Vacuum dryer

Abstract

The utility model discloses a vacuum drying machine, which relates to the technical field of drying machines and comprises a drying machine body, a storage rack is arranged in the drying machine body in a sliding manner, a plurality of groups of placing grooves are arranged on the storage rack, material trays are arranged in the placing grooves, a connecting rack is further arranged in the drying machine body in a sliding manner, and the connecting rack is connected with the drying machine body in a sliding manner. A plurality of sets of material turning rakes are fixedly connected to the connecting frame, the material turning rakes are arranged above the material trays respectively, and a first guide assembly allowing the storage rack to vertically slide is arranged between the drying machine body and the storage rack. Through the combined action of the lifting assembly, the reciprocating driving assembly and the like, in the process that materials are dried in the drying machine body, the material turning rake can continuously turn over the materials in the material disc, and the situation that the materials are statically stacked in the material disc, so that the drying effect of the materials is not uniform is effectively avoided; and the material drying treatment effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of dryers, in particular to a vacuum dryer. Background Art

[0002] The vacuum dryer is used for dehydration and drying of high value-added and heat-sensitive agricultural and sideline products, health products, food, medicinal materials, fruits and vegetables, chemical raw materials, etc.; it is used for low-temperature concentration of chemical products, removal of crystal water, drying of enzyme preparations, etc., vacuum extraction of Chinese herbal medicines, and is suitable for experiments in scientific research institutions.

[0003] Existing vacuum dryers, such as a low-temperature pulsating vacuum dryer disclosed in Chinese patent CN218993871U, achieve the effect of facilitating loading and unloading of the rack on the dryer body, but lack the effect of turning over the materials on the rack. During the drying process, the materials are always statically piled up in containers such as material trays on the rack, resulting in poor drying effect for the materials piled below and excessive drying of the materials above, resulting in uneven drying effect on the materials and poor drying effect. Utility Model Content

[0004] In order to solve the above technical problems, a vacuum dryer is provided, which solves the problem in the prior art that materials are always statically stacked in containers such as material trays on racks during the drying process, resulting in poor drying effect of materials stacked below and over-drying of materials above, resulting in uneven drying effect of materials and poor drying effect.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a vacuum dryer, including a dryer body, a storage rack is slidably arranged inside the dryer body, a plurality of sets of placement slots are arranged on the storage rack, a material tray is arranged inside the placement slot, a connecting frame is slidably arranged inside the dryer body, a plurality of sets of material turning rakes are fixedly connected to the connecting frame, and the material turning rakes are respectively arranged above the material tray;

[0006] Among them, a first guide component for the vertical sliding of the rack is arranged between the dryer body and the rack, a lifting drive component for controlling the lifting of the rack is arranged between the dryer body and the bottom end of the rack, a second guide component for the horizontal sliding of the connecting frame is arranged between the dryer body and the connecting frame, and a reciprocating moving component acting on the connecting frame is arranged between the top plate of the dryer body and the connecting frame.

[0007] Preferably, the first guide assembly includes a slide rail disposed on the side wall of the dryer body, and a slider slidably disposed on the slide rail and fixedly connected to the side wall of the rack.

[0008] Preferably, the lifting drive assembly includes a first motor installed on one side of the bottom end of the dryer body, a bidirectional screw rotatably arranged inside the dryer body and connected to one end of the output shaft of the first motor, two sets of screw sleeves respectively threadedly connected to both ends of the bidirectional screw, and a connecting rod arranged between the bottom end of the rack and the two sets of screw sleeves;

[0009] Wherein, one end of the connecting rod is hinged to the bottom end of the dryer body, and the other end of the connecting rod is hinged to the screw sleeve.

[0010] Preferably, the second guide assembly includes a sliding rod fixedly connected to the top position inside the dryer body, and a sliding sleeve slidably disposed on the sliding rod and connected to the top end of the connecting frame.

[0011] Preferably, the reciprocating assembly includes a second motor installed at the top of the dryer body, an arm disposed inside the dryer body and connected to one end of the output shaft of the second motor, a cylinder fixedly connected to the end of the arm, and a strip groove plate fixedly connected to the top of the connecting frame;

[0012] Wherein, one end of the cylinder is inserted into the interior of the strip groove plate.

[0013] Preferably, a universal wheel is installed at the bottom end of the dryer body, and a push rod is provided on one side of the dryer body.

[0014] Compared with the prior art, the advantages of the utility model are:

[0015] (1) Through the joint action of the lifting component, reciprocating drive component, etc., the turning rake can continuously turn the material inside the material tray during the drying process inside the dryer body, effectively avoiding the uneven drying effect caused by the static accumulation of the material inside the material tray, thereby ensuring the effect of material drying.

