Energy-saving gold stamping roller mechanism and working method thereof

Abstract

The invention discloses an energy-saving gilding roller mechanism and a working method thereof.The energy-saving gilding roller mechanism comprises a gilding roller body, an electric heating rod, a sealing plug, a rotary connector and a spacing assembly, the electric heating rod is coaxially plugged into a middle cavity of the gilding roller body, and the root of the electric heating rod is sealed through the sealing plug; the extending end of the electric heating rod is connected with a power supply through the rotary joint; the spacing assembly is coaxially arranged in the middle cavity and arranged on the periphery of the electric heating rod in a sleeving mode, and the spacing assembly divides the middle cavity into an inner oil cavity and an outer oil cavity. The spacing assembly can communicate with the inner oil cavity and the outer oil cavity in the working state and can isolate the inner oil cavity from the outer oil cavity in the shutdown state. The oil cavity is divided into the inner oil cavity and the outer oil cavity, the inner oil cavity is subjected to isolation and heat preservation during power failure, heat loss is reduced, and the heat energy utilization rate is increased.

Description

Technical Field

[0001] The invention relates to the technical field of hot stamping machines, and in particular to an energy-saving hot stamping roller mechanism and a working method thereof. Background Art

[0002] The existing hot stamping plate roller heating system of the tipping paper hot stamping machine is mainly composed of oil tank, electric heating pipe, oil pump, oil pipeline, rotary joint, hot stamping plate roller, exhaust device, valve, temperature measuring element, temperature controller and contactor. Its working principle is: the hot stamping plate roller rotates at high speed, the oil tank is placed statically on one side of the hot stamping plate roller, the heat transfer oil in the oil tank is heated by the electric heating pipe, and then pressurized by the oil pump and transported to the hot stamping plate roller through the oil pipeline, and the heat transfer oil flows back to the oil tank. The hot stamping plate roller is heated and heated by the circulation of high-temperature heat transfer oil. The temperature controller controls the temperature through the temperature measuring element and heating element installed in the oil tank, so that the heat transfer oil in the oil tank reaches the set temperature and keeps it constant. The utility model patents with announcement numbers CN203093270U and CN216832805U both use this circulating oil heating method to heat the hot stamping plate roller. Although the temperature stability could be guaranteed, oil pumps, oil tanks, oil pipes, etc. were required at the time. The equipment investment cost and operating cost were high, and oil leakage was prone to occur at the pipe joints.

[0003] Recently, in order to reduce equipment costs and avoid oil leakage, some hot stamping machine manufacturers have started using hot stamping rollers with built-in heating rods. A long electric heating rod is coaxially arranged in the middle oil chamber of this hot stamping roller to heat the thermal oil. The circulating oil is no longer used for heating, and the oil tank pump and oil line joint are omitted. The structure is more compact and the failure rate is low. However, this heating form uses an electric heating rod to heat the thermal oil in the entire oil chamber. When restarting after shutdown, the heating time is long, which affects production efficiency. At the same time, because the hot stamping machine often needs to be shut down for a short time during debugging, failure or maintenance, the hot stamping roller is repeatedly powered off to cool down and then heated or kept in a warm state, which will waste electricity.

[0004] In order to overcome the above problems, an energy-saving hot stamping roller mechanism and a working method thereof are needed. Summary of the invention

[0005] The purpose of the present invention is to provide an energy-saving hot stamping roller mechanism, which divides the oil chamber into an inner oil chamber and an outer oil chamber. When the power is off, the inner oil chamber is isolated and insulated, thereby reducing heat loss and improving thermal energy utilization.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention discloses an energy-saving hot stamping roller mechanism, comprising a hot stamping roller body, an electric heating rod, a sealing plug, a rotary joint and a spacing component, wherein the electric heating rod is coaxially inserted into the middle cavity of the hot stamping roller body and the root is sealed by the sealing plug; the protruding end of the electric heating rod is connected to a power source via the rotary joint; the spacing component is coaxially arranged in the middle cavity and sleeved on the outer periphery of the electric heating rod, and the spacing component divides the middle cavity into an inner oil cavity and an outer oil cavity; the spacing component can connect the inner oil cavity and the outer oil cavity in a working state, and can isolate the inner oil cavity and the outer oil cavity in a shutdown state.

