JPH0491948A - Method and device for continuously manufacturing packaging material for cushion - Google Patents

Abstract

PURPOSE:To remarkably reduce the installation cost and the product cost by performing coating of an adhesive, scattering of a filling material and removal of excess filling material on the upper face of a fed thermoplastic sheet. CONSTITUTION:A thermoplastic sheet S is properly heated and softened by means of a preheating device 1 consisting of a preheating roll and is fed to the next filling mechanism 2, where the surface of the sheet S is coated with an adhesive 31 by means of an adhesive-coating device 3 and a filling material 4b is scattered and adhered on the coated face by means of a scattering device 4. At this time, excess filling material 4b is scraped, sucked and removed by means of a removing device 5 consisting of a brush roll 5a and a suction discharge duct 5b and amt. of filling on the surface of the sheet S there is approximately made uniform. Then, it is heated by means of a heating device 7 and is sent into a molding device 9 to mold a containing part 11 of a cushioning product provided with a filling face and consisting of a required number of recessed parts. Then, it is sent out of a molding mechanism 6 and is punched as a single packaging material by means of a punching mechanism 10.

Description

[Detailed description of the invention]

(Industrial Application Field) The present invention is suitable for storing fruits, such as apples, which are easily damaged during transportation and whose surfaces are susceptible to moisture during storage. (Prior art) Conventionally, when manufacturing this type of cushioning packaging material, it is necessary to add cushioning properties to the packaging material and to improve the continuous manufacturing equipment. For example, a large electrostatic stone coating device is used to electrostatically bond (dye-colored powder, etc.) onto the surface of a thermoplastic plastic sheet, and this is then attached to a large diameter [
-1- After separately manufacturing the roll-shaped roll,
This can be purchased from a molding company and made into the required concave shape (forming τ1). As a result, there is the problem that the product packaging material itself becomes expensive, and because the electrostatic adhesion treatment and molding treatment are performed in separate locations, it is difficult to mass-produce with high efficiency.
From this point of view, there is a problem that strikes will become even more expensive.
゜The present invention has been researched and developed with the aim of solving the above problems. Continuous production of cushioning packaging material 1) method that allows molding of one culm to be carried out continuously, greatly reducing equipment costs and products, and significantly improving production efficiency. The purpose is to provide such equipment. . (Means for Solving the Problems) As a first step to solving the above problems and achieving the object, the present invention provides an adhesive on the upper surface of the thermoplastic plastic sheet L to be fed. The first step is to apply the flocking material to the culm, the first step to remove the excess flocking material after spraying, and the first step to remove the excess flocking material after the first step. The heated sheet is heated and the softened J-culm is molded into a softened sheet b'-', which is then molded into a cushioning-required material accommodating part consisting of the required number of recesses with a flocked surface. A continuous manufacturing method for a cushioning packaging material, characterized in that each of the above-mentioned steps is carried out sequentially and continuously; In front of the culm - 1 culm - C - Preheating of thermoplastic plastic sheet 1]] Attach the culm No. h11 -
At the same time, the storage section for loose items will be established.'' -■■The back of the culm also handles the holding of the ceremonial clothing storage section,...! ! 'j] Attach culm h11
We have developed and adopted a method for continuous manufacturing of cushioning packaging materials. Roughly speaking, in the present invention (Table 1, heat supplied ij J plasticity zo 2
On the + side kJ of the Nosudik sheet, a flocking mechanism constituted by sequentially disposing an adhesive application means, a flocking material dispersion means, and a removing means for the scattered surplus flocking material, and a rear part of the flocking mechanism. A shock absorbing device characterized in that a molding mechanism is successively arranged in the section, and a molding mechanism for a storage part for a work requiring work is sequentially arranged in one stage of heating and a required number of concave parts. In the continuous manufacturing apparatus for packaging materials and the above-mentioned apparatus, a means for preheating the thermoplastic sheet is provided in front of the adhesive application means in the flocking mechanism, and a cushioning material is provided at the rear of the forming mechanism. We have developed and adopted a continuous manufacturing device for cushioning packaging material, which is characterized by a continuous beating mechanism for the storage section. (Function) One essential function of the present invention constituted by J and U above is as follows.
+ Let me explain. [] - Thermoplastic f-less book sheet S rolled into a loop shape
The seeds are first fed to a preheating means '1 consisting of a preheater (J-L), softened by moderate IC heating at the core, and fed to the next planting mechanism 2. After the adhesive 3b is applied to the surface of the sheet S by the adhesive application means 3 in the flocking machine @2, the flocking material 4F is sprayed onto the coated surface by the spreading means 4. At this time, some extra flocking material 4b is scattered, and the excess flocking material 4b is then scraped off by a removing means 5 consisting of a brush roll 5a and suction/discharge ducts i to 5b. , are removed by suction, and the amount of flocking on the surface of the sheet S is approximately equalized in the core part.The preheating means 1 has a function that helps improve the efficiency of flocking with the adhesive.Next, as described above, The sheath 1-3 that has undergone flocking is then sent to the culm molding mechanism 6 and heated by the heating means 7, which dries the applied adhesive to ensure the flocked state and to make it suitable for molding. After heating the sheet S to a state of
This is sent to the molding means 9, and a buffer-required material accommodating part 11 is molded in the eye area, which is made up of a required number of recesses provided with a flocked surface. The sheet S that has been formed as described above is transferred to the forming mechanism 6
As shown in the figure, the packaging material is punched out as a single packaging material by the punching mechanism 10, or it is appropriately cut into a packaging material of a desired shape and size having a plurality of storage sections 11. It is something that Although the sheet S is fed by a conventional continuous feed roll, it may be configured to be fed intermittently to ensure smooth continuous operation of all J culms. (Example) Hereinafter, an example of the present invention will be described based on an example of an apparatus shown in the accompanying drawings. In the figure, S is the entire J:L installed at the starting end side.
It is a thermoplastic Zofsudic sheet made of polyvinyl chloride or the like wound into a shape (although not shown in detail, in this embodiment, it is intermittently fed to the punching mechanism side to be described later) by a conventional intermittent feeding means. 1 includes a preheating means C-' consisting of a preheating roll disposed between the sea i-S on the starting end side and the flocking mechanism 2;
In order to bond the flocking material more quickly and efficiently, the sheet S immediately before being fed to the flocking mechanism 2 is heated to an appropriate temperature. The flocking mechanism 2 supplies the liquid adhesive 3b contained in the tank 3a to the bottom of the tank.