[0016] (2) By means of the universal wheels arranged at the bottom of the dryer body rolling in contact with the ground, people can push and pull the push rod to move the dryer body as a whole, thereby facilitating the transfer of the dryer body to different locations for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0018] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the connecting frame and the material turning rake in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the storage rack and the placement slot in the utility model.

[0021] The numbers in the figure are:

[0022] 1. Dryer body; 2. Storage rack; 3. Placement slot; 4. Material tray; 5. Connecting frame; 6. Material turning rake; 7. Slide rail; 8. Slider; 9. First motor; 10. Bidirectional screw; 11. Screw sleeve; 12. Connecting rod; 13. Slide rod; 14. Slide sleeve; 15. Second motor; 16. Arm; 17. Cylinder; 18. Strip groove plate; 19. Universal wheel; 20. Push rod. DETAILED DESCRIPTION

[0023] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0024] Example 1

[0025] Reference Figure 1-4 As shown, a vacuum dryer heat sink comprises a dryer body 1, a storage rack 2 is slidably arranged inside the dryer body 1, a plurality of groups of placement slots 3 are arranged on the storage rack 2, a material tray 4 is arranged inside the placement slots 3, a connecting frame 5 is slidably arranged inside the dryer body 1, a plurality of groups of material turning rakes 6 are fixedly connected to the connecting frame 5, and the material turning rakes 6 are respectively arranged above the material tray 4;

[0026] Among them, a first guide assembly for the vertical sliding of the rack 2 is provided between the dryer body 1 and the rack 2, a lifting drive assembly for controlling the lifting of the rack 2 is provided between the dryer body 1 and the bottom end of the rack 2, a second guide assembly for the horizontal sliding of the rack 5 is provided between the dryer body 1 and the connecting frame 5, and a reciprocating moving assembly acting on the connecting frame 5 is provided between the top plate of the dryer body 1 and the connecting frame 5;

[0027] The material tray 4 is used to hold the materials to be dried. The contour of the placement groove 3 arranged on the rack 2 matches the bottom end of the material tray 4, so that the material tray 4 can be stably placed therein without slipping down. By controlling the lifting drive assembly, the rack 2 as a whole can be driven upward or downward. At this time, the rack 2 as a whole will keep vertically rising or falling inside the dryer body 1 along the direction of the first guide assembly. Therefore, after placing several groups of material trays 4 containing materials in the placement groove 3 on the rack 2, the dryer body 1 can be moved vertically upward by controlling the lifting drive assembly, thereby driving several groups of material trays 4 to move upward, so that the upper position of the material tray 4 The turning rakes 6 can be inserted into the materials in the material tray 4, and the reciprocating movement component can produce a horizontal reciprocating driving effect on the connecting frame 5. At this time, the connecting frame 5 will maintain horizontal reciprocating movement inside the dryer body 1 under the guidance of the second guide component, and then can drive several groups of turning rakes 6 on the connecting frame 5 to move horizontally back and forth. Since the turning rakes 6 are all inserted into the materials in the material tray 4 at this time, the turning rakes 6 will continuously turn the materials in the material tray 4 during the drying process of the materials in the dryer body 1, effectively avoiding uneven drying effect of the materials due to static accumulation inside the material tray 4, thereby ensuring the effect of material drying treatment.

[0028] For further information, please refer to Figure 2 As shown, the first guide assembly includes a slide rail 7 disposed on the side wall of the dryer body 1, and a slider 8 slidably disposed on the slide rail 7 and fixedly connected to the side wall of the rack 2;

[0029] When the rack 2 is driven, the slider 8 will keep sliding vertically along the surface of the slide rail 7 under the drive of the rack 2. At this time, the rack 2 will keep vertical lifting and sliding under the guidance of the slide rail 7 and the slider 8 without deviation.

[0030] For further information, please refer to Figure 2 As shown, the lifting drive assembly includes a first motor 9 installed on one side of the bottom end of the dryer body 1, a bidirectional screw 10 rotatably arranged inside the dryer body 1 and connected to one end of the output shaft of the first motor 9, two sets of screw sleeves 11 respectively threadedly connected to both ends of the bidirectional screw 10, and a connecting rod 12 arranged between the bottom end of the rack 2 and the two sets of screw sleeves 11;

[0031] One end of the connecting rod 12 is hinged to the bottom end of the dryer body 1, and the other end of the connecting rod 12 is hinged to the screw sleeve 11;

[0032] After starting the first motor 9, the first motor 9 can drive the bidirectional screw 10 to rotate. The threads at both ends of the bidirectional screw 10 are in opposite directions. Therefore, when the bidirectional screw 10 rotates, the screw sleeves 11 at both ends thereof will be driven in the opposite direction and move closer to or away from each other along the bidirectional screw 10. When the two sets of screw sleeves 11 are controlled to move closer to each other, the connecting rod 12 will push the rack 2 upward, so that the rack 2 as a whole is driven upward. Conversely, when the two sets of screw sleeves 11 are controlled to move away from each other, the connecting rod 12 will pull the rack 2 downward, so that the rack 2 as a whole is driven downward.

