A production apparatus and method of a multilayer composite molded high-barrier foam case

Abstract

The application relates to the technical field of foam box production, and discloses a production equipment and method of a multilayer composite high-barrier foam box, which solves the problem that it is difficult to adjust the pre-pressure degree of the whole layer of plate according to requirements, and the production equipment comprises a base, a U-shaped frame is fixedly installed at the top of the base, a limiting mechanism is arranged on the U-shaped frame, a lower pressing roller is rotationally connected to the inner side of the U-shaped frame, an upper pressing roller is arranged directly above the lower pressing roller, a pre-pressure degree adjusting mechanism is arranged on the upper pressing roller, the pre-pressure degree adjusting mechanism comprises a lifting plate located on the inner side of the base, an L-shaped plate is fixedly connected to the top of the lifting plate, two supporting columns are symmetrically and fixedly connected between the L-shaped plate and the lifting plate, and a sliding block is movably sleeved with the outer side of each supporting column; the adjusting motor is started to drive the adjusting column to lift, the compression amount of the spring is controlled, the pre-pressure degree of the whole layer of plate can be adjusted according to requirements, and the like.

Description

Technical Field

[0001] This invention belongs to the field of foam box production technology, specifically a production equipment and method for a multi-layer composite molded high-barrier foam box. Background Technology

[0002] High-barrier foam boxes are packaging and storage boxes with excellent gas barrier, moisture barrier, and seepage prevention properties. They can effectively prevent water vapor and air penetration, delay the deterioration of goods, and are widely used in fresh food cold chain and food preservation. To improve the overall performance of foam boxes, the industry generally adopts a multi-layer composite molding process to prepare high-barrier foam boxes. A foamed insulation layer, a high-barrier sealing layer, and a protective surface layer are set in sequence. The interlayer bonding is achieved by uniformly coating the bonding surfaces of each layer of materials with composite adhesive. After the multiple layers of materials are stacked into a whole board, they are sent to a pre-compression mechanism for preliminary compaction, and then pressed into shape by a constant temperature hot-pressing molding process, finally obtaining a high-barrier foam box with an integrated cavity structure.

[0003] In the current technology, the pre-compression operation of multi-layer composite boards mostly adopts a pressing roller group structure with fixed opening and fixed load. It is impossible to adjust the pre-compression pressure according to the differences in foam board thickness, material hardness, and number of composite layers. Excessive pressure can easily cause the foam substrate to be squeezed and collapsed, and the material to be deformed and damaged. Insufficient pressure makes it difficult to expel air between layers, which can easily lead to loose bonding, bulging and delamination. The overall pre-compression uniformity is poor and the adaptability is weak, which seriously affects the quality of subsequent hot pressing and the multi-layer composite stability of the finished foam box. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a production equipment and method for multi-layer composite molding high-barrier foam boxes, which effectively solves the problem that it is currently difficult to adjust the pre-pressure of the entire layer of board according to the needs.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a production equipment for a multi-layer composite molded high-barrier foam box, comprising a base, a U-shaped frame fixedly installed on the top of the base, a limiting mechanism provided on the U-shaped frame, a lower pressure roller rotatably connected to the inner side of the U-shaped frame, an upper pressure roller provided directly above the lower pressure roller, and a preload adjustment mechanism provided on the upper pressure roller.

[0006] The preload adjustment mechanism includes a lifting plate located inside the base. An L-shaped plate is fixedly connected to the top of the lifting plate. Two support columns are symmetrically fixedly connected between the L-shaped plate and the lifting plate. Slider blocks are movably sleeved on the outer sides of the two support columns. Springs are fixedly connected between the top of the two sliders and the L-shaped plate. The two springs are respectively sleeved on the outer sides of the two support columns. Top rods are fixedly connected to the bottom of the two sliders. A mounting frame is fixedly connected between the bottom ends of the two top rods. The two top rods pass through the lifting plate and are movably connected to the lifting plate. The upper pressure roller is rotatably connected to the inner side of the mounting frame. An adjustment column is provided on the lifting plate, and the adjustment column is located above the mounting frame.

[0007] Preferably, the U-shaped frame has side grooves on both sides, and columns are fixedly connected to the inner sides of the two side grooves. The lifting plate is movably sleeved on the outer side of the two columns.

