Coaming box adjustable in height and width directions, plastic suction mold and production process

Abstract

The coaming box comprises coamings and a tray which are made of HDPE materials, the coamings comprise the first coaming, the second coaming and a plurality of extending coamings, the middle of the first coaming is a first side plate, the two sides of the first coaming are each provided with a wing plate, and the second coaming is provided with a second side plate; at least two vertical grooves with intervals are formed in the joint of the wing plate and the first side plate; a vertical first groove is formed in the middle of the second surrounding plate; a wing plate on one side of the first coaming and the second coaming are connected through a plurality of extending coamings or directly connected to form a first combined coaming; two sides of the plurality of extending coamings are respectively connected with one side wing plate and one side of the second coaming; the first combined coaming is connected with another first combined coaming through a plurality of extending coamings or directly connected with another first combined coaming. The method has the advantages that the strength of the coaming is improved, the bending function is reserved, the mold is assembled in a multi-modular mode, and the mold opening cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of logistics, transportation and packaging, in particular to a height- and width-adjustable enclosure box and a blister mould and a production process. Background Art

[0002] With the continuous advancement of modern industrialization, logistics technology plays an increasingly important role in product circulation. As a common logistics and transportation packaging tool, the panel box is usually composed of a bottom pallet, a panel and a box cover, wherein the panel is an integral structure formed by the active connection of multiple panels. This design allows the panel box to be folded when idle, thereby effectively saving storage space. However, the existing technology has put forward requirements for impact resistance and corrosion resistance for the panel box, and the panel needs to be able to bend at the corners of the splicing so as to be assembled with the pallet. The materials of the panel box and the pallet are mostly lightweight and high-strength PP polypropylene plastic. Although PP polypropylene plastic is convenient for bending and forming the panel, the panel and pallet made of it have a short service life and are prone to failure or breakage due to aging. Therefore, the existing technology has been improved, and a solution of using PP polypropylene plastic for the panel and HDPE high-density polyethylene plastic for the pallet is adopted. Although this solution extends the service life of the pallet, it leads to inconsistent service life of the pallet and the panel. When the pallet has not yet aged, the panel may have aged to failure and breakage, so it is necessary to regularly check the service life of the pallet and the panel separately, which increases the workload.

[0003] In addition, the production of enclosures and pallets in the existing technology is customized and requires mold opening according to specific dimensions. Each mold can only be suitable for a single enclosure size, resulting in a low mold adaptation rate, a long mold opening cycle, and high mold costs.

[0004] Therefore, it is urgent to design a kind of coaming box and blister mold and production process that are adjustable in height and width direction. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and to provide a panel box and blister mold and production process that are adjustable in height and width, so as to increase the service life of the panels and pallets, improve the synchronization rate of aging of the panels and pallets, and reduce the need for regular inspection of the aging degree of pallets and panels. Through mold and process improvements, the mold can be fixed in the length direction and adjustable in the width and height directions, thereby reducing the mold development needs and mold opening costs in the customized production process.

[0006] In order to achieve the above-mentioned purpose, a height- and width-adjustable enclosure box is designed, comprising an enclosure, a cover plate and a pallet, wherein the enclosure and the pallet are both made of HDPE material, the enclosure comprises a first enclosure, a second enclosure and a plurality of extended enclosures, the middle of the first enclosure is a first side panel, both sides of the first side panel are provided with wing panels, at least two spaced vertical grooves are provided at the connection between the wing panel and the first side panel, so as to facilitate the folding of the wing panel along the first side panel; a vertical first groove is provided in the middle of the second enclosure, and the first groove is used to fold the second enclosure left and right parts; one side wing panel of the first enclosure is connected to the second enclosure by a plurality of extended enclosures or directly connected to form a first combined enclosure; one side of the plurality of extended enclosures is connected to one side wing panel of the first enclosure, and the other side is connected to one side of the second enclosure; one side of the second enclosure of the first combined enclosure is connected to one side of the wing panel of another first combined enclosure by a plurality of extended enclosures or directly connected to one side of the wing panel of the first combined enclosure, and one side of the second enclosure of the other first combined enclosure is connected to one side of the wing panel of the first combined enclosure by a plurality of extended enclosures or directly connected to one side of the wing panel of the first combined enclosure, thereby forming a enclosure box with adjustable width.