[0033] For further information, please refer to Figure 2 , Figure 3 As shown, the second guide assembly includes a slide bar 13 fixedly connected to the top position inside the dryer body 1, and a slide sleeve 14 slidably arranged on the slide bar 13 and connected to the top of the connecting frame 5;

[0034] When the connecting frame 5 is driven, the sliding sleeve 14 will slide horizontally along the surface of the sliding rod 13 under the drive of the connecting frame 5. At this time, the connecting frame 5 will slide in a horizontal straight line inside the dryer body 1 without deviation under the guidance of the sliding rod 13 and the sliding sleeve 14.

[0035] For further information, please refer to Figure 2 , Figure 3 As shown, the reciprocating assembly includes a second motor 15 installed at the top of the dryer body 1, an arm 16 disposed inside the dryer body 1 and connected to one end of the output shaft of the second motor 15, a cylinder 17 fixedly connected to the end of the arm 16, and a strip groove plate 18 fixedly connected to the top of the connecting frame 5;

[0036] One end of the cylinder 17 is inserted into the interior of the strip groove plate 18;

[0037] After starting the second motor 15, one end of the output shaft of the second motor 15 will drive the arm 16 to rotate, and the arm 16 will drive the cylinder 17 at its end to rotate. Since the cylinder 17 is inserted into the strip groove plate 18, the cylinder 17 will continuously slide inside the strip groove plate 18 during the rotation process and produce a reciprocating driving effect on the strip groove plate 18, thereby causing the connecting frame 5 to be driven horizontally reciprocatingly under the drive of the strip groove plate 18.

[0038] Example 2

[0039] Further in the embodiments, please refer to Figure 1 As shown, a universal wheel 19 is installed at the bottom end of the dryer body 1, and a push rod 20 is provided at one side of the dryer body 1;

[0040] The universal wheel 19 is in rolling contact with the ground, and people can move the dryer body 1 as a whole by pushing and pulling the push rod 20, so that the dryer body 1 can be transferred to different places for use.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A vacuum dryer, comprising a dryer body (1), characterized in that: A storage rack (2) is slidably arranged inside the dryer body (1), a plurality of groups of placement grooves (3) are arranged on the storage rack (2), a material tray (4) is arranged inside the placement grooves (3), a connecting frame (5) is also slidably arranged inside the dryer body (1), a plurality of groups of material turning rakes (6) are fixedly connected to the connecting frame (5), and the material turning rakes (6) are respectively arranged above the material tray (4); A first guide assembly for vertically sliding the rack (2) is provided between the dryer body (1) and the rack (2); a lifting drive assembly for controlling the lifting of the rack (2) is provided between the dryer body (1) and the bottom end of the rack (2); a second guide assembly for horizontally sliding the rack (5) is provided between the dryer body (1) and the connecting frame (5); and a reciprocating assembly for acting on the connecting frame (5) is provided between the top plate of the dryer body (1) and the connecting frame (5).

2. A vacuum dryer according to claim 1, characterized in that: The first guide assembly comprises a slide rail (7) arranged on the side wall of the dryer body (1), and a slider (8) slidably arranged on the slide rail (7) and fixedly connected to the side wall of the storage rack (2).

3. A vacuum dryer according to claim 1, characterized in that: The lifting drive assembly comprises a first motor (9) mounted on one side of the bottom end of the dryer body (1), a bidirectional screw (10) rotatably arranged inside the dryer body (1) and connected to one end of the output shaft of the first motor (9), two sets of screw sleeves (11) respectively threadedly connected to both ends of the bidirectional screw (10), and a connecting rod (12) arranged between the bottom end of the storage rack (2) and the two sets of screw sleeves (11); One end of the connecting rod (12) is hinged to the bottom end of the dryer body (1), and the other end of the connecting rod (12) is hinged to the screw sleeve (11).

4. A vacuum dryer according to claim 1, characterized in that: The second guide assembly comprises a sliding rod (13) fixedly connected to the top end of the dryer body (1), and a sliding sleeve (14) slidably arranged on the sliding rod (13) and connected to the top end of the connecting frame (5).

5. A vacuum dryer according to claim 1, characterized in that: The reciprocating moving assembly comprises a second motor (15) mounted on the top of the dryer body (1), an arm (16) disposed inside the dryer body (1) and connected to one end of the output shaft of the second motor (15), a cylinder (17) fixedly connected to the end of the arm (16), and a strip groove plate (18) fixedly connected to the top of the connecting frame (5); One end of the cylinder (17) is inserted into the interior of the strip groove plate (18).

6. A vacuum dryer according to claim 3, characterized in that: A universal wheel (19) is installed at the bottom end of the dryer body (1), and a push rod (20) is provided on one side of the dryer body (1).

Images