls axially move under the guiding action of the guide baffle mechanism F to ensure that the film rolls can smoothly enter the packaging machine;

the detection mechanism E can detect the entering condition of the film roll 90 at each first conveying belt A, so that the control system of the film roll production system can control each conveying belt to work conveniently, and the collision of the film rolls is avoided. It can be seen that the film roll feeding device can effectively feed the film rolls output by the preparation devices into a packaging machine in a unified manner.

Here, the second conveyor belt B is provided at both sides with a barrier B1 to prevent the film roll from falling.

Specifically, as shown in fig. 1-3, the feeding mechanism D comprises a lifting receiving machine Da and a feeding table Db; the lifting material receiving machine Da comprises a lifting plate D1, an air cylinder D2 for driving the lifting plate D1 to lift, a material receiving seat D3 which is hinged with the lifting plate D1 and used for bearing the film roll 90, a wedge-shaped plate D4 arranged at the bottom of the material receiving seat, a cross rod D5 arranged below the wedge-shaped plate, and a resetting component D6; the cross bar D5 can press the wedge-shaped plate D4 to enable the material receiving seat D3 to swing downwards when the lifting plate D1 descends to the proper position (the descending to the proper position means that the cross bar 5 descends to be in contact with the wedge-shaped plate 4), and the resetting component D6 can reset the material receiving seat D3 when the lifting plate D1 ascends; the feeding table Db is obliquely arranged, the lower side of the feeding table Db is over against a feeding port A1 of the first conveying belt, and the higher side of the feeding table Db is over against a receiving seat D3 which descends in place.

This pan feeding mechanism D during operation, the film book 90 of along axial output bears on connecing material seat D3 earlier, then lifter plate D1 descends and drives and connect material seat D3 to move down, wedge plate D4's hypotenuse can be pressed on horizontal pole D5, the reaction force (the component of horizontal direction) of horizontal pole can make and connect material seat D3 swing down (promptly in figure 3, connect the material seat along the anticlockwise swing), thereby pour film book 90 into on the pay-off platform Db, the film book can roll along the pay-off platform under the action of gravity, get into first transmission band A at last. The feeding mechanism D is simple in structure and can ensure that the film roll output from the preparation device can be reliably fed into the first conveying belt A.

In order to reduce the upward component of the reaction force of the crossbar D5, the inclined angle a of the inclined edge of the wedge-shaped plate D4 for being squeezed against the crossbar D5 (as shown in fig. 3, the inclined angle a is the angle between the inclined edge and the horizontal plane) may be set to be greater than 45 °; the angle of inclination a is preferably 60 °. In addition, the wedge-shaped plate D4 can be replaced by a wedge-shaped frame with similar shape, and the oblique edge can also be an arc-shaped edge.

In this embodiment, as shown in fig. 2 and 3, the resetting component D6 includes a plurality of weight rods D6.1 fixedly connected to the material receiving seat D3, and a weight D6.2 is disposed at the tail end of each weight rod; the weight lever is arranged on one side back to the feeding table Db and above the hinge 91 between the material receiving seat and the lifting plate. The weight D6.2 can generate a restoring moment to the material receiving seat under the action of gravity, and the restoring moment makes the material receiving seat swing upward (i.e. the material receiving seat swings clockwise in fig. 3).

Further, the weight lever D6.1 can be abutted against the top of the lifting plate D1, see fig. 3. When the material receiving seat D3 is reset, the weight rod D6.1 is abutted against the top of the lifting plate D1, so that the material receiving seat D3 can be limited, the material receiving seat D3 is prevented from continuously swinging upwards, and the angle of the material receiving seat D3 is kept unchanged.

In order to realize buffering and avoid the weight rod D6.1 and the lifting plate D1 from being damaged due to impact, an elastic cushion layer, such as a polyurethane foam layer, a rubber cushion layer, a sponge cushion layer, etc., may be disposed on the top of the lifting plate D1.

Preferably, a V-shaped groove is formed in the top of the material receiving seat D3 along the length direction, and the film roll 90 is supported in the V-shaped groove, so that the film roll can be prevented from rolling off before the material receiving seat D3 swings, and the feeding reliability is improved.

