Bread packaging machine film material tension self-adaptive adjusting structure

Abstract

The utility model discloses a bread packaging machine film material tension self -adaptation adjusting structure relates to food packaging machinery engineering technical field, the utility model discloses a bottom plate, the top outer wall fixedly connected with a plurality of support frames of bottom plate is provided with the self -adaptation adjusting mechanism in a plurality of support frames inner wall, the self -adaptation adjusting mechanism includes a plurality of slide shafts, the utility model discloses a sliding membrane guide seat, sliding membrane guide seat will move down and extrude spring at this moment, the spring elasticity that generates increases with the compression amount at this moment, offsets additional tension, and damper slows down the quick movement of sliding seat, avoids tension overshoot, when tension sudden drop, spring rebound pushes sliding membrane guide seat reset and tightens film material, the damper inhibits spring's rebound oscillation at this moment, prevents tension repeatedly fluctuating, and fast stable to the preset value, at this moment, reach the effect of self -adaptation adjusting of film material tension, thereby promote equipment operation stability, reduce the shutdown failure, avoid the shutdown caused by tension anomaly.

Description

Technical Field

[0001] This utility model belongs to the field of food packaging machinery engineering technology, and in particular relates to an adaptive adjustment structure for film tension in bread packaging machines. Background Technology

[0002] With economic development and the improvement of people's living standards, the food industry's demand for packaging of bread and other foods is constantly increasing, and higher requirements are being placed on packaging quality and efficiency. High-speed, high-efficiency, and high-precision packaging machines have become an urgent market demand, and the stable control of film tension is one of the key factors to ensure packaging quality and efficiency.

[0003] The adaptive tension adjustment structure of the bread packaging machine is a core functional component used to dynamically and automatically control the tension stability of the packaging film. Its core function is to solve the tension imbalance problem caused by factors such as changes in film roll diameter and fluctuations in equipment running speed during the entire packaging process, including unwinding, conveying, and forming.

[0004] When a modern bread packaging machine starts up, the tension of the film increases sharply as it moves from a stationary position to a moving position. When the machine stops, the tension decreases sharply as it moves from a moving position to a stationary position, which can easily cause the film to wrinkle or tear. Therefore, the tension needs to be adjusted. However, the traditional method requires workers to manually tighten bolts and adjust the pressure of friction plates to control the tension, which takes a long time and may lead to long downtime of the equipment, thus affecting production efficiency. Therefore, we have proposed an adaptive tension adjustment structure for bread packaging machines. Utility Model Content

[0005] The purpose of this invention is to provide an adaptive tension adjustment structure for bread packaging machine film. Through the adaptive adjustment mechanism and quick-release mechanism, it solves the problem that when the production line of a modern bread packaging machine starts up, the tension of the film increases suddenly from a stationary state to a moving state, and when the machine stops, the tension decreases suddenly from a moving state to a stationary state, which can easily lead to wrinkles or tears in the film. Therefore, tension adjustment is necessary. However, the traditional method requires workers to manually tighten bolts and adjust the pressure of friction plates to control the tension, which takes a long time and may lead to long downtime of the equipment, thus affecting production efficiency.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a film tension adaptive adjustment structure for bread packaging machine, including a base plate, a number of support frames are fixedly connected to the top outer wall of the base plate, and an adaptive adjustment mechanism is provided on the inner wall of the number of support frames.

[0008] The adaptive adjustment mechanism includes several sliding shafts, the outer walls of which are fixedly connected to the inner walls of the support frame. The inner walls of the support frame are provided with sliding grooves. The outer walls of the sliding shafts are slidably connected to sliding guide film seats. The inner walls of the support frame are fixedly connected to dampers. The outer walls of the dampers are fixedly connected to the outer walls of the sliding guide film seats. The outer walls of the sliding shafts are fitted with springs. The outer walls of the sliding guide film seats are fixedly connected to fixing frames. The outer walls of the fixing frames are rotatably connected to connecting rods. The top outer wall of the base plate is provided with a quick-release mechanism.

