Double-layer belt conveying mechanism

Abstract

The utility model relates to the technical field of textile machinery, and discloses a double-layer belt conveying mechanism which comprises a discharging roller assembly, a first discharging roller and a second discharging roller which are arranged side by side, and a discharging channel is formed between the first discharging roller and the second discharging roller. The first tensioning roller assembly comprises a first lifting tensioning roller with the position adjustable in the height direction. The first feeding roller provides a first strip, the first strip passes through a first lifting tensioning roller and is led to the discharging channel, and the first lifting tensioning roller stretches and stores the first strip through descending in the height direction and releases the first strip through ascending; the second tensioning roller assembly comprises a second lifting tensioning roller with the position adjustable in the height direction. The second feeding roller provides a second strip, the second strip passes through the second lifting tensioning roller and is guided to the discharging channel, and the second lifting tensioning roller stretches and stores the second strip through descending in the height direction and releases the second strip through ascending. The conveying mode of the strip can be improved, and the phenomenon of snapping is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to textile machinery technical field especially is related to a double -layer belt conveying mechanism. BACKGROUND

[0002] Double -layer belt usually refers to the colored ribbon that is composed of two different color ribbons. Double -layer belt can make various shapes of decorations through knot processing.

[0003] With the development of automation, various knotting machine equipment appears, which can be used for the automation knotting of double -layer belt, greatly improves production efficiency. Among them, the double -layer belt conveying mechanism is the important mechanism in the knotting machine, is used for realizing the automation of double -layer belt and is fed.

[0004] However, the existing double -layer belt conveying mechanism still has many problems. For example, the strip conveying directly adopts the feeding roller to give, then through the clamping hand directly pulls the strip winding on the feeding roller to realize the feeding, lacks the buffer link, and the strip is easy to break. UTILITY MODEL CONTENTS

[0005] Based on this, it is necessary to provide a double -layer belt conveying mechanism for the existing problems, aiming at improving the conveying mode of the strip and reducing the breakage problem of the strip.

[0006] The embodiment of the application provides a double -layer belt conveying mechanism, which comprises:

[0007] The discharge roller assembly comprises a first discharge roller and a second discharge roller arranged side by side, and a discharge channel extending along the rotation direction of the first discharge roller is formed between the first discharge roller and the second discharge roller.

[0008] The first tensioning roller assembly comprises a first lifting tensioning roller which is adjustable in height direction.

[0009] The first feeding roller is used for providing a first strip, the first strip passes through the first lifting tensioning roller and is guided to the discharge channel, wherein the first lifting tensioning roller realizes the lengthening storage of the first strip by descending in the height direction, and realizes the release of the first strip by ascending.

[0010] The second tensioning roller assembly comprises a second lifting tensioning roller which is adjustable in height direction.

[0011] The second feeding roller is used for providing a second strip, the second strip passes through the second lifting tensioning roller and is guided to the discharge channel, wherein the second lifting tensioning roller realizes the lengthening storage of the second strip by descending in the height direction, and realizes the release of the second strip by ascending.

[0012] In some embodiments, the double -layer belt conveying mechanism further comprises:

[0013] A bearing plate;

[0014] A first lifting guide rail, extending along a height direction, arranged on the bearing plate;

[0015] A second lifting guide rail, extending along a height direction, arranged on the bearing plate;

[0016] The first lifting tension roller is slidably arranged on the first lifting guide rail, and the second lifting tension roller is slidably arranged on the first lifting guide rail.

[0017] In some embodiments, the double-layer belt conveying mechanism further comprises:

[0018] A first driving motor, in driving connection with the first feeding roller or a first active feeding roller set, to control the rotation of the first feeding roller, wherein the first active feeding roller set comprises a first active roller and a first driven roller, the first active roller is in driving connection with the first driving motor, and a first feeding gap capable of clamping the first belt is formed between the first active roller and the first driven roller;

[0019] A second driving motor, in driving connection with the second feeding roller or a second active feeding roller set, to control the rotation of the second feeding roller, wherein the second active feeding roller set comprises a second active roller and a second driven roller, the second active roller is in driving connection with the second driving motor, and a second feeding gap capable of clamping the second belt is formed between the second active roller and the second driven roller.

