Method for preparing a transparent cake holder

Abstract

The embodiment of the application provides a transparent cake tray preparation method, and relates to the cake tray processing technical field. The transparent cake tray preparation method comprises the following steps: raw material preparation in step one, solution preparation in step two, plasticizing extrusion in step three, cooling and solidification in step four, stretching and forming in step five, and finished product preparation in step six. The high-efficiency convex ribs and notches are applied to improve the process, improve the hardness of the cake tray, effectively hold the cakes and pastries, facilitate the placement, improve the processing efficiency, and through the feeding assembly, feeding operation is performed on the unprocessed transparent cake tray embryo and the processed transparent cake tray finished product in the finished product preparation in step six, manual feeding and discharging operation is not needed, the ring cutting assembly is used to realize the ring cutting effect on the opening of the transparent cake tray embryo leaking out of the placement mold groove, time and labor are saved, the efficiency is high, the notch caused by excessive cutting is avoided, the light residual material caused by excessive cutting is avoided, and the ring cutting quality of the transparent cake tray embryo is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of cake holder processing, and particularly relates to a transparent cake holder preparation method. BACKGROUND

[0002] The cake holder is an open box for containing small cakes, and various cake holders appear on the market according to the display requirements of cakes, including transparent cake holders, which are mainly used to directly display the overall appearance of cakes. However, the production and preparation process of the transparent cake holder is relatively simple, and efficient convex ribs and concave notches cannot be applied to improve the process, so that the cake holder is not firm enough and the processing efficiency is low.

[0003] In the prior art (patent application with the patent name of a cake tray processing device and the announcement number of CN210818795U), the debris generated during the processing of the original piece is blown to the bottom wall of the inner cavity of the processing box, which can greatly reduce the adverse effects of debris accumulation on processing. In the process of implementing this technical solution, it is found that at least the following problems exist in the prior art:

[0004] During the processing of the cake holder embryo, the opening of the cake holder embryo has burrs, burrs and residual materials, the cake holder embryo is basically fed to the processing place by manual operation, and the burrs, burrs and residual materials at the opening of the cake holder embryo are cut off by using the cutting method one by one. Not only is the efficiency low, but also the cake holder embryo is soft and difficult to shape, which leads to excessive cutting of the opening of the cake holder embryo, resulting in a gap, or residual materials are still present after light cutting, the waste rate is high, and the quality is also low. SUMMARY

[0005] The present application aims to at least solve the technical problems in the prior art that the cake holder embryo after the convex rib and concave notch improvement process cannot be processed efficiently and accurately in a coherent way combining feeding and ring cutting, and the high waste rate also leads to low quality and efficiency. Therefore, the present application proposes a transparent cake holder preparation method.

[0006] To achieve the above-mentioned purpose, the specific technical solutions of the present application are as follows:

[0007] A transparent cake holder preparation method, comprising the following steps:

[0008] Step 1, raw material preparation: the main raw material of the PET film is polyethylene terephthalate particles, and the polyethylene terephthalate is prepared by ester exchange of dimethyl terephthalate and ethylene glycol or by esterification of terephthalic acid and ethylene glycol to synthesize bis-hydroxyethyl terephthalate, and then by polycondensation reaction;

[0009] Step two, solution preparation: after pre-drying the PET particles, use an extruder to heat and melt them to form a viscous PET film solution, and add additives such as plasticizers, stabilizers and antistatic agents to improve the performance of the film;

[0010] Step three, plasticizing extrusion: the PET film solution is plasticized and extruded through the screw of the extruder, so that it becomes a uniform molten state. The extruder extrudes the film solution by heating and extruding, and stretches and presses it through multiple calender rollers, so that it gradually thins out.

[0011] Step four, cooling and solidification: the extruded PET film needs to be quickly cooled by the cooling roller after passing through the calender roller, so that it can be quickly solidified. The cooling roller is generally cooled by cooling water to ensure the quality and flatness of the film.

[0012] Step five, stretching and forming: first, pre-dry the PET resin chips to prevent hydrolysis, then extrude amorphous thick pieces at 280°C through a T-shaped die in an extruder, and quench them by a cooling drum or cooling liquid to maintain their amorphous state for stretching and orientation. The thick pieces are then stretched in both directions by a tenter frame to produce PET film.

