A tape unwinding machine with active deviation correction

Abstract

The present invention relates to the technical field of winding machines, and discloses an active deviation-correcting unwinding machine, comprising a machine base b, wherein the machine base b is provided with a fixing plate, and the outside of the machine base b is connected with a guiding mechanism b. When the unwinding machine is working, a transverse movement detection device is used to detect the current position of the tape. When the release position of the tape is offset, a displacement adjustment device b sends a signal to a control mechanism, and then the displacement adjustment device b is controlled to compensate the tape roll, so that the release position of the tape is always kept in a constant state. The unwinding machine has a simple structure and high control accuracy. Similarly, the unwinding control method provided by the present invention can make the tape always keep a constant output position, thereby avoiding a large amount of contact friction between the tape and the side wall of a roller, thereby improving the molding quality of the cable.

Description

Technical Field

[0001] The invention relates to the technical field of winding machines, in particular to a tape unwinding machine with active deviation correction. Background Art

[0002] Cable usually refers to a plurality of mutually insulated conductors, which are then wrapped with an insulating protective layer by a forming machine. Common cable types include power cables, control cables, compensation cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, etc.

[0003] These multiple conductors usually need to be wrapped with tape released by a tape wrapping machine. Existing tapes include hot-melt aluminum foil tape, PP tape, etc. During the tape wrapping process, the release position of the tape is always in a changing state, which will cause the edge of the tape to easily rub against the wire wheel, resulting in burrs or burrs on the edge of the tape, and also cause creases and damage on the surface of the tape, which may lead to hidden dangers such as signal leakage in the formed cable.

[0004] In view of this, the present inventors have made improvements. Summary of the Invention

[0005] The object of the present invention is to provide a tape unwinding machine with active deviation correction to address the deficiencies of the prior art. The tape unwinding machine has the advantages of simple structure and convenient control, thereby achieving better cable forming quality.

[0006] To achieve the above-mentioned purpose, the present invention provides an active deviation-correcting tape unwinding machine, comprising a machine base b, wherein the machine base b is provided with a fixed plate, and the outside of the machine base b is connected to a guide mechanism b, and further comprising: a tape unwinding drive mechanism for installing a tape roll and unwinding the tape; a displacement adjustment device b for driving the tape roll to displace and keep the tape unwinding position constant; a lateral movement detection device for monitoring the current lateral movement position of the tape unwound from the wire roll; a tension mechanism for controlling the tension of the tape unwound; a control mechanism for receiving a signal from the lateral movement detection device and controlling the displacement adjustment device b; the tape unwound from the tape roll passes through the tension mechanism, the lateral movement detection device, the tape unwinding drive mechanism and the guide mechanism b in sequence.

[0007] Furthermore, the tape unwinding drive mechanism includes a first servo motor b and a main transmission shaft b, the main transmission shaft b is sleeved with a tape unwinding shaft for installing a tape roll, the tape unwinding shaft is provided with a fixing mechanism, the first servo motor b is connected to a first synchronous wheel, the main transmission shaft b is connected to a second synchronous wheel, and the first synchronous wheel is connected to the second synchronous wheel through a synchronous belt.

[0008] Preferably, the unwinding shaft ring is provided with a plurality of card slots, and the fixing mechanism includes a card strip and a movable fixing member b, the card strip is arranged in the card slot, and one end of the card strip is connected to the end of the card slot close to the second synchronization wheel, the other end of the card strip passes through the card slot and is provided with a fixing portion, and the inner side of the card strip is provided with a gap for elastic deformation of the card strip, and the fixing member b is provided with a wedge-shaped protrusion that can extend into the gap and abut against the fixing portion, and the fixing member b is detachably connected to the fixing portion.

[0009] Furthermore, the displacement adjustment device b includes a second servo motor b, a screw rod b, a guide rail b and a displacement seat b slidably connected to the guide rail b. The screw rod b drives the displacement seat b to slide along the guide rail b, and the second servo motor b drives the screw rod b to rotate through a synchronous belt.

[0010] Preferably, the tape unwinding drive mechanism is arranged on the displacement seat b.

[0011] Furthermore, the lateral movement detection device includes a first light sensor and a second light sensor, and a lateral movement detection area is formed between the first light sensor and the second light sensor. After the strap is released, it passes through the lateral movement detection area. The first light sensor and the second light sensor are both electrically connected to the control mechanism.

[0012] Furthermore, the guiding mechanism b includes a bracket b, the bracket b is provided with at least one belt guide roller, and the transverse movement detection device is connected to the bracket b and is located below the belt guide roller.