[0020] In some embodiments, the double-layer belt conveying mechanism further comprises:

[0021] A first sensor, arranged on the bearing plate and located on the lifting movement path of the first lifting tension roller, for sensing the lower limit position of the first lifting tension roller;

[0022] A second sensor, arranged on the bearing plate and located on the lifting movement path of the first lifting tension roller, for sensing the upper limit position of the first lifting tension roller;

[0023] A third sensor, arranged on the bearing plate and located on the lifting movement path of the second lifting tension roller, for sensing the lower limit position of the second lifting tension roller;

[0024] A fourth sensor, arranged on the bearing plate and located on the lifting movement path of the second lifting tension roller, for sensing the upper limit position of the second lifting tension roller.

[0025] In some embodiments, the double-layer belt conveying mechanism further comprises:

[0026] a first gripper assembly configured to selectively grip the first strip and the second strip passing through the gripping station;

[0027] wherein the first and second outfeed rollers are located upstream of the first gripper assembly, and the outfeed channel is located upstream of the gripping station and is configured to provide the first and second strips in a stacked arrangement to the gripping station.

[0028] In some embodiments, the dual-layer strip conveying mechanism further comprises a heating assembly comprising a first heating block and a second heating block configured to open and close, a hot-ironing channel being formed between the first and second heating blocks, the hot-ironing channel being in communication with the outfeed channel upstream and the gripping station downstream, and the hot-ironing channel being configured to hot-iron the first and second strips passing therethrough.

[0029] In some embodiments, the dual-layer strip conveying mechanism further comprises:

[0030] a second gripper;

[0031] a first translation assembly, the second gripper being disposed at an output end of the first translation assembly, the first translation assembly being configured to drive the second gripper to translate back and forth along a first direction;

[0032] a second translation assembly, the first translation assembly being disposed at an output end of the second translation assembly, the first translation assembly being configured to drive the first translation assembly to translate back and forth along a second direction, so as to cooperate with the first translation assembly to displace the second gripper to a pulling station to grip the first and second strips, and to complete the pulling of the first and second strips by moving to a pulling docking station, the pulling station being located downstream of the gripping station.

[0033] In some embodiments, the dual-layer strip conveying mechanism further comprises:

[0034] a controller electrically connected to the first sensor, the second sensor, the third sensor, the fourth sensor, the first driving motor, the second driving motor, the heating assembly, the first gripper assembly, the second gripper, the first translation assembly, and the second translation assembly, respectively.

[0035] In some embodiments, the dual-layer strip conveying mechanism further comprises a deviation rectifying and guiding assembly, the deviation rectifying and guiding assembly comprising a guiding channel, the guiding channel being located between the hot-ironing channel and the gripping station, and the guiding channel comprising a through slot or a hole for the first and second strips in a stacked arrangement to pass through.

[0036] In some embodiments, a first annular groove is formed in the sidewall of the first discharge roller, and a second annular groove is formed in the sidewall of the second discharge roller; the first annular groove is opposite to the second annular groove and forms the discharge channel.

[0037] The slot width of the first annular groove is configured to be not less than the width of the first strip passing through the first annular groove, and the slot width of the second annular groove is configured to be not less than the width of the second strip passing through the second annular groove.

[0038] The utility model discloses the beneficial effects of:

[0039] The first tension roller assembly of the double-layer belt conveying mechanism comprises a first lifting tension roller which is adjustable in position along the height direction; the second tension roller assembly comprises a second lifting tension roller which is adjustable in position along the height direction; the first strip passes through the first lifting tension roller and is guided to the discharge channel; the first lifting tension roller realizes the lengthening storage of the first strip by descending along the height direction and realizes the release of the first strip by ascending; the second strip passes through the second lifting tension roller and is guided to the discharge channel; the second lifting tension roller realizes the lengthening storage of the second strip by descending along the height direction and realizes the release of the second strip by ascending. The first lifting tension roller and the second tension roller assembly play a tensioning role on the first strip and the second strip on one hand, and on the other hand, they are adjustable in position along the height direction, thereby realizing the lengthening storage of the first strip and the second strip by descending along the height direction and realizing the release of the first strip and the second strip by ascending, so that the space of the change of the tensioning position is provided, and when the tensioning force is too large, the release of the first strip and the second strip is realized by ascending, so that the first strip and the second strip are not pulled off due to the too large tensioning force, and the conveying of the first strip and the second strip is improved. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only the embodiments of the utility model, and those skilled in the art can obtain the drawings of other embodiments according to these drawings without creating the creative labor.

