A thickness adjustment mechanism for asphalt waterproofing material
By introducing a drive roller and bidirectional screw adjustment mechanism into the production process of asphalt waterproof membrane, the problem of uneven asphalt thickness on the upper and lower sides of the base fabric was solved, achieving uniform thickness adjustment of the asphalt waterproof membrane and improving product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG WEILUN BUILDING MATERIALS TECH CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-07-03
Smart Images

Figure CN224449692U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a thickness adjustment mechanism, and more particularly to a thickness adjustment mechanism for asphalt waterproofing materials. Background Technology
[0002] Asphalt waterproof membrane refers to roll materials made of asphalt, a reinforcing material, and a surface-spread anti-sticking material; it is also known as asphalt felt. It is commonly used for adhesive waterproofing layers. Asphalt waterproof membranes are classified into reinforced and unreinforced roll materials. Reinforced roll materials are those made by impregnating petroleum asphalt with a reinforcing material such as thick paper, fiberglass cloth, asbestos cloth, or cotton / linen fabrics.
[0003] For example, patent application number 201620287280.3 discloses a device for adjusting the thickness of the asphalt coating. In the process of preparing asphalt waterproofing material, the base fabric needs to pass through the asphalt pool. When the base fabric passes through the space between roller four and roller five, it will block the excess asphalt and flow back into the asphalt pool. The rotating disc drives the threaded rod to rotate, so that the sliding block can rise or fall. However, existing asphalt waterproofing membranes generally have asphalt layers on both the top and bottom of the base fabric and are covered with a film. When adjusting the asphalt thickness using the existing thickness adjustment mechanism, it is inconvenient to adjust the asphalt thickness on the bottom side of the base fabric, which can easily affect the quality of the asphalt waterproofing membrane. Utility Model Content
[0004] The purpose of this invention is to provide a thickness adjustment mechanism for asphalt waterproofing materials. It can adjust the asphalt thickness on both the upper and lower sides of the base fabric, thereby improving the quality of the asphalt waterproofing membrane.
[0005] The technical solution of this utility model is as follows: A thickness adjustment mechanism for asphalt waterproofing material, comprising a support set at the upper end of both sides of the width of an asphalt pool, a drive roller set at the rear of the support, and a circular tube set inside the asphalt pool. The support is provided with a vertically arranged guide groove, and an upper support and a lower support are arranged vertically and movable along the guide groove. The upper support and the lower support are provided with rollers for adjusting the thickness of asphalt on the base fabric. A vertically arranged bidirectional screw is provided on one side of the upper support and the lower support. Two sets of screw seats are provided on the bidirectional screw. The screw seats are connected to the upper support and the lower support through an adjustment mechanism. A drive mechanism for driving the bidirectional screw is provided at the upper end of the bidirectional screw.
[0006] In the aforementioned asphalt waterproofing material thickness adjustment mechanism, the adjustment mechanism includes a base located on the upper side of the screw seat, a first wedge block that can move laterally along the base and a support plate perpendicular to the base, a limiting groove on the inclined surface of the first wedge block, a limiting block in the limiting groove, a second wedge block fixedly connected to the upper end of the limiting block, the second wedge block fixedly connected to the end face of the upper or lower support, and an adjustment rod located in the support plate connected to one end of the first wedge block via a connector.
[0007] In the aforementioned asphalt waterproofing material thickness adjustment mechanism, the slope ratio of the first wedge is 1:2.
[0008] In the aforementioned asphalt waterproofing material thickness adjustment mechanism, the driving mechanism includes a rotating rod disposed between supports, two sets of second bevel gears are provided on the rotating rod, a first bevel gear mounted on a bidirectional lead screw is connected to one side of the second bevel gear, and a turntable is provided at the end of the rotating rod.
[0009] Compared with the prior art, the present invention has the following advantages:
[0010] This application uses a drive roller to generate traction force to move the asphalt waterproofing material, and uses a bidirectional screw to initially adjust the positions of the upper and lower supports, and an adjustment mechanism to finely adjust the positions of the upper and lower supports, so as to accurately control the thickness of the asphalt on both sides of the base fabric and improve product quality. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a schematic diagram of the adjustment mechanism of this utility model.
[0013] The labels in the attached diagram are as follows: 1-bracket, 2-drive roller, 3-guide groove, 4-upper support, 5-lower support, 6-double-acting lead screw, 7-lead screw seat, 8-roller, 9-base, 10-first wedge, 11-limiting groove, 12-limiting block, 13-second wedge, 14-first bevel gear, 15-second bevel gear, 16-rotating rod, 17-turntable, 18-joint, 19-support plate, 20-adjusting rod. Detailed Implementation
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.
[0015] Example. A thickness adjustment mechanism for asphalt waterproofing material, configured as follows: Figure 1-2 As shown, the device includes a support 1 located at the upper ends of both sides of the width of the asphalt pool, a drive roller 2 located at the rear of the support 1, and a circular tube 21 located inside the asphalt pool. The support 1 has a vertically arranged guide groove 3. The guide groove 3 has an upper support 4 and a lower support 5 that are vertically distributed and movable along the guide groove 3. The upper support 4 and the lower support 5 have rollers 8 for adjusting the thickness of the asphalt on the base fabric. The upper support 4 and the lower support 5 have a vertically arranged bidirectional screw 6 on one side. The bidirectional screw 6 has two sets of screw seats 7. The screw seats 7 are connected to the upper support 4 and the lower support 5 through an adjustment mechanism. The upper end of the bidirectional screw 6 has a drive mechanism for driving the bidirectional screw 6 to move.