[0008] Preferably, the inner side of the L-shaped plate is provided with two symmetrical sliding grooves, and a sliding plate is slidably connected between the two sliding grooves. The adjusting column is fixed to the bottom of the sliding plate and passes through the lifting plate and is movably connected to the lifting plate.

[0009] Preferably, an adjusting motor is fixedly installed on the inner side of the L-shaped plate, a side plate is fixedly connected to the adjusting motor, a movable rod is rotatably connected to the outer side of the side plate, and the bottom end of the movable rod is rotatably connected to the outer side of the slide plate.

[0010] Preferably, an electric push rod is fixedly installed on the inner side of the U-shaped frame, and the top of the L-shaped plate is fixed to the output end of the electric push rod.

[0011] Preferably, the limiting mechanism includes two guide rods symmetrically fixed to the outside of the U-shaped frame, two guide plates symmetrically and movably sleeved between the two guide rods, and rotating shafts rotatably connected to the top sides of the two guide plates. A placement plate is fixedly connected to the top of each rotating shaft, and a dust removal cylinder is provided on the top of each placement plate.

[0012] Preferably, a support base is fixedly installed on the outer side of the U-shaped frame, a drive motor is fixedly installed on the support base, a drive shaft is fixedly installed on the drive motor, the end of the drive shaft away from the drive motor extends into the U-shaped frame and is fixedly connected to a bidirectional lead screw, the end of the bidirectional lead screw away from the drive shaft is fixedly connected to a support shaft, the support shaft is rotatably connected to the U-shaped frame, and two nuts are symmetrically threaded on the outer side of the bidirectional lead screw, and two guide plates are respectively fixed to the bottom of the two nuts.

[0013] Preferably, the bottom end of the dust collector is symmetrically fixedly connected with two positioning rods, and the placement plate is symmetrically provided with two positioning holes, with the two positioning rods passing through the two positioning holes respectively.

[0014] Preferably, a screw is fixedly connected to the top of the placement tray, the dust collector is located outside the screw and does not contact the screw, a screw cylinder located at the top of the dust collector is threaded onto the outside of the screw, and a handwheel is fixedly connected to the top of the screw cylinder.

[0015] A method for producing a multi-layer composite high-barrier foam box includes the following steps:

[0016] Step 1: First, start the electric push rod to drive the lifting plate downward, and drive the mounting frame and the upper pressure roller to descend. When the upper pressure roller contacts the whole layer of board placed on the lower pressure roller, continue to lower the lifting plate until the mounting frame abuts against the adjusting column and the spring is deformed. At this time, the preload on the whole layer of board is the spring force.

[0017] Step 2: Then start the adjustment motor to drive the adjustment column to rise and fall to control the deformation of the spring, and finally adjust the preload on the entire layer of board.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. In this invention, by activating the electric push rod, the lifting plate can be driven to slide downward along the two columns, which facilitates the upper pressure roller to descend and approach the lower pressure roller to pre-press the entire layer of the board. When the lifting plate descends and the mounting frame abuts against the adjusting column, it is easy to compress the two springs. The pre-pressure of the upper pressure roller on the entire layer of the board is the elastic force of the spring. By activating the adjusting motor, the adjusting column can be driven to rise and fall, which is convenient to control the amount of spring compression, thereby making it easy to adjust the pre-pressure of the entire layer of the board according to the needs.

[0020] 2. This invention enables the two guide plates to slide along the two guide rods by starting the drive motor, which facilitates the two sets of dust collectors on the left and right to move closer to each other and limit the entire layer of the board, thus preventing the entire layer of the board from shifting. At the same time, it facilitates the dust removal treatment of the sides of the entire layer of the board.

[0021] 3. This invention fixes the dust collector to the bottom of the placement tray by sleeve of the dust collector sleeve on the outside of the screw and tightening the screw sleeve, and the dust collector can be disassembled by loosening the screw sleeve, thus facilitating the replacement of the dust collector. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0023] In the attached diagram:

[0024] Figure 1 This is a schematic diagram of the production equipment structure for the multi-layer composite high-barrier foam box of the present invention.

[0025] Figure 2This is a schematic diagram of the preload adjustment mechanism of the present invention;

[0026] Figure 3 This is a schematic diagram of the L-shaped plate structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the limiting mechanism structure of the present invention;

[0028] Figure 5 This is a schematic diagram of the dust collector cylinder structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the disk placement structure of the present invention.

