Anti-deformation structure for rubber mixing mill scraper device
By incorporating a support structure consisting of a vertical blade, a dedicated gasket, and a pressure plate in the scraper assembly, the problem of scraper frame deformation due to gravity is solved, thereby improving the operational stability of the rubber mixing mill and the quality of the rubber compound.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-03-31
AI Technical Summary
The scraper holder of the rubber mixing mill will deform after prolonged use due to gravity, causing friction and heat generation when in contact with the rollers, which affects the quality of the rubber compound.
Multiple sets of vertical blades are installed in the scraper device. The top of the vertical blades is connected to a special pad and a pressure plate, and is supported by fixing screws and pull screws to prevent the vertical blades from loosening and to avoid the weight from accumulating on the main scraper frame.
It effectively prevents the scraper holder from deforming, reduces friction and heat generation, and improves the stability of the rubber compound quality.
Smart Images

Figure CN224060189U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of rubber mixing, in particular to a deformation prevention structure for a rubber mixing machine scraper device. BACKGROUND
[0002] Currently, the rubber mixing machine is used with a main scraper frame, which mainly functions to make the rubber material form a bulge to increase dispersion. However, the main scraper frame is too long, and due to the effect of gravity, it will deform into a U shape over time. The deformed part will directly contact the roller, causing friction and heating up. When the temperature is high, the rubber material will stick more easily, which can lead to quality problems.
[0003] In the prior art, a rubber mixing machine scraper device is disclosed in Patent No. CN209111280U, which includes a scraper frame and an adjusting mechanism. The scraper frame is installed with a scraper, and the adjusting mechanism is arranged below the scraper frame. The adjusting mechanism includes a pressure rod, a buffer device, a U-shaped support, and an adjusting screw rod. The upper end of the pressure rod is connected to the scraper frame, and the buffer device is arranged below the pressure rod. The buffer device includes a spring, a spring groove, and two groups of sliding blocks.
[0004] The above structure can absorb and buffer vibration through the arrangement of the spring, reducing the deformation of the scraper and the scraper frame. However, the screw is usually used to push the vertical knife against the directly below knife frame, and the knife frame is subjected to pressure from above, which further aggravates the deformation of the knife frame, and cannot solve the problem of deformation of the knife frame. SUMMARY
[0005] Therefore, the present application aims to provide a deformation prevention structure for a rubber mixing machine scraper device to solve the problem of deformation of the knife frame.
[0006] To achieve the above purpose, the present application provides a deformation prevention structure for a rubber mixing machine scraper device, which includes a main scraper frame. The inside of the main scraper frame is provided with a scraper device, and the top end of the main scraper frame is fixedly installed with an upper knife frame.
[0007] The scraper device includes multiple groups of vertical knives distributed in the main scraper frame. The top of each group of vertical knives is provided with a special gasket, and the top of the special gasket is connected with a pressure plate. A fixing screw is connected between the special gasket and the pressure plate, and the bottom end of the fixing screw extends to the top of the vertical knife. An upper pulling screw is fixedly connected between the pressure plate and the upper knife frame.
[0008] Preferably, each of the vertical knife and the special gasket is provided with at least four groups, and the pressure plate and the upper knife frame are arranged in parallel.
[0009] Preferably, each of the multiple groups of vertical knives is equally spaced in the inside of the main scraper frame, and the bottom end of the vertical knife abuts against the top of the main scraper frame.
[0010] Preferably, the length of the special gasket is less than the length of the vertical knife, and the special gasket is in a strip structure.
[0011] Preferably, the vertical knife and the main scraper holder are vertically arranged, and the vertical knife and the main scraper holder are fixedly connected through a screw.
[0012] Preferably, the upper pulling screw is arranged at the center of the upper knife holder and the pressing plate.
[0013] Preferably, the main scraper holder is in a character-shaped structure, and the inside of the main scraper holder is provided with a plurality of reinforcing ribs.
