Compression packaging device and method for rock wool products

Abstract

The invention relates to the technical field of rock wool products, in particular to a compression packaging device and method.The device comprises an independent packaging machine, a hot-press sealing machine and a combined packaging machine, the independent packaging machine comprises a compression bin used for compressing the rock wool products, and a discharging port is formed in one end of the bottom of the compression bin; a first duckbilled plate is arranged on the outer side of the discharge port of the compression bin; the combined packaging machine comprises a small bag containing cavity, a bag inlet and a bag outlet are formed in the same side of the small bag containing cavity, a second duckbilled plate is arranged on the outer side of the bag outlet, and the second duckbilled plate is used for being sleeved with a large packaging bag. The mode that a plurality of small packaging bags enter one large packaging bag is adopted, the protection effect of the small packaging bags on single rock wool is reserved, centralized storage is achieved through the large packaging bags, the transportation cost is reduced, and then the utilization rate of the novel light building material is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rock wool products, and particularly relates to a compression packaging device and method for rock wool products. BACKGROUND

[0002] Rock wool products have become a new type of light energy-saving thermal insulation building wall material in the fields of construction and industry due to their excellent thermal insulation, sound absorption and fireproof properties. However, the traditional rock wool products are fluffy in nature, have a high inter-fiber void ratio, and thus have a large volume, which brings many inconveniences to transportation and storage, increases logistics costs, and occupies a large amount of storage space. Meanwhile, the traditional packaging method of rock wool products is relatively simple, and ordinary plastic bags or woven bags are usually used for wrapping, which has poor sealing and protective properties. During transportation and storage, the fibers are prone to breakage and the structure is prone to looseness, which affects the mechanical properties and thermal insulation effect of the rock wool products. In addition, the traditional packaging cannot effectively block water vapor, and the rock wool products are prone to moisture absorption, which reduces the thermal insulation performance and shortens the service life. SUMMARY

[0003] In view of the above technical deficiencies, the present application aims to provide a compression packaging device and method for rock wool products, wherein the compression packaging device for rock wool products comprises an independent packaging machine, a hot-press sealing machine and a combined packaging machine. The independent packaging machine comprises a compression bin for compressing rock wool products. The compression bin is provided with a discharge port at one end of the bottom. A first duckbill plate for sleeving a small packaging bag is arranged outside the discharge port of the compression bin. The rock wool products compressed in the compression bin enter the small packaging bag through the first duckbill plate. The hot-press sealing machine is used for sealing the small packaging bag containing the rock wool products. The combined packaging machine comprises a small bag accommodating cavity. The same side of the small bag accommodating cavity is provided with an inlet and an outlet. The sealed small packaging bag enters the small bag accommodating cavity through the inlet and is arranged horizontally in the width direction. The outlet is provided with a second duckbill plate parallel to the length direction of the small packaging bag. The second duckbill plate is used for sleeving a large packaging bag. The width of the second duckbill plate is a multiple of the width of the first duckbill plate. A plurality of small packaging bags enter the large packaging bag sleeved on the second duckbill plate for combined packaging.

[0004] In order to solve the problem of how to preliminarily compress the rock wool product and pack it into a small packaging bag, the following features are specifically provided: the bottom of the compression bin is provided with parallel positioning baffles, the spacing between the positioning baffles is the same as the width of the discharge port, a first upper compression plate above the positioning baffles is slidably installed in the compression bin, the independent packaging machine is provided at the top of the compression bin with a second linear driver for driving the first upper compression plate to move in the vertical direction, the compression bin is slidably installed with a first push plate at one end of the positioning baffles relative to the discharge port, the first push plate is the same width as the discharge port, the independent packaging machine further comprises a third linear driver for driving the first push plate to move along the length direction of the positioning baffles, and the first push plate is used to push the compressed rock wool product in the positioning baffles into the first duckbill plate.

[0005] In order to make the small packaging bag easily set on the first duckbill plate and ensure that the small packaging bag can be kept in a fully unfolded state on the first duckbill plate, the following features are specifically provided: the first duckbill plate comprises a first lower duckbill and a first upper duckbill in the shape of "Fang", the first lower duckbill is fixedly installed below the discharge port, the first upper duckbill is fixedly installed on the first lifting frame, the first lifting frame is slidably installed above the discharge port, and the independent packaging machine is provided with a first linear driver for driving the first lifting frame to move in the vertical direction.

[0006] In order to solve the problem of how to pack the small packaging bag into a large packaging bag, the following features are specifically provided: the small package containing cavity is provided at one end of the package inlet with a second push plate for pushing and extruding the small packaging bag to the other end of the package outlet, the combined packaging machine comprises a fifth linear driver for driving the second push plate to move along the length direction of the small package containing cavity; a second upper compression plate for extruding the small packaging bag downward is provided above the small package containing cavity, a third push plate is slidably installed on one side of the small package containing cavity relative to the package outlet, the third push plate is the same width as the package outlet, and the combined packaging machine further comprises a seventh linear driver for driving the third push plate to move along the length direction of the second duckbill plate.

