An energy-saving hot stamping roller mechanism and its working method

Abstract

The present invention discloses an energy-saving hot stamping roller mechanism and its working method. The energy-saving hot stamping roller mechanism of the present invention includes a hot stamping roller main body, an electric heating rod, a sealing plug, a rotary joint, and a spacer assembly. The electric heating rod is coaxially inserted into the middle cavity of the hot stamping roller main body, and the root is sealed by the sealing plug; the protruding end of the electric heating rod is connected to a power source through the rotary joint; the spacer assembly is coaxially arranged in the middle cavity and sleeved around the electric heating rod, and the spacer assembly divides the middle cavity into an inner oil cavity and an outer oil cavity; the spacer assembly can communicate the inner oil cavity and the outer oil cavity in the working state and isolate the inner oil cavity and the outer oil cavity in the shutdown state. The present invention divides the oil cavity into an inner oil cavity and an outer oil cavity. When the power is off, the inner oil cavity is isolated for heat preservation, reducing heat loss and improving the utilization rate of thermal energy.

Description

Technical Field

[0001] The present invention relates to the technical field of hot stamping machines, and particularly to an energy-saving hot stamping roller mechanism and its working method. Background Art

[0002] The existing hot stamping plate roller heating system of tipping paper hot stamping machines mainly consists of components such as an oil tank, an electric heating pipe, an oil pump, an oil delivery pipe, a rotary joint, a hot stamping plate roller, an exhaust device, a valve, a temperature measuring element, a temperature controller, and a contactor. Its working principle is as follows: The hot stamping plate roller rotates at a high speed, the oil tank is placed statically on one side of the hot stamping plate roller. After the heat-conducting oil in the oil tank is heated by the electric heating pipe, it is pressurized by the oil pump and conveyed into the hot stamping plate roller through the oil delivery pipe, and then the heat-conducting oil flows back to the oil tank. The hot stamping plate roller is heated and raised in temperature through the circulation of the high-temperature heat-conducting oil. The temperature controller controls the temperature through the temperature measuring element and the heating element installed in the oil tank, so that the heat-conducting oil in the oil tank reaches the set temperature and remains constant. The utility model patents with the publication numbers of CN203093270U and CN216832805U both use this circulating oil heating method to heat the hot stamping plate roller. Although it can ensure the stability of the temperature, it requires an oil pump, an oil tank, oil pipes, etc. The equipment investment cost and operation cost are high, and at the same time, oil leakage is likely 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 to use hot stamping rollers with built-in heating rods. A long electric heating rod is coaxially arranged in the middle oil cavity of this hot stamping roller to heat the heat-conducting oil, and the circulating oil is no longer used for heating. The oil tank and oil pump are omitted, and there are no oil circuit joints either. The structure is more compact and the failure rate is low. However, this heating form uses one electric heating rod to heat the heat-conducting oil in the entire oil cavity. When restarting after shutdown, the heating time is long, which affects the production efficiency. At the same time, because during the debugging, failure or maintenance of the hot stamping machine, it often needs to be shut down for a short time multiple times. Repeatedly powering off, cooling down and then heating the hot stamping roller or keeping it in the heat preservation state all the time will waste electric energy.

[0004] In order to overcome the above problems, an energy-saving hot stamping roller mechanism and its working method 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 cavity into an inner oil cavity and an outer oil cavity. When powered off, the inner oil cavity is isolated and heat-preserved, reducing heat loss and improving the utilization rate of thermal energy.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions:

[0007] An energy-saving hot stamping roller mechanism of the present invention includes a hot stamping roller main body, an electric heating rod, a sealing plug, a rotary joint, and a spacer assembly. The electric heating rod is coaxially inserted into the middle cavity of the hot stamping roller main body, and the root is sealed by the sealing plug. The protruding end of the electric heating rod is connected to a power source through the rotary joint. The spacer assembly is coaxially arranged in the middle cavity and sleeved around the electric heating rod. The spacer assembly divides the middle cavity into an inner oil cavity and an outer oil cavity. The spacer assembly can communicate the inner oil cavity and the outer oil cavity in the working state and isolate the inner oil cavity and the outer oil cavity in the shutdown state.

