Full-automatic gilding press for processing plastic cups

Abstract

The invention provides a full-automatic gilding press for processing plastic cups, and belongs to the technical field of plastic cup processing and manufacturing. The full-automatic gilding press for processing the plastic cups comprises a stand column, a lifting seat, a printing mechanism capable of loading the plastic cups, a thermoprinting mechanism for pressing a thermal transfer film on the plastic cups and an automatic feeding mechanism for discharging materials to the printing mechanism, and the printing mechanism comprises a printing tray, an adjusting square column, a rotating shaft, a blowing air pipe and a positioning rubber sleeve. The front end of the rotating shaft is coaxially fixed to the printing material disc, a material changing motor is fixed to the rear end of the adjusting square column and is in power connection with the rear end of the rotating shaft through a gear set, a plurality of material blowing air pipes are evenly arranged on the printing material disc in a penetrating mode in the circumferential direction, and positioning rubber sleeves capable of being clamped with plastic cups are arranged outside the material blowing air pipes in a sleeving mode and are rotationally connected with the material blowing air pipes. An air outlet pump capable of being in butt joint with the blowing air pipe to supply air is further fixed to one side of the adjusting square column. And after the printing tray rotates, the blowing air pipe is in butt joint with the air outlet pump, so that the plastic cups subjected to gold stamping on the printing tray can be easily blown off, and automatic discharging is completed.

Description

Technical Field

[0001] The invention belongs to the technical field of plastic cup processing and manufacturing, and relates to a full-automatic hot stamping machine for processing plastic cups. Background Art

[0002] Hot stamping machine is also called heat transfer machine. Hot stamping is a common surface treatment process. Any picture is printed on ordinary paper or high-precision printing paper using heat transfer ink, and then heated to a certain temperature in a few minutes by the hot stamping machine. The image on the paper is transferred to porcelain cups, porcelain plates, porcelain boards, clothes, metals and other materials with realistic colors. It is a special process. The cup surface of a plastic cup is usually a regular ring surface. By hot stamping a circle of metal foil or other materials on the surface of the cup, the cup is made more beautiful and delicate. Most of the existing hot stamping machines are manually loaded. When workers put the cup, their hands are likely to touch the high-temperature transfer rubber roller or transfer plate, causing scalding accidents. For convenience and safety, people have designed hot stamping machines for bottles or cups that can be automatically loaded.

[0003] For example, the utility model patent with the patent number [201921143163.X] published by China discloses an improved structure for automatic feeding of bottles in a thermal transfer machine, including a box, a reduction box, a large rotary arm, a small rotary arm, a finger cylinder, a connecting plate, a small rotary arm driving mechanism and a feeding belt. The large rotary arm is connected to the reduction box, the small rotary arm is movably arranged at the end of the large rotary arm, the finger cylinder is fixed on the small rotary arm, and the small rotary arm is movably connected to the small rotary arm driving mechanism through the connecting plate. The small rotary arm driving mechanism includes a driving motor, a transmission screw and a vertical guide rail; the large rotary arm rotates to drive the small rotary arm to move and grab the bottle body to complete automatic feeding without manual operation. However, this feeding method only grabs the bottle body in the silo by a mechanical claw and places it on the feeding belt, and transports it forward along the conveyor belt, and cannot complete the installation of the bottle body on the thermal transfer machine.

[0004] Another example is the utility model patent with the patent number [CN202323058047.7] published by China, which discloses a fully automatic vertical rotary screen printing machine, including a frame connected to the ground and a loading conveyor belt and a unloading conveyor belt arranged on the frame, a material tray arranged on the frame, and a plurality of connecting columns for setting the substrate are arranged on the surface of the material tray at equal intervals; a synchronous loading and unloading assembly is arranged on the frame, which is used to load the substrate on the loading conveyor belt onto the material tray and unload the substrate on the material tray onto the unloading conveyor belt; a moving part is arranged on the synchronous loading and unloading assembly, which is used to press the substrate tightly against the surface of the material tray; an electric slide is arranged on the frame, and the whole is arranged horizontally. The can body or cup body is mainly grasped by the adsorption of a pneumatic suction cup, and after grasping, it is rotated 90° to put the substrate on the material tray. When unloading, it is first adsorbed and then rotated 90° to put it back on the conveyor belt. This method of loading and unloading has many steps and is slow, resulting in low production efficiency. Summary of the invention

[0005] The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose a fully automatic hot stamping machine for processing plastic cups. The printing mechanism is equipped with a blowing air pipe. After the printing material tray rotates, the blowing air pipe is connected to the air outlet pump, so that the plastic cups with hot stamping on the printing material tray can be easily blown off to complete automatic unloading.