In some embodiments, the lifting and receiving machine Da further includes a base D7, and two guide posts D8 vertically disposed on the base D7; the lifting plate D1 is connected with the guide posts D8 in a guiding way. Specifically, as shown in fig. 2, the lifting plate D1 is fixedly connected with a guide sliding sleeve, and the guide post D8 is slidably inserted into the corresponding guide sliding sleeve. The guide columns can guide the movement of the lifting plate D1 on one hand and can provide supporting force for the lifting plate D1 to prevent the lifting plate D1 from turning over on the side.

Furthermore, a support D9 for supporting the guide post D8 is disposed on the base D7 to prevent the guide post D8 from toppling or bending. In this embodiment, the support frame D9 is in an inverted L shape, and at least one cross beam is connected between the two support frames D9.

In a preferred embodiment, the cross bar D5 is a round bar, two ends of the round bar are respectively rotatably inserted into the upper ends of two mounting posts D10, and the lower end of the mounting post D10 is fixedly connected with the base D7. Because the cross bar D5 can rotate, the friction between the wedge plate D4 can be reduced, the abrasion speed is reduced, and the swing of the material receiving seat D3 can be smoother.

Specifically, as shown in fig. 4 and 5, the detecting mechanism E includes an installation frame E1 fixed on one side of the frame of the first conveyor belt a, which is away from the material inlet a1, a swing plate E2 whose top is hinged to the installation frame E1 and which is opposite to the material inlet a1, and a travel switch E3 arranged on one side of the swing plate, which is away from the material inlet a 1; the travel switch is a direct-acting travel switch, and the end part of a push rod E3.1 of the travel switch is propped against a swinging plate E2.

In the detection mechanism E, a travel switch E3 is electrically connected to a control system of the film roll production system. When the film roll feeding device works, when a film roll 90 enters the first conveying belt A, the film roll can impact the swing plate E2 due to inertia, so that the swing plate swings to trigger the travel switch E3, a control signal is formed to enable the control system to coordinate the work among the conveying belts to avoid the collision of the film roll, and after the film roll is sent out by the first conveying belt A, the swing plate can reset under the action of the self gravity and a push rod of the travel switch (a reset spring is arranged on the push rod of the direct-acting travel switch).

Further, the travel switch E3 is disposed on a connecting seat E4, and the connecting seat E4 is fixedly connected to the mounting bracket E1; the connecting seat is also provided with a limit bolt E5. The limit bolt E5 can limit the swing amplitude of the swing plate E2, on one hand, the travel switch E3 can be prevented from being damaged, and on the other hand, the film roll 90 can be prevented from rolling out of the first conveying belt A. In addition, spacing bolt E5 and connecting seat E4 threaded connection, spacing bolt extension length is adjustable, can adjust according to actual need.

Preferably, the head of the restraining bolt E5 (i.e., the projection for applying force to rotate the bolt) is oriented to the right, as seen in fig. 5. Due to the fact that the head of the limiting bolt E5 is large in area, pressure on the swing plate E2 during collision can be reduced, and damage to the swing plate is avoided.

Preferably, as shown in fig. 5, the two travel switches E3 are symmetrically arranged in front and at the back, and the two connecting seats E4 and the two limit bolts E5 are correspondingly arranged. On the one hand, larger reset force can be provided, on the other hand, only one travel switch outputs a trigger signal to indicate that a film roll enters, and only when two travel switches are in fault, detection is mistaken, so that the reliability of a detection result is improved.

To reduce the impact, a damping layer E2.1 can be provided on the side of the rocker plate E2 facing the inlet a 1. The buffer layer can be, but is not limited to, a polyurethane foam layer, a silica gel layer, a rubber layer, a sponge layer, etc.

Specifically, as shown in fig. 6 to 8, the guide baffle mechanism F includes two bendable guide baffles F1 respectively disposed on the left and right sides of the third conveyor C, two mounting beams F2 respectively fixed on the left and right sides of the frame of the third conveyor C, and a plurality of adjusting assemblies F3 connected between the guide baffles and the corresponding mounting beams; each adjusting component F3 comprises a stand column F3.1 and a sliding rod F3.2, one end of the sliding rod F3.2 is connected with the guide baffle plate F1, and the other end of the sliding rod F3.2 vertically penetrates through the upper part of the stand column F3.1 and is adjustable in penetrating length.

The guide baffle mechanism F can lead the distance between the two guide baffles F1 to be gradually reduced from front to back by adjusting the penetrating length of each sliding rod F3.2 at the upper part of the upright post, and finally the distance is matched with the diameter of the film roll; the film roll 90 is finally discharged in the axial direction under the guidance of two guide flaps F1.

