Quick-heating electric heating corrugated roller

Abstract

The utility model provides a quick-heating electric heating corrugated roller, which belongs to the technical field of corrugated roller structures and comprises a hollow outer roller shell, a plurality of electric heating wires are mounted on the inner side of the outer roller shell, a wiring end cover is mounted on the outer roller shell and provided with a binding post, and the space in the binding post is divided into a first alternating cavity, a common cavity and a second alternating cavity. A first contact ring, a third contact ring and a second contact ring are fixedly installed in the first alternating cavity, the common cavity and the second alternating cavity respectively, an electric heating wire is connected to the first contact ring, the third contact ring or the second contact ring respectively, the electric heating wire is installed on the inner side of the outer roller shell through a fixed aluminum core, and the outer roller shell is heated through the electric heating wire. Condensed water is not formed in the heating process, so that the problems caused by the condensed water can be avoided; besides, the electric heating wire is arranged on the inner side of the outer roller shell, namely, the electric heating wire is arranged on the periphery of the whole corrugated roller, so that the heat transfer distance is reduced, the heat loss in the transfer process is reduced, and more energy is saved.

Description

Technical Field

[0001] The utility model belongs to the structural technology of corrugated rollers, in particular to a fast-heating electric-heated corrugated roller. Background Art

[0002] The corrugating roller is the most important component of the corrugated board production equipment. When printing corrugated boxes, high-temperature steam is usually injected into the inside of the corrugating roller to increase the surface temperature of the corrugating roller. However, after the heat of the injected steam is absorbed by the corrugating roller, the steam will condense into water droplets and gather at the bottom of the corrugating roller. In order to prevent the collected water from lowering the temperature of the corrugating roller, a siphon is usually used to extract the water from the outside of the corrugating roller. However, the siphon cannot contact the corrugating roller, which makes it impossible for the water between the corrugating roller and the siphon to be discharged. The water continuously forms a water film on the inner wall of the corrugating roller, which affects the heat absorption of the corrugating roller, making it difficult to increase the temperature of the corrugating roller, and the printing effect becomes worse. In turn, the corrugating roller needs to reduce its speed to ensure the printing effect, and the production efficiency is reduced. Utility Model Content

[0003] Based on the above problems in the prior art, the utility model provides a fast heating electric heating corrugated roller, which includes a hollow outer roller shell, a plurality of electric heating wires are installed on the inner side of the outer roller shell, a terminal cover is rotatably installed on one end of the outer roller shell, and a terminal post is arranged at the other end of the terminal cover relative to the outer roller shell, and two separation rings are arranged in sequence along the axial direction in the terminal post, and the inner diameter of the separation ring away from the outer roller shell is larger than that of the other separation ring, and the two separation rings divide the space in the terminal post into a first rotation cavity, a common cavity and a second rotation cavity in sequence, and the first rotation cavity The first contact ring, the third contact ring and the second contact ring are fixedly installed in the common cavity and the second rotation cavity respectively, the first contact ring, the third contact ring and the second contact ring all include a conductive base, a plurality of through holes are arranged on the conductive base, and an elastic pressure plate for pressing the wire toward the conductive base is arranged above each through hole of the conductive base, and a locking structure for pressing the elastic pressure plate and the wire onto the conductive base is also axially slidably installed in the terminal, and the electric heating wire is directly or through a wire connected to the first contact ring, the third contact ring or the second contact ring.

[0004] Among them, the locking structure includes three layers of truncated cone-shaped clamping blocks and clamping covers, the diameter of each layer of the clamping blocks matches the diameter of the corresponding contact ring, and each layer of the clamping blocks is provided with a clamping step for compressing the elastic pressure plate on the side close to the contact ring, the height of the clamping step is equal to the thickness of the elastic pressure plate, and an axial hole is provided in the middle of the clamping block; the clamping cover is provided with an adjusting shaft that slidably cooperates with the axial hole, the adjusting shaft passes through the clamping block, and the part of the adjusting shaft that passes through the clamping block is provided with a thread, and the terminal cover is provided with a threaded hole that is threadedly connected to the adjusting shaft, and the rotation of the clamping cover can drive the clamping block to approach the terminal cover through the cooperation of the adjusting shaft and the threaded hole.

[0005] Among them, one end of the outer roller shell is provided with a transmission connecting shaft for installation on the single-sided machine, and the other end of the outer roller shell is an installation opening. A fixed aluminum core is rotatably inserted and installed in the outer roller shell through the installation opening, and the outer surface of the fixed aluminum core is provided with a plurality of groups of heating wire grooves. The electric heating wire is fixedly installed in the heating wire grooves, and the outer surface of the fixed aluminum core and the inner surface of the outer roller shell are clearance-matched, and the outer surface of the outer roller shell is fixedly provided with a tungsten carbide protective layer.