[0007] Furthermore, the spacer assembly includes a heat storage body and a sleeve member, the heat storage body is cylindrical and one end of which is tightly connected to the distal end of the electric heating rod, and the other end is pressed and fixed by the sealing plug to the insertion end of the intermediate cavity; the sleeve member is slidably sleeved on the outside of the heat storage body, and the end of the sleeve member away from the sealing plug is provided with a push rod head that seals and protrudes out of the hot stamping roller body, and pushing and pulling the push rod head can drive the sleeve member to slide axially on the heat storage body; a plurality of first oil holes are provided on the heat storage body, and a plurality of second oil holes are provided on the sleeve member, and the first oil holes and the second oil holes overlap and are connected when the push rod head is pushed up.

[0008] Furthermore, the heat storage body and the main body of the sleeve are nested cylinders, and a circumferential anti-rotation structure is also provided between the heat storage body and the sleeve.

[0009] Furthermore, the circumferential anti-rotation structure includes a slide groove and a positioning protrusion, and a plurality of the slide grooves are evenly distributed on the outer wall of the heat storage body, and the slide grooves are arranged along the length direction of the heat storage body; the positioning protrusions are arranged on the inner wall of the nesting section of the sleeve member and the number is consistent with the slide groove, and the positioning protrusions guide sliding in the slide groove.

[0010] Furthermore, it also includes a first compression spring, which is sleeved on the periphery of the root of the heat storage body, and the two ends of the first compression spring are respectively abutted against the inner end wall of the intermediate cavity and the inner end surface of the sleeve.

[0011] Furthermore, it also includes an internal temperature sensor, which can measure the temperature of the inner oil cavity, the internal temperature sensor is installed on the inner wall of the sealing plug, and the internal temperature sensor is electrically connected to the electronic control system of the hot stamping machine.

[0012] Furthermore, it also includes an oil filling plug assembly, an oil filling hole connected to the outer oil cavity is opened on the end wall of the hot stamping roller body, and the oil filling plug assembly is installed in the oil filling hole.

[0013] Furthermore, the oil filling plug assembly includes a piston plug, a second compression spring and a wire plug, the piston plug is sealingly and slidingly connected to the inner section of the oil filling hole, the outer section of the oil filling hole is set as a threaded hole with an increased diameter and is threadedly connected to the wire plug, and the second compression spring is coaxially arranged in the oil filling hole and abuts between the piston plug and the wire plug.

[0014] Furthermore, it also includes: The driving system comprises a tooth clutch, a main motor, an adjustment motor bracket, a first slide plate and an adjustment motor. The two ends of the hot stamping roller body are respectively horizontally mounted on the side wall plates of the hot stamping machine through bearing seats, and the adjustment motor bracket is fixedly connected to the outside of the side wall plate on one side; the adjustment motor is installed on the outside of the adjustment motor bracket, and the output shaft of the adjustment motor bracket is coaxially mounted with a lead screw, and the lead screw is connected with a nut slider through a transmission thread, and the nut slider is fixedly connected to the first slide plate, and the first slide plate is guided and slid on four horizontally arranged guide columns of the adjustment motor bracket; the main motor is installed on the outside of the first slide plate, and the output shaft of the main motor is mounted with one half of the tooth clutch, and the other half of the tooth clutch is correspondingly mounted on the shaft end of the hot stamping roller body; The tightening system includes a thrust bearing seat, a second slide plate, a cylinder bracket and a cylinder. The cylinder bracket is fixedly connected to the outside of the side wall panel on the other side, and the cylinder is installed on the outside of the cylinder bracket. The piston rod of the cylinder is connected inwardly to the second slide plate; the second slide plate slides on four horizontally arranged guide columns of the cylinder bracket, and the second slide plate drives the thrust bearing seat. The thrust bearing seat is sleeved on the shaft end of the hot stamping roller body close to the rotary joint; the bearing shaft section of the hot stamping roller body is slidably connected to the inner ring of the bearing seat.

[0015] The present invention also discloses a working method of an energy-saving hot stamping roller mechanism. When hot stamping operation is performed using any of the energy-saving hot stamping roller mechanisms described above, the inner oil chamber is isolated from the outer oil chamber in a shutdown state, and the inner oil chamber reduces heat dissipation, which is conducive to rapid heating when the machine is started again.

[0016] Compared with the prior art, the beneficial technical effects of the present invention are: The energy-saving hot stamping roller mechanism of the present invention introduces the heating power supply of the electric heating rod through a rotary joint, avoids the use of circulating heat-conducting oil for heating, and has a compact and reliable structure. The spacing component is arranged in the middle cavity and divides it into an inner oil cavity and an outer oil cavity. The isolated inner oil cavity and the outer oil cavity are not connected in the shutdown state, and even if the outer oil cavity dissipates heat and cools down, it does not affect the oil temperature inside the inner oil cavity; when it is switched to the working state, the electric heating rod starts to work, and the inner oil cavity and the outer oil cavity are connected, which can quickly heat up and improve production efficiency.

