Combined main rubber frame for frame box

Abstract

The utility model discloses a combined main rubber frame for a frame box, the combined main rubber frame comprises a rubber frame main body, a sewing rubber strip and a zipper, the rubber frame main body comprises a plurality of edge strips and a plurality of corner fittings, the adjacent edge strips are connected through the corner fittings, the top of the rubber frame main body is provided with a mounting groove, and the lower end of the sewing rubber strip is inserted from the top end of the mounting groove and fixed. By adopting the technical scheme, the rubber frame main body is split into the ring shape which is formed by mutually splicing and assembling the plurality of edge strips and the corner fittings, the edge strips with the same length as each edge of the box shell are cut in the manufacturing process, and then the edge strips are mutually connected by the plurality of corner fittings, so that the length of the edge strips can be adjusted according to the sizes of different box shells, and therefore, the production cost is reduced, and the production efficiency is improved. Mould corresponding to various box shells with different sizes does not need to be arranged, and the manufacturing cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of luggage material and manufacturing process, concretely relates to a combined main glue frame for frame body box. BACKGROUND

[0002] Suitcase, also known as travel box or trolley case, is a box used to place articles when going out, which is one type of luggage. Generally, suitcase is used to place clothes, personal care articles and souvenirs needed on a journey.

[0003] The present box is basically composed of two box shells, the main glue frame is arranged on the opening side, the inner lining is installed on the inner side of the main glue frame, the zipper is installed on the top through the sewing glue strip, the main glue frame is an integral strip-shaped and is bent into a shape suitable for the opening side of the box shell through hot bending, and is connected with the box shell through ultrasonic welding or adhesive after being sleeved on the opening side of the box shell, the T-shaped groove is arranged on the top of the main glue frame, the zipper is installed on the upper end of the sewing glue strip through sewing thread, hot pressing, adhesive and the like, the lower end of the sewing glue strip is T-shaped, and the sewing glue strip needs to be aligned with the opening of one end of the T-shaped groove on the main glue frame during installation, and then the sewing glue strip is pulled and installed into the T-shaped groove of the sewing glue strip.

[0004] When the fitting surface of the box shell or the main glue strip is not clean enough, the adhesive is selected incorrectly, the amount of glue is insufficient or is not evenly distributed, the adhesion effect of the box shell and the main glue strip will be affected, and when the welding parameter is set improperly, the material compatibility is poor or the welding surface is designed unreasonably, the ultrasonic welding firmness of the box shell and the main glue strip will be affected.

[0005] In addition, since the length of the main glue frame is relatively long, the sewing glue strip is installed through pulling, which consumes a long time and affects the processing efficiency.

[0006] The manufacturing process of the present main glue frame generally includes the following steps: the prepared raw materials and additives are added into a mixing mill or an open mill according to a certain proportion for mixing, the mixed glue is extruded into a tubular parison through an extruder, the tubular parison with appropriate length is heated and bent on a mold corresponding to the size of the box shell, the main glue strip suitable for the shape of the box frame is obtained after cooling, the joints at both ends of the tubular parison are fixed through adhesive or ultrasonic welding, and finally the main glue frame is installed on the box shell through adhesive or ultrasonic welding.

[0007] According to different sizes of the frame body box, different shaped molds need to be configured, the manufacturing cost is high, and the fixing mode of adhesive or ultrasonic welding is not firm enough. UTILITY MODEL CONTENTS

[0008] The utility model aims at solving one of the technical problems in the prior art.

[0009] The application provides a combined main frame for a frame box, which comprises a frame body, a sewn frame strip, a zipper and a lining, the frame body comprises a plurality of side strips and a plurality of corner pieces, adjacent side strips are connected through corner pieces, the frame body is provided with a mounting groove at the top, and the lower end of the sewn frame strip is inserted into and fixed from the top end of the mounting groove.

[0010] A plurality of fasteners are further included for fixing the frame body on the box shell and reinforcing the connection between the sewn frame strip and the frame body.

[0011] A shielding strip is detachably mounted on the outer side of the frame body for shielding the outer end of the fastener.

