Drying equipment for producing medicinal PVDC (Polyvinyl Dichloride) composite hard sheet
The drying device addresses uneven heating and low efficiency by employing a conveyor belt system and dual heating boxes to uniformly dry PVDC hard sheets, improving drying efficiency.
Patent Information
- Application Number
- CN202323491209.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-21
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2033-12-21
AI Technical Summary
Existing drying equipment for PVDC hard sheets results in uneven heating and low drying efficiency due to static placement of sheets on placement racks.
A drying device with a transmission assembly comprising a conveyor belt system and heating boxes, along with a filtration system to ensure uniform heating and efficient drying.
The device prevents uneven heating and enhances drying efficiency by transporting sheets through a conveyor belt system while using dual heating boxes to ensure thorough drying.
Smart Images
Figure CN222279199U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PVDC hard sheet production, in particular to drying equipment for producing medicinal PVDC composite hard sheets. Background Art
[0002] Pharmaceutical composite hard sheets generally have several processes such as PVC / PVDC, PVC / PE / PVDC, etc., which are widely used in the packaging of solid or liquid medicines. They are packaging materials that directly contact medicines. In the production process of PVDC hard sheets, the bottom layer and the surface layer need to be coated. After coating, they need to be dried so that the coating can solidify quickly and facilitate the next work process. In the process of drying the hard sheets with existing drying equipment, the hard sheets are usually placed statically on the placement rack, so the hard sheets on the placement rack are prone to uneven heating and low drying efficiency. Utility Model Content
[0003] The purpose of the utility model is to provide a drying device for producing medicinal PVDC composite hard sheets to solve the problems raised in the above-mentioned background technology.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A drying device for producing medicinal PVDC composite hard sheets, comprising a drying box, a feed hopper is fixedly connected to the top of the left side of the drying box, a discharge hopper is fixedly connected to the bottom of the right side of the drying box, a drying mechanism is arranged on the top and inside of the drying box, and a transmission assembly is arranged inside the drying box;
[0006] The drying mechanism includes a fan arranged on the top of a drying box, an extraction pipe is fixedly connected to the right side of the fan, the other end of the extraction pipe is fixedly connected to a filter box, the left side of the filter box is fixedly connected to the right side wall of the drying box, the left side of the fan is fixedly connected to an air supply pipe, the end of the air supply pipe away from the fan extends to the interior of the drying box, the inner cavity of the drying box is provided with a first heating box and a second heating box, the first heating box is arranged above the second heating box, and the end of the air supply pipe away from the fan is fixedly connected to the top of the first heating box.
[0007] As a preferred solution of the utility model, a heating wire is provided inside the first heating box, air outlets are equidistantly provided at the bottom of the first heating box, the structure of the second heating box is the same as that of the first heating box, a connecting pipe is provided on the back of the drying box, both ends of the connecting pipe extend to the interior of the drying box, and the two ends of the connecting pipe are fixedly connected to the backs of the first heating box and the second heating box respectively.
[0008] As a preferred solution of the utility model, a filter mesh layer and a needle felt layer are arranged inside the filter box, and the needle felt layer is arranged above the filter mesh layer.
[0009] As a preferred solution of the utility model, the transmission assembly includes a transmission belt 1 and a conveyor belt 2 arranged inside the drying box, the transmission belt 1 is arranged above the conveyor belt 2, and the transmission belt 1 and the conveyor belt 2 are respectively arranged below the first heating box and the second heating box.
[0010] As a preferred solution of the utility model, a first guide plate is fixedly connected to the top of the left side of the inner cavity of the drying box, and the first guide plate is arranged below the feed hopper. A second guide plate is fixedly connected to the right side of the inner cavity of the drying box, and the second guide plate is arranged between transmission belt one and conveyor belt two.
