Tensioning mechanism for film laminating machine

Abstract

The invention relates to the technical field of film laminating machines, and discloses a tensioning mechanism for a film laminating machine, the tensioning mechanism comprises a main body assembly, the main body assembly comprises a film laminating machine body, a supporting piece, a reel and a film roll, the supporting piece is arranged on one side of the film laminating machine body, the reel is located in the supporting piece, and the film roll is fixed on the surface of the reel; the adjusting assembly is arranged in the film laminating machine body and comprises a fixed seat fixed in the film laminating machine body, and a supporting shaft is rotationally connected into the fixed seat. The device has the beneficial effects that by arranging the adjusting assembly, constant tension can be maintained, and it is ensured that the tension of a film is stable; meanwhile, the resistance to the reel can be automatically adjusted along with the change of the diameter of the film roll, and it is ensured that the film coating tension is constant within a certain range under the condition that the film roll diameters are different; when the film roll is replaced, the tensioning mechanism does not need to be manually and repeatedly adjusted, and the working efficiency is improved; and the film laminating tension can be adjusted, so that the requirements of different film laminating processes on the tension are met.

Description

Technical Field

[0001] The invention relates to the technical field of laminating machines, in particular to a tensioning mechanism for laminating machines. Background Art

[0002] In the modern packaging, printing and material processing industries, laminating machines are an important equipment widely used in surface protection and decorative treatment of various products. The laminating process mainly involves laminating a layer of film (such as polyethylene, polypropylene and other materials) on the surface of paper, cardboard, plastic or other substrates to achieve waterproof, moisture-proof, wear-resistant, and enhance visual effects. In this process, effective tension control of the film roll is one of the key links to ensure the quality of lamination.

[0003] When the existing laminating machine is in use, as the film roll is continuously consumed, the diameter of the film roll gradually decreases. This change directly affects the tension control of the film material during the laminating process. Specifically, when the diameter of the film roll is large, in order to maintain a constant laminating tension, a relatively large resistance needs to be applied to the reel; and when the diameter of the film roll decreases, if the same pulling force is maintained, it will cause excessive tension in the film material, which may cause problems such as stretching deformation, breakage or uneven lamination of the film material, seriously affecting the final quality and appearance of the product. Summary of the invention

[0004] In view of the above problems existing in the existing tensioning mechanism for laminating machines, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is that the existing laminating machine is not convenient for flexibly changing the pulling force on the reel according to the use of the film roll when in use, resulting in large fluctuations in the tension of the film material.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a tensioning mechanism for a laminating machine, comprising a main assembly, including a laminating machine body, a support, a reel and a film roll, wherein the support is arranged on one side of the laminating machine body, the reel is located in the support, and the film roll is fixed to the surface of the reel; An adjusting component is arranged in the laminating machine body, including a fixed seat fixed in the laminating machine body, a support shaft is rotatably connected in the fixed seat, a support wheel is fixed on the surface of the support shaft, a support frame is fixed on one side of the fixed seat, a support rod is hinged in the support frame, a pressure plate is fixed on the end of the support rod, a friction pad is fixed on the bottom of the pressure plate, and an inclined surface is arranged on one side of the fixed seat.

[0007] As a preferred solution of the tensioning mechanism for the laminating machine described in the present invention, the support member includes a placement rack arranged on the surface of the reel, a blocking block is fixed to one side of the placement rack, and a pulley is arranged at the bottom of the placement rack.

[0008] As a preferred solution of the tensioning mechanism for the laminating machine described in the present invention, the adjusting component also includes an extrusion member, which is arranged on one side of the pressure plate, including a push plate fixed to one side of the pressure plate, an extrusion sleeve is hinged on one side of the push plate, a movable sleeve slides inside the extrusion sleeve, and a first spring is arranged inside the movable sleeve.

[0009] As a preferred solution of the tensioning mechanism for the laminating machine described in the present invention, the extrusion member also includes a fixed shaft fixed in the laminating machine body, a swing arm is rotatably connected to the surface of the fixed shaft, and the end of the swing arm is hinged to the end of the movable sleeve.

[0010] As a preferred solution of the tensioning mechanism for the laminating machine described in the present invention, wherein: the adjusting component also includes an adjusting part, which is arranged in the movable sleeve, including an adjusting gear rotatably connected to the movable sleeve, a rotating gear is arranged on one side of the adjusting gear, an adjusting rod is fixed on one side of the rotating gear, a threaded shaft is slidably connected to the surface of the adjusting rod, the threaded shaft is rotatably connected to the movable sleeve through a thread, an extrusion disk is fixed to the end of the threaded shaft, and the extrusion disk is located at one end of the first spring.