[0012] The corner piece comprises a connecting head, and the two ends of the connecting head are insertedly mounted with adjacent side strips through an insertion structure.

[0013] The inner side bottom of each side strip and each corner piece is provided with a first reinforcing strip, and adjacent first reinforcing strips are connected through a positioning piece with a positioning groove.

[0014] The positioning piece is in a U shape, and a positioning groove is formed in the inside, the inner side bottom of each side strip and each corner piece is further provided with a second reinforcing strip, the upper end of the positioning piece is inserted between the second reinforcing strip and the first reinforcing strip, the upper end of the positioning piece extends into the second reinforcing strip and the first reinforcing strip, and the lower end abuts against the bottom surface of the lower end of the corner piece and the side strip.

[0015] A clamping groove arranged on the inner side of the bottom of the frame body is further included, and a frame strip is arranged on the periphery of the lining and detachably mounted on the clamping groove through a detachable assembly.

[0016] A buckle piece, a first reinforcing strip and a stop block are further included, the first reinforcing strip is fixedly arranged on the bottom of the frame body, the buckle piece is clamped with the first reinforcing strip, the stop block is inserted in the clamping groove and fixedly connected with the buckle piece, the buckle piece comprises a lower plate and a vertical plate which are connected with each other, one end of the lower plate is fixedly connected with the stop block, an insertion groove is formed between the vertical plate, the lower plate and the stop block, a buckle is arranged on the upper end of the vertical plate and extends into the insertion groove, and the first reinforcing strip is inserted into the insertion groove and fixed through the clamping of the buckle and the buckle.

[0017] A manufacturing method of the main frame is simultaneously disclosed, which is suitable for the combined main frame for the frame box and comprises the following steps.

[0018] S1, extruding a long side strip through an extruder;

[0019] S2, manufacturing a corner piece through an injection molding machine and an injection molding die;

[0020] S3, cutting the long side strip to obtain a plurality of side strips with lengths suitable for the four sides of the box frame, taking a suitable number of corner pieces, and fixedly connecting the two ends of each corner piece with the end portions of each side strip to form a main frame.

[0021] The two ends of each corner piece and each side strip are fixedly connected through insertion, adhesive or ultrasonic welding in step S3.

[0022] The utility model discloses the beneficial effect is as follows:

[0023] 1, the sewing rubber strip of this application only needs to be installed to the installation groove in lower end, then carries out pressing and can be installed, and cooperates fastener reinforcement, compared with prior art, the efficiency of the sewing rubber strip of this application installation is improved.

[0024] 2, install to the box shell through multiple fasteners, improve the connection firmness of the rubber frame main part and the box shell.

[0025] 3, the edge angle radian of different size box shell is consistent, and the only difference is that the side length is different, the corner piece of this application is equivalent to the standard part, and is used in the edge angle of the same size box shell, the corner piece is manufactured in large quantities through the mode of mould injection, and the edge strip is uniformly extruded by extruder, and then the length is cut according to the requirement, compared with prior art, the corresponding hot bending mould need not be configured according to different size box shell, only need to configure the injection mould for the injection of corner piece, cooperate the original injection molding machine, and the corner piece standard part can be mass-produced, the manufacturing efficiency of the rubber frame main part is improved, the rubber frame main part is connected by multiple corner pieces and edge strips when assembling, the manufacturing cost is reduced, and the economic benefit is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the combined main rubber frame and box shell installation state perspective drawing for frame box in the embodiment of this application.

[0027] Figure 2 It is the perspective drawing of combined main rubber frame for frame box in the embodiment of this application.

[0028] Figure 3 It is the position section view of positioning piece in the embodiment of this application.

[0029] Figure 4 It is the local perspective drawing of combined main rubber frame for frame box in the embodiment of this application.

[0030] Figure 5 It is the local perspective drawing of combined main rubber frame for frame box in the embodiment of this application.

[0031] Figure 6 It is the local perspective drawing of combined main rubber frame for frame box in the embodiment of this application.

[0032] Figure 7 It is the perspective drawing of corner piece in the embodiment of this application.

[0033] Figure 8 It is the position section view of buckle piece in the embodiment of this application.

