Double-color forming anti-slip holding breathing mask and mold thereof

Abstract

The invention relates to a double-color molded anti-slip holding breathing mask and a mold thereof. The breathing mask comprises a mask body and a buffer body, the cover body is formed by injection molding of a first composition and comprises a shell cover part surrounding a central axis and defining an air inlet hole, a flange extending from the shell cover part in the direction perpendicular to the central axis, and a holding part arranged on the flange and defining a groove together with the flange and the shell cover part. The housing portion further defines a face space communicating with the air inlet, and the flange is provided with an inner surface adjacent to the face space and an outer surface opposite to the inner surface. And the holding part is convexly arranged on the outer surface of the flange. The buffer body is formed by injection molding of a second composition, the hardness of the buffer body is smaller than that of the cover body, and the buffer body surrounds and is connected with the cover body. The holding part and the groove can be used for the hands of the medical personnel to be clamped or abutted against, so that the hands of the medical personnel are prevented from slipping off from the breathing mask.

Description

Technical Field

[0001] The present invention relates to a breathing mask, in particular to a two-color molded anti-slip grip breathing mask and its mold. Background Art

[0002] An existing breathing mask includes a mask portion, a tracheal portion provided on the mask portion, an airbag surrounding and connecting the mask body for fitting to the user's face, and a nozzle provided on the airbag. The mask portion and the tracheal portion are made of transparent plastic, and the airbag is made of polyvinyl chloride (PVC). When the user wears the breathing mask, medical staff can pass oxygen into the breathing mask through the tracheal portion to provide oxygen to the user, or pass anesthetic gas into the breathing mask to anesthetize the user during the user's operation.

[0003] However, the breathing mask has the following disadvantages:

[0004] When the breathing mask is used as an anesthesia mask, since the user is usually in a supine position during the operation, at this time, medical staff need to first hold the breathing mask and cover it down on the user's face to help the user wear the breathing mask. However, due to the medical staff wearing gloves, the hand is prone to slip off the breathing mask when putting on the breathing mask for the user, resulting in difficult wearing, which not only causes inconvenience in operation but also causes discomfort to the user.

[0005] In addition, the airbag is prone to rupture due to its thin material, and the pressure inside the airbag is affected by the external air pressure change and thus expands or contracts, reducing the fitting degree between the breathing mask and the user's face and causing the gas inside the breathing mask to leak out.

[0006] An existing hot runner mold disclosed in Chinese Patent Publication No. CN105500631B includes a mold and a hot runner nozzle provided in the mold. The hot runner nozzle has a nozzle body, a terminal housing provided on the nozzle body, a plurality of nozzles provided on the terminal housing, and a heater provided on the nozzle. Since the volume of the hot runner nozzle is large and the temperature of the mold will increase when the heater generates heat, the hot runner mold has the disadvantages of large mold size, high mold manufacturing cost, and unstable control of the finished product temperature due to the influence of the heater temperature on the mold temperature.

[0007] An existing three-plate mold disclosed in the new patent publication number TWM428843U in Taiwan, China, sequentially includes an upper fixing plate, a stripping plate, and a female template from top to bottom. A pouring channel is provided on the fixing plate, a channel for communicating with the pouring channel is provided on the stripping plate, a sprue channel for communicating with the channel is provided on the female template, and a female mold core communicating with the sprue channel. When using the three-plate mold, first, the upper fixing plate, the stripping plate, and the female template are pressed against each other, and the molten injection molding raw material is injected from the pouring channel into the sprue channel and the female mold core to form a product in the female mold core. Then, the upper fixing plate, the stripping plate, and the female template are separated from each other, and the residue formed in the sprue channel is pushed away from the stripping plate by a spring block. The three-plate mold has the disadvantages of high mold cost, large volume, more residue generated after injection molding, and higher raw material cost. Moreover, due to the relatively complex structure of the three-plate mold, the three-plate mold also has the disadvantages of large mold size, low structural strength, and heavy weight. Summary of the Invention

[0008] The purpose of the present invention is to provide a two-color molding anti-slip grip breathing mask that can improve at least one of the aforementioned disadvantages.

[0009] The two-color molding anti-slip grip breathing mask of the present invention includes a mask body and a buffer body. The mask body is injection molded from a first composition and includes a shell cover portion that surrounds a central axis and defines an air inlet hole, a flange that extends from the shell cover portion in a direction perpendicular to the central axis, and a grip portion provided on the flange and jointly defining a groove with the flange and the shell cover portion. The shell cover portion also defines a facial space communicating with the air inlet hole. The flange has an inner surface adjacent to the facial space and an outer surface opposite to the inner surface. The grip portion protrudes from the outer surface of the flange in a direction parallel to the central axis. The buffer body is injection molded from a second composition and has a hardness less than that of the mask body. The buffer body surrounds and connects to the mask body.