Although fig. 1 and 6 show the two guide fences F1 adjusted to be symmetrical, the two guide fences F1 are not limited thereto. Preferably, one of the guide baffles F1 can be adjusted to be in a straight line shape which is flush with one side of the third conveying belt C, and the other guide baffle F1 can be adjusted to be in a curve shape which gradually draws close from front to back; in this way, even if the film roll 90 moves into the third conveyor C in a direction perpendicular to the axial direction (which is the most extreme case), the film roll will rotate because one end is blocked and the other end is unblocked, and will eventually pass smoothly between the two guide flaps F1 without jamming.

In some embodiments, see fig. 7 and 8, the adjustment assembly F3 further comprises a locking screw F3.3 disposed at the top of the upright F3.1 for locking the sliding bar F3.2. When the penetrating length of the sliding rod F3.2 needs to be adjusted, the locking screw F3.3 can be unscrewed and then screwed again after the adjustment is finished.

Further, the adjusting assembly F3 further includes a column base F3.4 connected to the corresponding mounting beam F2, and the column F3.1 is disposed on the column base F3.4 and can rotate in the circumferential direction. The slide bar F3.2 can swing correspondingly along with the curvature change condition of the guide baffle plate F1 by the rotation of the upright post F3.1, so that the curvature of the guide baffle plate F1 can be continuously changed, the guide baffle plate F1 can be ensured to extend along a continuous curve, and the film roll is prevented from being blocked.

Specifically, as shown in fig. 8, the connecting seat F3.4 is composed of a first connecting plate F3.4a, a second connecting plate F3.4b, a third connecting plate F3.4c, a fourth connecting plate F3.4d and a fifth connecting plate F3.4e which are connected in sequence; the first connecting plate F3.4a is horizontally arranged and connected with the top of the mounting beam F2, the fifth connecting plate F3.4e is vertically arranged and connected with the side surface of the mounting beam F2, and the third connecting plate F3.4c is vertically arranged; the upright post F3.1 is cylindrical and penetrates through the second connecting plate F3.4b and the fourth connecting plate F3.4d.

In a preferred embodiment, as shown in fig. 7 and 8, the adjusting assembly F3 further includes a collar F3.5 sleeved on the pillar F3.1, the collar is disposed between the second connecting plate F3.4b and the fourth connecting plate F3.4d, and a stud f3.5a is disposed on an outer circumferential surface of the collar, and the stud is disposed on the third connecting plate F3.4c and locked by a nut. When the nut is tightened, the collar F3.5 is moved to press the upright F3.1 and thereby lock the upright F3.1, and when the nut is loosened, the height and the angle of rotation of the upright F3.1 can be adjusted.

In this embodiment, the front and rear positions of the upright post base F3.4 are adjustable; the slide bar F3.2 is connected with the guide baffle plate F1 in a sliding way, and the end part of the slide bar F3.2 can move along the length direction of the guide baffle plate F1. Thus, the relative position of the adjusting assembly F3 and the guide baffle F1 can be adjusted, and the position of the adjusting assembly can be adjusted according to the actual situation to enable the guide baffle F1 to obtain the required extension curve.

Specifically, the top and the side of the mounting beam F2 are both provided with an inverted T-shaped clamping groove F2.1 along the length direction; first connecting plate F3.4a and fifth connecting plate F3.4e are connected fixedly with the type of falling T draw-in groove F2.1 that corresponds through bolt F3.6 respectively, and the head joint of bolt F3.6 is in type of falling T draw-in groove F2.1. Through the matching of the bolt F3.6 and the inverted T-shaped clamping groove F2.1, the position of the upright post seat F3.4 is continuously adjustable and can be moved to any position of the mounting beam F2.

Furthermore, an inverted T-shaped slot f1.1a (as shown in fig. 7) is formed in the outer side surface of the guide baffle F1 along the longitudinal direction, a screw f3.2a is axially connected to the end of the slide bar F3.2, and the head of the screw f3.2a is engaged with the inverted T-shaped slot f1.1a (as shown in fig. 8). The position of the sliding rod F3.2 is continuously adjustable through the matching of the screw F3.2a and the inverted T-shaped clamping groove F1.1a, and the sliding rod can move to any position of the guide baffle plate F1. And an adjustment assembly F3 may be added as desired.