[0030] In the diagram: 1. Base; 2. Preload adjustment mechanism; 201. Lifting plate; 202. Column; 203. Mounting frame; 204. Top rod; 205. L-shaped plate; 206. Electric push rod; 207. Spring; 208. Slider; 209. Side plate; 2010. Movable rod; 2011. Adjusting column; 2012. Slide plate; 2013. Support column; 2014. Slide groove; 2015. Adjusting motor; 3. Limiting mechanism; 301. 302. Guide rod; 303. Nut; 304. Dust collector; 305. Guide plate; 306. Drive shaft; 307. Drive motor; 308. Support base; 309. Double-acting lead screw; 3010. Support shaft; 3011. Handwheel; 3012. Screw barrel; 3013. Placement tray; 3014. Rotating shaft; 3015. Positioning rod; 3016. Positioning hole; 3017. Screw; 4. Upper pressure roller; 5. Lower pressure roller; 6. U-shaped frame; 7. Side groove. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] Example 1, by Figures 1-6 The present invention relates to a production equipment and method for a multi-layer composite high-barrier foam box, comprising a production equipment for a multi-layer composite high-barrier foam box, including a base 1, a U-shaped frame 6 fixedly installed on the top of the base 1, a limiting mechanism 3 provided on the U-shaped frame 6, a lower pressure roller 5 rotatably connected to the inner side of the U-shaped frame 6, an upper pressure roller 4 provided directly above the lower pressure roller 5, and a pre-pressure adjustment mechanism 2 provided on the upper pressure roller 4.

[0033] In Example 2, based on Example 1, the preload adjustment mechanism 2 includes a lifting plate 201 located inside the base 1. An L-shaped plate 205 is fixedly connected to the top of the lifting plate 201. Two support columns 2013 are symmetrically fixedly connected between the L-shaped plate 205 and the lifting plate 201. Slider blocks 208 are movably sleeved on the outer sides of each of the two support columns 2013. Springs 207 are fixedly connected between the tops of the two sliders 208 and the L-shaped plate 205. The two springs 207 are respectively sleeved on the outer sides of the two support columns 2013. Top rods 204 are fixedly connected to the bottoms of the two sliders 208. A mounting frame 203 is fixedly connected between the bottom ends of the two top rods 204. Both top rods 204 penetrate the lifting plate 201 and are movably connected to it. An upper pressure roller 4 is rotatably connected to the inner side of the mounting frame 203. An adjustment column 2011 is provided on the lifting plate 201. Above the mounting frame 203, the U-shaped frame 6 has side grooves 7 on both sides. The inner sides of the two side grooves 7 are fixedly connected to columns 202. The lifting plate 201 is movably sleeved on the outer side of the two columns 202. The inner side of the L-shaped plate 205 has two symmetrical sliding grooves 2014. The sliding plate 2012 is slidably connected between the two sliding grooves 2014. The adjusting column 2011 is fixed to the bottom of the sliding plate 2012. The adjusting column 2011 passes through the lifting plate 201 and is movably connected to the lifting plate 201. The inner side of the L-shaped plate 205 is fixedly installed with an adjusting motor 2015. The adjusting motor 2015 is fixedly connected with a side plate 209. The outer side of the side plate 209 is rotatably connected with a movable rod 2010. The bottom end of the movable rod 2010 is rotatably connected to the outer side of the sliding plate 2012. The inner side of the U-shaped frame 6 is fixedly installed with an electric push rod 206. The top of the L-shaped plate 205 is fixed to the output end of the electric push rod 206.

[0034] First, start the electric push rod 206. The L-shaped plate 205 drives the lifting plate 201 to slide down along the two columns 202, and drives the mounting frame 203 and the upper pressure roller 4 to descend. When the upper pressure roller 4 comes into contact with the whole layer of board placed on the lower pressure roller 5, the lifting plate 201 continues to slide down. At this time, the distance between the mounting frame 203 and the lifting plate 201 decreases, which drives the two sliders 208 to slide along the two support columns 2013 respectively. At this time, both springs 207 are compressed until the mounting frame 203 comes into contact with the adjusting column 2011. At this time, the preload of the upper pressure roller 4 on the whole layer of board is the elastic force of the spring 207.

