A feeding device for cardboard production

Abstract

This utility model discloses a feeding device for cardboard production, including a base, a tension adjustment mechanism in the middle of the base, and feeding mechanisms at both ends of the base. Through this structure, the tension adjustment mechanism, via a worm gear transmission, a threaded rod, a sliding block, and a limiting rod, constructs a tension adjustment mechanism, enabling the adjustment of raw material tension, improving cardboard product quality, and ensuring cardboard production efficiency. The feeding mechanism, through the cooperation of an infrared transmitter, receiver, and alarm, achieves automatic and accurate alarm for material shortage. The infrared transmitter and receiver are horizontally positioned below the raw material rod; when raw material is sufficient, the infrared light is blocked; when raw material is insufficient, the infrared signal is received and triggers the alarm. This avoids the untimely nature of manual inspections and the false alarms and missed alarms of traditional monitoring devices, promptly reminding workers to replenish materials and ensuring the continuity of cardboard production.

Description

Technical Field

[0001] This utility model relates to the field of paperboard production equipment technology, and in particular to a feeding device in the paperboard production process. Background Technology

[0002] In the paperboard production process, the feeding device is a key piece of equipment to ensure continuous production. Its main function is to stably transport the paperboard raw material rolls to the subsequent processing steps.

[0003] Most existing feeding devices lack an effective tension adjustment mechanism. During the conveying process, the tension of the cardboard raw material is easily unstable due to factors such as changes in the diameter of the raw material roll and fluctuations in the conveying speed. This can lead to breakage or wrinkling of the raw material, causing production interruptions, directly affecting the quality of subsequent cardboard processing, increasing the scrap rate, and requiring frequent machine stops for adjustments, severely reducing production efficiency. Furthermore, the material shortage monitoring of existing feeding devices relies heavily on manual inspections. Staff need to check the remaining amount of raw material rolls regularly, which not only increases labor intensity but also presents the problem of untimely monitoring. When raw material is depleted, if it is not detected and replenished in time, the production equipment will run idle, wasting energy and causing economic losses to the company. Utility Model Content

[0004] The purpose of this invention is to provide a feeding device for the paperboard production process, which can adjust the conveying tension of paperboard raw materials and realize automatic and accurate alarm for material shortage.

[0005] To achieve the above objectives, a feeding device for paperboard production is provided, including a base, a tension adjusting mechanism in the middle of the base, and feeding mechanisms at both ends of the base; The tension adjustment mechanism includes a first motor, with a worm gear fixedly connected to the output end of the first motor. Both ends of the worm gear are threadedly connected to worm wheels. A threaded rod is fixedly connected to the middle of the worm wheels. A sliding block is threadedly connected through the middle of the threaded rod. A first connecting rod is rotatably connected to one end of the sliding block. A first fixing block is fixedly connected to one end of the first connecting rod. A tension rod is fixedly connected to the other end of the first connecting rod. A top plate is rotatably connected to one end of the threaded rod. A protective shell is fixedly connected to the bottom surface of the top plate. A limit rod is fixedly connected to the bottom surface of the top plate.

[0006] According to the aforementioned feeding device for cardboard production, the feeding mechanism includes a first support plate, an infrared emitter fixedly connected to the side of the first support plate, a third connecting rod rotatably connected to the bottom of the first support plate, both ends of the third connecting rod rotatably connected to a base, a second connecting rod rotatably connected to the middle of the first support plate, one end of the second connecting rod being threadedly connected to a second fixing block, and the other end of the second connecting rod being fixedly connected to a raw material rod, a second support plate fixedly connected to the top of the base, a second motor fixedly connected to the side of the second support plate, the output end of the second motor being fixedly connected to the raw material rod, an infrared receiver fixedly connected to the side of the second support plate, a wire fixedly connected to the side of the infrared receiver, one end of the wire being fixedly connected to an alarm, a third support plate fixedly connected to the other end of the base, a rotating rod rotatably connected to the middle of the third support plate, and a third fixing block fixedly connected to one end of the rotating rod.

[0007] According to the feeding device in the paperboard production process, the first motor is fixedly connected to the side of the base, and one end of the worm gear passes through the side of the base and is fixedly connected to the output end of the first motor. The first motor drives the worm gear to rotate, and the worm gear drives the worm wheel to rotate through the thread. When the worm wheel rotates, it can drive the threaded rods on both sides to rotate synchronously, ensuring that the two sliding blocks are at the same height.