[0008] Further, the spacer assembly includes a heat storage body and a sleeve member. The heat storage body is cylindrical, with one end hermetically connected to the distal end of the electric heating rod, and the other end being pressed and fixed by the sealing plug at the insertion end of the middle cavity. The sleeve member is slidably sleeved outside the heat storage body. A push rod head that seals and protrudes from the hot stamping roller main body is provided at one end of the sleeve member away from the sealing plug. Pushing and pulling the push rod head can drive the sleeve member to axially slide on the heat storage body. A plurality of first oil through holes are provided on the heat storage body, and a plurality of second oil through holes are provided on the sleeve member. When the push rod head is pushed, the first oil through holes and the second oil through holes coincide and communicate.

[0009] Further, the main parts of the heat storage body and the sleeve member are nested cylinders, and a circumferential anti-rotation structure is also provided between the heat storage body and the sleeve member.

[0010] Further, the circumferential anti-rotation structure includes a chute and a positioning protrusion. A plurality of the chutes are circumferentially distributed on the outer wall of the heat storage body, and the chutes are longitudinally through along the length direction of the heat storage body. The positioning protrusion is provided on the inner wall of the nested section of the sleeve member and the number is the same as that of the chutes. The positioning protrusion slides in the chute for guiding.

[0011] Further, it also includes a first compression spring. The first compression spring is sleeved around the root of the heat storage body, and both ends of the first compression spring are respectively abutted against the inner end wall of the middle cavity and the inner end face of the sleeve member.

[0012] Further, it also includes an inner temperature sensor. The inner temperature sensor can measure the temperature of the inner oil cavity. The inner temperature sensor is installed on the inner wall of the sealing plug, and the inner temperature sensor is electrically connected to the electric control system of the hot stamping machine.

[0013] Further, it also includes an oil injection plugging assembly. An oil injection hole communicating with the outer oil cavity is provided on the end wall of the hot stamping roller main body, and the oil injection plugging assembly is installed in the oil injection hole.

[0014] Further, the oil filling plugging assembly includes a piston plug, a second compression spring, and a pipe plug. The piston plug is sealingly and slidably connected to the inner section of the oil filling hole. The outer section of the oil filling hole is provided as a threaded hole with an increased diameter and is threadedly connected to the pipe plug. The second compression spring is coaxially arranged in the oil filling hole and abuts between the piston plug and the pipe plug.

[0015] Further, it further includes:

[0016] A drive system, including a jaw clutch, a main motor, an adjustment motor bracket, a first slide plate, and an adjustment motor. Both ends of the main body of the hot stamping roller are horizontally supported on the side wall plates of the hot stamping machine through bearing seats respectively. The adjustment motor bracket is fixedly connected to the outside of one of the side wall plates. The adjustment motor is installed outside the adjustment motor bracket. A lead screw is coaxially installed on the output shaft of the adjustment motor bracket. A nut slider is threadedly connected to the lead screw in a driving manner. The nut slider is fixedly connected to the first slide plate. The first slide plate is guided and slid on four horizontally arranged guide columns of the adjustment motor bracket. The main motor is installed outside the first slide plate. One half of the jaw clutch is installed on the output shaft of the main motor, and the other half of the jaw clutch is correspondingly installed on the shaft end of the main body of the hot stamping roller.

[0017] A tightening system, including 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 other side wall plate. The cylinder is installed outside the cylinder bracket. The piston rod of the cylinder is connected to the second slide plate inward. The second slide plate is guided and slid on four horizontally arranged guide columns of the cylinder bracket. The second slide plate drives the thrust bearing seat. The thrust bearing seat is sleeved on the shaft end of the main body of the hot stamping roller close to the rotary joint. The shaft section of the bearing position of the main body of the hot stamping roller is slidably connected to the inner ring of the bearing seat.

[0018] The present invention also discloses a working method for an energy-saving hot stamping roller mechanism. Using the energy-saving hot stamping roller mechanism described in any one of the above, in the shutdown state, the inner oil cavity is isolated from the outer oil cavity, and the inner oil cavity reduces heat dissipation, which is beneficial to quickly warming up when starting the machine again.