[0013] Step six, product preparation: after cutting the PET film into pieces, place them in a mold with protrusions and notches in a thermoplastic forming machine for heat forming treatment to produce a transparent cake holder embryo with protrusions and notches, then process the embryo through processing equipment to remove burrs and excess residue to obtain a finished product of transparent cake holder made of PET material.

[0014] Preferably, in the stretching and forming operation of step five, the longitudinal stretching is to preheat the thick piece to 86-87°C and stretch it about 3 times along the plane extension direction of the thick piece at this temperature, so that the orientation can increase the crystallinity to a higher temperature: the transverse stretching preheating temperature is 98-100°C, the stretching temperature is 100-120°C, the stretching ratio is 2.5-4.0, and the heat setting temperature is 230-240°C. The film after longitudinal and transverse stretching needs to be heat set to eliminate the deformation of the film caused by stretching, so as to produce a film with better thermal stability.

[0015] Preferably, the processing equipment in step six includes a processing table, an embryo box and a finished product box buckled on the outside of the processing table, and the processing table is respectively provided with a feeding assembly and a ring cutting assembly for processing the transparent cake holder embryo.

[0016] Preferably, the feeding assembly comprises an X-axis electric sliding rail arranged outside the processing table, an X-axis electric sliding base sliding on the X-axis electric sliding rail, a Y-axis lifting cylinder fixedly connected to the top of the X-axis electric sliding base, a Z-axis electric sliding rail fixedly connected to the piston rod of the Y-axis lifting cylinder, and a Z-axis electric sliding base sliding on the Z-axis electric sliding rail, wherein the bottom of the Z-axis electric sliding base is fixedly connected to an angle motor, and the output shaft of the angle motor is connected to an electric suction cup through a swing arm for horizontal swing adjustment.

[0017] Preferably, the ring cutting assembly comprises a turnover motor embedded in the swing arm, a sealing sliding cylinder fixed to the output shaft of the turnover motor, a stop seat for positioning the transparent cake holder embryo fixed in the sealing sliding cylinder through a T-shaped sliding base, a gear ring sleeved outside the sealing sliding cylinder, a stepping motor arranged outside the sealing sliding cylinder, a gear sleeved with the gear ring and fixedly connected to the output shaft of the stepping motor, and a flat cutter holder for cutting the transparent cake holder embryo after the stop seat is positioned.

[0018] Preferably, the processing table is arranged with a placing mold groove for placing the transparent cake holder embryo below the electric suction cup, and the area of the suction cup port of the electric suction cup is the same as the area of the box bottom of the transparent cake holder embryo.

[0019] Preferably, the X-axis electric sliding base and the Z-axis electric sliding base are fixedly connected with displacement sensors, and the range of the electric suction cup after three-axis displacement of the X-axis, the Y-axis and the Z-axis is the same as the cross-sectional area of the processing table.

[0020] Preferably, the inner side of the X-axis electric sliding base is fixedly connected with a sliding frame, the sliding frame is in sliding fit with the outer side of the processing table, and the sliding frame is located outside the placing mold groove.

[0021] Preferably, the inner cavity of the sealing sliding cylinder is embedded with a buffer spring fixedly connected with the T-shaped sliding base, and the stop seat and the placing mold groove are both designed with notches matched with the convex lines on the transparent cake holder embryo.

[0022] Preferably, the outer side of the sealing sliding cylinder close to the gear ring is sleeved with a sliding along mouth, and the sliding along mouth is slidingly connected with a sliding cover box fixedly connected with the gear and the stepping motor.

[0023] The transparent cake holder preparation method has the following advantages:

[0024] 1. The transparent cake stand preparation method, first, two X-axis electric sliding rails simultaneously displace the X-axis electric sliding seat in the X-axis direction, two Y-axis lifting cylinders lift in the Y-axis direction, and a single Z-axis electric sliding rail displaces the Z-axis electric sliding seat in the Z-axis direction, then the angle motor rotates the electric suction cup through the swing arm, the electric suction cup is adjusted to the desired position through X-axis, Y-axis and Z-axis displacement, and horizontal displacement rotation, and the electric suction cup is used to feed the unprocessed transparent cake stand embryo and the processed transparent cake stand product, without manual feeding and discharging operation, realizing efficient processing of the transparent cake stand embryo.

