Multicolor printing device for bottle body
By using electrostatic dust collecting tubes and heating devices in the multi-color printing equipment of bottles, the problems of poor dust removal and secondary pollution in traditional equipment are solved, and higher printing quality and better ink adhesion are achieved.
Patent Information
- Application Number
- CN202510494005.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-19
- Publication Date
- 2025-06-10
AI Technical Summary
The dust removal effect of traditional bottle multi-color printing equipment is not high, and it is easy to cause secondary contamination of the bottle and affect printing quality.
The electrostatic dust collector is used to perform electrostatic dust removal on the surface of the bottle body, and the gas containing ions is sprayed through the ventilation holes, and the connection between the bottle body is strengthened with the suction cup to ensure the dust removal effect. At the same time, the bottle body is preheated using a heating device to enhance the adhesion and drying effect of the ink.
It improves the cleanliness of the bottle surface, improves the adhesion effect of ink, improves the printing quality, and avoids secondary pollution.
Smart Images
Figure CN120116604A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of printing technology, and in particular to a multi-color printing device for bottle bodies. Background Art
[0002] With the increasing requirements for product packaging technology, the surface patterns of packaging bottle bodies are becoming more and more delicate and complex, and the colors of the patterns are also becoming more and more colorful. This places higher and higher requirements on the equipment. Traditional equipment is difficult to achieve high-precision color overlay and pattern transition.
[0003] Currently, there are already some multi-color printing devices for bottle bodies on the market. These devices generally include a support frame, a material taking mechanism, a feeding mechanism, a rotating mechanism, a dust removal mechanism, a printing mechanism, and a curing mechanism. The material taking mechanism is arranged on the outer side of the upper end of the support frame, the rotating mechanism is arranged in the middle of the upper end of the support frame, there are multiple feeding mechanisms, and the multiple feeding mechanisms are annularly distributed on the outer side of the upper end of the rotating mechanism. The dust removal mechanism is arranged on one side of the upper end of the rotating mechanism and includes a connecting bracket, a sliding rod, a brush, and a collection box. There are multiple printing mechanisms, and the multiple printing mechanisms are annularly distributed on the side surface of the upper end of the rotating mechanism. A curing mechanism is arranged on one side of each printing mechanism.
[0004] The dust removal mechanism in the above-mentioned device achieves the dust removal effect by cleaning the surface of the bottle body with a brush. Its cleaning effect is not high, and the dust removal effect is easily affected by the cleanliness of the brush. Dust and the like may be hidden on the surface of the brush and inside the bristles, which will cause secondary pollution to the bottle body, instead exacerbating the pollution of the bottle body surface, and may cause poor adhesion of the ink during printing, thereby affecting the printing quality of the product. Summary of the Invention
[0005] In order to improve the cleanliness of the bottle body surface, improve the adhesion effect of the ink on the bottle body surface, and further improve the printing quality of the product, the present application provides a multi-color printing device for bottle bodies.
[0006] The multi-color printing device for bottle bodies provided by the present application adopts the following technical solutions: A multi-color printing device for bottle bodies includes a support frame, a material taking mechanism, a feeding mechanism, a rotating mechanism, a printing mechanism, and a curing mechanism. The feeding mechanism includes a feeding auxiliary abutting column, a feeding motor, and a feeding main abutting column. The feeding motor is fixedly connected to the feeding main abutting column; a suction cup is fixedly installed on the feeding main abutting column, and the suction cup abuts against the bottom of the bottle body. A support rod is arranged above the support frame at the position of the material taking mechanism, a connecting frame is fixedly connected to the support rod, an electrostatic dust removal tube is fixedly arranged on the connecting frame, and a plurality of ventilation holes are opened on the side wall of the electrostatic dust removal tube; a heating device for preheating the bottle body is also arranged on the support frame.
[0007] By adopting the above technical solution, the bottle body moves from the conveyor belt to the feeding mechanism under the action of the material taking mechanism, and the bottom of the bottle abuts against the main feeding abutting column. The suction cup on the main feeding abutting column can strengthen the connection with the bottle body. Subsequently, the rotating motor starts to drive the main feeding abutting column and the bottle body to rotate together under the static electricity dust removal tube. The static electricity dust removal tube sprays gas containing ions towards the bottle body through the ventilation holes, so as to be able to remove static electricity on the surface of the bottle body without secondary pollution, with good dust removal effect, which is beneficial to subsequent ink printing. In addition, before printing, the bottle body is preheated by a heating device, which can enhance the adhesion of the ink and the drying effect, further improving the printing effect of the ink and enhancing the product quality.
