Plastic uptake box forming mold

Abstract

The utility model discloses a blister box forming mold. The blister box forming mold comprises a lower mold body, a demolding assembly and an upper mold body. A cavity and a movable groove are formed in the lower die, and the movable groove is located beside the cavity. At least one inner side wall of the cavity forms a concave part; the demolding assembly comprises a base and a swing part, and the base can be movably arranged in the movable groove in the height direction; the swing part is rotatably arranged on the base, and the swing part can swing relative to the base and rotate from a first position to a second position; when the swing part is located at the first position, one end, far away from the base, of the swing part is located above the concave part; when the swing part is located at the second position, the swing part leaves the upper part of the concave part; the upper die is used for being combined with the lower die, a male die is arranged on the side, facing the lower die, of the upper die, and the male die can be inserted into the cavity when the upper die and the lower die are combined. And through the running fit of the swing part and the base, the convex part of the blister box can be avoided, so that the blister box can be conveniently demoulded. And through sliding fit of the base and the sliding groove, the demolding process of the convex part of the blister box can be relatively gentle.

Description

Technical Field

[0001] This application relates to the field of blister packaging technology, and in particular to a blister box forming mold. Background Technology

[0002] In the production process of blister boxes, in order to improve the strength of the blister box edges, it is necessary to form convex parts on the sides of the blister box so that the sides of the blister box are not flat, which can improve the bending and tensile strength, thereby improving the strength of the blister box.

[0003] In related technologies, to form a protrusion on the side of the blister pack, a recess needs to be formed on the inner wall of the cavity of the lower mold. Thus, after the blister pack is formed, the protrusion is stuck in the recess. During demolding, because the blister pack has a certain degree of plasticity, the protrusion can be slightly deformed by pulling to allow it to dislodge from the recess. Therefore, there is a risk of deformation of the blister pack. Furthermore, when the protrusion is large and the recess is deep, pulling may not be sufficient to dislodge the protrusion. Utility Model Content

[0004] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a blister box forming mold that facilitates the demolding of blister boxes.

[0005] According to an embodiment of this application, a blister box forming mold includes: a lower mold, a demolding assembly, and an upper mold.

[0006] The lower mold forms a cavity and a movable groove, the movable groove being located beside the cavity; at least one inner sidewall of the cavity forms a recess.

[0007] A demolding assembly includes a base and a swinging part. The base is movably disposed within the movable groove along the height direction. The swinging part is rotatably disposed on the base and can swing relative to the base, rotating from a first position to a second position. When the swinging part is in the first position, the end of the swinging part away from the base is located above the recess. When the swinging part is in the second position, the swinging part is located away from the recess.

[0008] The upper mold is used to close with the lower mold. A punch is provided on the side of the upper mold facing the lower mold. When the upper mold and the lower mold are closed, the punch can be inserted into the cavity. An adsorption structure is formed on the punch.

[0009] According to the blister box forming die, the following beneficial effects can be achieved: After the heated film is transferred between the upper die and the lower die, the male die of the upper die can be inserted into the cavity of the lower die. At this time, the swing part is located at the first position, the upper end of the swing part is flush with the upper end of the lower die, and the lower end of the upper die is pressed on the upper end of the swing part. The male die of the upper die cooperates with the cavity of the lower die to form the blister box, and the swing part cooperates with the recess of the lower die to form the convex part of the blister box. After the blister box is formed, the upper die and the lower die are moved away from each other to open the mold. During the process that the upper die moves away from the lower die, the upper die can give the blister box an upward force due to the suction structure arranged on the male die, so that the blister box has a tendency to move away from the lower die. With the rising of the upper die, the convex part at the side of the blister box will push the swing part located above the convex part and make the swing part rotate to the second position, so that the convex part of the blister box can be smoothly separated from the cavity. In addition, it should be understood that, during the demolding process of the convex part of the blister box, the convex part will give the swing part an upward force. Since the base connected with the swing part can be lifted relative to the sliding groove, the swing part will drive the base to move upward relative to the sliding groove when the swing part is subjected to the force. The pushing force given by the convex part to the swing part is partly used to make the swing part rotate relative to the base and partly used to make the base move upward relative to the sliding groove. When the base is lifted to the limit position of the sliding groove, the base does not continue to rise, and the pushing force from the convex part on the swing part will push the swing part to rotate relative to the base to the second position, so that the swing part is away from the upper side of the recess, thereby facilitating the convex part of the blister box to move away from the recess. Therefore, through the cooperation of the base and the sliding groove, the demolding process of the convex part of the blister box is relatively gentle, and the friction between the convex part and the swing block can be avoided to prevent the convex part from being scratched, thereby improving the finished product quality of the blister box.