[0011] As a preferred solution of the tensioning mechanism for the laminating machine described in the present invention, wherein: the adjusting component also includes a detection part, which is arranged in the laminating machine body, including a fixed column fixed to one side of the laminating machine body, a rotating rod rotatably connected in the fixed column, a detection rod fixedly connected to the surface of the rotating rod, a detection wheel rotatably connected to one end of the detection rod, and a counterweight block is fixed to the other end of the detection rod.

[0012] As a preferred solution of the tensioning mechanism for the laminating machine described in the present invention, wherein: the detection member further includes an adjustment disk, the adjustment disk is fixed to the surface of the rotating rod, and the adjustment disk is located on one side of the rocker rod.

[0013] As a preferred solution of the tensioning mechanism for the laminating machine described in the present invention, wherein: the adjustment component also includes a reset part, which is arranged in the laminating machine body, including a support column fixed in the laminating machine body, a reset rod is rotatably connected to the surface of the support column, a lever is fixed to one side of the reset rod, and a driving rod is fixed to the surface of the rotating rod.

[0014] As a preferred solution of the tensioning mechanism for the laminating machine described in the present invention, a sliding rod is fixed to the end of the reset rod, a driving handle is fixed to the top of the sliding rod, a sliding sleeve slides on the surface of the sliding rod, a sliding plate is fixed in the sliding sleeve, and a second spring is arranged in the sliding plate.

[0015] As a preferred solution of the tensioning mechanism for the laminating machine described in the present invention, the reset member also includes an insertion rod sliding in the slide, a third spring is fixed to the end of the insertion rod, a baffle is fixed to the top of the laminating machine body, a plug hole is opened on the baffle, an extrusion rod slides in the plug hole, a fourth spring is sleeved on the surface of the extrusion rod, and a reset button is fixed to the end of the extrusion rod.

[0016] The beneficial effects of the present invention are as follows: by setting an adjustment component, the pulling force can be maintained constant, ensuring that the tension of the coating is stable; at the same time, the resistance to the reel can be automatically adjusted as the diameter of the film roll changes, ensuring that the coating tension is constant within a certain range under different film roll diameters; there is no need to manually repeat the adjustment of the tensioning mechanism when replacing the film roll, thereby improving work efficiency; the coating tension can be adjusted to meet the tension requirements of different coating processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 The figure is a structural diagram of a tensioning mechanism for a laminating machine.

[0019] Figure 2 For the tensioning mechanism of the laminating machine Figure 1 A magnified view of the local structure at point A.

[0020] Figure 3 It is a cross-sectional structural diagram of a tensioning mechanism for a laminating machine.

[0021] Figure 4 For the tensioning mechanism of the laminating machine Figure 3 Enlarged view of the local structure at point B in the middle.

[0022] Figure 5 The figure is a cross-sectional structural diagram of a fixing seat of a tensioning mechanism for a laminating machine.

[0023] Figure 6 The figure is a structural diagram of the adjustment components of the tensioning mechanism for the laminating machine.

[0024] Figure 7 It is a partial cross-sectional structural diagram of a movable sleeve of a tensioning mechanism used in a laminating machine.

[0025] Figure 8 The figure is a cross-sectional structural diagram of a sliding sleeve of a tensioning mechanism for a laminating machine.

[0026] Fig. 9 The figure is a cross-sectional structural diagram of a baffle plate used in a tensioning mechanism of a laminating machine. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example 1, reference Figure 1 to Figure 9 , which is the first embodiment of the present invention, and this embodiment provides a tensioning mechanism for a laminating machine. The tensioning mechanism for the laminating machine includes a main component 100, including a laminating machine body 101, a support member 102, a reel 103 and a film roll 104. The support member 102 is arranged on one side of the laminating machine body 101, the reel 103 is located in the support member 102, and the film roll 104 is fixed to the surface of the reel 103.

[0031] The laminating machine body 101 is of prior art and is used for surface laminating protection and decorative treatment of various products. The support member 102 is used to support the reel 103 , and the reel 103 is used to reel in and out the film roll 104 .