[0010] In the two-color molding anti-slip grip breathing mask of the present invention, the shell cover portion has an intermediate section, a trachea connected to the intermediate section and defining the air inlet hole around the central axis, a chin section that gradually expands and extends from the intermediate section along the longitudinal axis perpendicular to the central axis and connects to the flange, and a nose bridge section that gradually tapers and extends from the side of the intermediate section opposite to the chin section. The grip portion and the flange, the chin section jointly define the groove.

[0011] The two-color molded anti-slip grip breathing mask of the present invention, wherein the grip portion extends in a long plate shape along a direction transverse to the longitudinal axis, and the grip portion has a first side surface connected to the outer surface of the flange and adjacent to the groove, a second side surface opposite the first side surface and connected to the outer surface of the flange, and a connection surface connected between the first side surface and the second side surface and away from the flange.

[0012] The two-color molded anti-slip grip breathing mask of the present invention, wherein the grip portion has a plurality of bumps protruding from the outer surface of the flange at intervals along a direction transverse to the longitudinal axis.

[0013] The two-color molded anti-slip grip breathing mask of the present invention, wherein the grip portion has a long strip segment extending along a direction transverse to the longitudinal axis and connected to the outer surface of the flange, and a groove recessed in the long strip segment along the extension direction of the long strip segment.

[0014] The two-color molded anti-slip grip breathing mask of the present invention, wherein the grip portion has a long strip segment extending along a direction transverse to the longitudinal axis and connected to the outer surface of the flange, and a plurality of convex segments extending from the long strip segment toward the chin segment, and the convex segments are spaced from each other along the extension direction of the long strip portion.

[0015] The two-color molded anti-slip grip breathing mask of the present invention, wherein the housing portion has a middle segment, a chin segment gradually expanding and extending from the middle segment along the longitudinal axis perpendicular to the central axis, and a nose bridge segment gradually shrinking and extending from one side of the middle segment opposite to the chin segment, the flange extends along the edge of the housing portion from one side of the middle segment along a direction perpendicular to the longitudinal axis through the chin segment to the other side of the middle segment, the grip portion has four bumps, one of the bumps is disposed on the flange and adjacent to the chin segment, another one is disposed on the nose bridge segment, and the other two are disposed on the flange and are respectively located on two opposite sides of the middle segment along a direction transverse to the longitudinal axis.

[0016] Another object of the present invention is to provide a mold for a two-color molded anti-slip grip breathing mask that can improve at least one of the foregoing disadvantages.

[0017] The mold of the two-color molded anti-slip grip breathing mask according to the present invention is used to manufacture at least one two-color molded anti-slip grip breathing mask. The at least one two-color molded anti-slip grip breathing mask includes a mask body injection-molded from a first composition and a buffer body injection-molded from a second composition. The mask body includes a shell mask portion, a flange connecting the shell mask portion, and a grip portion protruding from the flange. The buffer body surrounds and connects the mask body and has a hardness less than that of the mask body. The mold of the two-color molded anti-slip grip breathing mask includes a male mold and a female mold. The male mold includes a male seat body having a first inner side surface and at least one first male mold unit provided on the male seat body. The at least one first male mold unit has a first mold cavity formed on the first inner side surface, a first male mold surface defining the first mold cavity, and a first male mold port formed on the first inner side surface and communicating with and adjacent to the first mold cavity. The female mold includes a female seat body having a second inner side surface, a first channel unit formed on the female seat body for injecting the first composition, a second channel unit formed on the female seat body for injecting the second composition, at least one first female mold unit provided on the female seat body, and at least one second female mold unit provided on the female seat body. The at least one first female mold unit has a first female mold surface protruding from the second inner side surface. The at least one second female mold unit has a second female mold surface protruding from the second inner side surface and a female mold port formed on the second inner side surface. The female mold port is adjacent to the second female mold surface and communicates with the second channel unit. When the male mold moves relative to the female mold to a first mold closing position, the first male mold surface and the first female mold surface jointly define a first chamber communicating with the first male mold port. The first chamber communicates the first male mold port with the first channel unit. The first chamber is used to mold the mask body. The first chamber includes a body area for molding the shell mask portion and an extension area extending inward from the body area toward the first male mold surface and for molding the grip portion. The extension area is adjacent to and communicates with the first male mold port. When the male mold moves relative to the female mold to a second mold closing position, the first male mold surface and the second female mold surface jointly define a finished product chamber. The finished product chamber includes the first chamber and a buffer chamber communicating with the first chamber and the female mold port and for molding the buffer body.

[0018] For the mold of the two-color molded anti-slip grip breathing mask according to the present invention, the male mold and the female mold are closed along a first axial direction. When the male mold is in the second mold closing position, the first male mold port and the female mold port are located on the same side of the finished product chamber in a direction perpendicular to the first axial direction.