[0025] 2. The transparent cake stand preparation method, then, first, the sealing sliding cylinder and the flat cutting tool holder are flipped by the flip motor, and then the transparent cake stand embryo in the placing mold groove is flipped, then the stop seat on the T-shaped sliding seat stops and positions the transparent cake stand embryo one by one, and at the same time, the step motor drives the gear ring to rotate around the gear ring, and the step motor also drives the flat cutting tool holder to rotate, and the transparent cake stand embryo that leaks out of the placing mold groove is cut, saving time and effort, improving efficiency, and avoiding excessive cutting and residual material residues, improving the cutting quality of the transparent cake stand embryo.

[0026] 3. The transparent cake stand preparation method, during which, the small cold and hot all-in-one machine provides a cold source, the small circulating pump on the electric control valve supplies the cold source to the air distribution head, and then the cross-shaped pipe frame supplies the cold source to the transparent cake stand embryo area in the placing mold groove through the delivery hole of the delivery head, and the transparent cake stand embryo to be cut is cooled and hardened, further improving the cutting quality of the transparent cake stand embryo at the opening, preventing the transparent cake stand embryo at the opening from being too soft, further improving the cutting quality of the burrs and burrs at the opening of the transparent cake stand embryo, reducing the rate of defective products and rework rate;

[0027] After the transparent cake stand embryo is cooled and hardened, the small cold and hot all-in-one machine provides a heat source, and the heat source is supplied to the transparent cake stand embryo area in the placing mold groove through the delivery hole of the delivery head, and the hardened transparent cake stand embryo after cutting is heated and recovered, which is beneficial to subsequent processing operation. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0029] Figure 1 A transparent cake stand preparation method structure schematic diagram of the present application;

[0030] Figure 2 A transparent cake stand preparation method structure side view of the present application;

[0031] Figure 3 A transparent cake stand preparation method structure exploded view of the present application;

[0032] Figure 4 A feeding assembly and a cutting assembly structure side view of the present application;

[0033] Figure 5 A feeding assembly structure rear view of the present application;

[0034] Figure 6 A cutting assembly structure sectional view of the present application;

[0035] Figure 7 A cutting assembly structure side view of the present application;

[0036] Figure 8 A sealing slide cylinder structure sectional view of the present application;

[0037] Figure 9 A processing table and hardening assembly structure sectional view of the present application;

[0038] Figure 10 A hardening assembly structure exploded view of the present application;

[0039] Figure 11 A processing table structure sectional view of the present application;

[0040] Figure 12 An embryo material box and a transparent cake stand embryo structure exploded view of the present application.

[0041] Marked description: 1, processing table; 2, embryo material box; 3, finished product box; 41, X-axis electric slide rail; 42, X-axis electric slide; 43, Y-axis lifting cylinder; 44, Z-axis electric slide rail; 45, Z-axis electric slide; 46, angle motor; 47, swing arm; 48, electric suction cup; 51, turnover motor; 52, sealing slide cylinder; 53, T-shaped slide; 54, stop seat; 55, gear ring; 56, stepping motor; 57, gear; 58, flat cutting knife holder; 61, small cold and hot integrated machine; 62, electric control valve; 63, temperature sensor; 64, small circulating pump; 65, air distribution head; 66, cross type pipe rack; 67, conveying head; 68, conveying hole; 7, slide; 8, placed die groove; 9, buffer spring; 10, sliding along the mouth; 11, sliding cover box. DETAILED DESCRIPTION

[0042] The application will be specifically introduced below in combination with the drawings and specific embodiments.

[0043] The application provides a transparent cake stand preparation method, which comprises the following steps:

[0044] Step one, raw material preparation: the main raw material of the PET film is polyethylene terephthalate particles, which is prepared by ester exchange of dimethyl terephthalate and ethylene glycol or by esterification of terephthalic acid and ethylene glycol to synthesize bis-hydroxyethyl terephthalate, and then by polycondensation reaction;

[0045] Step two, solution preparation: after pre-drying the PET particles, the particles are heated and melted by using an extruder to form a viscous PET film solution, and additives such as plasticizers, stabilizers and antistatic agents are added to the solution to improve the performance of the film;

[0046] Step three, plasticizing extrusion: the PET film solution is plasticized and extruded by the screw of the extruder to become a uniform molten state, the film solution is extruded out by the extruder through heating and extrusion, and is stretched and pressed by multiple calender rollers to gradually become thin;

[0047] Step four, cooling and solidification: the extruded PET film is rapidly cooled and solidified by the action of cooling rollers after passing through the calender rollers, the cooling rollers are generally cooled by cooling water to ensure the quality and flatness of the film;