[0032] The adjustment component 200 is arranged in the laminating machine body 101, and includes a fixed seat 201a fixed in the laminating machine body 101, a support shaft 201b is rotatably connected in the fixed seat 201a, a support wheel 201c is fixed to the surface of the support shaft 201b, a support frame 201d is fixed to one side of the fixed seat 201a, a support rod 201e is hinged in the support frame 201d, a pressure plate 201f is fixed to the end of the support rod 201e, a friction pad 201g is fixed to the bottom of the pressure plate 201f, and an inclined surface 201a-1 is arranged on one side of the fixed seat 201a.

[0033] The fixed seat 201a is used to support the support shaft 201b, so that the support shaft 201b supports the support wheel 201c, so that the two support wheels 201c stably support one end of the reel 103, and the support frame 201d is used to support the support rod 201e, and the support rod 201e is used to support the pressure plate 201f. The friction pad 201g is squeezed by the pressure plate 201f, so that the friction pad 201g can squeeze the reel 103, thereby hindering the rotation of the reel 103.

[0034] When the film roll 104 needs to be replaced, first, lift the pressure plate 201f to move the friction pad 201g away from the reel 103. At this time, pull the support member 102 so that the support member 102 drives the reel 103 away from the fixing seat 201a, thereby removing the film roll 104.

[0035] When a new film roll 104 needs to be replaced, the reel 103 can be aligned with the inclined surface 201a-1 set on one side of the fixed seat 201a, and the support member 102 can be pushed so that the support member 102 drives the reel 103 to approach the inclined surface 201a-1, so that the reel 103 slides from the inclined surface 201a-1 to the top of the two support wheels 201c, so that the reel 103 can rotate in the fixed seat 201a. At this time, the friction pad 201g can be used to squeeze the reel 103 again.

[0036] Specifically, the support member 102 includes a placement frame 102a disposed on the surface of the reel 103, a blocking block 102b is fixed to one side of the placement frame 102a, and a pulley 102c is disposed at the bottom of the placement frame 102a.

[0037] The placement rack 102a is used to support the reel 103, the blocking block 102b is used to block the film roll 104 to prevent the film roll 104 from deflecting, and the pulley 102c is used to support the placement rack 102a to facilitate the movement of the placement rack 102a, thereby improving the efficiency of replacing the film roll 104.

[0038] Specifically, the adjustment component 200 also includes an extrusion member 202, which is arranged on one side of the pressure plate 201f, including a push plate 202a fixed to one side of the pressure plate 201f, an extrusion sleeve 202b is hinged on one side of the push plate 202a, a movable sleeve 202c slides inside the extrusion sleeve 202b, and a first spring 202d is arranged inside the movable sleeve 202c.

[0039] The push plate 202a is used to push the pressure plate 201f, so that the pressure plate 201f drives the friction pad 201g to squeeze the reel 103, and the first spring 202d is in a compressed state. Through the return elastic force of the first spring 202d, the extrusion sleeve 202b can push the push plate 202a.

[0040] A limit strip is provided on the surface of the movable sleeve 202c, and a slot for the limit strip to slide is provided in the extrusion sleeve 202b, so that the relative position between the movable sleeve 202c and the extrusion sleeve 202b is limited to prevent the movable sleeve 202c and the extrusion sleeve 202b from being completely separated.

[0041] Specifically, the extrusion member 202 further includes a fixed shaft 202e fixed in the laminating machine body 101, a swing rod 202f is rotatably connected to the surface of the fixed shaft 202e, and an end of the swing rod 202f is hinged to the end of the movable sleeve 202c.

[0042] The fixed shaft 202e is used to support the swing rod 202f, and the swing rod 202f is used to support the movable sleeve 202c. By squeezing the swing rod 202f, the thrust of the first spring 202d on the squeezing sleeve 202b can be adjusted.

[0043] Specifically, the adjustment component 200 also includes an adjustment member 203, which is arranged in the movable sleeve 202c, including an adjustment gear 203a rotatably connected to the movable sleeve 202c, a rotating gear 203b is arranged on one side of the adjustment gear 203a, an adjustment rod 203c is fixed on one side of the rotating gear 203b, a threaded shaft 203d is slidably connected to the surface of the adjustment rod 203c, the threaded shaft 203d is rotatably connected to the movable sleeve 202c through a thread, and an extrusion disk 203e is fixed to the end of the threaded shaft 203d, and the extrusion disk 203e is located at one end of the first spring 202d.

