Material stripping device of drying machine

Abstract

The utility model discloses a material raking device of a drying machine, and belongs to the field of drying machines. Comprising a conveyor which is provided with two sets of supporting frames. The material raking assembly comprises a material raking roller, and the material raking roller is provided with a roller shaft; the adjusting assembly comprises a moving unit, the moving unit comprises a first adjusting frame installed on the side face of the supporting frame, and a first sliding seat in transmission connection through a lead screw is slidably installed in the first adjusting frame; the sliding unit comprises a second adjusting frame installed on the side face of the supporting frame, and the second adjusting frame is slidably connected with a second sliding seat through two sets of guide rods; and the reciprocating assembly comprises a third angle plate, the third angle plate is connected with the second sliding seat through a connecting rod, and a driving part is installed on the third angle plate. According to the material raking device of the drying machine, movement of the adjusting assembly is matched with the sliding unit, the crank drives the lead screw and the guide rod to slide, and the position of the material raking roller is flexibly adjusted; the reciprocating assembly drives the material scraping roller to horizontally scrape materials in a reciprocating mode, wet materials are efficiently spread, and the drying efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of dryer technology, and in particular to a dryer material feeding device. Background Technology

[0002] Belt dryers are a typical example of continuous drying equipment, widely used in chemical, food, and pharmaceutical industries due to their high efficiency and stability. They use a circular conveyor belt as the material carrier, achieving dehydration and drying through hot air circulation or other heating methods. The material handling device, as a key component for dynamic material processing within the dryer, not only breaks up material agglomerations but also promotes heat and mass exchange.

[0003] Existing dryer material handling devices employ a transmission structure where the drive shaft rotates synchronously, causing the material handling plates mounted on the connecting frame to rotate and disperse the wet material on the dryer conveyor belt. These devices typically have material handling plates with fixed angles and spacing, allowing for unidirectional material pushing only along the conveyor belt's running direction.

[0004] In actual production, due to uneven material feeding or differences in material viscosity, localized accumulation easily occurs on the conveyor belt. When the fixed teeth contact these accumulated areas, they can only rely on mechanical pushing force to spread the material to both sides, failing to effectively disperse and agitate the accumulated material. This not only makes it difficult for the material in the accumulated areas to fully contact with hot air, prolonging drying time and increasing energy consumption, but may also cause quality problems such as scorching and clumping due to uneven heating in certain areas. Therefore, it is necessary to design a material feeding device for the dryer.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0006] This utility model provides a material feeding device for a dryer to solve the problems in actual production, such as uneven material feeding causing easy accumulation on the conveyor belt and difficulty in breaking up the material with fixed teeth, resulting in low drying efficiency, high energy consumption, and poor quality.

[0007] The present invention adopts the following technical solution: a material feeding device for a dryer. It mainly includes a conveyor with two sets of support frames; a feeding assembly disposed above the conveyor, the feeding assembly including feeding rollers for feeding wet material, the feeding rollers having roller shafts at both ends; an adjusting assembly disposed on the support frames, the adjusting assembly including a moving unit for adjusting the position of the feeding rollers, the moving unit including an adjusting frame fixedly installed on the side of the support frame, the adjusting frame having a sliding seat slidably installed within the adjusting frame via a screw drive; a sliding unit disposed on the side of the support frame, the sliding unit including an adjusting frame fixedly installed on the side of the support frame, the adjusting frame slidably connected to the sliding seat 2 via two sets of guide rods; and a reciprocating assembly fixedly installed on the sliding seat 2, the reciprocating assembly including an angle plate 3, the angle plate 3 being connected to the sliding seat 2 via a connecting rod, the angle plate 3 having a drive unit installed on it for driving the feeding rollers to horizontally feed the wet material.

[0008] Furthermore, the second adjusting frame is provided with a long slot that provides sliding space for the connecting rod. The third angle plate includes a driving component fixedly installed on the third angle plate. A gear is installed at the output end of the driving component. A worm gear is sleeved on the central shaft of the gear through an interference fit. The worm gear adopts a radial partial worm block design. One end of the roller shaft passes through the second adjusting frame and is connected and fixed to the worm through a flat key. The initial meshing position of the worm is exactly in tooth profile fit with the worm block of the worm gear.