[0048] Step five, stretching and forming: the PET resin chips are pre-dried to prevent hydrolysis, then the amorphous thick sheet is extruded by the T-shaped die in the extruder at 280 DEG C, and is rapidly cooled by a cooling drum or cooling liquid to keep the amorphous state, so as to be stretched and oriented, and the thick sheet is stretched in two directions by a tentering machine to prepare the PET film;

[0049] Step six, product preparation: the prepared PET film chips are cut and placed into the mold with protrusions and recesses in the thermoplastic forming machine for heat forming treatment, the transparent cake stand embryo with staggered design of protrusions and recesses is prepared, and then the processing equipment is used for finishing treatment to remove burrs and excess residues, and finally the finished product of the transparent cake stand made of PET material is obtained;

[0050] In the stretching and forming operation in step five, longitudinal stretching involves preheating the thick sheet to 86-87℃ and stretching it approximately three times along the plane of the sheet at this temperature to improve its orientation and crystallinity. The transverse stretching preheats at 98-100℃, stretches at 100-120℃ with a stretching ratio of 2.5-4.0, and heat-sets at 230-240℃. The film after longitudinal and transverse stretching also needs to undergo heat setting to eliminate film deformation caused by stretching, resulting in a film with good thermal stability. Applying efficient ribs and notches improves the process, increases the hardness of the cake tray, effectively holds cakes and pastries, facilitates placement, and also improves processing efficiency.

[0051] like Figures 1-8 As shown, the processing equipment in step six, the finished product preparation, includes a processing table 1, a base material box 2 and a finished product box 3 that are snapped onto the outside of the processing table 1. The processing table 1 is equipped with a feeding component and a ring-cutting component for processing transparent cake trays. The feeding operation is performed on the unprocessed transparent cake trays and the processed transparent cake trays. No manual loading and unloading operation is required, which achieves a high-efficiency processing effect for transparent cake trays. It also achieves a ring-cutting effect on the opening of the transparent cake tray that is exposed in the mold groove 8. It saves time and effort, is highly efficient, and avoids excessive cutting that results in gaps, as well as insufficient cutting that leaves residual material, thus improving the ring-cutting quality of the transparent cake trays.

[0052] The feeding assembly includes an X-axis electric slide rail 41 located on the outside of the processing table 1, and an X-axis electric slide block 42 sliding on it. The X-axis electric slide block 42 is simultaneously displaced along the X-axis by two X-axis electric slide rails 41. A Y-axis lifting cylinder 43 is fixedly connected to the top of the X-axis electric slide block 42. The two Y-axis lifting cylinders 43 lift and lower along the Y-axis. A Z-axis electric slide rail 44 is fixedly connected to the piston rod on the Y-axis lifting cylinder 43, and a Z-axis electric slide block 45 slides on the Z-axis electric slide rail 44. The Z-axis electric slide block 45 is displaced along the Z-axis by a single Z-axis electric slide rail 44.

[0053] An angle motor 46 is fixedly connected to the bottom of the Z-axis electric slide 45, and the output shaft of the angle motor 46 is adjusted horizontally to the electric suction cup 48 via the swing arm 47. The angle motor 46 rotates the electric suction cup 48 horizontally via the swing arm 47. The electric suction cup 48, which is adjusted to the position via the three-axis displacement of X, Y and Z axes and horizontal rotation, can perform feeding operations on unprocessed transparent cake trays and processed transparent cake trays. No manual loading and unloading operations are required, achieving a highly efficient processing effect for transparent cake trays.

[0054] The processing table 1 is provided with a placing mold groove 8 for placing the transparent cake holder embryo, which is convenient for placing the transparent cake holder embryo to be processed and is located below the electric suction cup 48. The suction cup opening area of the electric suction cup 48 is the same as the bottom area of the transparent cake holder embryo, and the transparent cake holder embryo can be displaced by adsorbing the bottom of the inner box. The X-axis electric sliding seat 42 and the Z-axis electric sliding seat 45 are both fixed with displacement sensors for real-time monitoring of the displacement of the X-axis electric sliding seat 42 and the Z-axis electric sliding seat 45. The range of the electric suction cup 48 after three-axis displacement of X-axis, Y-axis and Z-axis is the same as the cross-sectional area of the processing table 1, which meets the feeding and cutting requirements of the transparent cake holder embryo in the several placing mold grooves 8 on the processing table 1. The inner side of the X-axis electric sliding seat 42 is fixedly connected with a sliding frame 7, and the sliding frame 7 is in sliding cooperation with the outer side of the processing table 1 and is located outside the placing mold groove 8, which plays a sliding limiting role for the X-axis electric sliding seat 42 and improves the X-axis axial displacement stability of the X-axis electric sliding seat 42.