[0010] According to some embodiments of the present application, a limiting block is arranged on the base, and a groove corresponding to the limiting block is formed in the swing part. When the swing part rotates relative to the base, the limiting block moves relative to the groove.

[0011] According to some embodiments of the present application, the base forms a first supporting surface, and the groove forms a second supporting surface. When the swing part is located at the first position, the first supporting surface abuts against the second supporting surface.

[0012] According to some embodiments of the present application, the limiting block forms a first limiting surface, and the groove forms a second limiting surface. When the swing part is located at the second position, the first limiting surface abuts against the second limiting surface.

[0013] According to some embodiments of the present application, the first limiting surface is arranged to be inclined, and the first limiting surface is inclined downward from high to low in the direction toward the cavity.

[0014] According to some embodiments of the present application, two sides of the upper end of the base are provided with connecting blocks, and two ends of the swing part are connected with one of the connecting blocks through a rotating shaft respectively; and the limiting block is located between the two connecting blocks.

[0015] According to some embodiments of the present application, a plurality of limiting blocks are provided and distributed along the length direction of the base, and a plurality of grooves are also provided, and the grooves correspond to the limiting blocks one by one.

[0016] According to some embodiments of the present application, a plurality of movable grooves are provided, and the movable grooves surround the cavity, and the inner side walls of the cavity form recesses, and a plurality of demolding assemblies are provided, wherein the movable grooves, the demolding assemblies, and the inner side walls forming the recesses correspond to each other one by one.

[0017] According to some embodiments of the present application, the base and the groove bottom of the movable groove are connected through an elastic part.

[0018] According to some embodiments of the present application, the elastic part includes a fastener and a spring, the spring can be telescoped relative to the fastener, the bottom of the lower mold forms a stepped hole, the stepped hole includes a first hole and a second hole connected in communication, the hole diameter of the first hole is smaller than the hole diameter of the second hole, the first hole communicates with the movable groove, and the second hole penetrates the lower end of the lower mold; the head of the fastener can be lifted and lowered relative to the second hole, and the size of the head of the fastener is larger than the size of the first hole; the rod part of the fastener penetrates the first hole and is connected with the lower end of the base; the spring is sleeved on the rod part of the fastener, and the two ends of the spring abut against the head of the fastener and the inner wall of the second hole respectively.

[0019] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described below in conjunction with the drawings and embodiments, wherein:

[0021] Figure 1 It is a structural schematic view of the blister box forming mold of the embodiment of the present application;

[0022] Figure 2 It is an exploded view of the blister box forming mold of the embodiment of the present application;

[0023] Figure 3 It is a sectional view of part of the structure of the blister box forming mold of the embodiment of the present application;

[0024] Figure 4 It is Figure 2 It is a structural schematic view of the base.

[0025] Figure 5 Fig. 1 is a perspective view of a blister pack according to an embodiment of the present application. Figure 2 Fig. 2 is a perspective view of a structure of a swing block according to an embodiment of the present application.

[0026] Figure 6 Fig. 3 is a sectional view of another part of a structure of a blister pack forming mold according to an embodiment of the present application.

[0027] Reference numerals:

[0028] Lower mold 100, cavity 110, recess 111, movable groove 120, first hole 130, second hole 140;

[0029] Demolding assembly 200, base 210, first support surface 211, limiting block 220, first limiting surface 221, connecting block 230; swing part 240, groove 241, second support surface 242, second limiting surface 243;

[0030] Elastic part 300, fastener 310, head 311, rod 312, spring 320. DETAILED DESCRIPTION

[0031] Embodiments of the present application are described in detail below with reference to the accompanying drawings, examples of which are shown in the drawings, in which the same or similar numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are for the purpose of explaining the present application only, and are not to be understood as limiting the present application.

[0032] In the description of the present application, it should be understood that the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0033] In the description of the present application, if the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, within, etc. are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the order of indicated technical features.

[0034] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0035] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in one or more embodiments or examples.

[0036] With reference to Figures 1 to 3 According to the blister box forming die of the embodiment of the present application, the lower die 100, the demolding assembly 200 and the upper die are provided.