[0007] In order to make the large packaging bag easily set on the second duckbill plate and ensure that the large packaging bag can be kept in a fully unfolded state on the second duckbill plate, the following features are specifically provided: the second duckbill plate comprises a second lower duckbill and a second upper duckbill in the shape of "Fang", the second lower duckbill is fixedly installed below the discharge port, the second upper duckbill is fixedly installed on the second lifting frame, the second lifting frame is slidably installed above the package outlet, and the combined packaging machine is provided with a fourth linear driver for driving the second lifting frame to move in the vertical direction.

[0008] In order to send the small packaging bag into the hot press sealing machine after the rock wool product enters the small packaging bag, the following features are specifically provided: a material moving conveying belt is arranged between the independent packaging machine and the hot press sealing machine, the material moving conveying belt is located below the first duckbill plate of the independent packaging machine, and the material moving conveying belt conveys the packaging bag at the first duckbill plate to the input end of the hot press sealing machine.

[0009] In order to automatically send the small packaging bag sealed by the hot press sealing machine into the small bag containing cavity of the combined packaging machine, the following features are specifically provided: a clamping conveying roller is arranged between the hot press sealing machine and the combined packaging machine, the clamping conveying roller is located on the upper and lower sides of the output end of the hot press sealing machine respectively, the output end of the clamping conveying roller is aligned with the bag inlet of the combined packaging machine, and the clamping conveying roller is used to clamp the small packaging bag sealed to move along the length direction of the clamping conveying roller and enter the small bag containing cavity of the combined packaging machine.

[0010] In order to discharge the large packaging bag in which the small packaging bags are packaged, the following features are specifically provided: a discharging conveying belt for conveying the large packaging bag is arranged at the second duckbill plate of the combined packaging machine.

[0011] A compression packaging method for rock wool products is realized by using a compression packaging device for rock wool products, and includes the following steps: S1, a rock wool product is obtained and the surface thereof is pretreated, and the treated rock wool product is placed into a compression chamber of an independent packaging machine; S2, the independent packaging machine pre-compresses the rock wool product in the compression chamber at a pressure of 0.15-0.25 MPa, slowly applies pressure for 40-50 seconds, preliminarily densifies the surface layer of the rock wool, eliminates the loose space in the surface layer, controls the pressure rising rate at 0.01 MPa / s, then maintains the pre-compression pressure for 1 minute, then adjusts the target pressure according to the density of the rock wool, and compresses for 1.5-2.5 minutes, to ensure that the density after compression is uniform and the density deviation is less than or equal to 5%; S3, a small packaging bag made of PE material is sleeved at the first duckbill plate, the compressed rock wool product in the compression chamber enters the small packaging bag through the first duckbill plate, and then the small packaging bag is taken out and sealed in a hot press sealing machine; S4, the small packaging bag sealed is neatly placed into a small bag containing cavity of a combined packaging machine, a large packaging bag made of woven material is sleeved at the second duckbill plate, the large packaging bag is completed by being moderately extruded and pushed into the second duckbill plate, a plurality of small packaging bags are wrapped as a whole, and a firm combined packaging unit is formed.

[0012] In order to ensure that the compression rate of the rock wool product in the compression method is sufficient for compression, the following features are specifically provided: the rock wool product in S1 is a low binder rock wool product with a bulk density less than 50 kg / m³ and a binder content less than 2%.

[0013] The advantages of this invention compared to the prior art are: Firstly, the present invention uses a method of placing several small packaging bags into a large packaging bag, which results in a high degree of automation of the overall equipment. It retains the protective function of small packaging for individual rock wool products, while achieving centralized storage through large packaging. After compression treatment, the volume of rock wool products is reduced by 40%-55% compared to traditional uncompressed rock wool products. The loading capacity of the same transport vehicle can be increased by more than 80%, which significantly reduces transportation costs. In turn, it reduces the production cost of this new type of lightweight building material and increases its utilization rate.

[0014] Secondly, through scientific gradient pressure compression treatment, the fiber structure of the rock wool is effectively protected, maintaining its original thermal insulation, heat insulation, and fireproof properties. At the same time, the tightly fitting packaging materials and robust sealing method provide excellent protection for the rock wool products, reducing the risk of damage from compression and collisions during transportation.

[0015] Thirdly, the small packaging bags used for packaging rock wool products in this invention are wrapped and sealed with PE composite film, which can effectively block moisture and dust; the large packaging bags are made of woven materials, which can effectively prevent rock wool products from rebounding, loosening and breaking at the edges and corners during transportation and storage, thereby improving the overall protective performance of the products. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of a compression packaging device for rock wool products.

[0018] Figure 2 This is a top view of a compression packaging device for rock wool products.

[0019] Figure 3 This is a perspective view of an independent packaging machine used in the compression packaging of rock wool products in its working state.