[0008] Preferably, the heating device includes a lifting plate and a gas stove fixed on the lifting plate, and the gas in the gas stove burns to preheat the bottle body; the heating device further includes a lifting assembly for adjusting the height of the gas stove according to the diameter of the bottle body.
[0009] By adopting the above technical solution, when bottles with different diameters are printed on the device, the lifting mechanism can adjust the height of the gas stove according to the diameter of the bottle body, so as to prevent the bottle body from touching the gas stove when it is too close to the gas stove, and at the same time adjust the gas stove to a proper height so that the outer flame of the flame touches the surface of the bottle body, thereby accelerating the preheating of the bottle body.
[0010] Preferably, the lifting assembly includes a first spring, a detection disc and a plurality of detection rods. The detection disc is fixedly connected to the main feeding abutting column, and the suction cup is fixed at the center of the detection disc. The plurality of detection rods are located below the suction cup and are arranged in sequence along the vertical diameter. The detection rods slide through the detection disc, and the bottle body abuts against the detection disc and the detection rods. A reset assembly for resetting the detection rods is arranged in the detection disc; a lifting groove for the lifting plate to slide is formed on the support frame. The first spring is arranged in the lifting groove, and its two ends are respectively fixedly connected to the inner wall of the lifting groove and the bottom of the lifting plate. An inclined surface is arranged on the top of the lifting plate, and the detection rod abuts against the inclined surface. An installation table is fixedly connected to the side wall of the lifting plate, and the gas stove is installed on the installation table.
[0011] By adopting the above technical solution, when the bottle body bottom is abutted against the detection disk by the material taking mechanism, the bottom of the bottle can push the detection rod at its corresponding position to move until the end away from the bottle body penetrates out of the detection disk. The detection rod pushed out at the edge position of the bottom of the bottle is at the lowest end among the pushed-out detection rods. When the gift giving mechanism rotates to the heating device, the pushed-out detection rod abuts against the inclined surface of the lifting plate. When the detection rod moves along with the turntable and abuts against the inclined surface, it pushes the lifting plate to compress the first spring downward until the top wall of the lifting plate abuts against the lowest detection rod. At this time, the top position of the lifting plate is the lowest point in the radius of the bottom of the bottle. During the downward movement of the lifting plate, it drives the mounting table and the gas stove thereon to move together, so that the gas stove can be in a suitable position for bottle bodies with different diameters, and the outer flame of the flame on it contacts the surface of the bottle body.
[0012] Preferably, the reset assembly includes a second spring and a reset block. The detection disk is provided with a plurality of through holes respectively for the plurality of detection rods to pass through. A reset groove is provided on the inner wall of the through hole. The reset assembly is arranged in the reset groove. The reset block slides in the reset groove. Two ends of the second spring are respectively fixedly connected to the reset block and the inner wall of the reset groove. The reset block is fixedly connected to the side wall of the detection rod.
[0013] By adopting the above technical solution, when the detection rod is pushed by the bottom of the bottle, the movement of the detection rod drives the reset block to stretch the second spring and move. When the bottle body is taken off by the material taking mechanism after the bottle body is printed, the reset block on the detection rod drives the detection rod to move towards the feeding auxiliary abutting post direction and penetrate out of the detection disk under the elastic force of the second spring, facilitating the detection of the radius size of the bottom of the bottle next time.
[0014] Preferably, a telescopic rod is arranged in the lifting groove. Two ends of the telescopic rod are respectively fixedly connected to the inner wall of the lifting groove and the bottom wall of the lifting plate. The first spring is sleeved on the outer side wall of the telescopic rod.
[0015] By adopting the above technical solution, when the lifting plate moves, the telescopic rod can enhance the buffering effect on the lifting plate and reduce the possibility of the first spring being twisted in the horizontal direction.