[0035] When the adjusting motor 2015 is started, it drives the side plate 209 to rotate. The movable rod 2010 drives the slide plate 2012 to slide along the two slide grooves 2014, and drives the adjusting column 2011 to rise and fall. This adjusts the height of the adjusting column 2011 to control the compression of the spring 207. Finally, the preload on the entire layer of the board is adjusted according to the requirements.

[0036] In Example 3, based on Example 1, the limiting mechanism 3 includes two guide rods 301 symmetrically fixed to the outside of the U-shaped frame 6. Two guide plates 304 are symmetrically and movably sleeved between the two guide rods 301. Rotary shafts 3013 are rotatably connected to the top sides of both guide plates 304. A placement tray 3012 is fixedly connected to the top of each rotating shaft 3013. A dust collector 303 is provided on the top of each placement tray 3012. The outer surface of the dust collector 303 is covered with an adhesive layer for dust removal. A support is fixedly installed on the outside of the U-shaped frame 6. A drive motor 306 is fixedly mounted on a base 307. A drive shaft 305 is fixedly mounted on the drive motor 306. The end of the drive shaft 305 away from the drive motor 306 extends into the U-shaped frame 6 and is fixedly connected to a bidirectional lead screw 308. The end of the bidirectional lead screw 308 away from the drive shaft 305 is fixedly connected to a support shaft 309. The support shaft 309 is rotatably connected into the U-shaped frame 6. Two nuts 302 are symmetrically threaded on the outer side of the bidirectional lead screw 308. Two guide plates 304 are fixed to the bottom of the two nuts 302 respectively.

[0037] First, start the drive motor 306 to drive the drive shaft 305 to rotate, which in turn drives the bidirectional lead screw 308 to rotate. Through the two lead screw nuts 302, the two guide plates 304 slide along the two guide rods 301 respectively. At the same time, the two sets of dust collectors 303 move closer to each other to limit the entire layer of the board and prevent it from shifting. Meanwhile, the dust collectors 303 contact the side of the entire layer of the board to remove dust.

[0038] In Example 4, based on Example 1, two positioning rods 3014 are symmetrically fixedly connected to the bottom end of the dust collector 303, and two positioning holes 3015 are symmetrically provided on the placement tray 3012. The two positioning rods 3014 pass through the two positioning holes 3015 respectively. A screw 3016 is fixedly connected to the top of the placement tray 3012. The dust collector 303 is located outside the screw 3016 and does not contact the screw 3016. A screw cylinder 3011 located at the top of the dust collector 303 is threaded onto the outside of the screw 3016. A handwheel 3010 is fixedly connected to the top of the screw cylinder 3011.

[0039] First, place the dust collector 303 on the outside of the screw 3016 and on top of the placement plate 3012, so that the two positioning rods 3014 pass through the two positioning holes 3015 respectively. Then, place the screw cylinder 3011 on the outside of the screw 3016 and rotate the handwheel 3010 clockwise to drive the screw cylinder 3011 to rotate and descend on the outside of the screw 3016 until the screw cylinder 3011 abuts against the dust collector 303, thus fixing the dust collector 303. When the screw cylinder 3011 is loosened and removed from the outside of the screw 3016, the dust collector 303 can be disassembled, and finally the replacement of the dust collector 303 is completed.

Claims

1. A production equipment for a multi-layer composite molded high-barrier foam box, comprising a base (1), characterized in that: A U-shaped frame (6) is fixedly installed on the top of the base (1). A limiting mechanism (3) is provided on the U-shaped frame (6). A lower pressure roller (5) is rotatably connected to the inner side of the U-shaped frame (6). An upper pressure roller (4) is provided directly above the lower pressure roller (5). A preload pressure adjustment mechanism (2) is provided on the upper pressure roller (4). The preload adjustment mechanism (2) includes a lifting plate (201) located inside the base (1). An L-shaped plate (205) is fixedly connected to the top of the lifting plate (201). Two support columns (2013) are symmetrically fixedly connected between the L-shaped plate (205) and the lifting plate (201). A slider (208) is movably sleeved on the outer side of each of the two support columns (2013). A spring (207) is fixedly connected between the top of each slider (208) and the L-shaped plate (205). The two springs (207) are respectively sleeved on... Located on the outside of two support columns (2013), the bottom of each of the two sliders (208) is fixedly connected to a top rod (204), and the bottom of the two top rods (204) is fixedly connected to an installation frame (203). The two top rods (204) pass through the lifting plate (201) and are movably connected to the lifting plate (201). The upper pressure roller (4) is rotatably connected to the inside of the installation frame (203). The lifting plate (201) is provided with an adjustment column (2011), which is located above the installation frame (203).

