TWM530601U - Heat-resistant plastic cup sleeve - Google Patents

Abstract

A heat-resistant plastic cup sleeve, comprising an annular base; an annular wall extending upwards from the annular base and expanding gradually; an inner space defined by the annular base and the annular wall; a plurality of first projections and second projections protruding from the annular wall towards the inner space; and an annular projection protruding from the annular base towards the inner space.

Description

Heat resistant plastic cup cover

This creation is directed to a method of forming a heat resistant plastic cup and a heat resistant plastic cup.

With the growing coffee market, brands of chain coffee shops (such as Unistar Starbucks, cama café, Seattle, etc.) are also growing. On the streets of Taiwan, it is common for everyone to take a cup of coffee and take a cup.

In order to protect the environment, most of them use "paper" as the material for the coffee cup. Because the heat insulation effect of paper is relatively common, the coffee that has just been brewed has a temperature of up to 80 degrees C. Therefore, the coffee take-out cup made of paper will make it difficult for the consumer to directly hold it, and if the coffee is directly held, The cup lasts longer and may burn the consumer. Therefore, most stores will put a layer of jacket on the outside of the coffee cup, allowing the user to indirectly hold the coffee cup through the sheath. However, most of the sheaths currently used on coffee cups only surround part of the surface of the coffee cup. The creator of the case believes that the bottom of the coffee cup is not covered by the sheath, if the hot coffee is accidentally leaked from the bottom of the coffee cup (the bottom of the cup is usually adhered to the coffee by the adhesive method). The inner wall of the outer cup) will allow the consumer to directly touch the hot coffee. Extremely dangerous.

Please refer to the following website "http://youtu.be/AIPEwAUGYnE". This is one of the news broadcasted by Zhongtian News Channel on November 2, 2015. Among them, the company will be "Ginger Duck". The dishes are served in the pottery pot and served to the guests, but when the dishes are served, the pot bottom of the pottery pot falls without warning, so that the extremely hot soup is sprayed from the bottom of the pottery pot and spilled onto the guests and the operators.

As mentioned above, the creators of this case have doubts about the daily use of the coffee cup jacket, and inspired by the above news, the creator of the case believes that this unsafeness of the coffee cup jacket should be solved in order to avoid the coffee hobby. The person was accidentally leaked out of the cup of coffee with a cup of coffee.

The present invention provides a method of forming a heat-resistant plastic cup sleeve comprising the steps of: a) providing a mold having a bottle-shaped cavity, the mold being heated and comprising one that can be clamped to each other to form the bottle-shaped cavity a first mold portion, a second mold portion and a third mold portion; b) positioning a tubular plastic blank between the first mold portion, the second mold portion and the third mold portion, and then clamping the first mold a portion, a second mold portion and a third mold portion such that one of the tubular plastic blanks is located in the bottle cavity; c) lowering the nozzle such that the nozzle presses against a nozzle portion of the tubular plastic blank And extending a hollow extension rod into the body of the tubular plastic blank through the nozzle, and moving the extension rod downward so that the extension rod pushes the body of the tubular plastic blank downward; d) passing the nozzle And blowing the high pressure gas to expand the body of the tubular plastic blank and cooling the body; e) heating and shaping the expanded tubular plastic blank to form a heat resistant plastic material; f) opening the mold Take out the resistance Of the plastic member; and g) cutting the heat resistant plastic material along a preformed cutting line on the heat resistant plastic material to form a heat resistant plastic cup.

In the above method, an oil circuit system for supplying hot oil is included in the mold for heating and shaping the expanded tubular plastic blank.

In the above method, a step is further included between the step f) and the step g): printing a pattern on an outer surface of the heat-resistant plastic material.

In the above method, the first mold portion includes a first cavity, the second mold portion includes a second cavity, the first cavity and the second cavity are symmetrical to each other, and the third mold portion When the first mold portion and the second mold portion are clamped, they are sandwiched between the bottom of the first mold portion and the bottom of the second mold portion.

In the above method, the first cavity and the second cavity each include an upper groove segment and a lower groove segment, and the lower groove segments are respectively provided with a plurality of faces facing the first cavity and the second cavity. a first convex portion and a second convex portion that protrude inside.

In the above method, the top end of the third mold portion protrudes toward the bottle-shaped cavity to form an annular convex portion.