[0017] In addition, by opening holes on the mutually nested heat storage body and sleeve part, the overlap and stagger of the two openings are achieved during the axial movement of the sleeve part, thereby achieving the connection and isolation of the inner oil chamber and the outer oil chamber; by setting the push rod head, the axial movement of the sleeve part can be controlled outside the hot stamping roller body. By adding the first compression spring, the sleeve part can be pushed outward, so that the sleeve part seals the first oil hole on the heat storage body under normal conditions. By setting the circumferential anti-rotation structure between the heat storage body and the sleeve part, the sleeve part is prevented from circumferentially rotating relative to the heat storage body, which causes the first oil hole and the second oil hole to be unable to align after rotation, thereby reducing the oil passing effect. By cooperating with the slide groove and the positioning protrusion, the guide area between the heat storage body and the sleeve part is increased, and the wear is reduced in an oil lubrication environment. By adding an internal temperature sensor in the inner oil chamber and monitoring the oil temperature of the inner oil chamber, the oil temperature of the inner oil chamber can be prevented from overheating and accidents can be avoided. By adding the oil filling plug assembly in the oil filling hole, the oil filling channel can be closed; by using the piston plug to seal the oil filling hole, when the volume of the heat transfer oil changes, the sealing position can be adaptively adjusted to adapt, so as to avoid the compression and deformation of the hot stamping roller body. By adding the guide rod, the piston plug can be auxiliary guided for axial displacement to avoid overturning, and it is also convenient to remove the piston plug for maintenance. Through the cooperation of the drive system and the tightening system, when the hot stamping roller body is working, the cylinder is always in a state of tightening the hot stamping roller body, which can achieve axial gaplessness and avoid axial movement during the working process. At the same time, by adjusting the motor to drive the first slide plate to move horizontally back and forth, the axial calibration of the hot stamping roller body is conveniently achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the main cross-sectional structure of the energy-saving hot stamping roller mechanism of the present invention; Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the middle AA part; Figure 3 for Figure 1 A schematic diagram of the partial enlarged structure of the middle I part; Figure 4 This is a schematic diagram of the main structure of the energy-saving hot stamping roller mechanism of the present invention in the installation state; Figure 5 It is a schematic diagram of the top view of the energy-saving hot stamping roller mechanism of the present invention in the installed state.

[0020] Explanation of the reference numerals: 1. hot stamping roller body; 101. plate; 102. core shaft; 103. sealing ring; 104. oil filling hole; 2. heating rod; 3. sealing plug; 4. rotary joint; 5. heat storage body; 501. first oil hole; 502. slide groove; 6. sleeve member; 601. second oil hole; 602. positioning protrusion; 603. push rod head; 7. first compression spring; 8. inner oil chamber; 9. outer oil chamber; 10. inner temperature sensor; 11. piston plug; 12. second compression spring; 13. screw plug; 14. bearing seat; 15. side wall plate; 16. tooth clutch; 17. main motor; 18. adjusting motor bracket; 19. first slide plate; 20. adjusting motor; 21. screw; 22. nut slider; 23. thrust bearing seat; 24. second slide plate; 25. cylinder bracket; 26. cylinder. DETAILED DESCRIPTION

[0021] The core of the present invention is to provide an energy-saving hot stamping roller mechanism and a working method thereof, which divides the oil chamber into an inner oil chamber and an outer oil chamber. When the power is off, the inner oil chamber is isolated and insulated, which reduces heat loss and improves thermal energy utilization.

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 on the present invention.

[0024] With reference to the accompanying drawings, Figure 1 It is a schematic diagram of the main cross-sectional structure of the energy-saving hot stamping roller mechanism of the present invention; Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the middle AA part; Figure 3 for Figure 1 A schematic diagram of the partial enlarged structure of the middle I part; Figure 4 This is a schematic diagram of the main structure of the energy-saving hot stamping roller mechanism of the present invention in the installation state; Figure 5 It is a schematic diagram of the top view of the energy-saving hot stamping roller mechanism of the present invention in the installed state.