[0044] The adjusting gear 203a and the rotating gear 203b are meshed. By rotating the adjusting gear 203a, the rotating gear 203b can be driven to rotate, so that the rotating gear 203b drives the adjusting rod 203c to rotate, and the adjusting rod 203c drives the threaded shaft 203d to rotate. When the threaded shaft 203d rotates, the threaded shaft 203d can be moved in the movable sleeve 202c, thereby driving the extrusion disk 203e to squeeze the first spring 202d, thereby adjusting the elastic force of the first spring 202d. At this time, the initial resistance to the reel 103 is adjusted to meet the tension requirements of different coating processes.

[0045] Example 2, reference Figure 1 to Figure 9 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0046] Specifically, the adjustment component 200 also includes a detection part 204, which is arranged in the laminating machine body 101, including a fixed column 204a fixed to one side of the laminating machine body 101, a rotating rod 204b is rotatably connected in the fixed column 204a, a detection rod 204c is fixedly connected to the surface of the rotating rod 204b, one end of the detection rod 204c is rotatably connected to a detection wheel 204d, and a counterweight block 204e is fixed to the other end of the detection rod 204c.

[0047] The fixed column 204a is used to support the rotating rod 204b so that the rotating rod 204b can rotate stably. The rotating rod 204b is used to support the detection rod 204c so that the detection rod 204c can rotate with the rotating rod 204b as the fulcrum. The counterweight block 204e at the end of the rotating rod 204b is used to make the detection wheel 204d at the other end of the rotating rod 204b fit the surface of the film roll 104. As the diameter of the film roll 104 changes, the rotating rod 204b rotates accordingly.

[0048] Specifically, the detection member 204 further includes an adjustment disk 204f, which is fixed to the surface of the rotating rod 204b and is located at one side of the swing rod 202f.

[0049] The adjusting disk 204f is an eccentric wheel structure, which can be driven by the rotating rod 204b to rotate on one side of the swing rod 202f, so that the adjusting disk 204f squeezes the swing rod 202f, thereby controlling the swing rod 202f to approach or move away from the rotating rod 204b.

[0050] Specifically, the adjustment component 200 also includes a reset member 205, which is arranged in the laminating machine body 101, including a support column 205a fixed in the laminating machine body 101, and the surface of the support column 205a is rotatably connected to a reset rod 205b, a lever 205c is fixed to one side of the reset rod 205b, and a driving rod 205d is fixed to the surface of the rotating rod 204b.

[0051] The support column 205a is used to support the reset rod 205b. A protrusion is set on one side of the extrusion sleeve 202b, and the protrusion slides in the reset rod 205b. By moving the reset rod 205b, the extrusion sleeve 202b can be driven to move through the protrusion. While moving the reset rod 205b, the lever 205c can be moved, so that the lever 205c can squeeze the driving rod 205d, so that the driving rod 205d drives the rotating rod 204b to rotate, so that the detection rod 204c drives the detection wheel 204d away from the film roll 104.

[0052] Specifically, a slide bar 205e is fixed to the end of the reset rod 205b, a driving handle 205f is fixed to the top of the slide bar 205e, a slide sleeve 205g slides on the surface of the slide bar 205e, a slide plate 205h is fixed in the slide sleeve 205g, and a second spring 205i is arranged in the slide plate 205h.

[0053] By pushing the driving handle 205f, the driving handle 205f drives the slide bar 205e to move, and the slide bar 205e drives the sliding sleeve 205g and the slide plate 205h to move. The slide plate 205h slides in the sliding rod 205e, and the return elastic force of the second spring 205i can make the sliding sleeve 205g close to the top of the laminating machine body 101.

[0054] Specifically, the reset member 205 also includes an insertion rod 205j sliding in the slide plate 205h, a third spring 205k is fixed to the end of the insertion rod 205j, a baffle 205l is fixed to the top of the laminating machine body 101, a plug hole 205l-1 is opened on the baffle 205l, an extrusion rod 205m slides in the plug hole 205l-1, a fourth spring 205n is sleeved on the surface of the extrusion rod 205m, and a reset button 205o is fixed to the end of the extrusion rod 205m.