In the above method, at least two of the first convex portions are respectively disposed at upper and lower ends of the lower groove segments.

In the above method, the first protrusions at the upper end and the lower end of the lower slot sections extend laterally along the inner surfaces of the lower slot sections, respectively.

In the above method, the second protrusions are respectively disposed at the lower ends of the lower slot segments and extend laterally below the first protrusions.

In the above method, the second protrusions are spaced apart from each other.

In the above method, between the upper slot segments and the lower slot segments a predetermined protrusion corresponding to the pre-formed cutting line on the heat-resistant plastic material.

In the above method, the tubular plastic blank is "polyethylene terephthalate" (hereinafter referred to as PET; plastic code is "1").

The present invention also provides a heat resistant plastic cup sleeve comprising: an annular cup bottom; a ring side wall extending upwardly from the bottom of the annular cup and being divergent; a interior defined by the side wall of the ring and the bottom of the annular cup a plurality of first convex portions and second convex portions projecting from the side wall of the ring toward the inner space; and an annular convex portion projecting from the bottom of the annular cup toward the inner space.

In the above structure, at least two of the first protrusions surround the side wall of the ring.

In the above structure, at least two of the first protrusions are respectively adjacent to the top end and the bottom end of the side wall of the ring.

In the above structure, the second protrusions are disposed at a bottom end of the side wall of the ring and below the first protrusions.

In the above structure, the second protrusions are spaced apart from each other.

In the above structure, a pattern is provided on an outer surface of the annular wall.

In the above structure, the pattern is located between at least two of the first protrusions.

The heat-resistant plastic cup cover of the present invention is preferably produced by the aforementioned method.

100‧‧‧Mold

100a‧‧‧ bottle-shaped cavity

110‧‧‧First mould part

111‧‧‧The first cavity

112‧‧‧Upper slot

113‧‧‧lower section

114‧‧‧First convex

115‧‧‧second convex

120‧‧‧Second mold part

121‧‧‧Second cavity

122‧‧‧Upper slot

123‧‧‧lower section

124‧‧‧First convex

125‧‧‧second convex

130‧‧‧The third mould part

131‧‧‧ annular convex

200‧‧‧Extension rod

300‧‧‧heat-resistant plastic cup cover

301‧‧‧ring cup bottom

302‧‧‧ ring side wall

303‧‧‧Internal space

304‧‧‧First convex

305‧‧‧second convex

306‧‧‧Ring convex

700‧‧‧Cutting machine

701‧‧‧Clamping seat

7011‧‧‧claw clip

702‧‧‧ support

7021‧‧‧ cylinder group

703‧‧‧Cutter

800, 800’‧‧‧ oil circuit system

801, 801'‧‧‧ inflow line

802, 802'‧‧‧ outflow line

900‧‧‧Coffee take-away cup

A1‧‧‧ arrow

A2‧‧‧ arrow

C‧‧‧Preformed cutting line

D‧‧‧Predetermined convex

G‧‧‧ gap

L‧‧‧ pattern

M‧‧‧ screen printing machine

P1‧‧‧Tubular plastic blank

P11‧‧‧ Ontology

P12‧‧‧ nozzle section

P2‧‧‧heat-resistant plastic parts

S1, S2, S3, S4, S5, S6, S7‧‧ steps

FIG. 1 is a flow chart of a method for forming a heat-resistant plastic cup sleeve according to the present invention.

2 is a schematic view showing that the first mold, the second mold, and the third mold of the present invention have not been clamped.

Figure 3a is a schematic view of the creation after the mold clamping.

Figure 3b is a cross-sectional view taken along line W-W of Figure 3a.

Fig. 4 is a schematic view showing the tubular plastic blank of the present invention extending downward in the mold.

Figure 5 is a schematic view showing the expansion of the tubular plastic blank in the mold.

Fig. 6 is a schematic view showing the forming of a heat-resistant plastic material after the mold is opened.

7a and 7b are schematic views showing the cutting of a heat-resistant plastic material.

Figure 8 is a schematic view of the heat resistant plastic cup sleeve of the present invention.

Figure 9a is a schematic illustration of the oil circuit system in the first mold section of the creation.

Figure 9b is a schematic view of the oil passage system in the third mold portion of the creation.

