Diameter-increasing sleeve with jaw and coiling machine

Abstract

The diameter-increasing sleeve is used for being arranged outside a winding drum of the coiling machine in a sleeving mode and comprises a plurality of fan-shaped plates and a hooping mechanism, and the fan-shaped plates are connected through the hooping mechanism to form a complete diameter-adjustable circular sleeve; the fan-shaped plates are divided into a first fan-shaped plate, a second fan-shaped plate with a pushing part and a third fan-shaped plate with a jaw, the jaw of the third fan-shaped plate is provided with a strip head clamping mechanism, the strip head clamping mechanism is used for clamping a strip head of strip steel in the jaw, and the second fan-shaped plate and the third fan-shaped plate are adjacently connected; the pushing part of the second fan-shaped plate is relatively matched with the jaw of the third fan-shaped plate, and the pushing part of the second fan-shaped plate is used for pushing the strip head clamping mechanism to move so as to loosen the strip head of the strip steel in the jaw. According to the invention, the replacement speed of strip steel with different coil diameters is higher, the economic cost is lower, meanwhile, the strip head can be prevented from being increased, and coil unloading and coil loading of the next working procedure are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of coilers, and in particular to a diameter increasing sleeve with jaws and a coiler. Background Art

[0002] At present, in the continuous production and processing lines of strip steel in the metallurgical industry, there are coilers for coiling the processed strip steel into a coil. According to the material properties of the strip steel, for strip steel exceeding a certain thickness, the coiler drum with jaws is generally used to assist in coiling the strip steel. However, due to process requirements, sometimes the inner diameter of the strip steel to be coiled by the coiler is not a fixed value. If two coilers are set up, it is obviously not cost-effective. The original diameter-increasing sleeve itself does not have a jaw, and the jaws of the coiler itself need to be used. This will inevitably cause the strip head (commonly known as the strip tongue) to become longer after the sleeve is added, which is not conducive to unloading the coil, especially not conducive to coiling in the next process. Summary of the invention

[0003] The present invention aims to provide a diameter increasing sleeve with a jaw to solve the above-mentioned technical problems.

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is: a diameter-increasing sleeve with a jaw, which is used to be sleeved on the outside of the reel of a coiler, including multiple fan-shaped plates and a clamping mechanism. The multiple fan-shaped plates are connected by the clamping mechanism to form a complete circular sleeve with adjustable diameter. The fan-shaped plates are divided into a first fan-shaped plate, a second fan-shaped plate with a pushing portion and a third fan-shaped plate with a jaw. A strip head clamping mechanism is installed at the jaw of the third fan-shaped plate. The strip head clamping mechanism is used to clamp the strip head of the strip in the jaw. The second fan-shaped plate and the third fan-shaped plate are adjacently connected and arranged so that the pushing portion of the second fan-shaped plate is relatively matched with the jaw of the third fan-shaped plate, and the pushing portion of the second fan-shaped plate is used to push the strip head clamping mechanism to move to loosen the strip head of the strip in the jaw.

[0005] Preferably, the strip head clamping mechanism includes a first elastic member, a guide rod and a clamping block. The guide rod is fixedly installed at the jaws, the clamping block is slidably arranged at one end of the guide rod, the first elastic member is installed on the guide rod, and the first elastic member is used to drive the clamping block to move in a radially outward direction to clamp the strip head in the jaws.

[0006] Preferably, the jaws include a clamping groove and a receiving groove which are interconnected, the guide rod is installed in the receiving groove, and the clamping block is slidably arranged in the clamping groove.

[0007] Preferably, the first elastic member is a first spring sleeved outside the guide rod, and two ends of the first spring are respectively abutted against the bottom wall of the accommodating groove and the clamping block.

[0008] Preferably, the cross-section of the clamping block is an isosceles trapezoid, and the left and right sides of the clamping block are respectively a clamping slope and a transmission slope, the pushing portion of the second fan-shaped plate is an inclined surface, the transmission slope and the inclined surface are parallel to each other and abut against each other, the clamping slope and the side wall of the clamping groove are parallel to each other, and the first elastic member is used to drive the clamping block to move in a radially outward direction to clamp the strip head between the side wall of the clamping groove and the clamping slope.

[0009] Preferably, there are multiple first fan-shaped plates, the second fan-shaped plate and the third fan-shaped plate are one, the multiple first fan-shaped plates are connected in sequence, and the two first fan-shaped plates located at the edge are respectively connected to the second fan-shaped plate and the third fan-shaped plate.

