Automatic unwinding and feeding device

Abstract

The utility model discloses an automatic unwinding and feeding device, and relates to the technical field of sealing rubber strip production, in particular to the automatic unwinding and feeding device which comprises a base, a vertical plate is fixedly connected to the top of the base, a telescopic cylinder is fixedly installed in the vertical plate, and a lifting table is fixedly connected to the bottom of an output shaft of the telescopic cylinder. A supporting plate is fixedly connected to the front face of the vertical plate, and a sliding plate is clamped to the top of the supporting plate. According to the automatic unwinding and feeding device, by arranging the lifting table, when a winding drum is installed, the winding drum is rolled to the lifting table, then the telescopic cylinder drives the lifting table to move upwards, when the lifting table is flush with the supporting plate, the winding drum is rolled to the sliding plate, then the sliding plate is pushed to move backwards, and the winding drum is installed on the rotating shaft, so that manual carrying is not needed; and the operation is more labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing strip production, in particular to an automatic unwinding and feeding device. Background Art

[0002] Sealing strips are made of rubber and used for product sealing. They are mainly used in the fields of automobiles, machinery, doors and windows, etc. Existing sealing strips are generally produced by extrusion using an extruder. After extrusion, the sealing strips need to be processed by gluing, surface coating, surface flocking, etc. to enhance the performance of the sealing strips.

[0003] When the sealing strip is subjected to treatments such as gluing, surface coating, and surface flocking, the sealing strip needs to be unrolled and fed.

[0004] Patent publication number CN205114601U proposes a rubber strip unwinding mechanism, including a support frame, an unwinding structure and a guide structure. The support frame is a box structure, including an outlet, and a positioning adjustment structure is arranged at the lower part of the support frame. The unwinding structure is equipped with a rubber disc and is fixedly arranged in the box body of the support frame. The guide structure is fixedly arranged on the support frame, corresponding to the outlet and the unwinding structure, and guides the rubber strip in the rubber disc to be drawn out from the outlet. This structure has the following shortcomings in actual use: First, when installing, it is necessary to manually lift the reel with the rubber strip wound on the rotating shaft. Since the reel full of rubber strips is heavy, it is very laborious to manually lift and install the reel, and the operation is not convenient enough; second, when pulling out the rubber strip, due to the different pulling forces on the rubber strip, the rubber strip will produce different tensions. This structure needs to rotate the adjusting nut to adjust the tension of the rubber strip unwinding, which is very inconvenient. For this reason, we provide an automatic unwinding and feeding device. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an automatic unwinding and feeding device, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: an automatic unwinding and feeding device, including a base, a vertical plate fixedly connected to the top of the base, a telescopic cylinder fixedly installed inside the vertical plate, a lifting platform fixedly connected to the bottom of the telescopic cylinder output shaft, a support plate fixedly connected to the front of the vertical plate, a sliding plate clamped on the top of the support plate, an unwinding motor fixedly installed on the back of the base, a rotating shaft connected to the output shaft of the unwinding motor, and the rotating shaft is located on the top of the sliding plate.

[0007] Optionally, the front end of the lifting platform is sloped, and the lifting platform is flush with the support plate when it moves to the top.

[0008] Optionally, the outside of the rotating shaft is fixedly connected to a limit strip, the front end of the rotating shaft is threadedly sleeved with a limit bolt, the outside of the rotating shaft is movably sleeved with a reel, and the limit strip is clamped inside the reel.

[0009] Optionally, a tension sensor is movably mounted on the front of the base, a drive motor is installed on the back of the vertical plate, the output shaft of the drive motor is coaxially arranged with the tension sensor, and an adjusting wheel is movably mounted on the output shaft of the drive motor via a support rod.

[0010] Optionally, a guide wheel 1 and a guide wheel 2 are movably sleeved on the front of the vertical plate, the guide wheel 1 and the guide wheel 2 are vertically placed, and a tension adjustment mechanism is provided between the guide wheel 1 and the guide wheel 2.

[0011] Optionally, the tension adjustment mechanism includes an outer sleeve fixed to the front side of the vertical plate, the inner part of the outer sleeve is movably sleeved with a piston rod, the inner end of the piston rod is equipped with a compression spring, and the end of the piston rod away from the outer sleeve is movably sleeved with an adjusting wheel 2.

[0012] Optionally, the front movable sleeve of the vertical plate is provided with straightening wheels, and the number of the straightening wheels is four and they are divided into two rows, and the straightening wheels in the upper and lower rows are distributed alternately.

