阅读说明：本技术 一种泡沫护角及应用该泡沫护角的包装方法 (Foam corner protector and packaging method applying same ) 是由 李莹莹 于 2021-09-15 设计创作，主要内容包括：本发明涉及一种泡沫护角及应用该泡沫护角的包装方法,涉及成品包装技术领域,其包括三角块,所述三角块为泡沫塑料材质,所述三角块的端壁上开设有供门板插设的护角槽,所述护角槽内设置有若干个分层板,其特征在于：所述分层板的端壁上固定设置有一组连接杆,所述护角槽的内侧壁上开设有供连接杆贯穿的连接槽,所述连接槽的长度方向沿三角块的厚度方向设置,所述连接杆贯穿连接槽；所述连接杆上设置有连接组件,所述连接组件用于将连接杆固定在连接槽内。本申请具有满足对不同厚度的门板进行包装保护,提高泡沫护角适用范围的效果。(The invention relates to a foam corner protector and a packaging method applying the same, relating to the technical field of finished product packaging, and the foam corner protector comprises a triangular block, wherein the triangular block is made of foam plastic, the end wall of the triangular block is provided with a corner protector groove for a door plate to be inserted, and the corner protector groove is internally provided with a plurality of layered plates, and is characterized in that: a group of connecting rods is fixedly arranged on the end wall of the layered plate, a connecting groove for the connecting rods to penetrate through is formed in the inner side wall of the corner protecting groove, the length direction of the connecting groove is arranged along the thickness direction of the triangular block, and the connecting rods penetrate through the connecting groove; be provided with coupling assembling on the connecting rod, coupling assembling is used for fixing the connecting rod in the spread groove. This application has and satisfies the door plant to different thickness and pack the protection, improves foam angle bead application scope's effect.)

1. The utility model provides a foam corner protector, includes three hornblocks (1), three hornblocks (1) are the foamed plastic material, offer on the end wall of three hornblocks (1) and supply the door plant to insert corner protector groove (11) of establishing, be provided with a plurality of layering board (2), its characterized in that in corner protector groove (11): a group of connecting rods (21) are fixedly arranged on the end wall of the layered plate (2), a connecting groove (22) for the connecting rods (21) to penetrate through is formed in the inner side wall of the corner protecting groove (11), the length direction of the connecting groove (22) is arranged along the thickness direction of the triangular block (1), and the connecting rods (21) penetrate through the connecting groove (22); be provided with coupling assembling (3) on connecting rod (21), coupling assembling (3) are used for fixing connecting rod (21) in spread groove (22).

2. The foam corner bead defined in claim 1, wherein: coupling assembling (3) are including connecting plate (31) and nail (32), nail (32) are provided with a plurality of, the fixed one end of keeping away from layering board (2) direction at connecting rod (21) that sets up in connecting plate (31), connecting plate (31) are located three hornblocks (1) and keep away from the one end of angle bead groove (11) direction, connecting plate (31) run through on one side of three hornblocks (1) directions and are provided with a plurality of sliding groove (311), nail (32) run through sliding groove (311) and insert and establish to three hornblocks (1).

3. The foam corner bead defined in claim 2, wherein: the nail (32) comprises a nail rod (321) and a nail cap (322), the nail rod (321) penetrates through the sliding groove (311), the nail cap (322) is fixedly arranged at one end, away from the triangular block (1), of the nail rod (321), a fixing rod (4) is fixedly arranged on one side, facing the direction of the connecting plate (31), of the nail cap (322), and a limiting block (51) is fixedly arranged on the outer side wall of the fixing rod (4); the outer side wall of the connecting plate (31) is provided with a fixing groove (41) for inserting the fixing rod (4) and the limiting block (51); and a limiting groove (5) for the limiting block (51) to insert and abut against is formed in the inner side wall of the fixing groove (41).

4. The foam corner bead defined in claim 3, wherein: the triangular block (1) is provided with scale marks (12) on one side in the direction of the connecting groove (22), and the scale marks (12) are arranged along the length direction of the connecting groove (22).

