A heat preservation structure of a drum roasting machine

Abstract

The present application relates to the technical field of food processing equipment, and particularly relates to a heat preservation structure of a drum roasting machine, which comprises a shell and an internal horizontal drum, a heating device is arranged on the radial outer side of the drum, a rotating driving mechanism is connected to one end of the drum, a material inlet is arranged at one end of the drum, the outer wall of the drum is covered with a heat preservation layer, a baffle is arranged at the material inlet, a feeding pipe is arranged in the baffle, the baffle comprises an upper baffle and a lower baffle which are hingedly connected, and the upper part of the upper baffle is connected with the shell. In the roasting process, the heat preservation layer can prevent the heat in the drum from being dissipated outward, so that the heat preservation and energy consumption reduction effects are achieved. The baffle at the material inlet can effectively reduce the convection of the hot air in the drum and the low-temperature air outside, so that the further heat preservation effect is achieved.

Description

Technical Field

[0001] This invention relates to the field of food processing equipment technology, and in particular to a heat preservation structure for a drum roasting machine. Background Technology

[0002] A roasting machine is a specialized piece of equipment that uses heating and turning of materials to roast food (such as nuts, grains, spices, etc.) until it is cooked, dehydrated, or has its flavor enhanced. Its core working logic involves generating heat through a heating device (such as electromagnetic, gas, or electric heating), combined with a stirring or rotating drum structure, to ensure the materials are heated evenly, achieving effects such as "roasting," "drying," and "flavoring." Currently, most roasting machines have open feed inlets, resulting in significant heat loss. This not only prolongs heating time and increases energy consumption, but also easily causes smoke and dust generated during heating inside the drum to overflow, leading to a poor user experience for operators. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a heat preservation structure for a drum roaster, which addresses the above-mentioned technical deficiencies by setting up a baffle to solve the problem of severe heat loss due to the open feed inlet.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a heat preservation structure for a drum roaster, including a shell and an internal horizontal drum. A heating device is provided on the radial outer side of the drum. A rotary drive mechanism is connected to one end of the drum. A material inlet is provided at one end of the drum. The outer wall of the drum is covered with a heat preservation layer. A baffle is provided at the material inlet. A material inlet pipe passes through the baffle. The baffle includes an upper baffle and a lower baffle that are hinged to each other. The upper part of the upper baffle is connected to the shell.

[0005] To further optimize this technical solution, the upper part of the lower baffle is connected to the lower part of the upper baffle via a connecting ring. The feed pipe passes through the position where the upper baffle and the lower baffle meet. A limiting plate is fixed to the lower part of the upper baffle facing the feed port. The limiting plate extends downward into the swing path of the lower baffle. The swing range of the lower baffle is limited by the limiting plate to prevent the lower baffle from colliding with the feed port when it swings inward.

[0006] To further optimize this technical solution, a vertical partition is provided inside the housing, the material inlet is cylindrical and axially passes through the partition, and a limit bearing is provided on one side of the partition, with the material inlet making rolling contact with the outer ring of the limit bearing.

[0007] To further optimize this technical solution, a positioning bolt is provided on the upper part of the upper baffle, and a limiting sleeve is provided on the side near the partition. The positioning bolt passes through the upper baffle and the limiting sleeve and is threadedly connected to the partition.

[0008] Compared with the prior art, this utility model has the following advantages: 1. During the frying process, the heat insulation layer can prevent the heat inside the drum from dissipating outward, thus achieving the effect of heat preservation and energy reduction; 2. At the material outlet, due to the baffle blocking, the convection between the hot air inside the drum and the low-temperature air outside can be effectively reduced, thus achieving a further heat preservation effect; 3. When the drum rotates in the reverse direction and discharges material from the material outlet, the material can push the lower baffle to flip outward and open the baffle, without affecting the automatic discharge of the material. Attached Figure Description

[0009] Figure 1 This is a side view of the insulation structure of a drum roasting machine; Figure 2 for Figure 1 A magnified view of a portion of point A in the middle; Figure 3 This is a front view of a baffle in the insulation structure of a drum roaster; Figure 4 for Figure 3 A magnified view of a portion of point B in the middle.

[0010] In the diagram: 1. Shell; 11. Positioning bolt; 12. Limit bearing; 13. Limit sleeve; 10. Partition plate; 2. Roller; 20. Insulation layer; 21. Feed port; 3. Heating device; 4. Rotary drive mechanism; 5. Baffle; 51. Upper baffle; 511. Limit plate; 52. Lower baffle; 53. Connecting ring; 6. Hopper; 61. Control valve; 7. Feed pipe. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that these descriptions are exemplary only and are not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0012] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" used in this application to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are used solely for the convenience of describing this disclosure and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0013] Combination Figures 1 to 3As shown, a heat-insulating structure for a drum roaster includes a shell 1 and an internal horizontal drum 2. The outer wall of the main body of the drum 2 is covered with a heat-insulating layer 20. In this embodiment, the heat-insulating layer 20 is made of fire-resistant and high-temperature resistant aluminum silicate insulation cotton. A heating device 3 is provided on the radially outer side of the drum 2. In this embodiment, the heating device 3 is an electromagnetic heating device and is located on the upper part of the drum 2. One end of the drum 2 is connected to a rotary drive mechanism 4, which is a chain drive structure powered by a servo motor. A vertical partition 10 is provided inside the shell 1. The feed inlet 21 is cylindrical and axially passes through the partition 10. A limiting bearing 12 is provided on one side of the partition 10, and the feed inlet 21 rolls in contact with the outer ring of the limiting bearing 12.