[0009] Furthermore, each of the connecting rods has a second fixed frame rotatably connected to the inner wall of the end away from the fixed frame, a slider is fixedly connected to the outer wall of each of the second fixed frames, the outer wall of each slider is slidably connected to the inner wall of the slide groove, and a tension roller is rotatably connected to the inner wall of each of the sliding guide film seats.

[0010] Furthermore, the quick-release mechanism includes several fixed plates, the bottom outer walls of the several fixed plates are fixedly connected to the top outer wall of the base plate, the inner walls of the several fixed plates are fixedly connected to fixed seats, the inner walls of the several fixed seats are provided with unwinding rollers, the inner walls of the several fixed seats and unwinding rollers are inserted with hollow insert shafts, and the inner walls of the several hollow insert shafts are rotatably connected with rotating shafts.

[0011] Furthermore, bevel gears are rotatably connected to the bottom outer walls of several of the rotating shafts, and positioning plates are fixedly connected to the inner walls of several of the hollow insert shafts.

[0012] Furthermore, each of the positioning plates has a lead screw rotatably connected to its inner wall, and a bevel gear is fixedly connected to the outer wall of one end of each lead screw near the positioning plate.

[0013] Furthermore, the outer walls of several of the bevel gears mesh with the outer walls of the bevel gears, and the outer walls of several of the lead screws are threaded with positioning shafts.

[0014] Furthermore, each of the hollow insert shafts has a sliding hole on its inner wall, and the inner wall of each sliding hole is slidably connected to the outer wall of the positioning shaft.

[0015] Furthermore, the inner walls of several positioning plates are fixedly connected to limit rods, and the outer walls of several limit rods are slidably connected to the inner wall of the positioning shaft.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model incorporates a sliding guide film seat. When the sliding guide film seat moves downward, it compresses the spring. The elastic force generated by the spring increases with the amount of compression, offsetting the additional tension. At the same time, the damper slows down the rapid movement of the sliding seat, preventing tension overshoot. When the tension drops sharply, the spring rebounds, pushing the sliding guide film seat back to its original position and tightening the film. At this time, the damper suppresses the spring's rebound oscillation, preventing repeated tension fluctuations and quickly stabilizing the tension to the preset value. This achieves the effect of adaptive adjustment of the film tension, thereby improving the stability of equipment operation, reducing downtime, and avoiding downtime caused by abnormal tension.

[0018] 2. This utility model incorporates a lead screw. When the lead screw rotates, it drives the positioning shaft to move inward on the limiting rod. After moving a certain distance, the end of the positioning shaft that was originally outside the hollow insert shaft will be retracted to the inner wall of the hollow insert shaft, thereby releasing the limitation on the hollow insert shaft. Subsequently, the hollow insert shaft can be pulled out from the fixed seat and the unwinding roller, and the unwinding roller can be removed and replaced. After replacement, the above operation is repeated in the reverse direction to complete the installation. This achieves the effect of quick disassembly of the unwinding roller, thereby shortening the film material replacement time, ensuring production continuity, and supporting multi-specification film materials and flexible production.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the sliding guide film seat structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the fixing base structure of this utility model;

[0025] Figure 5 This is a cross-sectional view of the hollow insert shaft structure of this utility model;

[0026] Figure 6 This utility model Figure 5 Enlarged view of point A in the middle.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Base plate; 101. Support frame; 2. Adaptive adjustment mechanism; 201. Sliding shaft; 202. Sliding groove; 203. Sliding guide film seat; 204. Damper; 205. Spring; 206. Fixing frame; 207. Connecting rod; 208. Fixing frame two; 209. Slider; 210. Tension roller; 3. Quick release mechanism; 301. Fixing plate; 302. Fixing seat; 303. Unwinding roller; 304. Hollow insert shaft; 305. Rotating shaft; 306. Bevel gear; 307. Positioning plate; 308. Lead screw; 309. Bevel gear two; 310. Sliding hole; 311. Positioning shaft; 312. Limiting rod. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-6 As shown, this utility model is a film tension adaptive adjustment structure for bread packaging machine, including a base plate 1. The top outer wall of the base plate 1 has a number of support frames 101. The support frames 101 are used to support and limit the subsequent parts, thereby achieving the subsequent effect. The inner wall of the number of support frames 101 is provided with an adaptive adjustment mechanism 2.