[0008] According to the feeding device in the paperboard production process, one end of the limiting rod is fixedly connected to the top plate, and the other end of the limiting rod is fixedly connected to the base. The middle part of the limiting rod passes through and is slidably connected to the sliding block. There are two limiting rods, which are symmetrically distributed about the center plane of the base. They can limit the rotation of the sliding block, ensure that the sliding block moves smoothly only along the axial direction, avoid the tension rod from deviating due to the rotation of the sliding block, ensure that the tension rod can accurately adjust the tension of the paperboard raw material, and prevent the raw material from breaking or wrinkling due to tension adjustment deviation.

[0009] According to the feeding device in the paperboard production process, one end of the threaded rod is connected through and fixed to the worm gear, the bottom of the threaded rod is rotatably connected to the base, and the other end of the threaded rod is rotatably connected to the top plate, so that the threaded rod always maintains a stable axial position during rotation, without deviation or tilting, thereby ensuring that the rotation speed and angle of the threaded rods on both sides are completely consistent, driving the sliding blocks on both sides to move synchronously, so that the tension rod is subjected to balanced force at both ends, avoiding the problem of excessive or insufficient local tension of the raw material due to the inconsistent height of the two ends of the tension rod.

[0010] According to the feeding device in the paperboard production process, there are two third support plates, which are symmetrically distributed about the center face of the base. This ensures that the force on both ends of the rotating rod can be evenly transmitted to the support plate and the base during the auxiliary material conveying process, preventing the rotating rod from tilting or bending due to excessive force on one side, and ensuring that the rotating rod always remains horizontal.

[0011] According to the feeding device in the paperboard production process, the infrared transmitter and the infrared receiver are located on the same horizontal plane. Both the infrared transmitter and the infrared receiver are located below the raw material rod. When the raw material roll is placed on the raw material rod, the raw material roll will naturally block the horizontally transmitted infrared light. When the raw material gradually decreases to the point where the remaining amount is insufficient, the blocking object disappears, and the infrared light can be quickly captured by the infrared receiver, realizing accurate identification of the material shortage state and avoiding false alarms or missed alarms.

[0012] According to the feeding device in the paperboard production process, the bottom shape of the first support plate is semi-circular.

[0013] This utility model has the following beneficial effects: 1. Compared with existing technologies, this device constructs a tension adjustment mechanism through worm gear transmission in conjunction with a threaded rod, a sliding block, and a limiting rod. The first motor drives the worm gear to rotate, which in turn drives the worm wheels and the threaded rod on both sides to rotate synchronously. The limiting rod restricts the rotation of the sliding block and makes it move smoothly along the axial direction, thereby driving the tension rod to adjust its height, realizing the adjustment of the raw material tension. This avoids the raw material from breaking due to excessive tension or wrinkling due to insufficient tension, thus improving the quality of paperboard products and ensuring paperboard production efficiency.

[0014] 2. Compared with existing technologies, this device achieves automatic and accurate alarm for material shortages through the cooperation of an infrared transmitter, receiver, and alarm. The infrared transmitter and receiver are horizontally positioned below the raw material rod. When there is sufficient raw material, the infrared light is blocked; when there is insufficient raw material, the infrared signal is received and the alarm is triggered. This avoids the untimely nature of manual inspections and the false alarms and missed alarms of traditional monitoring devices. It can promptly remind staff to replenish materials, effectively prevent production interruptions, and ensure the continuity of cardboard production. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the overall structure of a feeding device in the paperboard production process according to the present invention; Figure 2 This is a schematic diagram of the internal structure of a feeding device in the paperboard production process according to the present invention; Figure 3 This utility model relates to a feeding device for the paperboard production process. Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 This utility model relates to a feeding device for the paperboard production process. Figure 2 Enlarged view of the structure at point B in the middle; Figure 5 This utility model relates to a feeding device for the paperboard production process. Figure 2 Enlarged view of the structure at point C.