[0034] Figure 9 It is the assembly structure diagram when fastener is peg in the embodiment of this application. DETAILED DESCRIPTION

[0035] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0036] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0037] The combined main plastic frame for frame boxes provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0038] Example 1:

[0039] like Figures 1 to 9 As shown, in this embodiment, a combined main frame for a frame box is disclosed, which includes a frame body 1, a sewing adhesive strip 2, a zipper 3 and a lining 4. The frame body 1 includes a plurality of side strips 101 and a plurality of corner pieces 102. Adjacent side strips 101 are connected by corner pieces 102. The top of the frame body 1 is provided with an installation groove 20, and the lower end of the sewing adhesive strip 2 is inserted into and fixed from the top of the installation groove 20.

[0040] Using the above-mentioned combined main frame, such as Figure 1 As shown, multiple side strips 101 and several corner pieces 102 are combined to form a plastic frame body 1 that conforms to the outline of the open end of the box shell 100, such as... Figure 3 and Figure 4 As shown, the top of the frame body 1 has an installation groove 20. The sewing adhesive strip 2 is inserted into the installation groove 20, and then the frame body 1 is installed at the open end of the box shell 100. The outer side abuts against the inner side wall of the open end of the box shell 100. The sewing adhesive strip 2 of this application is installed quickly, which improves production efficiency.

[0041] Example 2:

[0042] The difference between the embodiment 1 is that, in addition to including the structural features of the preceding embodiments, in the specific embodiments of the present application, a plurality of fasteners 5 are further included for fixing the rubber frame body 1 on the box shell 100 and reinforcing the connection between the sewn rubber strip 2 and the rubber frame body 1.

[0043] As shown in Figure 3 , after the rubber frame body 1 with the sewn rubber strip 2 is installed on the open side of the box shell 100, the fasteners 5 are used to fix the box shell 100 and the rubber frame body 1, specifically, the fasteners 5 are arranged in the edge strips 101 of the box shell 100 and the rubber frame body 1, and simultaneously pass through the sewn rubber strip 2, so that the box shell 100 and the rubber frame body 1 are firmly connected, and the sewn rubber strip 2 is reinforced, thereby improving the connection firmness between the box shell 100 and the rubber frame body 1 and the connection firmness between the rubber frame body 1 and the sewn rubber strip 2, and the installation is simple.

[0044] The shielding strip 9 is sleeved on the outer side of the rubber frame body 1 and is fixed by adhesive or ultrasonic welding, and the lower part extends downward to shield the fasteners 5, thereby improving the appearance of the outer side of the box shell 100.

[0045] Embodiment 3:

[0046] The difference between the embodiment 2 is that, in addition to including the structural features of the preceding embodiments, in the specific embodiments of the present application, the fasteners 5 are selected from screws, bolts, blind rivets or nails, and the fasteners 5 fix the box shell 100 and the rubber frame body 1 while passing through the sewn rubber strip 2, thereby reinforcing the connection between the sewn rubber strip 2 and the rubber frame body 1.

[0047] If the fasteners 5 are self-tapping nails, holes do not need to be drilled in the box shell 100 and the edge strips 101, and the self-tapping nails can be directly tapped into the box shell 100 and the edge strips 101 to fix the box shell 100, the edge strips 101 and the sewn rubber strip 2.

[0048] If the fasteners 5 are bolts or blind rivets, holes need to be drilled in the box shell 100, the edge strips 101 and the sewn rubber strip 2 in advance, and then the bolts or the blind rivets are screwed into the holes or inserted into the holes and the blind rivets are extracted, thereby fixing the box shell 100, the edge strips 101 and the sewn rubber strip 2.

[0049] As shown in Figure 9 , when the fasteners 5 are nails, the sharp ends of the nails pass through the box shell 100 and the edge strips 101 in turn, and the ends are bent to make the fasteners 5 as a whole in the shape of a mouth, thereby fixing the box shell 100, the edge strips 101 and the sewn rubber strip 2.

[0050] Embodiment 4:

[0051] Different from the embodiment 3, in addition to comprising the structural features of the preceding embodiments, in the specific embodiments of the present application, the glue frame body 1 is detachably mounted with a shielding strip 9 on the outer side for shielding the outer end of the fastener 5.