[0031] The adaptive adjustment mechanism 2 includes several sliding shafts 201. The outer walls of the sliding shafts 201 are fixedly connected to the inner walls of the support frame 101. The sliding shafts 201 are used to support and limit subsequent parts, thereby preventing them from shifting. The inner walls of the support frames 101 are provided with sliding grooves 202. The outer walls of the sliding shafts 201 are slidably connected to sliding guide seats 203. The inner walls of the support frames 101 are fixedly connected to dampers 204. The dampers 204 are used to slow down the rapid movement of the sliding seats and prevent... The tension overshoot also damped the spring rebound oscillation. The outer walls of several dampers 204 are fixedly connected to the outer walls of the sliding guide diaphragm seat 203. The outer walls of several sliding shafts 201 are fitted with springs 205. The outer walls of several sliding guide diaphragm seats 203 are fixedly connected with fixed frames 206. The outer walls of several fixed frames 206 are rotatably connected with connecting rods 207. The connecting rods 207 are used to drive the subsequent parts to move, thereby achieving the subsequent movement. The top outer wall of the base plate 1 is provided with a quick release mechanism 3.

[0032] Several connecting rods 207 are rotatably connected to a second fixed frame 208 on the inner wall of the end away from the fixed frame 206. Slider 209s are fixedly connected to the outer walls of several second fixed frames 208. The connecting rods 207 drive the sliders 209 to move in the slide groove 202, thereby allowing them to slide on the sliding shaft 201. The outer walls of several sliders 209 are slidably connected to the inner wall of the slide groove 202. Tension rollers 210 are rotatably connected to the inner walls of several sliding guide film seats 203. The quick-release mechanism 3 includes several fixed plates 301. The bottom outer walls of several fixed plates 301 are fixedly connected to the top outer wall of the base plate 1. Tension rollers 210 are fixedly connected to the inner walls of several fixed plates 301. The fixed base 302 has an unwinding roller 303 installed on its inner wall. The unwinding roller 303 is supported by the fixed base 302 and then fixed with subsequent parts to achieve the effect of installation and disassembly. Hollow insert shafts 304 are inserted into the inner walls of the fixed base 302 and the unwinding roller 303. Rotating shafts 305 are rotatably connected to the inner walls of the hollow insert shafts 304. Bevel gears 306 are rotatably connected to the bottom outer walls of the rotating shafts 305. The rotating shafts 305 drive the bevel gears 306 to rotate, thereby driving the subsequent parts to rotate. Positioning plates 307 are fixedly connected to the inner walls of the hollow insert shafts 304.

[0033] Several positioning plates 307 have lead screws 308 rotatably connected to their inner walls. A bevel gear 309 is fixedly connected to the outer wall of one end of each lead screw 308 near the positioning plate 307. The outer walls of the bevel gears 309 mesh with the outer walls of bevel gears 306. Rotation of bevel gears 306 drives the bevel gears 309 to rotate, which in turn drives the lead screws 308, thus achieving a transmission effect between the parts. The outer walls of the lead screws 308 are all threaded with a fixed... Positioning shaft 311, and several hollow insert shafts 304 have sliding holes 310 on their inner walls. The inner walls of the sliding holes 310 are slidably connected to the outer wall of positioning shaft 311. Several positioning plates 307 have limit rods 312 fixedly connected to their inner walls. When the lead screw 308 rotates, it drives the positioning shaft 311 to move backward or forward, thereby limiting or releasing the hollow insert shafts 304. The outer walls of the limit rods 312 are slidably connected to the inner wall of positioning shaft 311.

