A roller dryer

Abstract

The present invention discloses a roller dryer, comprising a base, a connecting bracket, a drying roller, a feeding pipe, a movable scraping mechanism, and a synchronous switching component. The present invention scrapes the material by abutting the scraper plate on the upper side of the turning column against one side of the drying roller. When the scraper plate is worn or deformed, the bottom screw is rotated to drive two separation blocks to move relatively away from each other, so that the scraper plate on the upper side of the turning column is separated from the drying roller. Then, the synchronous switching component is used to synchronously drive the two turning columns to turn up and down, thereby causing the scraper plates on the upper and lower sides of the turning columns to turn up and down alternately, so that a new scraper plate is replaced upward, and finally, the bottom screw is rotated to drive the two separation blocks to move closer to each other, and finally the newly replaced scraper plate is caused to abut against the side of the drying roller, thereby realizing rapid switching for scraping.

Description

Technical Field

[0001] The invention relates to a roller dryer. Background Art

[0002] The roller dryer is a continuously operated equipment that dries the liquid material attached to the outer wall of the roller by rotating the roller in a heat conduction manner. It is mainly used for drying foods such as nutritious cereals, infant rice cereals, α starch, potato flour, etc. produced by the wet drying process, and extruding and drying foods in flaky form. The formed flaky materials are scraped off by a scraper abutting against one side of the roller outer wall, thus realizing the operation process of the roller dryer. However, when the scraper is scraped by the scraper outside the roller dryer, the scraper is in long-term contact with the outer side of the roller and is in a high-temperature friction state for a long time. As a result, the end face of the scraper is easily deformed or damaged after a period of use, so it is necessary to stop the machine for maintenance and replace the scraper. The scraper is generally installed by tightening the screw and nut, which is cumbersome and time-consuming to disassemble. It greatly affects the operating efficiency when production capacity is urgently needed. Therefore, it is necessary to improve the replacement efficiency of the scraper. Summary of the Invention

[0003] In view of the above-mentioned deficiencies in the prior art, the present invention solves the problem of providing a roller dryer with efficient and convenient scraper replacement.

[0004] In order to solve the above problems, the technical solutions adopted by the present invention are as follows:

[0005] A roller dryer comprises a base, a connecting bracket, a drying roller, a feeding pipe, a movable scraping mechanism, and a synchronous switching component; a connecting bracket is respectively installed at the front and rear ends of the upper end of the base, and a positioning side plate is provided between one side of the two connecting brackets; the drying rollers are provided with two, the two drying rollers are arranged opposite to each other on the left and right, the two drying rollers are rotatably installed between the connecting brackets, and a feeding pipe is installed above the two drying rollers; the movable scraping mechanism is installed on the lower sides of the two drying rollers; the movable scraping mechanism comprises a moving motor, a bottom screw, a separation block, a turning column, and a scraping plate; the positioning side plate A movable motor is installed on the inner side of the plate; a bottom screw is connected to the inner side of the movable motor through a rotating shaft; a separation block is screwed on both sides of the bottom screw; a turning column is rotated and clamped on the inner side of the separation block; a scraper plate is installed on the upper and lower sides of the turning column; the bottom screw rotates to drive the two separation blocks to move relative to each other, and drives the scraper plate located on the upper side of the turning column to abut against the outer side of the drying roller; the synchronous switching component is installed on the movable scraper mechanism, and the synchronous switching component synchronously drives the two turning columns to turn up and down, and drives the scraper plates on the upper and lower sides of the turning column to turn up and down alternately.

[0006] The lifting mechanism is a pair of fixedly mounted on two ends of the lifting link, and the fixing mechanism can be effectively prevented from slipping and sliding relative to each other, and the fixing mechanism can be effectively prevented from slipping and sliding relative to each other.

[0007] Furthermore, the telescopic component is a lifting cylinder; the lifting shaft at the upper end of the lifting cylinder is connected to the lower side of the upper guide plate.

