A kind of foam plastic box production process

Abstract

The invention relates to the technical field of foamed plastic boxes, and more specifically to a foamed plastic box production process, which comprises the following steps: step one, mixing raw materials and adding them to a first-stage extruder, and then processing them through a filter screen converter; step two, placing the materials in step one into a second-stage extruder, and then processing them through a cooling, shaping and unfolding device; step three, traction processing is performed on the materials in step two, and then processing is performed through a double-axis winding process to complete the production of a foamed plastic box semi-finished product; step four, passing the foamed plastic box semi-finished product through a printing device, and printing a trademark and a name on the foamed plastic box semi-finished product; step five, completing the production of the foamed plastic box.

Description

Technical Field

[0001] The invention relates to the technical field of foamed plastic boxes, in particular to a production process of foamed plastic boxes. Background Art

[0002] The technology of foaming has a long history. Foaming is mainly used for the processing of plastics. Plastic foaming, including thermoplastics and thermosetting ones, can be foamed into foam plastics. The industrial preparation methods include: extrusion foaming, injection foaming, molding foaming, calendering foaming, powder foaming and spray foaming, etc. The box packaging containers made of plastic have many characteristics such as low density, light weight, easy processing, corrosion resistance, acid and alkali resistance, oil resistance, impact resistance, etc. The appearance can be transparent or opaque, and they are widely used in the food packaging industry. However, the existing technology cannot efficiently produce foamed plastic boxes. Summary of the invention

[0003] The purpose of the present invention is to provide a foamed plastic box production process, by which the foamed plastic box can be produced efficiently.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] A foam plastic box production process, the production process comprising the following steps:

[0006] Step 1: Mix the raw materials and add them to the first stage extruder, and then process them through the filter converter;

[0007] Step 2: Place the material in step 1 into the second-stage extruder and process it through a cooling, shaping and unfolding device;

[0008] Step 3: The material in step 2 is pulled and then rolled up by two axes to complete the production of the semi-finished foam plastic box;

[0009] Step 4: Pass the foamed plastic box semi-finished product through a label printing device to print the trademark and name on the foamed plastic box semi-finished product;

[0010] Step 5: Complete the production of the foam plastic box.

[0011] The raw materials need to be mixed and added to the first-stage extruder before the foaming agent is placed.

[0012] Preferably, the material needs to be subjected to static elimination treatment before being wound by the biaxial winding.

[0013] Preferably, the marking device includes a base plate, a transverse supporting slide, a sliding support plate, a marking roller and a printing roller. The base plate is fixedly connected to the transverse supporting slide, the sliding support plate is connected to the transverse supporting slide through a limiting component, and the marking roller and the printing roller are both rotatably connected to the sliding support plate.

[0014] Preferably, the limiting component includes a transverse slide, a limiting slide column I, an extrusion slide column and a transverse screw. The transverse slide column is slidably connected to the transverse supporting slide. Two limiting slide columns I are fixedly connected to the transverse slide column. The extrusion slide column is fixedly connected to the transverse slide column. The two limiting slide columns I and the extrusion slide column are both slidably connected to the slide support plate. The transverse screw is rotatably connected to the transverse supporting slide. The transverse slide column and the transverse screw are connected by threaded transmission.

[0015] Preferably, the marking device also includes a material storage box, a sealing cover and a sponge block. The material storage box is fixedly connected to the slide plate, and the sealing cover is slidably connected to the material storage box. Two sponge blocks are provided, and both sponge blocks are fixedly connected to the bottom of the material storage box. The marking roller and the printing roller are in contact with the two sponge blocks respectively.

[0016] Preferably, the marking device also includes a contact wedge I and a contact wedge II, wherein two contact wedges I are provided, the two contact wedges I are fixedly connected to the slide plate, the contact wedge II is fixedly connected to the cross-support slide, and the contact wedge II is in contact with the two contact wedges I.

[0017] Preferably, the printing device also includes a lifting slide column, a telescopic rod, a lifting slide plate, a transfer chamber, a reduction motor II and a supporting plate. Four lifting slide columns are fixedly connected to the base plate, the lifting slide plate is slidably connected to the four lifting slide columns, the telescopic rod is fixedly connected between the base plate and the lifting slide plate, the transfer chamber is fixedly connected to the lifting slide plate, the reduction motor II is fixedly connected to the lifting slide plate, the supporting plate is rotatably connected to the transfer chamber, and the output shaft of the reduction motor II is fixedly connected to the supporting plate.