[0020] Figure 4 This is a perspective view of a stand-alone packaging machine for compression packaging of rock wool products in its non-operating state.

[0021] Figure 5 This is a front view of a stand-alone packaging machine for compression packaging of rock wool products in its non-operating state.

[0022] Figure 6 Physical for a stand-alone packaging machine for a compressed packaging device for rock wool products Figure 1 .

[0023] Figure 7 Physical for a stand-alone packaging machine for a compressed packaging device for rock wool products Figure 2 .

[0024] Figure 8 Perspective view of a combined packaging machine for a compressed packaging device for rock wool products Figure 1 .

[0025] Figure 9 Perspective view of a combined packaging machine for a compressed packaging device for rock wool products Figure 2 .

[0026] Figure 10 Front view of a combined packaging machine for a compressed packaging device for rock wool products

[0027] Figure 11 Perspective structural exploded view of a combined packaging machine for a compressed packaging device for rock wool products Figure 1 .

[0028] Figure 12 Perspective structural exploded view of a combined packaging machine for a compressed packaging device for rock wool products Figure 2 .

[0029] Figure 13 Physical for a combined packaging machine for a compressed packaging device for rock wool products Figure 1 .

[0030] Figure 14 Physical for a combined packaging machine for a compressed packaging device for rock wool products Figure 2 .

[0031] Figure 15 Physical for a combined packaging machine for a compressed packaging device for rock wool products Figure 3 .

[0032] Explanation of reference signs: 1, independent packaging machine; 1a, compression bin; 1a1, discharge port; 1b, first duckbill plate; 1b1, first lower duckbill; 1b2, first upper duckbill; 1b3, first lifting frame; 1b4, first linear driver; 1c, positioning baffle; 1d, first upper pressing plate; 1d1, second linear driver; 1e, first push plate; 1e1, third linear driver; 2, hot-press sealing machine; 2a, material moving conveyor belt; 2b, clamping conveyor roller; 3, combined packaging machine; 3a, small package accommodating cavity; 3a1, package inlet; 3a2, package outlet; 3b, second duckbill plate; 3b1, second lower duckbill; 3b2, second upper duckbill; 3b3, second lifting frame; 3b4, fourth linear driver; 3c, second push plate; 3c1, fifth linear driver; 3d, second upper pressing plate; 3d1, sixth linear driver; 3e, third push plate; 3e1, seventh linear driver; 4, material feeding conveyor belt. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] Reference Figures 1 to 15 : A compression packaging device for rock wool products, comprising an independent packaging machine 1, a hot-press sealing machine 2 and a combined packaging machine 3. The independent packaging machine 1 comprises a compression bin 1a for compressing rock wool products. The compression bin 1a is provided with a discharge port 1a1 at one end of the bottom. The compression bin 1a is provided with a first duckbill plate 1b outside the discharge port 1a1 for sleeving a small packaging bag. The compressed rock wool products in the compression bin 1a enter the small packaging bag through the first duckbill plate 1b. The hot-press sealing machine 2 is used for sealing the small packaging bag containing the rock wool products. The combined packaging machine 3 comprises a small package accommodating cavity 3a. The same side of the small package accommodating cavity 3a is provided with a package inlet 3a1 and a package outlet 3a2. The sealed small packaging bag enters the small package accommodating cavity 3a through the package inlet 3a1 and is arranged horizontally in the width direction. The outside of the package outlet 3a2 is provided with a second duckbill plate 3b parallel to the length direction of the small packaging bag. The second duckbill plate 3b is used for sleeving a large packaging bag. The width of the second duckbill plate 3b is a multiple of the width of the first duckbill plate 1b. A plurality of small packaging bags enter the large packaging bag sleeved on the second duckbill plate 3b for combined packaging.

[0035] The compression packaging device in the application is used in the following way: the staff places the rock wool product in the compression bin 1a of the independent packaging machine 1, and uses the independent packaging machine 1 to compress the rock wool product in the first step. When the compression is completed, the staff manually or by using the existing packaging material supply system (not shown in the figure) sends the pre-prepared small packaging bag to the first duckbill plate 1b. The small packaging bag can be a polyethylene (PE) composite film. The use of the PE composite film to wrap and seal the rock wool product can effectively block water vapor and dust. The first duckbill plate 1b pries the PE composite film from the inside. Then the compressed rock wool product enters the PE composite film through the first duckbill plate 1b. After the rock wool product enters the PE composite film, it is removed and sent to the hot press sealing machine 2. The hot press sealing machine 2 uses a vacuum adsorption method to tightly attach the packaging film to the surface of the rock wool product. Then a heat sealing device is used to seal the interface of the packaging film to form a sealed package. Finally, the sealed small packaging bag is neatly placed in the small bag containing cavity 3a of the combined packaging machine 3. The staff manually or by using the existing packaging material supply system sends the pre-prepared large packaging bag to the second duckbill plate 3b at the out-bag opening 3a2. The second duckbill plate 3b pries the large packaging bag from the inside. According to the size of the package, 3-5 small packaging bags can be selected and packed into one large packaging bag. Through moderate extrusion, the large package is completed, the several small packages are wrapped as a whole, forming a firm combined packaging unit. The large packaging bag is made of woven material, which can effectively prevent the rock wool product from rebounding, loosening, and corner damage during transportation and storage, and improve the overall protection performance of the product. This way of putting several small packages into one large package not only retains the protective effect of the small packaging bag on the single rock wool product, but also realizes centralized storage through the large packaging bag, improves the space utilization rate of overall transportation and storage, and is convenient for subsequent batch handling and distribution.