Figure 10 is a schematic view showing the printing on the outer surface of one of the heat resistant plastic members.

Figure 11 is a longitudinal sectional view of the first mold, the second mold, and the third mold of the present invention taken along the line H-H of Figure 2;

Figure 12a is a perspective view of the heat resistant plastic cup sleeve of the present invention.

Figure 12b is a front elevational view of the heat resistant plastic cup sleeve of the present invention.

Figure 12c is a cross-sectional view taken along line Q-Q of Figure 12a.

Figure 13a is a schematic view of the creation of a heat-resistant plastic cup and a coffee cup Figure.

Figure 13b is a cross-sectional view of Figure 13a (the coffee take-over cup has been placed in a heat resistant plastic cup sleeve).

Figure 13c is a partially enlarged schematic view of the portion T of Figure 13b.

Figure 13d is a partially enlarged schematic view of the U portion of Figure 13b.

The creator of this case must first explain that in the actual implementation of the creation of this case, it can be completed after several workstations, but in order to avoid complicated explanations and confusion of drawings, only the relevant cases related to this case are shown in this creation manual and drawings. Components, other work tools such as conveyors, conveyors, robots, etc. will not be drawn in the drawings of this case.

Referring to Figure 1, the present invention provides a method of forming a heat-resistant plastic cup sleeve comprising the steps of: a) providing a mold having a bottle-shaped cavity, the mold being heated and comprising molds that can be clamped to each other to form a bottle a first mold portion of the mold cavity, a second mold portion and a third mold portion; (S1)b) positioning a tubular plastic blank between the first mold portion, the second mold portion and the third mold portion Forming the first mold portion, the second mold portion and the third mold portion such that one of the tubular plastic blanks is located in the bottle cavity; (S2)c) lowering the nozzle such that the nozzle is pressed against the tubular a nozzle portion of the plastic blank, through which a hollow extension rod is inserted into the body of the tubular plastic blank, and the extension rod is moved downward so that the extension rod pushes the body of the tubular plastic blank (S3)d) blowing a high-pressure gas through a nozzle and an extension rod to expand and cool the body of the tubular plastic blank, respectively; (S4) e) heating and shaping the expanded tubular plastic blank to form a heat-resistant plastic material; (S5) f) Remove the heat-resistant plastic materials and parts (S6); and g) a preformed along a cutting line on a heat resistant plastic material of the plastic parts cut resistant member to form a heat-resistant plastic cup sleeve. (S7)

The foregoing steps will be explained in detail as follows. Referring to FIG. 2, the creator of the present invention provides a method for forming a heat-resistant plastic cup sleeve, which provides a heated mold 100, in order to solve the problems described in the [Prior Art] column. The mold 100 includes a first mold portion 110, a second mold portion 120, and a third mold portion 130. When the first mold portion 110, the second mold portion 120, and the third mold portion 130 are clamped to each other, the mold 100 is A bottle-shaped cavity 100a is formed therein (as shown in FIG. 3).

As shown in FIG. 2, FIG. 3a and FIG. 3b, in a workstation (not shown), a tubular plastic blank P1 is first grasped by a robot arm (not shown) (the tubular plastic blank P1 has a body P11 and A nozzle portion P12) is positioned between the first mold portion 110, the second mold portion 120 and the third mold portion 130 (the mechanical arm preferably grips the nozzle portion P12), and then clamps the mold (see the figure). The direction of the arrow in 3a) the first mold portion 110, the second mold portion 120, and the third mold portion 130 (as shown in Fig. 3a) such that the body P11 of the tubular plastic blank P1 is located within the bottle mold cavity 100a.

In one embodiment, the tubular plastic blank P1 of step b) is subjected to a heat treatment, for example, heating the tubular plastic blank P1 by a heating tube in a workstation, so that the temperature of the tubular plastic blank P1 reaches 100 degrees. C to 150 degrees C (not shown), but heating the tubular plastic blank P1 is not limited to this embodiment.