[0014] One end of the roller 2 is provided with a feed inlet 21, and a hopper 6 is provided above the corresponding position of the feed inlet 21. The bottom of the hopper 6 is provided with a control valve 61 and a feed pipe 7 in sequence. The control valve 61 is a flap structure driven by a rotary motor. One end of the bottom of the feed pipe 7 is inserted into the feed inlet 21. A baffle 5 is provided at the feed inlet 21, and the feed pipe 7 is inserted into the baffle 5. The baffle 5 includes an upper baffle 51 and a lower baffle 52 that are hinged to each other. The upper part of the upper baffle 51 is connected to the housing 1. A positioning bolt 11 is provided on the upper part of the upper baffle 51, and a limiting sleeve 13 is provided on the side near the partition 10. The positioning bolt 11 passes through the upper baffle 51 and the limiting sleeve 13 and is threadedly connected to the partition 10.

[0015] Combination Figures 2 to 4 As shown, the upper part of the lower baffle 52 is connected to the lower part of the upper baffle 51 through the connecting ring 53. The feed pipe 7 passes through the position where the upper baffle 51 and the lower baffle 52 meet. A limiting plate 511 is fixed on the lower part of the upper baffle 51 facing the feed port 21. The limiting plate 511 extends downward into the swing path of the lower baffle 52. The limiting plate 511 restricts the swing range of the lower baffle 52 to prevent the lower baffle 52 from colliding with the feed port 21 when it swings inward.

[0016] When using, combine Figures 1 to 4 As shown, the heating device 3 heats the ferromagnetic drum 2, and the rotary drive mechanism 4 drives the drum 2 to rotate around its axis. The material to be roasted is added to the hopper 6, and the material is controlled by the control valve 61 to enter the feed pipe 7 by gravity, and finally falls into the drum 2 to start roasting. During the roasting process, the heat insulation layer 20 prevents the heat inside the drum 2 from dissipating outward, achieving the effect of heat preservation and energy reduction. At the feed inlet 21, the baffle 5 effectively reduces the convection between the hot air inside the drum 2 and the cold air outside, achieving a further heat preservation effect. When the drum 2 rotates in the opposite direction and discharges material from the feed inlet 21, the material can push the lower baffle 52 to flip outward and open the baffle 5, without affecting the automatic discharge of the material.

[0017] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

[0018] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A heat-insulating structure for a drum roaster, comprising a shell (1) and an internal horizontal drum (2), wherein a heating device (3) is provided on the radially outer side of the drum (2), a rotary drive mechanism (4) is connected to one end of the drum (2), and a material inlet (21) is provided at one end of the drum (2), characterized in that: The outer wall of the roller (2) is covered with a heat insulation layer (20). A baffle (5) is provided at the material inlet (21). A feed pipe (7) is inserted through the baffle (5). The baffle (5) includes an upper baffle (51) and a lower baffle (52) that are hinged to each other. The upper part of the upper baffle (51) is connected to the shell (1).

2. The heat preservation structure of a drum roaster according to claim 1, characterized in that: The upper part of the lower baffle (52) is connected to the lower part of the upper baffle (51) through the connecting ring (53). The feed pipe (7) passes through the position where the upper baffle (51) and the lower baffle (52) meet. A limiting plate (511) is fixed on the lower part of the upper baffle (51) facing the feed port (21). The limiting plate (511) extends downward into the swing path of the lower baffle (52). The swing range of the lower baffle (52) is limited by the limiting plate (511) to avoid the lower baffle (52) from colliding with the feed port (21) when it swings inward.

3. The heat preservation structure of a drum roaster according to claim 2, characterized in that: A vertical partition (10) is provided inside the housing (1). The feed port (21) is cylindrical and is axially inserted in the partition (10). A limiting bearing (12) is provided on one side of the partition (10). The feed port (21) is in rolling contact with the outer ring of the limiting bearing (12).

4. The heat preservation structure of a drum roasting machine according to claim 3, characterized in that: The upper part of the upper baffle (51) is provided with a positioning bolt (11), and a limiting sleeve (13) is provided on the side near the partition (10). The positioning bolt (11) passes through the upper baffle (51) and the limiting sleeve (13) and is threadedly connected to the partition (10).

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