5. The foam corner bead defined in claim 4, wherein: a butting groove (6) is formed in the inner side wall of the limiting groove (5), the length direction of the butting groove (6) is arranged along the length direction of the connecting plate (31), and a butting rod (61) capable of butting against the limiting block (51) is arranged in the butting groove (6) in a sliding mode; still be provided with slip subassembly (7) on connecting plate (31), slip subassembly (7) are used for driving a plurality of butt joint pole (61) and slide in butt joint groove (6) simultaneously.

6. The foam corner bead defined in claim 5, wherein: the connecting plate (31) is fixedly provided with a return spring (8) which is abutted against the nail cap (322), and the return spring (8) is sleeved on the nail rod (321).

7. The foam corner bead defined in claim 5, wherein: the sliding assembly (7) comprises a rotary disc (71), arc protrusions (72), a knob (73) and a rotating shaft (74), a driving cavity (312) is formed in the connecting plate (31), the driving cavity (312) is communicated with the plurality of abutting grooves (6), the rotary disc (71) is rotatably arranged in the driving cavity (312), the arc protrusions (72) are integrally arranged on the side wall of the rotary disc (71), the arc protrusions (72) can abut against one end, away from the direction of the limiting block (51), of the abutting rod (61), and one end, facing the direction of the arc protrusions (72), of the abutting rod (61) is arc-shaped; the rotating shaft (74) is fixedly arranged at the center of the surface of the turntable (71), and the rotating shaft (74) penetrates through the connecting plate (31) and is fixedly connected with the knob (73).

8. The foam corner bead defined in claim 1, wherein: the laminated board (2) is made of foam plastic, and a plurality of interference bulges (23) are integrally arranged on the upper surface and the lower surface of the laminated board (2).

9. The foam corner bead defined in claim 1, wherein: the triangular block is characterized in that a stabilizing disc (9) is integrally arranged on the surface of the triangular block (1), a stabilizing groove (91) is formed in one side, away from the stabilizing disc (9), of the triangular block (1), and the stabilizing disc (9) and the stabilizing groove (91) are matched with each other.

10. The packaging method applying the foam corner protector is characterized in that: the method comprises the following steps:

confirming the number of packaging layers according to the size of the door panel, and selecting the foam corner protector and the foam edge protector according to any one of claims 1 to 9 with proper specifications;

foam is filled between the door plate and the door plate to support the door plate;

inserting a door panel into the corner bead slot (11) of a foam corner bead as claimed in any of claims 1 to 9, adjacent door panels being separated by a laminate (2);

placing the foam edge protection card around the door plate;

selecting a thermal shrinkage film with proper specification, and placing the door panel sleeved with the foam edge protector and the foam corner protector in the thermal shrinkage film;

cutting the redundant heat shrinkable film;

and hot-pressing and packaging the thermal shrinkage film on the door panel.

Technical Field

The invention relates to the technical field of finished product packaging, in particular to a foam corner protector and a packaging method applying the foam corner protector.

Background

At present, foam plastic is a kind of polymer material formed by dispersing a large number of gas micropores in solid plastic, and has the characteristics of light weight, heat insulation, sound absorption, shock absorption and the like, and most of the foam plastic packages the corners of finished products during the packaging and transportation of the finished products so as to protect the products during the transportation.

A foam corner protector is designed in the related art, and referring to fig. 1, the foam corner protector comprises a group of first enclosing plates 101 and a group of second enclosing plates 102, the first enclosing plates 101 and the second enclosing plates 102 are integrally formed, end walls of the two first enclosing plates 101 are integrally formed, the length directions of the two first enclosing plates 101 are mutually perpendicular, the second enclosing plates 102 are integrally arranged at two ends of the first enclosing plates 101, a corner protector groove 11 for inserting door panel corners is formed between the first enclosing plates 101 and the second enclosing plates 102, and a plurality of layered plates 2 are integrally and fixedly arranged in the corner protector groove 11; when packing the door plant finished product, insert the door plant and establish to different between the layering board 2, the layering board 2 separates adjacent door plant, when transporting the door plant finished product, first bounding wall 101 and second bounding wall 102 protect the corner of door plant, and the layering board 2 reduces the condition that adjacent door plant bumps.

In view of the above-mentioned related technologies, the inventor thinks that when the door panel is packaged, in order to achieve the protection effect on the door panel, the layered plate is just attached to two sides of the door panel, and the door panels with different thicknesses cannot be packaged and protected, so that the applicability degree is limited, and therefore needs to be improved.

