Drawstring deviation rectifying device

Abstract

The utility model belongs to the technical field of tobacco packaging, and discloses a drawstring deviation rectifying device which comprises a rack, a guide roller, a lifting adjusting assembly and a deviation rectifying assembly, the axial direction of the guide roller is horizontally arranged and rotationally arranged on the rack in the direction perpendicular to the carton conveying direction, the lifting adjusting assembly is arranged on the rack, and the deviation rectifying assembly is arranged on the rack. The deviation rectifying assembly is arranged at the lifting end of the lifting adjusting assembly, the drawstring is wound around the periphery of the guide roller and is horizontally or obliquely wound around the deviation rectifying assembly downwards, and the lifting adjusting assembly is configured to adjust lifting of the deviation rectifying assembly so as to adjust the angle of the drawstring wound around the guide roller and the deviation rectifying assembly. According to the drawstring deviation rectifying device, the deviation rectifying assembly is adjusted to ascend or descend in the vertical direction through the lifting adjusting assembly so as to adjust the angle between the deviation rectifying assembly and the guide roller, the cut-off position and the contact position of the drawstring and the strip box can be rectified under the condition that the traction speed of the drawstring is kept unchanged, and therefore the situation that teeth of the drawstring are staggered is rectified.

Description

Technical Field

[0001] This utility model relates to the field of tobacco packaging technology, and in particular to a belt-guided correction device. Background Technology

[0002] In tobacco packaging, the surface of the carton is wrapped with transparent paper to prevent moisture, mold, and dust, and to improve the product's appearance. However, due to differences in carton size between different products or misalignment of the pull tab with the carton, misalignment of the pull tab can occur.

[0003] Existing tape correction devices primarily correct misalignment by changing the tilt angle of the tape box, thereby altering its contact angle with the transparent paper. However, adjusting the tape boxes at the adjustment station can easily lead to collisions with tape boxes in subsequent transport channels, causing quality issues such as deformation of the tape box's edges and corners.

[0004] Therefore, there is an urgent need to design a new belt alignment device to improve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a belt alignment device to solve the technical problem that when adjusting the belt alignment method by changing the tilt angle of the belt box to change the contact angle with the transparent paper, the belt box in the subsequent transmission channel is easily collided and the edges and corners of the belt box are bumped and deformed.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] The belt alignment device provided by this utility model, in which the strip box is transported horizontally, includes:

[0008] frame;

[0009] The guide roller is axially horizontally arranged and rotatably mounted on the frame perpendicular to the conveying direction of the strip box;

[0010] A lifting and adjusting assembly is mounted on the frame;

[0011] A correction assembly is provided at the lifting end of the lifting adjustment assembly. A pull belt is wound around the outer periphery of the guide roller and horizontally or inclined downwards around the correction assembly. The lifting adjustment assembly is configured to adjust the lifting of the correction assembly to adjust the angle of the pull belt wound around the guide roller and the correction assembly.

[0012] The vertical movement of the correction component is adjusted by the lifting and lowering mechanism to regulate the angle between the correction component and the guide roller. When the correction component rises to the same horizontal plane as the guide roller, the distance between them is minimized, meaning the length of the pull belt between them is at its minimum. As the correction component gradually descends, the distance between the correction component and the guide roller gradually increases, meaning the pull belt between them gradually tilts and its length gradually increases. With the pull belt traction speed remaining constant, this corrects the cutting and contact positions of the pull belt with the carton, thus correcting misalignment of the pull belt. This operation eliminates the need for adjustment of the carton, preventing damage to the carton's corners and ensuring a simple and convenient structure.

[0013] As a preferred embodiment of the belt alignment device, the lifting adjustment assembly includes two adjusting screws, the axial direction of which is vertical, and the two ends of the adjusting screws are respectively rotatably connected to the frame. The alignment assembly is threadedly connected to the adjusting screws.

[0014] The alignment component is threaded onto two adjusting screws. The two adjusting screws rotate synchronously to adjust the height of the alignment component. By setting two adjusting screws, the torsion or tilt of the alignment component can be suppressed. The resulting two-point support has better stability and rigidity, and also has good vibration resistance.