[0018] Preferably, the marking device also includes a lifting protrusion and a lifting screw, the lifting protrusion and the lifting screw are connected by threads, four lifting protrusions and four lifting screws are provided, the four lifting protrusions are all slidably connected to the supporting plate, and the four lifting screws are all rotatably connected to the supporting plate.

[0019] Preferably, the marking device further comprises a linkage component, the linkage component is fixedly connected to the supporting plate, and the four lifting screws are all meshed and transmission-connected with the linkage component.

[0020] Preferably, the linkage component includes a vertical convex cavity, a linkage gear ring and a transmission worm. The vertical convex cavity is fixedly connected to the supporting plate, and the linkage gear ring is rotatably connected to the vertical convex cavity. The linkage gear ring is meshingly connected to the four lifting screws for transmission. The vertical convex cavity is fixedly connected to a transmission worm, and the transmission worm is meshingly connected to the linkage gear ring for transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0022] Figure 1It is a structural schematic diagram of a foamed plastic box production process of the present invention;

[0023] Figure 2 It is a structural schematic diagram of an embodiment of printing a mark on a foamed plastic box;

[0024] Figure 3 It is a schematic diagram of the overall structure of the printed mark of the present invention;

[0025] Figure 4 It is a schematic diagram of the other side structure of the whole printed mark of the present invention;

[0026] Figure 5 It is a schematic diagram of the overall structure of the printed mark of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the limiting component of the present invention;

[0028] Figure 7 It is a front structural schematic diagram of the limiting component of the present invention;

[0029] Figure 8 It is a structural schematic diagram of an embodiment of supporting and rotating a foam plastic box;

[0030] Fig. 9 It is a partial structural schematic diagram of an embodiment of supporting and rotating a foam plastic box;

[0031] Fig.10 It is a structural schematic diagram of the linkage component of the present invention;

[0032] Fig.11 It is a structural schematic diagram of an embodiment of driving a foam plastic box to rotate and adjust its height. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0034] The following is combined with Figure 1 Detailed description, a foam plastic box production process, the production process comprises the following steps:

[0035] Step 1: Mix the raw materials and add them to the first stage extruder, and then process them through the filter converter;

[0036] Step 2: Place the material in step 1 into the second-stage extruder and process it through a cooling, shaping and unfolding device;

[0037] Step 3: The material in step 2 is pulled and then rolled up by two axes to complete the production of the semi-finished foam plastic box;

[0038] Step 4: Pass the foamed plastic box semi-finished product through a label printing device to print the trademark and name on the foamed plastic box semi-finished product;

[0039] Step 5: Complete the production of the foam plastic box.

[0040] The following is combined with Figure 1 In detail, the raw materials need to be mixed and added to the first stage extruder before the foaming agent is placed.

[0041] The following is combined with Figure 1 In detail, the material needs to be subjected to static elimination treatment before being taken up by the biaxial winding.

[0042] According to the instruction manual Figure 2-7 In detail, the marking device includes a base plate 101, a transverse supporting slide 102, a sliding plate 103, a marking roller 104 and a printing roller 105. The base plate 101 is fixedly connected to the transverse supporting slide 102 by welding, the sliding plate 103 is connected to the transverse supporting slide 102 by a limiting component, and the marking roller 104 and the printing roller 105 are both connected to the sliding plate 103 by shaft rotation.

[0043] Furthermore, the base plate 101 serves as a supporting fixed space, so that the device can be placed stably on the ground, and can also provide a fixed space for the cross-support slide 102, and the cross-support slide 102 can provide a connecting space for the limiting component, and the limiting component can also provide a fixed space for the slide plate 103 and drive the slide plate 103 to slide, and the slide plate 103 can provide a rotating space for the printing roller 104 and the printing roller 105, so that the printing roller 104 and the printing roller 105 are in contact with the foamed plastic box semi-finished product, and the company's trademark and company name can be printed on the foamed plastic box semi-finished product. At this time, the processing of the foamed plastic box can be completed, and the company's trademark and company name can be printed on the foamed plastic box. The processed foamed plastic box can not only be sold for money, but also can be used to promote the company, which can further enhance the company's reputation.