[0007] Preferably, the panel box of the present invention further comprises: reinforcing ribs are provided on one side or both sides of the vertical groove.

[0008] Preferably, the panel box of the present invention further comprises: reinforcing ribs are provided on one side or both sides of the first groove.

[0009] Preferably, the enclosure box of the present invention also includes: the cover plate includes: a first cover plate, a second cover plate, a third cover plate and a plurality of extended cover plates; the first cover plate and the third cover plate have the same shape and size and are symmetrically arranged, and the bottom circumference of the first cover plate and the third cover plate is provided with a groove that matches the enclosure structure in a conformal manner; the second cover plate is arranged between the first cover plate and the third cover plate, and the bottom circumference of the second cover plate is provided with a groove that matches the enclosure structure in a conformal manner; a plurality of extended cover plates are also provided between the first cover plate and the second cover plate and between the second cover plate and the third cover plate to form a cover plate structure that is adjustable in width, and the bottom circumference of the extended cover plate is provided with a groove that matches the enclosure structure in a conformal manner; the bottom of the cover plate forms a cover plate groove composed of the grooves of the first cover plate, the third cover plate, the second cover plate and the extended cover plate, and the cover plate groove matches the enclosure structure that is adjustable in width.

[0010] Preferably, the panel box of the present invention also includes: the pallet includes: a first pallet, a second pallet, a third pallet and several extended pallets; the first pallet and the third pallet are of the same shape and size and are symmetrically arranged, and the top circumference of the first pallet and the third pallet is provided with a groove that matches the contour of the panel structure; the second pallet is arranged between the first pallet and the third pallet boards, and the top circumference of the second pallet is provided with a groove that matches the contour of the panel structure; a plurality of extended pallets connected to each other are also provided between the first pallet and the second pallet, and between the second pallet and the third pallet, to form a pallet structure adjustable in width, and the top circumference of the extended pallet is provided with a groove that matches the contour of the panel structure; the top of the pallet structure adjustable in length direction forms a pallet groove composed of the grooves of the first pallet, the third pallet, the second pallet and the extended pallet, and the pallet groove matches the contour of the panel structure adjustable in width direction.

[0011] The present invention also provides a blister mold for producing the above-mentioned enclosure, including: a first blister mold that matches the shape of the upper half or lower half of the first enclosure, a second blister mold that matches the shape and length of the first blister mold but has a different height, the second blister mold is spliced ​​between the two first blister molds to form a first combination mold for preparing the first enclosure; a third blister mold that matches the shape of the upper half or lower half of the extended enclosure, a fourth blister mold that matches the shape and length of the third blister mold but has a different height, the fourth blister mold is spliced ​​between the two third blister molds to form a second combination mold for preparing the extended enclosure; a fifth blister mold that matches the shape of the upper half or lower half of the second enclosure; a sixth blister mold that matches the shape and length of the fifth blister mold but has a different height; the sixth blister mold is spliced ​​between the two fifth blister molds to form a third combination mold for preparing the second enclosure; a plurality of second combination molds and third combination molds are spliced ​​in sequence on one side of the first combination mold to prepare the first combination enclosure.

[0012] The present invention also provides a blister mold for producing the cover plate, comprising: a fifth blister mold that matches the shape of the first cover plate and the third cover plate, a sixth blister mold that matches the shape of the second cover plate, and a seventh blister mold that matches the shape of the extended cover plate; a sixth blister mold is arranged between the two fifth blister molds, and a plurality of seventh blister molds are spliced ​​between the fifth blister mold and the sixth blister mold to form the blister mold of the cover plate.