[0016] Preferably, a heat preservation cover is fixedly arranged on the support frame. Closing doors are respectively arranged at two ends of the heat preservation cover. A sliding groove for the main feeding abutting post to pass through is provided on the side wall of the heat preservation cover. A plurality of high-temperature resistant isolation cloths are arranged on the inner wall of the sliding groove. The isolation cloth has good downward drapability. The heating device is in the middle of the heat preservation cover. The heat preservation cover is arc-shaped and extends along its arc to both ends close to the adjacent devices.
[0017] By adopting the above technical solution, the heat preservation cover can concentrate the heat generated by gas combustion relatively in the heat preservation cover, reducing energy waste. The heat in the heat preservation cover gradually decreases from the middle to both ends, and both the closing door and the isolation cloth can reduce the heat dissipation inside it; when the bottle body enters the heat preservation cover through the closing door, the main feeding abutment pushes open the isolation cloth and passes through the sliding groove. The air inside the heat preservation cover will conduct thermal radiation on the bottle body entering, and it gradually increases from low to high, so as to preheat the bottle body initially and avoid the bottle body from bursting due to sudden heating. The bottle body continues to move inside the heat preservation cover to the gas stove, where an open flame is used to further increase the temperature of the bottle body. At this time, lower gas consumption is required, saving energy.
[0018] Preferably, the closing door includes an upper door and a lower door. A guiding groove is formed on the side wall of the heat preservation cover. Guide blocks that slide in the guiding groove are fixedly connected to both the upper door and the lower door. Cylinders that drive themselves to move in the vertical direction are fixedly installed on the opposite side walls of the upper door and the lower door.
[0019] By adopting the above technical solution, when the feeding mechanism drives the bottle body to rotate to the heat preservation cover, the cylinders drive the upper door and the lower door to move away from each other to open the heat preservation cover for the bottle body to enter. When the bottle body is away from the port of the heat preservation cover, the closing door closes under the action of the cylinders, reducing the degree of internal diffusion and improving the heat preservation effect inside the heat preservation cover.
[0020] Preferably, a temperature sensor is fixedly installed inside the heat preservation cover. A conveying pipe for conveying gas is connected to the gas stove. A control valve is installed on the conveying pipe, and the temperature sensor controls the control valve.
[0021] By adopting the above technical solution, different materials of bottle bodies have different requirements for preheating temperatures. Therefore, by detecting the temperature change inside the heat preservation cover through the temperature sensor, the temperature sensor adjusts the amount of gas conveyed by the conveying pipe according to the internal temperature, controls the combustion degree, and further avoids the internal temperature from being too high.
[0022] Preferably, the heating device is a heating blower. The heating blower is arranged inside the heat preservation cover. The heating blower contains an electric heating wire and a fan. The energy source of the heating blower is electric energy, and the air outlet of the heating blower is located below the bottle body and is vertically upward.
[0023] By adopting the above technical solution, the heating blower replaces the gas stove and uses renewable electric energy instead of non-renewable natural gas, which can save energy.
[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. Under the action of the bottle body taking mechanism, the bottle body moves from the conveyor belt to the feeding mechanism, and the bottom of the bottle abuts against the main feeding abutting column. The suction cup on the main feeding abutting column can strengthen the connection with the bottle body. Subsequently, the rotating motor starts to drive the main feeding abutting column and the bottle body to rotate under the static electricity dust removal pipe. The static electricity dust removal pipe sprays gas containing ions towards the bottle body through the ventilation holes, so as to be able to remove static electricity on the surface of the bottle body without secondary pollution, with good dust removal effect, which is beneficial to subsequent ink printing. In addition, before printing, the bottle body is preheated by a heating device, which can enhance the adhesion of the ink and the drying effect, further improving the printing effect of the ink and enhancing the product quality; 2. When printing bottles with different diameters on this equipment, the lifting mechanism can adjust the height of the gas stove according to the diameter of the bottle body, so as to avoid the bottle body touching the gas stove too closely. At the same time, the gas stove is adjusted to an appropriate height so that the outer flame of the flame touches the surface of the bottle body, thereby being able to accelerate the preheating of the bottle body; 3. The heat preservation cover can relatively concentrate the heat generated by the combustion of gas in the heat preservation cover, reducing energy waste. The heat in the heat preservation cover gradually decreases from the middle to both ends. Both the closing door and the isolation cloth can reduce the heat dissipation inside it; when the bottle body enters the heat preservation cover through the closing door, the main feeding abutting column pushes open the isolation cloth and passes through the sliding groove. The air inside the heat preservation cover will conduct heat radiation on the bottle body, and gradually increases from low to high, so as to preheat the bottle body preliminarily, avoiding the bottle body from bursting due to sudden heating. The bottle body continues to move in the heat preservation cover to the gas stove, and the open flame is used to further increase the temperature of the bottle body. At this time, lower gas consumption is required, saving energy. Description of the Drawings
[0025] Figure 1 is a schematic diagram of the overall structure of the prior art.