Disclosure of Invention

In order to meet the requirements of packaging and protecting door plates with different thicknesses and improve the application range of the foam corner protector, the application provides the foam corner protector and the packaging method applying the foam corner protector.

In a first aspect, the following technical scheme is adopted for the foam corner protector provided by the application:

a foam corner protector comprises a triangular block, wherein the triangular block is made of foam plastics, a corner protector groove for a door plate to be inserted is formed in the end wall of the triangular block, a plurality of layered plates are arranged in the corner protector groove, a group of connecting rods are fixedly arranged on the end wall of the layered plates, a connecting groove for the connecting rods to penetrate through is formed in the inner side wall of the corner protector groove, the length direction of the connecting groove is arranged along the thickness direction of the triangular block, and the connecting rods are arranged in the connecting groove in a sliding manner; be provided with coupling assembling on the connecting rod, coupling assembling is used for fixing the connecting rod in the spread groove.

Through adopting above-mentioned technical scheme, when protecting the corner of a plurality of door plant through three hornblocks, insert the door plant and establish the angle bead inslot on three hornblocks, and separate adjacent door plant through the layering board, the layering board avoids adjacent door plant to appear contact damage, the user can drive the connecting rod and slide in the spread groove simultaneously, change the distance between the connecting rod, and fix the connecting rod through coupling assembling, thereby the distance between the layering board in the angle bead inslot has been changed, so that insert the door plant of different thickness specifications and establish between the layering board, be favorable to three hornblocks to protect the door plant of different grade type specifications, the application scope of foam angle bead has been strengthened.

Optionally, coupling assembling includes connecting plate and nail, the nail is provided with a plurality of, the fixed one end of keeping away from the layering board direction at the connecting rod that sets up of connecting plate, the connecting plate is located the one end that the corner bead groove direction was kept away from to the triangle, the connecting plate runs through on one side of triangle orientation and is provided with a plurality of groove that slides, the nail runs through the groove that slides and inserts and establish to the triangle in the block.

By adopting the technical scheme, the triangular blocks are made of foamed plastic materials, and after the positions of the connecting rods in the connecting grooves are adjusted, the nails can be driven to slide in the sliding grooves and inserted into the triangular blocks, and the nails are abutted against the sliding grooves and the triangular blocks at the same time, so that the positions of the connecting plates are fixed, the positions of the connecting rods in the connecting grooves are fixed, and the door plates can be supported by the layered plates when placed between the layered plates; when the distance between the layering board needs to be changed, the nail can be taken out from the triangular block, then the connecting rod is driven to slide in the connecting groove, the position of the connecting rod in the connecting groove can be quickly adjusted through the connecting assembly, and the operation is convenient and quick.

Optionally, the nail comprises a nail rod and a nail cap, the nail rod penetrates through the sliding groove, the nail cap is fixedly arranged at one end of the nail rod far away from the triangular block, a fixing rod is fixedly arranged on one side of the nail cap facing the connecting plate, and a limiting block is fixedly arranged on the outer side wall of the fixing rod; the outer side wall of the connecting plate is provided with a fixing groove for inserting the fixing rod and the limiting block; and a limit groove for the limit block to insert and abut against is formed in the inner side wall of the fixed groove.

Through adopting above-mentioned technical scheme, when the drive nail pole slided to the triangle piece orientation at the inslot that slides, the nail pole is inserted and is established to the triangle piece in, and the dead lever inserts and establishes to the fixed slot in, the dead lever slides in the fixed slot, when stopper and spacing groove are neat at ordinary times each other, under self deformation effort, the stopper is inserted and is established to the spacing inslot, stopper and spacing inslot wall offset this moment, the dead lever can't slide in the fixed slot, and then fix the nail, fixed effect when the nail is fixed connecting plate and triangle piece has been improved.

Optionally, the triangular block is provided with scale marks on one side in the direction of the connecting groove, and the scale marks are arranged along the length direction of the connecting groove.

Through adopting above-mentioned technical scheme, when adjusting the position of connecting rod in the spread groove with the distance of adjusting between the adjacent layering board, observe the position of connecting rod in the spread groove through the scale mark, the distance between the convenient accurate regulation layering board reduces the condition that the clearance appears between the three hornblocks to the time division board of door plant corner protection and the door plant.