[0013] The present invention also provides a blister mold for producing the tray, comprising: an eighth blister mold that matches the shape of the first tray and the third tray, a ninety-sixth blister mold that matches the shape of the second tray, and a tenth blister mold that matches the shape of the extended tray; a ninth blister mold is arranged between two eighth blister molds, and a plurality of tenth blister molds are spliced ​​between the eighth blister mold and the ninth blister mold to form the blister mold of the tray.

[0014] The present invention also provides a production process for the above-mentioned enclosure, and the process steps are as follows: S1. Extrusion molding HDPE thin plate material; S2. Prepare the first combination mold, the second combination mold and the third combination mold as described in claim 4, wherein the height of the enclosure is adjusted by the second blister mold of the first combination mold, the fourth blister mold of the second combination mold and the sixth blister mold of the third combination mold according to the set requirements, and the width of the enclosure is adjusted by the number of second combination molds; S3. Use a double-sided blister process to prepare the first combination enclosure, and demold after cooling; S4. Prepare or disassemble the same number of second combination molds as in step S2, S5. Use a double-sided blister process to prepare a plurality of extended enclosures, and demold after cooling; S6. Use a hot melt butt joint process to connect the two sides of the first combination enclosure to the two sides of another first combination enclosure through the plurality of extended enclosures prepared in step S5; S7. Fold to form the enclosure.

[0015] Compared with the prior art, the present invention has the following advantages: By designing a number of grooves, the panel box can be bent in multiple places when forming a combined panel. On the premise of ensuring the folding function of the panel box, the panel can be made of HDPE high-density polyethylene plastic, thereby improving the strength of the panel; by making both the panel and the pallet with HDPE high-density polyethylene plastic, the panel and the pallet can age synchronously, reducing the labor of manual inspection of the service life of the panel box; by assembling the mold in multiple modules, the number of molds that need to be re-molded in the customized production of the panel is reduced, and multiple molds can be reused, reducing the mold opening cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 , is a three-dimensional diagram of the panel box of the present invention; Figure 2 , is a front view of the coaming box of the present invention; Figure 3 ,yes Figure 2 AA plane section view; Figure 4 ,yes Figure 2 A perspective view with the first enclosure, the extended enclosure and the upper part of the second enclosure hidden; Figure 5 , is an exploded view of a panel box composed of two first combined panels; Figure 6 , is a schematic diagram of the expansion of the first combined enclosure; Figure 7 , is a schematic diagram of the coaming box after the height and width are adjusted in the fourth embodiment; Figure 8 , is an exploded view of the panel box after the height and width are adjusted in the fourth embodiment Fig. 9 , is a schematic diagram of the first combined enclosure after the height and width of the two pieces are adjusted in the fourth embodiment; Fig.10 , is an exploded view of the cover plate and the tray of the present invention; Fig.11 , is a schematic diagram of the assembly of the cover plate and the tray of the present invention; In the figure: 1 first enclosure, 1.1 first side panel, 1.2 wing panel, 1.3 two vertical grooves with intervals, 2 second enclosure, 2.1 first groove, 2.2 left part of second enclosure, 2.3 right part of second enclosure, 3 extension enclosure, 4 reinforcement ribs, 5 first cover plate, 6 second cover plate, 7 third cover plate, 8 extension cover plate, 9 first pallet, 10 second pallet, 11 third pallet, 12 extension pallet. DETAILED DESCRIPTION

[0017] In order to make the purpose, principle and structure of the present invention more clear, it is further described below in conjunction with the drawings and specific embodiments.

[0018] Embodiment 1: See also Figures 1 to 6 The present embodiment provides a height- and width-adjustable enclosure box, comprising: an enclosure and a pallet, both of which are made of HDPE material. A groove is provided on the pallet, and a plurality of enclosures are bent and connected to form an integral enclosure structure, which is plugged and fixed to the pallet through the groove. When the enclosure needs to be stored after use, the enclosure can be removed from the pallet and folded for storage.