[0052] In the specific embodiments of the present application, an installation groove 20 with an opening upward is arranged on the glue frame body 1, a strip-shaped edge 10 is arranged on the outer side, an outer ring groove 11 is arranged on the outer ring of the strip-shaped edge 10, a pair of clamping strips 12 are arranged in the installation groove 10 and the outer ring groove 11, a closed groove 13 is formed between the pair of clamping strips 12, a connecting strip 14 is arranged on the inner wall of the shielding strip 9, a V-shaped elastic plate 15 is arranged on the lower end of the sewing glue strip 2 and the end of the connecting strip 14 away from the shielding strip 9, and the width of the elastic plate 15 is greater than the width of the closed groove 13.

[0053] Due to the adoption of the above structure, as shown in Figure 3 and Figure 4 , after the corner pieces 102 and the edge strips 101 form the glue frame body 1, the connecting strips 14 on the sewing glue strip 2 and the shielding strip 9 are respectively inserted into the installation groove 20 and the outer ring groove 11, each elastic plate 15 will be elastically deformed when passing through each closed groove 13, and will restore the original length under the action of its own elastic force when entering the inner end of the installation groove 20 or the outer ring groove 11 through the closed groove 13, and will be clamped below the corresponding pair of clamping strips 12, that is, the bottom of the installation groove 20 and the outer ring groove 11, as shown in Figure 1 and Figure 3 , the glue frame body 1 with the sewing glue strip 2 and the shielding strip 9 installed is placed into the opening of the box shell 100, the edge of the box shell 100 is tightly abutted against the bottom surface of the strip-shaped edge 10, the inner wall is tightly abutted against the outer side walls of the corner pieces 102 and the edge strips 101, and then the fastener 5 is installed to fixedly connect the edge strips 101 and the side wall of the box shell 100, and at the same time, the fastener 5 passes through the sewing glue strip 2 to reinforce the connection between the sewing glue strip 2 and the edge strips 101.

[0054] The bottom of the sewing glue strip 2 of the prior art is T-shaped, and the existing glue frame body is provided with a T-shaped groove, and the sewing glue strip 2 is inserted into the existing glue frame body 1 in a pulling manner, and the sewing glue strip 2 of the present application only needs to be placed in the installation groove 20, and then pressed to be installed, compared with the prior art, the efficiency of installing the sewing glue strip 2 is improved, and the glue frame body 1 and the sewing glue strip 2 do not need to be pulled for assembly, and the assembly precision is improved.

[0055] Due to the V-shaped elastic plate 15, the two ends are inclined to the corresponding upper end of the sewing rubber strip 2 or the direction of the shielding strip 9. Such a shape makes the elastic plate 15 move through the closing slot 13 between the pair of clamping strips 12 to the inner end of the mounting slot 20 or the outer ring slot 11, and only a small amount of deformation is required to make the width of the two ends of the elastic plate 15 equal to the width of the closing slot 13, thereby reducing the resistance of the elastic plate 15 through the closing slot 13 into the bottom end of the mounting slot 20 or the outer ring slot 11. However, when pulling the sewing rubber strip 2 or the elastic plate 15 out of the mounting slot 20 or the outer ring slot 11, the elastic plate 15 needs to be deformed into a straight shape and then deformed and bent at the two ends to the bottom end of the mounting slot 20 or the outer ring slot 11, so that the width of the two ends of the elastic plate 15 is equal to the width of the closing slot 13 between the pair of clamping strips 12, thereby increasing the resistance of the elastic plate 15 when it is separated from the mounting slot 20 or the outer ring slot 11. In short, it is convenient to install and not easy to fall off.

[0056] After the sewing rubber strip 2 is inserted into the mounting slot 20, the pair of clamping strips 16 contacts the two sides of the overlapping connection position of the zipper 3 and the sewing rubber strip 2, thereby improving the stability of the sewing rubber strip 2 in the mounting slot 20.

[0057] The top end of the sewing rubber strip 2 is fixed to the zipper 3 by a sewing, ultrasonic welding or hot pressing connection.