[0041] Figure 1 A three-dimensional schematic view of a double-layer belt conveying mechanism is provided for the embodiment of the utility model Figure 1

[0042] Figure 2 A partial enlarged view of A in the embodiment of the utility model Figure 1

[0043] Figure 3 ​​For Figure 1 A local enlarged view at B;

[0044] Figure 4 A three-dimensional schematic view of a double-layer belt conveying mechanism provided for an embodiment of the present application Figure 2 ;

[0045] Figure 5 For Figure 4 A local enlarged view at C.

[0046] Reference signs:

[0047] Z, height direction;

[0048] 100, first belt;

[0049] 200, second belt;

[0050] 1, discharge roller assembly; 101, first discharge roller; 1011, first annular groove; 102, second discharge roller; 1021, second annular groove;

[0051] 2, first tensioning roller assembly; 201, first lifting tensioning roller;

[0052] 3, first feeding roller;

[0053] 4, second tensioning roller assembly; 401, second lifting tensioning roller;

[0054] 5, second feeding roller;

[0055] 6, bearing plate;

[0056] 7, first lifting guide rail;

[0057] 8, second lifting guide rail;

[0058] 9, first driving motor;

[0059] 10, first driving roller;

[0060] 11, first driven roller;

[0061] 12, second driving motor;

[0062] 13, first sensor;

[0063] 14, second sensor;

[0064] 15, third sensor;

[0065] 16, fourth sensor;

[0066] 17, first clamping hand assembly;

[0067] 18, heating assembly;

[0068] 19. second gripper;

[0069] 20. first translation assembly;

[0070] 21. second translation assembly;

[0071] 22. correction guide assembly. DETAILED DESCRIPTION

[0072] In order to make the above objectives, characteristics and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without using these specific details. In other instances, well-known methods have not been described in detail in order to avoid unnecessarily obscuring the present application. Therefore, the specific embodiments of the present application as set forth are not intended to limit the present application, but to elucidate the principles of the present application.

[0073] In the description of the present application, it should 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", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0074] In addition, the terms "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0075] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0076] In the present application, unless otherwise explicitly specified and limited, the feature "on" or "under" the second feature can be in direct contact with the second feature, or indirectly contact with the second feature through an intermediate medium. Moreover, the feature "on", "above" and "on the surface" of the second feature can be directly above or obliquely above the second feature, or only indicate that the feature is higher than the second feature in horizontal height. The feature "under", "below" and "under" the second feature can be directly below or obliquely below the second feature, or only indicate that the feature is lower than the second feature in horizontal height.

[0077] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only implementation.

[0078] Reference Figures 1-5 The embodiment of the present application provides a double-layer belt conveying mechanism, which comprises a discharge roller assembly 1, a first tensioning roller assembly 2, a first feeding roller 3, a second tensioning roller assembly 4 and a second feeding roller 5. The discharge roller assembly 1 comprises a first discharge roller 101 and a second discharge roller 102 arranged side by side, and a discharge channel extending along the rotation direction of the first discharge roller 101 is formed between the first discharge roller 101 and the second discharge roller 102; the first tensioning roller assembly 2 comprises a first lifting tensioning roller 201 which is adjustable in position along the height direction Z; the first feeding roller 3 is used for providing a first belt 100, the first belt 100 passes through the first lifting tensioning roller 201 and is guided to the discharge channel, the first lifting tensioning roller 201 realizes elongation storage of the first belt 100 by descending along the height direction Z and realizes release of the first belt 100 by ascending; the second tensioning roller assembly 4 comprises a second lifting tensioning roller 401 which is adjustable in position along the height direction Z; and the second feeding roller 5 is used for providing a second belt 200, the second belt 200 passes through the second lifting tensioning roller 401 and is guided to the discharge channel, the second lifting tensioning roller 401 realizes elongation storage of the second belt 200 by descending along the height direction Z and realizes release of the second belt 200 by ascending.