Referring to FIG. 3a and FIG. 3b, the nozzle N is lowered so that the nozzle N is pressed against the nozzle portion P12 of the tubular plastic blank P1, and a hollow extension rod 200 is inserted through the nozzle N into the tubular plastic blank P1. Inside the body P11 (as shown in Figure 4). The extension rod 200 is moved downward in the y-axis direction in the coordinate system shown in Fig. 4, so that the extension rod 200 pushes the body P11 of the tubular plastic blank P1 to extend and lengthen the body P11 in the y-axis direction. Continuing to refer to FIG. 4, a high pressure gas is supplied through a device (not shown) in the workstation, and the high pressure gas is sprayed through the arrow direction A1 shown in FIG. Mouth N (please refer to Fig. 3b, there is a gap G between the extension rod 200 and the nozzle N, through which the high-pressure air is blown, for easy understanding, in the figure, the gap G is intentionally enlarged) to blow the tubular plastic blank P1 ( In one embodiment, the high pressure gas blown in the direction of the arrow A1 can reach 36 kg/cm 2 to 38 kg/cm 2 , but not limited thereto, thereby making the body P11 of the tubular plastic blank P1 in FIG. 4 and FIG. 5 cases of the coordinate system are expanded in the X-axis direction (the above-mentioned operation mode is commonly referred to as "biaxial extension" in the industry) and conform to the shape of the bottle-shaped cavity 100a, and then the high-pressure gas is continuously blown by the arrow direction A1 (at this time) The high-pressure gas is about 30kg/cm2 to 32kg/cm2, but not limited thereto to stabilize the shape of the body P11 of the tubular plastic blank P1 (the expanded body P11 directly touches the mold 100 having a higher temperature) In order to avoid the heat shrinkage of the body P11, the high-pressure gas is continuously blown, and at the same time, a high-pressure gas (about 30 kg/cm 2 of the high-pressure gas at this time, but not limited thereto) is poured into the hollow extension by the arrow direction A2. The rod 200 transmits the high pressure gas through the gas on the surface of the extension rod 200 from a direction perpendicular to the y-axis direction. Holes (not shown) are blown out to cool the body P11 of the tubular plastic blank P1 (to avoid heat shrinkage of the body P11), and the positions of the air holes (not shown) may be differently distributed as needed, but this This is not an important technical feature of this case. It is not mentioned here (the extension rod here is a common tool used in the general industry for blow molding, so it is not described here).

Next, the shaped tubular plastic blank P1 is heated by the heated mold 100, and the tubular plastic blank P1 is heated and shaped into a heat-resistant plastic material P2.

Referring to FIG. 6, after the mold 100 is opened (ie, the first mold portion 110, the second mold portion 120, and the third mold portion 130 are separated), the heat-resistant plastic material P2 is taken out.

Please refer to FIG. 7a and FIG. 7b, which shows the cutting of the heat-resistant plastic material P2. One of the embodiments of the method. In the figure, the heat-resistant plastic material P2 is sent to a cutting machine 700. The cutting machine 700 includes a clamping seat 701, a supporting base 702 and all the knives 703. The clamping base 701 includes a plurality of claws 7011 (in the figure). 7b is shown as 3 claw clips 7011, but not limited to this). The bottom of the heat-resistant plastic material P2 is held by a plurality of claws 7011 of the holder 701. The support base 702 can include a cylinder block 7021 that abuts against the top of the heat resistant plastic material P2. The cutter 703 is aligned with a pre-formed cutting line C of the heat-resistant plastic material P2. When cutting is performed, a power source (not shown) drives the holder 701 to rotate (as indicated by the arrow direction in Fig. 7b) so that the cutter 703 is cut along the preformed cutting line C on the heat-resistant plastic member P2. After removing the cut portion, the heat-resistant plastic material P2 becomes the heat-resistant plastic cup 300 shown in FIG.

Referring to Figure 9a, as previously described, the mold 100 is first heated, and the present invention provides a heat source. In the embodiment in which the heat source is provided, an oil circuit system 800 is provided in the mold 100 (in Figure 9a). Taking the first mold portion 110 as an example, the second mold portion 120 also includes the oil passage system 800, which is symmetrical with the first mold portion 110, so that the oil passage system 800 includes a plurality of inflow lines 801 and an outflow tube. Road 802, a hot oil is poured from the inflow line 801 into the mold 100 to increase the temperature of the mold 100, and the hot oil flows out of the mold 100 from the outflow line 802 (refer to the direction of the arrow shown in Figure 9a). In addition, referring to FIG. 9b, the third mold portion 130 includes an oil passage system 800' including an inflow line 801' and a first-class outlet line 802'. For the flow direction of the hot oil in the oil passage system 800', please refer to FIG. 9b. The direction of the arrow shown (Figure 9b is only a simple schematic of the oil circuit, not limited to this).