[0019] The mold of the two-color molded anti-slip grip breathing mask according to the present invention is used to manufacture a plurality of two-color molded anti-slip grip breathing masks. The male mold and the female mold are closed along the first axis. The male mold includes four first male mold units, and the first male mold units are arranged in a 2×2 pattern separated by a dividing axis and a first axis. The dividing axis extends along a second axis perpendicular to the first axis, and the first axis extends along a third axis perpendicular to the first axis and the second axis. The first male mold orifice of each of the first male mold units is located between the dividing axis and the respective corresponding first male mold surface, and a first distance is defined between each of the first male mold orifices and the first axis. The female mold includes four first female mold units and four second female mold units. The first female mold units are spaced apart from the second female mold units along the second axis. The first female mold units are arranged in a 2×2 pattern separated by the dividing axis and the first axis. The second female mold units are arranged in a 2×2 pattern separated by the dividing axis and a second axis parallel to the first axis. The female mold orifice of each of the second female mold units is located between the dividing axis and the respective corresponding second female mold surface and communicates with the second channel unit. Each of the female mold orifices is adjacent to the respective second female mold surface and defines a second distance less than the first distance with the second axis.

[0020] The beneficial effects of the present invention are as follows: For the breathing mask manufactured by using the mold, when medical personnel hold the breathing mask with different gestures or angles while wearing gloves, the holding part and the groove can be used for the hands of medical personnel to be clamped or abutted, so as to prevent the hands of medical personnel from slipping off the breathing mask. It can not only improve the operation efficiency of wearing, but also reduce the discomfort caused by the excessive pressure exerted by medical personnel when wearing the mask for patients. Brief Description of the Drawings

[0021] Figure 1 is a perspective view of the first embodiment of the two-color molded anti-slip grip breathing mask of the present invention;

[0022] Figure 2 is a top view of the first embodiment;

[0023] Figure 3 is along Figure 2 an incomplete cross-sectional view taken along line III-III in

[0024] Figure 4 is a schematic diagram of the first embodiment worn on a patient;

[0025] Figure 5 is a perspective view of the second embodiment of the two-color molded anti-slip grip breathing mask of the present invention;

[0026] Figure 6It is a perspective view of the third embodiment of the double-color molded anti-slip grip breathing mask of the present invention;

[0027] Figure 7 It is a perspective view of the fourth embodiment of the double-color molded anti-slip grip breathing mask of the present invention;

[0028] Figure 8 It is a perspective view of the fifth embodiment of the double-color molded anti-slip grip breathing mask of the present invention;

[0029] Figure 9 It is a perspective combined view of an embodiment of the mold of the double-color molded anti-slip grip breathing mask of the present invention;

[0030] Figure 10 It is a partial perspective cross-sectional view of the said embodiment;

[0031] Figure 11 It is a perspective exploded view of a male mold and a female mold of the said embodiment;

[0032] Figure 12 It is an incomplete front view of the male mold of the said embodiment;

[0033] Figure 13 It is an incomplete front view of the female mold of the said embodiment;

[0034] Figure 14 It is an incomplete cross-sectional view showing that the male mold of the said embodiment is in a first mold closing position relative to the female mold;

[0035] Figure 15 It is along Figure 14 An incomplete cross-sectional view taken along line XV-XV in;

[0036] Figure 16 It is an incomplete cross-sectional view showing that the male mold of the said embodiment is rotated 180 degrees and then re-closed with the female mold, and the male mold is in a second mold closing position relative to the female mold; and

[0037] Figure 17 It is along Figure 16 An incomplete cross-sectional view taken along line XVII-XVII in. Detailed Description of the Preferred Embodiment

[0038] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0039] Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

[0040] Refer to Figures 1 to 3, a first embodiment of the dual - color - molded anti - slip grip breathing mask 100 of the present invention includes a mask body 1 and a buffer body 2.

[0041] The mask body 1 includes a shell cover portion 11, a flange 12, and a grip portion 13.

[0042] The shell cover portion 11 has a middle section 111, a trachea 112 connected to the middle section 111, a chin section 113 connected to the middle section 111, and a nose bridge section 114 connected to the middle section 111.

[0043] The trachea 112 defines an air inlet hole 115 around a central axis LC. The chin section 113 extends gradually wider from the middle section 111 along a longitudinal axis D perpendicular to the central axis LC. The nose bridge section 114 extends gradually narrower from a side of the middle section 111 opposite the chin section 113. The shell cover portion 11 defines a facial space 116 communicating with the air inlet hole 115.

[0044] The flange 12 partially surrounds the shell cover portion 11. The flange 12 extends along the edge of the shell cover portion 11 from one side in a direction perpendicular to the longitudinal axis D of the middle section 111 through the chin section 113 to the other side of the middle section 111. And a part of the flange 12 extends along the longitudinal D from the chin section 113 of the shell cover portion 11. The flange 12 has an inner surface 121 adjacent to the facial space 116 and an outer surface 122 opposite the inner surface 121.