[0026] Figure 2 is a schematic diagram of the structure highlighting the static electricity dust removal pipe in Embodiment 1 of the present application.
[0027] Figure 3 is a schematic diagram of the structure highlighting the detection rod in Embodiment 1 of the present application.
[0028] Figure 4 is a schematic diagram of the structure highlighting the first spring in Embodiment 1 of the present application.
[0029] Figure 5 is a schematic diagram of the structure highlighting the reset component in Embodiment 1 of the present application.
[0030] Figure 6 is a schematic diagram of the overall structure highlighting the heat preservation cover in Embodiment 2 of the present application.
[0031] Figure 7 is a schematic diagram of the structure highlighting the guide block in Embodiment 2 of the present application.
[0032] Description of the reference numerals: 1. Support frame; 11. Material taking mechanism; 12. Rotating mechanism; 121. Rotating disk; 13. Printing mechanism; 14. Curing mechanism; 3. Feeding mechanism; 31. Feeding auxiliary abutting column; 32. Feeding motor; 33. Feeding main abutting column; 4. Suction cup; 5. Connecting frame; 51. Electrostatic dust removal pipe; 52. Vent hole; 6. Heating device; 61. Lifting groove; 62. Lifting plate; 621. Inclined surface; 63. Gas stove; 64. Installation table; 65. Lifting assembly; 651. First spring; 652. Detection disk; 653. Detection rod; 67. Reset assembly; 671. Reset block; 672. Second spring; 673. Reset groove; 68. Telescopic rod; 7. Heat preservation cover; 71. Sealing door; 712. Upper door; 713. Lower door; 714. Cylinder; 715. Guide groove; 716. Guide block; 72. Sliding groove; 721. Isolation cloth; 74. Quantity control valve; 75. Delivery pipe; 8. Support rod. Detailed implementation mode
[0033] The following is a further detailed description of this application in conjunction with the attached Figures 1-7 drawings.
[0034] Embodiment 1 The embodiment of this application discloses a multi-color printing device for bottle bodies. As Figure 1 shown, it includes a support frame 1, a material taking mechanism 11, a feeding mechanism 3, a rotating mechanism 12, a printing mechanism 13 and a curing mechanism 14. The material taking mechanism 11 is arranged on the outer side of the upper end of the support frame 1, the rotating mechanism 12 is arranged in the middle of the upper end of the support frame 1, the rotating mechanism 12 includes a rotating disk 121, there are multiple feeding mechanisms 3, and the multiple feeding mechanisms 3 are annularly distributed on the outer side of the upper end of the rotating disk 121. The dust removal mechanism is arranged on one side of the upper end of the rotating mechanism 12, there are multiple printing mechanisms 13, and the multiple printing mechanisms 13 are annularly distributed on the side surface of the upper end of the rotating mechanism 12. The multiple curing mechanisms 14 are respectively arranged beside the multiple printing mechanisms 13. The rotating mechanism 12 rotates the bottle bodies in the feeding mechanism 3 on the rotating disk 121 one by one to the multiple printing mechanisms 13 and the curing mechanisms 14. By setting multiple printing mechanisms 13, various different colors can be printed on the workpieces, increasing the printing range and improving the printing effect. Setting the curing mechanism 14 can immediately dry the workpiece after printing a layer of pigment, avoiding affecting the next printing.
