Foam mold with multi-layer composite structure

Abstract

The utility model relates to a foam mould with a multilayer composite structure, which belongs to the technical field of foam moulds and comprises a lower mould frame, a female mould is abutted against the inside of the lower mould frame, a cover plate is abutted against the top side of the lower mould frame, mounting mechanisms are arranged on the lower mould frame, the female mould and the cover plate, an upper mould frame is arranged above the lower mould frame, and a lower mould frame is arranged above the upper mould frame. A male die is fixed to the bottom side of the upper die frame, a first rubber pad is fixed to the bottom side of the upper die frame, and two second rubber pads are fixed to the top side of the cover plate. According to the foam mold of the multi-layer composite structure, the waterproof layer is arranged in the lower mold frame, so that the lower mold frame cannot be damaged under the soaking of rainwater, the corrosion-resistant layer can prevent the mold from being rotted under the action of organisms, the fireproof layer can prevent the mold from being burnt by a fire disaster, and the damping layer can buffer and damp the lower mold frame; rigid collision between the lower die frame and the female die is avoided, and the female die can be conveniently taken down and replaced by arranging the mounting mechanisms on the female die and the cover plate.

Description

Technical Field

[0001] The utility model relates to the technical field of foam moulds, in particular to a foam mould with a multi-layer composite structure. Background Art

[0002] Foam plastic product packaging boxes have the characteristics of light weight, good quality, high strength, high energy absorption, and good shock resistance. They are widely used in the packaging of various precision instruments, meters, electronics, electrical appliances, medical treatment, aquatic products, vegetables and fruits, etc. The production of foam plastic product packaging boxes is to fill the closed mold cavity with mature expandable polystyrene beads, and pass hot steam through the mold cavity to heat the polystyrene beads in a relatively short time. During heating, the foaming agent remaining in the polystyrene evaporates, and the polystyrene beads soften and expand due to the heat. Due to the limitation of the mold cavity, the expanded beads are able to fill all the gaps and are completely bonded as a whole. After cooling and shaping, they are demolded to obtain foam plastic products.

[0003] For example, a Chinese patent (CN212764406U) discloses a foam mold that is convenient for placing a foam core mold, including an upper mold, a support column and a lower mold. A casting plate is arranged at the bottom of the upper mold, and a plurality of casting heads are arranged at the bottom of the casting plate. A feed port is arranged at the bottom of the upper mold, and a cavity is arranged between the feed port and the casting plate. Through holes are arranged at the four corners of the upper mold, and the support column is arranged through the through holes. The upper mold is connected to the lower mold through the support column. An opening is arranged at the top of the lower mold, and a bottom plate is arranged on the opening. Side plates are arranged on both sides of the bottom plate, a slide bar is arranged at the bottom end of the bottom plate, and a slide groove is arranged at the bottom end of the opening. The slide bar is slidably connected to the slide groove, and connecting blocks are arranged on both sides of the opening. A through hole is arranged on the side of the lower mold, and the connecting block extends through the through hole to extend out of the lower mold. A threaded bar is arranged at one end of the connecting block extending out of the lower mold, and a push plate is arranged at the other end of the connecting block.

[0004] The above scheme also has the following technical deficiencies: the above scheme is not convenient for adding functions such as waterproofing, fireproofing, corrosion resistance, and shock absorption to the mold; since the mold is used for a long time, it needs to be placed for a long time when not in use; and at the same time, the mold has certain requirements for the placement environment when it is placed, and is easily damaged when soaked in rain or burned by fire. Based on this, a foam mold with a multi-layer composite structure is proposed. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a foam mold with a multi-layer composite structure, which has the advantages of improving the waterproof, fireproof, corrosion-resistant and shock-absorbing capabilities of the mold, and solves the problem that the mold is easily damaged by rain immersion or fire.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foam mold of a multi-layer composite structure, comprising a lower mold frame, the interior of the lower mold frame is abutted with a concave mold, the top side of the lower mold frame is abutted with a cover plate, the lower mold frame, the concave mold and the cover plate are provided with a mounting mechanism, an upper mold frame is provided above the lower mold frame, a convex mold is fixed to the bottom side of the upper mold frame, a first rubber pad is fixed to the bottom side of the upper mold frame, and two second rubber pads are fixed to the top side of the cover plate;