[0037] The lower die 100 is formed with a cavity 110 and a movable groove 120, and the movable groove 120 is located beside the cavity 110; at least one inner side wall of the cavity 110 is formed with a recess 111;

[0038] The demolding assembly 200 includes a base 210 and a swing part 240, and the base 210 is movably arranged in the movable groove 120 in the height direction; the swing part 240 is rotatably arranged on the base 210, and the swing part 240 can swing relative to the base 210 from a first position to a second position; when the swing part 240 is located at the first position, the end of the swing part 240 away from the base 210 is located above the recess 111; when the swing part 240 is located at the second position, the swing part 240 is away from the recess 111;

[0039] The upper die is used for closing with the lower die 100, and the side of the upper die facing the lower die 100 is provided with a male die; when the upper die and the lower die 100 are closed, the male die can be inserted into the cavity 110, and the male die is formed with a suction structure.

[0040] It can be understood that the heated film is transferred between the upper die and the lower die 100, the upper die is inserted into the cavity 110 of the lower die 100 when the upper die and the lower die 100 are closed, at this time, the swing part 240 is located at the first position, the upper end of the swing part 240 is flush with the upper end of the lower die 100, and the lower end of the upper die is pressed on the upper end of the swing part 240. The male die of the upper die cooperates with the cavity 110 of the lower die 100 to form a blister box, and the swing part 240 cooperates with the recess 111 of the lower die 100 to form a convex part of the blister box. After the blister box is formed, the upper die and the lower die 100 are away from each other to open the mold. During the process that the upper die moves away from the lower die 100, the upper die can give the blister box an upward force due to the suction structure arranged on the male die, so that the blister box has a tendency to move away from the lower die 100, and as the upper die rises, the convex part of the side edge of the blister box will push the swing part 240 located above it and make the swing part 240 rotate to the second position, and the swing part 240 moves away from above the recess 111, so that the convex part of the blister box can smoothly separate from the cavity 110. It should also be understood that during the demolding process of the convex part of the blister box, the convex part will give the swing part 240 an upward force, and since the base 210 connected with the swing part 240 can be lifted relative to the sliding groove 120, the swing part 240 will drive the base 210 to move upward relative to the sliding groove 120 when it is subjected to the force. Part of the pushing force of the convex part on the swing part 240 makes the swing part 240 rotate relative to the base 210, and part of the pushing force makes the base 210 move upward relative to the sliding groove 120. When the base 210 rises to the limit position relative to the sliding groove 120, the base 210 does not continue to rise, and the pushing force of the swing part 240 from the convex part will push the swing part 240 to swing to the second position relative to the base 210, and the swing part 240 moves away from above the recess 111, so that the convex part of the blister box can leave the recess. Therefore, through the cooperation of the base 210 and the sliding groove, the demolding process of the convex part of the blister box can be buffered, the demolding process of the convex part is relatively gentle, and the friction between the convex part and the swing block can be avoided to prevent the convex part from being scratched, thereby improving the finished product quality of the blister box.

[0041] With reference to Figures 3 to 5 According to some embodiments of the present application, the base 210 is provided with a limiting block 220, and the swing part 240 is formed with a groove 241 corresponding to the limiting block 220. When the swing part 240 rotates relative to the base 210, the limiting block 220 moves relative to the groove 241.

[0042] It can be understood that through the cooperation of the limiting block 220 and the groove 241, the swing part 240 can be limited to move in the horizontal direction, so that the swing part 240 can only rotate relative to the base 210.

[0043] With reference to Figures 3 to 5According to some embodiments of the present application, the base 210 forms a first support surface 211, and the recess 241 forms a second support surface 242. When the swing portion 240 is in the first position, the first support surface 211 abuts against the second support surface 242.

[0044] It can be understood that, during the swing of the swing portion 240 relative to the base 210, when the swing portion 240 is rotated to the first position, the first support surface 211 abuts against the second support surface 242 to limit the swing portion 240 from continuing to rotate, so that the swing portion 240 is kept in the first position.

[0045] Specifically, the first support surface 211 extends in the horizontal direction, and when the swing portion 240 is in the first position, the swing portion 240 is supported on the first support surface 211 under the action of gravity.

[0046] Referring to Figures 3 to 5 According to some embodiments of the present application, the limiting block 220 forms a first limiting surface 221, and the recess 241 forms a second limiting surface 243. When the swing portion 240 is in the second position, the first limiting surface 221 abuts against the second limiting surface 243.

[0047] It can be understood that, during the swing of the swing portion 240 relative to the base 210, when the swing portion 240 is rotated to the second position, the first limiting surface 221 abuts against the second limiting surface 243 to limit the swing portion 240 from continuing to rotate, so that the swing portion 240 is kept in the second position.