[0014] Advantages of the present application:
[0015] The upper pulling screw is arranged between the pressing plate and the upper knife holder in the scraper device, the special gasket and the pressing plate are fixedly connected through the fixing screw on both sides, when the pressing plate is pulled up, the vertical knife will be suspended, the special gasket between the pressing plate and the vertical knife prevents the vertical knife from loosening, avoids the weight accumulation on the main scraper holder, and further solves the deformation problem of the main scraper holder. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only illustrate the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.
[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present application;
[0018] Figure 2 It is a schematic diagram of the overall front view structure of the present application;
[0019] Figure 3 It is a schematic diagram of the internal structure of the scraper device of the present application.
[0020] In the figure, 1 is the main scraper holder, 2 is the vertical knife, 3 is the special gasket, 4 is the pressing plate, 5 is the upper knife holder, 6 is the upper pulling screw, and 7 is the fixing screw. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical solutions and advantages of the present application more clear, the following will further describe the present application in combination with specific embodiments.
[0022] As Figure 1 , Figure 2 , Figure 3As shown, an anti-deformation structure for a scraper device of a rubber mixing mill includes a main scraper frame 1, a scraper device is provided inside the main scraper frame 1, and an upper scraper frame 5 is fixedly installed on the top of the main scraper frame 1.
[0023] The scraper device includes multiple sets of vertical blades 2 distributed inside the main scraper holder 1. A special pad 3 is provided on the top of the multiple sets of vertical blades 2. A pressure plate 4 is connected to the top of the special pad 3. A fixing screw 7 is connected through the special pad 3 and the pressure plate 4. The bottom end of the fixing screw 7 extends to the top of the vertical blade 2. An upward pull screw 6 is fixedly connected between the pressure plate 4 and the upper blade holder 5.
[0024] In this embodiment, the entire assembly is installed to the rubber mixing mill via mounting block 10. Deformation adjustment is achieved by pulling up the pressure plate 4 and upper blade holder 5 through the pull screw 6. Both sides are fixedly supported by special washers 3 connected to the pressure plate 4 via fixing screws 7. When the pressure plate 4 is pulled up, the vertical blade 2 will be suspended in the air. The special washers 3 between the pressure plate 4 and the vertical blade 2 prevent the vertical blade 2 from loosening, avoiding weight accumulation on the main scraper holder 1, thereby solving the deformation problem of the main scraper holder 1.
[0025] As one implementation method, such as Figure 1 , Figure 2 , Figure 3 As shown, the vertical blade 2 and the special pad 3 are each provided with four sets, and the pressure plate 4 and the upper blade holder 5 are arranged in parallel vertically.
[0026] In this embodiment, the design of multiple sets of vertical blades 2 and special shims 3 means that when the pressure plate 4 is pulled up, the vertical blades 2 will be suspended in the air. The pressure plate 4 and the upper blade holder 5 are adjusted by pulling up the screw 6.
[0027] As one implementation method, such as Figure 2 As shown, multiple sets of vertical blades 2 are evenly distributed inside the main scraper holder 1, and the bottom end of the vertical blade 2 abuts against the top of the main scraper holder 1.
[0028] In this embodiment, multiple sets of vertical blades 2 cut the rubber material extruded from the rubber rollers of the rubber mixing mill, and at the same time, the vertical blades 2 can guide the cut rubber material.
[0029] As one implementation method, such as Figure 2 , Figure 3 As shown, the length of the special gasket 3 is less than the length of the blade 2, and the special gasket 3 has a long strip structure.
[0030] In this embodiment, a special shim 3 is used to support the top of the vertical blade 2, and the special shim 3 between the pressure plate 4 and the vertical blade 2 is used to prevent the vertical blade 2 from becoming loose.
[0031] As one implementation method, such as Figure 2 , Figure 3As shown, the vertical blade 2 and the main scraper holder 1 are vertically aligned and connected by screws.