[0025] In a specific embodiment, Figures 1 to 5As shown, the energy-saving hot stamping roller mechanism of the present invention includes a hot stamping roller body 1, an electric heating rod 2, a sealing plug 3, a rotary joint 4 and a spacing component. The electric heating rod 2 is coaxially inserted into the middle cavity of the hot stamping roller body 1 and the root is sealed by the sealing plug 3. Specifically, the hot stamping roller body 1 is a split structure, one end of the middle cavity is open and the end is connected to the core shaft 102 by a thread. The electric heating rod 2 passes through the middle hole of the core shaft 102, and the protruding end of the electric heating rod 2 is connected to the power supply through the rotary joint 4. The spacing component is coaxially arranged in the middle cavity and sleeved on the outer periphery of the electric heating rod 2. The spacing component divides the middle cavity into an inner oil cavity 8 and an outer oil cavity 9. The spacing component can connect the inner oil cavity 8 and the outer oil cavity 9 in the working state, and can isolate the inner oil cavity 8 and the outer oil cavity 9 in the shutdown state.

[0026] The heating power supply of the electric heating rod 2 is introduced through the rotary joint 4, avoiding the use of circulating heat transfer oil for heating, and the structure is compact and reliable. The spacing component is arranged in the middle cavity and divides it into an inner oil cavity 8 and an outer oil cavity 9. The inner oil cavity 8 and the outer oil cavity 9 isolated in the shutdown state are not connected, and even if the outer oil cavity 9 dissipates heat and cools down, it does not affect the oil temperature inside the inner oil cavity 8; when it is switched to the working state, the electric heating rod 2 starts to work, and the inner oil cavity 8 and the outer oil cavity 9 are connected, which can quickly heat up and improve production efficiency.

[0027] In a specific embodiment of the present invention, Figure 1 and Figure 2 As shown, the spacing assembly includes a heat storage body 5 and a sleeve member 6. The heat storage body 5 is cylindrical and one end is sealed and connected to the distal end of the electric heating rod 2, and the other end is pressed and fixed to the insertion end of the intermediate cavity by a sealing plug 3. That is, a boss is provided at one end of the heat storage body 5, which can be pressed by the sealing plug 3 to achieve axial positioning. The sleeve member 6 is slidably sleeved on the outside of the heat storage body 5, and a push rod head 603 is provided at one end of the sleeve member 6 away from the sealing plug 3, which seals and protrudes out of the hot stamping roller body 1. Pushing and pulling the push rod head 603 can drive the sleeve member 6 to slide axially on the heat storage body 5. A plurality of first oil holes 501 are provided on the heat storage body 5, and a plurality of second oil holes 601 are provided on the sleeve member 6. When the push rod head 603 is pushed up, the first oil holes 501 and the second oil holes 601 overlap and are connected.

[0028] Specifically, if Figure 1 As shown, a sealing ring is provided in the hole section of the hot stamping roller body 1 that matches the push rod head 603 to prevent leakage from occurring there.

[0029] Specifically, if Figure 1 and Figure 2 As shown, the heat storage body 5 is made of graphite material or honeycomb ceramics, which has a large specific heat capacity and can store more thermal energy.

[0030] Specifically, if Figure 1As shown, it also includes a first compression spring 7, which is sleeved on the periphery of the root of the heat storage body 5, and the two ends of the first compression spring 7 are respectively in contact with the inner end wall of the middle cavity and the inner end surface of the sleeve member 6, so that the through holes on the heat storage body 5 and the sleeve member 6 are staggered.

[0031] By opening holes on the mutually nested heat storage body 5 and sleeve member 6, the overlap and stagger of the two openings are achieved during the axial movement of the sleeve member 6, thereby achieving the connection and isolation of the inner oil chamber 8 and the outer oil chamber 9; by setting the push rod head 603, the axial movement of the sleeve member 6 can be controlled outside the hot stamping roller body 1. By adding the first compression spring 7, the sleeve member 6 can be pushed outward, so that the sleeve member 6 seals the first oil hole 501 on the heat storage body 5 under normal conditions.

[0032] In a specific embodiment of the present invention, Figure 1 and Figure 2 As shown, the main parts of the heat storage body 5 and the sleeve member 6 are nested cylinders, and a circumferential anti-rotation structure is also provided between the heat storage body 5 and the sleeve member 6.

[0033] Specifically, if Figure 2 As shown, the circumferential anti-rotation structure includes a slide groove 502 and a positioning protrusion 602. A plurality of slide grooves 502 are evenly distributed on the outer wall of the heat storage body 5. The slide grooves 502 are arranged along the length direction of the heat storage body 5. The slide grooves 502 are arc cross-section grooves. The positioning protrusions 602 are arranged on the inner wall of the nesting section of the sleeve member 6 and the number is the same as that of the slide grooves 502. The positioning protrusions 602 are guided to slide in the slide grooves 502.

[0034] Obviously, the heat storage body 5 and the sleeve member 6 can also be in the form of a square cylinder or a regular polygonal cylinder, in which case the circumferential anti-rotation structure does not need to be provided. However, in order to facilitate production and processing, the present application prefers a cylindrical form. Similar simple replacement methods all fall within the scope of protection of the present invention.