[0055] The cutting assembly includes a turnover motor 51 embedded in the swing arm 47, which drives the whole turnover of the abutting seat 54 on the sealing sliding cylinder 52 and the flat cutting knife holder 58 on the stepping motor 56, and towards the transparent cake holder embryo in the placing mold groove 8. The sealing sliding cylinder 52 is fixed on the output shaft of the turnover motor 51, and the abutting seat 54 for positioning the transparent cake holder embryo is fixed in the sealing sliding cylinder 52 through the T-shaped sliding seat 53. The abutting seat 54 on the T-shaped sliding seat 53 first stops and positions the transparent cake holder embryo one by one, and the gear ring 55 is sleeved outside the sealing sliding cylinder 52. The outer side of the sealing sliding cylinder 52 is provided with a stepping motor 56, and the output shaft of the stepping motor 56 is sleeved with a gear 57 engaged with the gear ring 55. The gear 57 is driven by the stepping motor 56 to make circular motion around the gear ring 55, and the flat cutting knife holder 58 for cutting the transparent cake holder embryo after positioning the abutting seat 54 is fixed. The stepping motor 56 also drives the flat cutting knife holder 58 to rotate and realizes the cutting effect of the transparent cake holder embryo opening out of the placing mold groove 8, which saves time and effort, has high efficiency, avoids the appearance of excessive cutting and light residual residue, and improves the cutting quality of the transparent cake holder embryo;

[0056] The inner cavity of the sealing slide cylinder 52 is fitted with a buffer spring 9 that is fixedly matched with the T-shaped slide block 53, which plays the role of elastic buffering and elastic reset for the T-shaped slide block 53. The stop seat 54 and the placement mold groove 8 are both designed with concave openings that match the protrusions on the transparent cake tray. The stop seat 54 fully stops and positions the transparent cake tray placed in the placement mold groove 8. The outer side of the sealing slide cylinder 52 near the gear ring 55 is fitted with a sliding edge 10, and a sliding cover box 11 that is fixedly protected to the gear 57 and the stepper motor 56 is slidably connected to the sliding edge 10. When the stepper motor 56 drives the gear 57 to make a circular motion around the gear ring 55, it also drives the sliding cover box 11 to rotate in a circular motion on the sliding edge 10 on the sealing slide cylinder 52, thereby improving the stability of the circular motion of the stepper motor 56 and the whole.

[0057] like Figures 9-11 As shown, during the processing of rough edges and burr residue at the opening of the thermoplastic-molded transparent cake tray, the opening of the transparent cake tray is relatively soft, which makes it easy for the ring cutting to be incomplete. Therefore, the transparent cake tray cannot be cooled and hardened as a whole based on the positioning of the stop seat 54, which makes the processing quality of the transparent cake tray unreliable. The bottom of the processing table 1 is equipped with a hardening component that is used in conjunction with the transparent cake tray placed in the mold trough 8. The hardening component includes a small integrated heating and cooling machine 61 fixed on one side of the processing table 1. The rear side of the small integrated heating and cooling machine 61 is connected to an electric control valve 62 with a temperature sensor 63 and a small circulation pump 64. The small circulation pump 64 is connected to an air distribution head 65 that is fixedly matched with the processing table 1. The small integrated heating and cooling machine 61 provides the cold source, and the cold source is supplied to the air distribution head 65 through the small circulation pump 64 on the electric control valve 62.