[0079] The first lifting tension roller 201 and the second tension roller assembly 4 play a tensioning role on the first belt 100 and the second belt 200 on one hand, and on the other hand, the position of the first lifting tension roller 201 and the second tension roller assembly 4 along the height direction Z is adjustable, and then the first belt 100 and the second belt 200 are elongated and stored by descending along the height direction Z, and the first belt 100 and the second belt 200 are released by ascending, so that the space of the change of the tensioning position is provided, and then the first belt 100 and the second belt 200 are released by ascending when the tensioning force is too large, so as to avoid the first belt 100 and the second belt 200 from being pulled off due to the excessive tensioning force, and the conveying of the first belt 100 and the second belt 200 is improved.

[0080] In some embodiments, referring to Figures 1-5 The double-layer belt conveying mechanism further comprises a bearing plate 6, a first lifting guide rail 7, and a second lifting guide rail 8. The first lifting guide rail 7 is arranged on the bearing plate 6 and extends along the height direction Z. The second lifting guide rail 8 is arranged on the bearing plate 6 and extends along the height direction Z. The first lifting tension roller 201 is slidably arranged on the first lifting guide rail 7, and the second lifting tension roller 401 is slidably arranged on the first lifting guide rail 7. The position of the first lifting tension roller 201 and the second lifting tension roller 401 along the height direction Z can be flexibly moved, and the force balance adjustment can be realized by using the self-gravity and the tensioning lifting force provided by the first belt 100 or the second belt 200, so that the position adjustment along the height direction Z is flexibly realized, and the storage or release control of the first belt 100 and the second belt 200 is realized.

[0081] More specifically, referring to Figures 1-5, the first tension roller assembly 2 further comprises a first tension roller (not labeled in the figure) and a second tension roller (not labeled in the figure) rotatably fixed upstream of the discharge roller assembly 1, the first strip 100 passes through the first tension roller, the first lifting tension roller 201 and the second tension roller in sequence, and is guided to the discharge channel, wherein the first lifting tension roller 201 realizes elongated storage of the first strip 100 by descending along the height direction Z and realizes release of the first strip 100 by ascending; the second tension roller assembly 4 further comprises a third tension roller (not labeled in the figure) and a fourth tension roller (not labeled in the figure) rotatably fixed upstream of the discharge roller assembly 1, the second strip 200 passes through the second lifting tension roller 401, the third tension roller and the fourth tension roller in sequence, and is guided to the discharge channel, wherein the second lifting tension roller 401 realizes elongated storage of the second strip 200 by descending along the height direction Z and realizes release of the second strip 200 by ascending; wherein the first tension roller and the second tension roller are rotatably fixed to the bearing plate 6, the first lifting tension roller 201 is slidingly arranged in the first lifting guide rail 7, the third tension roller and the fourth tension roller are rotatably fixed to the bearing plate 6, and the second lifting tension roller 401 is slidingly arranged in the first lifting guide rail 7. The first lifting tension roller 201 and the second lifting tension roller 401 both have a certain gravity, thereby maintaining appropriate tension on the corresponding first strip 100 and second strip 200, and realizing storage and release control through lifting.

[0082] Reference is made to Figures 1-5 In some embodiments, the double-layer strip conveying mechanism further comprises a first driving motor 9 and a second driving motor 12. The first driving motor 9 is drivingly connected with the first feeding roller 3 or a first active feeding roller group to control the discharge rotation of the first feeding roller 3, wherein the first active feeding roller group comprises a first active roller 10 and a first driven roller 11, the first active roller 10 is drivingly connected with the first driving motor 9, and a first feeding gap capable of clamping the first strip 100 is formed between the first active roller 10 and the first driven roller 11; the second driving motor 12 is drivingly connected with the second feeding roller 5 or a second active feeding roller group to control the discharge rotation of the second feeding roller 5, wherein the second active feeding roller group comprises a second active roller and a second driven roller, the second active roller is drivingly connected with the second driving motor 12, and a second feeding gap capable of clamping the second strip 200 is formed between the second active roller and the second driven roller, thereby actively controlling the feeding amount of the first feeding roller 3 and the second feeding roller 5, and stopping feeding when work is stopped.