[0006] The purpose of the present invention can be achieved through the following technical solutions: a fully automatic hot stamping machine for processing plastic cups, comprising a column, a lifting seat, a film-retracting and releasing mechanism for orderly retracting and releasing heat transfer film, a printing mechanism that can load plastic cups, a hot stamping mechanism that presses the heat transfer film onto the plastic cup, and an automatic feeding mechanism for feeding materials to the printing mechanism, characterized in that a vertical sliding hole is opened on the column, one end of the lifting seat is embedded in the vertical sliding hole and lifts up and down along the vertical sliding hole, a screw rod is passed through the vertical sliding hole, the screw rod passes through the lifting seat and is threadedly connected to the lifting seat, an adjustment handle is fixed to the upper end of the screw rod after passing through the column, a lifting cylinder is fixed on the lifting seat, the lower end of the telescopic rod of the lifting cylinder is connected to the lifting plate, and the hot stamping machine The structure and the film retracting and releasing mechanism are fixed on the lifting plate, and the printing mechanism includes a printing material tray, an adjusting square column, a rotating shaft, a blowing air pipe and a positioning rubber sleeve. A transverse sliding hole is opened in the middle of the column, the adjusting square column is inserted in the transverse sliding hole and slides with the column, the rotating shaft penetrates the adjusting square column along the length direction of the adjusting square column, the front end of the rotating shaft is coaxially fixed with the printing material tray, and a material changing motor is fixed to the rear end of the adjusting square column. The material changing motor is connected to the rear end of the rotating shaft through a gear set. A number of blowing air pipes are evenly arranged on the printing material tray in a circumferential direction, and a positioning rubber sleeve that can be clamped with a plastic cup is sleeved on the outside of the blowing air pipe and is rotatably connected to the blowing air pipe. An air outlet pump that can connect with the blowing air pipe to deliver air is also fixed on one side of the adjusting square column.

[0007] The automatic loading mechanism loads the plastic cups one by one onto the positioning rubber sleeve of the printing material tray, the lifting cylinder drives the hot stamping mechanism to descend, and presses the thermal transfer film on the film retracting and releasing mechanism onto the cup surface of the plastic cup. After the transfer is completed, the lifting cylinder drives the hot stamping mechanism to rise, and then the material changing motor drives the printing material tray to rotate, and the plastic cups to be unloaded are transferred to the work station corresponding to the air outlet pump. The air outlet pump is connected to the blowing air pipe to blow the plastic cups off, realizing automatic unloading.

[0008] Furthermore, a circular groove is formed on the back of the printing material tray, the air inlet of the blowing air pipe is located in the circular groove, an air supply pipe is slidably sleeved on the air outlet pipe of the air outlet pump, the front end of the air supply pipe rests in the circular groove, the rear end of the air supply pipe has a horizontally extended baffle, a spring is sleeved on the air outlet pipe, one end of the spring rests on the baffle, and the other end of the spring rests on the air outlet pump. After the printing material tray rotates a certain angle, the air supply pipe can be connected with the air inlet of the blowing air pipe.

[0009] Due to the elastic force of the spring, the air supply pipe slides along the air outlet pipe toward the annular groove, so that the air supply pipe is firmly against the bottom of the annular groove. When the substrate tray rotates, the annular groove rotates relative to the air supply pipe, so that the blowing air pipe to be unloaded is aligned with the air supply pipe. Under the thrust of the spring, the sealing between the air supply pipe and the blowing air pipe is improved.

[0010] Furthermore, an adjusting cylinder is fixed on the upright column, a push-pull plate is fixed on the rear end of the adjusting square column, and the telescopic rod of the adjusting cylinder is fixed to the push-pull plate. When the adjusting cylinder is started, the push-pull plate and the adjusting square column can be pushed forward and backward to facilitate the adjustment of the front and rear positions of the substrate tray and the plastic cup, so that the thermal transfer film can fall on any position of the cup surface, such as the cup mouth, the middle of the cup body or the lower end of the cup body, and the transfer position can be freely adjusted according to needs.

[0011] Furthermore, the automatic feeding mechanism includes a feeding platform, a conveyor belt, a material storage box, a material receiving box and a feeding cylinder. The conveyor belt is embedded in the feeding platform and is lower than the upper end surface of the feeding platform. The material storage box is fixed at the upper end of the feeding platform and is located above the conveyor belt. The material receiving box is arranged inside the feeding platform. A sliding bucket for guiding the plastic cup into the material receiving box is arranged at the tail end of the feeding platform. The bottom of the material storage box is open and a material outlet is arranged on the side of the lower end. A material baffle plate facing the material outlet is fixed on the feeding platform, and the feeding cylinder is fixed at the outer end of the material baffle plate. The plastic cup is pressed against the material baffle plate under the drive of the conveyor belt, and the feeding cylinder is started to push the plastic cup onto the positioning rubber sleeve.