[0007] The lower mold frame includes a waterproof layer fixed on the outermost layer, an anti-corrosion layer is fixed on the inner side of the waterproof layer, a fireproof layer is fixed on the inner side of the anti-corrosion layer, a support plate is fixed on the inner side of the fireproof layer, a heat insulation layer is fixed on the inner side of the support plate, a shock-absorbing layer is fixed on the inner side of the heat insulation layer, and a wear-resistant layer is fixed on the inner side of the shock-absorbing layer.

[0008] Furthermore, the mounting mechanism includes two horizontal plates fixed on the left and right sides of the die, two placement grooves opened on the left and right sides of the inner wall of the lower mold frame, and two limit plates fixed on the bottom side of the cover plate, two first elastic blocks are fixed on the left and right sides of the limit plates, and the mounting mechanism also includes two mounting grooves opened on the bottom side of the placement groove, and two second elastic blocks are fixed on the left and right sides of the inner wall of the mounting groove.

[0009] Furthermore, the waterproof layer adopts a polyurethane waterproof coating layer, and the anti-corrosion layer adopts a tri-polyethylene anti-corrosion coating.

[0010] Furthermore, the fireproof layer is a triethyl phosphate layer, and the heat insulation layer is a composite magnesium aluminum silicate heat insulation coating layer.

[0011] Furthermore, the shock-absorbing layer is made of a rubber plate, and the wear-resistant layer is made of an epoxy resin coating layer.

[0012] Furthermore, a notch is provided on one side opposite to the two placement grooves, and the transverse plate abuts against the placement grooves.

[0013] Furthermore, the limiting plate can slide in the installation groove, and the first elastic block and the second elastic block are engaged with each other.

[0014] Furthermore, a rectangular hole is opened inside the transverse plate, and the limiting plate can slide in the rectangular hole.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] The foam mold of the multi-layer composite structure can prevent the lower mold frame from being damaged by being soaked in rainwater by providing a waterproof layer in the lower mold frame, the anti-corrosion layer can prevent the mold from being rotten by biological action, the fireproof layer can prevent the mold from being burned by fire, the shock-absorbing layer can buffer and reduce shock on the lower mold frame to avoid rigid collision between the lower mold frame and the die, and the installation mechanism is provided on the die and the cover plate, so that the die can be conveniently removed and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the layer structure of the lower mold frame of the utility model;

[0019] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 4 It is a three-dimensional schematic diagram of the partial structure of the installation mechanism of the utility model.

[0021] In the figure: 100 lower mold frame, 101 waterproof layer, 102 anti-corrosion layer, 103 fireproof layer, 104 support plate, 105 heat insulation layer, 106 shock-absorbing layer, 107 wear-resistant layer, 2 concave mold, 3 cover plate, 400 installation mechanism, 401 horizontal plate, 402 placement groove, 403 limit plate, 404 first elastic block, 405 installation groove, 406 second elastic block, 5 upper mold frame, 6 punch, 7 first rubber pad, 8 second rubber pad. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The foam mold of the multi-layer composite structure in this embodiment includes a lower mold frame 100, the interior of the lower mold frame 100 is abutted with a die 2, the top side of the lower mold frame 100 is abutted with a cover plate 3, a mounting mechanism 400 is provided on the lower mold frame 100, the die 2 and the cover plate 3, an upper mold frame 5 is provided above the lower mold frame 100, a punch 6 is fixed to the bottom side of the upper mold frame 5, a first rubber pad 7 is fixed to the bottom side of the upper mold frame 5, and two second rubber pads 8 are fixed to the top side of the cover plate 3.

[0024] The lower mold frame 100 in this embodiment has the functions of being waterproof, fireproof, anti-corrosive, shock-absorbing, heat-insulating and wear-resistant. The cover plate 3 is used to fix the die 2. The die 2 and the punch 6 are used together to process the foam product. The installation mechanism 400 is used to facilitate the installation and removal of the die 2.