[0058] Embodiment 5:

[0059] The difference between embodiment 4 and embodiment 5 is that in addition to the structural features of the preceding embodiments, in the specific embodiments of the present application, as shown in Figure 4 and 5 The corner piece 102 includes a connecting head 121, and the two ends of the connecting head 121 are inserted and installed with the adjacent edge strip 101 through the insertion structure.

[0060] In the specific embodiments of the present application, the insertion structure includes an insertion block 122 or an insertion opening 123, and the end of the edge strip 101 is provided with an insertion opening 123 or an insertion block 122. When the insertion block 122 and the insertion opening 123 are inserted with each other, the connecting head 121 and the edge strip 101 can be fixed with each other. A plurality of corner pieces 102 and a plurality of edge strips 101 are connected end to end in this way to form a rubber frame main body 1. The outer contour of the rubber frame main body 1 is the same as the contour of the inner wall of the open side of the box shell 100. After the rubber frame main body 1 is inserted into the inside of the open side of the box shell 100, the fastener 5 is used to fix the rubber frame main body 1.

[0061] With the above structure, the corner piece 102 of the present application is equivalent to a standard part, which is applicable to the corners of box shells 100 of different sizes. The corner piece 102 is mass-produced by means of mold injection, while the edge strip 101 is uniformly extruded by an extruder, and then a plurality of edge strips 101 (usually two long and two short, i.e., two) are cut to the appropriate length according to the requirements. Then, a number of corner pieces 102 (usually four) corresponding to the number of corners of the box shell 100 are taken, and the corner pieces 102 and the edge strips 101 are connected end to end and connected to each other by means of the insertion of the insertion block 122 and the insertion hole 123 to form the glue frame body 1. The glue frame body 1 is sleeved to the inside of the open end of the box shell 100, the sewing rubber strip 2 is installed in the glue frame body 1, and then a plurality of fasteners 5 are punched into the edge strips 101 from the outside of the box shell 100 to the inside, so as to fix the box shell 100 on the box shell 100 and at the same time conveniently reinforce the fixation of the sewing rubber strip 2 and the glue frame body 1.

[0062] As shown in Figure 5 When the insertion block 122 is arranged at the end of the connecting head 121 and the insertion hole 123 is arranged at the end of the edge strip 101, since the edge strip 101 is continuously extruded, the insertion hole 123 is formed in the edge strip 101 from the time of extrusion, and no other treatment is required for the edge strip 101 when the edge strip 101 is cut. The insertion hole 123 is directly exposed to the outside and directly used for insertion and cooperation with the insertion block 122.

[0063] It should be noted that the corner piece 102 and the edge strip 101 of the present application are connected to each other by means of the insertion of the insertion block 122 and the insertion hole 123. The insertion block 122 and the insertion hole 123 have a certain range of coincidence. Therefore, even if the length of the cut edge strip 101 is slightly shorter, the connection stability of the corner piece 102 and the edge strip 101 is not affected. In the prior art, if the edge strip 101 is cut too short, the interface after the hot bending cannot be connected. Compared with the prior art, the fault tolerance of the present application during installation is improved. When the glue frame body 1 composed of a plurality of edge strips 101 and corner pieces 102 is placed in the open end of the box shell 100, the outer sides of the corner pieces 102 and the edge strips 101 abut against the inner walls of the four sides of the box shell 100, and the corners and the edge strips 101 cannot move outward, so as to ensure that the insertion block 122 does not come off the insertion hole 123, and the main structure of the glue frame body 1 is stable.

[0064] Embodiment 6:

[0065] The difference between the embodiment 5 and the embodiment 6 is that the insertion block 122 can also be arranged at the end of the edge strip 101, and the insertion hole 123 is arranged at the end of the insertion block 122 (not shown in the drawings) at this time.

[0066] Due to the above structure, when assembling the rubber frame body 1, since the edge strip 101 is continuously extruded, there is no insertion hole 123 inside the edge strip 101 from the time of extrusion, and when cutting off the edge strip 101, the two ends of the edge strip 101 need to be cut to obtain the insertion block 122, and then the insertion block 122 is inserted and matched with the insertion hole 123 arranged on the connecting head 121, so as to form the rubber frame body 1, and then the rubber frame body 1 is inserted into the open side of the box shell 100, and a bolt is penetrated into the box shell 100 and the rubber frame body 1 from the outside to the inside, thereby completing the mutual fixation of the rubber frame body 1 and the box shell 100.