[0048] Referring to Figures 3 to 4 According to some embodiments of the present application, the first limiting surface 221 is obliquely arranged, and the first limiting surface 221 is obliquely arranged from high to low in the direction towards the cavity 110.

[0049] It can be understood that, when the first limiting surface 221 abuts against the second limiting surface 243, the first limiting surface 221 causes the swing portion 240 to have a tendency to swing towards the first position. Thus, after the convex portion is demolded, the swing portion 240 loses the pushing force of the convex portion, and the swing portion 240 will automatically rotate from the second position back to the first position.

[0050] Referring to Figure 2 and Figure 4 According to some embodiments of the present application, the base 210 is provided with two connecting blocks 230 at the two sides of the upper end thereof, and the two ends of the swing portion 240 are respectively connected with one of the connecting blocks through a rotating shaft; and the limiting block 220 is located between the two connecting blocks 230.

[0051] It can be understood that the two connecting blocks 230 are respectively located on both sides of the swing part 240, so as to be capable of cooperating with the limiting blocks 220 to further limit the swing part 240, and the connecting block 230 and the swing part 240 are directly connected through the rotating shaft, so that the swing part 240 can rotate relative to the connecting block 230.

[0052] With reference to Figure 4 According to some embodiments of the present application, the limiting blocks 220 are provided in plurality and are distributed along the length direction of the base 210, and the grooves 241 are also provided in plurality and one-to-one correspond to the limiting blocks 220.

[0053] It can be understood that the swing part 240 is relatively long, and by providing the plurality of limiting blocks 220 and the grooves 241, the limiting effect and the supporting effect on the swing part 240 are improved.

[0054] With reference to Figure 1 and Figure 2 According to some embodiments of the present application, the movable grooves 120 are provided in plurality and surround the cavity 110, and the plurality of inner side walls of the cavity 110 form the recesses 111, and the stripping assembly 200 is provided in plurality, wherein the movable grooves 120, the stripping assembly 200, and the inner side walls forming the recesses 111 one-to-one correspond.

[0055] It can be understood that some suction boxes need to form the protrusions on multiple sides, and thus by providing the plurality of movable grooves 120, the stripping assembly 200, and the inner side walls, the multiple sides of the suction box can form the protrusions, and in the stripping process of the protrusions, the swing part 240 does not affect the stripping of the protrusions by the swing action of the swing part 240.

[0056] With reference to Figure 1 and Figure 2 According to some embodiments of the present application, the cavity 110 is square-shaped, the movable grooves 120 are provided in four, the four movable grooves 120 respectively correspond to one edge of the cavity 110, and the movable grooves 120 extend along the extension direction of the corresponding edge of the cavity 110, and the extension direction of the base 210 and the rotating part corresponding to the movable grooves 120 is consistent with the extension direction of the movable grooves 120.

[0057] It can be understood that the blister box is generally square-shaped, and has four sides, and the four sides all need to form the convex part. Therefore, the lower mold 100 is provided as a cuboid, a square-shaped cavity 110 is formed in the middle of the lower mold 100, and four movable grooves 120 are arranged around the cavity 110, and each movable groove 120 corresponds to an edge of the cavity 110, and the movable groove 120 extends along the extension direction of the corresponding edge of the cavity 110. It should be understood that the length direction of the base 210 and the rotating part is consistent with the extension direction of the movable groove 120, and the length of the base 210 and the rotating part is matched with the length of the four edges of the cavity 110, so as to improve the contact area of the rotating part and the convex part of the blister box. Therefore, after the rotating part is rotated relative to the base 210, the lower mold 100 is less hindered to the convex part, so that the convex part can be more smoothly taken out from the cavity 110.

[0058] With reference to Figure 6 According to some embodiments of the present application, the groove bottom of the base 210 and the movable groove 120 is connected through the elastic part 300.

[0059] It can be understood that in the process of demolding the convex part of the blister box, the base 210 will be pulled to rise along the movable groove 120, and the elastic part 300 can provide a resistance to the rising process of the base 210, so as to buffer the demolding process of the convex part. After the demolding of the convex part is completed, the base 210 will be lowered along the movable groove 120 under the elastic force of the elastic part 300, so as to automatically return the base 210 to the original position.

