Buffer device for variable-speed conveying of printing machine
By employing a buffer device consisting of floating guide rollers and spring assemblies in the variable speed conveyor system of the printing press, the problem of roll tension fluctuation was solved, achieving stable conveying and equipment safety.
Patent Information
- Application Number
- CN202520014894.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-05
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-01-05
AI Technical Summary
Existing printing press material conveying systems cannot effectively control roll tension fluctuations when speed changes, leading to unstable conveying, increased risk of roll breakage, and impact on printing quality and equipment damage.
Design a buffer device for variable speed conveying in a printing press, including a floating guide roller and a spring assembly. The floating guide roller is connected to a floating base and the spring provides force balance to reduce tension fluctuations.
It significantly reduces the tension fluctuation of the roll material, avoids roll material breakage, and improves the stability of conveying and the safety of equipment operation.
Smart Images
Figure CN223575784U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the field of printing equipment, and particularly relates to a buffering device for variable-speed conveying of a printing machine. BACKGROUND
[0002] In a printing operation, the working speed of a printing machine often needs to be adjusted according to different production requirements and process requirements. This requirement for speed change poses a high challenge to the smooth conveying of materials. However, the existing buffering mechanism in the material conveying system of a printing machine often has significant problems when dealing with such speed changes. Specifically, when the speed of the printing machine changes, the existing buffering mechanism often cannot effectively control the tension fluctuation of the roll material. Such tension fluctuation not only causes unstable conveying of the roll material, affecting the printing quality, but also increases the risk of the roll material being pulled apart. Once the roll material is broken, not only will the printing process be interrupted, causing production stagnation, but also the printing equipment will be damaged, increasing the maintenance cost and time cost. Therefore, it is necessary to solve the above technical problems. CONTENT OF THE UTILITY MODEL
[0003] The purpose of the embodiment of the present application is to provide a buffering device for variable-speed conveying of a printing machine to solve the technical problem of large tension fluctuation of a roll material in the prior art.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present application is to provide a buffering device for variable-speed conveying of a printing machine, comprising:
[0005] a wall plate;
[0006] a feeding assembly installed on the wall plate and comprising a parallel unwinding shaft and a traction roller;
[0007] a buffering assembly comprising a guide rod and a support connected to both ends of the guide rod, further comprising a floating seat slidingly connected to the guide rod and springs arranged on both sides of the floating seat, the support being connected to the wall plate, the extension direction of the guide rod and the elastic direction of the springs being parallel to the height direction of the wall plate, both ends of the springs further abutting against the support and the floating seat and balancing the force of the floating seat, the feeding assembly further comprising a floating guide roller arranged between the unwinding shaft and the traction roller, the floating guide roller being connected to the floating seat;
[0008] a traction motor in transmission connection with the traction roller and used for driving the traction roller.
[0009] Optionally, the spring is sleeved on the guide rod and coaxially arranged with the guide rod.
[0010] Optionally, the spring, the guide rod and the support are correspondingly arranged in at least two groups and connected to the same floating seat.
[0011] Optionally, a plurality of floating guide rollers are connected side by side on the floating seat.
[0012] Optionally, the feeding assembly further comprises a plurality of fixed guide rollers connected to the wall plate.
[0013] The fixed guide rollers are arranged between the unwinding shaft and the traction roller and parallel to the floating guide rollers.
[0014] Optionally, the floating guide rollers and the guide rods are arranged on both sides of the wall plate, and the wall plate is further provided with corresponding hollows for connecting the floating guide rollers and the floating seat.
[0015] Optionally, the wall plate is provided with an open clamping groove.
[0016] The unwinding shaft is detachably connected to the wall plate through the clamping groove.
[0017] Optionally, the feeding assembly further comprises a bearing, a rotating shaft, a movable clamp, a fixed clamp, a handle, a pin shaft and a U-shaped pull rod.
[0018] The bearing is coaxially sleeved on both ends of the unwinding shaft, the rotating shaft is rotatably installed on the wall plate below the clamping groove and parallel to the unwinding shaft, the movable clamp is connected to the rotating shaft and can rotate around the rotating shaft, the fixed clamp is connected to the wall plate, the handle is hinged to the fixed clamp, the pin shaft is connected to the handle and both ends of the U-shaped pull rod are connected to the pin shaft, the end of the movable clamp away from the rotating shaft is clamped with the U-shaped pull rod, and the bearing is clamped between the movable clamp and the fixed clamp.
[0019] Optionally, the feeding assembly further comprises a pneumatic cylinder, a main shaft, a rocker arm and a swing arm.