In one embodiment, the hot oil is a hot kerosene having the following characteristics: high conductivity and high temperature resistance. When the hot oil is supplied to the oil system 800, the hot oil (hot kerosene) is first heated to 160 degrees C to 175 degrees C in the workstation (but not limited to this). The hot oil is supplied to the inflow line 801; in addition, the hot oil supplied to the third mold 130 is first heated in the workstation to 70 degrees C to 90 degrees C (but not as this) limit).

Referring to FIG. 10, between steps f) and g) of the present creation, a step of "printing a pattern L on an outer surface of the heat-resistant plastic material P2" is further included. The embodiment shown in the present application, but not limited thereto, places the heat-resistant plastic material P2 on a screen printing machine M, and prints the pattern L on one of the heat-resistant plastic parts P2 by screen printing. The outer surface. At the time of printing, high-pressure air can also be blown into the heat-resistant plastic material P2 to support the heat-resistant plastic material P2 with high-pressure air to facilitate the printing operation (not shown).

As seen from FIG. 11, the first mold portion 110 includes a first cavity 111, and the second mold portion 120 includes a second cavity 121. The shapes of the first cavity 111 and the second cavity 121 are symmetrical to each other. At the time of molding, the third mold portion 130 is sandwiched between the bottom of the first mold portion 110 and the bottom of the second mold portion 120. The first cavity 111 and the second cavity 121 each include an upper groove segment 112, 122 and a lower groove segment 113, 123. The lower groove segments 113, 123 are respectively provided with a plurality of faces facing the first cavity 111 and a second portion. The first convex portions 114, 124 and the second convex portions 115, 125 protruding in the cavity 121. Further, the top end of the third mold portion 130 protrudes toward the bottle-shaped cavity 100a by an annular convex portion 131.

In one embodiment, at least two of the first convex portions 114, 124 are respectively disposed at upper and lower ends of the lower groove segments 113, 123.

In one embodiment, the first protrusions 114, 124 at the upper and lower ends of the lower groove segments 113, 123 extend laterally along the inner surfaces of the lower groove segments 113, 123, respectively (although FIG. 11 The first convex portions 114, 124 are continuously extended laterally, but in another embodiment, the first convex portions 114, 124 may also be discontinuously laterally Extension (not shown in the figure)). Alternatively, the first convex portions 114, 124 may extend in a wave shape along the inner surfaces of the lower groove segments 113, 123, respectively (not shown).

In one embodiment, the second protrusions 115 and 125 are respectively disposed at lower ends of the lower groove segments 113 and 123 and extend laterally below the first protrusions 114 and 124 .

In an embodiment, the second protrusions 115 are spaced apart from each other (although the second protrusions 115 shown in FIG. 11 are equally spaced from each other, in another embodiment, the second protrusions are The portions 115 can also be symmetrically spaced from one another (not shown).

Referring to FIG. 11 again, a predetermined convex portion D is disposed between the upper groove segments 112, 122 and the lower groove segments 113, 123. The predetermined convex portion D corresponds to the preheating on the heat-resistant plastic material P2. Forming the cutting line C.

Referring to Figures 12a, 12b and 12c, the present invention further provides a heat-resistant plastic cup cover 300 comprising: an annular cup bottom 301; a ring side wall 302 extending upward from the annular cup bottom 301 and being divergent; The inner space 303 defined by the ring side wall 302 and the annular cup bottom 301; the plurality of first convex portions 304 and the second convex portion 305 protruding from the ring side wall 302 toward the inner space 303; and an annular convex portion 306 (refer to the figure) 12c) projecting from the annular cup bottom 301 toward the inner space 303.

In one embodiment, at least two of the first protrusions 304 surround the ring sidewall 302 (although at least two of the first protrusions 304 are shown to continuously surround the ring sidewall 302, but in another implementation In this manner, the first protrusion 304 may also discontinuously surround the ring sidewall 302 (not shown). Alternatively, at least two of the first protrusions 304 wrap around the ring sidewalls 302 (not shown).

