Material direction adjusting device and rewinding machine

Abstract

The utility model provides a material direction adjusting device and a rewinding machine. The material direction adjusting device comprises a rotatable clamping mechanism. The clamping mechanism comprises a material clamping position, the material clamping position is provided with an opening for materials to stretch out for induction, and the orientation of the opening can be changed after the clamping mechanism rotates; the material direction adjusting device further comprises a material direction sensor, and the material direction sensor is a linear sensor. The linear sensing area of the material direction sensor is opposite to the opening, and on the projection of the orientation of the opening, the linear sensing area of the material direction sensor passes through the non-central area of the material clamping position. The rewinding machine comprises the material direction adjusting device. On the basis of an existing clamping mechanism, only one linear sensor needs to be additionally arranged, the position of the linear sensor is reasonably arranged, and therefore the direction of materials can be detected and adjusted, the manufacturing cost is reduced, noise is reduced, product damage is avoided, the reject ratio of products is reduced, and production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automation equipment, in particular to a material direction adjusting device and a rewinder for adjusting the direction of a material by using a special-shaped part at the end of the material. Background Art

[0002] Since the contours at both ends of the reel are different. Specifically, one axial end of the reel is provided with a mating tooth section for assembly, and the outer diameter of the mating tooth section is smaller than the outer diameter of the base of the rewinding reel. The diameter difference between the tooth section and the base makes them connected in a stepped shape. Therefore, when performing the rewinding work of the printing consumable carbon ribbon, it is necessary to first adjust the direction of the reel correctly and then wind it on the reel, otherwise the subsequent assembly process cannot be completed. The existing method for adjusting the direction of the reel is to adjust it through a vibrating disk, or to adjust it through a rotating clamping mechanism after visual recognition.

[0003] The method of using a vibrating disk has high noise, occupies a large area and is easy to damage the product; the vision system has a high cost and low efficiency. Content of the Utility Model

[0004] The first object of the utility model is to provide a material direction adjusting device, which reduces the manufacturing cost and noise, avoids product damage, reduces the product defect rate and improves the production efficiency.

[0005] The second object of the utility model is to provide a rewinder that can efficiently complete the material direction adjustment.

[0006] The material direction adjusting device provided by the first object of the utility model includes a rotatable clamping mechanism; the clamping mechanism includes a material clamping position, and the material clamping position is provided with an opening for the material to extend out for induction. After the clamping mechanism rotates, the orientation of the opening can be changed; the material direction adjusting device further includes a material direction sensor, and the material direction sensor adopts a linear sensor; the linear sensing area of the material direction sensor is opposite to the opening, and on the projection of the orientation of the opening, the linear sensing area of the material direction sensor passes through the non-central area of the material clamping position.

[0007] A further solution is that the material includes a base and a special-shaped part whose outer contour is different from that of the base, and the material clamping position is used for clamping the base; when the special-shaped part is close to the material direction sensor relative to the base, the special-shaped part is outside the linear sensing area; when the special-shaped part is away from the material direction sensor relative to the base, the base is inside the linear sensing area.

[0008] As can be seen from the above solution, the present utility model mainly completes the detection by using the contour difference between the base part and the special-shaped part of the material. Specifically, the outer contour of the special-shaped part is retracted relative to the outer contour of the base part. In this way, in the direction where the base part and the special-shaped part are oppositely arranged, there is a dimensional difference at the relative two ends of the material. Thus, when using a linear inductor in the non-central area of the material clamping position to sense the material, if the material is clamped in the first orientation, the base part of the material is closer to the linear inductor, and because the outer contour of the base part is larger, it falls within the linear sensing range of the linear inductor; if the material is clamped in the second orientation, the special-shaped part of the material is closer to the linear inductor, and because the outer contour of the base part is smaller, it fails to fall within the linear sensing range of the linear inductor. Thus, finally, the system can determine whether it is necessary to adjust the direction of the material in the future based on the signal difference obtained by the linear inductor, and send a control signal to the rotatable clamping mechanism for adjustment. It can be seen that on the basis of the previous clamping mechanism, the present utility model only needs to add a linear inductor, and by reasonably setting the position of the linear inductor, it can realize the detection and adjustment of the material direction, reduce the manufacturing cost and noise, avoid product damage, reduce the product defect rate and improve the production efficiency.

[0009] A further solution is that on the projection of the opening direction, the linear sensing area of the material direction inductor passes through the outer edge of the material clamping position.

[0010] As can be seen from the above, in this setting, the linear sensing area of the material direction inductor is closer to the edge of the material, and even if the contour difference between the special-shaped part and the base part is small, the sensing detection can be accurately completed.