[0083] Further reference is made to Figures 1-5In some embodiments, the double-layer belt conveying mechanism further comprises a first sensor 13, a second sensor 14, a third sensor 15, and a fourth sensor 16. The first sensor 13 is arranged on the carrier plate 6 and located on the lifting movement path of the first lifting tension roller 201, and is configured to sense the lower limit position of the first lifting tension roller 201. The second sensor 14 is arranged on the carrier plate 6 and located on the lifting movement path of the first lifting tension roller 201, and is configured to sense the upper limit position of the first lifting tension roller 201. The third sensor 15 is arranged on the carrier plate 6 and located on the lifting movement path of the second lifting tension roller 401, and is configured to sense the lower limit position of the second lifting tension roller 401. The fourth sensor 16 is arranged on the carrier plate 6 and located on the lifting movement path of the second lifting tension roller 401, and is configured to sense the upper limit position of the second lifting tension roller 401. In this way, the lifting positions of the first lifting tension roller 201 and the second lifting tension roller 401 can be detected, and the positions of the first lifting tension roller 201 and the second lifting tension roller 401 can be controlled.

[0084] Reference is made to Figures 1-5 In some embodiments, the double-layer belt conveying mechanism further comprises a first clamping hand assembly 17. The first clamping hand assembly 17 is configured to selectively clamp the first belt 100 and the second belt 200 passing through the clamping position. The first discharge roller 101 and the second discharge roller 102 are located upstream of the first clamping hand assembly 17, and a discharge channel is located upstream of the clamping position. The discharge channel is configured to provide the laminated first belt 100 and second belt 200 to the clamping position. In this way, the first belt 100 and the second belt 200 can be clamped by the first clamping hand assembly 17 to achieve position fixation.

[0085] In some embodiments, reference is made to Figures 1-5 The double-layer belt conveying mechanism further comprises a heating assembly 18. The heating assembly 18 comprises a first heating block and a second heating block that can be opened and closed. A hot pressing channel is formed between the first heating block and the second heating block. The upstream of the hot pressing channel is connected to the discharge channel, and the downstream of the hot pressing channel is connected to the clamping position. The hot pressing channel is configured to perform hot pressing treatment on the passing first belt 100 and second belt 200. In this way, the first belt 100 and the second belt 200 can be hot pressed and flattened.

[0086] Reference is made to Figures 1-5In some embodiments, the double-layer belt conveying mechanism further comprises a second gripper 19, a first translation assembly 20, and a second translation assembly 21; the second gripper 19 is arranged at the output end of the first translation assembly 20, and the first translation assembly 20 is configured to drive the second gripper 19 to translate back and forth along a first direction; the first translation assembly 20 is arranged at the output end of the second translation assembly 21, and the first translation assembly 20 is configured to drive the first translation assembly 20 to translate back and forth along a second direction, so as to displace the second gripper 19 to a pulling position to clamp the first belt 100 and the second belt 200, and complete the stretching and pulling of the material by moving to a pulling stop position, the pulling position being located downstream of the clamping position, thereby further completing the conveying of the double-layer belt. The double-layer belt refers to the first belt 100 and the second belt 200 arranged in layers.

[0087] Further, in some embodiments, referring to Figures 1-5 , the double-layer belt conveying mechanism further comprises a controller. The controller is electrically connected with the first sensor 13, the second sensor 14, the third sensor 15, the fourth sensor 16, the first driving motor 9, the second driving motor 12, the heating assembly 18, the first gripper assembly 17, the second gripper 19, the first translation assembly 20, and the second translation assembly 21, respectively. In actual work, the controller controls the movement of the first driving motor 9, the second driving motor 12, the heating assembly 18, and the first gripper assembly 17 through the position signals fed back by the first sensor 13, the second sensor 14, the third sensor 15, and the fourth sensor 16; when the first lifting tension roller 201 and the second lifting tension roller 401 are lowered to the limit position, the first driving motor 9 and the second driving motor 12 stop working and no longer feed the material, and the heating assembly 18, the first gripper assembly 17, the second gripper 19, the first translation assembly 20, and the second translation assembly 21 can continue to work, the material is pulled by the second gripper 19, and then the first lifting tension roller 201 and the second lifting tension roller 401 slowly rise, when rising to the limit position, the first gripper assembly 17 clamps the first belt 100 and the second belt 200, the first driving motor 9 and the second driving motor 12 start working to feed the material, and the first lifting tension roller 201 and the second lifting tension roller 401 move downward, until they are lowered to the limit position, and the cycle is repeated, thereby achieving the storage and release control and adjustment of the first belt 100 and the second belt 200.