[0067] Embodiment 7:

[0068] The difference from embodiment 5 is that, in addition to the structural features of the preceding embodiments, in the specific embodiments of the present application, the inner side bottom of each of the edge strips 101 and each of the corner pieces 102 is provided with a first rib 82, and adjacent first ribs 82 are connected by a positioning piece 19 provided with a positioning groove 18.

[0069] In the specific embodiments of the present application, as shown in Figure 6 and 7 The positioning piece 19 is in the shape of a U, and forms a positioning groove 18 inside, and the inner side bottom of each of the edge strips 101 and each of the corner pieces 102 is further provided with a second rib 17, the upper end of the positioning piece 19 is inserted between the second rib 17 and the first rib 82, the upper end of the positioning piece 19 extends into the space between the second rib 17 and the first rib 82, and the lower end abuts against the bottom surface of the lower end of the corner piece 102 and the edge strip 101.

[0070] Due to the above structure, after the corner pieces 102 and the edge strips 101 are connected to each other, a plurality of positioning pieces 19 are installed between adjacent corner pieces 102 and edge strips 101, the second rib 17 is inserted into the positioning groove 18, the top end of the positioning piece 19 is inserted into the groove formed between the second rib 17 and the first rib 82, and the positioning piece 19 is in the shape of a pull handle and is inserted in an interference fit, thereby positioning the connection positions of the corner pieces 102 and the edge strips 101, and ensuring that the joints of the edge strips 101 and the corner pieces 102 are smooth.

[0071] Embodiment 8:

[0072] The difference from embodiment 7 is that, in addition to the structural features of the preceding embodiments, in the specific embodiments of the present application, a clamping groove 6 is further arranged on the inner side of the bottom of the rubber frame body 1, a frame strip 7 is arranged on the periphery of the inner liner 4, the frame strip 7 is detachably installed at the clamping groove 6 through a disassembly assembly 8, the disassembly assembly 8 includes a clamping piece 81, a first rib 82, and a stop block 83, the first rib 82 is fixedly arranged on the bottom of the rubber frame body 1, the clamping piece 81 is clamped with the first rib 82, and the stop block 83 is inserted into the clamping groove 6 and is fixedly connected with the clamping piece 81.

[0073] When the inner lining 4 is disassembled, the inner lining zipper at the bottom of the inner lining 4 is pulled open, the hand is inserted between the inner lining 4 and the box shell 100, the buckle 81 is disassembled one by one, the stop block 83 is separated from the clamping groove 6, the restriction on the frame strip 7 is released, the frame strip 7 can be separated from the clamping groove 6, and the inner lining 4 is taken out from the box shell 100 together.

[0074] When the inner lining 4 is installed, the frame strip 7 is clamped into the clamping groove 6, and then the stop block 83 is inserted into the clamping groove 6 and fixed with the rib 82 through the buckle 81, so that the frame strip 7 is located between the end of the clamping groove 6 and the stop block 83, and the peripheral wall of the inner lining 4 extends from the gap between the stop block 83 and the clamping groove 6. The gap is smaller than the cross-sectional diameter of the frame strip 7, so that the frame strip 7 cannot move away from the rubber frame body 1 without disassembling the buckle 81, and then the inner lining zipper at the bottom of the inner lining 4 is closed, and the installation of the inner lining 4 is completed.

[0075] The inner lining 4 is made of flexible material (chemical fiber, natural fiber, artificial leather, synthetic leather, non-woven fabric, and velvet), and the frame strip 7 is fixed at the four peripheral edges of the inner lining 4 by sewing or pasting.

