阅读说明：本技术 一种压力可调的瓦楞纸板压平装置 (Corrugated board flattening device with adjustable pressure ) 是由 林悦敏 于 2019-10-15 设计创作，主要内容包括：本发明属于瓦楞纸加工技术领域,具体涉及一种压力可调的瓦楞纸板压平装置,包括机架,所述机架上设有左传送架、压辊支架、右传送架,所述压辊支架装设两组下压辊,压辊支架顶部与下压辊对应的位置装设升降控制装置,升降控制装置下端依次连接连接杆、上连接板、弹簧和下连接板,下连接板两侧下端设有定位板,两组定位板之间分别设置上压辊一、上压辊二。本发明相比现有技术具有以下优点：本发明中瓦楞纸板压平装置根据瓦楞纸板的厚度及性能对上压辊和下压辊之间的压力进行调节,满足不同的压平需求；另外还能根据实际需求调节上压辊二与下压辊之间的压力,能够在节能的条件下完成对瓦楞纸板的压平。(The invention belongs to the technical field of corrugated paper processing, and particularly relates to a corrugated paper plate flattening device with adjustable pressure, which comprises a rack, wherein a left conveying frame, a compression roller support and a right conveying frame are arranged on the rack, two groups of lower compression rollers are arranged on the compression roller support, a lifting control device is arranged at the top of the compression roller support and at the position corresponding to the lower compression rollers, the lower end of the lifting control device is sequentially connected with a connecting rod, an upper connecting plate, a spring and a lower connecting plate, positioning plates are arranged at the lower ends of two sides of the lower connecting plate, and an upper compression roller I and an upper compression roller. Compared with the prior art, the invention has the following advantages: the corrugated board flattening device adjusts the pressure between the upper pressing roller and the lower pressing roller according to the thickness and the performance of the corrugated board, and meets different flattening requirements; in addition, the pressure between the upper press roller II and the lower press roller can be adjusted according to actual requirements, and the corrugated board can be flattened under the condition of energy conservation.)

1. A corrugated board flattening device with adjustable pressure comprises a rack and is characterized in that a left conveying frame, a compression roller support and a right conveying frame are arranged on the rack, a conveying belt is arranged on the left conveying frame, spraying cover bodies are arranged on the frame bodies on two sides of the conveying belt on the right side of the left conveying frame, a thermal spraying device and a control system of the thermal spraying device are arranged in the spraying cover bodies, a flow divider is arranged below the thermal spraying device, and spray heads are uniformly distributed at the lower end of the flow divider;

two groups of lower compression rollers are arranged at the positions with the same height as the compression roller bracket and the conveying belt, a lifting control device is arranged at the position, corresponding to the lower compression rollers, of the top of the compression roller bracket, a connecting rod is arranged at the lower end of the lifting control device, the lower end of the connecting rod is connected with an upper connecting plate, and the lifting control device controls the upper connecting plate to move in the vertical direction; the upper connecting plate is connected with the lower connecting plate through uniformly distributed springs, positioning plates are arranged at the lower ends of two sides of the lower connecting plate, a vertical guide groove is formed in one side of the compression roller support, positioning rods penetrating through the vertical guide groove are arranged on the positioning plates, and an upper compression roller I and an upper compression roller II are respectively arranged between the two groups of positioning plates; the upper press roll I, the upper press roll II and the lower press roll are respectively driven by independent motors;

the right conveying frame is provided with a net chain type conveying belt, an infrared drying tunnel is arranged at the position, close to the left side, of the net chain type conveying belt, and the left side and the right side of the far infrared drying tunnel can be used for corrugated boards to pass through;

wherein the thermal spraying device is used for spraying hot water with the temperature not lower than 60 ℃; the upper press roller I and the upper press roller II are both electromagnetic heating rollers.

2. A pressure-adjustable corrugated board flattening apparatus as claimed in claim 1, wherein the pressure between the upper press roll or the upper press roll ii and the lower press roll is adjusted by adjusting the position of the upper connecting plate in the vertical direction before use.