[0006] Among them, one end of the fixed aluminum core inserted into the outer roller shell is the insertion end, and the other end is the exposed end; the heating wire grooves are grouped into two, and the two heating wire grooves in the group extend parallel to each other from the exposed end to the end of the insertion end and are connected to each other at the end of the insertion end. A continuous electric heating wire is installed in each group of heating wire grooves, the end diameter of the exposed end of the fixed aluminum core is smaller than the other end and forms an installation step, and the inner surface of the fixed aluminum core is coated with an insulation layer.

[0007] Among them, the terminal cover is fixedly installed on the installation step of the fixed aluminum core, and a bead groove is provided on the circumferential side of the terminal cover, and a plurality of sliding balls are slidably installed in the bead groove, and a connecting ring is installed on the terminal cover for rotation through the sliding balls, and a bead groove that slides with the sliding balls is provided on the inner side of the connecting ring, and the terminal cover, the plurality of sliding balls and the connecting ring cooperate to form a bearing structure, and a thread is provided on the circumferential side of one end of the connecting ring close to the outer roller shell and is connected to the inner side of the outer roller shell through the thread, and a concave and convex rotating pattern is provided on the circumferential side of the other end of the connecting ring relative to the outer roller shell.

[0008] Wherein, a check bolt is arranged on the connecting ring, and the check bolt passes through the connecting ring and is fixedly connected to the outer roller shell.

[0009] Among them, one end of the heating wire is electrically connected to the third contact ring, the other end of half of the heating wire is electrically connected to the first contact ring, and the other end of the other half of the heating wire is electrically connected to the first contact ring, and the heating wires connected to the first contact ring and the second contact ring are arranged at intervals.

[0010] The utility model has the beneficial effects:

[0011] 1. An electric heating wire is installed on the inner side of the outer roller shell through a fixed aluminum core. The outer roller shell is heated by the electric heating wire. No condensed water is formed during the heating process, which can avoid problems caused by condensed water. In addition, the electric heating wire is arranged on the inner side of the outer roller shell, which is equivalent to being arranged around the entire corrugated roller, which reduces the heat transfer distance, reduces the heat loss during the transfer process, and is more energy-efficient.

[0012] 2. Through the cooperation of the first contact ring, the third contact ring, the second contact ring and the locking structure, the electric heating wire can be quickly connected to the mounting column, making it more convenient and quick to install and replace the electric heating wire, and providing a better user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The invention is a three-dimensional structural schematic diagram of a fast-heating electric heating corrugated roller.

[0014] Figure 2 It is a three-dimensional structural schematic diagram of a fast heating electric heating corrugated roller from another angle.

[0015] Figure 3 yes Figure 2 Enlarged view of point A.

[0016] Figure 4 The cross-sectional structure diagram of a rapid heating electric heating corrugating roller.

[0017] Figure 5 yes Figure 4 Enlarged view of point B.

[0018] Figure 6 It is an exploded structural diagram of a fast heating electric heating corrugating roller.

[0019] Figure 7 yes Figure 6 Enlarged view of point C.

[0020] Figure 8 It is a schematic diagram of the exploded structure at the terminal cover.

[0021] Fig. 9 This is a schematic diagram of the exploded structure at another angle of the terminal cover.

[0022] Fig.10 It is a schematic diagram of the explosion structure of the clamping block, the first contact ring, the third contact ring and the second contact ring.

[0023] Fig.11 It is a three-dimensional structural schematic diagram of a rapid heating electric heating corrugating roller, with the outer roller shell hidden.