[0019] The enclosure comprises: a first enclosure 1, a second enclosure 2 and a plurality of extended enclosures 3.

[0020] The first side panel 1.1 is located in the middle of the first enclosure 1. The first side panel 1.1 is connected to wing panels 1.2 on both sides thereof. Two vertical grooves 1.3 with intervals are provided at the connection between the wing panel 1.2 and the first side panel 1.1. The connection can be bent along the two vertical grooves 1.3 with intervals, so that the wing panel 1.2 and the first side panel 1.1 form a fold. Furthermore, a protrusion is provided between the two vertical grooves 1.3 with intervals. The thickness of the protrusion is the same as that of the wing panel 1.2 and the first side panel 1.1, so as to strengthen the structural strength of the connection after bending.

[0021] A vertical first groove 2.1 is provided in the middle of the second enclosure 2, and the first groove 2.1 symmetrically divides the second enclosure 2 into a second enclosure left part 2.2 and a second enclosure right part 2.3. The second enclosure 2 can be bent along the first groove 2.1 so that the second enclosure left part 2.2 and the second enclosure right part 2.3 are folded.

[0022] A plurality of extended enclosures 3 are connected between the first enclosure 1 and the second enclosure 2, and the two ends of the extended enclosure 3 are respectively connected to the wing panel 1.2 of the first enclosure 1 and the second enclosure right part 2.3 of the second enclosure 2. A first enclosure 1, a second enclosure 2 and a plurality of extended enclosures 3 form a first combined enclosure. The two first combined enclosures are connected to each other to form an integral enclosure box structure. The specific connection method is to connect the second enclosure left part 2.2 of the second enclosure 2 in one of the first combined enclosures with the right side wing panel 1.2 of the other first combined enclosure through a plurality of extended enclosures 3.

[0023] Furthermore, the number and size of the extended panels 3 can be adjusted. By adjusting the extended panels 3, the width of the panel box can be adjusted, so that the need for mold opening is reduced in the customized production of the panel box. The panel box can be bent at the two spaced vertical grooves 1.3 and the first groove 2.1, so that the panel box is folded for easy storage. And because the bending function is guaranteed, the panel can use HDPE high-density polyethylene plastic like the pallet to improve the synchronization rate of aging of the panel and the pallet, and extend the service life of the panel.

[0024] Furthermore, one side or both sides of the two spaced vertical grooves 1.3 and the first groove 2.1 are provided with reinforcing ribs embedded in the enclosure.

[0025] Embodiment 2: This embodiment provides a blister mold for producing the enclosure described in the first embodiment.

[0026] The blister mold includes: a first blister mold that matches the shape of the upper half or the lower half of the first enclosure 1, a second blister mold that matches the shape and length of the first blister mold and has a different height, and the two first blister molds are spliced ​​with the second blister mold to form a first combined mold for preparing the first enclosure 1. The second blister mold is used to form the middle part of the first enclosure 1. By adjusting the height of the second blister mold, the height of the middle part of the first enclosure 1 can be adjusted. If customized production of a first enclosure 1 of a special height is required, it is only necessary to re-open the second blister mold without adjusting the first blister mold, saving the cost of opening the mold.

[0027] A third blister mold that matches the shape of the upper or lower part of the extended enclosure 3, and a fourth blister mold that matches the shape and length of the third blister mold and has a different height, and the fourth blister mold is spliced ​​between the two third blister molds to form a second combined mold for preparing the extended enclosure 3. The fourth blister mold is used to form the middle part of the extended enclosure 3. By adjusting the height of the fourth blister mold, the height of the middle part of the extended enclosure 3 can be adjusted. If customized production of an extended enclosure 3 of a special height is required, it is only necessary to re-open the fourth blister mold, and there is no need to adjust the third blister mold, which saves the cost of opening the mold.

