Auxiliary threading device and coating machine

Abstract

The utility model belongs to the technical field of coating machines, and discloses an auxiliary threading device and a coating machine. The auxiliary threading device comprises a connecting rod and two transmission assemblies. The two transmission assemblies are arranged in a spaced mode, each transmission assembly comprises a chain and a plurality of chain wheels, the chains are wound around the chain wheels to form a threading loop, and the chain wheels of the two transmission assemblies rotate synchronously and can drive the two chains to rotate. The connecting rod comprises a rod piece and two connecting sleeves, the connecting sleeves are fixedly connected to the two chains, the two ends of the rod piece are inserted into the connecting sleeves respectively, movable gaps are formed between the two ends of the rod piece and the bottoms of the connecting sleeves in a spaced mode, the movable gaps are used for axial movement of the rod piece along the connecting sleeves, one end of the penetrating belt is connected to the rod piece, the chains rotate, and the rod piece can be driven to move along a penetrating belt loop. The auxiliary tape threading device can solve the problem that tape threading is inconvenient due to narrow operation space, can avoid the phenomenon of blocking during tape threading, and ensures smooth tape threading.

Description

TECHNICAL FIELD

[0001] The utility model relates to coating machine technical field especially, relates to a kind of auxiliary threading device and coating machine. BACKGROUND

[0002] The threading process of traditional coating machine needs to be realized manually, but due to the existence of sealing plate on the side of coating machine, the internal space of coating machine is narrow, which is not convenient for manual threading operation. The prior art provides a threading device, which includes two chains and multiple sprockets. The two chains can pass through the multiple corresponding sprockets respectively and rotate synchronously. A threading rod is arranged between the two synchronously rotating chains, and the foil for threading is attached to the threading rod. The above-mentioned scheme changes the position of the threading rod fixedly arranged between the two chains through the synchronous rotation of the two chains relative to the multiple corresponding sprockets, thereby conveniently and quickly realizing the threading process.

[0003] However, in the above-mentioned scheme, the two ends of the threading rod are fixedly arranged with the two chains respectively. If the two chains are out of sync during movement, the two ends of the threading rod will be blocked, causing the threading rod to move and jam, which affects the smooth progress of the threading process.

[0004] Therefore, there is an urgent need for an auxiliary threading device and a coating machine to solve the above problems. UTILITY MODEL CONTENTS

[0005] According to one aspect of the utility model, the purpose is to provide an auxiliary threading device that can solve the problem of narrow operation space and inconvenient threading, and can avoid the jamming phenomenon during threading to ensure the smooth progress of threading.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The auxiliary threading device comprises:

[0008] Two transmission assemblies arranged at intervals, wherein the transmission assembly comprises a chain and multiple sprockets, the chain is wound on the multiple sprockets to form a threading loop, and the sprockets of the two transmission assemblies rotate synchronously to drive the two chains to rotate.

[0009] A connecting rod comprising a rod member and two connecting sleeves, the connecting sleeves are fixedly connected to the two chains, the two ends of the rod member are respectively inserted into the connecting sleeves and are spaced apart from the bottom of the connecting sleeves to form an active gap, the active gap is used for the axial movement of the rod member along the connecting sleeve, one end of the threading rod is connected to the rod member, and the chain rotates to drive the rod member to move along the threading loop.

[0010] As a preferred scheme of the auxiliary threading device provided by the utility model, the rod member is coaxially and rotatably inserted into the connecting sleeve.

[0011] As a preferred scheme of the auxiliary threading device provided by the utility model, the auxiliary threading device further comprises a synchronous transmission rod, the synchronous transmission rod is coaxially connected between the corresponding chain wheels of the two transmission assemblies.

[0012] As a preferred scheme of the auxiliary threading device provided by the utility model, the auxiliary threading device further comprises a rotating driving member, the rotating driving member is connected to the chain wheel and can drive the chain wheel to rotate.

[0013] As a preferred scheme of the auxiliary threading device provided by the utility model, the rotating driving member is a hand wheel, and the hand wheel is coaxially connected to any chain wheel.