[0008] Furthermore, a strip-shaped slot is provided on the inner side of the separation block; a sliding tooth is provided on the inner side of the lifting drive plate; and the sliding tooth slides up and down to be engaged with the strip-shaped slot.

[0009] Furthermore, the end of the scraper plate is wedge-shaped.

[0010] Furthermore, a positioning block is provided on the connecting bracket; the bottom screw is rotatably engaged with the inner side of the positioning block.

[0011] Furthermore, the lower end of the feeding pipe is evenly provided with multiple discharge heads from front to back; a storage tank is provided on the outer side of the positioning side plate; an inlet pipe is provided on one side of the upper end of the storage tank; and the other side of the upper end of the storage tank is connected to the middle of the feeding pipe through a conduit.

[0012] The beneficial effects of the present invention are as follows:

[0013] 1. The present invention scrapes the material by abutting the scraper plate on the upper side of the turning column against one side of the drying roller. When the scraper plate is worn or deformed, the bottom screw is rotated to drive the two separation blocks to move relatively away from each other, so that the scraper plate on the upper side of the turning column is separated from the drying roller. Then, the two turning columns are synchronously driven to turn up and down by the synchronous switching component, and the scraper plates on the upper and lower sides of the turning column are alternately turned up and down, so that the new scraper plate is replaced upward, and finally the bottom screw is rotated to drive the two separation blocks to move closer to each other, and finally the newly replaced scraper plate is abutted against the side of the drying roller, thereby realizing rapid switching for scraping.

[0014] 2. The present invention drives the upper guide plate and the upper guide sleeve plate to move upward at the same time through the telescopic component, and then drives the two lifting drive plates to move upward. In this way, the lifting drive plates engage the flip block to rotate, and the rotation of the flip block drives the flip column to flip up and down, so that the scraper plates on the upper and lower sides of the flip column can be swapped, which is convenient for operation.

[0015] 3. In order to synchronously drive the two flip columns to flip up and down, the present invention designs two lifting drive plates that respectively engage with the flip block gears on the flip columns, and at the same time, the lower ends of the two lifting drive plates are connected to the upper guide plate and the upper end of the upper guide sleeve that can slide horizontally, so that the two lifting drive plates can follow their respective separation blocks to move horizontally, and at the same time, the two lifting drive plates can be cooperatively driven by the telescopic parts to keep them in the vertical position. In order to facilitate the installation of the telescopic parts and the stable relative movement of the two separation blocks, the lower guide plate and the lower guide sleeve that can slide horizontally are set at the lower ends of the two separation blocks. This not only realizes the cooperative driving of the two flip columns by a telescopic part, but also ensures the stability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 For the present invention Figure 1 Schematic diagram of the partially enlarged structure.

[0018] Figure 3 For the present invention Figure 2 Schematic diagram of the structure in which the two separated blocks are relatively far away.

[0019] Figure 4 This is a schematic structural diagram of the present invention after the scraper plates on the upper and lower sides of the turning column rotate.

[0020] Figure 5 It is a schematic structural diagram of the separation block, bottom screw, turning column, turning block, scraper plate, lifting drive plate, upper guide plate and upper guide sleeve plate in a top view of the present invention.

[0021] Figure 6 For the present invention Figure 5 Schematic diagram of the local enlarged structure.

[0022] Figure 7 It is a side structural schematic diagram of the turning column 54 and the scraper plate 55 of the present invention. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below with reference to the accompanying drawings.