[0045] The grip portion 13 protrudes on the outer surface 122 of the flange 12 along a direction parallel to the central axis LC, and the grip portion 13 extends in a long - plate shape along a direction transverse to the longitudinal axis D. The grip portion 13 has a first side surface 131 connected to the outer surface 122 of the flange 12, a second side surface 132 opposite the first side surface 131 and connected to the outer surface 122 of the flange 12, and a connecting surface 133 connected between the first side surface 131 and the second side surface 132 and away from the flange 12. The grip portion 13, the flange 12, and the chin section 113 together define a groove 14 adjacent to the first side surface 131.

[0046] The buffer body 2 surrounds and is connected to the mask body 1.

[0047] In this embodiment, the cover 1 is injection-molded from a first composition. The first composition is a polypropylene (PP) composition that is molten when heated. That is to say, the cover 1 is a rigid plastic made of polypropylene. The buffer 2 is injection-molded from a second composition. The second composition is a thermoplastic rubber (TPR) composition that is molten when heated. That is to say, the buffer 2 is made of elastic thermoplastic rubber and has a hardness less than that of the cover 1, and the color of the buffer 2 is also different from that of the cover 1.

[0048] Refer to Figure 3 , and Figure 4 , when a medical staff wears gloves and covers the breathing mask 100 connected to an anesthesia trachea (not shown in the figure) on the face of a lying patient, the mouth and nose of the patient are placed in the face space 116, and the little finger of the medical staff can be inserted into the groove 14 to prevent the hand of the medical staff from slipping off the breathing mask 100 in a direction away from the trachea 112 when adjusting the breathing mask 100. It should be noted that when the medical staff holds the breathing mask 100 in different gestures, other fingers or palms of the medical staff can also be clamped in the groove 14 to achieve the effect of preventing slipping. And, since the buffer 2 is not an airbag made of polyvinyl chloride, it does not have the disadvantage that the material is easily broken, or the airbag is easily affected by external pressure and expands or contracts, thereby reducing the fitting degree with the patient's face.

[0049] Refer to Figure 5 , which is the second embodiment of the double-color injection-molded anti-slip grip breathing mask 100 of the present invention. The difference from the first embodiment is that the holding part 15 has a plurality of protrusions 151 protruding from the outer surface 122 of the flange 12 at intervals in a direction transverse to the longitudinal axis D. Similarly to the first embodiment, the fingers of the medical staff can be clamped in the groove 14 between the protrusion 151 and the chin section 113. The protrusion 151 can provide support or reliance for the fingers or palms of the medical staff, so the same effect as the first embodiment can be achieved.

[0050] Refer to Figure 6, which is the third embodiment of the dual - color - molded anti - slip grip breathing mask 100 of the present invention. The difference from the first embodiment is that the grip portion 16 has a long strip segment 161 extending in a direction transverse to the longitudinal axis D and connected to the outer surface 122 of the flange 12, and a groove 162 extending along the extension direction of the long strip segment 161 and recessed in the long strip segment 161. Similarly to the first embodiment, the fingers or palms of medical personnel can be clamped in the groove 14 between the grip portion 16 and the chin segment 113, or abutted in the groove 162, so the same effect as the first embodiment can be achieved.

[0051] Refer to Figure 7 , which is the fourth embodiment of the dual - color - molded anti - slip grip breathing mask 100 of the present invention. The difference from the first embodiment is that the grip portion 17 has a long strip segment 171 extending in a direction transverse to the longitudinal axis D and connected to the outer surface 122 of the flange 12, and a plurality of convex segments 172 extending from the long strip segment 171 toward the chin segment 113. The convex segments 172 are spaced from each other along the extension direction of the long strip segment 171. Similarly to the first embodiment, the fingers of medical personnel can be clamped in the groove 14 between the grip portion 17 and the chin segment 113. The long strip segment 171 and the convex segments 172 can provide support or reliance for the fingers or palms of medical personnel, and the convex segments 172 prevent the fingers of medical personnel from sliding along the extension direction of the long strip segment 171, so the same effect as the first embodiment can be achieved.

[0052] Refer to Figure 8 , which is the fifth embodiment of the dual - color - molded anti - slip grip breathing mask 100 of the present invention. The difference from the first embodiment is that the grip portion 18 has four bumps 181. One of the bumps 181 is disposed on the outer surface 122 of the flange 12 and adjacent to the chin segment 113, another one is disposed on the nose bridge segment 114, and the other two are disposed on the outer surface 122 of the flange 12 and are respectively located on two opposite sides of the middle segment 111 in a direction transverse to the longitudinal axis D. Similarly to the first embodiment, the bumps 181 can provide support or reliance for the fingers or palms of medical personnel, and can provide a butting effect in four directions relative to the trachea 112, so the same effect as the first embodiment can be achieved.

