WPC photo frame and preparation method thereof

Abstract

The invention discloses a WPC photo frame which comprises a main frame 1, a back plate 2 and transparent glass 3, a metal bottom frame formed by welding four metal pieces 4 is arranged between the main frame 1 and the back plate 2, a first mounting groove 5 is formed in the back face of each metal piece 4, and a first magnet 6 is arranged in each first mounting groove 5; a second mounting groove 7 is formed in the front surface of each metal piece 4, and an adhesive piece 8 is arranged in each second mounting groove 7; a plurality of second magnets 9 are arranged on the side face, facing the metal bottom frame, of the back plate 2. The main frame 1 and the back plate 2 are both made of wood-plastic composite materials. The preparation method of the WPC photo frame comprises the following steps of A, raw material drying, B, raw material mixing, C, forming and cutting, D, part machining and E, photo frame assembling. The photo frame not only can improve the structural strength, but also has the advantages of high structural stability, long service life and convenience in photo replacement.

Description

Technical Field

[0001] The invention relates to a photo frame and a manufacturing method thereof, in particular to a WPC photo frame and a manufacturing method thereof. Background Art

[0002] In recent years, as people's environmental awareness has gradually increased, the use of environmentally friendly materials has become the main choice for people to manufacture various products. In the production of photo frames, wood-plastic composite materials are now the main choice of materials, because they use wood powder and waste plastics to mix and reshape, not only have the appearance of wood, but also have higher hardness than plastic and better corrosion resistance than wood. Compared with photo frames made of single wood or single plastic materials, they have a good environmental protection effect; but in the actual use process, because the compatibility between wood powder and plastic has a certain range, there is a large gap between the subsequent wood powder and plastic, which in turn affects the entire wood-plastic composite material in the subsequent stretching process. It is easy to crack or break due to its low strength, and the overall structural strength is low. Therefore, the photo frames made of existing wood-plastic composite profiles have the problem of low structural strength. Summary of the invention

[0003] The object of the present invention is to provide a WPC photo frame and a preparation method thereof. The present invention has the advantage of high structural strength.

[0004] The technical solution of the present invention is as follows: a WPC photo frame comprises a main frame, a back plate and a transparent glass arranged on the main frame, a metal bottom frame welded by four metal pieces is arranged between the main frame and the back plate, a first mounting groove is arranged on the back of each metal piece, and a first magnet is arranged in each first mounting groove; a second mounting groove is arranged on the front of each metal piece, and an adhesive piece for connecting the main frame and the metal piece is arranged in each second mounting groove; a plurality of evenly distributed second magnets are arranged on the side of the back plate facing the metal bottom frame, and the second magnets cooperate with the first magnets; the main frame and the back plate are both made of wood-plastic composite materials; the metal bottom frame can be used to support the main frame internally, thereby improving the structural strength of the entire main frame; by arranging an adhesive piece on the metal strip to connect the metal piece and the main frame, the tightness of the connection between the main frame and the metal frame is increased, and the stability of the structure is further improved; at the same time, by arranging the first magnet on the metal strip to cooperate with the second magnet on the back plate, the back plate can be easily removed from the photo frame, which is convenient for replacing the internal photos.

[0005] In the aforementioned WPC photo frame, the main frame is composed of four frame bars, and the width of each frame bar is greater than the width of the metal piece; the width of the frame bar is set to be greater than the width of the metal piece, so that the frame bar can block the metal piece, thereby blocking the welding seam at the connection of the metal piece, thereby ensuring the aesthetics of use.

[0006] In the aforementioned WPC photo frame, a limiting groove for fixing the transparent glass is provided on the side of the main frame facing the back plate, and glass glue for bonding the transparent glass is laid on the inner bottom surface of the limiting groove; the position of the transparent glass can be limited by the limiting groove, further ensuring the stability of the structure.