[0058] The air distribution head 65 is connected to the conveying head 67 by a cross-shaped pipe rack 66 around its perimeter. The processing table 1 has a conveying hole 68 at the bottom near the placement mold trough 8, which communicates with and cooperates with the conveying head 67. The cross-shaped pipe rack 66 supplies the cold source into the transparent cake tray area in the placement mold trough 8 through the conveying hole 68 at the conveying head 67. This cools and hardens the transparent cake tray to be ring-cut, further improving the ring-cutting quality of the flat cutting blade 58 at the opening of the transparent cake tray. This prevents the transparent cake tray opening from being too soft and resulting in incomplete cutting. It also improves the quality of removing burrs and residual material at the opening of the transparent cake tray, reducing the defect rate and rework rate. After the transparent cake tray has been cooled and hardened and the ring-cutting operation is completed, the small integrated cooling and heating machine 61 is controlled to provide a heat source. Similarly, the heat source is supplied into the transparent cake tray area in the placement mold trough 8 through the conveying hole 68 at the conveying head 67. This heats and restores the hardened transparent cake tray after ring-cutting, which is beneficial for subsequent processing operations.

[0059] The working principle of the transparent cake stand preparation method is as follows: when the processing equipment in step six processes the transparent cake stand embryo with staggered design of convex ribs and notches, first, control two X-axis electric sliding rails 41 to open synchronously and drive two groups of X-axis electric sliding seats 42 to move in the X-axis direction, drive the sliding frame 7 to slide along the edge of the processing table 1, control two Y-axis lifting cylinders 43 to move up and down in the Y-axis direction, and control a single Z-axis electric sliding rail 44 to drive the Z-axis electric sliding seat 45 to move in the Z-axis direction. Then, after the angle motor 46 drives the electric suction cup 48 on the swing arm 47 to rotate and change position to the position of the transparent cake stand embryo stored in the embryo box 2, control the electric suction cup 48 to adsorb the bottom of the transparent cake stand embryo box one by one. Similarly, place the adsorbed transparent cake stand embryo in the placement mold groove 8 on the processing table 1 one by one to complete the feeding and discharging of several transparent cake stand embryos;

[0060] Then, first control the turnover motor 51 to open and drive the abutting seat 54 on the sealing sliding cylinder 52 and the flat cutting tool holder 58 on the stepping motor 56 to turn downward and successively reach above the transparent cake stand embryo in the placement mold groove 8. After the electric suction cup 48 turns upward, control the two Y-axis lifting cylinders 43 to drive the abutting seat 54 on the sealing sliding cylinder 52 to move downward and abut and position the transparent cake stand embryo in the current placement mold groove 8. The transparent cake stand embryo that is abutted and positioned only exposes the opening area above the placement mold groove 8, and forces the T-shaped sliding seat 53 to slide in the sealing sliding cylinder 52 and compresses the buffer spring 9;

[0061] After the abutting seat 54 moves downward to abut and position the transparent cake stand embryo, the flat cutting tool holder 58 on the stepping motor 56 also moves downward to one side of the exposed opening area of the transparent cake stand embryo. The sliding edge 10 and the sliding cover box 11 support the gear 57 and the gear ring 55 on the stepping motor 56 to rotate. Then, control the stepping motor 56 to open and drive the gear 57 to rotate around the gear ring 55. The stepping motor 56 that rotates also drives the flat cutting tool holder 58 that moves downward to rotate and perform circular cutting on the exposed opening area of the transparent cake stand embryo. In this way, the flat cutting tool holder 58 processes several transparent cake stand embryos in the placement mold groove 8 one by one through the abutting seat 54. After the transparent cake stand embryo that exposes the opening area above the placement mold groove 8 is completely cut, similarly, after adjusting the X-axis, Y-axis, and Z-axis and rotating and changing position, the electric suction cup 48 discharges the transparent cake stand product in the placement mold groove 8 that completes the cutting to the product box 3 for storage;

[0062] During this period, first control small cold and hot integrated machine 61 to generate cold source, through temperature sensor 63 on electric control valve 62 to carry out real-time temperature control monitoring, and control small circulating pump 64 to open to supply cold source into gas distribution head 65, then supply cold source from conveying head 67 on cross type pipe frame 66 through conveying hole 68 into several transparent cake support embryo areas in the placed mold groove 8 which are not ring cut, cool and harden the whole transparent cake support embryo which is not ring cut, then stop the transparent cake support embryo which is hardened by abutting seat 54, then control flat cutting tool holder 58 to ring cut the exposed opening area of the transparent cake support embryo which is hardened in several groups of placed mold groove 8 one by one, until the opening area of the batch of transparent cake support embryo is ring cut, get the transparent cake support embryo product, then control small cold and hot integrated machine 61 to generate heat source, similarly, small circulating pump 64 supplies heat source into the ring cut transparent cake support embryo area in several placed mold grooves 8 through gas distribution head 65, cross type pipe frame 66 and conveying head 67 through conveying hole 68, heat the cooled and hardened transparent cake support embryo, then control electric suction cup 48 to unload the ring cut and recovered transparent cake support product in several placed mold grooves 8 to product box 3.