[0015] As a preferred embodiment of the belt alignment device, an adjustment handle is provided at both ends or one of the two ends of the adjusting screw.

[0016] It provides a handheld position for operators to manually adjust the rotation of the adjusting screw, making it convenient for operators to rotate the adjusting screw.

[0017] As a preferred embodiment of the belt alignment device, the alignment component includes:

[0018] Two internal threaded sleeves are provided, and the two internal threaded sleeves are threadedly connected to the periphery of the two adjusting screws in a one-to-one correspondence.

[0019] A connecting rod, the connecting rod being arranged axially in the horizontal direction, with its two ends respectively disposed on the circumference of the two internal threaded sleeves.

[0020] The internal threaded sleeve is threaded onto the adjusting screw, and the connecting rod connects the two internal threaded sleeves. The connecting rod can be raised or lowered by rotating the two adjusting screws in the forward or reverse direction. It has a large adjustment range and good versatility.

[0021] As a preferred embodiment of the belt alignment device, the alignment assembly further includes an adjusting roller, which is rotatably sleeved on the periphery of the connecting rod, and the belt is wound around the periphery of the adjusting roller.

[0022] The adjusting roller rotates on the connecting rod along with the traction of the belt, transforming the sliding friction between the belt and the adjusting roller into rolling friction between the adjusting roller and the connecting rod. This reduces the traction force required for belt traction, saves energy, and lowers costs.

[0023] As a preferred embodiment of the belt alignment device, the internal threaded sleeve is further provided with fasteners, which are used to limit the lifting and lowering adjustment of the internal threaded sleeve.

[0024] The fasteners further enhance the tightness of the connection between the internal threaded sleeve and the adjusting screw, reducing the possibility of accidental adjustment and maintaining the positional accuracy after correction.

[0025] As a preferred embodiment of the belt alignment device, the circumference of the internal threaded sleeve is provided with a threaded hole communicating with its inner cavity, and the fastener includes a locking screw, which is threaded into the threaded hole, and the end of the locking screw is movably pressed against the adjusting screw.

[0026] After the alignment component is adjusted, the locking screw is screwed into the threaded hole until the end of the locking screw abuts against the side of the adjusting screw to achieve further locking and fixing. When the alignment component needs to be adjusted, the locking screw is screwed in the opposite direction to move its rod away from the adjusting screw or disengage it from the inner threaded sleeve. The structure is simple, the adjustment is convenient, and the locking is secure.

[0027] As a preferred embodiment of the belt alignment device, the belt alignment device further includes two conveyor rollers. The two conveyor rollers are arranged horizontally and are parallel to each other. There is a gap between the two conveyor rollers. The plane of the gap is tangent to the outer periphery of the alignment component. The belt passes through the transmission gap to pull the belt to be transmitted in the vertical direction.

[0028] Two conveyor rollers rotate relative to each other to pull the belt located between them vertically downwards. This serves two purposes: firstly, it pulls the belt, and secondly, the belt can be leveled as it passes through the box to facilitate subsequent cutting, docking with the carton, and packaging.

[0029] As a preferred embodiment of the belt alignment device, the belt alignment device further includes a cutting component located below the two conveyor rollers for cutting the belt.

[0030] The belt conveyed by the upper conveyor roller has been adjusted by the correction component, so that the belt cut by the cutting component corresponds to the strip box.

[0031] As a preferred embodiment of the belt alignment device, the frame includes a base plate and an upper guide plate, the upper guide plate being located above the base plate, and the strip box being transported between the base plate and the upper guide plate.

[0032] The gap between the base plate and the upper guide plate is matched with the size of the carton, which plays a role in correcting deviation and guiding the carton during transmission, reducing vibration during the transmission process, and improving the accuracy when docking with the pull belt, thus ensuring the quality of the finished package.