[0011] As a preferred solution of the utility model, a long guide plate is provided below the conveyor belt 2, and the left end of the long guide plate is fixedly connected to the bottom end of the left inner wall of the drying box.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. In the utility model, dust in the air can be removed through the filter layer and the needle felt layer to avoid blockage of the fan and the air duct over time. The first heating box and the second heating box can dry the film at the same time, thereby improving work efficiency.
[0014] 2. In the utility model, the hard sheet can be transported by the transmission belt 1 and the conveyor belt 2, so that the position of the hard sheet is changed, thereby preventing the hard sheet from being heated unevenly and causing the drying efficiency to become low. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the utility model;
[0016] Figure 2 It is a schematic diagram of the back structure of the utility model;
[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model.
[0018] In the figure: 1. drying box; 2. feed hopper; 3. discharge hopper; 4. drying mechanism; 401. fan; 402. air duct; 403. extraction pipe; 404. filter box; 405. connecting pipe; 406. filter mesh layer; 407. needle felt layer; 408. first heating box; 409. second heating box; 410. heating wire; 411. air outlet; 5. transmission assembly; 501. transmission belt 1; 502. transmission belt 2; 503. first guide plate; 504. second guide plate; 505. long guide plate. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0020] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0021] For examples, see Figure 1 , Figure 3 , the utility model provides a technical solution:
[0022] A drying device for producing medicinal PVDC composite hard sheets comprises a drying box 1, wherein a material inlet hopper 2 is fixedly connected to the top of the left side of the drying box 1, a material outlet hopper 3 is fixedly connected to the bottom of the right side of the drying box 1, a drying mechanism 4 is arranged on the top and inside of the drying box 1, a transmission assembly 5 is arranged inside the drying box 1, the drying mechanism 4 comprises a fan 401 arranged on the top of the drying box 1, an extraction pipe 403 is fixedly connected to the right side of the fan 401, a filter box 404 is fixedly connected to the other end of the extraction pipe 403, the left side of the filter box 404 is fixedly connected to the right side wall of the drying box 1, an air supply pipe 402 is fixedly connected to the left side of the fan 401, one end of the air supply pipe 402 away from the fan 401 extends to the inside of the drying box 1, a first heating box 408 and a second heating box 409 are arranged in the inner cavity of the drying box 1, the first heating box 408 is arranged above the second heating box 409, and one end of the air supply pipe 402 away from the fan 401 is fixedly connected to the top of the first heating box 408.
[0023] like Figure 2 , Figure 3 As shown, a heating wire 410 is provided inside the first heating box 408, and air outlets 411 are equidistantly provided at the bottom of the first heating box 408. The structure of the second heating box 409 is the same as that of the first heating box 408. A connecting pipe 405 is provided on the back of the drying box 1, and both ends of the connecting pipe 405 extend to the interior of the drying box 1. Both ends of the connecting pipe 405 are fixedly connected to the backs of the first heating box 408 and the second heating box 409 respectively. A filter mesh layer 406 and a needle felt layer 407 are provided inside the filter box 404, and the needle felt layer 407 is arranged above the filter mesh layer 406.
[0024] like Figure 3 As shown, the transmission assembly 5 includes a transmission belt 1 501 and a conveyor belt 2 502 arranged inside the drying box 1, the transmission belt 1 501 is arranged above the conveyor belt 2 502, the transmission belt 1 501 and the conveyor belt 2 502 are respectively arranged below the first heating box 408 and the second heating box 409, a first guide plate 503 is fixedly connected to the top of the left side of the inner cavity of the drying box 1, the first guide plate 503 is arranged below the feed hopper 2, a second guide plate 504 is fixedly connected to the right side of the inner cavity of the drying box 1, the second guide plate 504 is arranged between the transmission belt 1 501 and the conveyor belt 2 502, a long guide plate 505 is arranged below the conveyor belt 2 502, and the left end of the long guide plate 505 is fixedly connected to the bottom end of the left inner wall of the drying box 1.