[0044] According to the instruction manual Figure 2-7 In detail, the limiting component includes a transverse slide 201, a limiting slide column 1202, an extrusion slide column 203 and a transverse screw 204. The transverse slide 201 is slidably connected to the transverse support slide 102 through a groove. Two limiting slide columns 1202 are fixedly connected to the transverse slide 201 by welding. The extrusion slide column 203 is fixedly connected to the transverse slide 201 by welding. The two limiting slide columns 1202 and the extrusion slide column 203 are both slidably connected to the slide support plate 103 through holes. The transverse screw 204 is rotationally connected to the transverse support slide 102 through a hole. The transverse slide 201 and the transverse screw 204 are connected by threaded transmission.

[0045] Furthermore, the cross slide 201 plays a connecting role, and can provide a fixed space for the two limit slides 1202 and the squeeze slide 203, and the two limit slides 1202 can provide a sliding space for the slide plate 103 and limit it, so that the slide plate 103 can only slide up and down, and the squeeze slide 203 is sleeved with a spring, and the spring is located between the squeeze slide 203 and the slide plate 103. The elastic force generated by the spring acts on the slide plate 103, so that the slide plate 103 has a tendency to move downward, which can ensure that the printing roller 104 and the printing roller 105 are in contact with the foam plastic box at all times, and a reduction motor 1 is fixedly connected to the cross-support slide 102. The output shaft of the reduction motor 1 is fixedly connected to the transverse screw 204. When the printing roller 104 and the printing roller 105 are in contact with the foam plastic box at all times, the reduction motor 1 is started to drive the transverse screw 204 to rotate, and the rotating transverse screw 204 can drive the transverse slide 201 to slide, and finally drive the printing roller 104 and the printing roller 105 to move, so as to print the company's trademark and company name on the foam plastic box.

[0046] According to the instruction manual Figure 2-5 Detailed description: the marking device also includes a material storage box 301, a sealing cover 302 and a sponge block 303. The material storage box 301 is fixedly connected to the slide plate 103 by welding, and the sealing cover 302 is slidably connected to the material storage box 301 through a cavity. Two sponge blocks 303 are provided, and the two sponge blocks 303 are fixedly connected to the bottom of the material storage box 301 by glue. The marking roller 104 and the printing roller 105 are in contact with the two sponge blocks 303 respectively.

[0047] Furthermore, dye is stored in the material storage box 301, and two lower grooves are arranged at the bottom of the material storage box 301. Two sponge blocks 303 are respectively located in the two lower grooves below the material storage box 301. The dye located in the material storage box 301 is smeared onto the marking roller 104 and the printing roller 105 through the two sponge blocks 303. At this time, the marking roller 104 and the printing roller 105 are both adhered with dye. At this time, when the marking roller 104 and the printing roller 105 contact and move with the foam plastic box, the company's trademark and company name can be clearly printed on the foam plastic box. A connecting pipe is arranged above the material storage box 301, and a sealing cover 302 is slidably connected to the connecting pipe. After the sealing cover 302 is removed, the dye can be added to the connecting pipe on the material storage box 301, and the dye can enter the material storage box 301.

[0048] According to the instruction manual Figure 2-7In detail, the marking device also includes a contact wedge block I401 and a contact wedge block II402. Two contact wedge blocks I401 are provided. The two contact wedge blocks I401 are fixedly connected to the slide plate 103 by welding, and the contact wedge block II402 is fixedly connected to the cross-support slide 102 by welding. The contact wedge block II402 is in contact with the two contact wedge blocks I401.

[0049] Furthermore, the two contact wedge blocks I401 and the contact wedge block II402 are both provided with inclined surfaces, and the contact wedge block II402 is fixed. When the two contact wedge blocks I401 slide along with the slide plate 103, the inclined surfaces of the two contact wedge blocks I401 and the contact wedge block II402 will slide accordingly. At this time, the elastic force generated by the spring sleeved on the extrusion slide column 203 acts on the slide plate 103 to move the slide plate 103 downward. The slide plate 103 drives the printing roller 104 and the printing roller 105 to move downward to achieve contact with the foam plastic box, thereby completing the printing of the company's trademark and company name on the foam plastic box.