[0028] A fifth blister mold that matches the shape of the upper or lower part of the second enclosure 2; a sixth blister mold that matches the shape and length of the fifth blister mold but has a different height; the sixth blister mold is spliced ​​between the two fifth blister molds to form a third combined mold for preparing the second enclosure 2. The sixth blister mold is used to form the middle part of the second enclosure 2. By adjusting the height of the sixth blister mold, the height of the middle part of the second enclosure 2 can be adjusted. If customized production of a second enclosure 2 of a special height is required, only the sixth blister mold needs to be re-molded, and there is no need to adjust the fifth blister mold, which saves the cost of mold opening.

[0029] A plurality of second combined molds and a third combined mold are sequentially spliced ​​on one side of the first combined mold to prepare a first combined enclosure.

[0030] Embodiment three: This embodiment provides a production process for the enclosure as described in the first embodiment.

[0031] The process steps are as follows: S1. Extrusion molding HDPE sheet material; S2. Prepare the first mold assembly, the second mold assembly and the third mold assembly as described in Example 2, wherein the height of the enclosure is adjusted by the second blister mold of the first mold assembly, the fourth blister mold of the second mold assembly and the sixth blister mold of the third mold assembly according to the set requirements, and the width of the enclosure is adjusted by the number of the second mold assembly; S3. The first combined panel is prepared by double-sided blister process and demoulded after cooling; S4. Prepare or disassemble the same number of second mold assemblies as in step S2, S5. A plurality of extended panels are prepared by double-sided blister forming process and demolded after cooling; S6. Connecting two sides of the first combined enclosure to two sides of another first combined enclosure through a plurality of extended enclosures prepared in step S5 by a hot-melt butt-joining process; S7. After folding, it forms a panel.

[0032] Embodiment 4: On the basis of the first to third embodiments, the height and width of the first combined enclosure are adjusted, see Figures 7 to 9 .

[0033] On the basis of the first embodiment, the number of the extended panels 3 between the first panel 1 and the second panel 2 can be reduced. In the present embodiment, the number of the extended panels 3 can be further reduced to zero to achieve adjustment of the first combined panel in the width direction.

[0034] On the basis of the second embodiment, the height or number of the second and fourth combination templates can be adjusted. In this embodiment, the second and fourth combination templates can be further cancelled, and two first combination templates and two third combination templates can be directly spliced ​​together, so that the first combination enclosure has only the upper and lower parts, and the middle part is cancelled, thereby realizing the adjustment of the first combination enclosure in the height direction.

[0035] Embodiment five: Based on embodiments one to four, the enclosure box further includes a cover plate and a tray that cooperate with the enclosure.

[0036] The cover plate part includes a first cover plate 5, a second cover plate 6, a third cover plate 7 and a plurality of extended cover plates 8. The first cover plate 5 and the third cover plate 7 are of the same shape and size and are arranged symmetrically, and grooves adapted to the enclosure structure are provided on the periphery of their bottom. The second cover plate 6 is located between the first cover plate 5 and the third cover plate 7, and grooves adapted to the enclosure structure are also provided on the periphery of its bottom. A plurality of extended cover plates 8 connected to each other are also provided between the first cover plate 5 and the second cover plate 6, and between the second cover plate 6 and the third cover plate 7, so as to form a cover plate structure adjustable in width, and grooves adapted to the enclosure structure are also provided on the periphery of the bottom of the extended cover plate 8. The bottom of the cover plate is composed of the grooves of the first cover plate 5, the third cover plate 7, the second cover plate 6 and the extended cover plate 8, which together form a cover plate groove, and the cover plate groove is adapted to the enclosure structure adjustable in width.