[0014] As a preferred scheme of the auxiliary threading device provided by the utility model, the transmission assembly further comprises a plurality of tensioning wheels, the plurality of tensioning wheels are arranged between the chain wheel at the initial position of the threading loop and the chain wheel at the end position of the threading loop, and the chain can be engaged with the plurality of tensioning wheels.

[0015] As a preferred scheme of the auxiliary threading device provided by the utility model, the transmission assembly further comprises a chain wheel protective cover, and a part of the circumferential side of the chain wheel at the initial position of the threading loop and the chain wheel at the end position of the threading loop is provided with the chain wheel protective cover.

[0016] As a preferred scheme of the auxiliary threading device provided by the utility model, the transmission assembly further comprises a transition wheel, the transition wheel is located between the chain wheel at the initial position of the threading loop and the chain wheel at the end position of the threading loop, and the chain can pass around the transition wheel on the opposite sides in the radial direction.

[0017] As a preferred scheme of the auxiliary threading device provided by the utility model, the transmission assembly further comprises a plurality of mounting seats, the plurality of mounting seats are respectively fixedly connected to the rack of the coating machine, and the chain wheels are one-to-one corresponding and rotatably connected to the mounting seats.

[0018] According to another aspect of the utility model, the purpose is to provide a coating machine, the coating machine includes a rack and a plurality of coating transmission rollers, and further includes the auxiliary threading device according to any one of the above schemes, the plurality of coating transmission rollers are respectively arranged on the rack, the auxiliary threading device is arranged at intervals between the plurality of coating transmission rollers, the threading sequentially passes around the plurality of coating transmission rollers and is connected to the connecting rod.

[0019] The utility model has the advantages of:

[0020] The auxiliary threading device provided by the utility model comprises a connecting rod and two transmission assemblies. The two transmission assemblies are arranged at intervals, the transmission assembly comprises a chain and a plurality of chain wheels, the chain is wound on the plurality of chain wheels to form a threading loop, the chain wheels of the two transmission assemblies rotate synchronously and can drive the two chains to rotate, the connecting rod is connected between the two chains, and the end of the threading device is connected to the connecting rod. Through cooperation of the chain wheel and the chain, transmission can be realized, the connecting rod can be driven to move on the threading loop, the threading process is realized, and the threading convenience is improved. The connecting rod comprises a rod member and two connecting sleeves, the connecting sleeves are fixedly connected to the two chains, the two ends of the rod member are respectively inserted into the connecting sleeves and form a movable gap with the bottoms of the connecting sleeves, and the movable gap is used for axial movement of the rod member along the connecting sleeves. Through cooperation of the rod member and the connecting sleeve, when the rotation of the two chains is out of synchronization, the movable gap can provide space for flexible movement of the rod member in the axial direction, so that the rod member is adaptively adjusted in position relative to the connecting sleeve according to the running condition of the chain, the flexibility of the auxiliary threading device is improved, the jamming phenomenon in the threading process is avoided, and the smooth threading process is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the utility model. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the contents of the embodiments of the utility model and the drawings by those skilled in the art without any creative effort.

[0022] Figure 1 is the external structure front view of the coating machine provided by the embodiments of the utility model;

[0023] Figure 2 is the internal structure side view of the coating machine provided by the embodiments of the utility model;

[0024] Figure 3 is the structure schematic view of the auxiliary threading device provided by the embodiments of the utility model;

[0025] Figure 4 is the structure schematic view of the connecting rod and part of the chain wheel provided by the embodiments of the utility model;

[0026] Figure 5 is Figure 4 is the local enlarged view of the structure mark A in the figure;

[0027] Figure 6 is the top view of the connecting rod and part of the chain wheel provided by the embodiments of the utility model;

[0028] Figure 7 is Figure 6 is a sectional view taken along the line B-B in

[0029] Figure 8 is Figure 7 is a close-up view of the structure labeled C in

[0030] in the drawings:

[0031] 1, belt;

[0032] 10, frame; 20, coating drive roller;

[0033] 100, drive assembly; 110, chain; 120, sprocket; 131, first tensioner; 132, second tensioner; 133, third tensioner; 134, fourth tensioner; 140, sprocket guard; 150, transition wheel; 160, mounting base;

[0034] 200, connecting rod; 210, rod member; 220, connecting sleeve; 230, movable gap;

[0035] 300, synchronous drive rod;

[0036] 400, hand wheel. DETAILED DESCRIPTION

[0037] The technical solutions of the embodiments of the present application will be further described below in conjunction with the drawings and through specific embodiments.