[0063] It should be noted that the specific model specifications of X-axis electric sliding rail 41, X-axis electric sliding seat 42, Y-axis lifting cylinder 43, Z-axis electric sliding rail 44, Z-axis electric sliding seat 45, angle motor 46, electric suction cup 48, overturning motor 51, stepping motor 56, small cold and hot integrated machine 61, electric control valve 62, temperature sensor 63 and small circulating pump 64 need to be determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the art, so it will not be described in detail.

[0064] The power supply circuit of X-axis electric sliding rail 41, X-axis electric sliding seat 42, Y-axis lifting cylinder 43, Z-axis electric sliding rail 44, Z-axis electric sliding seat 45, angle motor 46, electric suction cup 48, overturning motor 51, stepping motor 56, small cold and hot integrated machine 61, electric control valve 62, temperature sensor 63 and small circulating pump 64 is clear to those skilled in the art, and will not be described in detail here.

[0065] It can be understood that the present application is described by some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the present application. In addition, under the guidance of the present application, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the present application. Therefore, the present application is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are within the scope of the present application.

Claims

1. A method of making a transparent cake stand, characterized by: Comprising the following steps: Step one, raw material preparation: the main raw material of PET film is polyethylene terephthalate particles, polyethylene terephthalate is prepared by dimethyl terephthalate and ethylene glycol ester exchange or by terephthalic acid and ethylene glycol esterification to synthesize terephthalic acid bis-hydroxyethyl ester, and then by polycondensation reaction; Step two, solution preparation: after pre-drying the PET particles, use the extruder to heat and melt them to form a viscous PET film solution, add plasticizers, stabilizers and antistatic agents to improve the performance of the film; Step three, plasticizing extrusion: the PET film solution is plasticized and extruded through the screw of the extruder, so that it becomes uniform and molten state, the extruder extrudes the film solution by heating and extruding, and stretches and presses it through multiple calender rollers, so that it gradually thins; Step four, cooling and solidification: the extruded PET film needs to be quickly cooled by the cooling roller after passing through the calender roller, so that it can be quickly solidified, the cooling roller is generally cooled by cooling water to ensure the quality and flatness of the film; Step five, stretching and forming: first, pre-dry the PET resin chips to prevent hydrolysis, then extrude amorphous thick pieces at 280℃ through the T-shaped die in the extruder, quench them by cooling drum or cooling liquid to maintain amorphous state for stretching and orientation, then stretch the thick pieces in both directions by the tenter frame to produce PET film; Step six, product preparation: after the PET film is cut into chips, it is placed in the mold with protrusions and notches in the thermoplastic forming machine for heat forming treatment to produce transparent cake holder embryo with staggered design of protrusions and notches, then the processing equipment is used for finishing treatment to remove burrs and excess residue, and the finished product of transparent cake holder made of PET material is obtained; In step six, first control two X-axis electric slides (41) to open synchronously and drive two groups of X-axis electric slides (42) to move in X-axis direction, drive the carriage (7) to slide along the edge of the processing table (1), control two Y-axis lifting cylinders (43) to adjust the Y-axis direction, and control a single Z-axis electric slide (44) to drive the Z-axis electric slide (45) to move in the Z-axis direction, then rotate the electric suction cup (48) on the swing arm (47) to the position of the transparent cake holder embryo stored in the embryo box (2) through the angle motor (46), control the electric suction cup (48) to adsorb the bottom of the transparent cake holder embryo box one by one, and then place the adsorbed transparent cake holder embryo in the placing groove (8) on the processing table (1) one by one to complete the feeding and discharging of several transparent cake holder embryos; During this period, first control small cold and hot integrated machine (61) to generate cold source through temperature sensor (63) on electric control valve (62) real-time temperature control monitoring, and control small circulating pump (64) open to supply cold source into the gas distribution head (65), and then the cold source is supplied into the cross type pipe frame (66) on the delivery head (67) through the delivery hole (68) into several placed mold groove (8) in the transparent cake support embryo area that is not cut, and the transparent cake support embryo that is not cut is cooled and hardened quickly, and then the hardened transparent cake support embryo is positioned by the stop seat (54), and then the flat cutting knife holder (58) is controlled to cut the transparent cake support embryo exposed in the opening area of the several groups of placed mold groove (8) one by one, until the opening area of the transparent cake support embryo is cut, and the transparent cake support embryo product is obtained, and then the small cold and hot integrated machine (61) generates heat, and the small circulating pump (64) supplies heat to the cut transparent cake support embryo in the placed mold groove (8) through the gas distribution head (65), the cross type pipe frame (66) and the delivery head (67) through the delivery hole (68), and then the transparent cake support embryo is heated and recovered, and then the electric suction cup (48) is controlled to unload the cut and recovered transparent cake support product in the placed mold groove (8) to the product box (3) for storage.