3. The corrugated board flattening apparatus with adjustable pressure of claim 2, wherein the pressure intensity between the first upper pressing roll and the lower pressing roll is F1, the pressure intensity between the second upper pressing roll and the lower pressing roll is F2, and F1 is less than or equal to F2.

4. A pressure-adjustable corrugated board flattening apparatus as claimed in claim 2, wherein the pressure between the first upper press roll and the lower press roll is F1, the pressure between the second upper press roll and the lower press roll is F2, and F1 > F2.

5. The pressure adjustable corrugated board flattening apparatus as claimed in claim 1, wherein the spraying hood has rectangular slots at the lower ends of the left and right sides for allowing corrugated boards to pass through.

6. A pressure-adjustable corrugated board flattening apparatus as claimed in claim 1 wherein said thermal spraying means has a spray pressure of from 0.2 to 0.6 MPa.

7. The pressure adjustable corrugated board flattening apparatus of claim 1, wherein the far infrared drying tunnel has a heat source temperature of 60-100 ℃, and the distance from the heat source to the upper surface of the mesh chain conveyor belt is 4-8 cm.

8. A pressure adjustable corrugated board flattening apparatus as claimed in claim 1, wherein the housing of said electromagnetically heated roll has a thermal conductivity of 115-151.7W/(m-K).

Technical Field

The invention belongs to the technical field of corrugated paper processing, and particularly relates to a corrugated paper plate flattening device with adjustable pressure.

Background

Corrugated paper box is a most widely used packaging product, and is made by die cutting, impressing, nailing or gluing corrugated paper board, the corrugated paper board is formed by pasting and bonding a liner paper and a corrugated paper formed by processing corrugated rollers, the corrugated paper board needs to be dried for a period of time after being pasted and bonded to enable the adhesive to be solidified, the existing drying device of the corrugated paper board is directly placed on the ground, the phenomena of curling and cracking of the upper layer of the paper board are caused due to no pressure, the bending of the corrugated paper board can influence the compressive strength of the corrugated paper board, the subsequent procedures of slotting, printing and the like, defective products are easy to produce, a spraying and flattening device of the corrugated paper board is disclosed in 201810907800X in the prior art, a spraying device is arranged on the left side of a compression roller, a smell scattering box is arranged on the right side of the compression roller, the flattening of different corrugated paper thicknesses is realized by adjusting the distance between the compression rollers, although the problem of bending, if the distance is too small, the problem of excessively compressing or even crushing the corrugated board can occur, and if the distance is too large, flattening bending can not be realized, so that the flattening effect after quick spraying is found in practical application and is satisfactory, and in order to improve the flattening effect, the flattening device needs to be further adjusted and improved.

Disclosure of Invention

The invention aims to provide a corrugated paper board flattening device with adjustable pressure, aiming at the problem that the flattening effect cannot be ensured because the pressure between the compression rollers is fixed in the existing corrugated paper flattening device.

The invention is realized by the following technical scheme: a corrugated board flattening device with adjustable pressure comprises a rack, wherein a left conveying frame, a compression roller support and a right conveying frame are arranged on the rack, a conveying belt is arranged on the left conveying frame, spraying cover bodies are arranged on the frame bodies on the two sides of the conveying belt on the right side of the left conveying frame, a thermal spraying device and a control system of the thermal spraying device are arranged in the spraying cover bodies, a flow divider is arranged below the thermal spraying device, and spray heads are uniformly distributed at the lower end of the flow divider;

two groups of lower compression rollers are arranged at the positions with the same height as the compression roller bracket and the conveying belt, a lifting control device is arranged at the position, corresponding to the lower compression rollers, of the top of the compression roller bracket, a connecting rod is arranged at the lower end of the lifting control device, the lower end of the connecting rod is connected with an upper connecting plate, and the lifting control device controls the upper connecting plate to move in the vertical direction; the upper connecting plate is connected with the lower connecting plate through uniformly distributed springs, positioning plates are arranged at the lower ends of two sides of the lower connecting plate, a vertical guide groove is formed in one side of the compression roller support, positioning rods penetrating through the vertical guide groove are arranged on the positioning plates, and an upper compression roller I and an upper compression roller II are respectively arranged between the two groups of positioning plates; the upper press roll I, the upper press roll II and the lower press roll are respectively driven by independent motors;