[0024] like Figures 1 to 7As shown, a roller dryer includes a base 1, a connecting bracket 2, a drying roller 3, a feeding pipe 4, a movable scraper mechanism 5, and a synchronous switching component 6; a connecting bracket 2 is installed at the front and rear ends of the upper end of the base 1, and a positioning side plate 21 is provided between one side of the two connecting brackets 2; there are two drying rollers 3, the two drying rollers 3 are arranged opposite to each other on the left and right, the two drying rollers 3 are rotatably installed between the connecting brackets 2, and a feeding pipe 4 is installed above the two drying rollers 3; the movable scraper mechanism 5 is installed on the lower side of the two drying rollers 3; the movable scraper mechanism 5 includes a moving motor 51, a bottom screw 52, ​​a separation block 53, a turning column 54, and a scraper plate 55; the positioning side plate 21 A moving motor 51 is installed on the inner side; a bottom screw 52 is connected to the inner side of the moving motor 51 through a rotating shaft 511; a separation block 53 is screwed on both sides of the bottom screw 52; a turning column 54 is rotated and clamped on the inner side of the separation block 53; a scraper 55 is installed on the upper and lower sides of the turning column 54; the bottom screw 52 rotates to drive the two separation blocks 53 to move relative to each other, and drives the scraper located on the upper side of the turning column 54 to abut against the outer side of the drying roller 3; the synchronous switching component 6 is installed on the movable scraper mechanism 5, and the synchronous switching component 6 synchronously drives the two turning columns 54 to turn up and down, and drives the scraper plates 55 on the upper and lower sides of the turning column 54 to turn up and down alternately.

[0025] like Figures 1 to 7As shown, in order to coordinately drive the two flip columns 54 to flip up and down, thereby switching the positions of the scraper plates 55 on the upper and lower sides of the flip columns 54, it is further preferred that the synchronous switching assembly 6 includes a lifting drive plate 61, a flip block 62, an upper guide plate 63, an upper guide sleeve plate 64, a lower guide plate 65, a lower guide sleeve plate 66, and a telescopic component 67; a flip block 62 is respectively sleeved on the flip column 54; one side of the flip block 62 is respectively engaged with a lifting drive plate 61, the lower end of one lifting drive plate 61 is connected to the upper guide plate 63, and the lower end of the other lifting drive plate 61 is connected to the upper guide sleeve plate 64, and the upper The inner end of the upper guide plate 63 is slidably engaged with the inner end of the upper guide sleeve 64; the inner side of the lifting drive plate 61 is slidably engaged with the inner side of the separation block 53. Of the two separation blocks 53, a lower guide plate 65 is mounted on the lower side of one separation block 53, and a lower guide sleeve 66 is mounted on the lower side of the other separation block 53. The inner end of the lower guide plate 65 is slidably engaged with the inner end of the lower guide sleeve 66. The upper guide plate 63 and the upper guide sleeve 64 are located above the lower guide plate 65 and the lower guide sleeve 66. The telescopic component 67 is mounted on the lower guide plate 65, and the upper part of the telescopic component 67 is connected to the lower side of the upper guide plate 63. Furthermore, the telescopic component 67 is a lifting cylinder; the lifting shaft at the upper end of the lifting cylinder is connected to the lower side of the upper guide plate 63. Furthermore, a strip-shaped slot 531 is provided on the inner side of the separation block 53 ; a sliding tooth 611 is provided on the inner side of the lifting drive plate 61 ; the sliding tooth 611 slides up and down and is engaged with the strip-shaped slot 531 .

[0026] like Figures 1 to 7 As shown, to facilitate scraping, the end of the scraper plate 55 is further configured in a wedge-shaped structure. Furthermore, a positioning block 22 is provided on the connecting bracket 2; the bottom screw 52 is rotatably engaged with the inner side of the positioning block 22. Furthermore, the lower end of the feed pipe 4 is evenly spaced from front to back with multiple discharge heads 41; a storage tank is provided on the outer side of the positioning side plate 21; a feed pipe is provided on one side of the upper end of the storage tank; and the other side of the upper end of the storage tank is connected to the center of the feed pipe 4 via a conduit.

[0027] The present invention scrapes the material by the scraper plate 55 on the upper side of the flip column 54 abutting against one side of the drying roller 3. When the scraper plate 55 is worn or deformed, the bottom screw 52 is used to rotate and drive the two separation blocks 53 to move relatively away from each other, so that the scraper plate 55 on the upper side of the flip column 54 is separated from the drying roller 3. Then, the two flip columns 54 are synchronously driven to flip up and down by the synchronous switching component 6, so that the scraper plates 55 on the upper and lower sides of the flip column 54 are alternately flipped up and down, so that the new scraper plate 55 is replaced upward, and finally the bottom screw 52 is used to rotate and drive the two separation blocks 53 to move closer to each other, and finally the newly replaced scraper plate 55 abuts against the side of the drying roller 3, realizing rapid switching for scraping.