In one embodiment, at least two of the first protrusions 304 are adjacent the top and bottom ends of the ring sidewall 302, respectively.

In an embodiment, the second protrusions 305 are disposed at the bottom end of the ring sidewall 302 and below the first protrusions 304 .

In an embodiment, the second protrusions 305 are spaced apart from each other (although the second protrusions 305 are shown as being equally spaced from each other, in another embodiment, the second protrusions 305 may also be mutually Symmetrically spaced).

In one embodiment, a pattern L is provided on an outer surface of the annular wall 302.

In an embodiment, the pattern L is located between at least two of the first protrusions 304.

Referring to FIG. 11 and FIG. 12c simultaneously, it can be seen from the figure that the heat-resistant plastic cup sleeve 300 formed by the method of the present invention has an annular convex portion 306 of the annular cup bottom 301 corresponding to the annular convex portion 131 of the third mold portion 130. The shape of the ring side wall 302 of the heat-resistant plastic cup sleeve 300 corresponds to the shape of the lower portion 113, 123 of the first cavity 111 and the second cavity 121 after clamping; the first convex portion 304 of the heat-resistant plastic cup 300 Corresponding to the shape of the first convex portion 114, 124 corresponding to the first cavity 111 and the second cavity 121 after clamping; the second convex portion 305 of the heat-resistant plastic cup 300 corresponds to the first cavity 111 and the second die The second convex portions 115, 125 of the hole 121 are in the shape after the mold clamping; the upper groove portions 112, 122 of the first cavity 111 and the second cavity 121 correspond to the tubular plastic blanks in Figs. 7a and 7b. P2 is shaped by the top (cut portion) that is abutted by the cylinder group 7021.

The creator of the present invention has explained that the first convex portion 304 and the second convex portion 305 of the heat-resistant plastic cup cover 300 of the present invention are protruded from the ring side wall 302 toward the inner space 303. This type of structure is suitable to be formed by the method of the present invention, because after the heat-resistant plastic material P2 is molded, the heat-resistant plastic material P2 is opened at the first mold portion 110, the second mold portion 120, and the third mold portion 130 ( Removed from each other) and then removed (as shown by the arrow in Figure 6), According to this demolding manner, the first convex portion 114, 124 or the second convex portion 115, 125 on the first mold portion 110 and the second mold portion 120 does not get stuck with the heat-resistant plastic material P2, so that it does not cause failure. Demoulding or damaging the heat-resistant plastic material P2 during demolding.

As described in the column [Prior Art], this creation is to prevent the coffee from accidentally leaking from the bottom of the coffee cup. For this reason, the creation provides a heat-resistant plastic cup 300, see Figure 13a, Figure 13b. It is intended to put a coffee take-out cup 900 into the inner space 303 of the heat-resistant plastic cup cover 300 (the author suggests that the size of the coffee take-out cups of each chain brand is different, so the heat-resistant plastic cup cover 300 of the present creation must be in accordance with The size of the various coffee take-away cups and the different thicknesses required by each merchant for the heat-resistant plastic cup 300 are customized. As can be seen from the figure, the first convex portion 304 of the heat-resistant plastic cup 300 will abut against the coffee outer cup 900, so that the coffee outer cup 900 does not directly touch the inner surface of most of the heat-resistant plastic cup 300 (please include Refer to Figure 13c) to achieve the effect of thermal insulation. In addition, the figure shows two first convex portions 304, one near the top end of the ring side wall 302 and the other near the bottom end of the ring side wall 302. This is one embodiment, and the number of the first convex portions 304 is not limit.

In addition, in the embodiment shown in FIGS. 13a, 13b and 13d, the second convex portion 305 (four second convex portions in this embodiment, but not limited to this number) is directed to the heat-resistant plastic cup cover 300. The inner space 303 protrudes to a greater extent than the first convex portion 304 protrudes toward the inner space 303 of the heat-resistant plastic cup 300, so that the second convex portion 305 does not only abut against the coffee outer cup 900, and the second convex portion 305 The coffee outer cup 900 is pressed to a greater extent than the first convex portion 304 so that the coffee outer cup 900 can be stably placed in the inner space 303 of the heat-resistant plastic cup 300. Furthermore, Figure 13b also shows that the annular projection 306 projecting from the annular cup bottom 301 toward the interior space 303 will support the cup bottom of the coffee take-away cup 900.