[0037] The pallet part includes a first pallet 9, a second pallet 10, a third pallet 11 and a plurality of extension pallets 12. The first pallet 9 and the third pallet 11 are of the same shape and size and are arranged symmetrically, and grooves matching the enclosure structure are provided on their top circumference. The second pallet 10 is located between the first pallet 9 and the third pallet 11, and grooves matching the enclosure structure are also provided on its top circumference. A plurality of extension pallets 12 connected to each other are provided between the first pallet 9 and the second pallet 10, and between the second pallet 10 and the third pallet 11, so as to form a pallet structure adjustable in width, and grooves matching the enclosure structure are also provided on the top circumference of the extension pallet. The top of the pallet structure adjustable in length is composed of the grooves of the first pallet 9, the third pallet 11, the second pallet 10 and the extension pallet 12, which together form a pallet groove, and the pallet groove is compatible with the enclosure structure adjustable in width.

[0038] Embodiment six: On the basis of the first to fifth embodiments, this embodiment further provides a blister mold for producing the cover plate and a blister mold for producing the tray.

[0039] The blister mold for producing the above-mentioned cover plate specifically includes: a fifth blister mold, which matches the shape of the first cover plate 5 and the third cover plate 7; a sixth blister mold, which matches the shape of the second cover plate 6; and a seventh blister mold, which matches the shape of the extended cover plate 8. Among them, one sixth blister mold is arranged between two fifth blister molds, and a plurality of seventh blister molds are spliced ​​between the fifth blister mold and the sixth blister mold, so as to form a blister mold for forming the cover plate.

[0040] The blister mold for producing the above-mentioned tray specifically includes: an eighth blister mold, which matches the shape of the first tray 9 and the third tray 11; a ninth blister mold, which matches the shape of the second tray 10; and a tenth blister mold, which matches the shape of the extended tray 12. Among them, one ninth blister mold is arranged between two eighth blister molds, and a plurality of tenth blister molds are spliced ​​between the eighth blister mold and the ninth blister mold, thereby forming a blister mold for forming a tray.

[0041] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical solutions and novel concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A height- and width-adjustable coaming box, comprising a coaming, a cover and a pallet, characterized in that: The enclosure and the pallet are both made of HDPE material. The enclosure includes a first enclosure, a second enclosure and a plurality of extended enclosures. The middle part of the first enclosure is a first side panel, and wing panels are provided on both sides of the first side panel. At least two vertical grooves with intervals are provided at the connection between the wing panel and the first side panel, so as to facilitate the wing panel to be folded along the first side panel; A vertical first groove is provided in the middle of the second enclosure, and the first groove is used to fold the left and right parts of the second enclosure; A side wing plate of the first enclosure plate is connected to the second enclosure plate through a plurality of extended enclosure plates or directly to form a first combined enclosure plate; One side of a plurality of extended panels is connected to a side wing panel of the first panel, and the other side is connected to a side of the second panel; One side of the second enclosure of the first combined enclosure is connected to one side of the wing plate of another first combined enclosure through a plurality of extended enclosures or directly, and one side of the second enclosure of the other first combined enclosure is connected to one side of the wing plate of the first combined enclosure through a plurality of extended enclosures or directly, thereby forming an enclosure box that is adjustable in width.

2. A height- and width-adjustable coaming box as claimed in claim 1, characterized in that: One side or both sides of the vertical groove are provided with reinforcing ribs.

3. A height- and width-adjustable coaming box as claimed in claim 1, characterized in that: One side or both sides of the first groove are provided with reinforcing ribs.

4. A height- and length-adjustable coaming box as claimed in claim 1, characterized in that: The cover plate includes: a first cover plate, a second cover plate, a third cover plate and a plurality of extended cover plates; The first cover plate and the third cover plate have the same shape and size and are symmetrically arranged. The bottom circumference of the first cover plate and the third cover plate is provided with a groove that matches the shape of the enclosure structure; the second cover plate is arranged between the first cover plate and the third cover plate, and the bottom circumference of the second cover plate is provided with a groove that matches the shape of the enclosure structure; A plurality of mutually connected extension cover plates are provided between the first cover plate and the second cover plate, and between the second cover plate and the third cover plate, to form a cover plate structure adjustable in width, and a groove is provided on the bottom peripheral side of the extension cover plate to match the enclosing plate structure in a conformal manner; The bottom of the cover plate forms a cover plate groove composed of the grooves of the first cover plate, the third cover plate, the second cover plate and the extended cover plate, and the cover plate groove is conformally matched with the width-adjustable enclosure structure.