[0055] When the sliding sleeve 205g moves, it can drive the insertion rod 205j to slide on the side of the baffle 205l. Through the reset force of the third spring 205k, when the insertion rod 205j moves to the side of the socket 205l-1, the insertion rod 205j can be inserted into the socket 205l-1. At this time, the insertion rod 205j can be located on the side of the extrusion rod 205m. By pressing the reset button 205o, the extrusion rod 205m can squeeze the insertion rod 205j out of the socket 205l-1.

[0056] In summary, the present invention has the following beneficial effects: 1. It can maintain constant tension and ensure stable tension of the coating; 2. It can automatically adjust the resistance to the reel 103 as the diameter of the film roll 104 changes, ensuring that the laminating tension is constant within a certain range under different film roll 104 diameters; 3. When replacing the film roll 104, there is no need to manually adjust the tensioning mechanism repeatedly, thereby improving work efficiency; 4. The laminating tension can be adjusted to meet the tension requirements of different laminating processes.

[0057] During use, when the laminating machine is started, the film material can be pulled, and as the production proceeds, the diameter of the film roll 104 can be gradually reduced.

[0058] At this time, under the action of the counterweight block 204e, the detection wheel 204d at the other end of the rotating rod 204b can be attached to the surface of the film roll 104. As the diameter of the film roll 104 changes, the rotating rod 204b rotates accordingly. At this time, the adjusting disk 204f can be driven by the rotating rod 204b to rotate on one side of the rocker arm 202f. At this time, the rocker arm 202f can approach the rotating rod 204b, so that the supporting force of the rocker arm 202f on the movable sleeve 202c is reduced. At this time, the thrust of the first spring 202d on the extrusion sleeve 202b is reduced, so that the thrust of the push plate 202a on the pressure plate 201f is reduced, thereby reducing the extrusion pressure of the friction pad 201g on the reel 103, so that the resistance to the reel 103 can be automatically adjusted as the diameter of the film roll 104 changes, ensuring that the coating tension is constant within a certain range under different film roll 104 diameters.

[0059] When the film roll 104 is used up and the reel 103 needs to be removed, the driving handle 205f is first pushed, so that the driving handle 205f drives the slide bar 205e to move, and the slide bar 205e drives the sliding sleeve 205g and the slide plate 205h to move. At this time, the insertion rod 205j slides on the side of the baffle 205l, and with the movement of the slide bar 205e, the insertion rod 205j moves to the side of the socket 205l-1, and the reset elastic force of the third spring 205k makes the insertion rod 205j inserted into the socket 205l-1. At this time, the insertion rod 205j is located on the side of the extrusion rod 205m, thereby positioning the position of the slide bar 205e.

[0060] During the movement of the sliding rod 205e, the reset rod 205b drives the extrusion sleeve 202b to move, so that the extrusion sleeve 202b drives the pressure plate 201f away from the reel 103 through the push plate 202a, thereby releasing the extrusion on the reel 103. While the reset rod 205b moves, the driving rod 205d can be squeezed through the lever 205c, so that the driving rod 205d drives the rotating rod 204b to rotate, thereby the detection rod 204c drives the detection wheel 204d away from the film roll 104.

[0061] At this time, the placement rack 102a is pulled to drive the reel 103 to move out of the laminator body 101, and a new film roll 104 and reel 103 can be replaced on the placement rack 102a.

[0062] Move the placement rack 102a to one side of the laminator body 101, and align the reel 103 with the inclined surface 201a-1 set on one side of the fixed seat 201a. By pushing the placement rack 102a, the placement rack 102a drives the reel 103 to approach the inclined surface 201a-1, so that the reel 103 slides from the inclined surface 201a-1 to the top of the two support wheels 201c, so that the reel 103 can rotate in the fixed seat 201a. At this time, pressing the reset button 205o can make the squeezing rod 205m squeeze the insertion rod 205j out of the insertion hole 205l-1, and under the action of the reset elastic force of the first spring 202d, the friction pad 201g can squeeze the reel 103 again.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A tensioning mechanism for a laminating machine, Features: include, A main body component (100) comprises a laminating machine body (101), a support member (102), a reel (103) and a film roll (104), wherein the support member (102) is arranged on one side of the laminating machine body (101), the reel (103) is located inside the support member (102), and the film roll (104) is fixed to the surface of the reel (103); An adjustment component (200) is arranged in the laminating machine body (101), comprising a fixed seat (201a) fixed in the laminating machine body (101), a support shaft (201b) rotatably connected in the fixed seat (201a), a support wheel (201c) fixed to the surface of the support shaft (201b), a support frame (201d) fixed to one side of the fixed seat (201a), a support rod (201e) hinged in the support frame (201d), a pressure plate (201f) fixed to the end of the support rod (201e), a friction pad (201g) fixed to the bottom of the pressure plate (201f), and an inclined surface (201a-1) is provided on one side of the fixed seat (201a).