[0016] The adjustment mechanism includes a base 9 located on the upper side of the lead screw seat 7. The base 9 is provided with a first wedge 10 that can move laterally along the base 9 and a support plate 19 perpendicular to the base 9. The inclined surface of the first wedge 10 is provided with a limiting groove 11, and a limiting block 12 is provided in the limiting groove 11. The upper end of the limiting block 12 is fixedly connected to a second wedge 13. The second wedge 13 is fixedly connected to the end face of the upper support 4 or the lower support 5. One end of the first wedge 10 is connected to an adjusting rod 20 provided in the support plate 19 through a connector 18.
[0017] The slope ratio of the first wedge 10 is 1:2.
[0018] The drive mechanism includes a rotating rod 16 located between the brackets 1, two sets of second bevel gears 15 on the rotating rod 16, a first bevel gear 14 mounted on a bidirectional lead screw 6 connected to one side of the second bevel gear 15, and a turntable 17 at the end of the rotating rod 16.
[0019] The principle of this utility model: This application is a further improvement on the applicant's previous patent number 201620287280.3. During the processing of asphalt waterproofing materials, the base fabric needs to pass through an asphalt tank to coat its surface with asphalt. The thickness of the asphalt on the base fabric surface is adjusted by rollers to remove excess asphalt. However, existing thickness adjustment mechanisms only adjust the position of the upper roller, leading to significant differences in asphalt thickness between the upper and lower sides of the base fabric, affecting the quality of the asphalt waterproofing material. This application uses a drive roller 2 to generate traction force on the waterproof membrane. Furthermore, the waterproof membrane will subsequently undergo double-sided lamination, cooling, and winding processes, which will further traction the movement of the waterproof membrane. This application is used to adjust the asphalt thickness on the surface of the tire base fabric exiting the asphalt tank. The circular tube and drive roller 2 in the asphalt tank guide the movement of the tire base fabric, while the roller 8 on the support 1 adjusts the asphalt thickness. This application has a two-stage adjustment function. The turntable 17 drives the rotating rod 16 to rotate, so that the second bevel gear 15 can drive the bidirectional lead screw 6 to rotate through its engagement with the first bevel gear 14. The first bevel gear 14 and the second bevel gear 15 are self-locking bevel gears. During the rotation of the bidirectional lead screw 6, the lead screw seat 7 moves closer or further away, and the roller 8 between the upper support 4 and the roller 8 between the lower support 5 changes distance from the tire base fabric equally, avoiding the technical problem of large differences in asphalt thickness on the upper and lower sides of the tire base fabric. The thickness of the asphalt on both sides of the base fabric can be further adjusted by rotating the adjusting rod 20 relative to the support plate 19. The adjusting rod is a screw, and the support plate 19 has a screw hole. This drives the first wedge block 10 to move along the base 9. The joint 18 is a universal joint. Furthermore, the base 9 can limit and guide the movement of the first wedge block 10 through the guide groove and guide block structure. During the movement of the first wedge block 10, it will drive the second wedge block 13 to move. The second wedge block 13 is fixedly connected to the upper side of the upper support 4 and the lower side of the lower support 5, thereby realizing the position of the upper support 4 and the lower support 5. The slope ratio of the first wedge block 10 is 1:2. For example, if the first wedge block 10 moves 2 cm laterally, the second wedge block 13 moves 1 cm vertically, which can improve the accuracy of adjustment and make the thickness adjustment more precise. This application can effectively adjust the thickness of the asphalt on both sides of the base fabric of the asphalt waterproof material, thereby improving the quality of the asphalt waterproof material.
Claims
1. A bitumen waterproofing material thickness adjustment mechanism, characterized by: The device includes a support (1) located on the upper ends of both sides of the width of the asphalt pool, a drive roller (2) located on the rear side of the support (1), and a circular tube (21) located inside the asphalt pool. The support (1) is provided with a vertically arranged guide groove (3). The guide groove (3) is provided with an upper support (4) and a lower support (5) that are distributed vertically and can move along the guide groove (3). The upper support (4) and the lower support (5) are provided with rollers (8) for adjusting the thickness of asphalt on the base fabric. A vertically arranged bidirectional screw (6) is provided on one side of the upper support (4) and the lower support (5). Two sets of screw seats (7) are provided on the bidirectional screw (6). The upper support (4) and the lower support (5) are connected to the screw seats (7) through an adjustment mechanism. The upper end of the bidirectional screw (6) is provided with a drive mechanism for driving the bidirectional screw (6) to move.
2. The asphalt waterproofing material thickness adjustment mechanism according to claim 1, characterized in that: The adjustment mechanism includes a base (9) located on the upper side of the lead screw seat (7). The base (9) is provided with a first wedge (10) that can move laterally along the base (9) and a support plate (19) perpendicular to the base (9). The inclined surface of the first wedge (10) is provided with a limiting groove (11). The limiting groove (11) is provided with a limiting block (12). The upper end of the limiting block (12) is fixedly connected to a second wedge (13). The second wedge (13) is fixedly connected to the end face of the upper support (4) or the lower support (5). One end of the first wedge (10) is connected to an adjusting rod (20) located in the support plate (19) through a connector (18).
3. The asphalt waterproofing material thickness adjustment mechanism according to claim 2, characterized in that: The slope ratio of the first wedge (10) is 1:
2.
4. The asphalt waterproofing material thickness adjustment mechanism according to claim 1, characterized in that: The drive mechanism includes a rotating rod (16) located between the brackets (1), two sets of second bevel gears (15) are provided on the rotating rod (16), a first bevel gear (14) is connected to one side of the second bevel gear (15) and mounted on the bidirectional lead screw (6), and a turntable (17) is provided at the end of the rotating rod (16).
Citation Information
Patent Citations
Device of adjustable thickness that oils
CN205436193U