[0013] The utility model provides an automatic unwinding and feeding device, which has the following beneficial effects:

[0014] 1. The automatic unwinding and feeding device is equipped with a lifting platform. When installing the reel, the reel is rolled onto the lifting platform, and then the telescopic cylinder drives the lifting platform to move upward. When the lifting platform is flush with the support plate, the reel is rolled onto the sliding plate, and then the sliding plate is pushed backward to install the reel on the rotating shaft. No manual handling is required, and the operation is more labor-saving.

[0015] 2. The automatic unwinding and feeding device detects the tension of the rubber strip through a tension sensor, and then drives the motor to drive the adjusting wheel to swing up and down around the tension sensor, which can automatically adjust the tension of the rubber strip. The operation is more convenient. By setting a tension adjustment mechanism, when the tension of the rubber strip changes, the compression spring is used to give the piston rod an outward elastic force, and the piston rod can be telescopically moved inside the outer sleeve, thereby adjusting the tension of the rubber strip to avoid damage to the rubber strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the utility model from another angle;

[0018] Figure 3It is a structural schematic diagram of the utility model when the lifting platform is raised;

[0019] Figure 4 It is a structural schematic diagram of the rotating shaft of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the tension adjustment mechanism of the utility model.

[0021] In the figure: 1. base; 2. vertical plate; 3. telescopic cylinder; 4. lifting platform; 5. support plate; 6. sliding plate; 7. unwinding motor; 8. rotating shaft; 9. limit strip; 10. limit bolt; 11. reel; 12. tension sensor; 13. driving motor; 14. adjusting wheel 1; 15. guide wheel 1; 16. tension adjusting mechanism; 161. outer sleeve; 162. piston rod; 163. compression spring; 164. adjusting wheel 2; 17. guide wheel 2; 18. straightening wheel. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1 , Figure 2 The utility model provides a technical solution: an automatic unwinding and feeding device, including a base 1, a vertical plate 2 is fixedly connected to the top of the base 1, a telescopic cylinder 3 is fixedly installed inside the vertical plate 2, and a lifting platform 4 is fixedly connected to the bottom of the output shaft of the telescopic cylinder 3. By setting the lifting platform 4, when installing the reel 11, the reel 11 is rolled onto the lifting platform 4, and then the telescopic cylinder 3 drives the lifting platform 4 to move upward, which can lift the reel 11 and save more effort. The front end of the lifting platform 4 is sloped, and the lifting platform 4 is flush with the supporting plate 5 when it moves to the top. The front side of the vertical plate 2 is fixedly connected to the supporting plate 5, and the top of the supporting plate 5 is clamped with a sliding plate 6. By setting the sliding plate 6, after the reel 11 is moved onto the sliding plate 6, the sliding plate 6 can be slid backward to install the reel 11 on the rotating shaft 8, which is convenient for the installation of the reel 11.

[0024] See also Figure 1 , Figure 2 , Figure 4A reel 11 is fixedly mounted on the back of the base 1, and a rotating shaft 8 is connected to the output shaft of the reel 11. The rotating shaft 8 is located at the top of the sliding plate 6. The reel 11 can be automatically unwound by driving the rotating shaft 8 to rotate by the reel 11. A limiting strip 9 is fixedly connected to the outside of the rotating shaft 8, and a limiting bolt 10 is threadedly sleeved on the front end of the rotating shaft 8. A reel 11 is movably sleeved on the outside of the rotating shaft 8, and the limiting strip 9 is clamped inside the reel 11. By setting the limiting bolt 10 and pressing the reel 11 with the limiting bolt 10, the reel 11 can be prevented from falling off the rotating shaft 8.

[0025] See also Figure 1 to Figure 2 A tension sensor 12 is movably mounted on the front of the base 1, and a driving motor 13 is installed on the back of the vertical plate 2. The output shaft of the driving motor 13 is coaxially arranged with the tension sensor 12, and an adjusting wheel 14 is movably mounted on the output shaft of the driving motor 13 through a support rod. The tension of the rubber strip is detected by the tension sensor 12, and then the driving motor 13 drives the adjusting wheel 14 to swing up and down around the tension sensor 12, which can automatically adjust the tension of the rubber strip, making the operation more convenient.

[0026] See also Figure 1 , Figure 5 The front of the vertical plate 2 is movably sleeved with a guide wheel 15 and a guide wheel 2 17, which are placed vertically, and a tension adjustment mechanism 16 is arranged between the guide wheel 15 and the guide wheel 2 17. The tension adjustment mechanism 16 includes an outer sleeve 161 fixed to the front of the vertical plate 2, and a piston rod 162 is movably sleeved inside the outer sleeve 161. A compression spring 163 is installed at the inner end of the piston rod 162, and an adjusting wheel 2 164 is movably sleeved at one end of the piston rod 162 away from the outer sleeve 161. By setting the tension adjustment mechanism 16, when the tension of the rubber strip changes, the compression spring 163 is used to give the piston rod 162 an outward elastic force, and the piston rod 162 can be telescopically moved inside the outer sleeve 161, thereby adjusting the tension of the rubber strip to avoid damage to the rubber strip.