[) Supply port 3
From G to application members such as brushes, sponges, and cloth (not shown)
A flocking material consisting of an adhesive application means 3 configured to apply the adhesive to the upper surface of the sheet S via a vibrator, and a hygroscopic powdery natural or synthetic fiber contained in a tank 4a vibrated by a vibrator. 4b, a flocking material dispersing means 4 configured to vibrate from a large number of pores (detailed illustrations omitted) /1c provided at the bottom of the tank to the surface to which the adhesive is applied; ] (Scrape off the surplus of the scattered flocking material 4b and spread it) Brush [J-ru 5a and the brush]-
A means 5 for removing excess flocked material, which is constituted by a suction and discharge duct 5b connected to the duct 5a, is sequentially disposed above the sheet S. Reference numeral 6 denotes a molding mechanism installed next to the flocking mechanism 3, and the molding mechanism 6 includes a heating means 7 consisting of the same turf a and 7a disposed below 1 with the feeding sheet S in between. and 1, which are arranged separately surrounding the upper and lower heaters 7a, 7a.
- Lower pair of chain type - Seal 1 with conveyors 8a, 8a - Feeding means 8 consisting of conveyors 8b, 8b, and a plurality of recesses arranged next to heating means 7 A fixed upper mold (FI type) 9a is provided on the upper part, and a movable lower mold (male mold) is provided with a plurality of lugs that move in and out of each of the recessed parts.
9b is provided at the lower part, and a vacuum source 9C is provided which communicates with the fixed upper mold 9a. 10 is a molding device connected next to the molding mechanism 6. This punching mechanism 10 handles a molded article, that is, a storage section 11 for a material that needs to be pulled slowly, which is a concave part, as a single unit. 10, the sheet conveyed from the molding mechanism 6] is cut into a desired shape and size and placed in a plurality of storage sections 11.
A packaging material may be formed with the following. According to the embodiment configured as described above, without using an electrostatic flocking device as the flocking means, the adhesive applying means 3 and the flocking are arranged sequentially next to the heating means 1 of the sheet S. Since the flocking mechanism 2 is comprised of a material dispersion means 4 and a stage for removing excess flocking material, equipment costs can be reduced significantly compared to conventional large-scale electrostatic flocking equipment. In manufacturing cushioning packaging materials, steps from the flocking process for sheets to the molding process are carried out in a series of steps.
-It has greatly improved production efficiency compared to the conventional division of labor production method in which culms were produced separately, but -) and can provide product packaging materials at lower cost. Embodiment 1 of the invention will be described (Example 1 of the invention), but the present invention is limited to the above-mentioned embodiment (hereinafter referred to as ""), and the object of the invention can be achieved and the scope of the invention does not depart from the gist of the invention. The present invention relates to a continuous manufacturing method and apparatus for a cushioning packaging material constructed as described above. 3゜(1) Sheet surface (with no need to use an electrostatic flocking device as a flocking step), a means of applying a necking agent, and a method of dispersing flocking material. Since it adopts a flocking mechanism consisting of a means for removing excess flocking material and a means for removing excess flocking material, the installation cost and equipment space can be significantly reduced compared to conventional large-scale electrostatic planting systems. , Schiff J is able to provide packaging materials at a low cost. (2) The planting process is carried out through a series of continuous processes from the second culm to the molding process. Compared to the conventional division of labor production method in which the molding and molding processes were performed separately, the production capacity can be significantly increased to 4A, and losses can be significantly reduced, providing packaging materials at lower prices. (3) Following the flocking process, the sheet is heated and reeled by the heating means in the molding mechanism, so there is no need to provide a special lower stage for drying the adhesive layer after flocking, unlike in the past. (4) The product packaging material has a uniform and uniform flocked surface C1 on the entire surface, and cushions and protects the stored articles evenly and sufficiently, and the fiber powder of the flocked material is a single layer.
Since it has a moderate amount of suction compared to the last sheet, it is suitable for storing items such as fruits such as apples, which are easily perishable while being stored. M quotation packaging material / (optimal [2').