Optionally, an abutting groove is formed in the inner side wall of the limiting groove, the length direction of the abutting groove is arranged along the length direction of the connecting plate, and an abutting rod capable of abutting against the limiting block is slidably arranged in the abutting groove; still be provided with the subassembly that slides on the connecting plate, the subassembly that slides is used for driving a plurality of butt pole and slides in the butt inslot simultaneously.

Through adopting above-mentioned technical scheme, when needing to break away from nail and triangle piece each other, slide at the butt inslot through a plurality of butt joint pole of the subassembly drive that slides, will butt joint pole and stopper counterbalance to break away from stopper and spacing groove each other, can order about the nail pole this moment and slide far away from the triangle piece direction in the groove that slides, to separating between connecting plate and the triangle piece.

Optionally, a return spring abutting against the nail cap is fixedly arranged on the connecting plate, and the return spring is sleeved on the nail rod.

Through adopting above-mentioned technical scheme, when separating between connecting plate and the triangle piece, the subassembly that slides orders about stopper and spacing groove and breaks away from the back each other, and reset spring offsets with the head of a nail, drives the nail pole and slides at the inslot that slides, conveniently breaks away from nail pole and triangle piece fast, has reduced the degree of difficulty when adjusting the operation.

Optionally, the sliding assembly includes a rotary table, an arc protrusion, a knob and a rotating shaft, a driving cavity is arranged in the connecting plate, the driving cavity is communicated with the plurality of abutting grooves, the rotary table is rotatably arranged in the driving cavity, the arc protrusion is integrally arranged on the side wall of the rotary table, the arc protrusion can abut against one end of the abutting rod away from the limiting block, and one end of the abutting rod facing the arc protrusion is arc-shaped; the rotating shaft is fixedly arranged at the center of the surface of the turntable and penetrates through the connecting plate to be fixedly connected with the knob.

Through adopting the above technical scheme, when needing the drive butt joint pole to slide at the butt inslot, through rotating the knob, the knob passes through the rotation axis and drives the carousel rotation, the carousel rotates the one end that drives the circular arc arch and keep away from the stopper direction with the butt pole and offsets, the bellied quantity of circular arc is unanimous with butt pole quantity, the circular arc arch drives the butt pole and slides to the spacing groove direction at the butt inslot, make butt joint pole and stopper offset, break away from stopper and spacing groove each other, realize rotating the knob and drive the effect that a plurality of stopper breaks away from with the spacing groove simultaneously, when breaking away from nail and triangle-shaped piece, the convenience of operation has been improved.

Optionally, the layered plate is made of a foamed plastic material, and a plurality of interference protrusions are integrally arranged on the upper surface and the lower surface of the layered plate.

Through adopting above-mentioned technical scheme, adjust the distance between the board of share and to the fixed back of position of board of share according to the thickness of door panel, insert the door plant and establish to the angle bead inslot, the interference arch can offset with the door plant, has increased the frictional force between layer-dividing board and the door plant surface to three hornblocks are when protecting the door panel corner, and three hornblocks are difficult for taking place to break away from, have improved the stability when three hornblocks protect.

Optionally, a stabilizing disc is integrally arranged on the surface of the triangular block, a stabilizing groove is formed in one side, away from the direction of the stabilizing disc, of the triangular block, and the stabilizing disc and the stabilizing groove are matched with each other.

Through adopting above-mentioned technical scheme, when stacking the multiunit door plant, when stacking three hornblocks together, can insert the firm dish and establish to the stable inslot on the adjacent three hornblocks, the inside wall in stable dish and stable groove offsets, has improved the stability of three hornblocks when stacking the door plant, has further reduced the potential safety hazard when transporting or depositing the door plant.