[0035] As Figure 1 and Figure 2As shown, the feeding mechanism 3 includes a feeding secondary abutting post 31, a feeding motor 32, and a feeding primary abutting post 33. The feeding motor 32 is fixedly welded to the feeding primary abutting post 33. The feeding primary abutting post 33 and the feeding secondary abutting post 31 respectively abut and fix the two ends of the bottle body. The feeding motor 32 can drive the feeding primary abutting post 33 to rotate, thereby driving the bottle body to rotate. A suction cup 4 is fixedly installed on the feeding primary abutting post 33. The bottom of the bottle body abuts and is adsorbed on the suction cup 4. Above the support frame 1 at the material taking mechanism 11, a support rod 8 is fixedly welded. A connecting frame 5 is fixedly welded on the support rod 8. The connecting frame 5 is located above the feeding mechanism 3. An electrostatic dust removal pipe 51 is fixedly arranged on the connecting frame 5. The electrostatic dust removal pipe 51 has a cylindrical appearance and is arranged horizontally. A plurality of ventilation holes 52 are opened horizontally on the circumferential side wall of the electrostatic dust removal pipe 51 close to the bottle body. A heating device 6 for preheating the bottle body is also arranged on the support frame 1.
[0036] As Figure 2 and Figure 3 shown, the heating device 6 includes a lifting plate 62 and a gas stove 63 fixed on the lifting plate 62. The support frame 1 is provided with a lifting groove 61 for the lifting plate 62 to slide vertically. An installation table 64 is fixedly welded on the side wall of the lifting plate 62. The gas stove 63 is installed on the installation table 64, and a delivery pipe 75 for delivering gas is connected to the gas stove 63. The gas in the gas stove 63 burns to preheat the bottle body. The heating device 6 also includes a lifting component 65 for adjusting the height of the gas stove 63 according to the diameter of the bottle body. The lifting component 65 includes a first spring 651, a detection disc 652, and a plurality of detection rods 653. The first spring 651 is arranged vertically in the lifting groove 61, and its two ends are respectively fixedly welded to the inner wall of the bottom of the lifting groove 61 and the bottom wall of the lifting plate 62. A telescopic rod 68 is arranged vertically in the lifting groove 61. The two ends of the telescopic rod 68 are respectively fixedly welded to the inner wall of the bottom of the lifting groove 61 and the bottom wall of the lifting plate 62. The first spring 651 is sleeved on the outer side wall of the telescopic rod 68. When the lifting plate 62 moves, the telescopic rod 68 can enhance the buffering effect on the lifting plate 62 and reduce the possibility of the first spring 651 moving in a non-vertical direction.
[0037] As Figure 2 and Figure 3As shown, the detection disc 652 is cylindrical, and its axis is horizontally arranged. One end face of the detection disc 652 is fixedly welded to the main feeding abutting column 33. The suction cup 4 is fixedly installed at the center of the end face of the detection disc 652 away from the main feeding abutting column 33. A plurality of detection rods 653 are arranged vertically downward in sequence directly below the suction cup 4. The detection rods 653 slide horizontally and pass through the detection disc 652. When the bottle body is placed in the feeding mechanism 3 by the material taking mechanism 11, the bottom of the bottle body abuts against the detection disc 652, and the suction cup 4 adsorbs at the center position of the bottom of the bottle. The center of the bottom of the bottle body and the center of the detection disc 652 are on the same straight line. The detection rods 653 within the radius range of the bottom of the bottle will be pushed by the bottom of the bottle and move horizontally towards the end face of the detection disc 652 away from the bottle body. One side of the top of the lifting plate 62 is provided with an inclined surface 621. The detection rods 653 follow the feeding mechanism 3 and move to abut against the inclined surface 621, and through the inclined surface 621, the lifting plate 62 compresses the first spring 651 and moves downward until the lowest end of all the protruding detection rods 653 on the end face of the detection disc 652 away from the bottle body abuts against the top of the lifting plate 62. At this time, the highest position of the lifting plate 62 is approximately at the lowest position of the bottom of the bottle. At this time, the distance between the gas stove 63 on the lifting plate 62 and the bottle body is the optimal distance, and the outer flame of the gas flame can preheat the bottle body.