[0012] Furthermore, a plurality of staggered inclined partitions are provided in the storage box, a guide plate is fixed on the inner side of the loading platform, the guide plate is directly opposite to the loading cylinder, and the loading cylinder pushes the plastic cup to slide along the guide plate onto the positioning rubber sleeve. The plastic cups can slide along the inclined partitions to the bottom of the storage box one by one, and finally fall on the conveyor belt, and are taken out of the discharge port by the conveyor belt until they abut against the baffle plate. The provision of the guide plate can make it easier and more accurate for the plastic cup to be put on the positioning rubber sleeve.

[0013] Furthermore, a material receiving fence is fixed on the loading platform, one side of which is open and faces the air outlet pump, and a receiving plate located in front of the opening is fixed on the side of the loading platform. When the hot stamping is completed, the printing material tray rotates the plastic cup to the material receiving fence, and the air outlet pump delivers gas, which is sent into the plastic cup through the blowing air pipe. Since the mouth of the plastic cup is clamped with the positioning rubber sleeve, the air pressure inside the plastic cup gradually increases until the plastic cup is ejected, separated from the positioning rubber sleeve, and flies into the material receiving fence under the support of the receiving plate, and is transported forward by the conveyor belt, and finally the plastic cup falls from the slide bucket into the material receiving box.

[0014] Furthermore, the film collecting and releasing mechanism includes a crossbeam, a film collecting roller, a film releasing roller, a film collecting motor and a film releasing motor. The crossbeam is fixed on one side of the lifting plate, the film releasing roller is rotatably connected to one end of the crossbeam, and the film collecting roller is rotatably connected to the other end of the crossbeam. Both the film collecting motor and the film releasing motor are fixed on the crossbeam. The film collecting motor drives the film collecting roller to rotate, and the film releasing motor drives the film releasing roller to rotate.

[0015] Furthermore, the hot stamping mechanism includes a hot stamping mounting plate, a thermal insulation cover, a heating rubber roller, a rubber roller motor and an electric heating tube. The hot stamping mounting plate is fixed to the lower end of the lifting plate, the thermal insulation cover is fixed to the lower end of the hot stamping mounting plate, the heating rubber roller is rotatably connected to the hot stamping mounting plate and is located inside the thermal insulation cover, the electric heating tube is fixed on the inner wall of the thermal insulation cover, and the rubber roller motor is fixed to one side of the hot stamping mounting plate and drives the heating rubber roller to rotate through a pulley assembly.

[0016] The thermal transfer film roll is put on the film-releasing roller, and the other end is taken up by the film-receiving roller. The middle part is located between the heating rubber roller and the positioning rubber sleeve. The plastic cup is tightly put on the positioning rubber sleeve. The electric heating tube is started to increase the temperature of the heating rubber roller. The lifting cylinder is started to drive the lifting plate down, so that the heating rubber roller presses the thermal transfer film on the cup surface of the plastic cup. At the same time, the rubber roller motor, film-receiving motor and film-releasing motor are started. The heating rubber roller transfers the pattern on the thermal transfer film to the cup surface and drives the plastic cup and the positioning rubber sleeve to rotate around the blowing air pipe. After the transfer is completed, the lifting cylinder drives the lifting plate to rise, and at the same time turns off the rubber roller motor, film-receiving motor and film-releasing motor. At this time, the plastic cup has completed the transfer, and the material changing motor is started to drive the rotating shaft and the printing material tray to rotate a certain angle, so that the next plastic cup to be hot stamped rotates to the bottom of the heating rubber roller, and the lifting cylinder, rubber roller motor, film-receiving motor and film-releasing motor are started to repeat the transfer action.

[0017] Furthermore, a sleeve is fixed on the lifting seat, and a guide column that slides with the sleeve is fixed on the lifting plate. The sleeve and the guide column are matched to make the lifting plate move up and down more smoothly and easily controlled, and the pressure of the heated rubber roller on the plastic cup can be accurately controlled.

[0018] Furthermore, the positioning rubber sleeve is in the shape of a truncated cone with an outer diameter gradually increasing from front to back, the tail of the positioning rubber sleeve has an unfolded sealing convex edge, the front end outer surface of the blowing air pipe has an external thread, and a retaining ring is threadedly connected to the front end of the blowing air pipe, and the retaining ring is in abutment with the front end of the positioning rubber sleeve. The plastic cup is inserted into the positioning rubber sleeve, and the cup mouth of the plastic cup is in abutment with the sealing convex edge. At the same time, the outer peripheral wall of the positioning rubber sleeve supports the cup mouth, thereby improving the sealing effect, and the air inside the plastic cup is not easy to leak. When unloading, air is injected into the blowing air pipe, and the internal air pressure is more likely to increase quickly, so that it is blown off from the positioning rubber sleeve faster and popped out more forcefully. The retaining ring is used to block the positioning rubber sleeve to prevent the positioning rubber sleeve from moving axially and detaching from the blowing air pipe.