[0035] The circumferential anti-rotation structure is provided between the heat storage body 5 and the sleeve member 6 to prevent the sleeve member 6 from circumferentially rotating relative to the heat storage body 5. After the rotation, the first oil hole 50 and the second oil hole 601 cannot be aligned, which reduces the oil flow effect. The guide area between the heat storage body 5 and the sleeve member 6 is increased by the cooperation of the slide groove 502 and the positioning protrusion 602, and the wear is reduced in the oil lubrication environment.

[0036] In a specific embodiment of the present invention, Figure 1 and Figure 3As shown, the energy-saving hot stamping roller mechanism of the present invention further includes an internal temperature sensor 10, which can measure the temperature of the internal oil chamber 8. The internal temperature sensor 10 is installed on the inner wall of the sealing plug 3 and is electrically connected to the hot stamping machine electronic control system. The signal wire of the internal temperature sensor 10 is also derived through the rotary joint 4.

[0037] In fact, under the usual temperature control method, an external temperature sensor is also provided on the outside of the hot stamping roller body 1. The external temperature sensor uses a non-contact infrared sensing sensor to measure the temperature of the annular plate 101 on the outer wall of the hot stamping roller body 1. The external temperature sensor is also electrically connected to the hot stamping machine electronic control system.

[0038] By adding an internal temperature sensor 10 in the internal oil chamber 8 to monitor the oil temperature of the internal oil chamber 8, it is possible to avoid overheating of the oil temperature in the internal oil chamber 8 and avoid accidents.

[0039] In a specific embodiment of the present invention, Figure 1 and Figure 3 As shown, the energy-saving hot stamping roller mechanism of the present invention further includes an oil filling plug assembly. An oil filling hole 104 communicating with the external oil chamber 9 is opened on the end wall of the hot stamping roller body 1 , and the oil filling plug assembly is installed in the oil filling hole 104 .

[0040] Specifically, if Figure 3 As shown, the oil filling plug assembly includes a piston plug 11, a second compression spring 12 and a screw plug 13. The piston plug 11 is sealingly and slidably connected to the inner section of the oil filling hole 104, and the outer section of the oil filling hole 104 is set as a threaded hole with a thickened diameter and is threadedly connected to the screw plug 13. The piston plug 11 can seal the heat transfer oil while being able to move axially in the inner section of the oil filling hole 104. The second compression spring 12 is coaxially arranged in the oil filling hole 104 and abuts between the piston plug 11 and the screw plug 13.

[0041] Specifically, a guide rod is coaxially arranged behind the piston plug 11 , and the guide rod passes backward through the middle holes of the second compression spring 12 and the screw plug 13 .

[0042] By adding the oil filling plug assembly in the oil filling hole 104, the oil filling channel can be closed; by using the piston plug 11 to seal the oil filling hole 104, when the volume of the heat transfer oil changes, the sealing position can be adaptively adjusted to avoid the pressure deformation of the hot stamping roller body 1. By adding the guide rod, the piston plug 11 can be auxiliary guided for axial displacement to avoid overturning, and it is also convenient to remove the piston plug 11 for maintenance.

[0043] In a specific embodiment of the present invention, Figure 4 and Figure 5 As shown, the energy-saving hot stamping roller mechanism of the present invention also includes: The driving system includes a tooth clutch 16, a main motor 17, an adjustment motor bracket 18, a first slide plate 19 and an adjustment motor 20. The two ends of the hot stamping roller body 1 are horizontally mounted on the side wall plate 15 of the hot stamping machine through the bearing seat 14, and the adjustment motor bracket 18 is installed outside the side wall plate 15 on one side by bolts. The adjustment motor bracket 18 is a four-column frame structure. The adjustment motor 20 is installed on the outside of the adjustment motor bracket 18, and the output shaft of the adjustment motor bracket 18 is coaxially installed with a lead screw 21, and the transmission thread on the lead screw 21 is connected with a nut slider 22, and the nut slider 22 is fixedly connected to the first slide plate 19. The first slide plate 19 guides and slides on the four horizontally arranged guide columns of the adjustment motor bracket 18. The main motor 17 is installed on the outside of the first slide plate 19, and the output shaft of the main motor 17 is installed with half of the tooth clutch 16, and the other half of the tooth clutch 16 is correspondingly installed on the shaft end of the hot stamping roller body 1. When the two halves of the tooth clutch 16 are combined, the main motor 17 drives the hot stamping roller body 1 to rotate. At this time, the output shaft end of the main motor 17 can push the push rod head 603.