[0007] According to the aforementioned WPC photo frame, a WPC photo frame preparation method comprises the following steps:

[0008] A. Drying of raw materials: PVC and DOP are added into a drying oven at a ratio of 80 parts:20 parts for drying to obtain raw material A; wood powder and calcium oxide are added into a drying oven at a ratio of 85 parts:15 parts for drying to obtain raw material B; raw material B is then mixed with amine modifier M at a ratio of 35 parts:65 parts, and then added into a drying oven for secondary drying to obtain raw material C;

[0009] B. Mixing raw materials: putting raw material A, raw material C, AS, polyamide wax, EBS and tribasic lead sulfate obtained in step A into a mixer in a ratio of 37-41 parts: 37-41 parts: 6-10 parts: 2-6 parts: 2-6 parts: 4-8 parts for mixing and plasticizing for 10-15 minutes to obtain raw material D; finally, adding 20-30 parts of phosphor to raw material D, stirring and mixing again, and finally obtaining raw material E;

[0010] C. Forming and cutting: adding the raw material E obtained in step B into a mold for hot pressing to obtain wood-plastic composite profile strips and wood-plastic composite boards, and then cutting them according to the length of the photo frame to be assembled to obtain frame strips and backboards; at the same time, cutting the entire metal strip according to the length of the photo frame to be assembled to obtain metal parts;

[0011] D. Parts processing: first, cut the sides of the frame bar and the metal part to form an inclined surface; then, slot the corresponding positions on the frame bar, the back plate and the metal part; then, fill the slot on the frame bar with adhesive, install the second magnet in the slot on the back plate; and install the first magnet in the slot on the metal part;

[0012] E. Assembling the photo frame: firstly, the sides of the four metal strips are arranged opposite to each other to form the shape of the metal bottom frame, and then welding is performed at the positions where each two adjacent metal strips are connected; then, the frame strips are bonded to the metal strips by means of adhesive; then, the transparent glass is bonded to the side of the frame strips facing the metal strips by means of glass adhesive; finally, the back panel is mounted on the metal bottom frame by means of the first magnet and the second magnet, and a finished photo frame is obtained.

[0013] In the aforementioned WPC photo frame preparation method, the drying temperature of the drying work in step A is 100° C. to 140° C., and the drying time is 5 to 7 hours; the drying temperature of the secondary drying work is 100° C. to 140° C., and the drying time is 3 to 6 hours.

[0014] In the aforementioned WPC photo frame preparation method, the mixing and plasticating time in step B is 150° C. to 170° C.

[0015] In the aforementioned WPC photo frame preparation method, the mold temperature of the hot pressing molding in step C is 140° C. to 180° C., and the hot pressing molding time is 1 to 2 hours.

[0016] Compared with the prior art, the present invention improves the existing WPC photo frame and its preparation method. A metal bottom frame consisting of four metal strips is provided between the main frame and the back plate, and the metal bottom frame can be used to support the main frame internally, thereby improving the structural strength of the entire main frame; an adhesive is provided on the metal strip to connect the metal part and the main frame, thereby increasing the tightness of the connection between the main frame and the metal frame, and further improving the stability of the structure; at the same time, a first magnet is provided on the metal strip to cooperate with a second magnet on the back plate, so that the back plate can be easily removed from the photo frame, thereby facilitating the replacement of internal photos. In addition, the present invention also sets the width of the frame bar to be greater than the width of the metal piece, so that the frame bar can block the metal piece, thereby blocking the welding seam at the connection of the metal piece, thereby ensuring the aesthetics of use; by providing limiting grooves on the sides of the frame, the position of the transparent glass can be limited by the limiting grooves, further ensuring the stability of the structure; by adding an appropriate amount of amine modifier M to the treated wood powder, the subsequent compatibility between the wood powder and polyvinyl chloride is improved, so that the tensile strength, hardness, impact strength, etc. of the final wood-plastic composite material are all improved to a certain extent, and at the same time Because the compatibility between wood powder and polyvinyl chloride is improved, the gap between the two will be reduced accordingly, so that the water absorption of the obtained wood-plastic composite material is reduced, it is not easy to be corroded, and the service life is extended; in addition, AS (acrylonitrile-styrene copolymer) added in the raw material can form a layer of rigid overflow on the outer surface of PVC by utilizing the benzene ring functional group in the AS molecular chain, further improving the tensile strength and bending strength of the wood-plastic composite material; in addition, by adding fluorescent powder to the raw material, the fluorescent powder is used to make the entire produced wood-plastic composite material have a fluorescent effect, thereby improving the display effect. Therefore, the present invention can not only improve the structural strength, but also has the advantages of high structural stability, long service life, and convenient replacement of photos. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 It is a front view of the present invention;

[0019] Figure 3 It is the rear view of the metal piece;

[0020] Figure 4 It is the front view of the metal part;

[0021] Figure 5 yes Figure 1 A partial enlarged view of point A in the middle.