[0020] The pneumatic cylinder is installed on the wall plate, the main shaft is rotatably installed at the bottom end of the wall plate, one end of the rocker arm is hinged to the main shaft, the other end is hinged to the power end of the pneumatic cylinder and can be driven by the pneumatic cylinder to reciprocate and deflect, the swing arm is connected to the main shaft and can rotate with the rocker arm, a feeding groove adapted to the unwinding shaft is formed on the swing arm, and the clamping groove is located on the moving path of the feeding groove.
[0021] The buffer device for variable-speed conveying of a printing machine provided by the application has the beneficial effect that, compared with the prior art, in the buffer device for variable-speed conveying of a printing machine, the floating guide roller for buffering conveying is connected to the floating seat. Since the floating seat is slidingly connected to the guide rod and the spring is arranged on both sides of the floating seat and makes the floating seat form a force balance state, when the traction roller is driven by the traction motor to change speed, the target roll passing through the floating guide roller only needs a small force to drive the floating guide roller and the floating seat to move relative to the guide rod and quickly reach a new balance state, which is beneficial to significantly reduce the tension fluctuation of the target roll and effectively avoid the target roll from being pulled off, and is much better than the prior art. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.
[0023] Figure 1 The overall structure of the buffer device for variable-speed conveying of a printing machine in the embodiment of the application Figure 1 ;
[0024] Figure 2 The overall structure of the buffer device for variable-speed conveying of a printing machine in the embodiment of the application Figure 2 ;
[0025] Figure 3 The overall structure of the buffer device for variable-speed conveying of a printing machine in the embodiment of the application
[0026] Figure 4 The overall structure of the buffer device for variable-speed conveying of a printing machine in the embodiment of the application
[0027] Figure 5 The overall structure of the buffer device for variable-speed conveying of a printing machine in the embodiment of the application Figure 1 The enlarged view of the structure at A in FIG.
[0028] In the drawings, the reference signs are as follows: 100, wallboard; 101, hollow; 102, clamping groove; 201, unwinding shaft; 202, traction roller; 203, floating guide roller; 204, fixed guide roller; 205, bearing; 206, rotating shaft; 207, movable clamp; 208, fixed clamp; 209, handle; 210, pin shaft; 211, U-shaped pull rod; 212, air cylinder; 213, rocker arm; 214, swing arm; 215, feeding groove; 301, guide rod; 302, support; 303, floating seat; 304, spring; 400, traction motor; 500, main shaft. DETAILED DESCRIPTION
[0029] In order to make the technical problems to be solved, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.
[0030] It should be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element.
[0031] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0032] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.
[0033] Please refer to Figures 1 to 5 , now a kind of buffer device for printing machine variable speed conveying provided by the embodiment of the present application will be described. The buffer device for printing machine variable speed conveying includes wallboard 100, send roll assembly, buffer assembly and traction motor 400. Wherein:
[0034] The wallboard 100 is provided with a feeding assembly, which comprises a parallel unwinding shaft 201 and a traction roller 202; the buffer assembly comprises a guide rod 301 and a support 302 connected to the two ends of the guide rod 301, and further comprises a floating seat 303 slidably connected to the guide rod 301 and springs 304 arranged on the two sides of the floating seat 303; the support 302 is connected to the wallboard 100, the extension direction of the guide rod 301 and the elastic direction of the springs 304 are parallel to the height direction of the wallboard 100, and the two ends of the springs 304 abut against the support 302 and the floating seat 303 respectively and balance the force of the floating seat 303; the feeding assembly further comprises a floating guide roller 203 arranged between the unwinding shaft 201 and the traction roller 202, and the floating guide roller 203 is connected to the floating seat 303; and a traction motor 400 is in transmission connection with the traction roller 202 and is used to drive the traction roller 202.
[0035] According to the above structure provided in the embodiment, in the buffer device for the variable-speed conveying of the printing machine, the floating guide roller 203 for buffering the conveying is connected to the floating seat 303. Since the floating seat 303 is slidably connected to the guide rod 301 and the springs 304 are arranged on the two sides of the floating seat 303 and balance the force of the floating seat 303, when the traction motor 400 drives the traction roller 202 to change the speed, the target roll material passing through the floating guide roller 203 only needs a small force to drive the floating guide roller 203 and the floating seat 303 to move relative to the guide rod 301 and quickly reach a new balance state, which is beneficial to significantly reduce the tension fluctuation of the target roll material and effectively avoid the target roll material from being pulled off, which is much better than the prior art.
[0036] In another embodiment of the present application, please refer to Figures 1 to 5 The springs 304 are coaxially arranged on the guide rod 301. According to the above structure provided in the embodiment, the springs 304 coaxially arranged on the guide rod 301 can be more stably stretched or compressed, which is beneficial to further reduce the pressure fluctuation of the target roll material.