[0019] Compared with the existing technology, this fully automatic hot stamping machine for processing plastic cups has the following advantages:

[0020] 1. It has an adjustable square column that can slide forward and backward along the horizontal sliding hole of the column. The adjusting cylinder drives the adjusting square column to move, which is convenient for adjusting the front and rear positions of the substrate tray and the plastic cup, so that the thermal transfer film can fall on any position of the cup surface, which can be the cup mouth, the middle of the cup body or the lower end of the cup body. The position of the thermal transfer film transferred on the cup surface can be freely adjusted according to needs.

[0021] 2. It has an automatic feeding mechanism, which can quickly and accurately push the plastic cups sent out from the storage box to the printing material tray one by one using the feeding cylinder.

[0022] 3. An air outlet pump is fixed on the adjusting square column. When the plastic cup after hot stamping is transferred to the unloading station along with the substrate tray, the air supply pipe of the air outlet pump is connected with the blowing air pipe to blow the plastic cup off the positioning rubber sleeve to realize automatic unloading.

[0023] 4. Whether loading or unloading, the movements are simple, neat and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the front structure of the fully automatic hot stamping machine for processing plastic cups.

[0025] Figure 2 This is the back structure diagram of the fully automatic hot stamping machine for processing plastic cups Figure 1 .

[0026] Figure 3 This is the back structure diagram of the fully automatic hot stamping machine for processing plastic cups Figure 2 .

[0027] Figure 4 It is a cross-sectional view of the fully automatic hot stamping machine for processing plastic cups.

[0028] Figure 5 It is a schematic diagram of the structure of the printing material tray and the air outlet pump.

[0029] Figure 6 It is a transverse cross-sectional view of the printing material tray and the air outlet pump.

[0030] Figure 7 It is a structural diagram of the automatic feeding mechanism.

[0031] Figure 8 It is a cross-sectional structural diagram of the automatic feeding mechanism.

[0032] In the figure, 1, column; 11, vertical slide hole; 12, screw rod; 13, adjustment handle; 14, horizontal slide hole; 15, adjustment cylinder; 16, push-pull plate; 2, film retracting and releasing mechanism; 21, crossbeam; 22, film retracting roller; 23, film releasing roller; 24, film retracting motor; 25, film releasing motor; 3, printing mechanism; 31, printing material tray; 311, circular groove; 32, adjustment square column; 33, rotating shaft; 34, blowing air pipe; 35, positioning rubber sleeve; 351, sealing convex edge; 352, retaining ring; 36, material changing motor; 37, gear set; 38, air outlet pump; 39, air supply Take over; 391, stop edge; 392, spring; 4, hot stamping mechanism; 41, hot stamping mounting plate; 42, heat preservation cover; 43, heating rubber roller; 44, rubber roller motor; 45, electric heating tube; 5, automatic feeding mechanism; 51, feeding stand; 52, conveyor belt; 53, storage box; 54, receiving box; 55, feeding cylinder; 56, slide bucket; 57, baffle plate; 58, inclined partition; 59, guide plate; 510, receiving fence; 511, receiving plate; 6, lifting seat; 61, lifting cylinder; 62, lifting plate; 63, sleeve; 64, guide column; 7, plastic cup. DETAILED DESCRIPTION

[0033] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0034] like Figure 1-3As shown, the fully automatic hot stamping machine for processing plastic cups includes a column 1, a lifting seat 6, a film-retracting and releasing mechanism 2 for orderly retracting and releasing the thermal transfer film, a printing mechanism 3 that can load the plastic cup 7, a hot stamping mechanism 4 that presses the thermal transfer film onto the plastic cup 7, and an automatic feeding mechanism 5 that feeds the material to the printing mechanism 3. A vertical slide hole 11 is provided on the column 1, one end of the lifting seat 6 is embedded in the vertical slide hole 11 and lifts up and down along the vertical slide hole 11, a screw rod 12 is passed through the vertical slide hole 11, the screw rod 12 passes through the lifting seat 6 and is threadedly connected to the lifting seat 6, and an adjustment handle 13 is fixed to the upper end of the screw rod 12 after passing through the column 1, a lifting cylinder 61 is fixed on the lifting seat 6, and a lifting plate 62 is connected to the lower end of the telescopic rod of the lifting cylinder 61, the hot stamping mechanism 4 and the film retracting mechanism 2 are both fixed on the lifting plate 62, the printing mechanism 3 includes a printing material tray 31, an adjusting square column 32, a rotating shaft 33, a blowing air pipe 34 and a positioning rubber sleeve 35, and a horizontal The adjusting square column 32 is inserted into the horizontal sliding hole 14 and slides with the column 1. The rotating shaft 33 penetrates the adjusting square column 32 along the length direction of the adjusting square column 32. The front end of the rotating shaft 33 is coaxially fixed with the printing material tray 31. A material changing motor 36 is fixed to the rear end of the adjusting square column 32. The material changing motor 36 is connected to the rear end of the rotating shaft 33 through a gear set 37. Eight blowing air pipes 34 are evenly inserted on the printing material tray 31 in the circumferential direction. A positioning rubber sleeve 35 that can be clamped with the plastic cup 7 is sleeved on the outside of the blowing air pipe 34 and is rotatably connected to the blowing air pipe 34. An air outlet pump 38 that can connect with the blowing air pipe 34 to deliver air is also fixed on one side of the adjusting square column 32.