[0022] The markings in the attached drawings are: 1-main frame, 2-back plate, 3-transparent glass, 4-metal part, 5-first mounting groove, 6-first magnet, 7-second mounting groove, 8-adhesive part, 9-second magnet, 10-limiting groove. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0024] Embodiment 1. A WPC photo frame, comprising: Figures 1 to 5 As shown, it includes a main frame 1, a back plate 2 and a transparent glass 3 arranged on the main frame 1, a metal bottom frame welded by four metal parts 4 is arranged between the main frame 1 and the back plate 2, a first mounting groove 5 is arranged on the back of each metal part 4, and a first magnet 6 is arranged in each first mounting groove 5; a second mounting groove 7 is arranged on the front of each metal part 4, and an adhesive part 8 for connecting the main frame 1 and the metal part 4 is arranged in each second mounting groove 7; a plurality of evenly distributed second magnets 9 are arranged on the side of the back plate 2 facing the metal bottom frame, and the second magnets 9 cooperate with the first magnets 6; the main frame 1 and the back plate 2 are both made of wood-plastic composite materials.

[0025] The main frame 1 is composed of four frame bars, each of which has a width greater than that of the metal member 4; a limiting groove 10 for fixing the transparent glass 3 is provided on the side of the main frame 1 facing the back panel 2, and glass glue for bonding the transparent glass is laid on the inner bottom surface of the limiting groove 10.

[0026] According to the aforementioned WPC photo frame, a WPC photo frame preparation method comprises the following steps:

[0027] A, raw material drying, PVC polyvinyl chloride and DOP dioctyl phthalate are added into an oven in a ratio of 80 parts: 20 parts for drying to obtain raw material A; wood powder and calcium oxide are added into a drying box in a ratio of 85 parts: 15 parts for drying to obtain raw material B; raw material B and amine modifier M are mixed in a ratio of 35 parts: 65 parts, and then added into a drying box for secondary drying to obtain raw material C;

[0028] B. Mixing raw materials: putting raw material A, raw material C, AS acrylonitrile-styrene copolymer, polyamide wax, EBS vinyl bisstearamide and tribasic lead sulfate obtained in step A into a mixer in a ratio of 37-41 parts: 37-41 parts: 6-10 parts: 2-6 parts: 2-6 parts: 4-8 parts for mixing and plasticizing for 10-15 minutes to obtain raw material D; finally, adding 20-30 parts of phosphor to raw material D, stirring and mixing again, and finally obtaining raw material E;

[0029] C. Forming and cutting: adding the raw material E obtained in step B into a mold for hot pressing to obtain a wood-plastic composite profile strip and a wood-plastic composite board, and then cutting them according to the length of the photo frame to be assembled to obtain a frame strip and a backboard 2; at the same time, cutting the entire metal strip according to the length of the photo frame to be assembled to obtain a metal part 4;

[0030] D. Parts processing: first, cut the sides of the frame bar and the metal part 4 so that the sides of the frame bar and the metal part 4 form an inclined surface; then, grooves are made at corresponding positions on the frame bar, the back plate 2 and the metal part 4; then, the grooves opened on the frame bar are filled with adhesive 8, and the second magnet 9 is installed in the grooves opened on the back plate 2; and the first magnet 6 is installed in the grooves opened on the metal part 4;

[0031] E. Assembling the photo frame: firstly, the sides of the four metal strips 4 are arranged opposite to each other to form the shape of the metal bottom frame, and then welding is performed at the positions where each two adjacent metal strips 4 are connected; then, the frame strips are bonded to the metal strips 4 by means of adhesive 8; then, the transparent glass 3 is bonded to the side of the frame strips facing the metal strips 4 by means of glass adhesive; finally, the back panel 2 is mounted on the metal bottom frame by means of the first magnet 6 and the second magnet 9, and a finished photo frame is obtained.