[0009] At the symmetrical position of the angle plate three, the gear two is connected to the bearing of the central shaft two and is in external meshing with the gear one. The worm gear two fixed at the end of the central shaft two adopts a radial local worm block structure. The protruding part extending from the bottom of the angle plate three has the shaft section of the worm near the drive end passing through the through hole of the protruding part, and the pin block fixed on its outer circular surface is embedded in the pin groove of the side wall of the protruding part.

[0010] Furthermore, the moving unit also includes an adjustment frame one mounted on a set of support frames. The adjustment frame one has an opening, and the lead screw bearing is connected inside the opening. The adjustment frame two has an opening groove opposite to the opening. An angle plate one is fixedly mounted on the side of the sliding seat one. A support member one is fixedly mounted on the bottom surface of the angle plate one. An angle plate two is mounted on the side of the sliding seat two. A support member two is fixedly mounted on the bottom surface of the angle plate two.

[0011] Furthermore, the material-scraping assembly slides between support member two and support member one, and the material-scraping roller moves between support member two and support member one through roller shafts at both ends. One end of the roller shaft is fixedly installed with an anti-detachment part, and the anti-detachment parts at both ends are respectively connected to support member two and support member one with springs.

[0012] Furthermore, the material feeding roller is provided with multiple sets of feeding teeth along its radial direction. Each set of feeding teeth includes a sliding strip welded and fixed to the surface of the material feeding roller. Feeding teeth are inserted into the sliding strip. Fasteners are connected to the sliding strip and are threaded through the sliding strip and connected to the feeding teeth.

[0013] Furthermore, the feeding teeth have an initial distance from the surface of the conveyor.

[0014] Furthermore, one end of the lead screw passes through the adjustment frame and is fixedly mounted with a crank handle.

[0015] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects:

[0016] A material feeding device for a dryer allows for precise adjustment of the sliding seat one by a crank-driven screw via a movable unit and a sliding unit within an adjustable assembly. Simultaneously, the sliding seat two slides freely along a guide rod, enabling flexible adjustment of the feeding roller's position and angle. This adapts the device to conveyors of different widths and various material accumulation states, improving its versatility. A reciprocating assembly is installed on the sliding seat two, and its drive unit drives the feeding roller to reciprocate horizontally. Compared to unidirectional feeding, this design more efficiently and evenly spreads the wet material, preventing accumulation and clumping, providing an ideal material state for subsequent drying processes, and improving drying efficiency. Attached Figure Description

[0017] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0018] In the attached diagram:

[0019] Figure 1 This is an overall schematic diagram of a dryer feeding device according to this application;

[0020] Figure 2 for Figure 1 A schematic diagram of a partial structure;

[0021] Figure 3 for Figure 1 A front view of the adjustment component in the image;

[0022] Figure 4 for Figure 2 A schematic diagram of a partial structure;

[0023] Figure 5 for Figure 4 A schematic diagram of the bottom structure;

[0024] Figure 6 for Figure 5Enlarged view of point A;

[0025] Figure label:

[0026] 1. Dryer; 2. Conveyor; 21. Support frame; 22. Baffle; 3. Adjusting assembly; 31. Adjusting frame one; 32. Lead screw; 33. Handle; 34. Sliding seat one; 35. Angle plate one; 351. Support component one; 36. Adjusting frame two; 361. Guide rod; 37. Sliding seat two; 38. Angle plate two; 381. Support component two; 4. Feeding assembly; 41. Feeding roller; 42. Sliding strip; 43. Fastener; 44. Feeding tooth; 45. Roller shaft; 5. Reciprocating assembly; 51. Angle plate three; 52. Extension part; 53. Drive component; 54. Gear one; 55. Worm gear one; 56. Gear two; 57. Worm gear two; 58. Worm. Detailed Implementation

[0027] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0028] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0029] Reference Figures 1-2 As shown, this utility model embodiment provides a dryer feeding device, including a dryer 1 and a matching conveyor 2. In this embodiment, the function of the dryer 1 is not described in detail here. The dryer 1 serves as the main cavity for material dehydration and drying. It constructs a heat exchange environment through a built-in heating element and a circulating air duct. The conveyor 2 can continuously transport wet materials into the dryer 1.

[0030] The conveyor 2 includes two sets of support frames 21, and two sets of support frames 21 are fixedly installed with relatively parallel baffles 22. The baffles 22 can effectively block the lateral displacement of wet material caused by vibration and speed changes during the conveying process, prevent the material from falling, and ensure that the wet material can be stably and orderly conveyed into the dryer 1 under the constraint of the baffles 22.