In a second aspect, the application provides a packaging method using the foam corner protector, which adopts the following technical scheme: the method comprises the following steps:

confirming the number of packaging layers according to the size of the door panel, and selecting the foam corner protector and the foam edge protector with proper specifications;

foam is filled between the door plate and the door plate to support the door plate;

inserting the door panels into the corner protection grooves on the foam corner protectors, and separating the adjacent door panels by the layering plates;

placing the foam edge protection card around the door plate;

selecting a thermal shrinkage film with proper specification, and placing the door panel sleeved with the foam edge protector and the foam corner protector in the thermal shrinkage film;

cutting the redundant heat shrinkable film;

and hot-pressing and packaging the thermal shrinkage film on the door panel.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the triangular blocks, the corner protection grooves, the layering plates, the connecting rods, the connecting grooves and the connecting assemblies, when corners of a plurality of door panels are protected by the triangular blocks, the door panels are inserted into the corner protection grooves on the triangular blocks, the adjacent door panels are separated by the layering plates, the connecting rods are driven to slide in the connecting grooves, the connecting rods are fixed by the connecting assemblies, the distance between the layering plates in the corner protection grooves is changed, so that the door panels with different thickness specifications can be inserted between the layering plates, the triangular blocks are favorable for protecting the door panels with different specifications, and the application range of the foam corner protector is enlarged;

2. by arranging the connecting plate, the sliding groove, the nail rod, the nail cap, the fixed rod, the fixed groove, the limiting groove and the limiting block, when the connecting rod is fixed, the nail rod slides in the sliding groove, the fixed rod slides in the fixed groove, the limiting block can be inserted into the limiting groove after the nail rod is inserted into the triangular block, the limiting block abuts against the limiting groove, the nail rod abuts against the sliding groove and the triangular block at the same time, the fixing of the position of the connecting rod in the connecting groove is realized, and the fixing effect of the connecting rod is good;

3. through setting up the butt groove, the butt joint pole, reset spring, the drive chamber, the carousel, the circular arc is protruding, knob and rotation axis, when adjusting the position of connecting rod, it drives the carousel and rotates to rotate the knob, and then drives the circular arc arch and offsets with the butt pole, makes a plurality of butt pole slide at the butt inslot simultaneously, and then makes butt joint pole and stopper offset, breaks away from stopper and spacing groove each other fast, improves the convenience when adjusting the distance between the layer board, and the convenience is used the foam angle bead.

Drawings

Fig. 1 is a schematic structural view of a foam bead provided in the related art.

Fig. 2 is a schematic structural diagram of a foam corner protector provided in an embodiment of the present application.

FIG. 3 is a schematic view showing the connection between the nail and the joint plate according to the embodiment.

Fig. 4 is a sectional view of a connection plate used in the embodiment.

Fig. 5 is a schematic view of a stabilizing slot used in an embodiment.

Description of reference numerals: 1. a triangular block; 11. a corner protecting groove; 12. scale lines; 2. a laminate; 21. a connecting rod; 22. connecting grooves; 23. interference protrusions; 3. a connecting assembly; 31. a connecting plate; 311. a sliding groove; 312. a drive chamber; 32. nailing; 321. a nail rod; 322. a nail cap; 4. fixing the rod; 41. fixing grooves; 5. a limiting groove; 51. a limiting block; 6. a butt joint groove; 61. a butting rod; 7. a slipping component; 71. a turntable; 72. a circular arc bulge; 73. a knob; 74. a rotating shaft; 8. a return spring; 9. a stabilizing disc; 91. a stabilizing groove; 101. a first enclosing plate; 102. and a second enclosing plate.

Detailed Description

The present application is described in further detail below with reference to figures 2-5.

The embodiment of the application discloses a foam corner protector. Referring to fig. 2, the protective device comprises a triangular block 1, wherein the triangular block 1 is in a right-angled triangle shape, the triangular block 1 is made of foam plastic, and the triangular block 1 is light in weight, has good deformation capacity and can achieve a good protective effect. The end wall of the triangular block 1 is provided with a corner protection groove 11 for a door panel to be inserted, and the corner protection groove 11 is positioned on the longest side of the triangular block 1. Be provided with a plurality of layering board 2 in the angle bead groove 11, the end wall of layering board 2 board and the inside wall in angle bead groove 11 are laminated each other, and the material of layering board 2 is the foam plastics equally, and the upper surface of layering board 2 and lower surface homogeneous body are provided with a plurality of interference and protruding 23. Insert the door plant corner and establish to corner protector groove 11 in, the layering board 2 can separate the door plant, and three hornblocks 1 can be to the protection of door plant corner, and frictional force when interference arch 23 has improved layering board 2 and door plant surface contact has strengthened the stability of three hornblocks 1 when protecting the door plant.