[0027] See also Figure 1 The front movable set of the vertical plate 2 is provided with straightening wheels 18, and there are four straightening wheels 18, which are divided into two rows, and the straightening wheels 18 in the upper and lower rows are distributed alternately. By setting the straightening wheels 18 and using the straightening wheels 18 to straighten alternately, the bending of the unwound rubber strip can be avoided.

[0028] In summary, when the automatic unwinding and feeding device is in use, the reel 11 is rolled onto the lifting platform 4, and then the telescopic cylinder 3 drives the lifting platform 4 to move upward. When the lifting platform 4 is flush with the support plate 5, the reel 11 is rolled onto the sliding plate 6, and then the sliding plate 6 is slid to move backward, so that the reel 11 is mounted on the rotating shaft 8, and then the limit bolt 10 is tightened to fix the reel 11, and then the rubber strip is wound around the tension sensor 12, the driving motor 13, the guide wheel 15, the tension adjustment mechanism 16, the guide wheel 2 17, and the straightening wheel 18 in turn, and the tension of the rubber strip is detected by the tension sensor 12, and then the driving motor 13 drives the adjusting wheel 14 to swing around the tension sensor 12 to adjust the tension of the rubber strip, and at the same time the piston rod 162 can be telescopically moved inside the outer sleeve 161 to automatically adjust the tension of the rubber strip, and finally the rubber strip passes through the straightening wheel 18 to straighten the rubber strip.

[0029] It should be noted that the telescopic cylinder 3, unwinding motor 7 and driving motor 13 used in the present invention are all existing products, and those skilled in the art can select them according to their needs, and no special limitation is made here.

[0030] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic unwinding and feeding device, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a vertical plate (2), a telescopic cylinder (3) is fixedly installed inside the vertical plate (2), the bottom of the output shaft of the telescopic cylinder (3) is fixedly connected to a lifting platform (4), the front of the vertical plate (2) is fixedly connected to a support plate (5), the top of the support plate (5) is clamped with a sliding plate (6), and the back of the base (1) is fixedly installed with a reeling motor (7), the output shaft of the reeling motor (7) is connected to a rotating shaft (8), and the rotating shaft (8) is located at the top of the sliding plate (6).

2. The automatic unwinding and feeding device according to claim 1 is characterized in that: The front end of the lifting platform (4) is in a slope shape, and the lifting platform (4) is flush with the support plate (5) when it moves to the top.

3. The automatic unwinding and feeding device according to claim 1 is characterized in that: The outside of the rotating shaft (8) is fixedly connected to a limit strip (9), the front end of the rotating shaft (8) is threadedly sleeved with a limit bolt (10), the outside of the rotating shaft (8) is movably sleeved with a reel (11), and the limit strip (9) is clamped inside the reel (11).

4. The automatic unwinding and feeding device according to claim 1 is characterized in that: The front side of the base (1) is movably sleeved with a tension sensor (12), the back side of the vertical plate (2) is equipped with a drive motor (13), the output shaft of the drive motor (13) is coaxially arranged with the tension sensor (12), and the output shaft of the drive motor (13) is movably sleeved with an adjusting wheel (14) via a support rod.

5. The automatic unwinding and feeding device according to claim 1 is characterized in that: A guide wheel 1 (15) and a guide wheel 2 (17) are movably sleeved on the front of the vertical plate (2); the guide wheel 1 (15) and the guide wheel 2 (17) are placed vertically; and a tension adjustment mechanism (16) is provided between the guide wheel 1 (15) and the guide wheel 2 (17).

6. The automatic unwinding and feeding device according to claim 5 is characterized in that: The tension adjustment mechanism (16) comprises an outer sleeve (161) fixed on the front side of the vertical plate (2); a piston rod (162) is movably sleeved inside the outer sleeve (161); a compression spring (163) is installed on the inner end of the piston rod (162); and an adjustment wheel 2 (164) is movably sleeved on the end of the piston rod (162) away from the outer sleeve (161).

7. The automatic unwinding and feeding device according to claim 1 is characterized in that: The front side of the vertical plate (2) is movably provided with straightening wheels (18), and the number of the straightening wheels (18) is four and they are divided into two rows, the upper and lower rows of straightening wheels (18) being distributed alternately.

Images