[0031] like Figures 1-4As shown, an adjustment assembly 3 is installed on two sets of support frames 21. The adjustment assembly 3 includes a moving unit installed on one set of support frames 21. The moving unit includes an adjustment frame 31 fixedly installed on one set of support frames 21. The adjustment frame 31 has an opening, and a lead screw 32 is connected to the opening with a bearing. A sliding seat 34 is threaded onto the lead screw 32. The sliding seat 34 slides in the opening. One end of the lead screw 32 passes through the adjustment frame 31 and is fixedly installed with a crank 33. The crank 33 is adapted to drive the lead screw 32 to rotate and cause the sliding seat 34 to move linearly along the straight line direction of the opening.

[0032] A sliding unit is installed on another set of support frames 21. The sliding unit includes an adjustment frame 2 36 fixedly installed on the other set of support frames 21. The adjustment frame 2 36 has an opening groove (not shown in the figure) that is opposite to the opening mouth. Two sets of guide rods 361 are fixedly installed in the opening groove, and a sliding seat 2 37 is slidably installed on the two sets of guide rods 361. The sliding seat 2 37 is adapted to slide along the straight direction of the two sets of guide rods 361.

[0033] Furthermore, a corner plate 35 is fixedly installed on the side of the sliding seat 34, a support member 351 is fixedly installed on the bottom surface of the corner plate 35, and a corner plate 38 is fixedly installed on the side of the sliding seat 37, a support member 381 is fixedly installed on the bottom surface of the corner plate 38, and a material scraping assembly 4 slides through between the support member 381 and the support member 351.

[0034] The adjustment component 3, through the cooperation of the moving unit and the sliding unit, enables flexible adjustment of the position and angle of the material feeding component 4. When the operator turns the crank 33, the lead screw 32 in the moving unit rotates accordingly, using the characteristics of threaded transmission to drive the sliding seat 34 to move in a straight line within the opening of the adjustment frame 31. The corner plate 35 on the side of the sliding seat 34 and the support member 351 on the bottom surface also move synchronously. On another set of support frames 21, the sliding seat 37 of the sliding unit can slide freely along the two sets of guide rods 361 in the opening slot of the adjustment frame 36, driving the corner plate 38 and the support member 381 to move.

[0035] During the adjustment process, support component 1 351 and support component 2 381 constitute the mounting base of the material feeding assembly 4. The change in their relative positions allows the material feeding assembly 4 to be adjusted in the horizontal direction to adapt to different widths and different material accumulation states.

[0036] like Figures 3-5As shown, the material feeding assembly 4 includes a material feeding roller 41 that moves through the support member 2 381 and the support member 1 351. The material feeding roller 41 has roller shafts 45 at both ends. The material feeding roller 41 moves through the support member 2 381 and the support member 1 351 through the roller shafts 45 at both ends respectively. In this application, an anti-detachment part (not shown in the figure) can be fixedly installed at one end of the roller shaft 45, and springs can be connected between the anti-detachment part at both ends and the support member 2 381 and the support member 1 351 respectively. The springs are sleeved on the roller shaft 45 to provide a stable axial constraint force for the material feeding roller 41, so that it is kept in the initial working position.

[0037] Multiple sets of toothed sections are arranged on the feed roller 41 along its radial direction to form a comb-like feed structure. Each set of toothed sections includes a sliding strip 42 welded and fixed to the surface of the feed roller 41. The sliding strip 42 adopts a U-shaped structure design. Feed teeth 44 are inserted into the sliding strip 42. Fasteners 43 are connected to the sliding strip 42. The fasteners 43 pass through the sliding strip 42 and are threadedly connected to the feed teeth 44. The feed teeth 44 have an initial distance from the surface of the conveyor 2.

[0038] When the conveyor 2 transports the wet material to the bottom of the fixed feeding roller 41, the feeding teeth 44 fixedly installed on the surface of the feeding roller 41 form an interception barrier. As the wet material moves forward under the push of the conveyor 2, the feeding teeth 44 first come into contact with the material to cut and separate the top of the accumulated material layer. Due to the forward inertia, the material is forced to pass through the gaps between the teeth to play the role of blocking and dispersing, and gradually spread the material out.