[0019] Compared with the prior art, the beneficial technical effects of the present invention are:

[0020] For the energy-saving hot stamping roller mechanism of the present invention, the heating power supply of the electric heating rod is introduced through the rotary joint, avoiding the use of circulating heat-conducting oil for heating, and the structure is compact and reliable. Through the spacer assembly arranged in the intermediate cavity and separating it into an inner oil cavity and an outer oil cavity, the inner oil cavity and the outer oil cavity are not connected in the shutdown state. Even if the outer oil cavity dissipates heat and cools down, it does not affect the oil temperature inside the inner oil cavity. When 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 warm up and improve production efficiency.

[0021] 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

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] 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;

[0024] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the middle AA part;

[0025] Figure 3 for Figure 1 A schematic diagram of the partial enlarged structure of the middle I part;

[0026] 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;

[0027] 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.

[0028] Description of reference numerals: 1. Main body of hot stamping roller; 101. Plate; 102. Mandrel; 103. Sealing ring; 104. Oil injection hole; 2. Heating rod; 3. Sealing plug; 4. Rotary joint; 5. Heat storage body; 501. First oil passage hole; 502. Chute; 6. Sleeve part; 601. Second oil passage hole; 602. Positioning projection; 603. Push rod head; 7. First compression spring; 8. Inner oil cavity; 9. Outer oil cavity; 10. Inner temperature sensor; 11. Piston plug; 12. Second compression spring; 13. Pipe plug; 14. Bearing seat; 15. Side wall panel; 16. Jaw clutch; 17. Main motor; 18. Adjusting motor bracket; 19. First sliding plate; 20. Adjusting motor; 21. Lead screw; 22. Nut slider; 23. Thrust bearing seat; 24. Second sliding plate; 25. Cylinder bracket; 26. Cylinder. Detailed implementation manners

[0029] The core of the present invention is to provide an energy-saving hot stamping roller mechanism and its working method. The oil cavity is divided into an inner oil cavity and an outer oil cavity. When the power is off, the inner oil cavity is isolated and heat-insulated, reducing heat loss and improving the utilization rate of thermal energy.

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is 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 should not be construed as a limitation to the present invention.

[0032] Referring to the accompanying drawings, Figure 1 is the main sectional view structural schematic diagram of the energy-saving hot stamping roller mechanism of the present invention; Figure 2 is Figure 1 the sectional view structural schematic diagram of the A-A part in Figure 3 is Figure 1 the partial enlarged structural schematic diagram of the I part in Figure 4 is the main view structural schematic diagram of the installation state of the energy-saving hot stamping roller mechanism of the present invention; Figure 5 is the top view structural schematic diagram of the installation state of the energy-saving hot stamping roller mechanism of the present invention.

[0033] In a specific implementation manner, as Figures 1 to 5As shown in the figure, the energy-saving hot stamping roller mechanism of the present invention includes a hot stamping roller main 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 main body 1, and the root is sealed with a sealing plug 3. Specifically, the hot stamping roller main body 1 is of a split structure. One end of the middle cavity is open, and a mandrel 102 is connected to this end by a thread. The electric heating rod 2 passes through the middle hole of the mandrel 102, and the protruding end of the electric heating rod 2 is connected to the power supply through a rotary joint 4. The spacing component is coaxially arranged in the middle cavity and sleeved outside 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 communicate the inner oil cavity 8 and the outer oil cavity 9 in the working state and isolate the inner oil cavity 8 and the outer oil cavity 9 in the shutdown state.

[0034] The heating power supply of the electric heating rod 2 is introduced through the rotary joint 4, avoiding the use of circulating heat-conducting oil for heating, and the structure is compact and reliable. Through the spacing component arranged in the middle cavity and dividing 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. 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 increase the temperature and improve the production efficiency.