[0036] To solve the problem of how to preliminarily compress the rock wool product and pack it into a small packaging bag, the following features are provided: The compression bin 1a is provided with parallel positioning baffles 1c, the spacing between the positioning baffles 1c is the same as the width of the discharge port 1a1, the compression bin 1a is slidably installed with a first upper pressing plate 1d above the positioning baffles 1c, the independent packaging machine 1 is provided at the top of the compression bin 1a with a second linear driver 1d1 for driving the first upper pressing plate 1d to move in the vertical direction, the compression bin 1a is slidably installed with a first push plate 1e at one end of the positioning baffles 1c opposite the discharge port 1a1, the first push plate 1e is the same width as the discharge port 1a1, and the independent packaging machine 1 further includes a third linear driver 1e1 for driving the first push plate 1e to move along the length direction of the positioning baffles 1c, and the first push plate 1e is used to push the compressed rock wool product in the positioning baffles 1c into the first duckbill plate 1b.

[0037] As Figures 3 to 7As shown, in this embodiment, the staff can place the rock wool products to be compressed between two positioning baffles 1c in the compression chamber 1a. Subsequently, the second linear driver 1d1 located at the top of the compression chamber 1a is started. The second linear driver 1d1 can be a cylinder or an oil cylinder, etc. The second linear driver 1d1 drives the first upper pressing plate 1d to move downwards to press the top of the rock wool products, causing them to be compressed downwards inside the positioning baffle 1c. After the compression is completed, the third linear driver 1e1 located at one end of the positioning baffle 1c is started. The third linear driver 1e1 can be a cylinder or an oil cylinder, etc. The third linear driver 1e1 pushes the first push plate 1e into the space between the two positioning baffles 1c, thereby pushing the compressed rock wool products inside the positioning baffle 1c towards the discharge port 1a1 and finally into the first duckbill plate 1b, where they are wrapped by the small packaging bags sleeved on the first duckbill plate 1b.

[0038] In order to make it convenient to sleeve the small packaging bags on the first duckbill plate 1b and ensure that the small packaging bags can be kept in a fully unfolded state on the first duckbill plate 1b, the following features are specifically set: The first duckbill plate 1b includes a first lower duckbill 1b1 in a "C" shape and a first upper duckbill 1b2. The first lower duckbill 1b1 is fixedly installed below the discharge port 1a1, and the first upper duckbill 1b2 is fixedly installed on the first lifting frame 1b3. The first lifting frame 1b3 is slidably installed above the discharge port 1a1. On the independent packaging machine 1, there is a first linear driver 1b4 for driving the first lifting frame 1b3 to move in the vertical direction.

[0039] As Figures 3 to 7 shown, in this embodiment, when the staff manually or uses an existing packaging material supply system to convey the pre-prepared small packaging bags to the first duckbill plate 1b, the first linear driver 1b4 drives the first lifting frame 1b3 to带动 the first upper duckbill 1b2 to move downwards, reducing the distance between the first upper duckbill 1b2 and the first lower duckbill 1b1, thereby facilitating the sleeving of the small packaging bags on the first duckbill plate 1b. When the sleeving of the small packaging bags is completed, the first linear driver 1b4 drives the first lifting frame 1b3 to带动 the first upper duckbill 1b2 to move upwards, and the first lower duckbill 1b1 and the first upper duckbill 1b2 fully撑开 the small packaging bags, facilitating the entry of the rock wool products into the small packaging bags. The first linear driver 1b4 can be a cylinder or an electric push rod, etc.

[0040] In order to solve the problem of how to put the small packaging bags into the large packaging bags, the following features are specifically set: The small accommodating cavity 3a is provided with a second push plate 3c at one end of the bag inlet 3a1 for pushing and squeezing the small packaging bag towards the bag outlet 3a2. The combined packaging machine 3 includes a fifth linear driver 3c1 for driving the second push plate 3c to move along the length direction of the small accommodating cavity 3a. Above the small accommodating cavity 3a, there is a second upper pressing plate 3d for pressing the small packaging bag downward. On one side of the small accommodating cavity 3a relative to the bag outlet 3a2, a third push plate 3e is slidably installed. The third push plate 3e has the same width as the bag outlet 3a2. The combined packaging machine 3 further includes a seventh linear driver 3e1 for driving the third push plate 3e to move along the length direction of the second duckbill plate 3b.