[0016] Legend: 1. Base; 2. Tension adjustment mechanism; 3. Feeding mechanism; 21. First motor; 22. Worm gear; 23. Worm wheel; 24. Threaded rod; 25. Protective shell; 26. Limiting rod; 27. Sliding block; 28. First connecting rod; 29. ​​First fixing block; 210. Tension rod; 211. Top plate; 31. First support plate; 32. Infrared transmitter; 33. Second connecting rod; 34. Raw material rod; 35. Second fixing block; 36. Second support plate; 37. Infrared receiver; 38. Wire; 39. Third support plate; 310. Third fixing block; 311. Rotating rod; 312. Alarm; 313. Third connecting rod; 314. Second motor. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] Reference Figure 1-5This utility model discloses a feeding device for cardboard production, comprising a base 1, a tension adjusting mechanism 2 in the middle of the base 1, and feeding mechanisms 3 at both ends of the base 1. Each feeding mechanism 3 includes a first support plate 31 with a semi-circular bottom. An infrared emitter 32 is fixedly connected to the side of the first support plate 31. A third connecting rod 313 is rotatably connected to the bottom of the first support plate 31, with both ends of the third connecting rod 313 rotatably connected to the base 1. A second connecting rod 33 is rotatably connected to the middle of the first support plate 31. One end of the second connecting rod 33 is threadedly connected to a second fixing block 35, and the other end is fixedly connected to a raw material rod 34. A second support plate 36 is fixedly connected to the top of the base 1. A second motor 314 is fixedly connected to the side of the second support plate 36, and the output end of the second motor 314 is fixedly connected to the raw material rod 34. An infrared receiver 37 is fixedly connected to the side of the second support plate 36. The positions of the infrared emitter 32 and the infrared receiver 37 are... On the same horizontal plane, the infrared transmitter 32 and the infrared receiver 37 are both located below the raw material rod 34. When the raw material roll is sleeved on the raw material rod 34, the raw material roll will naturally block the horizontally transmitted infrared rays. When the raw material gradually decreases to the point where the remaining amount is insufficient, the blocking object disappears, and the infrared rays can be quickly captured by the infrared receiver 37 to achieve accurate identification of the material shortage state and avoid false alarms or missed alarms. The side of the infrared receiver 37 is fixedly connected to the wire 38, and one end of the wire 38 is fixedly connected to the alarm 312. The other end of the base 1 is fixedly connected to the third support plate 39. There are two third support plates 39, which are symmetrically distributed about the center plane of the base 1 so that the force on both ends of the rotating rod 311 can be evenly transmitted to the support plate and the base 1 during the auxiliary raw material conveying process. This prevents the rotating rod 311 from tilting or bending due to excessive force on one side and ensures that the rotating rod 311 always remains horizontal. The middle of the third support plate 39 is rotatably connected to the rotating rod 311, and one end of the rotating rod 311 is fixedly connected to the third fixing block 310. The tension adjustment mechanism 2 includes a first motor 21, which is fixedly connected to the side of the base 1. One end of a worm gear 22 passes through the side of the base 1 and is fixedly connected to the output end of the first motor 21. The first motor 21 drives the worm gear 22 to rotate, and the worm gear 22 drives the worm wheel 23 to rotate through a thread. When the worm wheel 23 rotates, it can drive the threaded rods 24 on both sides to rotate synchronously, ensuring that the two sliding blocks 27 are at the same height. The output end of the first motor 21 is fixedly connected to the worm gear 22, and both ends of the worm gear 22 are threadedly connected to the worm wheel 23. The middle of the worm wheel 23 is fixedly connected to the threaded rod 24. One end of the threaded rod 24 passes through and is fixedly connected to the worm wheel 23. The bottom of the threaded rod 24 is rotatably connected to the base 1, and the other end of the threaded rod 24 is rotatably connected to the top plate 211, so that the threaded rod 24 always maintains a stable axial position during rotation and will not deviate or tilt. This ensures that the rotation speed and angle of the threaded rods 24 on both sides are completely consistent, driving the sliding blocks 27 on both sides to move synchronously, so that the tension rod 210 is subjected to balanced force at both ends, and preventing the raw material from being affected by tension. The uneven height at both ends of rod 210 causes localized issues of excessive or insufficient tension. A sliding block 27 is threaded through the middle of threaded rod 24 and connected by a thread. One end of sliding block 27 is rotatably connected to a first connecting rod 28. One end of the first connecting rod 28 is fixedly connected to a first fixing block 29. The other end of the first connecting rod 28 is fixedly connected to a tension rod 210. One end of threaded rod 24 is rotatably connected to a top plate 211. A protective shell 25 is fixedly connected to the bottom surface of top plate 211, and a limit rod 26 is fixedly connected to the bottom surface of top plate 211. One end of the limiting rod 26 is fixedly connected to the top plate 211, and the other end of the limiting rod 26 is fixedly connected to the base 1. The middle part of the limiting rod 26 passes through and is slidably connected to the sliding block 27. There are two limiting rods 26, which are symmetrically distributed about the center plane of the base 1. They can limit the rotation of the sliding block 27, ensure that the sliding block 27 moves smoothly only along the axial direction, and avoid the tension rod 210 from deviating due to the rotation of the sliding block 27. This ensures that the tension rod 210 can accurately adjust the tension of the paperboard material and prevent the material from breaking or wrinkling due to the deviation in tension adjustment.