[0035] In a specific embodiment of the present invention, as Figure 1 and Figure 2 shown, the spacing component includes a heat storage body 5 and a sleeve member 6. The heat storage body 5 is cylindrical, and one end is hermetically connected to the distal end of the electric heating rod 2, and the other end is pressed and fixed by the sealing plug 3 at the insertion end of the middle cavity. 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 outside the heat storage body 5. A push rod head 603 that seals and protrudes from the hot stamping roller main body 1 is provided at one end of the sleeve member 6 away from the sealing plug 3. Pushing and pulling the push rod head 603 can drive the sleeve member 6 to axially slide on the heat storage body 5. A plurality of first oil through holes 501 are provided on the heat storage body 5, and a plurality of second oil through holes 601 are provided on the sleeve member 6. When the push rod head 603 is pushed, the first oil through holes 501 and the second oil through holes 601 coincide and communicate.

[0036] Specifically, as Figure 1 shown, a sealing ring is provided in the hole section of the hot stamping roller main body 1 that cooperates with the push rod head 603 to prevent leakage here.

[0037] Specifically, as Figure 1 and Figure 2 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 heat energy.

[0038] Specifically, as Figure 1As shown, it further includes a first compression spring 7. The first compression spring 7 is sleeved around the root of the heat storage body 5, and both ends of the first compression spring 7 are respectively abutted against the inner end wall of the intermediate cavity and the inner end face of the sleeve member 6, so that the through holes on the heat storage body 5 and the sleeve member 6 are staggered.

[0039] By opening holes on the mutually nested heat storage body 5 and sleeve member 6, the coincidence and staggering of the two openings are realized during the axial movement of the sleeve member 6, thereby realizing the communication and isolation of the inner oil cavity 8 and the outer oil cavity 9; through the arrangement of the push rod head 603, the axial movement of the sleeve member 6 can be controlled outside the main body 1 of the hot stamping roller. By adding the first compression spring 7, the sleeve member 6 can be pushed outwards, so that the sleeve member 6 seals the first oil through hole 501 on the heat storage body 5 under normal conditions.

[0040] In a specific embodiment of the present invention, as Figure 1 and Figure 2 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.

[0041] Specifically, as Figure 2 shown, the circumferential anti-rotation structure includes a chute 502 and a positioning protrusion 602. A plurality of chutes 502 are circumferentially distributed on the outer wall of the heat storage body 5. The chute 502 is provided throughout the length of the heat storage body 5, and the chute 502 is a groove with an arc cross-section. The positioning protrusion 602 is arranged on the inner wall of the nested section of the sleeve member 6 and has the same number as the chute 502. The positioning protrusion 602 slides in the chute 502 for guiding.

[0042] Obviously, the heat storage body 5 and the sleeve member 6 can also adopt a square tube form or a regular polygon cylinder. In this case, the circumferential anti-rotation structure does not need to be provided. However, for the convenience of production and processing, the present application preferably adopts a cylinder form. Similar simple replacement methods all fall within the protection scope of the present invention.

[0043] By providing the circumferential anti-rotation structure between the heat storage body 5 and the sleeve member 6, the circumferential rotation of the sleeve member 6 relative to the heat storage body 5 is prevented. After rotation, the first oil through hole 50 and the second oil through hole 601 cannot be aligned, reducing the oil passing effect. Through the cooperation of the chute 502 and the positioning protrusion 602, the guiding area between the heat storage body 5 and the sleeve member 6 is increased, and the wear condition is reduced in an oil lubrication environment.

[0044] In a specific embodiment of the present invention, as Figure 1 and Figure 3As shown in the figure, the energy-saving hot stamping roller mechanism of the present invention further includes an internal temperature sensor 10. The internal temperature sensor 10 can measure the temperature of the internal oil cavity 8. The internal temperature sensor 10 is installed on the inner wall of the sealing plug 3, and the internal temperature sensor 10 is electrically connected to the electro-control system of the hot stamping machine. The signal wire of the internal temperature sensor 10 is also led out through the rotary joint 4.

[0045] Actually, under the usual temperature control method, an external temperature sensor is also provided on the outer side of the hot stamping roller main body 1. The external temperature sensor uses a non-contact infrared induction sensor to measure the temperature of the annular plate 101 on the outer wall of the hot stamping roller main body 1, and the external temperature sensor is also electrically connected to the electro-control system of the hot stamping machine.

[0046] By adding an internal temperature sensor 10 in the internal oil cavity 8 to monitor the oil temperature of the internal oil cavity 8, it is possible to avoid overheating of the oil temperature in the internal oil cavity 8 and prevent accidents.