[0038] As Figure 4 shown, a plurality of reset components 67 for resetting the detection rods 653 are arranged in the detection disc 652. The reset components 67 include second springs 672 and reset blocks 671. A plurality of through holes respectively for the plurality of detection rods 653 to pass through are horizontally formed in the detection disc 652. A reset groove 673 is formed in the inner wall of the through hole. The reset components 67 are arranged in the reset groove 673. The reset blocks 671 slide horizontally in the reset groove 673. The second springs 672 are horizontally arranged in the reset groove 673, and both ends of each second spring 672 are fixedly welded to the reset block 671 and the inner wall of the reset groove 673 respectively. The reset blocks 671 are fixedly welded to the side walls of the detection rods 653. When the detection rods 653 are pushed by the bottom of the bottle, the movement of the detection rods 653 drives the reset blocks 671 to stretch the second springs 672 and move. When the bottle body is taken off by the material taking mechanism 11 after the printing of the bottle body is completed, the reset blocks 671 on the detection rods 653 drive the detection rods 653 to move towards the feeding auxiliary abutting column 31 and pass through the detection disc 652 under the elastic force of the second springs 672, facilitating the detection of the radius size of the bottom of the bottle for the next time.
[0039] The implementation principle of the first embodiment of this application is as follows: Under the action of the bottle body picking mechanism 11, the bottle body is sent from the conveyor belt to the feeding mechanism 3. The bottle body is horizontally placed between the main feeding abutting column 33 and the auxiliary feeding abutting column 31, and the bottom of the bottle abuts against the main feeding abutting column 33. The suction cup 4 on the main feeding abutting column 33 can strengthen the connection of the bottle body, avoiding the possibility of the bottle body separating and falling from the main feeding abutting column 33 when the bottle body rotates. After the bottle body is placed on the feeding mechanism 3, the rotation motor starts to drive the main feeding abutting column 33 and the bottle body to rotate together under the static electricity dust removal tube 51. The static electricity dust removal tube 51 sprays gas containing ions towards the bottle body through the ventilation holes 52, so as to be able to remove static electricity on the surface of the bottle body without secondary pollution, with good dust removal effect and being beneficial to subsequent ink printing. In addition, before printing, the bottle body is preheated by the heating device 6, which can enhance the adhesion and drying effect of the ink, further improving the printing effect of the ink and enhancing the product quality. When the picking mechanism 11 abuts the bottom of the bottle body against the detection disc 652, the bottom of the bottle can push the detection rod 653 at the corresponding position on the detection disc 652 to move until the end away from the bottle body penetrates the detection disc 652. The detection rod 653 pushed out at the edge position of the bottom of the bottle is at the lowest end among the pushed-out detection rods 653. When the feeding mechanism 3 transports the bottle body to the heating device 6, the pushed-out detection rod 653 abuts against the inclined surface 621 of the lifting plate 62, and pushes the lifting plate 62 downward through the inclined surface 621 to compress the first spring 651 and move. The stiffness of the lifting plate 62 depends on the position of the lowest pushed-out detection rod 653. The movement of the lifting plate 62 drives the mounting table 64 and the gas stove 63 thereon to move, so that the height of the gas stove 63 can be adjusted according to the diameter of the bottle body, thus avoiding the bottle body touching the gas stove 63 when it is too close to the gas stove 63, and at the same time adjusting the gas stove 63 to a proper height so that the outer flame of the flame touches the surface of the bottle body, thereby improving the preheating efficiency of the bottle body. The preheating of the bottle body can enhance the adhesion and drying effect of the ink, further improving the printing effect of the ink and enhancing the product quality.
[0040] Embodiment 2 As Figure 4As shown in the figure, the difference between the second embodiment and the first embodiment is that the support frame 1 is provided with a heat insulation cover 7 for reducing the heat dissipation of the heating device 6. The heat insulation cover 7 is fixedly welded to the support frame 1. The heat insulation cover 7 is arranged in an arc shape according to the radian of the support frame 1, and the heating device 6 is arranged in the heat insulation cover 7. Sealing doors 71 are respectively arranged at both ends of the heat insulation cover 7. A sliding groove 72 for the main feeding abutting column 33 to pass through is formed in the side wall of the heat insulation cover 7. A plurality of high-temperature resistant isolation cloths 721 are arranged on the inner wall of the sliding groove 72. The isolation cloth 721 has a good downward draping feeling. The top of the isolation cloth 721 is fixedly adhered to the inner wall of the top of the sliding groove 72, and the bottom of the isolation cloth 721 automatically hangs down to the inner wall of the bottom of the sliding groove 72. The sealing door 71 includes an upper door 712 and a lower door 713. The upper door 712 and the lower door 713 slide away from or towards each other in the vertical direction on the end face of the heat insulation cover 7. A guiding groove 715 is formed in the side wall of the heat insulation cover 7 in the vertical direction. Guide blocks 716 that slide in the guiding groove 715 are fixedly welded to the side walls of the upper door 712 and the lower door 713. Cylinders 714 for driving themselves to move in the vertical direction are fixedly installed on the opposite side walls of the upper door 712 and the lower door 713. A temperature sensor is fixedly installed in the heat insulation cover 7. A control valve 74 is installed on the gas delivery pipe 75 for delivering gas, and the temperature sensor controls the control valve 74.