[0035] The height of the lifting seat 6 can be adjusted by rotating the adjustment handle 13 to drive the screw rod 12 to rotate. The rotating shaft 33 rotates relative to the adjustment square column 32 in the circumferential direction and is fixed relative to the adjustment square column 32 in the axial direction. The automatic feeding mechanism 5 loads the plastic cups 7 one by one onto the positioning rubber sleeve 35 of the printing material tray 31, and the lifting cylinder 61 drives the hot stamping mechanism 4 to descend, and presses the thermal transfer film on the film retracting mechanism 2 onto the cup surface of the plastic cup 7. After the transfer is completed, the lifting cylinder 61 drives the hot stamping mechanism 4 to rise, and then the material changing motor 36 drives the printing material tray 31 to rotate, and the plastic cup 7 to be unloaded is transferred to the work station corresponding to the air outlet pump 38. The air outlet pump 38 is connected to the blowing air pipe 34 to blow the plastic cup 7 off, realizing automatic unloading.

[0036] The column 1 is fixed with an adjusting cylinder 15, and the rear end of the adjusting square column 32 is fixed with a push-pull plate 16, and the telescopic rod of the adjusting cylinder 15 is fixed to the push-pull plate 16. When the adjusting cylinder 15 is started, the push-pull plate 16 and the adjusting square column 32 can be pushed to move forward and backward, so as to facilitate the adjustment of the front and rear positions of the substrate tray 31 and the plastic cup 7, so that the thermal transfer film can fall on any position of the cup surface, such as the cup mouth, the middle of the cup body or the lower end of the cup body, and the transfer position can be freely adjusted according to the needs.

[0037] The film retracting and unwinding mechanism 2 includes a crossbeam 21, a film retracting roller 22, a film unwinding roller 23, a film retracting motor 24 and a film unwinding motor 25. The crossbeam 21 is fixed on one side of the lifting plate 62, the film unwinding roller 23 is rotatably connected to one end of the crossbeam 21, and the film retracting roller 22 is rotatably connected to the other end of the crossbeam 21. The film retracting motor 24 and the film unwinding motor 25 are both fixed on the crossbeam 21. The film retracting motor 24 drives the film retracting roller 22 to rotate, and the film unwinding motor 25 drives the film unwinding roller 23 to rotate.

[0038] The hot stamping mechanism 4 includes a hot stamping mounting plate 41, a heat preservation cover 42, a heating rubber roller 43, a rubber roller motor 44 and an electric heating tube 45. The hot stamping mounting plate 41 is fixed to the lower end of the lifting plate 62, the heat preservation cover 42 is fixed to the lower end of the hot stamping mounting plate 41, the heating rubber roller 43 is rotatably connected to the hot stamping mounting plate 41 and is located in the heat preservation cover 42, the electric heating tube 45 is fixed on the inner wall of the heat preservation cover 42, and the rubber roller motor 44 is fixed to one side of the hot stamping mounting plate 41 and drives the heating rubber roller 43 to rotate through a pulley assembly.

[0039] The thermal transfer film roll is sleeved on the film-releasing roller 23, and the other end is reeled up by the film-receiving roller 22. The middle part is located between the heating rubber roller 43 and the positioning rubber sleeve 35. The plastic cup 7 is tightly sleeved on the positioning rubber sleeve 35. The electric heating tube 45 is started to increase the temperature of the heating rubber roller 43. The lifting cylinder 61 is started to drive the lifting plate 62 to descend, so that the heating rubber roller 43 presses the thermal transfer film on the cup surface of the plastic cup 7. At the same time, the rubber roller motor 44, the film-receiving motor 24 and the film-releasing motor 25 are started. The heating rubber roller 43 transfers the pattern on the thermal transfer film to the cup surface and drives the plastic cup 7 and the positioning rubber sleeve 35 to rotate around the blowing air pipe 34. After the transfer is completed, the lifting cylinder 61 drives the lifting plate 62 to rise, and at the same time, the rubber roller motor 44, the film-receiving motor 24 and the film-releasing motor 25 are turned off. At this time, the plastic cup 7 has completed the transfer, and the material changing motor 36 is started to drive the rotating shaft 33 and the printing material tray 31 to rotate a certain angle, so that the next plastic cup 7 to be stamped is rotated to the bottom of the heated rubber roller 43, and the lifting cylinder 61, the rubber roller motor 44, the film collecting motor 24 and the film releasing motor 25 are started to repeat the transfer action.