[0033] The beneficial effects of this utility model are:

[0034] The vertical movement of the correction component is adjusted by the lifting and lowering mechanism to regulate the angle between the correction component and the guide roller. When the correction component rises to the same horizontal plane as the guide roller, the distance between them is minimized, meaning the length of the pull belt between them is at its minimum. As the correction component gradually descends, the distance between the correction component and the guide roller gradually increases, meaning the pull belt between them gradually tilts and its length gradually increases. With the pull belt traction speed remaining constant, this corrects the cutting and contact positions of the pull belt with the carton, thus correcting misalignment of the pull belt. This operation eliminates the need for adjustment of the carton, preventing damage to the carton's corners and ensuring a simple and convenient structure. Attached Figure Description

[0035] Figure 1 This is a side view of the belt straightening device provided in this embodiment of the utility model;

[0036] Figure 2 This is a front view of the belt straightening device provided in this embodiment of the utility model.

[0037] In the picture:

[0038] 1. Frame; 11. Base plate; 12. Upper guide plate;

[0039] 2. Guide rollers;

[0040] 3. Lifting and adjusting assembly; 31. Adjusting screw; 32. Adjusting handle;

[0041] 4. Correction assembly; 41. Internal threaded sleeve; 42. Connecting rod; 43. Adjusting roller; 44. Locking screw;

[0042] 5. Conveyor rollers;

[0043] 6. Cut off the components;

[0044] 100, carton; 200, pull strap. Detailed Implementation

[0045] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0046] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0049] Existing tape correction devices primarily correct misalignment by changing the tilt angle of the tape box, thereby altering its contact angle with the transparent paper. However, adjusting the tape boxes at the adjustment station can easily lead to collisions with tape boxes in subsequent transport channels, causing quality issues such as deformation of the tape box's edges and corners.

[0050] To solve the above problems, combined with Figure 1 and Figure 2 As shown, this utility model provides a belt correction device. The strip box 100 is transmitted in the horizontal direction, and the belt 200 is transmitted in the vertical direction after passing through the belt correction device.

[0051] like Figure 1 As shown, the belt alignment device includes a frame 1, a guide roller 2, a lifting and adjusting assembly 3, an alignment assembly 4, and a conveying roller 5. The guide roller 2 is axially horizontally arranged and rotatably mounted on the frame 1 perpendicular to the conveying direction of the strip box 100. The lifting and adjusting assembly 3 is mounted on the frame 1, and the alignment assembly 4 is located at the lifting end of the lifting and adjusting assembly 3. The belt 200 is wound around the outer circumference of the guide roller 2 and is wound horizontally or downwardly inclined around the alignment assembly 4. The lifting and adjusting assembly 3 is configured to adjust the lifting and lowering of the alignment assembly 4 to adjust the angle of the belt 200 wound around the guide roller 2 and the alignment assembly 4.

[0052] It is understandable that by adjusting the vertical direction of the correction component 4 through the lifting adjustment component 3, the angle between the correction component 4 and the guide roller 2 is adjusted. When the correction component 4 rises to the same horizontal plane as the guide roller 2, the distance between them is minimal, meaning the length of the pull belt 200 between them is at its minimum. As the correction component 4 gradually descends, the distance between the correction component 4 and the guide roller 2 gradually increases, meaning the pull belt 200 between them gradually tilts and its length gradually increases. With the traction speed of the pull belt 200 remaining constant, the cutting position and contact position between the pull belt 200 and the carton 100 can be corrected, thereby correcting the misalignment of the pull belt 200. The above operation eliminates the need to adjust the carton 100, avoiding damage to the corners of the carton 100 and resulting in deformation. The structure is simple and easy to adjust.

[0053] See also Figure 1 In this embodiment, the frame 1 includes a base plate 11 and an upper guide plate 12. The upper guide plate 12 is located above the base plate 11. The strip box 100 is transported between the base plate 11 and the upper guide plate 12. The gap between the base plate 11 and the upper guide plate 12 matches the size of the strip box 100, which plays a role in correcting deviation and guiding the transport of the strip box 100, reducing the shaking during the transport of the strip box 100, and also improving the accuracy when docking with the pull belt 200, thus ensuring the quality of the packaged product.