[0044] The tightening system includes a thrust bearing seat 23, a second slide plate 24, a cylinder bracket 25 and a cylinder 26. The cylinder bracket 25 is installed on the outside of the other side wall panel 15 by bolts, and the cylinder bracket 25 is a four-column frame structure. The cylinder 26 is installed on the outside of the cylinder bracket 25, and the piston rod of the cylinder 26 is connected to the second slide plate 24 inwardly. The second slide plate 24 slides on the four horizontally arranged guide columns of the cylinder bracket 25, and the second slide plate 24 drives the thrust bearing seat 23. The thrust bearing seat 23 is sleeved on the shaft end of the hot stamping roller body 1 close to the rotary joint 4 and abuts on the shoulder of the shaft. The bearing shaft section of the hot stamping roller body 1 is slidably connected with the inner ring of the bearing seat 14, that is, the hot stamping roller body 1 can move axially.

[0045] Specifically, the main motor 17 includes a servo motor and a precision reducer, and the adjustment motor 20 is a reduction motor running at a low speed.

[0046] During normal operation, the cylinder 26 is pushed out, and the second slide plate 24 drives the thrust bearing seat 23 to push the axial movement of the hot stamping roller body 1. One half of the tooth clutch 16 at the shaft end of the hot stamping roller body 1 is engaged with the other half, and the tooth clutch 16 enters the engaged state, and the main motor 17 works to drive the hot stamping roller body 1 to rotate, thereby realizing the hot stamping operation of the hot stamping roller body 1. When the axial position of the hot stamping roller body 1 needs to be aligned and adjusted with the plate 101, the cylinder 26 presses the hot stamping roller body 1 with low pressure, and the adjustment motor 20 starts to work. The rotating lead screw 21 drives the nut slider 22 to realize the horizontal movement of the first slide plate 19. The installation position of the main motor 17 moves axially, thereby realizing the axial position adjustment of the hot stamping roller body 1. When the plate roller needs to be replaced, the cylinder 26 retreats, the motor 20 is adjusted to reverse, the rotating screw 21 drives the nut slider 22 to realize the horizontal backward movement of the first slide plate 19, and the two halves of the tooth clutch 16 are disengaged, so that the hot stamping roller body 1 is disengaged from the drive, which facilitates the replacement of the plate 101.

[0047] Through the cooperation of the driving system and the tightening system, when the hot stamping roller body 1 is working, the cylinder 26 is always in a state of tightening the hot stamping roller body 1, which can achieve axial clearance and avoid axial movement during the working process. At the same time, by adjusting the motor 20 to drive the first slide plate 19 to move horizontally forward and backward, the axial calibration of the hot stamping roller body 1 is realized.

[0048] When the energy-saving hot stamping roller mechanism of the present invention is working: under normal working conditions, one half of the tooth clutch 16 is engaged with the other half, and the output shaft end of the main motor 17 pushes the push rod head 603. The sleeve member 6 compresses the first compression spring 7 to move to the left relative to the heat storage body 5, and the second oil hole 601 coincides with the first oil hole 501. At this time, the inner oil chamber 8 and the outer oil chamber 9 are connected, and the electric heating rod 2 introduces the heating power supply through the rotary joint 4 to start working. During the rotation process, the heat-conducting oil in the inner oil chamber 8 and the outer oil chamber 9 continuously flows and mixes, and the outer wall of the hot stamping roller body 1 is heated to the working temperature to perform the hot stamping operation. When the plate needs to be replaced or repaired and maintained, the electric heating rod 2 is powered off and the cylinder 26 is retracted. The adjustment motor 20 is reversed, and the rotating screw 21 drives the nut slider 22 to realize the horizontal backward movement of the first slide plate 19, and the two halves of the tooth clutch 16 are disengaged. The sleeve member 6 moves to the right and resets under the action of the first compression spring 7, and the second oil hole 601 is staggered with the first oil hole 501. The inner oil chamber 8 and the outer oil chamber 9 are isolated. After the outer oil chamber 9 cools down, it is convenient to change the plate. The inner oil chamber 8 stores heat and keeps warm, which is conducive to rapid heating when the machine is started again.