[0024] Fig.12 yes Fig.11 Enlarged view of point D. DETAILED DESCRIPTION

[0025] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] As attached Figure 1-12A fast heating electric corrugated roller is shown, which includes a hollow outer roller shell 2 and a fixed aluminum core 1. One end of the outer roller shell 2 is provided with a transmission connecting shaft 3 for installation on a single-sided machine. The transmission connecting shaft 3 is a round shaft and a rectangular bayonet is provided on both sides of the round shaft. The kinetic energy is transmitted through the rectangular bayonet. The other end of the outer roller shell 2 is an installation opening. The fixed aluminum core 1 is inserted into the outer roller shell 2 through the installation opening. The outer surface of the outer roller shell 2 is fixedly provided with a tungsten carbide protective layer 4 to improve the wear resistance of the outer roller shell 2. One end of the fixed aluminum core 1 inserted into the outer roller shell 2 is the insertion end, and the other end is the exposed end; the outer surface of the fixed aluminum core 1 is provided with sixteen groups of heating wire grooves 5, each group of heating wire grooves 5 contains two heating wire grooves 5, the two heating wire grooves 5 in the same group extend parallel to each other from the exposed end to the end of the insertion end and are connected to each other at the end of the insertion end, and a continuous electric heating wire is installed in each group of heating wire grooves 5, which is not shown in the drawings, so that the electric heating wire forms a U-shaped structure with both ends at the exposed end, the end diameter of the exposed end of the fixed aluminum core 1 is smaller than the other end and forms an installation step 6, and the inner surface of the fixed aluminum core 1 is coated with a thermal insulation layer 7, which can prevent heat from being transferred to the inside of the corrugated roller, so that the heat can be fully utilized.A terminal cover 8 is fixedly installed on the installation step 6 of the fixed aluminum core 1, and a bead groove 9 is provided on the peripheral side of the terminal cover 8. A plurality of sliding balls 10 are slidably installed in the bead groove 9. A connecting ring 11 is rotatably installed on the terminal cover 8 through the sliding balls 10. The inner side of the connecting ring 11 is provided with a bead groove 9 that slides with the sliding balls 10. The terminal cover 8, the plurality of sliding balls 10 and the connecting ring 11 cooperate to form a bearing structure. The connecting ring 11 is provided with a thread on the peripheral side of one end of the outer roller shell 2 and is connected to the inner side of the outer roller shell 2 through the thread, so that the outer roller shell 2 can be relatively rotatably connected to the fixed aluminum core 1 through the bearing structure, and the outer surface of the fixed aluminum core and the inner surface of the outer roller shell 2 are clearance-matched, and the connecting ring 11 is relatively A concave-convex rotating pattern 12 is arranged on the circumference of the other end of the outer roller shell 2; a terminal cover 8 is provided with a terminal post 13 at the other end relative to the outer roller shell 2, and two separation rings 14 are arranged in sequence along the axial direction in the terminal post 13, and the inner circle diameter of the separation ring 14 far away from the outer roller shell 2 is larger than the other separation ring 14, and the two separation rings 14 divide the space in the terminal post 13 into a first rotation cavity 13a closest to the outer roller shell 2, a common cavity 13b and a second rotation cavity 13c far away from the outer roller shell 2 in sequence, and a first contact ring 15, a third contact ring 17 and a second contact ring 18 are fixedly installed in the first rotation cavity 13a, the common cavity 13b and the second rotation cavity 13c respectively, and the first contact ring 1 5. The third contact ring 17 and the second contact ring 18 are respectively connected to an external power supply, the first contact ring 15 and the second contact ring 18 are respectively connected to the same electrode, and the third contact ring 17 is connected to another electrode. The first contact ring 15, the third contact ring 17 and the second contact ring 18 all include a conductive substrate 19, and the side wall of the conductive substrate 19 is evenly distributed along the circumference. There are eight through holes 20 on the first contact ring 15 and the second contact ring 18, and sixteen through holes 20 on the third contact ring 17. The terminal 13 is provided with a circular hole at a position corresponding to the through hole 20 and overlapping and communicating with the through hole 20, and the conductive substrate 19 is above each through hole 20. Both are provided with elastic pressure plates 21 for pressing the wires toward the conductive base 19, that is, eight elastic pressure plates 21 are provided on the first contact ring 15 and the second contact ring 18, and sixteen elastic pressure plates 21 are provided on the third contact ring 17. A locking structure for pressing the elastic pressure plate 21 and the wires onto the conductive base 19 is also installed axially in the terminal 13, and one end of the heating wire is electrically connected to the third contact ring 17 through a wire, the other end of half of the heating wire is electrically connected to the first contact ring 15 through a wire, and the other end of the other half of the heating wire is electrically connected to the first contact ring 15 through a wire, and the heating wires connected to the first contact ring 15 and the second contact ring 18 are arranged at intervals.The locking structure includes three layers of truncated cone-shaped pressing blocks 22 and pressing covers 23. The diameter of each layer of the pressing blocks 22 matches the diameter of the corresponding contact ring, so that each layer of the pressing blocks 22 can press the corresponding elastic pressing plate 21 onto the conductive substrate 19. A pressing step 24 for pressing the elastic pressing plate 21 is provided on one side of each layer of the pressing blocks 22 that is close to the contact ring. The height of the pressing step 24 is equal to the thickness of the elastic pressing plate 21, so that the pressing step 24 can press the elastic pressing plate 21 and the wire at the same time. An axial hole is provided in the middle of the pressing block 22; the pressing cover 23 is provided with a sliding match with the axial hole. The adjusting shaft 25 passes through the clamping block 22, and the part of the adjusting shaft 25 that passes through the clamping block 22 is provided with a thread, and the part of the adjusting shaft 25 inside the clamping block 22 is an optical axis, and the terminal cover 8 is provided with a threaded hole that is threadedly connected to the adjusting shaft 25, and the surrounding side of the clamping cover 23 is provided with a surrounding edge 26 that can cover the terminal 13, and the clamping cover 23 is provided with a fixed connecting shaft 27 on the other side relative to the adjusting shaft 25, and the clamping cover 23 can be rotated by the fixed connecting shaft 27, and the rotation of the clamping cover 23 can drive the clamping block 22 to approach the terminal cover 8 through the cooperation of the adjusting shaft 25 and the threaded hole.