[0040] A sleeve 63 is fixed on the lifting seat 6, and a guide post 64 is fixed on the lifting plate 62 to slide with the sleeve 63. The sleeve 63 and the guide post 64 are matched to make the up and down movement of the lifting plate 62 more stable and easy to control, and the pressure of the heated rubber roller 43 on the plastic cup 7 is accurately controlled.

[0041] like Figure 4-5As shown, a circular groove 311 is formed on the back of the printing material tray 31, and the air inlet of the blowing air pipe 34 is located in the circular groove 311. An air supply pipe 39 is slidably sleeved on the air outlet pipe of the air outlet pump 38. The front end of the air supply pipe 39 abuts against the circular groove 311, and the rear end of the air supply pipe 39 has a horizontally extended retaining edge 391. A spring 392 is sleeved on the air outlet pipe, one end of the spring 392 abuts against the retaining edge 391, and the other end of the spring 392 abuts against the air outlet pump 38. After the printing material tray 31 rotates a certain angle, the air supply pipe 39 can be connected with the air inlet of the blowing air pipe 34.

[0042] Due to the elastic force of the spring 392, the air supply pipe 39 slides along the air outlet pipe toward the annular groove 311, so that the air supply pipe 39 firmly abuts against the bottom of the annular groove 311. When the printing material tray 31 rotates, the annular groove 311 rotates relative to the air supply pipe 39, so that the blowing air pipe 34 to be unloaded is aligned with the air supply pipe 39. Under the thrust of the spring 392, the sealing between the air supply pipe 39 and the blowing air pipe 34 is improved.

[0043] like Figure 7-8 As shown, the automatic feeding mechanism 5 includes a feeding platform 51, a conveyor belt 52, a material storage box 53, a material receiving box 54 and a feeding cylinder 55. The conveyor belt 52 is embedded in the feeding platform 51 and is lower than the upper end surface of the feeding platform 51. The material storage box 53 is fixed at the upper end of the feeding platform 51 and is located above the conveyor belt 52. The material receiving box 54 is arranged inside the feeding platform 51. A sliding bucket 56 for guiding the plastic cup 7 into the material receiving box 54 is arranged at the tail end of the feeding platform 51. The bottom of the material storage box 53 is open and a discharge port is opened on the side of the lower end. A baffle plate 57 facing the discharge port is fixed on the feeding platform 51, and the feeding cylinder 55 is fixed at the outer end of the baffle plate 57. Driven by the conveyor belt 52, the plastic cup 7 rests on the baffle plate 57, and the feeding cylinder 55 is started to push the plastic cup 7 onto the positioning rubber sleeve 35.

[0044] A plurality of staggered inclined partitions 58 are provided in the storage box 53, and a guide plate 59 is fixed inside the loading platform 51, and the guide plate 59 is directly opposite to the loading cylinder 55, and the loading cylinder 55 pushes the plastic cup 7 to slide onto the positioning rubber sleeve 35 along the guide plate 59. The plastic cups 7 can slide to the bottom of the storage box 53 one by one along the inclined partitions 58, and finally fall on the conveyor belt 52, and are taken out from the discharge port by the conveyor belt 52 until they abut against the baffle plate 57. The guide plate 59 is provided to make it easier and more accurate for the plastic cup 7 to be put on the positioning rubber sleeve 35.

[0045] The loading platform 51 is also fixed with a material collecting fence 510, one side of which is open and faces the air outlet pump 38, and a guide plate 511 located in front of the opening is fixed on the side of the loading platform 51. After the hot stamping is completed, the printing material tray 31 rotates the plastic cup 7 to the material collecting fence 510, and the air outlet pump 38 delivers gas, which is sent into the plastic cup 7 through the blowing air pipe 34. Since the mouth of the plastic cup 7 is clamped with the positioning rubber sleeve 35, the air pressure inside the plastic cup 7 gradually increases until the plastic cup 7 is ejected and separated from the positioning rubber sleeve 35, and flies into the material collecting fence 510 under the support of the guide plate 511, and is transported forward by the conveyor belt 52, and finally the plastic cup 7 falls from the slide hopper 56 into the material collecting box 54.

[0046] The positioning rubber sleeve 35 is in the shape of a truncated cone with an outer diameter gradually increasing from front to back. The tail of the positioning rubber sleeve 35 has an unfolded sealing convex edge 351. The front end outer surface of the blowing air pipe 34 has an external thread. The front end of the blowing air pipe 34 is threaded with a retaining ring 352, and the retaining ring 352 is in contact with the front end of the positioning rubber sleeve 35. The plastic cup 7 is inserted into the positioning rubber sleeve 35, and the cup mouth of the plastic cup 7 is in contact with the sealing convex edge 351. At the same time, the outer peripheral wall of the positioning rubber sleeve 35 supports the cup mouth, thereby improving the sealing effect, and the air inside the plastic cup 7 is not easy to leak. When feeding, the blowing air pipe 34 is injected with air, and the internal air pressure is more likely to increase quickly, so that the blowing speed from the positioning rubber sleeve 35 is faster and the ejection is more powerful. The retaining ring 352 is used to block the positioning rubber sleeve 35 to prevent the positioning rubber sleeve 35 from moving axially and detaching from the blowing air pipe 34.