[0011] A still further solution is that the material direction adjustment device further includes a translation mechanism for driving the clamping mechanism to translate between the induction detection station and the rotation adjustment station; the material direction inductor is arranged at the induction detection station, and when the clamping mechanism is at the induction detection station, the linear sensing area of the material direction inductor faces the opening.

[0012] As can be seen from the above, after the direction detection is completed at the induction detection station, the material is transferred to the rotation adjustment station, rotated and adjusted by the clamping mechanism, and then loaded. This setting further realizes the automatic processing of the material direction detection and adjustment.

[0013] An even further solution is that the material direction adjustment device further includes a position-in-place inductor arranged at the induction detection station. On the projection of the opening direction, the sensing area of the position-in-place inductor passes through the central area of the material clamping position; when the clamping mechanism is at the induction detection station, the material clamped in the material clamping position is within the sensing range of the position-in-place inductor.

[0014] As can be seen from the above, when the material is transported to the induction detection station by the translation mechanism, since the induction area of the in-place inductor passes through the central area of the material clamping position, no matter what the orientation of the material is at this time, it can enter the induction area of the in-place inductor. Based on this signal, the system starts to perform direction detection. This setting further realizes the automatic processing of material direction detection and adjustment.

[0015] A further solution is that the in-place inductor adopts a linear inductor, the setting direction of the in-place inductor is perpendicular to the translation direction of the translation mechanism, and the setting direction of the material direction inductor is inclined to the translation direction.

[0016] As can be seen from the above, the setting direction of the in-place inductor is perpendicular to the translation direction of the translation mechanism. Even if there is a slight error in the translation distance, it can ensure that the material can enter its induction area. The purpose of setting the material direction inductor to be inclined to the translation direction is that if the material direction inductor is parallel to the translation direction, it may hinder the translation. If the material direction inductor is perpendicular to the translation direction, since the linear induction area of the material direction inductor may be very close to the edge of the material, when the above error occurs, it may cause the base to not be able to enter the linear induction area either, affecting the detection result. This setting can ensure that the automatic processing of direction detection and adjustment is completed more accurately and effectively, reducing the misdetection rate and improving the efficiency.

[0017] Another further solution is that the clamping mechanism includes a fixed clamp and a movable clamp. The fixed clamp and the movable clamp are respectively arranged on opposite sides of the material clamping position. The movable clamp is movable relative to the fixed clamp and changes the distance from the fixed clamp. The clamping mechanism also includes an elastic member arranged between the fixed clamp and the movable clamp. Under the action of the elastic force of the elastic member, the movable clamp tends to approach the fixed clamp.

[0018] A further solution is that the fixed clamp is provided with a sliding hole, the movable clamp is provided with a sliding rod, and the sliding rod is matched with the sliding hole along the direction of relative movement between the fixed clamp and the movable clamp. A blocking portion is arranged on the sliding rod, the elastic member is a spring, the spring is sleeved on the sliding rod, and the opposite ends of the spring respectively abut against the blocking portion and the fixed clamp.

[0019] As can be seen from the above, under this setting, the elastic force of the elastic member can be used to clamp the material, which can protect the material and at the same time reduce the setting of the power source.

[0020] A further solution is that the material direction adjustment device further includes a driving unit arranged at the induction detection station; the output end of the driving unit can abut against the sliding rod and force the movable clamp to move away from the fixed clamp.

[0021] As can be seen from the above, under this setting, the system only needs to control the driving unit to work, and then it can open the clamping mechanism and place the material. This setting completes the tightening and loosening of the clamping mechanism through a simple structure, reducing the equipment cost.

[0022] The rewinder provided by the second object of the present utility model includes a material direction adjustment device, and the material direction adjustment device adopts the above-mentioned material direction adjustment device. Brief Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the material to be adjusted.

[0024] Figure 2 It is a structural diagram of the first perspective of the first embodiment of the material direction adjustment device of the present utility model.

[0025] Figure 3 It is a structural diagram of the second perspective of the first embodiment of the material direction adjustment device of the present utility model.

[0026] Figure 4 It is a schematic diagram of the inductor group of the first embodiment of the material direction adjustment device of the present utility model.

[0027] Figure 5 It is a schematic diagram of the first induction state of the first embodiment of the material direction adjustment device of the present utility model.

[0028] Figure 6 It is a schematic diagram of the second induction state of the first embodiment of the material direction adjustment device of the present utility model.

[0029] Figure 7 It is a schematic diagram of the inductor group of the second embodiment of the material direction adjustment device of the present utility model.