[0050] According to the instruction manual Figure 2 and 8 -11 is described in detail, the printing device also includes a lifting slide 501, a telescopic rod 502, a lifting slide 503, a transfer chamber 504, a reduction motor II505 and a support plate 506. Four lifting slides 501 are fixedly connected to the base plate 101 by welding, the lifting slide 503 is slidably connected to the four lifting slides 501 through holes, the telescopic rod 502 is fixedly connected between the base plate 101 and the lifting slide 503 by welding, the transfer chamber 504 is fixedly connected to the lifting slide 503 by welding, the reduction motor II505 is fixedly connected to the lifting slide 503 by welding, the support plate 506 is rotatably connected to the transfer chamber 504 through a convex ring and a bearing, and the output shaft of the reduction motor II505 is fixedly connected to the support plate 506 by welding.

[0051] Furthermore, the four lifting slides 501 can provide sliding space for the lifting slide plate 503, so that the lifting slide plate 503 can only slide up and down, and the lifting slide plate 503 can provide a fixed space for the transfer chamber 504 and the reduction motor II505 and drive them to lift, and the transfer chamber 504 can provide a rotating space for the support plate 506, and the reduction motor II505 can drive the support plate 506 to rotate, so that multiple foam plastic boxes can be evenly placed on the support plate 506. The support plate 506 is provided with four lifting slide cavities, which can provide sliding space for the four lifting protrusions 601 and limit them so that the four lifting protrusions 601 can only move up and down, and the reduction motor II505 is started. Motor II505 allows the reduction motor II505 to rotate intermittently, rotating only ninety degrees each time, and hovering for a period of time, and then rotating ninety degrees again. During the period of time when the reduction motor II505 is hovering, multiple foam plastic boxes are intermittently moved to the bottom of the printing roller 104 and the printing roller 105, and the printing roller 104 and the printing roller 105 are used to print the company's trademark and company name on the foam plastic box. According to the thickness of the foam plastic box, the telescopic rod 502 is started to adjust the height of the foam plastic box to ensure that the distance reserved between the foam plastic box and the printing roller 104 and the printing roller 105 is appropriate, so as to realize the processing of foam plastic boxes of different specifications.

[0052] According to the instruction manual Figure 8-10 In detail, the printing device also includes a lifting protrusion 601 and a lifting screw 602, and the lifting protrusion 601 is connected to the lifting screw 602 by threads. There are four lifting protrusions 601 and four lifting screws 602, and the four lifting protrusions 601 are slidably connected to the supporting plate 506 through square openings, and the four lifting screws 602 are rotatably connected to the supporting plate 506.

[0053] Furthermore, the four lifting protrusions 601 can provide space for placing the foam plastic box. When the foam plastic box is buckled on the lifting protrusions 601, the foam plastic box will be fixed and will not move. This makes it more convenient to print the company's trademark and company name on the foam plastic box. The rotation of the lifting screw 602 can drive the lifting protrusion 601 to rise and fall, thereby changing the height at which the four lifting protrusions 601 extend, thereby achieving limited fixing of foam plastic boxes of different thicknesses, further improving the applicability of the device. Gears are fixedly connected to the bottom of the multiple lifting screws 602, and the gears can be used to drive the lifting screws 602 to rotate.

[0054] According to the instruction manual Figure 8-10 In detail, the marking device further comprises a linkage component, which is fixedly connected to the supporting plate 506 by welding, and the four lifting screws 602 are all meshed and transmission-connected with the linkage component.

[0055] Furthermore, the four lifting screws 602 can be driven to rotate at the same time through the linkage component, so that the four lifting protrusions 601 can be lifted and lowered at the same time. At this time, the four lifting protrusions 601 can be ensured to be at the same height, so that the foam plastic boxes of the same specifications can be printed and labeled, and the company's trademark and company name can be printed on the foam plastic boxes.

[0056] The linkage component includes a vertical convex cavity 701, a linkage gear ring 702 and a transmission worm 703. The vertical convex cavity 701 is fixedly connected to the supporting plate 506 by welding. The linkage gear ring 702 is rotatably connected to the vertical convex cavity 701 through a bearing. The linkage gear ring 702 is meshingly connected to the four lifting screws 602. The transmission worm 703 is fixedly connected to the vertical convex cavity 701 through a bearing seat. The transmission worm 703 is meshingly connected to the linkage gear ring 702.