[0041] The implementation principle of the second embodiment of the present application is as follows: The heat insulation cover 7 can relatively concentrate the heat generated by the combustion of gas in the heat insulation cover 7, reducing energy waste. The heat inside the heat insulation cover 7 gradually decreases from the middle to both ends. Both the sealing door 71 and the isolation cloth 721 can reduce the heat dissipation inside it. When the feeding mechanism 3 drives the bottle body to rotate to the heat insulation cover 7, the cylinder 714 drives the upper door 712 and the lower door 713 to move away from each other to open the heat insulation cover 7 to facilitate the bottle body to enter the heat insulation cover 7. When the bottle body is far away from the port of the heat insulation cover 7, the sealing door 71 closes under the action of the cylinder 714, reducing the degree of internal diffusion and improving the heat insulation effect inside the heat insulation cover 7. When the bottle body moves in the heat insulation cover 7, the main feeding abutting column 33 pushes open the isolation cloth 721 and passes through the sliding groove 72. The air inside the heat insulation cover 7 will conduct thermal radiation on the bottle body entering, and it gradually increases from low to high, gradually preheating the bottle body initially, avoiding the possibility of the bottle body bursting due to sudden heating. When the bottle body has a low requirement for the preheating temperature, at this time, the bottle body can achieve the preheating effect through the heat insulation cover 7. At this time, only the gas stove 63 needs to burn with low energy to supply heat, and there is no need to repeatedly open the gas hood, wasting energy. If the preheating temperature inside the heat insulation cover 7 cannot be reached, the bottle body moves to the gas stove 63 in the heat insulation cover 7 and rotates to use open fire to further increase the temperature of the bottle body. At this time, there is also no need to repeatedly open the gas hood to cause energy waste, saving energy. The temperature sensor detects the temperature change inside the heat insulation cover 7 and regulates the amount of gas delivered by the delivery pipe 75 according to the internal temperature, controlling the combustion degree, thereby avoiding the internal temperature being too high or excessive energy consumption.
[0042] Embodiment Three As Figure 5 shown, in the second embodiment, on the basis of the second embodiment, the preheating of the gas stove 63 in the heating device 6 is changed to a heating fan. The heating fan contains an electric heating wire and a fan. The air outlet of the heating fan is located below the bottle body and is vertically upward, and the internal fan can blow the heat generated by the electric heating wire towards the bottle body and the heat preservation cover 7.
[0043] The principle of the third embodiment of the present application is as follows: The energy source of the heating fan is electricity. Using the heating fan to replace the gas stove 63 can replace non-renewable natural gas with renewable electricity, which can save energy.
[0044] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.
Claims
1. A multi-color printing device for a bottle, comprising a support frame (1), a material taking mechanism (11), a feeding mechanism (3), a rotating mechanism (12), a printing mechanism (13) and a curing mechanism (14), wherein the feeding mechanism (3) comprises a feeding auxiliary support column (31), a feeding motor (32) and a feeding main support column (33), wherein the feeding motor (32) is fixedly connected to the feeding main support column (33); characterized in that: A suction cup (4) is fixedly mounted on the main feeding abutment column (33), and the suction cup (4) abuts against the bottom of the bottle body. A support rod (8) is arranged above the support frame (1) at the material taking mechanism (11), and a connecting frame (5) is fixedly connected to the support rod (8). An electrostatic precipitator tube (51) is fixedly arranged on the connecting frame (5), and a plurality of ventilation holes (52) are provided on the side wall of the electrostatic precipitator tube (51). A heating device (6) for preheating the bottle body is also arranged on the support frame (1).