[0037] In another embodiment of the present application, please refer to Figures 1 to 5 The springs 304, the guide rod 301 and the support 302 are correspondingly arranged in at least two groups and connected to the same floating seat 303. According to the above structure provided in the embodiment, the floating seat 303 slidably connected to the at least two groups of guide rods 301 can form better movement stability, which is beneficial to further reduce the pressure fluctuation of the target roll material.
[0038] In another embodiment of the present application, please refer to Figures 1 to 5The plurality of floating guide rollers 203 are connected side by side on the floating seat 303. According to the above structure provided in the embodiment, the plurality of floating guide rollers 203 can make the stress on the target roll material more dispersed, which is conducive to more effectively avoiding the target roll material from being pulled apart.
[0039] In another embodiment of the present application, please refer to Figures 1 to 5 The feeding assembly further comprises a plurality of fixed guide rollers 204 connected to the wall plate 100; the fixed guide rollers 204 are arranged between the unwinding shaft 201 and the traction roller 202 and parallel to the floating guide rollers 203. According to the above structure provided in the embodiment, the fixed guide rollers 204 connected to the wall plate 100 can cooperate with the floating guide rollers 203 to convey the target roll material, so that part of the weight of the target roll material can be borne by the fixed guide rollers 204, which is conducive to further reducing the pressure fluctuation of the target roll material during variable-speed conveying.
[0040] In another embodiment of the present application, please refer to Figures 1 to 5 The floating guide rollers 203 and the guide rods 301 are arranged on both sides of the wall plate 100, and the wall plate 100 is further provided with corresponding hollows 101 for connecting the floating guide rollers 203 and the floating seat 303. According to the above structure provided in the embodiment, the arrangement of the hollows 101 on the wall plate 100 can make the floating guide rollers 203 have a larger width, which is conducive to making the buffer device for variable-speed conveying of the printing machine in the embodiment applicable to more working conditions.
[0041] In another embodiment of the present application, please refer to Figures 1 to 5 The wall plate 100 is provided with an open clamping groove 102; the unwinding shaft 201 is detachably connected to the wall plate 100 through the clamping groove 102. According to the above structure provided in the embodiment, the detachable connection of the unwinding shaft 201 to the wall plate 100 through the clamping groove 102 is conducive to quickly installing a new roll material, which is conducive to significantly improving the feeding efficiency of the buffer device for variable-speed conveying of the printing machine in the embodiment.
[0042] In another embodiment of the present application, please refer to Figures 1 to 5, the sending roll assembly further comprises a bearing 205, a rotating shaft 206, a movable clamp 207, a fixed clamp 208, a handle 209, a pin shaft 210 and a U-shaped pull rod 211; the bearing 205 is coaxially sleeved on both ends of the unwinding shaft 201, the rotating shaft 206 is rotatably installed on the wallboard 100 below the clamping groove 102 and parallel to the unwinding shaft 201, the movable clamp 207 is connected to the rotating shaft 206 and can rotate around the rotating shaft 206, the fixed clamp 208 is connected to the wallboard 100, the handle 209 is hinged to the fixed clamp 208, the pin shaft 210 is connected to the handle 209 and both ends of the U-shaped pull rod 211 are connected to the pin shaft 210, the end of the movable clamp 207 away from the rotating shaft 206 is clamped with the U-shaped pull rod 211, and the bearing 205 is clamped between the movable clamp 207 and the fixed clamp 208. According to the above structure provided in the embodiment, the movable clamp 207 clamped with the U-shaped pull rod can stably clamp the bearing 205 connected to both ends of the unwinding shaft 201 in cooperation with the fixed clamp 208 connected to the wallboard 100, so that the unwinding shaft 201 can be more stably installed in the clamping groove 102 and the operation stability of the buffer device for variable-speed conveying of the printing machine in the embodiment can be significantly improved. It can be understood that when a new roll needs to be installed, the U-shaped pull rod 211 and the movable clamp 207 can be separated by rotating the handle 209, so that the unwinding shaft 201 can be conveniently taken out of the clamping groove 102.
[0043] In another embodiment of the present application, please refer to Figures 1 to 5 , the sending roll assembly further comprises a cylinder 212, a main shaft 500, a rocker arm 213 and a swing arm 214; the cylinder 212 is installed on the wallboard 100, the main shaft 500 is rotatably installed at the bottom end of the wallboard 100, one end of the rocker arm 213 is hinged to the main shaft 500 and the other end is hinged to the power end of the cylinder 212 and can be driven to reciprocatingly deflect by the cylinder 212, the swing arm 214 is connected to the main shaft 500 and can rotate with the rocker arm 213, a feeding groove 215 adapted to the unwinding shaft 201 is formed on the swing arm 214, and the clamping groove 102 is located on the moving path of the feeding groove 215. According to the above structure provided in the embodiment, since the feeding groove 215 provided on the swing arm 214 is adapted to the unwinding shaft 201 and the clamping groove 102 is located on the moving path of the feeding groove 215, the operator can first put the unwinding shaft 201 with the installed roll into the feeding groove 215, and then drive the swing arm 214 to swing by the cylinder 212 to transfer and lift the unwinding shaft 201 into the clamping groove 102, so that the labor consumption can be significantly reduced, and the feeding efficiency of the buffer device for variable-speed conveying of the printing machine in the embodiment can be further improved.