[0057] Furthermore, the vertical convex cavity 701 plays a role in bearing connection, and the lower part of the linkage gear ring 702 is designed with a worm gear structure, and the transmission worm 703 can drive the linkage gear ring 702 to rotate through the worm gear, and the rotating linkage gear ring 702 can simultaneously drive the four lifting screws 602 to rotate, ensuring that the four lifting protrusions 601 can be lifted and lowered at the same time and are at the same height, so as to realize the printing and labeling of foam plastic boxes of the same specifications, and realize printing the company's trademark and company name on the foam plastic box.

Claims

1. A foam plastic box label printing device, characterized by: The marking device comprises a base plate (101) and a transverse support slideway (102) fixedly connected to the base plate (101); a slide support plate (103) is connected to the transverse support slideway (102) via a limiting member; a marking roller (104) and a printing roller (105) are rotatably connected to the slide support plate (103); The limiting component comprises a transverse slide plate (201) slidably connected to the transverse support slideway (102) and two limiting slide columns I (202) fixedly connected to the transverse slide plate (201); an extrusion slide column (203) is fixedly connected to the transverse slide plate (201); the two limiting slide columns I (202) and the extrusion slide column (203) are both slidably connected to the slide support plate (103); a transverse guide screw (204) is rotatably connected to the transverse support slideway (102); and the transverse guide screw (204) is rotatably connected to the transverse support slideway (102). The lever (204) is connected to the horizontal slide plate (201) through a threaded transmission; a spring is sleeved on the extrusion slide column (203), and the spring is located between the extrusion slide column (203) and the slide support plate (103). The elastic force generated by the spring acts on the slide support plate (103), so that the slide support plate (103) tends to move downward; a reduction motor I is fixedly connected to the horizontal support slideway (102), and the output shaft of the reduction motor I is fixedly connected to the horizontal movement screw (204); The slide plate (103) is fixedly connected with two contact wedges I (401), and the cross-support slideway (102) is fixedly connected with a contact wedge II (402), and the two contact wedges I (401) are in contact with the contact wedge II (402); the two contact wedges I (401) and the contact wedge II (402) are both provided with inclined surfaces; The base plate (101) is fixedly connected with four lifting slides (501), and the four lifting slides (501) are slidably connected with a lifting slide plate (503). A telescopic rod (502) is fixedly connected between the base plate (101) and the lifting slide plate (503). The lifting slide plate (503) is fixedly connected with a transfer cavity (504). The lifting slide plate (503) is fixedly connected with a reduction motor II (505). A supporting plate (506) is rotatably connected with the transfer cavity (504), and the supporting plate (506) is fixedly connected to the output shaft of the reduction motor II (505). A plurality of foam plastic boxes can be evenly placed on the supporting plate (506).

2. A foam plastic box labeling device according to claim 1, characterized in that: The sliding plate (103) is fixedly connected with a material storage box (301), and a sealing cover (302) is slidably connected with the material storage box (301). Two sponge blocks (303) are fixedly connected below the material storage box (301), and the two sponge blocks (303) are in contact with the printing roller (104) and the printing roller (105) respectively.

3. A foam plastic box labeling device according to claim 1, characterized in that: The supporting and rotating plate (506) is slidably connected to four lifting protrusions (601), and the four lifting protrusions (601) are all connected to lifting screws (602) through threads, and the four lifting screws (602) are all rotatably connected to the supporting and rotating plate (506).

4. A foam plastic box labeling device according to claim 3, characterized in that: A linkage component is fixedly connected to the supporting plate (506), and the linkage component is meshed and transmission-connected with the four lifting screws (602).

5. A production process for producing foamed plastic boxes using the marking device according to any one of claims 1 to 4, characterized in that: The production process includes the following steps: Step 1: Mix the raw materials and add them to the first stage extruder, and then process them through the filter converter; Step 2: Place the material in step 1 into the second-stage extruder and process it through a cooling, shaping and unfolding device; Step 3: The material in step 2 is pulled and then rolled up by two axes to complete the production of the semi-finished foam plastic box; Step 4: Pass the foamed plastic box semi-finished product through a label printing device to print the trademark and name on the foamed plastic box semi-finished product; Step 5: Complete the production of the foam plastic box.

6. A foam plastic box production process according to claim 5, characterized in that: The raw materials need to be mixed and added to the first-stage extruder before the foaming agent is placed.

7. A foam plastic box production process according to claim 5, characterized in that: The material needs to be subjected to static elimination treatment before being taken up by the biaxial winding.

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