the right conveying frame is provided with a net chain type conveying belt, an infrared drying tunnel is arranged at the position, close to the left side, of the net chain type conveying belt, and the left side and the right side of the far infrared drying tunnel can be used for corrugated boards to pass through;

wherein, the hot spraying device is used for spraying hot water with the temperature not lower than 60 ℃ so as to keep the surface of the corrugated board moist; the upper press roller I and the upper press roller II are both electromagnetic heating rollers, the temperature of the electromagnetic heating rollers is set manually and is set to be 80-95 ℃, and the surfaces with creases or bends can be flattened more effectively and shaped to a certain degree.

Specifically, before the device is used, the pressure intensity between the first upper pressure roller or the second upper pressure roller and the lower pressure roller is adjusted by adjusting the position of the upper connecting plate on the vertical height; determining the corresponding relation between the position of the upper connecting plate and the pressure intensity by arranging a pressure sensor and adjusting the position of the upper connecting plate, and re-measuring and correcting after 300 hours of use;

the pressure intensity between the upper press roll I and the lower press roll is F1, the pressure intensity between the upper press roll II and the lower press roll is F2, F1 is less than or equal to F2, and the upper press roll II can further perform the flattening function;

the pressure intensity between the upper pressing roller I and the lower pressing roller is F1, the pressure intensity between the upper pressing roller II and the lower pressing roller is F2, F1 is greater than F2, at the moment, the upper pressing roller II mainly plays a role in transmission, and the upper pressing roller II is not heated.

Rectangular open slots are formed in the lower ends of the left side and the right side of the spraying cover body, and corrugated boards can penetrate through the rectangular open slots; the arrangement of the spraying cover body can play a role in protecting the shunt and the spray head.

Specifically, the spraying pressure of the thermal spraying device is 0.2-0.6MPa, and a proper amount of water mist can be sprayed within the pressure range, so that the surface of the corrugated board is uniformly wetted by one layer.

Specifically, the temperature of a heat source of the far infrared drying tunnel is 60-100 ℃, the distance between the heat source and the upper surface of the net chain type conveying belt is 4-8cm, and the corrugated board can be quickly dried by effectively utilizing the heat source, so that the corrugated board is kept dry.

Specifically, the heat conductivity coefficient of the shell of the electromagnetic heating roller is 115-151.7W/(m.K), the heat conduction effect is good, and the waste of heat energy of the electromagnetic heating roller can be reduced; the shell material is brass with the mark of H80, and the heat conductivity coefficient is 141.7W/(m.K).

Compared with the prior art, the invention has the following advantages: the corrugated board flattening device is provided with the two groups of pressing rollers, the spring assembly is arranged above the upper pressing roller, so that elastic pressure is formed between the upper pressing roller and the lower pressing roller, proper pressure intensity is set, and the corrugated board can be effectively flattened under the condition of not damaging the corrugated board by matching with spray treatment of the thermal spray device; the pressure between the upper compression roller and the lower compression roller is adjusted according to the thickness and the performance of the corrugated board, so that different flattening requirements are met; in addition, the pressure between the upper press roller II and the lower press roller can be adjusted according to actual requirements, and the corrugated board can be flattened under the condition of energy conservation.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a side view of the roll holder.

Fig. 3 is a side view of the spray enclosure.