2. A multi-color bottle printing device according to claim 1, characterized in that: The heating device (6) comprises a lifting plate (62) and a gas stove (63) fixed on the lifting plate (62), wherein gas in the gas stove (63) burns to preheat the bottle body; the heating device (6) also comprises a lifting component (65) for adjusting the height of the gas stove (63) according to the diameter of the bottle body.
3. A multi-color bottle printing device according to claim 2, characterized in that: The lifting assembly (65) comprises a first spring (651), a detection disc (652) and a plurality of detection rods (653); the detection disc (652) is fixedly connected to the main feeding column (33); the suction cup (4) is fixedly installed at the center of the detection disc (652); the plurality of detection rods (653) are located below the suction cup (4) and are arranged in sequence along the vertical diameter; the detection rods (653) are slidably arranged in the detection disc (652); the bottle body abuts against the detection disc (652) and the detection rods (653); a spring for making the detection disc (652) and the detection disc (652) move upward; the detection disc (652) is provided with a spring for making the detection rods (653 ... The reset component (67) for resetting the detection rod (653); the support frame (1) is provided with a lifting groove (61) for the lifting plate (62) to slide; the first spring (651) is arranged in the lifting groove (61) and its two ends are respectively fixedly connected to the inner wall of the lifting groove (61) and the bottom of the lifting plate (62); the top of the lifting plate (62) is provided with an inclined surface (621), the detection rod (653) abuts against the inclined surface (621), the side wall of the lifting plate (62) is fixedly connected with a mounting platform (64), and the gas stove (63) is installed on the mounting platform (64).
4. A multi-color bottle printing device according to claim 3, characterized in that: The reset component (67) includes a second spring (672) and a reset block (671). The detection disk (652) is provided with a plurality of through holes for the plurality of detection rods (653) to pass through respectively. The inner wall of the through hole is provided with a reset groove (673). The reset component (67) is arranged in the reset groove (673). The reset block (671) slides in the reset groove (673). The two ends of the second spring (672) are respectively fixedly connected to the reset block (671) and the inner wall of the reset groove (673). The reset block (671) is fixedly connected to the side wall of the detection rod (653).
5. The multi-color printing device for bottles according to claim 3, characterized in that: A telescopic rod (68) is arranged in the lifting groove (61), and two ends of the telescopic rod (68) are respectively fixedly connected to the inner wall of the lifting groove (61) and the bottom wall of the lifting plate (62), and the first spring is sleeved on the outer wall of the telescopic rod (68).
6. The multi-color printing device for bottles according to claim 2, characterized in that: A heat-insulating cover (7) is fixedly arranged on the support frame (1), and closed doors (71) are respectively arranged at both ends of the heat-insulating cover (7). A slide groove (72) for the main feeding support column (33) to pass through is opened on the side wall of the heat-insulating cover (7), and a plurality of high-temperature resistant insulating cloths (721) are arranged on the inner wall of the slide groove (72), and the insulating cloths (721) have a strong downward drooping feeling. The heating device (6) is located in the middle part of the heat-insulating cover (7), and the heat-insulating cover (7) is in an arc shape and extends along its arc to both ends to approach adjacent devices.
7. A multi-color printing device for bottles according to claim 6, characterized in that: The closed door (71) comprises an upper door (712) and a lower door (713); a guide groove (715) is provided on the side wall of the heat-insulating cover (7); a guide block (716) which slides in the guide groove (715) is fixedly connected to the upper door (712) and the lower door (713); and a cylinder (714) which drives the upper door (712) and the lower door (713) to move in a vertical direction is fixedly installed on the opposite side walls of the upper door (712) and the lower door (713).
8. The multi-color printing device for bottles according to claim 1, characterized in that: A temperature sensor is fixedly installed in the heat-insulating cover (7); a delivery pipe (75) for delivering gas is connected to the gas stove (63); a quantity control valve (74) is installed on the delivery pipe (75); and the temperature sensor controls the quantity control valve (74).
9. The multi-color printing device for bottles according to claim 1, characterized in that: The heating device (6) is a heating fan, which is arranged in the heat preservation cover (7). The heating fan contains a heating wire and a fan. The energy of the heating fan comes from electrical energy. The air outlet of the heating fan is located below the bottle body and vertically upward.