[0044] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A buffer device for variable speed conveying in a printing press, characterized in that, include: Wall panel (100); The winding assembly is mounted on the wall panel (100) and includes a winding shaft (201) and a traction roller (202) that are parallel to each other. The buffer assembly includes a guide rod (301) and supports (302) connected to both ends of the guide rod (301), and also includes a floating seat (303) slidably connected to the guide rod (301) and springs (304) disposed on both sides of the floating seat (303). The supports (302) are connected to the wall panel (100). The extension direction of the guide rod (301) and the elastic direction of the spring (304) are both parallel to the height direction of the wall panel (100). The two ends of the spring (304) also abut against the supports (302) and the floating seat (303) respectively and balance the force on the floating seat (303). The winding assembly also includes a floating guide roller (203) disposed between the unwinding shaft (201) and the traction roller (202). The floating guide roller (203) is connected to the floating seat (303). A traction motor (400) is connected to the traction roller (202) and is used to drive the traction roller (202).
2. The buffer device for variable speed conveying in a printing press as described in claim 1, characterized in that: The spring (304) is fitted onto the guide rod (301) and is coaxially arranged with the guide rod (301).
3. The buffer device for variable speed conveying in a printing press as described in claim 2, characterized in that: The spring (304), the guide rod (301), and the support (302) are provided in at least two sets and connected to the same floating seat (303).
4. The buffer device for variable speed conveying in a printing press as described in claim 3, characterized in that: Multiple floating guide rollers (203) are connected side by side on the floating seat (303).
5. The buffer device for variable speed conveying in a printing press as described in claim 4, characterized in that: The winding assembly also includes a plurality of fixed guide rollers (204) connected to the wall panel (100). The fixed guide roller (204) is disposed between the unwinding shaft (201) and the traction roller (202) and is parallel to the floating guide roller (203).
6. The buffer device for variable speed conveying in a printing press as described in claim 1, characterized in that: The floating guide roller (203) and the guide rod (301) are disposed on both sides of the wall panel (100), and the wall panel (100) is also provided with corresponding cutouts (101) for the floating guide roller (203) and the floating seat (303) to be connected.
7. The buffer device for variable speed conveying in a printing press as described in claim 1, characterized in that: An open slot (102) is formed on the wall panel (100); The unwinding shaft (201) is detachably connected to the wall panel (100) via the slot (102).
8. The buffer device for variable speed conveying in a printing press as described in claim 7, characterized in that: The winding assembly also includes a bearing (205), a rotating shaft (206), a moving clamp (207), a fixed clamp (208), a handle (209), a pin (210), and a U-shaped pull rod (211). The bearing (205) is coaxially mounted on both ends of the unwinding shaft (201). The rotating shaft (206) is rotatably mounted on the wall panel (100) below the slot (102) and parallel to the unwinding shaft (201). The movable clamp (207) is connected to the rotating shaft (206) and can rotate around the rotating shaft (206). The fixed clamp (208) is connected to the wall panel (100). The handle (209) is hinged to the fixed clamp (208). The pin (210) is connected to the handle (209) and both ends of the U-shaped pull rod (211) are connected to the pin (210). The end of the movable clamp (207) away from the rotating shaft (206) is engaged with the U-shaped pull rod (211). The bearing (205) is clamped between the movable clamp (207) and the fixed clamp (208).
9. The buffer device for variable speed conveying in a printing press as described in claim 8, characterized in that: The winding assembly also includes a cylinder (212), a main shaft (500), a rocker arm (213), and a swing arm (214). The cylinder (212) is mounted on the wall panel (100). The main shaft (500) is rotatably mounted on the bottom end of the wall panel (100). One end of the rocker arm (213) is hinged to the main shaft (500), and the other end is hinged to the power end of the cylinder (212) and can be driven by the cylinder (212) to reciprocate. The swing arm (214) is connected to the main shaft (500) and can rotate with the rocker arm (213). A feeding groove (215) adapted to the unwinding shaft (201) is formed on the swing arm (214). The slot (102) is located on the moving path of the feeding groove (215).