[0049] In summary, the energy-saving hot stamping roller mechanism of the present invention introduces the heating power supply of the electric heating rod 2 through the rotary joint 4, avoids the use of circulating heat-conducting oil for heating, and has a compact and reliable structure. The spacing component is arranged in the intermediate cavity and divides it into an inner oil chamber 8 and an outer oil chamber 9. The isolated inner oil chamber 8 and outer oil chamber 9 are not connected in the shutdown state, and even if the outer oil chamber 9 dissipates heat and cools down, it does not affect the oil temperature inside the inner oil chamber 8; when it is switched to the working state, the electric heating rod 2 starts to work, and the inner oil chamber 8 and the outer oil chamber 9 are connected, which can quickly heat up and improve production efficiency. In addition, by opening holes in the mutually nested heat storage body 5 and the sleeve member 6, the overlap and stagger of the two openings are achieved in the process of axially moving the sleeve member 6, thereby achieving the connection and isolation of the inner oil chamber 8 and the outer oil chamber 9; by setting the push rod head 603, it is possible to control the axial movement of the sleeve member 6 outside the hot stamping roller body 1. By adding the first compression spring 7, the sleeve member 6 can be pushed outward, so that the sleeve member 6 seals the first oil hole 501 on the heat storage body 5 under normal conditions. By providing the circumferential anti-rotation structure between the heat storage body 5 and the sleeve member 6, the sleeve member 6 is prevented from circumferentially rotating relative to the heat storage body 5. After rotation, the first oil hole 50 and the second oil hole 601 cannot be aligned, thereby reducing the oil flow effect. Through the cooperation of the slide groove 502 and the positioning protrusion 602, the guide area between the heat storage body 5 and the sleeve member 6 is increased, and the wear is reduced in an oil lubrication environment. By adding an internal temperature sensor 10 in the inner oil chamber 8 and monitoring the oil temperature of the inner oil chamber 8, the oil temperature of the inner oil chamber 8 can be prevented from overheating and accidents can be avoided. By adding the oil plug assembly in the oil filling hole 104, the oil filling channel can be closed; by using the piston plug 11 to seal the oil filling hole 104, when the volume of the heat transfer oil changes, the sealing position can be adaptively adjusted to adapt, so as to avoid the compression and deformation of the hot stamping roller body 1. By adding the guide rod, the piston plug 11 can be auxiliary guided for axial displacement to avoid overturning, and it is also convenient to remove the piston plug 11 for maintenance. Through the cooperation of the drive system and the tightening system, when the hot stamping roller body 1 is working, the cylinder 26 is always in a state of tightening the hot stamping roller body 1, which can achieve axial gap-free and avoid axial movement during the working process. At the same time, by adjusting the motor 20 to drive the first slide plate 19 to move back and forth horizontally, the axial calibration of the hot stamping roller body 1 is conveniently achieved.

[0050] The present invention also discloses a working method of an energy-saving hot stamping roller mechanism. The energy-saving hot stamping roller mechanism described in any one of the above embodiments is used to perform hot stamping operations. In a shutdown state, the inner oil chamber is isolated from the outer oil chamber, and the inner oil chamber reduces heat dissipation, which is conducive to rapid heating when the machine is started again.

[0051] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0052] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An energy-saving hot stamping roller mechanism, characterized in that: The invention comprises a hot stamping roller body (1), an electric heating rod (2), a sealing plug (3), a rotary joint (4) and a spacing component, wherein the electric heating rod (2) is coaxially inserted into the middle cavity of the hot stamping roller body (1) and the root thereof is sealed by the sealing plug (3); the protruding end of the electric heating rod (2) is connected to a power source via the rotary joint (4); the spacing component is coaxially arranged in the middle cavity and sleeved on the outer periphery of the electric heating rod (2), and the spacing component divides the middle cavity into an inner oil cavity (8) and an outer oil cavity (9); the spacing component can connect the inner oil cavity (8) and the outer oil cavity (9) in a working state, and can isolate the inner oil cavity (8) and the outer oil cavity (9) in a stopped state.

2. The energy-saving hot stamping roller mechanism according to claim 1 is characterized in that: The spacing assembly comprises a heat storage body (5) and a sleeve member (6); the heat storage body (5) is cylindrical and one end of which is sealedly connected to the distal end of the electric heating rod (2), and the other end of which is pressed and fixed by the sealing plug (3) to the insertion end of the intermediate cavity; the sleeve member (6) is slidably sleeved on the outside of the heat storage body (5); the end of the sleeve member (6) away from the sealing plug (3) is provided with a push rod head (603) that seals and protrudes out of the hot stamping roller body (1); pushing and pulling the push rod head (603) can drive the sleeve member (6) to slide axially on the heat storage body (5); a plurality of first oil holes (501) are provided on the heat storage body (5), and a plurality of second oil holes (601) are provided on the sleeve member (6); when the push rod head (603) is pushed up, the first oil holes (501) and the second oil holes (601) are overlapped and connected.