[0025] It should be noted that the first rubber pad 7 and the second rubber pad 8 can be used together to buffer the impact force caused by the downward movement of the upper mold frame 5.

[0026] See also Figure 1-2 In order to increase the waterproof, fireproof, anti-corrosion, shock-absorbing, heat-insulating and wear-resistant capabilities of the lower mold frame 100, the lower mold frame 100 in this embodiment includes a waterproof layer 101 fixed to the outermost layer, the waterproof layer 101 adopts a polyurethane waterproof coating layer, an anti-corrosion layer 102 is fixed on the inner side of the waterproof layer 101, the anti-corrosion layer 102 adopts triethylene anti-corrosion coating, a fireproof layer 103 is fixed on the inner side of the anti-corrosion layer 102, the fireproof layer 103 adopts a triethyl phosphate layer, a support plate 104 is fixed on the inner side of the fireproof layer 103, a heat-insulating layer 105 is fixed on the inner side of the support plate 104, the heat-insulating layer 105 adopts a composite magnesium aluminum silicate heat-insulating coating layer, a shock-absorbing layer 106 is fixed on the inner side of the heat-insulating layer 105, the shock-absorbing layer 106 adopts a rubber plate, a wear-resistant layer 107 is fixed on the inner side of the shock-absorbing layer 106, and the wear-resistant layer 107 adopts an epoxy resin coating layer.

[0027] The waterproof layer 101 in this embodiment can increase the waterproof ability of the lower mold frame 100, the anti-corrosion layer 102 can prevent the lower mold frame 100 from rotting, the fireproof layer 103 is used to increase the fireproof ability of the lower mold frame 100, the support plate 104 is used as the skeleton of the lower mold frame 100, the insulation layer 105 is used to reduce the heat exchange on both sides of the insulation layer 105, the shock-absorbing layer 106 is used to reduce the shock of the die 2, and the wear-resistant layer 107 is used to prevent the die 2 from causing wear to the lower mold frame 100.

[0028] See also Figure 1 , Figure 3 and Figure 4In order to facilitate the installation and replacement of the die 2, the installation mechanism 400 in this embodiment includes two horizontal plates 401 fixed on the left and right sides of the die 2, two placement grooves 402 opened on the left and right sides of the inner wall of the lower mold frame 100, and two limit plates 403 fixed on the bottom side of the cover plate 3. Two first elastic blocks 404 are fixed on the left and right sides of the limit plate 403. The installation mechanism 400 also includes two installation grooves 405 opened on the bottom side of the placement groove 402. The limit plate 403 can slide in the installation groove 405. Two second elastic blocks 406 are fixed on the left and right sides of the inner wall of the installation groove 405. The first elastic block 404 and the second elastic block 406 are clamped with each other. A notch is opened on the opposite side of the placement groove 402. The horizontal plate 401 abuts against the placement groove 402. A rectangular hole is opened inside the horizontal plate 401. The limit plate 403 can slide in the rectangular hole.

[0029] The mounting mechanism 400 in this embodiment can fix the limiting plate 403 by clamping the first elastic block 404 and the second elastic block 406, thereby limiting the cover plate 3, and fix the die 2 by cooperating with the cover plate 3 and the lower mold frame 100.

[0030] It should be noted that the rectangular hole is used to avoid the limiting plate 403, and the first elastic block 404 and the second elastic block 406 can separate the first elastic block 404 and the second elastic block 406 through their own deformation.