[0088] In addition, there is a problem of double-layer belt deviation, which refers to the two layers of belts not being overlapped and aligned. Referring to Figures 1-5 In some embodiments, the double-layer belt conveying mechanism further comprises a deviation rectifying and guiding assembly 22, which is provided with a guiding channel, the guiding channel being located between the hot pressing channel and the clamping position, the guiding channel comprising a through slot or a hole for the first belt 100 and the second belt 200 arranged in layers to pass through, thereby guiding the second belt 200 and the second belt 200 and reducing the deviation.

[0089] Of course, in some embodiments, with reference to Figures 1-5 , the side wall of the first discharge roller 101 is provided with a first annular groove 1011, and the side wall of the second discharge roller 102 is provided with a second annular groove 1021; the first annular groove 1011 is opposite to the second annular groove 1021 and constitutes a discharge channel; wherein the groove width of the first annular groove 1011 is configured to be not less than the width of the first strip 100 passing through the first annular groove 1011, and the groove width of the second annular groove 1021 is configured to be not less than the width of the second strip 200 passing through the second annular groove 1021, which can also guide the first strip 100 and the second strip 200 and reduce the deviation.

[0090] Finally, it should be noted that the technical features of the above embodiments can be combined arbitrarily, in order to make the description simple, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combination of the technical features does not exist contradictory, should be considered as the scope of the description.

[0091] The above-described embodiments only express some of the embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of variations and improvements can be made, which are within the scope of the present application. Therefore, the scope of protection of the present application should be subject to the appended claims.

Claims

1. A dual layer tape transport mechanism characterized by, The application relates to a material feeding device, comprising: a discharge roller assembly (1) comprising a first discharge roller (101) and a second discharge roller (102) arranged side by side, a discharge channel being formed between the first discharge roller (101) and the second discharge roller (102) and extending along the rotation direction of the first discharge roller (101); a first tensioning roller assembly (2) comprising a first lifting tensioning roller (201) adjustable in the height direction (Z); a first feeding roller (3) for providing a first strip (100), the first strip (100) passing through the first lifting tensioning roller (201) and leading to the discharge channel, wherein the first lifting tensioning roller (201) realizes elongated storage of the first strip (100) by lowering in the height direction (Z) and realizes release of the first strip (100) by lifting; a second tensioning roller assembly (4) comprising a second lifting tensioning roller (401) adjustable in the height direction (Z); a second feeding roller (5) for providing a second strip (200), the second strip (200) passing through the second lifting tensioning roller (401) and leading to the discharge channel, wherein the second lifting tensioning roller (401) realizes elongated storage of the second strip (200) by lowering in the height direction (Z) and realizes release of the second strip (200) by lifting.

2. The dual-layer tape transport mechanism of claim 1, wherein, Further comprising: a bearing plate (6); a first lifting guide rail (7) arranged on the bearing plate (6) and extending in the height direction (Z); a second lifting guide rail (8) arranged on the bearing plate (6) and extending in the height direction (Z); wherein the first lifting tensioning roller (201) is slidably arranged on the first lifting guide rail (7) and the second lifting tensioning roller (401) is slidably arranged on the first lifting guide rail (7).