5. A height- and length-adjustable coaming box as claimed in claim 1, characterized in that: The trays include: a first tray, a second tray, a third tray and a plurality of extension trays; The first tray and the third tray are of the same shape and size and are symmetrically arranged. The top periphery of the first tray and the third tray is provided with a groove that matches the shape of the enclosure structure; the second tray is arranged between the first tray and the third tray, and the top periphery of the second tray is provided with a groove that matches the shape of the enclosure structure; A plurality of extension trays are connected to each other between the first tray and the second tray, and between the second tray and the third tray to form a tray structure with adjustable width. The top periphery of the extension tray is provided with a groove matching the profile of the enclosure structure. The top of the pallet structure adjustable in length direction forms a pallet groove composed of the grooves of the first pallet, the third pallet, the second pallet and the extended pallet, and the pallet groove is conformed with the enclosure structure adjustable in width direction.

6. A blister mold for producing the enclosure as claimed in claim 1, characterized in that: include: A first blister mold matching the shape of the upper or lower part of the first enclosure, A second blister mold that matches the shape and length of the first blister mold but has a different height. A second plastic suction mold is spliced ​​between the two first plastic suction molds to form a first combined mold for preparing a first enclosure; A third blister mold that matches the shape of the upper or lower part of the extended enclosure, The fourth blister mold has a shape and length that matches the third blister mold, but has an inconsistent height. A fourth blister mold is spliced ​​between the two third blister molds to form a second combined mold for preparing an extended enclosure; A fifth blister mold having a shape matching that of the upper half or the lower half of the second enclosure; A sixth blister mold having a shape and length matching the fifth blister mold but having a different height; A sixth blister mold is spliced ​​between the two fifth blister molds to form a third combined mold for preparing a second enclosure panel; A plurality of second combined molds and a third combined mold are sequentially spliced ​​on one side of the first combined mold to prepare a first combined enclosure.

7. A blister mold for producing the cover plate as claimed in claim 4, characterized in that: include: a fifth blister mold matching the shape of the first cover plate and the third cover plate, a sixth blister mold matching the shape of the second cover plate, and a seventh blister mold matching the shape of the extended cover plate; A sixth blister mold is arranged between the two fifth blister molds, and a plurality of seventh blister molds are spliced ​​between the fifth blister mold and the sixth blister mold to form the blister mold of the cover plate.

8. A blister mold for producing a tray as claimed in claim 5, characterized in that: include: an eighth blister mold matching the shape of the first tray and the third tray, a ninety-sixth blister mold matching the shape of the second tray, and a tenth blister mold matching the shape of the extended tray; A ninth blister mold is arranged between the two eighth blister molds, and a plurality of tenth blister molds are spliced ​​between the eighth blister mold and the ninth blister mold to form the blister mold of the tray.

9. A process for producing the enclosure as claimed in claim 1, characterized in that: The process steps are as follows: S1. Extrusion molding HDPE sheet material; S2. Prepare the first combined mold, the second combined mold and the third combined mold as described in claim 4, wherein the height of the enclosure is adjusted by the second blister mold of the first combined mold, the fourth blister mold of the second combined mold and the sixth blister mold of the third combined mold according to the set requirements, and the width of the enclosure is adjusted by the number of the second combined molds; S3. The first combined panel is prepared by double-sided blister process and demoulded after cooling; S4. Prepare or disassemble the same number of second mold assemblies as in step S2, S5. A plurality of extended panels are prepared by double-sided blister forming process and demolded after cooling; S6. Connecting two sides of the first combined enclosure to two sides of another first combined enclosure through a plurality of extended enclosures prepared in step S5 by a hot-melt butt-joining process; S7. After folding, it forms a panel.

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