[0032] The drying temperature of the drying work in step A is 100°C to 140°C, and the drying time is 5 to 7 hours; the drying temperature of the secondary drying work is 100°C to 140°C, and the drying time is 3 to 6 hours; the mixing and plasticizing time in step B is 150°C to 170°C; the mold temperature of the hot pressing molding in step C is 140°C to 180°C, and the hot pressing molding time is 1 to 2 hours.

[0033] Embodiment 2. A WPC photo frame, comprising: Figures 1 to 5 As shown, it includes a main frame 1, a back plate 2 and a transparent glass 3 arranged on the main frame 1, a metal bottom frame welded by four metal parts 4 is arranged between the main frame 1 and the back plate 2, a first mounting groove 5 is arranged on the back of each metal part 4, and a first magnet 6 is arranged in each first mounting groove 5; a second mounting groove 7 is arranged on the front of each metal part 4, and an adhesive part 8 for connecting the main frame 1 and the metal part 4 is arranged in each second mounting groove 7; a plurality of evenly distributed second magnets 9 are arranged on the side of the back plate 2 facing the metal bottom frame, and the second magnets 9 cooperate with the first magnets 6; the main frame 1 and the back plate 2 are both made of wood-plastic composite materials.

[0034] The main frame 1 is composed of four frame bars, each of which has a width greater than that of the metal member 4; a limiting groove 10 for fixing the transparent glass 3 is provided on the side of the main frame 1 facing the back panel 2, and glass glue for bonding the transparent glass is laid on the inner bottom surface of the limiting groove 10.

[0035] According to the aforementioned WPC photo frame, a WPC photo frame preparation method comprises the following steps:

[0036] A, raw material drying, PVC polyvinyl chloride and DOP dioctyl phthalate are added into an oven in a ratio of 80 parts: 20 parts for drying to obtain raw material A; wood powder and calcium oxide are added into a drying box in a ratio of 85 parts: 15 parts for drying to obtain raw material B; raw material B and amine modifier M are mixed in a ratio of 35 parts: 65 parts, and then added into a drying box for secondary drying to obtain raw material C;

[0037] B. Mixing raw materials: putting raw material A obtained in step A, raw material C, AS acrylonitrile-styrene copolymer, polyamide wax, EBS vinyl bisstearamide and tribasic lead sulfate into a mixer in a ratio of 37 parts: 41 parts: 6 parts: 6 parts: 2 parts: 8 parts, mixing and plasticizing for 15 minutes to obtain raw material D; finally, adding 20 parts of phosphor to raw material D, stirring and mixing again, and finally obtaining raw material E;

[0038] C. Forming and cutting: adding the raw material E obtained in step B into a mold for hot pressing to obtain a wood-plastic composite profile strip and a wood-plastic composite board, and then cutting them according to the length of the photo frame to be assembled to obtain a frame strip and a backboard 2; at the same time, cutting the entire metal strip according to the length of the photo frame to be assembled to obtain a metal part 4;

[0039] D. Parts processing: first, cut the sides of the frame bar and the metal part 4 so that the sides of the frame bar and the metal part 4 form an inclined surface; then, grooves are made at corresponding positions on the frame bar, the back plate 2 and the metal part 4; then, the grooves opened on the frame bar are filled with adhesive 8, and the second magnet 9 is installed in the grooves opened on the back plate 2; and the first magnet 6 is installed in the grooves opened on the metal part 4;

[0040] E. Assembling the photo frame: firstly, the sides of the four metal strips 4 are arranged opposite to each other to form the shape of the metal bottom frame, and then welding is performed at the positions where each two adjacent metal strips 4 are connected; then, the frame strips are bonded to the metal strips 4 by means of adhesive 8; then, the transparent glass 3 is bonded to the side of the frame strips facing the metal strips 4 by means of glass adhesive; finally, the back panel 2 is mounted on the metal bottom frame by means of the first magnet 6 and the second magnet 9, and a finished photo frame is obtained.