2. The tensioning mechanism for a laminating machine according to claim 1, Features: The support member (102) comprises a placement frame (102a) arranged on the surface of the reel (103), a blocking block (102b) is fixed to one side of the placement frame (102a), and a pulley (102c) is arranged at the bottom of the placement frame (102a).

3. The tensioning mechanism for a laminating machine as claimed in claim 2, Features: The adjustment assembly (200) further comprises an extrusion member (202) arranged on one side of the pressure plate (201f), comprising a push plate (202a) fixed to one side of the pressure plate (201f), an extrusion sleeve (202b) being hingedly connected to one side of the push plate (202a), a movable sleeve (202c) sliding inside the extrusion sleeve (202b), and a first spring (202d) being arranged inside the movable sleeve (202c).

4. The tensioning mechanism for a laminating machine as claimed in claim 3, Features: The extrusion member (202) further comprises a fixed shaft (202e) fixed in the laminating machine body (101), the surface of the fixed shaft (202e) being rotatably connected to a swing rod (202f), the end of the swing rod (202f) being hinged to the end of the movable sleeve (202c).

5. The tensioning mechanism for a laminating machine as claimed in claim 4, Features: The adjustment assembly (200) further comprises an adjustment member (203), which is arranged in the movable sleeve (202c) and comprises an adjustment gear (203a) rotatably connected to the movable sleeve (202c); a rotating gear (203b) is arranged on one side of the adjustment gear (203a); an adjustment rod (203c) is fixed on one side of the rotating gear (203b); a threaded shaft (203d) is slidably connected to the surface of the adjustment rod (203c); the threaded shaft (203d) is rotatably connected to the movable sleeve (202c) via a thread; an extrusion disk (203e) is fixed to the end of the threaded shaft (203d); the extrusion disk (203e) is located at one end of the first spring (202d).

6. The tensioning mechanism for a laminating machine as claimed in claim 5, Features: The adjustment assembly (200) further comprises a detection member (204), which is arranged in the laminating machine body (101) and comprises a fixed column (204a) fixed to one side of the laminating machine body (101), a rotating rod (204b) rotatably connected in the fixed column (204a), a detection rod (204c) fixedly connected to the surface of the rotating rod (204b), a detection wheel (204d) rotatably connected to one end of the detection rod (204c), and a counterweight (204e) fixed to the other end of the detection rod (204c).

7. The tensioning mechanism for a laminating machine according to claim 6, Features: The detection member (204) further comprises an adjustment disk (204f), wherein the adjustment disk (204f) is fixed to the surface of the rotating rod (204b), and the adjustment disk (204f) is located on one side of the swing rod (202f).

8. The tensioning mechanism for a laminating machine according to claim 6 or 7, Features: The adjustment assembly (200) further comprises a reset member (205), which is arranged in the laminating machine body (101) and comprises a support column (205a) fixed in the laminating machine body (101), a reset rod (205b) being rotatably connected to the surface of the support column (205a), a shift rod (205c) being fixed to one side of the reset rod (205b), and a driving rod (205d) being fixed to the surface of the rotating rod (204b).

9. The tensioning mechanism for a laminating machine according to claim 8, Features: A sliding rod (205e) is fixed to the end of the reset rod (205b), a driving handle (205f) is fixed to the top of the sliding rod (205e), a sliding sleeve (205g) slides on the surface of the sliding rod (205e), a sliding plate (205h) is fixed inside the sliding sleeve (205g), and a second spring (205i) is arranged inside the sliding plate (205h).

10. The tensioning mechanism for a laminating machine according to claim 9, Features: The reset member (205) further comprises an insertion rod (205j) sliding in the slide plate (205h), a third spring (205k) being fixed to the end of the insertion rod (205j), a baffle (205l) being fixed to the top of the laminating machine body (101), a plug hole (205l-1) being provided on the baffle (205l), an extrusion rod (205m) sliding in the plug hole (205l-1), a fourth spring (205n) being sleeved on the surface of the extrusion rod (205m), and a reset button (205o) being fixed to the end of the extrusion rod (205m).

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