The creator of this case would like to explain that the tubular plastic blank P1 of this case is best made of PET, that is, the final formed "heat-resistant plastic cup cover 300" is a PET cup sleeve. The heat-resistant plastic cup sleeve 300 produced by the heat setting method of the present invention can be heat-resistant (about 90 degrees C or so, which is a heat-resistant cup sleeve) and is resistant to acid and alkali, and if the bottom of the coffee cup 900 is broken, the coffee is released. The heat-resistant plastic cup cover 300 can directly contain the leaked coffee without causing the coffee to burn the consumer, and the consumer does not have to worry about the deformation of the heat-resistant plastic cup 300 after the heat-resistant plastic cup 300 is subjected to the heat of the coffee. In addition, the heat-resistant plastic cup cover 300 formed by the method of the present invention has an annular cup bottom 301 and a ring side wall 302 integrally formed, which is less likely to cause the bottom of the heat-resistant plastic cup cover 300 to be broken.

The PET material itself has a feature of being transparent, which allows the consumer to directly and clearly see the various patterns displayed on the coffee take-away cup 900 through the heat-resistant plastic cup 300.

Moreover, the pattern L shown in each drawing of the present invention is merely an illustrative description, and the pattern L is not limited thereto. As mentioned above, the heat-resistant plastic cup cover 300 of the present invention can be customized for different sizes of various chain brands, and can also be displayed on the outer surface of the heat-resistant plastic cup cover 300 for different brands to be used by each chain brand. Different patterns L. Furthermore, the pattern L may include, in addition to the trademark display, information or advertisements of the product contents (not shown in the drawings).

The creator of this case would like to further explain that the current chain coffee shop is usually placed one by one to stack the coffee cups 900 one on top of the other. When the coffee is brewed, the coffee cups are taken out one by one. 900. However, the outer surface of the coffee take-away cup 900 is usually printed with the relevant trademark pattern, text or product information. When the coffee cups 900 are nested on each other, the patterns, texts or product information printed on the outer surface and another coffee take-out The inner surfaces of the cup 900 rub against each other, so it is likely A small amount of dye (e.g., toluene, etc.) remains on the inner surface of the other coffee cup 900. When brewing coffee, these dyes are also dissolved in the coffee and drunk by the consumer. This is a certain level of food safety issues. If the heat-resistant plastic cup 300 of the present invention is used, the pattern can be directly printed on the heat-resistant plastic cup 300, and the outer surface of the coffee-away cup 900 will not need to be printed any more. This eliminates the consumer's doubts about drinking the dye while tasting the coffee.

In addition, when the mold is made, the desired pattern may be previously set in the cavity of the mold, which may cause the pattern to be directly formed on the outer surface of the formed heat-resistant plastic material when the shaped tubular plastic blank is heated ( This embodiment does not plot such an implementation).

300‧‧‧heat-resistant plastic cup cover

301‧‧‧ring cup bottom

302‧‧‧ ring side wall

303‧‧‧Internal space

304‧‧‧First convex

305‧‧‧second convex

L‧‧‧ pattern

Claims (7)

A heat-resistant plastic cup sleeve comprising: an annular cup bottom; a ring side wall extending upward from the bottom of the annular cup and being divergent; an inner space defined by the side wall of the ring and the bottom of the annular cup; a first convex portion and a second convex portion projecting from the side wall of the ring toward the inner space; and an annular convex portion projecting from the bottom of the annular cup toward the inner space. The heat-resistant plastic cup sleeve of claim 1, wherein at least two of the first protrusions surround the side wall of the ring. The heat-resistant plastic cup sleeve of claim 2, wherein at least two of the first protrusions are respectively adjacent to a top end and a bottom end of the side wall of the ring. The heat-resistant plastic cup sleeve according to claim 1, wherein the second protrusions are disposed at a bottom end of the side wall of the ring and below the first protrusions. The heat-resistant plastic cup sleeve of claim 4, wherein the second protrusions are spaced apart from each other. The heat-resistant plastic cup sleeve according to claim 1, wherein a pattern is set in the An outer surface of the annular wall. The heat-resistant plastic cup cover according to any one of claims 1 to 6, wherein the heat-resistant plastic cup sleeve is a PET cup sleeve.