[0053] In summary, for the two-color molded anti-slip grip breathing mask 100 of the present invention, when medical personnel hold the breathing mask 100 with different gestures or angles while wearing gloves, the holding portion 13 and the groove 14 located between the holding portion 13 and the chin section 113 can be used for the hands of medical personnel to be caught or abutted against, so as to prevent the hands of medical personnel from slipping off the breathing mask 100. This can not only improve the operation efficiency of wearing, but also reduce the discomfort caused by medical personnel applying too much pressure when wearing the mask for patients. Therefore, the purpose of the present invention can indeed be achieved.

[0054] Refer to Figures 9 to 11 , which is an embodiment of the mold 200 for the two-color molded anti-slip grip breathing mask of the present invention. The mold 200 is used to manufacture the mask of the first embodiment of the aforementioned two-color molded anti-slip grip breathing mask 100.

[0055] The mold 200 includes a male mold 3 and a female mold 4 that is clamped with the male mold 3 along a first axial direction Y.

[0056] With reference to Figure 11 and Figure 12 , the male mold 3 includes a male seat body 31, eight male mold units 32 disposed on the male seat body 31, and two runner ejection assemblies 33 disposed on the male seat body 31. The male seat body 31 has a first inner side surface 311 and a first outer side surface 312 that are oppositely disposed along the first axial direction Y. Each of the male mold units 32 has a cavity 321 formed on the first inner side surface 311, a male mold surface 322 that defines the cavity 321, and a male mold port 323 formed on the first inner side surface 311. Each of the male mold ports 323 communicates with and is adjacent to its corresponding cavity 321. Each of the runner ejection assemblies 33 has three runner ejection rods 331 that extend along the first axial direction Y and are movably passed through the first inner side surface 311.

[0057] For the convenience of subsequent description of the process of the male mold 3 and the female mold 4 cooperating to mold the breathing mask 100, in Figures 12 to 17Four of them on one side of the male mold unit 32 are defined as the first male mold unit 32'. The cavity 321, the male mold surface 322, and the male mold opening 323 of each of the first male mold units 32' are respectively defined as a first cavity 321', a first male mold surface 322', and a first male mold opening 323'. The other four in the male mold unit 32 are defined as the second male mold unit 32". The cavity 321, the male mold surface 322, and the male mold opening 323 of each of the second male mold units 32" are respectively defined as a second cavity 321", a second male mold surface 322", and a second male mold opening 323". One of the runner ejection assemblies 33 is defined as the first runner ejection assembly 33', and the runner ejection rod 331 of the first runner ejection assembly 33' is defined as the first runner ejection rod 331'. The other one of the runner ejection assemblies 33 is defined as the second runner ejection assembly 33", and the runner ejection rod 331 of the second runner ejection assembly 33" is defined as the second runner ejection rod 331".

[0058] The first male mold unit 32' is spaced from the second male mold unit 32" along a second axis X perpendicular to the first axis Y. The first male mold unit 32' is separated by a separation axis LX extending along the second axis X and a first axis L1 perpendicular to the separation axis LX to form a 2X2 arrangement. The first axis L1 extends along a third axis Z perpendicular to the first axis Y and the second axis X. The first male mold opening 323' of each of the first male mold units 32' is located between the separation axis LX and the respective first male mold surface 322'. A first distance d1 is defined between each first male mold opening 323' and the first axis L1.

[0059] The first runner ejection rods 331' are spaced from each other along the second axis X and are located in a plane containing the separation axis LX, and two of the first runner ejection rods 331' are symmetric with respect to the first axis L1, and the other first runner ejection rod 331' is located in the middle of the two first runner ejection rods 331'.

[0060] The second male mold unit 32” is separated by the separation axis LX and a second axis L2 that is perpendicular to the separation axis LX and parallel to the first axis L1 to form a 2X2 arrangement. The second male mold opening 323” of each of the second male mold units 32” is located between the separation axis LX and the respective corresponding second male mold surface 322”. The distance defined between each of the second male mold openings 323” and the second axis L2 is equal to the first distance d1. The second runner ejector rods 331” are spaced apart from each other along the second axis X and are located on a plane containing the separation axis LX, and two of the second runner ejector rods 331” are symmetric with respect to the second axis L2, and the other second runner ejector rod 331” is located in the middle of the two second runner ejector rods 331”.

[0061] Refer to Figure 10 、 Figure 11 and Figure 13 , the female mold 4 includes a female seat body 41, a first channel unit 42 formed in the female seat body 41 for injecting the first composition, a second channel unit 43 formed in the female seat body 41 for injecting the second composition, four first female mold units 44 provided on the female seat body 41, and four second female mold units 45 provided on the female seat body 41.