[0025] The working process of the utility model is as follows: when in use, the PVDC hard sheet enters the interior of the drying box 1 through the feed hopper 2, and falls on the surface of the transmission belt 501 under the action of the first guide plate 503. The fan 401 uses the extraction pipe 403 to draw air into the interior of the filter box 404. The filter mesh layer 406 and the needle felt layer 407 inside the filter box 404 can remove dust in the air. The filtered air enters the interior of the first heating box 408 through the air supply pipe 402. With the cooperation of the connecting pipe 405, the air can enter the interior of the second heating box 409. The heating wires 410 inside the first heating box 408 and the second heating box 409 heat the air to dry the PVDC hard sheet. The transmission belt 501 transports and moves the PVDC hard sheet to avoid uneven heating of the PVDC hard sheet. Under the action of the second guide plate 504, the PVDC hard sheet falls on the surface of the conveyor belt 502 and can be dried again, and then discharged through the long guide plate 505 using the discharge hopper 3.
[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A drying device for producing a medicinal PVDC composite hard sheet, comprising a drying box (1), characterized in that: A material inlet hopper (2) is fixedly connected to the top of the left side of the drying box (1), a material outlet hopper (3) is fixedly connected to the bottom of the right side of the drying box (1), a drying mechanism (4) is arranged on the top and inside of the drying box (1), and a transmission assembly (5) is arranged inside the drying box (1); The drying mechanism (4) comprises a fan (401) arranged at the top of the drying box (1); an extraction pipe (403) is fixedly connected to the right side of the fan (401); the other end of the extraction pipe (403) is fixedly connected to a filter box (404); the left side of the filter box (404) is fixedly connected to the right side wall of the drying box (1); an air supply pipe (402) is fixedly connected to the left side of the fan (401); an end of the air supply pipe (402) away from the fan (401) extends to the interior of the drying box (1); a first heating box (408) and a second heating box (409) are arranged in the inner cavity of the drying box (1); the first heating box (408) is arranged above the second heating box (409); and an end of the air supply pipe (402) away from the fan (401) is fixedly connected to the top of the first heating box (408).
2. The drying equipment for producing a medicinal PVDC composite hard sheet according to claim 1, characterized in that: A heating wire (410) is arranged inside the first heating box (408), and air outlets (411) are arranged at equal intervals at the bottom of the first heating box (408). The structure of the second heating box (409) is the same as that of the first heating box (408). A connecting pipe (405) is arranged on the back of the drying box (1), and both ends of the connecting pipe (405) extend into the interior of the drying box (1). The two ends of the connecting pipe (405) are fixedly connected to the backs of the first heating box (408) and the second heating box (409), respectively.
3. The drying equipment for producing a medicinal PVDC composite hard sheet according to claim 1, characterized in that: A filter mesh layer (406) and a needle felt layer (407) are arranged inside the filter box (404), and the needle felt layer (407) is arranged above the filter mesh layer (406).
4. The drying equipment for producing a medicinal PVDC composite hard sheet according to claim 1, characterized in that: The transmission assembly (5) comprises a transmission belt 1 (501) and a conveyor belt 2 (502) which are arranged inside the drying box (1); the transmission belt 1 (501) is arranged above the conveyor belt 2 (502); and the transmission belt 1 (501) and the conveyor belt 2 (502) are arranged below the first heating box (408) and the second heating box (409), respectively.
5. The drying equipment for producing a medicinal PVDC composite hard sheet according to claim 4, characterized in that: A first guide plate (503) is fixedly connected to the top of the left side of the inner cavity of the drying box (1), and the first guide plate (503) is arranged below the feed hopper (2). A second guide plate (504) is fixedly connected to the right side of the inner cavity of the drying box (1), and the second guide plate (504) is arranged between the first transmission belt (501) and the second transmission belt (502).
6. The drying equipment for producing a medicinal PVDC composite hard sheet according to claim 5, characterized in that: A long guide plate (505) is provided below the second conveyor belt (502), and the left end of the long guide plate (505) is fixedly connected to the bottom end of the left inner wall of the drying box (1).