[0013] Preferably, the tension mechanism includes a fixed frame, the fixed frame is provided with a tension arm b, the tension arm b is connected to a tension roller, an upper limit sensor is provided above the fixed frame, and a lower limit sensor is provided below the fixed frame, and the upper limit sensor and the lower limit sensor are both electrically connected to the control mechanism.

[0014] The beneficial effects of the present invention are as follows: a tape unwinding machine with active deviation correction includes a machine base b, the machine base b is provided with a fixed plate, and the outside of the machine base b is connected to a guide mechanism b. When the tape unwinding machine is working, a transverse movement detection device is used to detect the current position of the tape. When the release position of the tape is offset, the displacement adjustment device b sends a signal to the control mechanism, and then the displacement adjustment device b is controlled to compensate the tape roll, so that the release position of the tape is always kept in a constant state. The tape unwinding machine has a simple structure and high control accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure from another perspective of the present invention.

[0017] Figure 3 It is the front view of the present invention.

[0018] Figure 4 It is a cross-sectional view of the present invention.

[0019] Figure 5 for Figure 4 A is an enlarged structural diagram of FIG.

[0020] Figure 6 It is a side view of the tension mechanism of the present invention.

[0021] Reference numerals include:

[0022] Machine base b--71, fixed plate--711, guide mechanism b--72, bracket b--721, tape guide roller--722, tape unwinding drive mechanism--73, first servo motor b--731, main transmission shaft b--732, tape unwinding shaft--733, card slot--7331, transverse movement detection device--74, first light sensor--741, second light sensor--742, tension mechanism--75, fixed frame--751, tension arm b--752, tension roller --753, upper limit sensor--754, lower limit sensor--755, fixing mechanism--76, clamping strip--761, fixing part b--762, fixing part--763, wedge-shaped protrusion--764, limit spring--765, first concave position--766, second smooth concave position--767, outer peripheral portion--768, displacement adjustment device b--77, second servo motor b--771, screw rod b--772, guide rail b--773, displacement seat b--774. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1 To the attached Figure 6 The present invention will be described in detail.

[0024] The present invention provides an active deviation-correcting tape unwinding machine, comprising a machine base b71, wherein the machine base b71 is provided with a fixed plate 711, and the outside of the machine base b71 is connected to a guide mechanism b72, and further comprising: a tape unwinding drive mechanism 73, for installing a tape roll and unwinding the tape; a displacement adjustment device b77, for driving the tape roll to displace and keep the tape unwinding position constant; a transverse movement detection device 74, for monitoring the current transverse movement position of the tape unwound from the wire roll; a tension mechanism 75, for controlling the tension of the tape unwound; a control mechanism, for receiving a signal from the transverse movement detection device 74 and controlling the displacement adjustment device b77; the tape unwound from the tape roll passes through the tension mechanism 75, the transverse movement detection device 74, the tape unwinding drive mechanism 73 and the guide mechanism b72 in sequence. The basic working principle of the above structure is: first, the operator selects a suitable tape roll and installs it on the tape unwinding drive mechanism 73, and then pulls the tape out and passes it through the tension mechanism 75, the transverse movement detection device 74, the tape unwinding drive mechanism 73 and the guide mechanism b72 in sequence. Usually, the packaging material is in a vertical unwinding state, but during operation, since the tape is wound at different positions on the reel, the tape is continuously unwound, and the tape will form a constantly changing distance (or angle) with the vertical direction. This unwinding machine uses the transverse movement detection device 74 to detect the relative position change of the tape, and the transverse movement detection device 74 sends a signal to the displacement adjustment device b77, and the displacement adjustment device b77 moves the tape roll, that is, compensates for the relative position change of the tape unwinding, thereby ensuring that the tape is always in a constant unwinding position. In this way, the tape can be prevented from contacting and rubbing with the line roller when it is offset during unwinding, and burrs or burrs on the edge of the tape, as well as creases and damage on the surface of the tape, thereby improving the forming quality of the tape.

[0025] In addition, the control mechanism of this device can adopt existing firmware and controller, etc., or it can be integrated with other devices for comprehensive control.

[0026] In this embodiment, the unwinding drive mechanism 73 includes a first servo motor b731 and a main transmission shaft b732. A unwinding shaft 733, for mounting a tape roll, is sleeved on the main transmission shaft b732. The unwinding shaft 733 is provided with a fixing mechanism 76. The first servo motor b731 is connected to a first synchronous pulley, and the main transmission shaft b732 is connected to a second synchronous pulley. The first synchronous pulley is connected to the second synchronous pulley via a synchronous belt. During operation, the tape roll is mounted on the unwinding shaft 733 and secured by the fixing mechanism 76. The first servo motor b731 then causes the main transmission shaft b732 and the unwinding shaft 733 to rotate synchronously via the two synchronous pulleys.