[Brief explanation of drawings]

The drawings omit examples of equipment for carrying out the present invention;
This is a simple explanatory diagram 3. (Explanation of the symbol g) S... Thermoplastic - / "Las" 1 Tsukushi 1, ?・・・
- Transplanting mechanism, 3...Means for applying a grafting agent, 3a...Method for applying a grafting agent, 4...Means for dispersing flocking material, 4[)...Flocked trA paddy, 5...Flocking material 6... Molding mechanism, 7... Heating means, 9... Molding means, 11... Article storage part (concave part).

Claims (4)

[Claims] (1) a step of applying an adhesive to the upper surface of the thermoplastic plastic sheet being fed; a step of spraying and adhering the flocking material to the adhesive-applied surface; and a step of removing the surplus flocking material that has been spread; The process consists of a step of heating and softening the flocked sheet, and a step of molding the softened sheet to form a cushioning material storage area consisting of a required number of recesses provided with a flocked surface, and each of the above steps. 1. A continuous manufacturing method for a cushioning packaging material, characterized by sequentially and continuously performing the following steps. (2) A preheating process for the thermoplastic sheet is added as a pre-process to the adhesive application process, and a punching process for the accommodating part is added as a post-process to the molding process for the accommodating part of the cushioning object. The continuous manufacturing method for a cushioning packaging material according to claim (1). (3) A flocking mechanism configured by sequentially disposing an adhesive application means, a flocking material scattering means, and a removing means for the scattered surplus flocking material on the upper side of the thermoplastic plastic sheet being fed. , characterized in that a heating means and a molding means for molding a cushioning material accommodating portion consisting of a required number of concave portions are successively arranged in the rear part of the flocking mechanism. Continuous manufacturing equipment for cushioning packaging materials. (4) A means for preheating the thermoplastic sheet is disposed in front of the adhesive application means in the flocking mechanism, and a punching mechanism for the storage portion of the cushioning material is connected to the rear of the molding mechanism. The continuous manufacturing apparatus for a cushioning packaging material according to claim (3).