[0041] As Figures 8 to 15 shown, in this embodiment, the small packaging bags sealed by the heat sealing machine 2 are sequentially placed into the small accommodating cavity 3a of the combined packaging machine 3 and arranged along the width direction of the small packaging bags. The second push plate 3c on one side of the bag inlet 3a1 of the small accommodating cavity 3a pushes the small packaging bags in the small accommodating cavity 3a towards the bag outlet 3a2 and squeezes the small packaging bags. Subsequently, the second upper pressing plate 3d above the small accommodating cavity 3a is driven by the sixth linear driver 3d1 to move downward to cooperate with the second push plate 3c to compress the small packaging bags. Through gradient pressure control (i.e., pre-pressing at 0.2 MPa for 10 seconds and then rising to the target pressure), the overall height of the small packages is compressed by 5% - 15% to form a regular rectangular combination. Finally, the seventh linear driver 3e1 drives the third push plate 3e to move along the length direction of the small packaging bags, and pushes the rectangular combination formed by several small packaging bags into the large packaging bag sleeved on the second duckbill plate 3b to complete the combined packaging. The fifth linear driver 3c1 and the seventh linear driver 3e1 in this embodiment can be cylinders or oil cylinders, etc., and the sixth linear driver 3d1 can be a cylinder or a screw lifting device driven by a servo motor, etc.

[0042] In order to facilitate the sleeving of the large packaging bag on the second duckbill plate 3b and ensure that the large packaging bag can maintain a fully unfolded state on the second duckbill plate 3b, the following features are specifically set: The second duckbill plate 3b includes a second lower duckbill 3b1 in a "C" shape and a second upper duckbill 3b2. The second lower duckbill 3b1 is fixedly installed below the discharge port 1a1, and the second upper duckbill 3b2 is fixedly installed on the second lifting frame 3b3. The second lifting frame 3b3 is slidably installed above the bag outlet 3a2. The combined packaging machine 3 is provided with a fourth linear driver 3b4 for driving the second lifting frame 3b3 to move in the vertical direction.

[0043] As Figures 8 to 15As shown, in this embodiment, when the staff manually or by using the existing packaging material supply system transports the pre-prepared large packaging bag to the second duckbill plate 3b, the fourth linear driver 3b4 drives the second lifting frame 3b3 to drive the second upper duckbill 3b2 to move downward, reducing the distance between the second upper duckbill 3b2 and the second lower duckbill 3b1, thereby facilitating the large packaging bag to be sleeved on the second duckbill plate 3b. When the large packaging bag is completely sleeved on the second duckbill plate 3b, the fourth linear driver 3b4 drives the second lifting frame 3b3 to drive the second upper duckbill 3b2 to move upward, and the second lower duckbill 3b1 and the second upper duckbill 3b2 completely open the large packaging bag, facilitating the small packaging bag to enter the large packaging bag. The fourth linear driver 3b4 can be a gas cylinder or a servo motor driven screw rod lifting device.

[0044] In order to send the small packaging bag into the heat sealing machine 2 after the rock wool product enters the small packaging bag, the following features are specifically provided: A material moving conveyor belt 2a is arranged between the independent packaging machine 1 and the heat sealing machine 2, the material moving conveyor belt 2a is located below the first duckbill plate 1b of the independent packaging machine 1, and the material moving conveyor belt 2a transports the packaging bag at the first duckbill plate 1b to the input end of the heat sealing machine 2.

[0045] As shown in Figure 1 and Figure 2 In this embodiment, when the rock wool product is pushed into the small packaging bag, the staff can manually or by using the existing mechanical arm (not shown in the figure) to take the small packaging bag on the first duckbill plate 1b and place it on the material moving conveyor belt 2a, and the material moving conveyor belt 2a sends the small packaging bag into the input end of the heat sealing machine 2 for sealing operation.

[0046] In order to automatically send the small packaging bag sealed by the heat sealing machine 2 into the small package containing cavity 3a of the combined packaging machine 3, the following features are specifically provided: A clamping conveyor roller 2b is arranged between the heat sealing machine 2 and the combined packaging machine 3, the clamping conveyor roller 2b is respectively located on the upper and lower sides of the output end of the heat sealing machine 2, the output end of the clamping conveyor roller 2b is aligned with the package inlet 3a1 of the combined packaging machine 3, and the clamping conveyor roller 2b is used to clamp the small packaging bag sealed after the heat sealing machine 2 to move along the length direction of the clamping conveyor roller 2b into the small package containing cavity 3a of the combined packaging machine 3.

[0047] As shown in Figure 1 and Figure 2 In this embodiment, the small packaging bag sealed by the heat sealing machine 2 is clamped by the clamping conveyor roller 2b at the output end of the heat sealing machine 2, the clamping conveyor roller 2b rotates to convey the small packaging bag to move along the length direction of the clamping conveyor roller 2b to the package inlet 3a1 and finally into the small package containing cavity 3a.