[0030] Figure 8 It is a schematic diagram of the inductor group of the third embodiment of the material direction adjustment device of the present utility model. Detailed Description of the Embodiment

[0031] The First Embodiment of the Material Direction Adjustment Device

[0032] Refer to Figure 1 and Figure 2 In this embodiment, the material is the reel 9 in the printing consumable tape cassette. The reel 9 includes a cylindrical section 91 and a toothed section 92 arranged in sequence along its own axial direction. The cylindrical section 91 is the base of the present utility model, and the toothed section 92 is a shaped part of the outer contour of the present utility model different from the base. The outer diameter of the toothed section 92 is smaller than the outer diameter of the cylindrical section 91, so that an annular and stepped concave position 920 is formed in front of the cylindrical section 91 in the axial direction on the outer periphery of the toothed section 92.

[0033] Refer to Figure 2 and Figure 3 The rewinder of the present utility model includes a material direction adjustment device. The material direction adjustment device includes a clamping mechanism 1, a translation mechanism 2, a driving unit 3, an induction mechanism 4, and a feeding mechanism 5.

[0034] The clamping mechanism 1 includes a fixed clamp 11, a movable clamp 12 and an elastic member 13. In this embodiment, the elastic member 13 is a compression spring. The fixed clamp 11 and the movable clamp 12 are arranged opposite to each other along the y-axis direction shown in the figure, and a material clamping position 100 for clamping the reel 9 is formed between the fixed clamp 11 and the movable clamp 12.

[0035] Wherein, arc-shaped concave positions capable of matching the outer contour of the cylindrical section 91 of the reel 9 are provided on the inner sides of the fixed clamp 11 and the movable clamp 12 facing the material clamping position 100.

[0036] The translation mechanism 2 in this embodiment uses a linear module. The translation mechanism 2 includes a sliding table 21 and a rotating module 29 installed on the sliding table 21. The rotating module 29 is a motor or a rotating cylinder, and the clamping mechanism 1 is connected to the rotating part of the rotating module 29. The sliding table 21 of the translation mechanism 2 can drive the clamping mechanism 1 to translate between the induction detection station 901 and the rotation adjustment station 902 along the y-axis direction shown in the figure.

[0037] The rotating module 29 can drive the clamping mechanism 1 to rotate around the z-axis. When the clamping mechanism 1 rotates, the direction of the reel 9 in the material clamping position 100 can be adjusted. At the same time, the opening direction of the material clamping position 100 of the clamping mechanism 1 will be changed. In this embodiment, when the clamping mechanism 1 rotates 180 degrees, the axial ends of the reel 9 can be swapped. Among them, the rotation adjustment of the clamping mechanism 1 is carried out at the rotation adjustment station 902.

[0038] Continue to refer to Figure 3 , the fixed clamp 11 is provided with a sliding hole, and the movable clamp 12 is provided with a sliding rod 121. The sliding rod 121 is inserted and slidably matched with the sliding hole along the y-axis direction, so that the movable clamp 12 can move relative to the fixed clamp 11 along the y-axis direction and change the distance between itself and the fixed clamp 11; further, a blocking portion 122 in the shape of a stop ring is provided at the extending end of the sliding rod 121, and the elastic member 13 is sleeved on the sliding rod 121, and the opposite ends of the elastic member 13 respectively abut against the blocking portion 122 and the fixed clamp 11. In this way, under the action of the elastic member 13, the movable clamp 12 and the fixed clamp 11 tend to approach each other, and the elastic force of the elastic member 13 can clamp the reel 9.

[0039] When the sliding rod 121 is subjected to an external force, it can slide and move the movable clamp 12 in a direction away from the fixed clamp 11, thereby loosening the reel 9. In order to realize automatic clamping and loosening, the present invention is provided with a driving unit 3. The driving unit 3 is selected as a cylinder. The driving unit 3 is arranged along the y-axis direction at the induction detection station 901. The output end 31 of the driving unit 3 is the end of the telescopic rod of the cylinder. As Figure 3 shown, the output end 31 of the driving unit 3 can abut against the end of the sliding rod 121, push the sliding rod 121 and force the movable clamp 12 to move in a direction away from the fixed clamp 1 to loosen the clamp.

[0040] Among them, the formed material clamping position 100 penetrates along the x-axis direction shown in the figure, and is provided with an opening 101 facing the positive x-axis direction ( Figure 5 as shown), and this opening 101 is used for the reel 9 to extend out for induction.

[0041] Among them, the material clamping position of the present utility model is defined by the outer contour of the base of the material to be placed, and the outer contour of the material to be placed serves as the outer contour of the material clamping position. It should be noted that the inner contour of the material does not serve as the regional boundary of the material clamping position, and the area within the above outer contour is the area of the material clamping position.