In some embodiments, see fig. 8, the deflector F1 comprises a flexible panel F1.2, and a reinforcing panel F1.1 disposed on the outer side of the plastic panel; an inverted T-shaped clamping groove F1.1a is formed in the reinforcing plate F1.1. The flexible plate body F1.2 may be, but is not limited to, a plastic plate body, a glass fiber plate body, a nylon plate, etc.; the reinforcing plate may be, but is not limited to, an aluminum alloy sheet, a steel sheet, a copper sheet, or the like. The guide flaps F1 are sufficiently flexible to allow effective bending, yet have a degree of rigidity to reliably retain the film roll.

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 (10)

1. A film roll feeding device is characterized by comprising a plurality of first conveying belts, a plurality of second conveying belts and a third conveying belt, wherein the first conveying belts, the second conveying belts and the third conveying belts are linearly arranged; a feeding port and a feeding mechanism are arranged on the left side or the right side of each first conveying belt, the feeding mechanism is used for feeding the film roll output by the film roll preparation device into the corresponding feeding port, and each first conveying belt is also provided with a detection mechanism used for detecting the entering condition of the film roll; at least one second conveying belt is arranged between the adjacent first conveying belts; the third conveyor belt is arranged at the rearmost, and is provided with a guide baffle mechanism for axially moving the film roll.

2. The film roll feeding device according to claim 1, wherein the feeding mechanism comprises a lifting receiving machine and a feeding table; the lifting material receiving machine comprises a lifting plate, an air cylinder for driving the lifting plate to lift, a material receiving seat, a wedge-shaped plate, a cross rod and a reset assembly, wherein the material receiving seat is hinged with the lifting plate and used for bearing a film roll; the cross rod can extrude the wedge-shaped plate to enable the material receiving seat to swing downwards when the lifting plate descends to the proper position, and the reset assembly can reset the material receiving seat when the lifting plate ascends; the feeding table is obliquely arranged, the lower side of the feeding table is over against a feeding port of the first conveying belt, and the higher side of the feeding table is over against a receiving seat which is descended in place.

3. The film roll feeding device according to claim 2, wherein the reset assembly comprises a plurality of weight rods fixedly connected with the material receiving base, and a weight is arranged at the tail end of each weight rod; the weight rod is arranged on one side back to the feeding table and is arranged above the hinge between the material receiving seat and the lifting plate.

4. A film roll feeding apparatus according to claim 3, wherein the weight bar is capable of abutting against the top of the lifting plate.

5. The film roll feeding device according to claim 2, wherein the lifting material receiving machine further comprises a base and two guide posts vertically arranged on the base; the lifting plate is connected with the guide columns in a guiding mode.

6. The film roll feeding device according to claim 1, wherein the detection mechanism comprises a mounting frame fixed on one side of the frame of the first conveying belt, which is opposite to the feeding port, a swinging plate with the top hinged with the mounting frame and opposite to the feeding port, and a travel switch arranged on one side of the swinging plate, which is opposite to the feeding port; the travel switch is a direct-acting travel switch, and the end part of a push rod of the travel switch is propped against the swinging plate.

7. The film roll feeding device according to claim 6, wherein the travel switch is provided on a connecting seat which is fixedly connected with the mounting frame; the connecting seat is also provided with a limit bolt.

8. The film roll feeding device according to claim 1, wherein the guide baffle mechanism comprises two guide baffles which are respectively arranged at the left side and the right side of the third conveyor belt and can be bent, two mounting beams which are respectively fixed at the left side and the right side of the rack of the third conveyor belt, and a plurality of adjusting components which are connected between the guide baffles and the corresponding mounting beams; each adjusting component comprises an upright post and a sliding rod, one end of the sliding rod is connected with the guide baffle, and the other end of the sliding rod vertically penetrates through the upper part of the upright post and is adjustable in length.

9. The film roll feeding apparatus of claim 8, wherein the adjusting assembly further comprises a post base connected to the corresponding mounting beam, the post being disposed on the post base and being capable of rotating in a circumferential direction.

10. The film roll feeding apparatus of claim 9, wherein a forward and rearward position of said post holder is adjustable; the slide bar is connected with the guide baffle in a sliding mode, and the end portion of the slide bar can move along the length direction of the guide baffle.

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