[0041] The drying temperature of the drying work in step A is 100°C, and the drying time is 7 hours; the drying temperature of the secondary drying work is 100°C, and the drying time is 6 hours; the mixing and plasticizing time in step B is 170°C; the mold temperature of the hot pressing molding in step C is 140°C, and the hot pressing molding time is 2 hours.

[0042] Embodiment 3. A WPC photo frame, comprising: Figures 1 to 5 As shown, it includes a main frame 1, a back plate 2 and a transparent glass 3 arranged on the main frame 1, a metal bottom frame welded by four metal parts 4 is arranged between the main frame 1 and the back plate 2, a first mounting groove 5 is arranged on the back of each metal part 4, and a first magnet 6 is arranged in each first mounting groove 5; a second mounting groove 7 is arranged on the front of each metal part 4, and an adhesive part 8 for connecting the main frame 1 and the metal part 4 is arranged in each second mounting groove 7; a plurality of evenly distributed second magnets 9 are arranged on the side of the back plate 2 facing the metal bottom frame, and the second magnets 9 cooperate with the first magnets 6; the main frame 1 and the back plate 2 are both made of wood-plastic composite materials.

[0043] The main frame 1 is composed of four frame bars, each of which has a width greater than that of the metal member 4; a limiting groove 10 for fixing the transparent glass 3 is provided on the side of the main frame 1 facing the back panel 2, and glass glue for bonding the transparent glass is laid on the inner bottom surface of the limiting groove 10.

[0044] According to the aforementioned WPC photo frame, a WPC photo frame preparation method comprises the following steps:

[0045] A, raw material drying, PVC polyvinyl chloride and DOP dioctyl phthalate are added into an oven in a ratio of 80 parts: 20 parts for drying to obtain raw material A; wood powder and calcium oxide are added into a drying box in a ratio of 85 parts: 15 parts for drying to obtain raw material B; raw material B and amine modifier M are mixed in a ratio of 35 parts: 65 parts, and then added into a drying box for secondary drying to obtain raw material C;

[0046] B. Mixing raw materials: putting raw material A, raw material C, AS acrylonitrile-styrene copolymer, polyamide wax, EBS vinyl bisstearamide and tribasic lead sulfate obtained in step A into a mixer in a ratio of 41 parts: 37 parts: 10 parts: 2 parts: 6 parts: 4 parts, mixing and plasticizing for 10 minutes to obtain raw material D; finally, adding 20 to 30 parts of phosphor to raw material D, stirring and mixing again, and finally obtaining raw material E;

[0047] C. Forming and cutting: adding the raw material E obtained in step B into a mold for hot pressing to obtain a wood-plastic composite profile strip and a wood-plastic composite board, and then cutting them according to the length of the photo frame to be assembled to obtain a frame strip and a backboard 2; at the same time, cutting the entire metal strip according to the length of the photo frame to be assembled to obtain a metal part 4;

[0048] D. Parts processing: first, cut the sides of the frame bar and the metal part 4 so that the sides of the frame bar and the metal part 4 form an inclined surface; then, grooves are made at corresponding positions on the frame bar, the back plate 2 and the metal part 4; then, the grooves opened on the frame bar are filled with adhesive 8, and the second magnet 9 is installed in the grooves opened on the back plate 2; and the first magnet 6 is installed in the grooves opened on the metal part 4;

[0049] E. Assembling the photo frame: firstly, the sides of the four metal strips 4 are arranged opposite to each other to form the shape of the metal bottom frame, and then welding is performed at the positions where each two adjacent metal strips 4 are connected; then, the frame strips are bonded to the metal strips 4 by means of adhesive 8; then, the transparent glass 3 is bonded to the side of the frame strips facing the metal strips 4 by means of glass adhesive; finally, the back panel 2 is mounted on the metal bottom frame by means of the first magnet 6 and the second magnet 9, and a finished photo frame is obtained.

[0050] The drying temperature of the drying work in step A is 140°C, and the drying time is 5 hours; the drying temperature of the secondary drying work is 140°C, and the drying time is 3 hours; the mixing and plasticizing time in step B is 150°C; the mold temperature of the hot pressing molding in step C is 180°C, and the hot pressing molding time is 1 hour.