[0010] Preferably, the clamping mechanism comprises a guide telescopic rod and a second elastic member mounted on the guide telescopic rod, the guide telescopic rod is telescopically arranged between two adjacent sector plates, and the second elastic member is used to drive the guide telescopic rod to telescope and reset.

[0011] Preferably, accommodating holes are respectively provided on both sides of the edge of the sector plate, and the two ends of the guide telescopic rod are respectively installed in two accommodating holes close to each other on two adjacent sector plates, and the second elastic member is a second spring, which is respectively correspondingly sleeved on the guide telescopic rods in the two accommodating holes.

[0012] Preferably, a diameter expansion limiter is provided at the end of the guide telescopic rod, one end of the accommodating hole extends radially inward to form a limit step, and the two ends of the second spring respectively abut against the diameter expansion limiter and the limit step of the guide telescopic rod.

[0013] The present invention discloses a coiling machine, comprising any one of the above-mentioned diameter increasing sleeves with jaws and a coiling drum, wherein the diameter increasing sleeve is sleeved outside the coiling drum.

[0014] The present invention has the following beneficial effects:

[0015] (1) The present invention can realize the winding of strip steels with different coil diameters without setting up multiple coilers, and makes the replacement speed of strip steels with different coil diameters faster and the economic cost lower. At the same time, it can avoid the growth of the strip head, and facilitate the unloading of the coil and the winding of the next process.

[0016] (2) The cross-section of the clamping block is an isosceles trapezoid, and the left and right sides of the clamping block are a clamping inclined surface and a transmission inclined surface respectively. The pushing portion of the second fan-shaped plate is an inclined surface, and the transmission inclined surface and the inclined surface are parallel to each other and abut against each other. The clamping inclined surface and the side wall of the clamping groove are parallel to each other. The first spring is used to drive the clamping block to move radially outward to clamp the strip head between the side wall of the clamping groove and the clamping inclined surface, so that the biting effect of the strip head is more stable and reliable, and the loosening process can also be smooth to avoid jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 4 is a cross-sectional view of an increasing diameter sleeve with jaws according to an embodiment of the present invention.

[0018] Figure 2 It is a schematic diagram of an increasing diameter sleeve with a jaw in an embodiment of the present invention in an expanded diameter state.

[0019] Figure 3 It is a schematic diagram of a diameter increasing sleeve with a jaw in a diameter reducing state according to an embodiment of the present invention.

[0020] The accompanying drawings are marked: 1 the first fan-shaped plate, 2 the second fan-shaped plate, 3 the third fan-shaped plate, 4 the pushing part, 5 the jaws, 51 the clamping groove, 511 the groove side wall, 52 the accommodating groove, 6 the head clamping mechanism, 61 the first elastic member, 62 the guide rod, 63 the clamping block, 631 the clamping inclined surface, 632 the transmission inclined surface, 7 the tightening mechanism, 71 the guide telescopic rod, 72 the second elastic member, 8 the accommodating hole, 9 the expansion limit member, 10 the limit step. DETAILED DESCRIPTION

[0021] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0022] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1-3As shown, as an embodiment of the present invention, a diameter increasing sleeve with a jaw is provided, which is used to be sleeved outside the reel of a coiler, including a plurality of fan-shaped plates and a clamping mechanism 7. The plurality of fan-shaped plates are connected by the clamping mechanism 7 to form a complete circular sleeve with adjustable diameter. The fan-shaped plates are divided into a first fan-shaped plate 1, a second fan-shaped plate 2 with a pushing portion 4 and a third fan-shaped plate 3 with a jaw 5. A strip head clamping mechanism 6 is installed at the jaw 5 of the third fan-shaped plate 3. The strip head clamping mechanism 6 is used to clamp the strip head of the strip in the jaw 5. The second fan-shaped plate 2 and the third fan-shaped plate 3 are adjacently connected and arranged so that the pushing portion 4 of the second fan-shaped plate 2 and the jaw 5 of the third fan-shaped plate 3 are relatively matched. The pushing portion 4 of the second fan-shaped plate 2 is used to push the strip head clamping mechanism 6 to move to loosen the strip head in the jaw 5.