[0027] As a preferred embodiment, overlapping positioning bolt holes are provided on the ends of the connecting ring 11 and the outer roller shell 2 , and a check bolt 16 is installed in the positioning bolt hole. The check bolt 16 passes through the connecting ring 11 and is fixedly connected to the outer roller shell 2 .

[0028] When assembling the corrugated roller provided in this embodiment, the electric heating wire is first bent into a U shape, and then the two ends of the electric heating wire are respectively passed through the terminal cover 8 from one side of the fixed aluminum core 1 to the other side, and then the electric heating wire is pressed to be embedded in the heating wire groove 5, and finally the two ends of the electric heating wire are respectively connected to the first contact ring 15, the third contact ring 17 and the second contact ring 18 through wires to connect the electric heating wire to the power supply. When connecting the electric heating wire to the contact ring, first rotate and loosen the clamping cover 23 so that the clamping cover 23 no longer presses the clamping block 22. At this time, the wire connected to the electric heating wire (the end of the wire is pre-scratched of the outer insulating layer) can be inserted into the corresponding contact ring through hole 20, and the wire is continued to be inserted and the elastic pressing plate 21 is lifted by the wire. The deformation recovery force of the elastic pressing plate 21 will temporarily press the wire to the conductive substrate 19, so that the wire and the conductive substrate 19 are connected. When all the wires are inserted and temporarily fixed to the corresponding contact rings by the elastic pressure plate 21, the pressure cover 23 is rotated and tightened again, and the pressure block 22 is driven by the pressure cover 23 to fix the elastic pressure plate 21 and the wires to the base of the conductive substrate 19 to complete the connection. After the sixteen electric heating wires are installed in the corresponding set of heating wire grooves 5 in sequence, the fixed aluminum core 1 is inserted into the outer roller shell 2, and the connecting ring 11 is rotated through the concave and convex rotation pattern 12 of the connecting ring 11, and the fixed aluminum core 1 is installed into the outer roller shell 2 by the connecting ring 11 and the non-return bolt 16 is installed to complete the assembly.

[0029] When in use, the transmission connecting shaft 3 is connected to the driving structure, and the outer roller shell 2 is driven to rotate by the driving structure. At the same time, the terminal cover 8 is connected to the power supply through the wire. After the power switch is turned on, the outer roller shell 2 can be heated by the electric heating wire. At startup, all the electric heating wires can be controlled to be used simultaneously for rapid heating through an external controller. After reaching the specified temperature, half of the electric heating wires can be turned off, and only half of the electric heating wires are used for heating. After a period of use, the other half of the electric heating wires are replaced for heating, so that two groups of electric heating wires can be used in rotation, which can increase the service life.

[0030] The above-mentioned embodiment only expresses one implementation method of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A fast heating electric heating corrugated roller, characterized in that: The invention comprises a hollow outer roller shell (2), a plurality of electric heating wires are installed on the inner side of the outer roller shell (2), a terminal cover (8) is rotatably installed on one end of the outer roller shell (2), a terminal post (13) is arranged at the other end of the terminal cover (8) relative to the outer roller shell (2), two separation rings (14) are arranged in sequence along the axial direction in the terminal post (13), and the inner diameter of the separation ring (14) far away from the outer roller shell (2) is larger than that of the other separation ring (14), and the two separation rings (14) divide the space in the terminal post (13) into a first rotation cavity (13a), a common cavity (13b) and a second rotation cavity (13c) in sequence, and the first rotation cavity (13a), the common cavity (13b) and the second rotation cavity (13c) are respectively fixed A first contact ring (15), a third contact ring (17) and a second contact ring (18) are fixedly installed. The first contact ring (15), the third contact ring (17) and the second contact ring (18) all include a conductive base (19). The conductive base (19) is provided with a plurality of through holes (20). The conductive base (19) is provided with an elastic pressure plate (21) above each through hole (20) for pressing the wire toward the conductive base (19). A locking structure for pressing the elastic pressure plate (21) and the wire onto the conductive base (19) is also axially slidably installed in the terminal (13). The electric heating wire is directly connected to the first contact ring (15), the third contact ring (17) or the second contact ring (18) or through a wire.