[0060] With reference to Figure 6 According to some embodiments of the present application, the elastic part 300 includes a fastener 310 and a spring 320, the spring 320 is telescopic relative to the fastener 310, the bottom of the lower mold 100 is formed with a stepped hole, the stepped hole includes a first hole 130 and a second hole 140 which are connected in communication, the hole diameter of the first hole 130 is smaller than the hole diameter of the second hole 140, the first hole 130 is connected with the movable groove 120, and the second hole 140 penetrates the lower end of the lower mold 100; the head 311 of the fastener 310 is liftable relative to the second hole 140, and the size of the head 311 of the fastener 310 is larger than the size of the first hole 130; the rod part 312 of the fastener 310 penetrates the first hole 130 and is connected with the lower end of the base 210; the spring 320 is sleeved on the rod part 312 of the fastener 310, and the two ends of the spring 320 abut against the head 311 of the fastener 310 and the inner wall of the second hole 140 respectively.

[0061] It can be understood that when the base 210 rises along the movable slot 120, the fastener 310 rises relative to the stepped hole, the head 311 of the fastener 310 rises relative to the second hole 140, and the spring 320 between the head 311 of the fastener 310 and the inner wall of the second hole 140 will be compressed to generate resistance in the process of the base 210 rising, playing a buffering role. After the convex part is demolded, the spring 320 is extended to give the head 311 of the fastener 310 a pushing force to push the head 311 of the fastener 310 downward, thereby driving the base 210 connected with the rod part 312 of the fastener 310 to descend, so as to reset the base 210.

[0062] And, since the aperture of the first hole 130 is smaller than the aperture of the second hole 140, and the size of the head 311 of the fastener 310 is greater than the aperture of the first hole 130, thereby, only the rod part 312 of the fastener 310 can pass through the first hole 130 to be connected with the base 210, while the head 311 of the fastener 310 is blocked by the inner wall of the second hole 140.

[0063] The above describes the embodiments of the present application in detail in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge range of ordinary skilled in the art without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A blister pack forming die, characterized by, The utility model relates to a mould structure, including: Lower mould, form with cavity and activity groove, activity groove is located in the side of cavity; The at least one inside wall of cavity forms recess; Demoulding assembly, including base and swing part, base can be along the height direction movably arranged in activity groove;Swing part rotatably arranged in base, swing part can swing relative to base, from first position to second position;When swing part is located first position, the end of swing part away from base is located above recess;When swing part is located second position, swing part leaves above recess; Upper mould, for with lower mould mould, the side of upper mould towards lower mould is provided with male die, male die can be inserted into cavity when upper mould and lower mould mould, male die forms adsorption structure on.

2. The blister pack forming die of claim 1 wherein, The base is provided with a limit block, and the swing part is formed with a groove corresponding to the limit block. When the swing part rotates relative to the base, the limit block moves relative to the groove.

3. The blister pack forming die of claim 2 wherein, The base forms a first support surface, and the groove forms a second support surface. When the swing part is in the first position, the first support surface abuts against the second support surface.

4. The blister pack forming die of claim 2 wherein, The limit block forms a first limit surface, and the groove forms a second limit surface. When the swing part is in the second position, the first limit surface abuts against the second limit surface.

5. The blister pack forming die of claim 4 wherein, The first limit surface is inclined, and the first limit surface is inclined downward from high to low in the direction towards the cavity.

6. The blister pack forming die of claim 2 wherein, Both sides of the upper end of the base are provided with connecting blocks, and both ends of the swing part are connected with one of the connecting blocks through a rotating shaft, respectively. The limit block is located between the two connecting blocks.

7. The blister pack forming die of claim 2 wherein, The limit block is provided with a plurality of limit blocks, and is distributed along the length direction of the base. The groove is also provided with a plurality of grooves, and the groove corresponds to the limit block one by one.

8. The blister pack forming die of claim 1 wherein, The activity groove is provided with a plurality of activity grooves, and the plurality of activity grooves surround the cavity. The plurality of inside walls of the cavity form recesses, and the demoulding assembly is provided with a plurality of demoulding assemblies. The activity groove, the demoulding assembly, and the inside wall forming the recess correspond one by one.

9. The blister pack forming die of claim 1 wherein, The base and the groove bottom of the activity groove are connected through an elastic part.

10. The blister pack forming die of claim 9, wherein, The elastic part includes a fastener and a spring. The spring can be extended and retracted relative to the fastener. The bottom of the lower mould forms a stepped hole including a first hole and a second hole in communication. The diameter of the first hole is smaller than that of the second hole. The first hole communicates with the activity groove, and the second hole penetrates the lower end of the lower mould. The head of the fastener can be lifted and lowered relative to the second hole, and the size of the head of the fastener is larger than that of the first hole. The rod of the fastener passes through the first hole and is connected with the lower end of the base. The spring is sleeved on the rod of the fastener, and the two ends of the spring abut against the head of the fastener and the inner wall of the second hole, respectively.

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