[0025] The diameter increasing sleeve with the jaws 5 of the present invention is not powered, and the expansion and contraction of the winding drum is expanded and contracted by the expansion and contraction hydraulic cylinder of the coiler, thereby completing the expansion and contraction of the diameter increasing sleeve and the bite and tension of the jaws 5. When the coiler needs to coil a strip with a small inner diameter, the diameter increasing sleeve can be omitted, and the strip with a small inner diameter can be directly rolled outside the winding drum of the coiler. When the coiler needs to coil a strip with a large inner diameter, the diameter increasing sleeve is sleeved outside the winding drum of the coiler, and the head of the strip with a large inner diameter is bitten and fixed by the jaws 5 of the diameter increasing sleeve, so that the strip is rolled outside the diameter increasing sleeve, completing the winding function of the coiler. This setting can realize the winding of strips with different coil diameters without setting up multiple coilers, and makes the replacement speed of strips with different coil diameters faster and the economic cost lower. At the same time, it can avoid the growth of the head, which is convenient for unloading and winding in the next process.

[0026] In this embodiment, the strip head clamping mechanism 6 includes a first elastic member 61, a guide rod 62 and a clamping block 63. The guide rod 62 is fixedly installed at the jaw 5, and the clamping block 63 is slidably arranged at one end of the guide rod 62. The first elastic member 61 is installed on the guide rod 62. The first elastic member 61 is used to drive the clamping block 63 to move in the radial outward direction to clamp the strip head in the jaw 5; specifically, the jaw 5 includes a clamping groove 51 and a receiving groove 52 that are interconnected. The guide rod 62 is installed in the receiving groove 52, and the clamping block 63 is slidably arranged in the clamping groove 51. The first elastic member 61 is a first spring sleeved outside the guide rod 62, and the two ends of the first spring are respectively connected to the receiving groove The bottom wall of the groove 52 and the clamping block 63 are abutted against each other; the cross-section of the clamping block 63 is an isosceles trapezoid, and the left and right sides of the clamping block 63 are respectively a clamping slope 631 and a transmission slope 632, the pushing portion 4 of the second sector plate 2 is an inclined surface, the transmission slope 632 and the inclined surface are parallel to each other and abut against each other, the clamping slope 631 and the groove side wall 511 of the clamping groove 51 are parallel to each other, and the first spring is used to drive the clamping block 63 to move in a radially outward direction to clamp the strip head between the groove side wall 511 of the clamping groove 51 and the clamping slope 631. This arrangement makes the biting effect of the strip head more stable and reliable, and the loosening process can also be smooth to avoid jamming. That is, when the winding drum of the coiler expands in diameter, the diameter-increasing sleeve is also expanded, so that the inclined surface of the second sector plate 2 and the clamping groove 51 of the third sector plate 3 move away from each other, so that the clamping block 63 is driven to move radially outward on the guide rod 62 under the elastic force of the first spring, so that the gap between the groove side wall 511 of the clamping groove 51 and the clamping inclined surface 631 gradually decreases, and then the strip head of the strip is clamped between the groove side wall 511 of the clamping groove 51 and the clamping inclined surface 631. When the reel of the coiler shrinks in diameter, the diameter-increasing sleeve is also reduced, so that the inclined surface of the second sector plate 2 and the clamping groove 51 of the third sector plate 3 approach each other, and the inclined surface of the second sector plate 2 pushes the clamping block 63 to move radially inward on the guide rod 62 (the first spring is in a compressed state at this time), thereby gradually increasing the gap between the groove side wall 511 of the clamping groove 51 and the clamping inclined surface 631, thereby loosening and releasing the strip head in the jaw 5.

[0027] In this embodiment, there are multiple first fan-shaped plates 1, and the second fan-shaped plate 2 and the third fan-shaped plate 3 are one. The multiple first fan-shaped plates 1 are connected in sequence, and the two first fan-shaped plates 1 located at the edge are respectively connected to the second fan-shaped plate 2 and the third fan-shaped plate 3 through the clamping mechanism 7. Of course, it is also possible to have only one first fan-shaped plate 1, which can be adjusted according to actual needs and is not limited here.

[0028] In this embodiment, the clamping mechanism 7 includes a guide telescopic rod 71 and a second elastic member 72 installed on the guide telescopic rod 71. The guide telescopic rod 71 is telescopically arranged between two adjacent sector plates. The second elastic member 72 is used to drive the guide telescopic rod 71 to telescope and reset. Specifically, the edges of the sector plates are respectively provided with accommodating holes 8. The two ends of the guide telescopic rod 71 are respectively installed in two accommodating holes 8 close to each other on two adjacent sector plates. The second elastic member 72 is a second spring. The second spring is respectively correspondingly sleeved on the guide telescopic rod 71 in the two accommodating holes 8. The end of the guide telescopic rod 71 is provided with a diameter expansion limiter 9. One end of the accommodating hole 8 extends radially inward to form a limit step 10. The two ends of the second spring are respectively abutted against the diameter expansion limiter 9 and the limit step 10 of the guide telescopic rod 71. This arrangement makes the movement accuracy of each sector plate higher and more balanced and stable when the diameter increasing sleeve is expanding and contracting.