[0038] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0039] Therefore, the detailed description of the embodiments of the present application provided in the drawings below is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0040] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0041] In the description of the utility model, it needs to explain that, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0042] In the description of the utility model, it also needs to explain that, unless otherwise explicitly specified and limited, the terms "set", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0043] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0044] In the embodiment, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the utility model generally represents that the front and rear associated objects have an "or" relationship.

[0045] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0046] Figure 1The utility model discloses an external structure front view of coating machine provided by the embodiment of the utility model shows, Figure 2 The utility model discloses an internal structure side view of coating machine provided by the embodiment of the utility model shows, Figure 3 The utility model discloses an auxiliary threading device structure schematic view provided by the embodiment of the utility model shows, Figures 1-3 The utility model provides a kind of auxiliary threading device and coating machine. The coating machine includes rack 10 and multiple coating transmission roller 20, further include the auxiliary threading device provided by the embodiment of the utility model.

[0047] Specifically, multiple coating transmission roller 20 are arranged parallel to each other, and are respectively arranged on the rack 10 with spacing from each other. The rack 10 specifically includes a base and a side enclosure box, the side enclosure box is arranged on the base, one end of the side enclosure box is provided with an opening, the threading 1 can be guided from the opening and through two coating transmission roller 20, and extend into the side enclosure box, and then pass through the foil adhesive connection at the end and be connected to the auxiliary threading device after passing through multiple coating transmission roller 20 one by one in the side enclosure box.

[0048] Referring to Figure 2 And Figure 3 The auxiliary threading device provided by the embodiment includes connecting rod 200 and two transmission assemblies 100. Two transmission assemblies 100 are arranged with spacing from each other, and the transmission assembly 100 includes chain 110 and multiple sprockets 120, the chain 110 is engaged and arranged on the multiple sprockets 120 to form a threading loop, and the sprockets 120 of the two transmission assemblies 100 rotate synchronously to drive the two chains 110 to rotate. The connecting rod 200 is arranged between the two chains 110 and is used for connecting the foil at the end of the threading 1. The chain 110 rotates under the drive of the sprocket 120, and the position of the connecting rod 200 can be changed between the sprocket 120 at the initial position of the threading loop and the sprocket 120 at the end position of the threading loop. When the connecting rod 200 moves from the initial position of the threading loop to the end position of the threading loop, the threading process is completed.

[0049] Specifically, in some embodiments, each transmission assembly 100 specifically includes two sprockets 120, and the sprocket 120 at the initial position of the threading loop is located at one end of the auxiliary threading device away from the opening of the side enclosure box, the sprocket 120 at the end position of the threading loop is located at one end of the auxiliary threading device close to the opening of the side enclosure box, and the distance between the sprocket 120 at the end position of the threading loop and the base is greater than the distance between the sprocket 120 at the initial position of the threading loop and the base.

[0050] In detail, the auxiliary threading device further comprises a synchronous transmission rod 300 coaxially connected between the corresponding sprockets 120 of the two transmission assemblies 100. In some embodiments, the synchronous transmission rod 300 can be connected between the two sprockets 120 at the end position of the threading loop to ensure the synchronization of the rotation of the sprockets 120 in the two transmission assemblies 100. In other embodiments, the synchronous transmission rod 300 can also be arranged between the two sprockets 120 at the initial position of the threading loop. The arrangement position of the synchronous transmission rod 300 can be selected according to the actual structure and installation space of the coating machine to enable the synchronous rotation of the sprockets 120 in the two transmission assemblies 100.

[0051] It should be noted that the auxiliary threading device further comprises a rotary drive. The rotary drive is connected to the rotating shaft of the sprocket 120 and can drive the rotating shaft to rotate the sprocket 120. The sprocket 120 connected to the rotary drive is the driving sprocket, and the sprocket 120 not connected to the rotary drive is the driven sprocket. The synchronous transmission rod 300 is preferably coaxially arranged with the driving sprocket to improve the reliability of synchronous transmission. In some embodiments, the rotary drive can be a driving motor, which is a prior art, and its structure and principle will not be described here.