Claims

1. A WPC photo frame, comprising a main frame (1), a back plate (2) and a transparent glass (3) arranged on the main frame (1), characterized in that: A metal bottom frame formed by welding four metal pieces (4) is arranged between the main frame (1) and the back plate (2); a first mounting groove (5) is arranged on the back of each metal piece (4), and a first magnet (6) is arranged in each first mounting groove (5); a second mounting groove (7) is arranged on the front of each metal piece (4), and an adhesive piece (8) for connecting the main frame (1) and the metal piece (4) is arranged in each second mounting groove (7); a plurality of evenly distributed second magnets (9) are arranged on the side surface of the back plate (2) facing the metal bottom frame, and the second magnets (9) cooperate with the first magnets (6); the main frame (1) and the back plate (2) are both made of wood-plastic composite materials.

2. A WPC photo frame according to claim 1, characterized in that: The main frame (1) is composed of four frame bars, and the width of each frame bar is greater than the width of the metal piece (4).

3. A WPC photo frame according to claim 1, characterized in that: A limiting groove (10) for fixing the transparent glass (3) is provided on the side surface of the main frame (1) facing the back plate (2), and glass glue for bonding the transparent glass is laid on the inner bottom surface of the limiting groove (10).

4. A method for preparing a WPC photo frame according to any one of claims 1 to 3, characterized in that: The following steps are involved: A. Drying of raw materials: PVC (polyvinyl chloride) and DOP (dioctyl phthalate) are added into an oven in a ratio of 80 parts: 20 parts for drying to obtain raw material A; Wood powder and calcium oxide are added into a drying oven in a ratio of 85 parts:15 parts for drying to obtain raw material B; raw material B is then mixed with amine modifier M in a ratio of 35 parts:65 parts, and then added into a drying oven for secondary drying to obtain raw material C; B. Mixing raw materials: putting raw material A, raw material C, AS (acrylonitrile-styrene copolymer), polyamide wax, EBS (vinyl bisstearamide) and tribasic lead sulfate obtained in step A into a mixer in a ratio of 37-41 parts: 37-41 parts: 6-10 parts: 2-6 parts: 2-6 parts: 4-8 parts for mixing and plasticizing for 10-15 minutes to obtain raw material D; finally, adding 20-30 parts of phosphor to raw material D, stirring and mixing again, and finally obtaining raw material E; C. Forming and cutting: adding the raw material E obtained in step B into a mold for hot pressing and forming to obtain a wood-plastic composite profile strip and a wood-plastic composite board, and then cutting them according to the length of the photo frame to be assembled to obtain a frame strip and a backboard (2); at the same time, cutting the entire metal strip according to the length of the photo frame to be assembled to obtain a metal part (4); D. Parts processing: first, the side edges of the frame strip and the metal piece (4) are cut so that the side edges of the frame strip and the metal piece (4) form an inclined surface; then, grooves are cut at corresponding positions on the frame strip, the back plate (2) and the metal piece (4); then, the grooves opened on the frame strip are filled with an adhesive (8); the second magnet (9) is installed in the groove opened on the back plate (2); and the first magnet (6) is installed in the groove opened on the metal piece (4); E. Assembling the photo frame: firstly, the side edges of the four metal strips (4) are arranged opposite to each other to form the shape of the metal bottom frame, and then welding is performed at the connection position of each two adjacent metal strips (4); then, the frame strip is bonded to the metal strip (4) by means of an adhesive (8); then, the transparent glass (3) is bonded to the side of the frame strip facing the metal strip (4) by means of glass adhesive; finally, the back plate (2) is mounted on the metal bottom frame by means of a first magnet (6) and a second magnet (9), and a finished photo frame is obtained.

5. A WPC photo frame preparation method according to claim 4, characterized in that: The drying temperature of the drying work in step A is 100° C. to 140° C., and the drying time is 5 to 7 hours; the drying temperature of the secondary drying work is 100° C. to 140° C., and the drying time is 3 to 6 hours.

6. A WPC photo frame preparation method according to claim 4, characterized in that: The mixing and plasticating time in step B is 150° C. to 170° C.

7. A method for preparing a WPC photo frame according to claim 4, characterized in that: The mold temperature of the hot pressing molding in step C is 140° C. to 180° C., and the hot pressing molding time is 1 to 2 hours.

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