[0047] In a specific embodiment of the present invention, as Figure 1 and Figure 3 shown, the energy-saving hot stamping roller mechanism of the present invention further includes an oil injection plugging assembly. An oil injection hole 104 communicating with the external oil cavity 9 is opened on the end wall of the hot stamping roller main body 1, and the oil injection plugging assembly is installed in the oil injection hole 104.

[0048] Specifically, as Figure 3 shown, the oil injection plugging assembly includes a piston plug 11, a second compression spring 12 and a screw plug 13. The piston plug 11 is hermetically and slidably connected to the inner section of the oil injection hole 104. The outer section of the oil injection hole 104 is set as a threaded hole with an increased diameter and is threadedly connected to the screw plug 13. The piston plug 11 can axially move in the inner section of the oil injection hole 104 while sealing the heat-conducting oil. The second compression spring 12 is coaxially arranged in the oil injection hole 104 and abuts between the piston plug 11 and the screw plug 13.

[0049] 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.

[0050] By adding the oil injection plugging assembly in the oil injection hole 104, the oil injection hole can be closed; by using the piston plug 11 to seal the oil injection hole 104, when the volume of the heat-conducting oil changes, the sealing position can be adaptively adjusted to fit, avoiding the situation of the hot stamping roller main body 1 being deformed under pressure. By adding the guide rod, it can assist in guiding the axial displacement of the piston plug 11, avoiding tipping, and at the same time facilitating the maintenance of removing the piston plug 11.

[0051] In a specific embodiment of the present invention, as Figure 4 and Figure 5 shown, the energy-saving hot stamping roller mechanism of the present invention further includes:

[0052] The drive system includes a jaw clutch 16, a main motor 17, an adjustment motor bracket 18, a first slide plate 19, and an adjustment motor 20. Both 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 mounted outside one side wall plate 15 by bolts. The adjustment motor bracket 18 is of a four-column frame structure. The adjustment motor 20 is mounted outside the adjustment motor bracket 18. A lead screw 21 is coaxially mounted on the output shaft of the adjustment motor bracket 18. A nut slider 22 is threadedly connected to the lead screw 21 in a driving manner. The nut slider 22 is fixedly connected to the first slide plate 19. The first slide plate 19 is guided and slid on the four horizontally arranged guide columns of the adjustment motor bracket 18. The main motor 17 is mounted outside the first slide plate 19. One half of the jaw clutch 16 is mounted on the output shaft of the main motor 17, and the other half of the jaw clutch 16 is correspondingly mounted on the shaft end of the hot stamping roller body 1. When the two halves of the jaw clutch 16 are combined, it enters the working state where the main motor 17 drives the hot stamping roller body 1 to rotate. At this time, the end of the output shaft of the main motor 17 can push against the push rod head 603.

[0053] The clamping 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 mounted outside the other side wall plate 15 by bolts. The cylinder bracket 25 is of a four-column frame structure. The cylinder 26 is mounted outside the cylinder bracket 25. The piston rod of the cylinder 26 is connected inward to the second slide plate 24. The second slide plate 24 is guided and slid on the four horizontally arranged guide columns of the cylinder bracket 25. 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 against the shoulder of the shaft. The shaft section of the bearing position of the hot stamping roller body 1 is slidably connected to the inner ring of the bearing seat 14, that is, the hot stamping roller body 1 can axially move back and forth.

[0054] Specifically, the main motor 17 includes a servo motor and a precision reduction gearbox. The adjustment motor 20 is a reduction motor with low-speed operation.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For related parts, reference can be made to the description in the method section.

[0061] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall 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; 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 to the insertion end of the intermediate cavity by the sealing plug (3); 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; 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 a 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).

2. The energy-saving hot stamping roller mechanism according to claim 1 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).

3. The energy-saving hot stamping roller mechanism according to claim 2 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).

4. The energy-saving hot stamping roller mechanism according to claim 1 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).

5. 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.

6. 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).

7. The energy-saving hot stamping roller mechanism according to claim 6, 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).

8. The energy-saving hot stamping roller mechanism according to claim 1, characterized in that: Also includes: 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).

9. 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 8 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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