3. The dual layer tape transport mechanism of claim 2, wherein, Further comprising: a first driving motor (9) drivingly connected with the first feeding roller (3) or a first active feeding roller set to control the discharge rotation of the first feeding roller (3), wherein the first active feeding roller set comprises a first active roller (10) and a first driven roller (11), the first active roller (10) is drivingly connected with the first driving motor (9), and the first active roller (10) and the first driven roller (11) form a first feeding gap capable of clamping the first strip (100); a second driving motor (12) drivingly connected with the second feeding roller (5) or a second active feeding roller set to control the discharge rotation of the second feeding roller (5), wherein the second active feeding roller set comprises a second active roller and a second driven roller, the second active roller is drivingly connected with the second driving motor (12), and the second active roller and the second driven roller form a second feeding gap capable of clamping the second strip (200).

4. The dual-layer tape transport mechanism of claim 3, wherein, Further comprising: a first sensor (13) arranged on the bearing plate (6) and located on the lifting movement path of the first lifting tensioning roller (201) to sense the lower limit position of the first lifting tensioning roller (201). A second sensor (14) is arranged on the bearing plate (6) and located on the lifting movement path of the first lifting tension roller (201) to sense the upper limit position of the first lifting tension roller (201); A third sensor (15) is arranged on the bearing plate (6) and located on the lifting movement path of the second lifting tension roller (401) to sense the lower limit position of the second lifting tension roller (401); A fourth sensor (16) is arranged on the bearing plate (6) and located on the lifting movement path of the second lifting tension roller (401) to sense the upper limit position of the second lifting tension roller (401).

5. The dual layer tape transport mechanism of claim 4, wherein, Further comprising: A first clamping hand assembly (17) is arranged to selectively clamp the first strip (100) and the second strip (200) passing through the clamping position; Wherein, the first discharge roller (101) and the second discharge roller (102) are located upstream of the first clamping hand assembly (17), and the discharge channel is located upstream of the clamping position, and the discharge channel is used to provide the laminated first strip (100) and the second strip (200) to the clamping position.

6. The dual-layer tape transport mechanism of claim 5, wherein, Further comprising a heating assembly (18), the heating assembly (18) comprises a first heating block and a second heating block which can be opened and closed, a hot pressing channel is formed between the first heating block and the second heating block, the upstream of the hot pressing channel is communicated with the discharge channel, and the downstream of the hot pressing channel is communicated with the clamping position, and the hot pressing channel is configured to perform hot pressing treatment on the passing first strip (100) and the second strip (200).

7. The dual-layer tape transport mechanism of claim 5, wherein, Further comprising: A second clamping hand (19); A first translation assembly (20), the second clamping hand (19) is arranged on the output end of the first translation assembly (20), and the first translation assembly (20) is configured to drive the second clamping hand (19) to reciprocally translate along a first direction; A second translation assembly (21), the first translation assembly (20) is arranged on the output end of the second translation assembly (21), and the first translation assembly (20) is configured to drive the first translation assembly (20) to reciprocally translate along a second direction, so as to cooperate with the first translation assembly (20) to displace the second clamping hand (19) to a pulling position to clamp the first strip (100) and the second strip (200), and complete the stretching and taking out by moving to a pulling parking position, and the pulling position is located downstream of the clamping position.

8. The dual-layer tape transport mechanism of claim 7, wherein, Further comprising: A controller is electrically connected with the first sensor (13), the second sensor (14), the third sensor (15), the fourth sensor (16), the first drive motor (9), the second drive motor (12), the heating assembly (18), the first clamping hand assembly (17), the second clamping hand (19), the first translation assembly (20) and the second translation assembly (21) respectively.

9. The dual-layer tape transport mechanism of claim 6, wherein, Further comprising a deviation rectifying guide assembly (22) having a guide channel between the hot pressing channel and the clamping position, the guide channel comprising a through slot or a hole for the first strip (100) and the second strip (200) arranged in a stack to pass through.

10. The dual-layer tape transport mechanism of any of claims 1-9, wherein, A side wall of the first discharge roller (101) is provided with a first annular groove (1011), and a side wall of the second discharge roller (102) is provided with a second annular groove (1021); the first annular groove (1011) is opposite to the second annular groove (1021) and constitutes the discharge channel. The groove width of the first annular groove (1011) is configured to be not less than the strip width of the first strip (100) passing through the first annular groove (1011), and the groove width of the second annular groove (1021) is configured to be not less than the strip width of the second strip (200) passing through the second annular groove (1021).

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