[0048] In order to discharge the large packaging bag with the packaged small packaging bag, the following features are specifically provided: A second duckbill plate 3b of the combined packaging machine 3 is provided with a feeding conveyor 4 for feeding the large packaging bag.

[0049] As shown in Figure 1 and Figure 2 In this embodiment, the staff can manually or use the existing mechanical arm (not shown in the figure) to take the large packaging bag on the second duckbill plate 3b and place it on the feeding conveyor 4, and the feeding conveyor 4 will send the large packaging bag out for subsequent batch handling and distribution operations.

[0050] A compression packaging method for rock wool products is realized by using a compression packaging device for rock wool products, comprising the following steps: S1, obtain the rock wool product and pretreat its surface, and put the treated rock wool product into the compression chamber 1a of the independent packaging machine 1; S2, the independent packaging machine 1 pre-compresses the rock wool product in the compression chamber 1a, slowly applies pressure at 0.15-0.25 MPa, lasts for 40-50 seconds, makes the surface layer of rock wool preliminary dense, eliminates the loose space of the surface layer, controls the pressure rising rate at 0. independent packaging machine 1 MPa / s, then maintains the pre-compression pressure for 1 minute, then adjusts the target pressure according to the rock wool density, and the compression time is 1.5-2.5 minutes, to ensure that the density after compression is uniform and the density deviation is ≤5%; S3, a small packaging bag made of PE material is sleeved at the first duckbill plate 1b, the compressed rock wool product in the compression chamber 1a enters the small packaging bag through the first duckbill plate 1b, and then the small packaging bag is taken out and enters the heat sealing machine 2 for sealing; S4, the sealed small packaging bag is neatly placed in the small package containing cavity 3a of the combined packaging machine 3, a large packaging bag made of woven material is sleeved at the second duckbill plate 3b, and the small packaging bags are wrapped together by moderate extrusion and pushing into the second duckbill plate 3b to complete the large package packaging, forming a firm combined packaging unit.

[0051] In the present application, a gradient pressure mode of "pre-compression - pressure maintenance - deep compression" is adopted to facilitate the elastic recovery of rock wool fibers. The pre-compression stage is to slowly apply a pressure of 0.15-0.25 MPa for 40-50 seconds to preliminarily densify the surface layer of rock wool fibers and eliminate the loose space on the surface layer, with the pressure rising rate controlled at 0.1 MPa / s to avoid impact damage to the fibers. The pressure maintenance stage is to maintain the pre-compression pressure for 1 minute to preliminarily release the internal stress of rock wool and reduce the subsequent rebound. The deep compression stage is to adjust the target pressure according to the density of rock wool, with the compression time being 1.5-2.5 minutes to ensure that the density after compression is uniform and the density deviation is ≤5%. In actual use, the present application has the following data: select a rock wool board with a size of 1200x380x90 mm for surface pretreatment, which includes removing surface dust and loose fibers by air blowing and trimming the burrs and angles of the rock wool board (strip) using special trimming tools to ensure that the edges are straight. For rock wool with a water content exceeding the standard, it needs to be dried at low temperature to a water content of ≤3% to avoid internal moisture and mold after compression. The pretreated rock wool enters the packaging process within two hours to prevent secondary moisture absorption. Finally, check the quality of the rock wool board to ensure that the surface is flat and free of impurities. Adjust the independent packaging machine 1 to check whether each system is running normally, set the distance between the positioning baffle 1c in the compression bin 1a to 1220 mm, and the clamping edge to 38 mm. Place the rock wool board between the positioning baffles 1c, start the second linear actuator 1d1 to push the first upper compression plate 1d down, and pre-compress the rock wool board at a pressure of 0.2 MPa for 45 seconds. Gradually increase the compression plate pressure to 0.7 MPa and maintain this pressure for 2 minutes. During the compression process, the pressure sensor installed on the first upper compression plate 1d is used to monitor the pressure in real time to ensure that the pressure is stable. When the compression is complete, the worker manually or uses the packaging material supply system to deliver the pre-prepared polyethylene (PE) composite film with a thickness of 0.1 mm to the first duckbill plate 1b, which expands the PE composite film from the inside. After the rock wool board enters the PE composite film, it is removed and sent to the hot sealing machine 2. The hot sealing machine 2 uses a vacuum suction method to tightly adhere the packaging film to the surface of the rock wool board, and then uses a heat sealing device to seal the interface of the packaging film to form a sealed package. The compressed and packaged rock wool board is taken out of the device. After measurement, the volume of the compressed rock wool board is reduced to about 40% of the original (the compression rate is closely related to the density of the rock wool product), the packaging is firm, and the rock wool board structure is complete. Finally, select three small packaging bags and neatly stack them into the combined packaging machine 3. The second push plate 3c is pushed forward to the packaging outlet 3a2, the second upper compression plate 3d is pushed down to the set height, and the third push plate 3e pushes the product into the large packaging bag to complete the large package packaging.