[0047] Workflow: The worker puts the plastic cup 7 into the storage box 53, and the plastic cup 7 rolls along the inclined partition 58 to the conveyor belt 52 at the bottom. The conveyor belt 52 moves the plastic cup 7 out of the storage box 53 until the plastic cup 7 abuts against the baffle plate 57. At this time, the side loading cylinder 55 is driven to push the plastic cup 7 to the printing material tray 31. The plastic cup 7 is stuck into the positioning rubber sleeve 35 along the guide plate 59 to complete the loading action. The lifting cylinder 61 drives the lifting plate 62 to sink, so that the heated rubber roller 43 presses the thermal transfer film onto the plastic cup 7, and at the same time starts the rubber roller motor 44, the film collection motor 24 and the film release motor 25. The heated rubber roller 43 transfers the pattern on the thermal transfer film to the cup surface and drives the plastic cup 7 and the positioning rubber sleeve 35 to rotate around the blowing air pipe 34, so that the plastic cup 7 is hot-stamped while rotating. After the hot stamping is completed, the material changing motor 36 drives the printing material tray 31 to rotate, so that the next plastic cup 7 rotates to the transfer station, and the plastic cup 7 that has completed the hot stamping continues to rotate with the printing material tray 31 until it rotates to the unloading station, the air supply pipe 39 and the discharge air pipe are connected, and the air outlet pump 38 aligned with the unloading station is started, and air is blown into the closed plastic cup 7 through the air supply pipe 39 and the blowing air pipe 34, so that the plastic cup 7 pops out from the positioning rubber sleeve 35, and the plastic cup 7 is blown onto the conveyor belt 52, completing the automatic unloading action. The material collection fence 510 can prevent the plastic cup 7 from falling to the outside, and the plastic cup 7 is sent into the slide hopper 56 by the conveyor belt 52 and falls into the material collection box 54.

[0048] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A fully automatic hot stamping machine for processing plastic cups, comprising a column (1), a lifting seat (6), a film-retracting and releasing mechanism (2) for orderly retracting and releasing a heat transfer film, a printing mechanism (3) capable of loading a plastic cup (7), a hot stamping mechanism (4) for pressing the heat transfer film onto the plastic cup (7), and an automatic feeding mechanism (5) for feeding the material to the printing mechanism (3), characterized in that: A vertical sliding hole (11) is opened on the column (1), one end of the lifting seat (6) is embedded in the vertical sliding hole (11) and rises and falls along the vertical sliding hole (11), a screw rod (12) is passed through the vertical sliding hole (11), the screw rod (12) passes through the lifting seat (6) and is threadedly connected with the lifting seat (6), an adjustment handle (13) is fixed to the upper end of the screw rod (12) after passing through the column (1), a lifting cylinder (61) is fixed on the lifting seat (6), the lower end of the telescopic rod of the lifting cylinder (61) is connected to a lifting plate (62), the hot stamping mechanism (4) and the film retracting and releasing mechanism (2) are both fixed on the lifting plate (62), the printing mechanism (3) comprises a printing material tray (31), an adjusting square column (32), a rotating shaft (33), a blowing air pipe (34) and a positioning rubber sleeve (35), the middle of the column (1) A transverse sliding hole (14) is provided, and an adjusting square column (32) is inserted into the transverse sliding hole (14) and slidably matched with the column (1). A rotating shaft (33) penetrates the adjusting square column (32) along the length direction of the adjusting square column (32). The front end of the rotating shaft (33) is coaxially fixed with the printing material tray (31). A material changing motor (36) is fixed to the rear end of the adjusting square column (32). The material changing motor (36) is connected to the rear end of the rotating shaft (33) by power through a gear set (37). A plurality of blowing air pipes (34) are uniformly inserted on the printing material tray (31) in the circumferential direction. A positioning rubber sleeve (35) that can be clamped with a plastic cup (7) is sleeved outside the blowing air pipe (34) and is rotatably connected with the blowing air pipe (34). An air outlet pump (38) that can connect with the blowing air pipe (34) and deliver air is also fixed to one side of the adjusting square column (32).