[0076] As shown in Figure 2 , the rubber frame body 1 is adapted to the shape of the opening side of the box shell 100 during actual assembly. In this application, the assembly effect is quadrangular, the rib 82 and the clamping groove 6 are quadrangular, and the frame strip 7 is also quadrangular. During installation or disassembly of the frame strip 7, the rubber frame body 1 can be elastically deformed to make the frame strip 7 enter and exit the clamping groove 6, and be pre-fixed when entering the clamping groove 6. The user can clamp the buckle 81 on the rib 82 one by one, which is convenient for operation during actual use.

[0077] Embodiment 9:

[0078] The difference between embodiment 8 and embodiment 9 is that, as shown in Figure 3 , the buckle 81 includes a lower plate 811 and a vertical plate 812 connected with each other, one end of the lower plate 811 is fixedly connected with the stop block 83, the vertical plate 812 and the lower plate 811 form a slot 813 with the stop block 83, the upper end of the vertical plate 812 is provided with a buckle 814 extending into the slot 813, the rib 82 is inserted into the slot 813 and fixed by clamping the buckle 814 and the clamping block 815, and the buckle 81 further includes a pressing plate 816 fixedly arranged at the other end of the vertical plate 812. The buckle 814 and the clamping block 815 are triangular, the buckle 814 is inclined toward the side wall of the rubber frame body 1, and the clamping block 815 is inclined away from the side wall of the rubber frame body 1.

[0079] When installing, the buckle 81 is used to clamp the frame strip 7 into the clamping groove 6, then the slot 813 of the buckle 81 is aligned with the rib 82, and then the buckle 81 is pressed towards the direction of the frame body 1, the inclined surface of the buckle 814 is matched with the inclined surface on the clamping block 815, the upright plate 812 is deformed and bent outwards from the slot 813, until the buckle 814 is moved to between the clamping block 815 and the frame body 1, the upright plate 812 is restored under the action of its own elastic force, the buckle 814 and the clamping block 815 are buckled with each other, and the installation of the inner lining 4 is completed.

[0080] When disassembling the buckle 81, the distal end of the pressing plate 816 is pulled away from the frame body 1, the upright plate 812 is deformed, the buckle 814 is separated from the clamping block 815, the fixing between the slot 813 and the rib 82 is released, the buckle 81 can be moved together with the stop block 83 away from the frame body 1 until the frame body 1 is separated from the slot 813, the frame strip 7 and the inner lining 4 can be separated from the box shell 100.

[0081] Embodiment 10:

[0082] The application also discloses a manufacturing method of the main frame, which is suitable for the combined main frame of the box.

[0083] S1, extruding the long strip of the edge strip 101 through an extruder;

[0084] S2, manufacturing the corner piece 102 through an injection molding machine and an injection molding die;

[0085] S3, cutting the long strip of the edge strip 101 to obtain a plurality of edge strips 101 suitable for the length of the four edges of the box, taking a suitable number of corner pieces 102, and fixing the two ends of each corner piece 102 and the end of each edge strip 101 to each other to form the main frame.

[0086] In step S3, each corner piece 102 and each edge strip 101 are fixed to each other through insertion, glue or ultrasonic welding.

[0087] In the embodiment of the application, the rubber material is put into the hopper of the extruder, is heated and pressurized through the screw to become a molten state, is extruded to form a long strip of the edge strip 101 with a predetermined shape, is rapidly cooled to fix the shape through a water tank or an air cooling device, and is uniformly pulled by a traction machine to be wound, and when cutting is needed, the long strip of the edge strip 101 is put out and cut.

[0088] The movable mold and the fixed mold of the injection mold are closed, the mold locking mechanism applies high pressure to prevent the mold from expanding, the screw injection molding machine injects molten plastic into the mold cavity at high pressure and high speed, continuously applies pressure, compensates for the shrinkage of the plastic as it cools, avoids surface depression, reduces the temperature of the plastic part to solidification through the mold temperature control system (such as water cooling), and then the mold is opened. The ejection system pushes the plastic part out, while the sprue waste is cut off, and the corner piece 102 is obtained.

[0089] The connection between each edge strip 101 and the corresponding corner piece 102 has the following ways:

[0090] 1. Each edge strip 101 and the end face of the adjacent corner piece 102 are inserted into each other through an insertion structure to form the main body 1 of the rubber frame, and then installed into the box shell 100.