[0054] Furthermore, a cutting component 6 is provided above the packaging station of the carton 100. The cutting component 6 is used to cut the pull strap 200 after it has been corrected by the correction component 4, ensuring that the cut pull strap 200 corresponds to the position of the carton 100 at the packaging station. Since the specific structure of the cutting component 6 is existing technology, it will not be described in detail here.

[0055] like Figure 2As shown, the lifting adjustment assembly 3 in this embodiment includes two adjusting screws 31. The axial direction of the adjusting screws 31 is vertical, and both ends of the adjusting screws 31 are rotatably connected to the frame 1. The correction assembly 4 is threadedly connected to the adjusting screws 31. The correction assembly 4 is threadedly connected to the two adjusting screws 31 respectively. The two adjusting screws 31 rotate synchronously, thereby realizing the lifting adjustment of the correction assembly 4. By setting two adjusting screws 31, the torsion or tilting of the correction assembly 4 can be suppressed, and the resulting two-point support has better stability and rigidity, and also has good vibration resistance.

[0056] To facilitate adjustment by the operator, an adjustment handle 32 is provided at both ends or one of the ends of the adjustment screw 31. The adjustment handle 32 is designed to provide a handhold for the operator to manually adjust the rotation of the adjustment screw 31, making it convenient for the operator to rotate the adjustment screw 31.

[0057] Furthermore, the frame 1 also includes a fixing plate (not shown in the figure), which is located above the upper guide plate 12. The fixing plate has through holes, and the other ends of the two adjusting screws 31 away from the base plate 11 pass through the through holes and are connected to the fixing plate. The two ends of the adjusting screws 31 are rotatably connected to the fixing plate and the base plate 11 respectively, which provides good stability.

[0058] See also Figure 2 The correction assembly 4 in this embodiment includes an internal threaded sleeve 41, a connecting rod 42, and an adjusting roller 43. Two internal threaded sleeves 41 are provided, and the two internal threaded sleeves 41 are threadedly connected to the periphery of two adjusting screws 31 in a one-to-one correspondence. The axial direction of the connecting rod 42 is arranged in the horizontal direction, and the two ends of the connecting rod 42 are respectively arranged on the periphery of the two internal threaded sleeves 41. The adjusting roller 43 is rotatably sleeved on the periphery of the connecting rod 42, and the pull belt 200 is wrapped around the periphery of the adjusting roller 43. The internal threaded sleeve 41 is threaded onto the adjusting screw 31, and the connecting rod 42 connects the two internal threaded sleeves 41. The connecting rod 42 can be adjusted by rotating the two adjusting screws 31 in the forward or reverse direction. The adjustment range is large and the versatility is good. In addition, the adjusting roller 43 rotates on the connecting rod 42 along with the traction of the belt 200, which changes the sliding friction between the belt 200 and the adjusting roller 43 into the rolling friction between the adjusting roller 43 and the connecting rod 42. This reduces the traction force required for the belt 200 to pull, saves energy, and reduces costs.

[0059] To improve the stability of the connection between the internal threaded sleeve 41 and the adjusting screw 31, a fastener is also provided on the internal threaded sleeve 41. The fastener is used to limit the lifting and lowering adjustment of the internal threaded sleeve 41. The fastener further strengthens the tightness of the connection between the internal threaded sleeve 41 and the adjusting screw 31, reduces the possibility of accidental adjustment, and maintains the positional accuracy after correction.

[0060] Specifically, such as Figure 2As shown, the inner threaded sleeve 41 has a threaded hole (not shown in the figure) communicating with its inner cavity on its circumference. The fastener includes a locking screw 44, which is threaded into the threaded hole. The end of the locking screw 44 is movably pressed against the adjusting screw 31. After the adjustment of the correction component 4 is completed, the rod of the locking screw 44 is screwed into the threaded hole until the end of the locking screw 44 abuts against the circumference of the adjusting screw 31 to achieve further locking and fixing. When the adjustment of the correction component 4 is required, the locking screw 44 is screwed in the opposite direction to move its rod away from the adjusting screw 31 or disengage it from the inner threaded sleeve 41. The structure is simple, the adjustment is convenient, and the locking is secure.