[0052] To ensure that the compression rate of the rock wool product in the present compression method is sufficient for compression, the following features are specifically provided: The rock wool product in S1 is a low-binder rock wool product with a bulk density less than 50 kg / m3 and a binder content of 2% or less.

[0053] In the method of the embodiment, the rock wool product subjected to compression is a low-binder rock wool product with a bulk density less than 50 kg / m3 and a binder content of 2% or less, so that a stable packaging with a controllable compression ratio of 1.2-3 times can be achieved, and the performance and economy of lightweight rock wool in transportation and storage are ensured. When the rock wool is prepared, the core parameters of the air blower in the curing furnace are set according to the bulk density (<50 kg / m3) and width (1.2-2.4 m) of the rock wool: air speed 0.3-0.8 m / s (the lower the bulk density, the lower the air speed, to avoid blowing the fibers away), air pressure 500-800 Pa (to ensure that the airflow penetrates the fiber layer but does not damage the preliminary forming structure), and the airflow direction forms an angle of 30-45° with the fiber conveying direction (airflow from top to bottom is more likely to disperse the agglomerated fibers). In the pre-curing section, the binder has not yet completely cured, at which time the air blower is turned on (air speed 0.5-0.8 m / s), and airflow disturbance is used to make the fibers have a "three-dimensional cross-distribution"; after entering the main curing section, the binder begins to cure and set, and the air speed can be reduced to 0.3-0.5 m / s to avoid airflow impact on the formed fluffy structure; in the cooling section, the air blower is gradually turned off to ensure the stability of the fiber structure. This process can increase the thickness of the rock wool by 10%-30%, thereby facilitating application in the compression packaging method of the present application.

[0054] Working principle: The staff places the rock wool product in the compression chamber la of the independent packaging machine 1, and uses the independent packaging machine 1 to compress the rock wool product in the first step. When the compression is completed, the first duckbill plate lb opens the PE composite film from the inside, and then the compressed rock wool product enters the PE composite film through the first duckbill plate lb. After the rock wool product enters the PE composite film, it is taken out and sent into the hot press sealing machine 2. The hot press sealing machine 2 uses a vacuum suction method to tightly attach the packaging film to the surface of the rock wool product, and then uses a heat sealing device to seal the interface of the packaging film, forming a sealed package. The finally sealed small packaging bags are neatly placed in the small bag accommodating cavity 3a of the combined packaging machine 3, and the second duckbill plate 3b opens the large packaging bag from the inside. According to the size of the packaging, 3-5 small packaging bags can be selected to be packed into one large packaging bag, and the large package is completed by moderate extrusion, which wraps several small packages together to form a firm combined packaging unit.

[0055] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A compression packaging device for rock wool products, characterized in that, The application relates to a combined packaging machine, which comprises an independent packaging machine (1), a hot-press sealing machine (2) and a combined packaging machine (3), wherein the independent packaging machine (1) comprises a compression bin (1a) for compressing rock wool products, the compression bin (1a) is provided with a discharge port (1a1) at one end of the bottom, a first duckbill plate (1b) for sleeving a small packaging bag is arranged outside the discharge port (1a1), and the compressed rock wool products in the compression bin (1a) enter the small packaging bag through the first duckbill plate (1b); the hot-press sealing machine (2) is used for sealing the small packaging bag filled with the rock wool products; the combined packaging machine (3) comprises a small bag accommodating cavity (3a), the same side of the small bag accommodating cavity (3a) is provided with an in-bag port (3a1) and an out-bag port (3a2), the sealed small packaging bag enters the small bag accommodating cavity (3a) through the in-bag port (3a1) and is horizontally arranged in the width direction, the out-bag port (3a2) is provided with a second duckbill plate (3b) parallel to the length direction of the small packaging bag outside, the second duckbill plate (3b) is used for sleeving a large packaging bag, the width of the second duckbill plate (3b) is a multiple of the width of the first duckbill plate (1b), and a plurality of small packaging bags enter the large packaging bag sleeved on the second duckbill plate (3b) to be combined and packaged.

2. A compression packaging device for rock wool products according to claim 1, characterized in that, The bottom of the compression bin (1a) is provided with parallel positioning baffle plates (1c), the spacing between the positioning baffle plates (1c) is the same as the width of the discharge port (1a1), a first upper pressing plate (1d) located above the positioning baffle plates (1c) is slidably arranged in the compression bin (1a), the independent packaging machine (1) is provided with a second linear driver (1d1) for driving the first upper pressing plate (1d) to move in the vertical direction at the top of the compression bin (1a), a first pushing plate (1e) is slidably arranged in the compression bin (1a) at one end of the positioning baffle plates (1c) opposite to the discharge port (1a1), the first pushing plate (1e) is the same width as the discharge port (1a1), and the independent packaging machine (1) further comprises a third linear driver (1e1) for driving the first pushing plate (1e) to move along the length direction of the positioning baffle plates (1c), and the first pushing plate (1e) is used for pushing the compressed rock wool products in the positioning baffle plates (1c) into the first duckbill plate (1b).