Referring to fig. 2, a set of tie bars 21 are symmetrically and fixedly attached to the end wall of the layered plate 2 by bonding, and the tie bars 21 are located at two ends of the layered plate 2 facing the corner protection groove 11. Offer the connecting groove 22 that supplies connecting rod 21 to run through on the inside wall of angle bead groove 11, the thickness direction setting of three hornblocks 1 is followed to the length direction of connecting groove 22, and connecting rod 21 runs through connecting groove 22, and connecting rod 21 can slide along the length direction of connecting groove 22. Be provided with coupling assembling 3 on connecting rod 21, fix connecting rod 21 through coupling assembling 3, can change the position of connecting rod 21 in spread groove 22, and then changed the distance between the interior division board 2 of corner protector groove 11 to insert the door plant with different thickness specifications and establish to between the division board 2.

Referring to fig. 2, the triangular block 1 is provided with scale marks 12 on one side in the direction of the connecting groove 22, and the scale marks 12 are arranged along the length direction of the connecting groove 22. When the position of the connecting rod 21 is adjusted, the distance between the adjacent layered plates 2 is conveniently and accurately controlled by observing the scale marks 12.

Referring to fig. 2 and 3, the connecting member 3 includes two connecting plates 31 and two nails 32, and the connecting plates 31 are fixedly disposed at an end of the connecting rod 21 away from the laminated plate 2 in the embodiment of the nail 32 of one connecting member 3. The nails 32 are symmetrically arranged on two sides of the connecting rod 21, sliding grooves 311 for the nails 32 to penetrate through are formed in the surface of the connecting plate 31, and the nails 32 penetrate through the sliding grooves 311 and are inserted into the triangular block 1. The drive nail 32 slides in the groove 311 that slides, and nail 32 can insert fast and establish to triangle piece 1 in, or break away from with triangle piece 1, when nail 32 offsets with triangle piece 1 and the groove 311 that slides simultaneously, can be to the rigidity of connecting rod 21.

Referring to fig. 3, the nail 32 includes a nail shaft 321 and a nail cap 322, the nail shaft 321 penetrates through the sliding slot 311, and the nail cap 322 is integrally disposed at one end of the nail shaft 321 away from the triangular block 1. The nail cap 322 is provided with dead lever 4 towards one side welded fastening of connecting plate 31 direction, and an organic whole is provided with stopper 51 on the lateral wall of dead lever 4, offers on the lateral wall of connecting plate 31 to supply dead lever 4 and stopper 51 to insert the fixed slot 41 of establishing, offers on the inside wall of fixed slot 41 to supply stopper 51 to insert the spacing groove 5 of establishing. When the cap 322 is followed closely in inserting the pole 321 and establishing to triangle block 1 as the drive, dead lever 4 is smooth in fixed slot 41, when stopper 51 and spacing groove 5 are neat each other at ordinary times, deformation is resumeed to dead lever 4, stopper 51 inserts and establishes spacing groove 5 this moment in, stopper 51 offsets with 5 inner walls of spacing groove, and dead lever 4 can not slide in fixed slot 41, and then fixes nail 32, has improved the fixed effect of nail 32 when being connected between connecting plate 31 and triangle block 1.

Referring to fig. 3 and 4, a butt groove 6 is provided on the inner side wall of the limit groove 5, the length direction of the butt groove 6 is arranged along the length direction of the connecting plate 31, a butt rod 61 capable of abutting against the limit block 51 is slidably arranged in the butt groove 6, and both ends of the butt rod 61 are arc-shaped. A return spring 8 which is abutted against the nail cap 322 is fixedly arranged on the connecting plate 31, and the return spring 8 is sleeved on the nail rod 321. Still be provided with on the connecting plate 31 and be used for driving two butt joint poles 61 and simultaneously at butt inslot 6 internal slipping subassembly 7 that slides, when needing adjusting connecting rod 21 position, through 7 drive butt joint poles 61 that slide in butt inslot 6 of subassembly that slides, butt pole 61 offsets with stopper 51, makes stopper 51 and spacing groove 5 break away from each other, and reset spring 8 orders about nail 32 this moment and slides to keeping away from triangle piece 1 direction to be convenient for to the quickly separating between connecting plate 31 and the triangle piece 1.