[0029] The present invention also provides a coiler, comprising a diameter increasing sleeve with a jaw 5 and a coiler as described in the above embodiment, the diameter increasing sleeve being sleeved on the outside of the coiler. This arrangement can realize the winding of strip steels with different coil diameters without setting up multiple coilers, and makes the replacement speed of strip steels with different coil diameters faster and with lower economic cost. At the same time, it can avoid the growth of the strip head, making it convenient to unload the coil and roll it up for the next process.

[0030] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes in form and details made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims will fall within the scope of protection of the present invention.

Claims

1. A diameter increasing sleeve with jaws, used for sleeved outside the reel of a coiler, characterized in that: It includes multiple fan-shaped plates and a clamping mechanism. The multiple fan-shaped plates are connected by the clamping mechanism to form a complete circular sleeve with adjustable diameter. The fan-shaped plates are divided into a first fan-shaped plate, a second fan-shaped plate with a pushing portion and a third fan-shaped plate with a jaw. A head clamping mechanism is installed at the jaw of the third fan-shaped plate. The head clamping mechanism is used to clamp the head of the strip in the jaw. The second fan-shaped plate and the third fan-shaped plate are adjacently connected and arranged so that the pushing portion of the second fan-shaped plate is relatively matched with the jaw of the third fan-shaped plate. The pushing portion of the second fan-shaped plate is used to push the head clamping mechanism to move to loosen the head of the strip in the jaw.

2. The diameter increasing sleeve with jaws according to claim 1, characterized in that: The strip head clamping mechanism includes a first elastic member, a guide rod and a clamping block. The guide rod is fixedly installed at the jaws, the clamping block is slidably arranged at one end of the guide rod, the first elastic member is installed on the guide rod, and the first elastic member is used to drive the clamping block to move in a radially outward direction to clamp the strip head in the jaws.

3. The diameter increasing sleeve with jaws according to claim 2, characterized in that: The jaws comprise a clamping groove and a receiving groove which are communicated with each other, the guide rod is arranged in the receiving groove, and the clamping block is slidably arranged in the clamping groove.

4. The diameter increasing sleeve with jaws according to claim 3, characterized in that: The first elastic member is a first spring sleeved outside the guide rod, and two ends of the first spring are respectively abutted against the bottom wall of the accommodating groove and the clamping block.

5. The diameter increasing sleeve with jaws according to claim 2, characterized in that: The cross-section of the clamping block is an isosceles trapezoid, and the left and right sides of the clamping block are respectively a clamping slope and a transmission slope, the pushing portion of the second sector plate is an inclined surface, the transmission slope and the inclined surface are parallel to each other and abut against each other, the clamping slope and the side wall of the clamping groove are parallel to each other, and the first elastic member is used to drive the clamping block to move in a radially outward direction to clamp the strip head between the side wall of the clamping groove and the clamping slope.

6. The diameter increasing sleeve with jaws according to claim 1, characterized in that: There are multiple first fan-shaped plates, the second fan-shaped plate and the third fan-shaped plate are one, the multiple first fan-shaped plates are connected in sequence, and the two first fan-shaped plates located at the edge are respectively connected to the second fan-shaped plate and the third fan-shaped plate.

7. The diameter increasing sleeve with jaws according to claim 1, characterized in that: The clamping mechanism comprises a guide telescopic rod and a second elastic member installed on the guide telescopic rod. The guide telescopic rod is telescopically arranged between two adjacent sector plates. The second elastic member is used to drive the guide telescopic rod to telescope and reset.

8. The diameter increasing sleeve with jaws according to claim 7, characterized in that: Accommodation holes are respectively arranged on both sides of the edge of the sector plate, and the two ends of the guide telescopic rod are respectively installed in two adjacent accommodating holes on two adjacent sector plates. The second elastic member is a second spring, and the second spring is respectively correspondingly sleeved on the guide telescopic rods in the two accommodating holes.

9. The diameter increasing sleeve with jaws according to claim 8, characterized in that: The end of the guide telescopic rod is provided with a diameter expansion limiter, one end of the accommodating hole extends radially inward to form a limit step, and the two ends of the second spring respectively abut against the diameter expansion limiter and the limit step of the guide telescopic rod.

10. A coiler, characterized in that: It comprises a diameter increasing sleeve with jaws and a reel as described in any one of claims 1 to 9, wherein the diameter increasing sleeve is sleeved outside the reel.

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