3. A compression packaging device for rock wool products according to claim 2, characterized in that, The first duckbill plate (1b) comprises a first lower duckbill (1b1) and a first upper duckbill (1b2) in the shape of a "Fang", the first lower duckbill (1b1) is fixedly arranged below the discharge port (1a1), the first upper duckbill (1b2) is fixedly arranged on a first lifting frame (1b3), the first lifting frame (1b3) is slidably arranged above the discharge port (1a1), and the independent packaging machine (1) is provided with a first linear driver (1b4) for driving the first lifting frame (1b3) to move in the vertical direction.

4. A compression packaging device for rock wool products according to claim 1, characterized in that, The small bag accommodating cavity (3a) is provided with a second push plate (3c) at one end of the bag inlet (3a1) for pushing and extruding the small packaging bag to the other end of the bag outlet (3a2), and the combined packaging machine (3) comprises a fifth linear driver (3c1) for driving the second push plate (3c) to move along the length direction of the small bag accommodating cavity (3a); The small bag accommodating cavity (3a) is provided with a second upper pressing plate (3d) above for downward extrusion of the small packaging bag, and a third push plate (3e) is slidably installed on one side of the small bag accommodating cavity (3a) relative to the bag outlet (3a2), the third push plate (3e) is equal in width to the bag outlet (3a2), and the combined packaging machine (3) further comprises a seventh linear driver (3e1) for driving the third push plate (3e) to move along the length direction of the second duckbill plate (3b).

5. A compression packaging device for rock wool products according to claim 1, characterized in that, The second duckbill plate (3b) comprises a second lower duckbill (3b1) and a second upper duckbill (3b2) in the shape of " " type, the second lower duckbill (3b1) is fixedly installed below the discharge port (1a1), the second upper duckbill (3b2) is fixedly installed on the second lifting frame (3b3), the second lifting frame (3b3) is slidably installed above the bag outlet (3a2), and the combined packaging machine (3) is provided with a fourth linear driver (3b4) for driving the second lifting frame (3b3) to move in the vertical direction.

6. A compression packaging device for rock wool products according to claim 1, characterized in that, The independent packaging machine (1) and the hot press sealing machine (2) are provided with a material moving conveying belt (2a) between them, the material moving conveying belt (2a) is located below the first duckbill plate (1b) of the independent packaging machine (1), and the material moving conveying belt (2a) conveys the packaging bag at the first duckbill plate (1b) to the input end of the hot press sealing machine (2).

7. A compression packaging device for rock wool products according to claim 1, characterized in that, The hot press sealing machine (2) and the combined packaging machine (3) are provided with clamping conveying rollers (2b) between them, the clamping conveying rollers (2b) are respectively located on the upper and lower sides of the output end of the hot press sealing machine (2), the output end of the clamping conveying rollers (2b) is aligned with the bag inlet (3a1) of the combined packaging machine (3), and the clamping conveying rollers (2b) are used for clamping the small packaging bag after sealing to move along the length direction of the clamping conveying rollers (2b) into the small bag accommodating cavity (3a) of the combined packaging machine (3).

8. A compression packaging device for rock wool products according to claim 1, characterized in that, The second duckbill plate (3b) of the combined packaging machine (3) is provided with a discharging conveying belt (4) for conveying large packaging bags.

9. A method for the compression packaging of rock wool products, implemented using a compression packaging device for rock wool products according to any one of claims 1-8, characterized in that, The method comprises the following steps: S1, obtain the rock wool product and pretreat the surface thereof, and place the treated rock wool product into the compression bin (1a) of the independent packaging machine (1); S2, the independent packaging machine (1) pre-compresses the rock wool product in the compression bin (1a) at a pressure of 0.15-0.25 MPa, slowly applies pressure for 40-50 seconds, preliminarily densifies the surface layer fibers of the rock wool, eliminates the loose space of the surface layer, controls the pressure rising rate at 0.01 MPa / s, then maintains the pre-compression pressure for 1 minute, then adjusts the target pressure according to the rock wool density, and compresses for 1.5-2.5 minutes, to ensure that the density after compression is uniform and the density deviation is less than or equal to 5%. S3, a small packaging bag made of PE material is sleeved at the first duckbill plate (1b), the compressed rock wool product in the compression bin (1a) enters the small packaging bag through the first duckbill plate (1b), and then the small packaging bag is taken out and enters the heat sealing machine (2) to be sealed; S4, the sealed small packaging bags are neatly placed in the small bag accommodating cavity (3a) of the combined packaging machine (3), a large packaging bag made of woven material is sleeved at the second duckbill plate (3b), and the small packaging bags are wrapped as a whole by being moderately extruded and pushed into the second duckbill plate (3b) to complete the large packaging, so that a firm combined packaging unit is formed.

10. A method of compression packaging of rock wool products according to claim 9, characterized in that, The rock wool product in S1 is a low-binder rock wool product with a bulk density less than 50 kg / m³ and a binder content of 2% or less.

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