[0052] Referring to Figure 1 and Figure 3 In some embodiments, the rotary drive is a hand wheel 400 coaxially connected to any of the sprockets 120. The user can control the rotation of the sprocket 120 by rotating the hand wheel 400.

[0053] In detail, referring to Figure 3 The transmission assembly 100 further comprises a plurality of mounting seats 160. The plurality of mounting seats 160 are respectively fixedly connected to the side enclosure of the frame 10 of the coating machine, and the sprockets 120 are one-to-one corresponding and rotatably connected to the mounting seats 160. The mounting seat 160 specifically has a T-shaped structure, comprising a mounting portion 161 and a connecting portion 162 integrally formed at a right angle. The mounting portion 161 can be fixedly connected to the side enclosure by connecting bolts, and the connecting portion 162 is provided with a through hole, and the rotating shaft of the sprocket 120 is rotatably arranged in the through hole.

[0054] More specifically, the transmission assembly 100 further comprises a plurality of tensioning wheels. The plurality of tensioning wheels are arranged between the sprockets 120 at the initial position of the threading loop and the sprockets 120 at the end position of the threading loop, and the chain 110 can be engaged with the plurality of tensioning wheels. In some embodiments, referring to Figure 2 and Figure 3The four tensioning wheels include a first tensioning wheel 131, a second tensioning wheel 132, a third tensioning wheel 133 and a fourth tensioning wheel 134. The first tensioning wheel 131 and the second tensioning wheel 132 are located above the third tensioning wheel 133 and the fourth tensioning wheel 134, and the first tensioning wheel 131 and the second tensioning wheel 132 are sequentially and spaced apart along a direction from the end position of the threading loop to the initial position of the threading loop, and the third tensioning wheel 133 and the fourth tensioning wheel 134 are sequentially and spaced apart along a direction from the initial position of the threading loop to the end position of the threading loop. The chain 110 is engaged below the first tensioning wheel 131 and the second tensioning wheel 132, and above the third tensioning wheel 133 and below the fourth tensioning wheel 134. By arranging a plurality of tensioning wheels between the sprocket 120 at the initial position of the threading loop and the sprocket 120 at the end position of the threading loop, the chain 110 can be tensioned to ensure the stability and reliability of the rotation of the chain 110.

[0055] More specifically, the transmission assembly 100 further includes a transition wheel 150. The transition wheel 150 is located between the sprocket 120 at the initial position of the threading loop and the sprocket 120 at the end position of the threading loop, and specifically between the sprocket 120 at the initial position of the threading loop and the position where the second tensioning wheel 132 and the third tensioning wheel 133 are arranged, as shown in Figure 2 and Figure 3 The chain 110 can pass around and engage the opposite sides of the transition wheel 150 in the radial direction. By the transition wheel 150, the chain 110 can be supported in the annular formed by the chain 110 to ensure the reliability and smooth rotation of the chain 110.

[0056] As a preferred, the transmission assembly 100 further includes a sprocket guard 140, and a part of the circumferential side of the sprocket 120 at the initial position of the threading loop and the sprocket 120 at the end position of the threading loop is covered by the sprocket guard 140. A gap is left between the sprocket guard 140 and the circumferential side of the sprocket 120 to avoid scratching the circumferential side gear of the sprocket 120. By the sprocket guard 140, the sprocket 120 can be protected from damage.

[0057] Figure 4 A structure schematic view of a connecting rod and part of a sprocket according to an embodiment of the present application is shown; Figure 5 A structure schematic view of a connecting rod and part of a sprocket according to an embodiment of the present application is shown; Figure 4 A local enlarged view with structure mark A in the middle is shown; Figure 6 A top view of a connecting rod and part of a sprocket according to an embodiment of the present application is shown. Refer to Figures 3-6The connecting rod 200 includes a rod 210 and two connecting sleeves 220. The connecting sleeves 220 are fixed to opposite sides of the two chains 110, and both ends of the rod 210 are inserted into the connecting sleeves 220. Through the connecting sleeves 220, a reliable connection of the rod 210 between the two chains 110 can be achieved.