[0032] In this embodiment, since the vertical blade 2 and the main scraper holder 1 are fixedly connected by screws, the vertical blade 2 can be tilted at an adjustable angle on the main scraper holder 1, which can change the direction of the cutting rubber material guided by the vertical blade 2.
[0033] As one implementation method, such as Figure 2 , Figure 3 As shown, the pull screw 6 is located at the center of the upper tool holder 5 and the pressure plate 4.
[0034] In this embodiment, the distance between the pressure plate 4 and the vertical blade 2 is adjusted by pulling up the pull screw 6 installed between the pressure plate 4 and the upper blade holder 5 to make deformation adjustment.
[0035] As one implementation method, such as Figure 1 , Figure 2 , Figure 3 As shown, the main scraper holder 1 has a straight structure, and the interior of the main scraper holder 1 is provided with multiple sets of reinforcing ribs.
[0036] In this embodiment, the load-bearing capacity of the main scraper frame 1 is increased and its deformation is reduced by thickening and hardening the main scraper frame 1.
[0037] Working principle: In use, the whole unit is installed with the rubber mixing machine through the mounting block 10. The deformation is adjusted by pulling up the pressure plate 4 and the upper blade holder 5 through the pull screw 6 inside the scraper device. The two sides are fixed and supported by the special shims 3 connected to the pressure plate 4 through the fixing screws 7. When the pressure plate 4 is pulled up, the vertical blade 2 will be suspended in the air. The special shims 3 between the pressure plate 4 and the vertical blade 2 prevent the vertical blade 2 from loosening and avoid the weight from accumulating on the main scraper holder 1, thereby solving the deformation problem of the main scraper holder 1.
[0038] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.
[0039] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.
Claims
1. A deformation-preventing structure for a mixer blade device, comprising a main blade holder (1), the inside of the main blade holder (1) being provided with a blade device, and the top end of the main blade holder (1) being fixedly provided with an upper blade holder (5), characterized in that ; The scraper device comprises a plurality of groups of vertical knives (2) distributed in the main scraper frame (1), the top of the plurality of groups of vertical knives (2) is provided with a special gasket (3), the top of the special gasket (3) is connected with a pressing plate (4), a fixing screw (7) is connected through the special gasket (3) and the pressing plate (4), the bottom end of the fixing screw (7) extends to the top of the vertical knife (2), and the pressing plate (4) and the upper knife holder (5) are fixedly connected with an upper pulling screw (6).
2. A deformation preventing structure for a banburying machine doctor blade according to claim 1, wherein The vertical knife (2) and the special gasket (3) are each provided with at least four groups, and the pressing plate (4) and the upper knife holder (5) are arranged in parallel.
3. The deformation prevention structure for the scraper device of the rubber mixing machine according to claim 1, characterized in that, The plurality of groups of vertical knives (2) are equidistantly arranged in the interior of the main scraper frame (1), and the bottom end of the vertical knife (2) abuts against the top of the main scraper frame (1).
4. A deformation preventing structure for a banbury knife apparatus according to claim 3, wherein The length of the special gasket (3) is less than the length of the vertical knife (2), and the special gasket (3) is a long strip structure.
5. The deformation prevention structure for the scraper device of the rubber mixing machine according to claim 3, characterized in that, The vertical knife (2) and the main scraper frame (1) are vertically arranged in correspondence, and the vertical knife (2) and the main scraper frame (1) are fixedly connected through a screw.
6. The deformation prevention structure for the scraper device of the rubber mixing machine according to claim 3, characterized in that, The upper pulling screw (6) is arranged at the center of the upper knife holder (5) and the pressing plate (4).
7. A deformation preventing structure for a banburying machine doctor blade according to claim 3, wherein The main scraper frame (1) is a character-shaped structure, and a plurality of reinforcing ribs are arranged in the interior of the main scraper frame (1).
Citation Information
Patent Citations
Rubber mixing mill scraper device
CN209111280U