[0019] Working principle: The cardboard raw material roll is placed on the raw material rod 34. The first support plate 31 is rotated to an upright position. By rotating the second fixing block 35, it is tightly connected to the second connecting rod 33, thus fixing the raw material roll. The infrared transmitter 32 is turned on to establish a horizontal infrared light path with the infrared receiver 37. The second motor 314 is started, which drives the raw material rod 34 to rotate. The raw material roll releases the cardboard raw material as the raw material rod 34 rotates. The raw material passes through the tension rod 210 and the rotating rod 311 in sequence and is conveyed to the subsequent cardboard production equipment. The rotating rod 311 rotates synchronously under the action of the raw material. Due to the symmetrical distribution of the third support plate 39, the rotating rod 311 always remains horizontal, thus maintaining the original... The material roll acts as a stable guide to prevent material deviation. If tension adjustment is required, the first motor 21 is activated, driving the worm gear 22 to rotate. The worm gear 22 drives the worm wheels 23 at both ends to rotate synchronously, which in turn drives the threaded rod 24 to rotate. The sliding block 27 moves up and down along the axial direction of the threaded rod 24, and the sliding block 27 drives the tension rod 210 to rise and fall synchronously, thereby adjusting the material tension. When the material gradually decreases and the remaining amount is insufficient, the material roll can no longer block the infrared rays. After receiving the infrared signal, the infrared receiver 37 transmits the signal to the alarm 312 through the wire 38. The alarm 312 emits an audible and visual alarm to remind the staff to replace the material roll in time to ensure continuous production.

[0020] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A feeding device for a cardboard production process, characterized in that, Includes a base (1), a tension adjustment mechanism (2) is provided in the middle of the base (1), and a feeding mechanism (3) is provided at both ends of the base (1); The tension adjustment mechanism (2) includes a first motor (21), the output end of which is fixedly connected to a worm gear (22). Both ends of the worm gear (22) are connected to worm wheels (23) by threads. The middle of the worm wheel (23) is fixedly connected to a threaded rod (24). The middle of the threaded rod (24) is threaded through and connected to a sliding block (27). One end of the sliding block (27) is rotatably connected to a first connecting rod (28). One end of the first connecting rod (28) is fixedly connected to a first fixing block (29). The other end of the first connecting rod (28) is fixedly connected to a tension rod (210). One end of the threaded rod (24) is rotatably connected to a top plate (211). The bottom surface of the top plate (211) is fixedly connected to a protective shell (25). The bottom surface of the top plate (211) is fixedly connected to a limit rod (26).

2. The feeding device for a cardboard production process according to claim 1, characterized in that, The feeding mechanism (3) includes a first support plate (31), an infrared emitter (32) is fixedly connected to the side of the first support plate (31), a third connecting rod (313) is rotatably connected to the bottom of the first support plate (31), both ends of the third connecting rod (313) are rotatably connected to the base (1), a second connecting rod (33) is rotatably connected to the middle of the first support plate (31), one end of the second connecting rod (33) is connected to a second fixing block (35) by a thread, the other end of the second connecting rod (33) is fixedly connected to a raw material rod (34), and a second support plate (36) is fixedly connected to the top of the base (1). A second motor (314) is fixedly connected to the side of the second support plate (36). A raw material rod (34) is fixedly connected to the output end of the second motor (314). An infrared receiver (37) is fixedly connected to the side of the second support plate (36). A wire (38) is fixedly connected to the side of the infrared receiver (37). An alarm (312) is fixedly connected to one end of the wire (38). A third support plate (39) is fixedly connected to the other end of the base (1). A rotating rod (311) is rotatably connected to the middle of the third support plate (39). A third fixing block (310) is fixedly connected to one end of the rotating rod (311).

3. The feeding device for paperboard production according to claim 1, characterized in that, The first motor (21) is fixedly connected to the side of the base (1), and one end of the worm (22) passes through the side of the base (1) and is fixedly connected to the output end of the first motor (21).

4. The feeding device for paperboard production according to claim 1, characterized in that, One end of the limiting rod (26) is fixedly connected to the top plate (211), and the other end of the limiting rod (26) is fixedly connected to the base (1). The middle part of the limiting rod (26) passes through and is slidably connected to the sliding block (27). There are two limiting rods (26), which are symmetrically distributed about the center plane of the base (1).

5. A feeding device for paperboard production according to claim 1, characterized in that, One end of the threaded rod (24) passes through and is fixedly connected to the worm gear (23), the bottom of the threaded rod (24) is rotatably connected to the base (1), and the other end of the threaded rod (24) is rotatably connected to the top plate (211).

6. A feeding device for paperboard production according to claim 2, characterized in that, There are two third support plates (39), which are symmetrically distributed about the center face of the base (1).

7. A feeding device for paperboard production according to claim 2, characterized in that, The infrared emitter (32) and the infrared receiver (37) are located on the same horizontal plane, and both the infrared emitter (32) and the infrared receiver (37) are located below the raw material rod (34).

8. A feeding device for paperboard production according to claim 2, characterized in that, The bottom of the first support plate (31) is semi-circular.

Images