[0058] Figure 7 Show Figure 6 Sectional view along the BB direction; Figure 8 Show Figure 7 A magnified view of the structure marked C in the middle. (Refer to...) Figure 7 and Figure 8 The two ends of the rod 210 and the bottom of the connecting sleeve 220 form a movable gap 230. This movable gap 230 allows the rod 210 to move axially along the connecting sleeve 220. One end of the threading belt 1 is connected to the rod 210. When the chain 110 rotates, it can drive the rod 210 to move along the threading loop. Through the cooperation of the rod 210 and the connecting sleeve 220, when the rotation of the two chains is asynchronous, the movable gap 230 can provide space for the rod 210 to move flexibly in the axial direction. This allows the rod 210 to adaptively adjust its position relative to the connecting sleeve 220 according to the movement of the chain 110, improving the flexibility of the auxiliary threading device, avoiding jamming during the threading process, and ensuring the smooth progress of the threading process.

[0059] Preferably, the rod 210 is coaxially and rotatably inserted into the connecting sleeve 220. This arrangement further enhances the flexibility between the rod 210 and the connecting sleeve 220, thereby improving the flexibility and reliability of the auxiliary threading device.

[0060] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An assisted threading device, characterized in that, The auxiliary threading device comprises: two transmission assemblies (100) arranged at intervals, each of the transmission assemblies (100) comprising a chain (110) and a plurality of sprockets (120), the chain (110) being arranged around the plurality of sprockets (120) to form a threading loop, and the sprockets (120) of the two transmission assemblies (100) being synchronously rotatable to drive the two chains (110) to rotate; a connecting rod (200) comprising a rod member (210) and two connecting sleeves (220), the connecting sleeves (220) being fixedly connected to the two chains (110), and the rod member (210) being inserted into the connecting sleeves (220) at two ends thereof and being spaced from the bottoms of the connecting sleeves (220) to form movable gaps (230), the movable gaps (230) being used for the axial movement of the rod member (210) along the connecting sleeves (220), and one end of a threading (1) being connected to the rod member (210), so that the rotation of the chains (110) can drive the rod member (210) to move along the threading loop.

2. The device according to claim 1, wherein The rod member (210) is coaxially rotatably inserted into the connecting sleeves (220).

3. The device according to claim 1, wherein The auxiliary threading device further comprises a synchronous transmission rod (300) coaxially connected between the corresponding sprockets (120) of the two transmission assemblies (100).

4. The device according to claim 1, wherein The auxiliary threading device further comprises a rotation driving member connected to the sprockets (120) to drive the sprockets (120) to rotate.

5. The device according to claim 4, wherein The rotation driving member is a hand wheel (400) coaxially connected to any of the sprockets (120).

6. The device of claim 1, wherein, The transmission assembly (100) further comprises a plurality of tensioning wheels arranged between the sprockets (120) at the initial position of the threading loop and the sprockets (120) at the end position of the threading loop, and the chain (110) can be engaged with the plurality of tensioning wheels.

7. The device according to claim 1, wherein The transmission assembly (100) further comprises a sprocket protective cover (140), and a part of the circumferential side of the sprockets (120) at the initial position of the threading loop and the sprockets (120) at the end position of the threading loop is covered by the sprocket protective cover (140).

8. The device of claim 1, wherein, The transmission assembly (100) further comprises a transition wheel (150) located between the sprockets (120) at the initial position of the threading loop and the sprockets (120) at the end position of the threading loop, and the chain (110) can pass around the transition wheel (150) on the opposite sides in the radial direction.

9. The belt threading aid of any one of claims 1-8, wherein, The transmission assembly (100) further comprises a plurality of mounting seats (160), and the sprockets (120) are one-to-one corresponding and rotatably connected to the mounting seats (160).

10. Coating machine, characterized in that The auxiliary threading device is arranged between the plurality of coating transmission rollers (20) on the rack (10), and the coating (1) passes through the plurality of coating transmission rollers (20) in sequence and is connected to the connecting rod (200).

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