[0042] Specifically, taking this embodiment as an example, the outer contour line of the material clamping position 100 is consistent with the outer contour line of the cylindrical section 91 of the reel 9 to be placed. In the projection of the setting direction of the opening of the material clamping position 100, the outer peripheral contour of the material clamping position 100 is consistent with the outer peripheral contour of the cylindrical section 91 of the reel 9 and is circular. The material clamping position 100 includes the circular area within this circular outer contour. This area is Figure 4 shown by the cross-hatching in the figure, and this area includes the central area 108 and the non-central area 109 below.

[0043] However, the cylindrical section 91 of the reel 9 in this embodiment is actually in a cylindrical shape and has a circular inner contour, but this circular inner contour line does not serve as the regional boundary of the material clamping position.

[0044] The induction mechanism 4 includes a mounting base 40 and a material direction sensor 41 and a position-in-place sensor 42 mounted on the mounting base 40. In this embodiment, both the material direction sensor 41 and the position-in-place sensor 42 adopt linear sensors, and the linear sensors such as infrared sensors and laser sensors.

[0045] Combined with Figure 4 , the mounting base 40 is fixed on the induction detection station 901. In this embodiment, the position-in-place sensor 42 is arranged downward and the material direction sensor 41 is arranged obliquely downward. Among them, the setting direction of the position-in-place sensor 42 is the z-axis direction, and the setting direction of the material direction sensor 41 forms an acute angle with the y-axis direction. The above setting direction specifically refers to the orientation of the sensor or the linear direction of the linear sensor.

[0046] When the clamping mechanism 1 is at the induction detection station 901, the linear induction region 410 of the material direction sensor 41 and the induction region 420 of the in-place sensor 42 are both opposite to the opening of the material clamping position 100 along the x-axis direction, that is, the linear induction region 410 of the material direction sensor 41 and the induction region 420 of the in-place sensor 42 are both located on one side of the opening of the material clamping position 100, detecting the reel 9 extending out of the material clamping position 100, and generating different induction signals according to the different extending ends of the reel 9, and then judging the direction of the reel 9 based on this.

[0047] Figure 4 On the projection of the orientation (x-axis direction) of the opening of the shown material clamping position 100, the induction region 420 of the in-place sensor 42 passes through the central region 108 of the material clamping position 100, and the linear induction region 410 of the material direction sensor 41 passes through the non-central region 109 of the material clamping position 100. The central region 108 and the non-central region 109 are respectively shown with different hatching lines in Figure 4 In this embodiment, the central region 108 is the central and adjacent regions of the material clamping position 100, and the non-central region 109 is an annular region from outside the central region 108 to within the outer contour line of the material clamping position 100. Specifically, the outer contour line of the special-shaped part of the material to be detected can be used as the dividing line between the central region 108 and the non-central region 109.

[0048] When the material comes in, the system first controls the drive unit 3 to force the clamping to be released. After the reel 9 is placed, the drive unit 3 retracts, and the reel 9 is clamped by the clamping mechanism 1 under the action of the elastic member 13. Subsequently, the direction induction detection of the reel 9 is carried out.

[0049] Combined with Figure 5 and Figure 6 , the material clamping position 100 clamps the cylindrical section 91 of the reel 9. Since the direction of the incoming reel 9 is uncertain, when the cylindrical section 91 is clamped, a part of the reel 9 extends from the opening 410 to the side of the induction mechanism 4. The extended part may be the tooth section 92 or the end of the cylindrical section 91.

[0050] As Figure 5 shown, when the above-mentioned extended part is the tooth section 92, at this time the tooth section 92 is closer to the material direction sensor 41 relative to the cylindrical section 91, and the tooth section 92 is outside the linear induction region 410 and passes through from the concave position 920 on the outer circumference of the tooth section 92; as Figure 6 shown, when the above-mentioned extended part is the end of the cylindrical section 91, at this time the tooth section 92 is away from the material direction sensor 41 relative to the cylindrical section 91, and the end of the cylindrical section 91 is within the linear induction region 410. The system can judge through different signals obtained by the direction sensor 41 to determine whether it is necessary to adjust the direction of the reel 9.

[0051] Subsequently, the translation mechanism 2 operates to transfer the reel 9 from the induction detection station 901 to the rotation adjustment station 902. Then, according to the above judgment result, if direction adjustment is required, the clamping mechanism 1 is controlled to rotate and then the feeding mechanism 5 is controlled to feed; if direction adjustment is not required, the feeding mechanism 5 is directly controlled to feed the reel 9 in the current posture.