[0062] The female seat body 41 has a second inner side surface 411 and a second outer side surface 412 that are oppositely arranged along the first axis Y. The first channel unit 42 has a first feeding channel 421 extending from the second outer side surface 412 to the second inner side surface 411, and a first runner 422 formed generally along the second axis X on the second inner side surface 411. The first runner 422 intersects and communicates with the first feeding channel 421 and is positioned corresponding to the first runner ejector rod 331’. The second channel unit 43 has a second feeding channel 431 extending from the second outer side surface 412 to the second inner side surface 411, and a second runner 432 formed generally along the second axis X on the second inner side surface 411. The second runner 432 intersects and communicates with the second feeding channel 431 and is positioned corresponding to the second runner ejector rod 331”.

[0063] The first female mold units 44 are spaced apart from the second female mold units 45 along the second axis X. The first female mold units 44 are separated by the separation axis LX and the first axis L1 to form a 2X2 arrangement. Each of the first female mold units 44 has a first female mold surface 441 protruding from the second inner side surface 411.

[0064] The second female mold unit 45 is separated from the second axis L2 by the separation axis LX and is arranged in a 2×2 pattern. Each of the second female mold units 45 has a second female mold surface 451 convexly provided on the second inner side surface 411, and a mold opening 452 formed on the second inner side surface 411 and located between the separation axis LX and the respective corresponding second female mold surface 451. Two of the mold openings 452 are respectively located on two opposite sides of the second axis L2, and respectively communicate with two opposite ends of the second sub-runner 432. Each of the mold openings 452 is adjacent to the respective corresponding second female mold surface 451 and defines a second distance d2 less than the first distance d1 with the second axis L2.

[0065] Referring to Figure 12 , Figure 14 and Figure 15 , the process of manufacturing the breathing mask 100 by mating the male mold 3 and the female mold 4 is described as follows.

[0066] Step 1: The male mold 3 is closed with respect to the female mold 4 along the first axial direction Y and moved to a first closing position, and the first female mold surfaces 441 respectively extend into the first mold cavities 321'. Each of the first male mold surfaces 322' and the respective corresponding first female mold surface 441 jointly define a first cavity 5. The first cavity 5 includes a body area 51, and an extension area 52 extending from the body area 51 into the first male mold surface 322'. At this time, each of the first male mold openings 323' communicates the respective corresponding first cavity 5 with the respective corresponding extension area 52, and two of the first male mold openings 323' respectively communicate with two opposite ends of the first sub-runner 422.

[0067] Step 2: Referring to Figure 11 , Figure 14 and Figure 15 , after the first composition is injected into the first cavity 5 via the first feeding channel 421, the first sub-runner 422 and the first male mold opening 323', it is cooled to form four aforementioned mask bodies 1 (see Figure 1 , not shown in the figure in Figure 15 ), and a first residue 7 connecting the mask bodies 1 (see Figure 11 , not shown in the figure in Figure 14 and Figure 15)。Each of the shell cover parts 11 and the flanges 12 of each of the cover bodies 1 are formed in their respective corresponding body areas 51, each of the holding parts 15 is formed in its respective corresponding extension area 52, each of the chin segments 113 is adjacent to its respective corresponding first male mold opening 323', and each of the nose bridge segments 114 is farther from the separation axis LX relative to its respective corresponding chin segment 113. The first residue 7 is formed by cooling the first composition in the first feed channel 421 and the first runner 422.

[0068] Step Three: The male mold 3 moves along the first axial direction Y and away from the female mold 4. The first runner ejector rod 331' extends from the male seat body 31 and pushes the first residue 7, causing the first residue 7 to separate from the cover body 1 and fall naturally, and causing the cover bodies 1 to be respectively retained in the first mold cavities 321'. It should be noted that for ease of explanation, in Figure 11 the cover bodies 1 are shown suspended. During the actual manufacturing process, the cover bodies 1 are still respectively located in the first mold cavities 321' at this time. Since each of the first male mold openings 323' communicates with its respective corresponding extension area 52 in Step Two, when the first residue 7 separates from the cover body 1, the feeding point trace (not shown in the figure) at the connection between the first residue 7 and the cover body 1 will be formed in the holding part 15. That is to say, during the injection molding process, the aforementioned feeding point trace can be formed in the holding part 15 together, avoiding the formation of the aforementioned feeding point trace in other parts of the cover body 1 to reduce the waste of excess residue.

[0069] Step Four: Refer to Figure 11 、 Figure 16 and Figure 17 . The male mold 3 rotates 180 degrees around the first axial direction Y and then moves relative to the female mold 4 along the first axial direction Y to a second mold closing position to re-close the mold. The second female mold surface 451 respectively extends into the first mold cavities 321'. Each of the first male mold surfaces 322' and its respective corresponding second female mold surface 451 jointly define a finished product cavity 6. Each of the finished product cavities 6 includes its respective corresponding first cavity 5 and a buffer cavity 61 communicating the first cavity 5 with the female mold opening 452. And, the first female mold surface 441 respectively extends into the second mold cavities 321'' and respectively defines second cavities (not shown in the figure) having the same shape as the first cavities 5 in Figure 15 . And at this time, each of the first male mold openings 323' and its respective corresponding female mold opening 452 are located on the same side of the finished product cavity 6 along the third axial direction Z.