[0091] 2. Each edge strip 101 and the end face of the adjacent corner piece 102 are glued to form the main body 1 of the rubber frame, and then installed into the box shell 100.

[0092] 3. Each edge strip 101 and the end face of the adjacent corner piece 102 are pasted and then welded by ultrasonic waves to form the main body 1 of the rubber frame, and then installed into the box shell 100.

[0093] In the existing process, in order to realize the bending and shaping of the main rubber strip, a hot bending device with high precision and capable of multi-segment bending is configured. In the existing process, the device is dedicated to the bending operation of the main rubber strip, but the purchase of the device requires hundreds of thousands of yuan. The scheme adopted by the present application does not need to configure corresponding hot bending molds according to different sizes of the box shell 100. Only the original injection molding machine and injection mold of the factory are used to manufacture the corner piece 101, and the original injection molding machine is used to mass-produce the standard part of the corner piece 102, which improves the manufacturing efficiency of the main body 1 of the rubber frame, reduces the manufacturing cost, and improves the economic benefit.

[0094] It should be noted that, in the present document, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element. Furthermore, it is to be understood that the method and apparatus of the present application can be carried out by someone other than the person named in the independent claims, and that the scope of the independent claims is not limited to the person named in the independent claims. In addition, it should be noted that the scope of the method and apparatus of the present application is not limited to performing the functions in the order shown or discussed, but can also include performing the functions in a substantially simultaneous manner or in a reverse order, for example, the described method can be performed in an order different from that described, and various steps can be added, omitted, or combined. In addition, features described with reference to certain examples can be combined in other examples.

[0095] The embodiments of the present application are described above with reference to the accompanying drawings, but the present application is not limited to the specific embodiments described above, which are merely illustrative and not restrictive, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims.

Claims

1. A modular main frame for a box, comprising a frame body, sewing tape, a zipper, and a lining, characterized in that, The main body of the adhesive frame includes several side strips and several corner pieces. Adjacent side strips are connected by corner pieces. The top of the main body of the adhesive frame is provided with an installation groove, and the lower end of the sewn adhesive strip is inserted and fixed from the top of the installation groove.

2. The combined main frame for a frame box according to claim 1, characterized in that, It also includes several fasteners for fixing the frame body to the box shell and for reinforcing the connection between the sewing tape and the frame body.

3. A combined main frame for a frame box according to claim 2, characterized in that, A shielding strip is detachably installed on the outer side of the frame body to cover the outer end of the fastener.

4. A combined main frame for a frame box according to any one of claims 1-3, characterized in that, The corner piece includes a connector, the two ends of which are connected to the adjacent edge strip via a plug-in structure.

5. A combined main rubber frame for a frame box according to any one of claims 1-3, characterized in that, Each of the aforementioned edge strips and corner pieces has a reinforcing rib on its inner bottom, and adjacent reinforcing ribs are connected by a positioning piece with a positioning groove.

6. A combined main frame for a frame box according to claim 5, characterized in that, The positioning component is U-shaped with a positioning groove inside. The inner bottom of each edge strip and corner piece is also provided with a second rib. The upper end of the positioning component is inserted between the second rib and the first rib. The upper end of the positioning component extends between the second rib and the first rib, and the lower end abuts against the bottom surface of the corner piece and the lower end of the edge strip.

7. A combined main frame for a frame box according to claim 1, characterized in that, It also includes a slot located on the inner side of the bottom of the frame body, and a frame strip is provided around the lining. The frame strip can be detachably installed in the slot via a disassembly assembly.

8. A combined main frame for a frame box according to claim 7, characterized in that, It also includes a fastener, a reinforcing rib, and a stop block. The reinforcing rib is fixed to the bottom of the frame body. The fastener is engaged with the reinforcing rib. The stop block is inserted into the slot and is fixed to the fastener. The fastener includes a lower plate and a vertical plate that are connected to each other. One end of the lower plate is fixed to the stop block. A slot is formed between the vertical plate, the lower plate, and the stop block. The upper end of the vertical plate is provided with a buckle that extends into the slot. The reinforcing rib is inserted into the slot and fixed by the engagement of the buckle and the stop block.

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