[0027] In order to further facilitate the rapid replacement of the tape roll, the unwinding shaft 733 is provided with a number of slots 7331, and the fixing mechanism 76 includes a strip 761 and a movable fixing member b762. The strip 761 is arranged in the slot 7331, and one end of the strip 761 is connected to the end of the slot 7331 close to the second synchronization wheel, and the other end of the strip 761 passes through the slot 7331 and is provided with a fixing portion 763. The inner side of the strip 761 is provided with a gap for elastic deformation of the strip 761, and the fixing member b762 is provided with a wedge-shaped protrusion 764 that can extend into the gap and abut the fixing portion 763. The fixing member b762 is detachably connected to the fixing portion 763. The working principle of this solution is as follows: when the fixing member b762 is not engaged with the clamping strip 761, the clamping strip 761 is retracted into the clamping slot 7331 or remains flush with the surface of the clamping slot 7331. At this time, the tape roll is inserted into the unwinding shaft 733, and the fixing member b762 is then engaged with the clamping strip 761, causing the clamping strip 761 to protrude from the clamping slot 7331, thereby forming an internal support and abutment against the inner barrel of the tape roll. With this structure, the diameter of the unwinding shaft 733 can be minimized, and the expansion and contraction of the clamping strip 761 allows the unwinding shaft 733 to secure tape rolls of different diameters. Of course, to further enhance the fixing effect of the clamping strip 761 to the tape roll, a concave-convex texture can be provided on the outer abutting surface of the clamping strip 761 to increase the friction coefficient.

[0028] As a further extension of the above solution, the fixing mechanism 76 is further provided with a limit spring 765. A first recess 766 is provided on one end of the clip 761 near the fixing portion 763. The limit spring 765 is inserted into the first recess 766 of the clip 761. The purpose of the limit spring 765 is to quickly reset the clip 761 when the fixing member b762 is removed during tape removal. Furthermore, the prolonged contact of the wedge-shaped protrusion 764 can cause the clip 761 to deform rigidly.

[0029] More preferably, the fixing portion 763 is provided with a second smooth recessed portion 767, and the fixing member b762 is provided with an outer peripheral portion 768, which abuts against the outer side of the fixing portion 763. The second smooth recessed portion 767 cooperates with the outer peripheral portion 768 of the fixing member b762 to make the structure more compact. A protrusion (not shown) corresponding to the second smooth recessed portion 767 is provided on the inner side of the outer peripheral portion 768, thereby forming a sliding buckle connection, which is safer to use.

[0030] In this technical solution, the displacement adjustment device b77 includes a second servo motor b771, a screw rod b772, a guide rail b773 and a displacement seat b774 slidingly connected to the guide rail b773. The screw rod b772 drives the displacement seat b774 to slide along the guide rail b773, and the second servo motor b771 drives the screw rod b772 to rotate through a synchronous belt.

[0031] In this technical solution, the unwinding drive mechanism 73 is mounted on the displacement seat b774. Specifically, the main transmission shaft b732 passes through the displacement seat b774, and the first servo motor b731 is fixed to the displacement seat b774, preferably fixed to the displacement seat b774. In this way, the unwinding drive mechanism 73 and the displacement seat b774 form an organic whole, facilitating transmission and displacement.

[0032] In this technical solution, the lateral movement detection device 74 includes a first light sensor 741 and a second light sensor 742. A lateral movement detection area is formed between the first light sensor 741 and the second light sensor 742. After the strap is released, it passes through the lateral movement detection area, shielding the light from the first light sensor 741 and the second light sensor 742. The first light sensor 741 and the second light sensor 742 are both electrically connected to the control mechanism. When either side of the strap deviates, the first light sensor 741 and the second light sensor form a light path.

[0033] The guide mechanism b72 includes a bracket b721, which is provided with at least one belt guide roller 722. The lateral movement detection device 74 is connected to the bracket b721 and is located below the belt guide roller 722. The number of belt guide rollers 722 can be set according to actual needs.

[0034] In this technical solution, to better adjust the wire feeding tension, the tension mechanism 75 includes a fixed frame 751, which is provided with a tension arm b752, which is connected to a tension roller 753. An upper limit sensor 754 is provided above the fixed frame 751, and a lower limit sensor 755 is provided below the fixed frame 751. Both the upper limit sensor 754 and the lower limit sensor 755 are electrically connected to a control mechanism. When the upper limit sensor 754 detects the tension arm b752, the upper limit sensor 754 sends a signal c to the control mechanism, which controls the increase of the tape payout speed. When the lower limit sensor 755 detects the tension arm b752, the lower limit sensor 755 sends a signal d to the control mechanism, which controls the decrease of the tape payout speed. This adjusts the control of the tape payout drive mechanism 73 during the payout, so that the tape payout drive mechanism 73 is always at a dynamic payout speed.