[0031] The working principle of the above embodiment is:

[0032] When it is necessary to install the concave mold 2, the concave mold 2 is placed inside the lower mold frame 100, so that the cross plate 401 is placed on the placement groove 402, and then the limiting plate 403 on the cover plate 3 is aligned with the installation groove 405, and the cover plate 3 is moved downward, so that the limiting plate 403 enters the installation groove 405 through the rectangular hole on the cross plate 401, and the first elastic block 404 and the second elastic block 406 are squeezed, and the first elastic block 404 and the second elastic block 406 are deformed. The first elastic block 404 moves to the bottom of the second elastic block 406 and then recovers its deformation, and the second elastic block 406 also recovers its deformation, thereby fixing the concave mold 2. When the lower mold frame 100 is exposed to rain, During soaking, the waterproof layer 101 can prevent rainwater from entering the interior of the lower mold frame 100. When the lower mold frame 100 is subject to fire, the fireproof layer 103 can improve the protection ability of the lower mold frame 100. The anti-corrosion layer 102 can prevent the lower mold frame 100 from being corroded by microorganisms. The heat insulation layer 105 is used to separate the heat on both sides of the heat insulation layer 105. The shock-absorbing layer 106 is used to reduce shock when the die 2 impacts the lower mold frame 100. The wear-resistant layer 107 is used to prevent the die 2 from causing wear to the lower mold frame 100. When the upper mold frame 5 drives the punch 6 to move downward and hits the lower mold frame 100, the first rubber pad 7 and the second rubber pad 8 undergo elastic deformation to buffer the impact force.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A foam mold with a multi-layer composite structure, comprising a lower mold frame (100), characterized in that: The interior of the lower mold frame (100) is in contact with a concave mold (2), the top side of the lower mold frame (100) is in contact with a cover plate (3), a mounting mechanism (400) is provided on the lower mold frame (100), the concave mold (2) and the cover plate (3), an upper mold frame (5) is provided above the lower mold frame (100), a convex mold (6) is fixed to the bottom side of the upper mold frame (5), a first rubber pad (7) is fixed to the bottom side of the upper mold frame (5), and two second rubber pads (8) are fixed to the top side of the cover plate (3); The lower mold frame (100) comprises a waterproof layer (101) fixed to the outermost layer, an anti-corrosion layer (102) fixed to the inner side of the waterproof layer (101), a fireproof layer (103) fixed to the inner side of the anti-corrosion layer (102), a support plate (104) fixed to the inner side of the fireproof layer (103), a heat insulation layer (105) fixed to the inner side of the support plate (104), a shock-absorbing layer (106) fixed to the inner side of the heat insulation layer (105), and a wear-resistant layer (107) fixed to the inner side of the shock-absorbing layer (106).

2. The foam mold of the multi-layer composite structure according to claim 1, characterized in that: The mounting mechanism (400) comprises two horizontal plates (401) fixed on the left and right sides of the concave mold (2), two placement grooves (402) provided on the left and right sides of the inner wall of the lower mold frame (100), and two limit plates (403) fixed on the bottom side of the cover plate (3), two first elastic blocks (404) being fixed on the left and right sides of the limit plates (403), and the mounting mechanism (400) further comprises two mounting grooves (405) provided on the bottom side of the placement grooves (402), and two second elastic blocks (406) being fixed on the left and right sides of the inner wall of the mounting grooves (405).

3. The foam mold of the multi-layer composite structure according to claim 1, characterized in that: The waterproof layer (101) is made of a polyurethane waterproof coating layer, and the anti-corrosion layer (102) is made of tri-polyethylene anti-corrosion coating.

4. The foam mold of the multi-layer composite structure according to claim 1, characterized in that: The fireproof layer (103) is a triethyl phosphate layer, and the heat insulation layer (105) is a composite magnesium aluminum silicate heat insulation coating layer.

5. The foam mold of the multi-layer composite structure according to claim 1, characterized in that: The shock-absorbing layer (106) is made of a rubber plate, and the wear-resistant layer (107) is made of an epoxy resin coating layer.

6. The foam mold of the multi-layer composite structure according to claim 2, characterized in that: A notch is provided on one side opposite to the two placement grooves (402), and the transverse plate (401) abuts against the placement grooves (402).

7. The foam mold of the multi-layer composite structure according to claim 2, characterized in that: The limiting plate (403) can slide in the installation groove (405), and the first elastic block (404) and the second elastic block (406) are mutually engaged.

8. The foam mold of the multi-layer composite structure according to claim 2, characterized in that: A rectangular hole is provided inside the transverse plate (401), and the limiting plate (403) can slide in the rectangular hole.

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