[0061] like Figure 1 As shown, the belt alignment device also includes two conveyor rollers 5. The two conveyor rollers 5 are arranged horizontally and parallel to each other, with a gap between them. The plane of the gap is tangent to the outer periphery of the alignment component 4. The belt 200 passes through the transmission gap to pull the belt 200 vertically. The two conveyor rollers 5 rotate relative to each other to pull the belt 200 located between them vertically downwards. This serves two purposes: firstly, it pulls the belt 200; secondly, the belt 200 passing between them can be adjusted to be level, facilitating subsequent cutting, docking with the carton 100, and packaging.

[0062] It should be noted that the cutting component 6 is located below the two conveying rollers 5. The pull belt 200 transmitted from the upper conveying roller 5 has been corrected by the correction component 4, so the pull belt 200 cut by the cutting component 6 corresponds to the strip box 100.

[0063] 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. A pull tape deviation correction device, characterized by, A strip box (100) is conveyed in a horizontal direction, comprising: a rack (1); a guide roller (2) which is arranged on the rack (1) in an axial horizontal direction and rotates in a direction perpendicular to the conveying direction of the strip box (100); a lifting adjusting assembly (3) arranged on the rack (1); a deviation correcting assembly (4) arranged at a lifting end of the lifting adjusting assembly (3), a pull belt (200) being wound around an outer periphery of the guide roller (2) and the deviation correcting assembly (4) in a horizontal or downwardly inclined manner, the lifting adjusting assembly (3) being configured to adjust the lifting of the deviation correcting assembly (4) to adjust the angle of the pull belt (200) wound around the guide roller (2) and the deviation correcting assembly (4).

2. The pull tape deviation correction device of claim 1, wherein, The lifting adjusting assembly (3) comprises two adjusting lead screws (31) arranged in a vertical direction, two ends of the adjusting lead screws (31) being rotatably connected to the rack (1), and the deviation correcting assembly (4) being threadedly connected to the adjusting lead screws (31).

3. The pull tape deviation correction device of claim 2, wherein, One or both ends of the adjusting lead screws (31) are provided with an adjusting handle (32).

4. The pull tape deviation correction device of claim 3, wherein, The deviation correcting assembly (4) comprises: two internally threaded sleeves (41) threadedly connected to the circumferential sides of the two adjusting lead screws (31) in a one-to-one correspondence; a connecting rod (42) arranged in a horizontal direction, two ends of the connecting rod (42) being arranged on the circumferential sides of the two internally threaded sleeves (41).

5. The pull tape deviation correction device of claim 4, wherein, The deviation correcting assembly (4) further comprises an adjusting roller (43) rotatably sleeved on the circumferential side of the connecting rod (42), and the pull belt (200) is wound around the circumferential side of the adjusting roller (43).

6. The pull tape deviation correction device of claim 4, wherein, The internally threaded sleeve (41) is further provided with a fastener for limiting the lifting adjustment of the internally threaded sleeve (41).

7. The pull tape deviation correction device of claim 6, wherein, The circumferential side of the internally threaded sleeve (41) is provided with a threaded hole in communication with the inner cavity thereof, and the fastener comprises a locking screw (44) threadedly connected to the threaded hole, and the end of the locking screw (44) is movably abutted against the adjusting lead screw (31).

8. The pull tape deviation correction device of any of claims 1-7, wherein, The pull belt deviation correcting device further comprises two conveying rollers (5) arranged in a horizontal direction and parallel to each other, and the pull belt (200) is arranged in the conveying gap to pull the pull belt (200) to convey in a vertical direction.

9. The pull tape deviation correction device of claim 8, wherein, The pull belt deviation correcting device further comprises a cutting assembly (6) located below the two conveying rollers (5) for cutting the pull belt (200).

10. The pull tape deviation correction device of any of claims 1-7, wherein, The rack (1) comprises a bottom plate (11) and an upper guide plate (12) located above the bottom plate (11), and the strip box (100) is conveyed between the bottom plate (11) and the upper guide plate (12).

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