[0039] like Figures 5-6 As shown, a reciprocating assembly 5 is installed on the side of the sliding seat 2 37 away from the angle plate 2 38. The reciprocating assembly 5 is fitted to the back of the adjusting frame 2 36. The reciprocating assembly 5 includes an angle plate 3 51 fixedly installed on the side of the sliding seat 2 37. The angle plate 3 51 is connected to the sliding seat 2 37 through a connecting rod. At the same time, a long groove (not shown in the figure) is opened on the adjusting frame 2 36 to provide sliding space for the connecting rod.

[0040] Furthermore, a drive unit is installed on the angle plate 3 51. The angle plate 3 51 includes a drive component 53 fixedly installed on the angle plate 3 51. The drive component 53 is a motor, and a gear 1 54 is fixedly installed at the output end of the drive component 53. A worm gear 1 55 is sleeved on the central shaft 1 of the gear 1 54 through an interference fit. The worm gear adopts a radial partial worm block design and has a helical tooth structure only machined in a 120° fan-shaped area. After one end of the roller shaft 45 passes through the adjustment frame 2 36, it is connected and fixed to the worm 58 through a flat key. The initial meshing position of the worm 58 is exactly in tooth profile fit with the worm block of the worm gear 1 55, forming the first transmission link.

[0041] And at the symmetrical position of the angle plate 3 51, the gear 2 56 connected by the bearing of the central shaft 2 is in an external meshing state with the gear 1 54. The worm wheel 2 57 fixed at the end of the central shaft 2 also adopts a radial local worm block structure, but its worm block distribution area is 180° mirrored and misaligned with the worm wheel 1 55 to ensure that the meshing sequence of the two is completely complementary.

[0042] Furthermore, the protrusion 52 extending from the bottom of the angle plate 3 51 provides support for the worm 58: the shaft section of the worm 58 near the drive end passes through the through hole of the protrusion 52, and the pin block fixed on its outer circular surface is embedded in the pin groove of the side wall of the protrusion 52. Through the pin block and pin groove guiding structure, the movement of the worm 58 is restricted to horizontal reciprocating sliding along the pin groove direction, eliminating rotational freedom.

[0043] When the drive unit 53 is energized, gear 54 meshes with gear 56, causing worm gear 55 and worm gear 57 to rotate in opposite directions. As the worm blocks of worm gear 55 rotate to the position of disengaging from the worm 58, the worm blocks of worm gear 57 precisely engage with the tooth grooves of worm 58. Through this intermittent alternating meshing mechanism, the continuous rotation of the motor is converted into the horizontal reciprocating motion of the worm 58. Since the worm 58 is rigidly connected to the roller shaft 45, this reciprocating motion is transmitted through the roller shaft 45 to the end feed roller 41, causing it to perform periodic transverse reciprocating motion along the width direction of the conveyor 2. Consequently, the feed teeth 44 mounted on the circumferential surface of the feed roller 41 form a horizontal feed trajectory with the reciprocating motion of the roller.

[0044] Working principle: In this embodiment of the utility model, the sliding seat 34 is driven to slide linearly by the lead screw 32 and the crank 33 in the first adjustment frame 31. The sliding unit realizes the free sliding of the second sliding seat 37 through the guide rod 361 in the second adjustment frame 36. The two are linked by the first angle plate 35, the second angle plate 38, the first support 351, and the second support 381, so that the feeding assembly 4 can be flexibly adjusted in the horizontal direction to adapt to different working conditions. The anti-detachment parts and spring structure at both ends of the roller 45 ensure the axial stability of the feeding roller 41.

[0045] The surface of the material feeding roller 41 of the feeding assembly 4 is equipped with multiple sets of feeding teeth 44 radially through U-shaped sliding strips 42 and fasteners 43, forming an adjustable height interception barrier. When the conveyor 2 pushes the wet material forward, the feeding teeth 44 first contact the accumulated material layer to separate the material. Due to inertia, the material passes through the gaps between the teeth and is dispersed and spread out to form a loose pretreatment layer.

[0046] The reciprocating assembly 5 on the sliding seat 2 37 is fixed with the driving component 53 (motor) by the corner plate 3 51. The gear 1 54 at the output end of the motor meshes with the gear 2 56, driving the worm gear 1 55 and the worm gear 2 57 to rotate in opposite directions. The local worm blocks of the two are intermittently meshed with a 180° mirror misalignment, which converts the continuous rotation of the motor into the horizontal reciprocating motion of the worm 58. The worm 58 is guided by the pin block and pin groove structure to ensure linear sliding, thereby driving the material feeding roller 41 to reciprocate along the width direction of the conveyor 2, so as to break up the agglomerates of the material, spread it evenly, and improve the looseness of the material and the heat exchange area.