The device comprises a machine frame 1, a left conveying frame 2, a conveying belt 21, a spraying cover 22, a rectangular groove 221, a flow divider 23, a spray head 231, a pressure roller support 3, a lower pressure roller 30, an upper pressure roller I31, an upper pressure roller II 32, a lower connecting plate 33, a positioning plate 331, a vertical guide groove 332, a positioning rod 333, a spring 34, an upper connecting plate 36, a connecting rod 37, a lifting control device 38, a motor 39, a right conveying frame 4, a mesh chain type conveying belt 41 and an infrared drying tunnel 42.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1, a corrugated cardboard flattening device with adjustable pressure comprises a frame 1, wherein a left conveying frame 2, a compression roller support 3 and a right conveying frame 4 are arranged on the frame 1, a conveying belt 31 is arranged on the left conveying frame 3, a spraying cover 22 is arranged on the frame body on the two sides of the conveying belt on the right side of the left conveying frame 2, a thermal spraying device and a control system thereof are arranged in the spraying cover 22, a flow divider 23 is arranged below the thermal spraying device, and spray heads 231 are uniformly distributed at the lower end of the flow divider 23; rectangular open slots 221 are formed in the lower ends of the left side and the right side of the spraying cover body 22, and corrugated boards can penetrate through the rectangular open slots; the arrangement of the spraying cover body 22 can play a role in protecting the diverter and the spray head; the spraying pressure of the thermal spraying device is 0.2-0.6MPa, and a proper amount of water mist can be sprayed within the pressure range, so that the surface of the corrugated board is uniformly wetted by one layer;

two groups of lower press rolls 30 are arranged at the positions of the press roll bracket 3, which are equal in height to the conveyor belt 2, a lifting control device 38 is arranged at the position, corresponding to the lower press rolls 30, of the top of the press roll bracket 3, a connecting rod 37 is arranged at the lower end of the lifting control device 38, the lower end of the connecting rod 37 is connected with an upper connecting plate 36, and the lifting control device 38 controls the upper connecting plate 36 to move in the vertical direction; the upper connecting plate 36 is connected with the lower connecting plate 33 through uniformly distributed springs 34, the lower ends of two sides of the lower connecting plate 33 are provided with positioning plates 331, one side of the press roller bracket 3 is provided with a vertical guide groove 332, the positioning plates 331 are provided with positioning rods 333 which penetrate through the vertical guide grooves 332, and an upper press roller 31 and an upper press roller 32 are respectively arranged between the two groups of positioning plates 331; the upper press roll I31, the upper press roll II 32 and the lower press roll 30 are respectively driven by independent motors 39;

a net chain type conveying belt 41 is arranged on the right conveying frame 4, an infrared drying tunnel 42 is arranged at the position, close to the left side, of the net chain type conveying belt 41, and the left side and the right side of the far infrared drying tunnel 42 can be used for corrugated paper boards to pass through;

the temperature of a heat source of the far infrared drying tunnel is 60-100 ℃, the distance between the heat source and the upper surface of the net chain type conveying belt is 4-8cm, and the corrugated board can be quickly dried by effectively utilizing the heat source, so that the corrugated board is kept dry;

wherein, the hot spraying device is used for spraying hot water with the temperature not lower than 60 ℃ so as to keep the surface of the corrugated board moist; the first upper pressing roller 31 and the second upper pressing roller 32 are both electromagnetic heating rollers, the temperature of the electromagnetic heating rollers is manually set to be 80-95 ℃, the heat conductivity coefficient of the shell of the electromagnetic heating roller is 115-151.7W/(m.K), the heat conduction effect is good, and the heat energy waste of the electromagnetic heating rollers can be reduced; the shell material is brass with the mark of H80, and the heat conductivity coefficient is 141.7W/(m.K).

Before the device is used, the pressure intensity between the upper press roll I or the upper press roll II and the lower press roll is adjusted by adjusting the position of the upper connecting plate on the vertical height; and determining the corresponding relation between the position of the upper connecting plate and the pressure intensity by arranging a pressure sensor and adjusting the position of the upper connecting plate, measuring and correcting again after 300 hours of use, and setting the pressure intensity between the first upper pressing roller and the lower pressing roller to be F1 and the pressure intensity between the second upper pressing roller and the lower pressing roller to be F2.