2. The production equipment for a multi-layer composite molded high-barrier foam box according to claim 1, characterized in that: The U-shaped frame (6) has side grooves (7) on both sides, and the inner sides of the two side grooves (7) are fixedly connected to columns (202). The lifting plate (201) is movably sleeved on the outer side of the two columns (202).

3. The production equipment for a multi-layer composite molded high-barrier foam box according to claim 1, characterized in that: The inner side of the L-shaped plate (205) is symmetrically provided with two sliding grooves (2014), and a sliding plate (2012) is slidably connected between the two sliding grooves (2014). An adjusting column (2011) is fixed to the bottom of the sliding plate (2012), and the adjusting column (2011) passes through the lifting plate (201) and is movably connected to the lifting plate (201).

4. The production equipment for a multi-layer composite molded high-barrier foam box according to claim 1, characterized in that: An adjusting motor (2015) is fixedly installed on the inner side of the L-shaped plate (205). A side plate (209) is fixedly connected to the adjusting motor (2015). A movable rod (2010) is rotatably connected to the outer side of the side plate (209). The bottom end of the movable rod (2010) is rotatably connected to the outer side of the slide plate (2012).

5. The production equipment for a multi-layer composite molded high-barrier foam box according to claim 1, characterized in that: An electric push rod (206) is fixedly installed on the inner side of the U-shaped frame (6), and the top of the L-shaped plate (205) is fixed to the output end of the electric push rod (206).

6. The production equipment for a multi-layer composite molded high-barrier foam box according to claim 1, characterized in that: The limiting mechanism (3) includes two guide rods (301) symmetrically fixed to the outside of the U-shaped frame (6). Two guide plates (304) are symmetrically and movably sleeved between the two guide rods (301). Rotary shafts (3013) are rotatably connected to the top sides of the two guide plates (304). A placement plate (3012) is fixedly connected to the top of each rotating shaft (3013). A dust removal cylinder (303) is provided on the top of each placement plate (3012).

7. The production equipment for a multi-layer composite molded high-barrier foam box according to claim 1, characterized in that: A support base (307) is fixedly installed on the outside of the U-shaped frame (6). A drive motor (306) is fixedly installed on the support base (307). A drive shaft (305) is fixedly installed on the drive motor (306). One end of the drive shaft (305) away from the drive motor (306) extends into the U-shaped frame (6) and is fixedly connected to a two-way lead screw (308). One end of the two-way lead screw (308) away from the drive shaft (305) is fixedly connected to a support shaft (309). The support shaft (309) is rotatably connected to the U-shaped frame (6). Two nuts (302) are symmetrically threaded on the outside of the two-way lead screw (308). Two guide plates (304) are fixed to the bottom of the two nuts (302) respectively.

8. The production equipment for a multi-layer composite molded high-barrier foam box according to claim 6, characterized in that: The bottom end of the dust collector (303) is symmetrically fixed with two positioning rods (3014), and the placement plate (3012) is symmetrically provided with two positioning holes (3015), and the two positioning rods (3014) pass through the two positioning holes (3015) respectively.

9. The production equipment for a multi-layer composite molded high-barrier foam box according to claim 6, characterized in that: The top of the placement tray (3012) is fixedly connected to a screw (3016), and the dust collector (303) is located outside the screw (3016) and does not contact the screw (3016). The screw (3016) is threadedly connected to a screw cylinder (3011) located at the top of the dust collector (303), and a handwheel (3010) is fixedly connected to the top of the screw cylinder (3011).

10. A method for producing a high-barrier foam box as described in any one of claims 1-9, characterized in that, Includes the following steps: Step 1: First, start the electric push rod (206) to drive the lifting plate (201) to move downward, and drive the mounting frame (203) and the upper pressure roller (4) to descend. When the upper pressure roller (4) contacts the whole layer of board placed on the lower pressure roller (5), continue to make the lifting plate (201) descend until the mounting frame (203) abuts against the adjusting column (2011) and the spring (207) deforms. At this time, the preload on the whole layer of board is the elastic force of the spring (207). Step 2: Then start the adjustment motor (2015) to drive the adjustment column (2011) to rise and fall to control the deformation of the spring (207), and finally adjust the preload on the entire layer of board.

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