[0070] Step Five: The second composition is injected into the buffer chamber 61 via the second material inlet channel 431, the second diversion channel 432, and the female die orifice 452, and is cooled to form four buffer bodies 2 respectively connecting the cover body 1, and a second residue 8 connecting the buffer bodies 2 (see Figure 11 , the figure is not shown in Figure 16 and Figure 17 ). Each of the buffer bodies 2 and the corresponding cover body 1 together form a breathing mask 100. Moreover, the first composition is injected into the second chamber via the first material inlet channel 421, the first diversion channel 422, and the second male die orifice 323", and is cooled to form another four new cover bodies 1 (refer to the description of Step Two above), and another first residue 7 connecting the cover bodies 1 (refer to the description of Step Two above).

[0071] Step Six: The male die 3 moves along the first axial direction Y and away from the female die 4. Four push rods (not shown) in the male die 3 push out the breathing mask 100 from the first cavity 321'. The first diversion channel ejector rod 331' pushes out the second residue 8 from the male seat body 31, so that the breathing mask 100 and the second residue 8 are separated from the male seat body 31 together. The second diversion channel ejector rod 331" pushes down the first residue 7 (not shown) adjacent to the second cavity 321" and connecting the four newly formed cover bodies 1 (not shown).

[0072] Step Seven: Redefine the original first male die unit 32' as the second male die unit 32", redefine the original second male die unit 32" as the first male die unit 32', and re - execute Steps Four to Six, then the next round of the process of manufacturing the breathing mask 100 can be carried out.

[0073] For the mold 200 of the dual - color - molded anti - slip - grip breathing mask of the present invention, since the second distance d2 defined by each female die orifice 452 and the second axis L2 is less than the first distance d1 defined between each first male die orifice 323' and the first axis L1. When the male die 3 and the female die 4 are closed in Step Six, the second diversion channel 432 does not communicate with the first male die orifice 323'. When the second composition flows into the female die orifice 452 via the second diversion channel 432, it will not enter the first male die orifice 323', so as to avoid the second composition from contaminating the cover body 1. And since the structure of the mold 200 is a two - plate mold, it has the advantages of small volume, simple structure, and low manufacturing cost. Moreover, due to the lack of the structure of the hot runner, the temperature of the mold 200 and the product is not easily affected by the fluid temperature in the hot runner, making the molding quality of the product more stable.

[0074] The above are only embodiments of the present invention, and the scope of implementation of the present invention cannot be limited thereby. All simple equivalent changes and modifications made according to the claims and the content of the specification of the present invention still fall within the scope covered by the present invention.

Claims

1. A two-color molded anti-slip grip breathing mask, comprising a mask body and a buffer body; It is characterized in that: The mask body is injection-molded from a first composition and includes a shell cover portion that surrounds a central axis and defines an air inlet hole, a flange that extends from the shell cover portion in a direction perpendicular to the central axis, and a grip portion that is provided on the flange and jointly defines a groove with the flange and the shell cover portion. The shell cover portion also defines a facial space that communicates with the air inlet hole. The flange has an inner surface adjacent to the facial space and an outer surface opposite to the inner surface. The grip portion protrudes from the outer surface of the flange in a direction parallel to the central axis. The buffer body is injection-molded from a second composition and has a hardness less than that of the mask body. The buffer body surrounds and connects to the mask body.

2. The two-color molded anti-slip grip breathing mask according to claim 1, It is characterized in that: The shell cover portion has an intermediate section, a trachea that is connected to the intermediate section and defines the air inlet hole around the central axis, a chin section that extends gradually wider from the intermediate section along the longitudinal axis perpendicular to the central axis and connects to the flange, and a bridge section that extends gradually narrower from a side of the intermediate section opposite to the chin section. The grip portion and the flange and the chin section jointly define the groove.

3. The two-color molded anti-slip grip breathing mask according to claim 2, It is characterized in that: The grip portion extends in a direction transverse to the longitudinal axis and is in the shape of a long plate. The grip portion has a first side surface that is connected to the outer surface of the flange and is adjacent to the groove, a second side surface that is opposite to the first side surface and is connected to the outer surface of the flange, and a connecting surface that is connected between the first side surface and the second side surface and is away from the flange.

4. The two-color molded anti-slip grip breathing mask according to claim 2, It is characterized in that: The grip portion has a plurality of bumps that protrude from the outer surface of the flange at intervals in a direction transverse to the longitudinal axis.