2. The method of claim 1, wherein: In the step five, the longitudinal stretching is to preheat the thick sheet to 86-87℃, and stretch 3 times along the plane extension direction of the thick sheet at this temperature, so that the orientation is increased, the crystallinity is improved, and the temperature is increased to a high temperature; the transverse stretching is to preheat the thick sheet to 98-100℃, stretch the thick sheet at a stretching ratio of 2.5-4.0 at a stretching temperature of 100-120℃, and heat set the thick sheet at a heat setting temperature of 230-240℃; and the film after the longitudinal and transverse stretching needs to be heat set to eliminate the deformation of the film caused by the stretching, so that the film with good heat stability is prepared.

3. The method of claim 2, wherein: The processing equipment in the step six includes a processing table (1), an embryo box (2) and a product box (3) buckled on the outside of the processing table (1), and a feeding assembly and a cutting assembly for transparent cake support embryo processing are arranged on the processing table (1) respectively.

4. The method of claim 3, wherein: The feeding assembly includes an X-axis electric sliding rail (41) arranged on the outside of the processing table (1), an X-axis electric sliding seat (42) sliding on the X-axis electric sliding rail (41), a Y-axis lifting cylinder (43) fixedly connected to the top of the X-axis electric sliding seat (42), a Z-axis electric sliding rail (44) fixedly connected to the piston rod of the Y-axis lifting cylinder (43), and a Z-axis electric sliding seat (45) sliding on the Z-axis electric sliding rail (44), and an angle motor (46) fixedly connected to the bottom of the Z-axis electric sliding seat (45), and the output shaft of the angle motor (46) horizontally swings and adjusts the electric suction cup (48) on the output shaft through a swing arm (47).

5. The method of claim 4, wherein: The ring cutting assembly comprises a turnover motor (51) embedded in a swing arm (47), a sealing slide cylinder (52) fixed on an output shaft of the turnover motor (51), a stop seat (54) for positioning a transparent cake tray embryo fixed in the sealing slide cylinder (52) through a T-shaped slide (53), a gear ring (55) sleeved outside the sealing slide cylinder (52), a stepper motor (56) arranged outside the sealing slide cylinder (52), a gear (57) sleeved on an output shaft of the stepper motor (56) and engaged with the gear ring (55), and a flat cutting knife holder (58) fixed for cutting the transparent cake tray embryo after the stop seat (54) is positioned.

6. The method of claim 5, wherein: The processing table (1) is provided with a placing mold groove (8) for placing the transparent cake tray embryo and located below the electric suction cup (48), and the suction cup opening area of the electric suction cup (48) is the same as the box bottom area of the transparent cake tray embryo.

7. The method of claim 6, wherein: The X-axis electric slide (42) and the Z-axis electric slide (45) are both fixed with displacement sensors, and the range of the electric suction cup (48) after three-axis displacement of X-axis, Y-axis and Z-axis is the same as the cross-sectional area of the processing table (1).

8. The method of claim 7, wherein: The inner side of the X-axis electric slide (42) is fixedly connected with a slide (7), the slide (7) is in sliding fit with the outer side of the processing table (1) and located outside the placing mold groove (8).

9. The method of claim 8, wherein: The inner cavity of the sealing slide cylinder (52) is embedded with a buffer spring (9) fixedly matched with the T-shaped slide (53), and the stop seat (54) and the placing mold groove (8) are both designed with notches matched with convex ribs on the transparent cake tray embryo.

10. The method of claim 9, wherein: The outer side of the sealing slide cylinder (52) close to the gear ring (55) is sleeved with a sliding lip (10), and the sliding lip (10) is slidingly connected with a sliding cover box (11) fixedly protecting the gear (57) and the stepper motor (56).

Images