3. The energy-saving hot stamping roller mechanism according to claim 2 is characterized in that: The main parts of the heat storage body (5) and the sleeve member (6) are nested cylinders, and a circumferential anti-rotation structure is also provided between the heat storage body (5) and the sleeve member (6).

4. The energy-saving hot stamping roller mechanism according to claim 3 is characterized in that: The circumferential anti-rotation structure comprises a slide groove (502) and a positioning protrusion (602); a plurality of the slide grooves (502) are evenly distributed on the outer wall of the heat storage body (5) on a circumference; the slide grooves (502) are arranged along the length direction of the heat storage body (5); the positioning protrusions (602) are arranged on the inner wall of the nesting section of the sleeve member (6) and the number of the positioning protrusions (602) is the same as that of the slide grooves (502); the positioning protrusions (602) are guided to slide in the slide grooves (502).

5. The energy-saving hot stamping roller mechanism according to claim 2 is characterized in that: It also comprises a first compression spring (7), the first compression spring (7) being sleeved around the outer periphery of the root of the heat storage body (5), and the two ends of the first compression spring (7) respectively abutting against the inner end wall of the intermediate cavity and the inner end surface of the sleeve member (6).

6. The energy-saving hot stamping roller mechanism according to claim 1 is characterized in that: It also includes an internal temperature sensor (10), which is capable of measuring the temperature of the internal oil chamber (8), and is mounted on the inner wall of the sealing plug (3). The internal temperature sensor (10) is electrically connected to the electronic control system of the hot stamping machine.

7. The energy-saving hot stamping roller mechanism according to claim 1, characterized in that: It also comprises an oil filling plug assembly, wherein an oil filling hole (104) communicating with the outer oil cavity (9) is provided on the end wall of the hot stamping roller body (1), and the oil filling plug assembly is installed in the oil filling hole (104).

8. The energy-saving hot stamping roller mechanism according to claim 7, characterized in that: The oil filling plug assembly comprises a piston plug (11), a second compression spring (12) and a threaded plug (13); the piston plug (11) is sealingly and slidably connected to the inner section of the oil filling hole (104); the outer section of the oil filling hole (104) is arranged as a threaded hole with a thickened diameter and is threadedly connected to the threaded plug (13); the second compression spring (12) is coaxially arranged in the oil filling hole (104) and abuts between the piston plug (11) and the threaded plug (13).

9. The energy-saving hot stamping roller mechanism according to claim 1, characterized in that: Also includes: The driving system comprises a tooth clutch (16), a main motor (17), an adjustment motor bracket (18), a first slide plate (19) and an adjustment motor (20); the two ends of the hot stamping roller body (1) are horizontally mounted on the side wall plate (15) of the hot stamping machine through bearing seats (14), the adjustment motor bracket (18) is fixedly connected to the outside of the side wall plate (15) on one side; the adjustment motor (20) is mounted on the outside of the adjustment motor bracket (18), and the output shaft of the adjustment motor bracket (18) is coaxially mounted with a lead screw (21). A nut slider (22) is connected to the transmission thread on the lead screw (21), and the nut slider (22) is fixedly connected to the first slide plate (19). The first slide plate (19) slides on four horizontally arranged guide columns of the adjustment motor bracket (18). The main motor (17) is installed on the outside of the first slide plate (19), and the output shaft of the main motor (17) is installed with one half of the tooth clutch (16), and the other half of the tooth clutch (16) is correspondingly installed on the shaft end of the hot stamping roller body (1). The tightening system comprises a thrust bearing seat (23), a second slide plate (24), a cylinder support (25) and a cylinder (26), wherein the cylinder support (25) is fixedly connected to the outside of the side wall plate (15) on the other side, the cylinder (26) is installed on the outside of the cylinder support (25), and the piston rod of the cylinder (26) is connected inwardly to the second slide plate (24); the second slide plate (24) slides on four horizontally arranged guide columns of the cylinder support (25), and the second slide plate (24) drives the thrust bearing seat (23), and the thrust bearing seat (23) is sleeved on the shaft end of the hot stamping roller body (1) close to the rotary joint (4); the bearing shaft section of the hot stamping roller body (1) is slidably connected to the inner ring of the bearing seat (14).

10. An energy-saving hot stamping roller mechanism working method, characterized in that: When the energy-saving hot stamping roller mechanism described in any one of claims 1 to 9 is used for hot stamping operations, in a shutdown state, the inner oil cavity is isolated from the outer oil cavity, and the inner oil cavity reduces heat dissipation, which is conducive to rapid heating when the machine is started again.

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