5. The two-color molded anti-slip grip breathing mask according to claim 2, It is characterized in that: The grip portion has a long strip section that extends in a direction transverse to the longitudinal axis and is connected to the outer surface of the flange, and a groove that extends along the extension direction of the long strip section and is recessed in the long strip section.

6. The two-color molded anti-slip grip breathing mask according to claim 2, It is characterized in that: The grip portion has a long strip section that extends in a direction transverse to the longitudinal axis and is connected to the outer surface of the flange, and a plurality of convex sections that extend from the long strip section toward the chin section. The convex sections are spaced apart from each other along the extension direction of the long strip section.

7. The two-color molded anti-slip grip breathing mask according to claim 1, It is characterized in that: The housing portion has a middle section, a chin section extending gradually wider from the middle section along the longitudinal axis perpendicular to the central axis, and a nose bridge section extending gradually narrower from a side of the middle section opposite to the chin section. The flange extends along the edge of the housing portion from one side of the middle section in a direction perpendicular to the longitudinal axis through the chin section to the other side of the middle section. The holding portion has four bumps, one of the bumps is disposed on the flange and adjacent to the chin section, another one is disposed on the nose bridge section, and the other two are disposed on the flange and are respectively located on two opposite sides of the middle section in a direction transverse to the longitudinal axis.

8. A mold for a two-color molded anti-slip holding breathing mask for manufacturing at least one two-color molded anti-slip holding breathing mask, the at least one two-color molded anti-slip holding breathing mask comprising a mask body injection-molded from a first composition and a buffer body injection-molded from a second composition. The mask body includes a housing portion, a flange connecting the housing portion, and a holding portion protruding from the flange. The buffer body surrounds and connects to the mask body and has a hardness less than that of the mask body. The mold for the two-color molded anti-slip holding breathing mask includes a male mold and a female mold; It is characterized in that: The male mold includes a male seat body having a first inner side surface and at least one first male mold unit disposed on the male seat body. The at least one first male mold unit has a first cavity formed on the first inner side surface, a first male mold surface defining the first cavity, and a first male mold opening formed on the first inner side surface and communicating with and adjacent to the first cavity. The female mold includes a female seat body having a second inner side surface, a first channel unit formed on the female seat body for injecting the first composition, a second channel unit formed on the female seat body for injecting the second composition, at least one first female mold unit disposed on the female seat body, and at least one second female mold unit disposed on the female seat body. The at least one first female mold unit has a first female mold surface protruding from the second inner side surface. The at least one second female mold unit has a second female mold surface protruding from the second inner side surface and a female mold opening formed on the second inner side surface. The female mold opening is adjacent to the second female mold surface and communicates with the second channel unit. When the male mold moves relative to the female mold to a first mold closing position, the first male mold surface and the first female mold surface jointly define a first chamber communicating with the first male mold opening. The first chamber communicates the first male mold opening with the first channel unit. The first chamber is used for molding the mask body. The first chamber includes a body area for molding the housing portion and an extension area extending inward from the body area toward the first male mold surface and for molding the holding portion. The extension area is adjacent to and communicates with the first male mold opening. When the male mold moves relative to the female mold to a second mold closing position, the first male mold surface and the second female mold surface jointly define a finished product chamber. The finished product chamber includes the first chamber and a buffer chamber communicating the first chamber with the female mold opening and for molding the buffer body.

9. The mold of the two-color molded anti-slip grip breathing mask according to claim 8, characterized in that: the male mold and the female mold are closed along a first axis, and when the male mold is in the second closing position, the first male mold opening and the female mold opening are on the same side of the finished product chamber in a direction perpendicular to the first axis.

10. The mold of the two-color molded anti-slip grip breathing mask according to claim 8, for manufacturing a plurality of two-color molded anti-slip grip breathing masks, characterized in that: the male mold and the female mold are closed along a first axis, the male mold includes four first male mold units, the first male mold units are arranged in a 2×2 pattern separated by a separation axis and a first axis, the separation axis extends along a second axis perpendicular to the first axis, the first axis extends along a third axis perpendicular to the first axis and the second axis, the first male mold opening of each of the first male mold units is located between the separation axis and the respective corresponding first male mold surface, a first distance is defined between each of the first male mold openings and the first axis, the female mold includes four first female mold units and four second female mold units, the first female mold units are spaced apart from the second female mold units along the second axis, the first female mold units are arranged in a 2×2 pattern separated by the separation axis and the first axis, the second female mold units are arranged in a 2×2 pattern separated by the separation axis and a second axis parallel to the first axis, the female mold opening of each of the second female mold units is located between the separation axis and the respective corresponding second female mold surface and communicates with the second channel unit, each of the female mold openings is adjacent to the respective corresponding second female mold surface and defines a second distance less than the first distance with the second axis.

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