Referring to fig. 3 and 4, the sliding assembly 7 includes a rotary disc 71, a circular arc protrusion 72, a knob 73 and a rotating shaft 74, a driving cavity 312 is provided in the connecting plate 31, and the driving cavity 312 is communicated with the two abutting grooves 6 on the connecting plate 31. The rotary disc 71 is rotatably arranged in the driving cavity 312, two circular arc protrusions 72 are integrally arranged on the side wall of the rotary disc 71, and the circular arc protrusions 72 can abut against one end of the abutting rod 61 away from the limiting block 51. The rotating shaft 74 is fixedly arranged at the center of the side of the turntable 71 far away from the triangular block 1, and the rotating shaft 74 penetrates through the connecting plate 31 and is fixedly connected with the knob 73. When the butt-joint rod 61 is required to be driven to slide in the butt-joint groove 6, the knob 73 is rotated through the rotating shaft 74 to drive the rotary disc 71 to rotate, so that the circular arc protrusion 72 and one end of the butt-joint rod 61, which is far away from the direction of the limiting block 51, are abutted, the butt-joint rod 61 is driven to slide towards the direction of the limiting groove 5, the butt-joint rod 61 is abutted against the limiting block 51, the limiting block 51 and the limiting groove 5 are separated from each other, and the knob 73 is rotated to drive the two limiting blocks 51 to be separated from the limiting groove 5 simultaneously.

Referring to fig. 2 and 5, a stabilizing disc 9 is integrally arranged on the surface of the triangular block 1, a stabilizing groove 91 is formed in one side of the triangular block 1 away from the direction of the stabilizing disc 9, and the stabilizing disc 9 and the stabilizing groove 91 are matched with each other. When stacking a plurality of groups of door plates, when stacking the triangular blocks 1 together, the stabilizing disc 9 can be inserted into the stabilizing groove 91 formed in the adjacent triangular block 1, the stabilizing disc 9 is abutted to the inner side wall of the stabilizing groove 91, and the stability of the triangular block 1 when stacking the door plates is improved.

The implementation principle of a foam corner protector in the embodiment of the application is as follows: when transporting a plurality of door plants and depositing, rotate knob 73 earlier, drive carousel 71 and rotate, and then drive circular arc arch 72 and butt pole 61 and offset, support and make butt pole 61 offset with stopper 51, break away from stopper 51 and spacing groove 5 each other, reset spring 8 offsets with nail cap 322 this moment, and nail pole 321 can break away from each other with triangle 1. Can drive connecting rod 21 and slide in spread groove 22 this moment, adjust the position of connecting rod 21 in spread groove 22 through scale mark 12, then press nail cap 322, to nail pole 321 and insert and establish to three hornblocks 1 in, treat that stopper 51 inserts and establish to spacing inslot 5, stopper 51 offsets with 5 inside walls of spacing groove, realize being connected between connecting plate 31 and the three hornblocks 1 through nail 32, quick adjustment the distance between adjacent layering board 2, convenient operation is swift, so that insert the door plant of different thickness specifications and establish to between the layering board 2, be favorable to three hornblocks 1 to protect the door plant of different grade type specifications, the application scope of foam angle bead has been strengthened.

The application also provides a packaging method applying the foam corner protector, which adopts the following technical scheme: the method comprises the following steps:

confirming the number of packaging layers according to the size of the door panel, and selecting the foam corner protector and the foam edge protector with proper specifications;

foam is filled between the door plate and the door plate to support the door plate;

adjusting the distance between the adjacent layered plates 2 in the foam corner protector according to the thickness of the door panel;

inserting the door panel into the corner protection groove 11 on the foam corner protection as described above, and separating the adjacent door panels by the layering plate 2;

placing the foam edge protection card around the door plate;

selecting a thermal shrinkage film with proper specification, and placing the door panel sleeved with the foam edge protector and the foam corner protector in the thermal shrinkage film;

cutting the redundant heat shrinkable film;

and hot-pressing and packaging the thermal shrinkage film on the door panel.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.