[0035] The present invention also provides a method for controlling tape unwinding of a tape unwinding machine. The tape unwinding machine is provided with a transverse shift detection device 74 for detecting the unwinding position of a tape package. The transverse shift detection device 74 is provided with a transverse shift detection area. When the edge of the tape package deviates to one side of the transverse shift detection area, the transverse shift detection device 74 sends a signal a to a control mechanism of the tape unwinding machine. The control mechanism controls a displacement adjustment device b77 to maintain the tape package at a constant unwinding position. When the edge of the tape package deviates to the other side of the transverse shift detection area, the transverse shift detection device 74 sends a signal b to the control mechanism of the tape unwinding machine. The control mechanism controls the displacement adjustment device b77 to maintain the tape package at a constant unwinding position.

[0036] Furthermore, when the upper limit sensor 754 detects the tension arm b752, the upper limit sensor 754 sends a signal c to the control mechanism, which controls the tape unwinding speed to increase; when the lower limit sensor 755 detects the tension arm b752, the lower limit sensor 755 sends a signal d to the control mechanism, which controls the tape unwinding speed to decrease.

[0037] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. An active deviation-correcting unwinding machine, comprising a machine base b, the machine base b is provided with a fixing plate, the outside of the machine base b is connected with a guide mechanism b, characterized in that: Also includes: A tape unwinding drive mechanism, used to install the tape roll and unwind the tape; The displacement adjustment device b is used to drive the tape roll to move and keep the tape release position constant; A lateral displacement detection device for monitoring the current lateral displacement position of the tape being unwound from the coil; Tension mechanism, used to control the tension of the tape release; A control mechanism receives a signal from the lateral displacement detection device and controls the displacement adjustment device b; The wrapping tape is unwound from the tape roll and passes through the tension mechanism, the lateral movement detection device, the unwinding driving mechanism and the guiding mechanism b in sequence; The unwinding drive mechanism comprises a first servo motor b and a main transmission shaft b, the main transmission shaft b is sleeved with a unwinding shaft for mounting a tape roll, the unwinding shaft is provided with a fixing mechanism, the first servo motor b is connected to a first synchronous wheel, the main transmission shaft b is connected to a second synchronous wheel, and the first synchronous wheel is connected to the second synchronous wheel through a synchronous belt; The unwinding collar is provided with a plurality of slots, the fixing mechanism comprises a clip strip and a movable fixing member b, the clip strip is arranged in the slot, one end of the clip strip is connected to the end of the slot close to the second synchronous wheel, the other end of the clip strip passes through the slot and is provided with a fixing portion, a gap is provided on the inner side of the clip strip for elastic deformation of the clip strip, the fixing member b is provided with a wedge-shaped protrusion which can extend into the gap and abut against the fixing portion, and the fixing member b is detachably connected to the fixing portion; The fixing mechanism is further provided with a limit spring, and a first concave position is provided at one end of the clamping strip close to the fixing portion, and the limit spring is inserted into the first concave position of the clamping strip; The fixing portion is provided with a second smooth concave position, and the fixing member b is provided with an outer peripheral portion, and the outer peripheral portion abuts against the outer side of the fixing portion.

2. The active deviation-correcting unwinding machine according to claim 1, characterized in that: The displacement adjustment device b comprises a second servo motor b, a screw rod b, a guide rail b and a displacement seat b slidably connected to the guide rail b. The screw rod b drives the displacement seat b to slide along the guide rail b, and the second servo motor b drives the screw rod b to rotate through a synchronous belt.

3. The active deviation-correcting unwinding machine according to claim 2, characterized in that: The tape unwinding driving mechanism is arranged on the displacement seat b.

4. The active deviation-correcting unwinding machine according to claim 1, characterized in that: The transverse movement detection device includes a first light sensor and a second light sensor. A transverse movement detection area is formed between the first light sensor and the second light sensor. The strap passes through the transverse movement detection area after being released. Both the first light sensor and the second light sensor are electrically connected to the control mechanism.

5. The active deviation-correcting unwinding machine according to claim 1, characterized in that: The guiding mechanism b comprises a bracket b, and the bracket b is provided with at least one belt guide roller. The transverse displacement detection device is connected to the bracket b and is located below the belt guide roller.

6. The active deviation-correcting unwinding machine according to claim 1, characterized in that: The tension mechanism includes a fixed frame, the fixed frame is provided with a tension arm b, the tension arm b is connected to a tension roller, an upper limit sensor is provided above the fixed frame, and a lower limit sensor is provided below the fixed frame, and both the upper limit sensor and the lower limit sensor are electrically connected to the control mechanism.

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