[0028] The present invention drives the upper guide plate 63 and the upper guide sleeve plate 64 to move upward at the same time through the telescopic component 67, thereby driving the two lifting drive plates 61 to move upward. In this way, the lifting drive plate 61 engages the flip block 62 to rotate, and the flip block 62 rotates to drive the flip column 54 to flip up and down, so that the scraper plates 55 on the upper and lower sides of the flip column 54 can be swapped, which is convenient for operation.

[0029] In order to synchronously drive the two flip columns 54 to flip up and down, the present invention designs two lifting drive plates 61 to engage with the flip blocks 62 on the flip columns 54 respectively, and at the same time, the lower ends of the two lifting drive plates 61 are connected to the upper guide plates 63 and the upper ends of the upper guide sleeves 64 that can slide horizontally, so that the two lifting drive plates 61 can follow their respective separation blocks 53 to move horizontally, and at the same time, the two lifting drive plates 61 can be kept in the vertical position and can be cooperatively driven by the telescopic parts 67. In order to facilitate the installation of the telescopic parts 67 and the stable relative movement of the two separation blocks 53, the lower ends of the two separation blocks 53 are provided with lower guide plates 65 and lower guide sleeves 66 that can slide horizontally. This not only realizes the cooperative driving of the two flip columns 54 by a telescopic part 67, but also ensures the stability of the structure.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A roller dryer, characterized in that: Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion. The synchronous switching component synchronously drives the two turning columns to turn up and down, and drives the scraper plates on the upper and lower sides of the turning columns to turn up and down alternately; the synchronous switching component includes a lifting drive plate, a turning block, an upper guide plate, an upper guide sleeve plate, a lower guide plate, a lower guide sleeve plate, and a telescopic component; a turning block is respectively sleeved and installed on the turning columns; one side of the turning block is respectively engaged with a lifting drive plate, the lower end of one lifting drive plate is connected to the upper guide plate, and the lower end of the other lifting drive plate is connected to the upper guide sleeve plate, and the upper guide plate The inner end is slidably connected with the inner end of the upper guide sleeve; the inner side of the lifting drive plate slides up and down and is clamped on the inner side of the separation block; among the two separation blocks, the lower guide plate is installed on the lower side of one separation block, and the lower guide sleeve is installed on the lower side of the other separation block, and the inner end of the lower guide plate is slidably connected with the inner end of the lower guide sleeve; the upper guide plate and the upper guide sleeve are located above the lower guide plate and the lower guide sleeve; the telescopic component is installed on the lower guide plate, and the upper part of the telescopic component is connected to the lower side of the upper guide plate.

2. The drum dryer according to claim 1, characterized in that The telescopic component is a lifting cylinder; the lifting shaft at the upper end of the lifting cylinder is connected to the lower side of the upper guide plate.

3. The drum dryer according to claim 1, characterized in that A strip-shaped slot is provided on the inner side of the separation block; a sliding tooth is provided on the inner side of the lifting drive plate; and the sliding tooth slides up and down to be engaged with the strip-shaped slot.

4. The drum dryer according to claim 1, characterized in that The end of the scraper plate is in a wedge-shaped structure.

5. The drum dryer according to claim 1, characterized in that A positioning block is provided on the connecting bracket; the bottom screw is rotatably clamped on the inner side of the positioning block.

6. The drum dryer according to claim 1, characterized in that The lower end of the feeding pipe is evenly provided with multiple discharge heads from front to back; a storage tank is provided on the outer side of the positioning side plate; a feeding pipe is provided on one side of the upper end of the storage tank; the other side of the upper end of the storage tank is connected to the middle of the feeding pipe through a conduit.

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