[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A material feeding device for a dryer, characterized in that: include Conveyor (2), which has two sets of support frames (21); A material feeding assembly (4) is disposed above the conveyor (2). The material feeding assembly (4) includes a material feeding roller (41) for feeding wet material, and the material feeding roller (41) has roller shafts (45) at both ends. Adjustment assembly (3) is set on support frame (21). The adjustment assembly (3) includes a moving unit for adjusting the position of feed roller (41). The moving unit includes an adjustment frame (31) fixedly installed on the side of support frame (21). A sliding seat (34) is slidably installed in the adjustment frame (31) and driven by a screw (32). A sliding unit is installed on the side of the support frame (21). The sliding unit includes an adjustment frame two (36) fixedly installed on the side of the support frame (21). The adjustment frame two (36) is slidably connected to a sliding seat two (37) through two sets of guide rods (361). A reciprocating assembly (5) is fixedly mounted on a sliding seat (37). The reciprocating assembly (5) includes a corner plate (51), which is connected to the sliding seat (37) via a connecting rod. A drive unit for driving the material-scraping roller (41) to horizontally scrape the wet material is mounted on the corner plate (51).

2. The material feeding device for a dryer according to claim 1, characterized in that: The second adjustment frame (36) has a long slot that provides sliding space for the connecting rod. The third angle plate (51) includes a drive component (53) fixedly installed on the third angle plate (51). The output end of the drive component (53) is equipped with a gear (54). The first worm gear (55) is sleeved on the central shaft of the first gear (54) by an interference fit. The worm gear adopts a radial local worm block design. One end of the roller shaft (45) passes through the second adjustment frame (36) and is fixed to the worm (58) by a flat key. The initial meshing position of the worm (58) is exactly in tooth profile fit with the worm block of the first worm gear (55). At the symmetrical position of the angle plate three (51), the gear two (56) is connected to the central shaft two bearing and is in external meshing with the gear one (54). The worm gear two (57) fixed at the end of the central shaft two adopts a radial local worm block structure. The protrusion (52) extending from the bottom of the angle plate three (51) has the shaft section of the worm (58) near the drive end passing through the through hole of the protrusion (52), and the pin block fixed on its outer circular surface is embedded in the pin groove of the side wall of the protrusion (52).

3. The material feeding device for a dryer according to claim 2, characterized in that: The moving unit also includes an adjustment frame one (31) mounted on a set of support frames (21). The adjustment frame one (31) has an opening. The lead screw (32) is bearing connected inside the opening. The adjustment frame two (36) has an opening groove opposite to the opening. Angle plate one (35) is fixedly mounted on the side of sliding seat one (34). Support member one (351) is fixedly mounted on the bottom surface of angle plate one (35). Angle plate two (38) is mounted on the side of sliding seat two (37). Support member two (381) is fixedly mounted on the bottom surface of angle plate two (38).

4. A dryer feeding device according to claim 3, characterized in that: The material-scraping assembly (4) slides through between support member two (381) and support member one (351). The material-scraping roller (41) moves through between support member two (381) and support member one (351) through roller shafts (45) at both ends. One end of the roller shaft (45) is fixedly installed with an anti-detachment part, and the anti-detachment parts at both ends are connected to support member two (381) and support member one (351) with springs respectively.

5. A dryer feeding device according to claim 4, characterized in that: The material feeding roller (41) is provided with multiple sets of feeding teeth along its radial direction. Each set of feeding teeth includes a sliding strip (42) welded and fixed to the surface of the material feeding roller (41). Feeding teeth (44) are inserted into the sliding strip (42). Fasteners (43) are connected to the sliding strip (42). The fasteners (43) pass through the sliding strip (42) and are threadedly connected to the feeding teeth (44).

6. A dryer feeding device according to claim 5, characterized in that: The material-eating teeth (44) have an initial distance from the surface of the conveyor (2).

7. A dryer feeding device according to claim 1, characterized in that: One end of the lead screw (32) passes through the adjustment frame (31) and is fixedly mounted with a crank handle (33).

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