[0052] Second Embodiment of the Material Direction Adjustment Device

[0053] See Figure 7 , in this embodiment, the setting direction of the material direction sensor 61 is perpendicular to the translation direction.

[0054] Third Embodiment of the Material Direction Adjustment Device

[0055] See Figure 4 , in the first embodiment, the linear induction area 410 of the material direction sensor 41 passes through the outer edge of the non - central area 109, and the outer edge is the position far from the central area 108.

[0056] See Figure 8 , while in this embodiment, on the projection of the opening direction of the material clamping position, the linear induction area 710 of the material direction sensor 71 passes through the inner edge of the non - central area 930 that is closer to the central area.

[0057] In other embodiments, the translation mechanism is not included and / or the drive unit is not provided. For example, for the part of the clamping mechanism that is a manipulator, the material direction sensor is installed on the manipulator. After grasping the material, the direction detection and adjustment of the material can be completed during the transportation process of the manipulator.

[0058] In other embodiments, the movable clamp can be directly driven by a cylinder or a motor.

Claims

1. Material direction adjustment device, including a rotatable clamping mechanism; Features: The clamping mechanism comprises a material clamping position, the material clamping position is provided with an opening for the material to extend out for sensing, and the direction of the opening can be changed after the clamping mechanism is rotated; The material direction adjustment device further comprises a material direction sensor, and the material direction sensor adopts a linear sensor; The linear sensing area of ​​the material direction sensor is opposite to the opening, and in the projection of the direction of the opening, the linear sensing area of ​​the material direction sensor passes through the non-central area of ​​the material clamping position.

2. The material direction adjustment device according to claim 1, characterized in that: The material comprises a base and a special-shaped portion whose outer contour is different from that of the base, and the material clamping position is used to clamp the base; When the irregularly shaped portion is close to the material direction sensor relative to the base portion, the irregularly shaped portion is located outside the linear sensing area; When the shaped portion is away from the material direction sensor relative to the base, the base is located within the linear sensing area.

3. The material direction adjustment device according to claim 1, characterized in that: On the projection of the orientation of the opening, the linear sensing area of ​​the material direction sensor passes through the outer edge of the material clamping position.

4. The material direction adjustment device according to any one of claims 1 to 3, characterized in that: The material direction adjustment device also includes a translation mechanism for driving the clamping mechanism to translate between the induction detection station and the rotation adjustment station; The material direction sensor is arranged at the sensing detection station. When the clamping mechanism is at the sensing detection station, the linear sensing area of ​​the material direction sensor is opposite to the opening.

5. The material direction adjustment device according to claim 4, characterized in that: The material direction adjustment device further comprises an in-place sensor arranged at the induction detection station, and in the projection of the orientation of the opening, the sensing area of ​​the in-place sensor passes through the central area of ​​the material clamping position; When the clamping mechanism is in the induction detection position, the material clamped in the material clamping position is in the sensing range of the in-place sensor.

6. The material direction adjustment device according to claim 5, characterized in that: The in-position sensor is a linear sensor, the setting direction of the in-position sensor is perpendicular to the translation direction of the translation mechanism, and the setting direction of the material direction sensor is inclined to the translation direction.

7. The material direction adjustment device according to claim 4, characterized in that: The clamping mechanism comprises a fixed clamp and a movable clamp, wherein the fixed clamp and the movable clamp are respectively arranged on opposite sides of the material clamping position, and the movable clamp is movable relative to the fixed clamp and changes the distance between the movable clamp and the fixed clamp; The clamping mechanism further comprises an elastic member arranged between the fixed clamp and the movable clamp, and the movable clamp and the fixed clamp are brought closer together under the action of the elastic member.

8. The material direction adjustment device according to claim 7, characterized in that: The fixed clamp is provided with a sliding hole, and the movable clamp is provided with a sliding rod, and the sliding rod cooperates with the sliding hole along the direction of relative movement between the fixed clamp and the movable clamp; The slide bar is provided with a blocking portion, the elastic member is a spring, the spring is sleeved on the slide bar, and opposite ends of the spring are respectively in contact with the blocking portion and the fixing clip.

9. The material direction adjustment device according to claim 8, characterized in that: The material direction adjustment device further includes a driving unit disposed at the induction detection station; The output end of the driving unit can abut against the sliding rod and force the movable clamp to move in a direction away from the fixed clamp.

10. A rewinding machine, including a material direction adjustment device, characterized in that: The material direction adjustment device adopts the material direction adjustment device described in any one of claims 1 to 9 above.

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