2. A fast heating electric heating corrugating roller according to claim 1, characterized in that: The locking structure comprises three layers of truncated cone-shaped pressing blocks (22) and pressing covers (23), the diameter of each layer of the pressing blocks (22) matches the diameter of the corresponding contact ring, and each layer of the pressing blocks (22) is provided with a pressing step (24) for pressing the elastic pressing plate (21) on one side close to the contact ring, the height of the pressing step (24) is equal to the thickness of the elastic pressing plate (21), and an axial hole is provided in the middle of the pressing block (22); an adjusting shaft (25) slidably matched with the axial hole is provided on the pressing cover (23), the adjusting shaft (25) passes through the pressing block (22), and a thread is provided on the part of the adjusting shaft (25) passing through the pressing block (22); a threaded hole threadedly connected to the adjusting shaft (25) is provided on the terminal cover (8), and the rotation of the pressing cover (23) can drive the pressing block (22) to approach the terminal cover (8) through the cooperation of the adjusting shaft (25) and the threaded hole.

3. A fast heating electric heating corrugating roller according to claim 2, characterized in that: One end of the outer roller shell (2) is provided with a transmission connection shaft (3) for installation on the single-sided machine, and the other end of the outer roller shell (2) is a mounting opening. A fixed aluminum core (1) is rotatably inserted and installed in the outer roller shell (2) through the mounting opening. The outer surface of the fixed aluminum core (1) is provided with a plurality of groups of heating wire grooves (5). The electric heating wire is fixedly installed in the heating wire grooves (5). The outer surface of the fixed aluminum core (1) and the inner surface of the outer roller shell (2) are clearance-matched. The outer surface of the outer roller shell (2) is fixedly provided with a tungsten carbide protective layer (4).

4. A fast heating electric heating corrugating roller according to claim 3, characterized in that: One end of the fixed aluminum core (1) inserted into the outer roller shell (2) is the insertion end, and the other end is the exposed end; the heating wire grooves (5) are grouped in two, and the two heating wire grooves (5) in the group extend parallel to each other from the exposed end to the end of the insertion end and are connected to each other at the end of the insertion end. A continuous electric heating wire is installed in each group of heating wire grooves (5), the diameter of the exposed end of the fixed aluminum core (1) is smaller than the other end and forms an installation step (6), and the inner surface of the fixed aluminum core (1) is coated with a thermal insulation layer (7).

5. A fast heating electric heating corrugating roller according to claim 4, characterized in that: The terminal cover (8) is fixedly mounted on the mounting step (6) of the fixed aluminum core (1), a bead groove (9) is arranged on the peripheral side of the terminal cover (8), a plurality of sliding beads (10) are slidably mounted in the bead groove (9), a connecting ring (11) is rotatably mounted on the terminal cover (8) through the sliding beads (10), a bead groove (9) is arranged on the inner side of the connecting ring (11) and is slidably matched with the sliding beads (10), the terminal cover (8), the plurality of sliding beads (10) and the connecting ring (11) cooperate to form a bearing structure, a thread is arranged on the peripheral side of one end of the connecting ring (11) close to the outer roller shell (2) and is connected to the inner side of the outer roller shell (2) through the thread, and a concave-convex rotation pattern (12) is arranged on the peripheral side of the other end of the connecting ring (11) relative to the outer roller shell (2).

6. A fast heating electric heating corrugating roller according to claim 5, characterized in that: The connection ring (11) is provided with a non-return bolt (16), which passes through the connection ring (11) and is fixedly connected to the outer roller shell (2).

7. A fast heating electric heating corrugating roller according to claim 6, characterized in that: One end of the heating wire is electrically connected to the third contact ring (17), the other end of half of the heating wire is electrically connected to the first contact ring (15), and the other end of the other half of the heating wire is electrically connected to the first contact ring (15), and the heating wires connected to the first contact ring (15) and the second contact ring (18) are arranged at intervals.

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