2. The fully automatic hot stamping machine for processing plastic cups according to claim 1, characterized in that: The back of the printing material tray (31) is provided with a circular groove (311), the air inlet of the blowing air pipe (34) is located in the circular groove (311), the air outlet pipe of the air outlet pump (38) is slidably sleeved with an air supply pipe (39), the front end of the air supply pipe (39) abuts against the circular groove (311), the rear end of the air supply pipe (39) has a horizontally extended stop edge (391), a spring (392) is sleeved on the air outlet pipe, one end of the spring (392) abuts against the stop edge (391), and the other end of the spring (392) abuts against the air outlet pump (38), and the air supply pipe (39) can be connected with the air inlet of the blowing air pipe (34) after the printing material tray (31) rotates a certain angle.

3. The fully automatic hot stamping machine for processing plastic cups according to claim 1, characterized in that: An adjusting cylinder (15) is fixed on the upright column (1), a push-pull plate (16) is fixed at the rear end of the adjusting square column (32), and a telescopic rod of the adjusting cylinder (15) is fixed to the push-pull plate (16).

4. The fully automatic hot stamping machine for processing plastic cups according to claim 1, characterized in that: The automatic feeding mechanism (5) comprises a feeding platform (51), a conveyor belt (52), a material storage box (53), a material receiving box (54) and a feeding cylinder (55). The conveyor belt (52) is embedded in the feeding platform (51) and is lower than the upper end surface of the feeding platform (51). The material storage box (53) is fixed at the upper end of the feeding platform (51) and is located above the conveyor belt (52). The material receiving box (54) is arranged inside the feeding platform (51). A sliding bucket (56) for guiding the plastic cup (7) to enter the material receiving box (54) is arranged at the rear end of the feeding platform (51). The bottom of the material storage box (53) is open and a discharge port is opened on the side of the lower end. A baffle plate (57) facing the discharge port is fixed on the feeding platform (51). The feeding cylinder (55) is fixed at the outer end of the baffle plate (57).

5. The fully automatic hot stamping machine for processing plastic cups according to claim 4, characterized in that: A plurality of staggered inclined partitions (58) are arranged in the material storage box (53), a guide plate (59) is fixed on the inner side of the loading platform (51), the guide plate (59) is directly opposite to the loading cylinder (55), and the loading cylinder (55) pushes the plastic cup (7) to slide onto the positioning rubber sleeve (35) along the guide plate (59).

6. The fully automatic hot stamping machine for processing plastic cups according to claim 5, characterized in that: A material collecting fence (510) is also fixed on the loading platform (51), one side of the material collecting fence (510) is open and the opening faces the air outlet pump (38), and a receiving plate (511) located in front of the opening is fixed on the side of the loading platform (51).

7. The fully automatic hot stamping machine for processing plastic cups according to claim 1, characterized in that: The film-reeling and film-unwinding mechanism (2) comprises a crossbeam (21), a film-reeling roller (22), a film-unwinding roller (23), a film-reeling motor (24) and a film-unwinding motor (25); the crossbeam (21) is fixed on one side of the lifting plate (62); the film-unwinding roller (23) is rotatably connected to one end of the crossbeam (21); the film-reeling roller (22) is rotatably connected to the other end of the crossbeam (21); the film-reeling motor (24) and the film-unwinding motor (25) are both fixed on the crossbeam (21); the film-reeling motor (24) drives the film-reeling roller (22) to rotate; and the film-unwinding motor (25) drives the film-unwinding roller (23) to rotate.

8. The fully automatic hot stamping machine for processing plastic cups according to claim 1, characterized in that: The hot stamping mechanism (4) comprises a hot stamping mounting plate (41), a heat preservation cover (42), a heating rubber roller (43), a rubber roller motor (44) and an electric heating tube (45); the hot stamping mounting plate (41) is fixed to the lower end of the lifting plate (62); the heat preservation cover (42) is fixed to the lower end of the hot stamping mounting plate (41); the heating rubber roller (43) is rotatably connected to the hot stamping mounting plate (41) and is located in the heat preservation cover (42); the electric heating tube (45) is fixed to the inner wall of the heat preservation cover (42); the rubber roller motor (44) is fixed to one side of the hot stamping mounting plate (41) and drives the heating rubber roller (43) to rotate through a pulley assembly.

9. The fully automatic hot stamping machine for processing plastic cups according to claim 1, characterized in that: A sleeve (63) is fixed on the lifting seat (6), and a guide post (64) which is slidably matched with the sleeve (63) is fixed on the lifting plate (62).

10. The fully automatic hot stamping machine for processing plastic cups according to claim 2, characterized in that: The positioning rubber sleeve (35) is in the shape of a truncated cone with an outer diameter gradually increasing from front to back. The rear end of the positioning rubber sleeve (35) has an expanded sealing convex edge (351). The front end outer surface of the blowing air pipe (34) has an external thread. The front end of the blowing air pipe (34) is threadedly connected with a retaining ring (352), and the retaining ring (352) is in contact with the front end of the positioning rubber sleeve (35).

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