[0034] One specific application of this embodiment is:

[0035] When the equipment is used, the film material first passes through the tension roller 210 on the sliding guide film seat 203. The tension and the elastic force of the spring 205 are balanced, and the sliding seat remains in the neutral position. When the tension suddenly increases, the film material, through the tension roller 210, drives the sliding guide film seat 203 downwards. During this movement, the connecting rod 207 rotates on the fixed frame 208 via the fixed frame 206, dragging the slider 209 downwards in the groove 202. At this time, the sliding guide film seat 203 moves downwards and compresses the spring 205. The elastic force generated by the spring 205 increases with the compression, offsetting the additional tension. Simultaneously, the damper 204 slows down the rapid movement of the sliding seat, preventing tension overshoot. When the tension suddenly decreases, the spring 205 rebounds, pushing the sliding guide film seat 203 back to its original position and tightening the film material. At this time, the damper 204 suppresses the spring's rebound oscillation, preventing repeated tension fluctuations and quickly stabilizing to the preset value. This achieves the effect of adaptive adjustment of film tension. When the film on the unwinding roller 303 is used up and needs to be replaced, first rotate the rotating shaft 305. When the rotating shaft 305 rotates, it drives the bevel gear 306 to rotate. When the bevel gear 306 rotates, it drives the second bevel gear 309 to rotate. When the second bevel gear 309 rotates, it drives the lead screw 308 to rotate in the positioning plate 307. When the lead screw 308 rotates, it drives the positioning shaft 311 to move inward on the limiting rod 312. After moving a certain distance, the end of the positioning shaft 311 that was originally outside the hollow insert shaft 304 will be returned to the inner wall of the hollow insert shaft 304, thereby releasing the limitation on the hollow insert shaft 304. Then the hollow insert shaft 304 can be pulled out from the fixed seat 302 and the unwinding roller 303. Then the unwinding roller 303 can be removed and replaced. After the replacement is completed, the above operation is repeated in the reverse direction to complete the installation.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A bread packaging machine film tension adaptive adjustment structure, including a base plate (1), characterized in that: The top outer wall of the base plate (1) is fixedly connected with several support frames (101), and the inner walls of the several support frames (101) are provided with adaptive adjustment mechanisms (2). The adaptive adjustment mechanism (2) includes several sliding shafts (201), the outer walls of several sliding shafts (201) are fixedly connected to the inner walls of the support frame (101), the inner walls of several support frames (101) are provided with sliding grooves (202), the outer walls of several sliding shafts (201) are slidably connected with sliding guide film seats (203), the inner walls of several support frames (101) are fixedly connected with dampers (204), the outer walls of several dampers (204) are fixedly connected to the outer walls of sliding guide film seats (203), the outer walls of several sliding shafts (201) are sleeved with springs (205), the outer walls of several sliding guide film seats (203) are fixedly connected with fixing frames (206), the outer walls of several fixing frames (206) are rotatably connected with connecting rods (207), and the top outer wall of the base plate (1) is provided with a quick-release mechanism (3).

2. The adaptive tension adjustment structure for the bread packaging machine film as described in claim 1, characterized in that, A second fixed frame (208) is rotatably connected to the inner wall of one end of each of the connecting rods (207) away from the fixed frame (206). A slider (209) is fixedly connected to the outer wall of each of the second fixed frames (208). The outer wall of each slider (209) is slidably connected to the inner wall of the slide groove (202). A tension roller (210) is rotatably connected to the inner wall of each of the sliding guide film seats (203).

3. The adaptive tension adjustment structure for the bread packaging machine film according to claim 2, characterized in that, The quick-release mechanism (3) includes several fixed plates (301), the bottom outer walls of the several fixed plates (301) are fixedly connected to the top outer wall of the base plate (1), the inner walls of the several fixed plates (301) are fixedly connected to fixed seats (302), the inner walls of the several fixed seats (302) are provided with unwinding rollers (303), the inner walls of the several fixed seats (302) and the unwinding rollers (303) are all inserted with hollow insert shafts (304), and the inner walls of the several hollow insert shafts (304) are rotatably connected with rotating shafts (305).

4. The adaptive tension adjustment structure for bread packaging machine film as described in claim 3, characterized in that, The bottom outer walls of several of the rotating shafts (305) are rotatably connected with bevel gears (306), and the inner walls of several of the hollow insert shafts (304) are fixedly connected with positioning plates (307).

5. The adaptive tension adjustment structure for the bread packaging machine film according to claim 4, characterized in that, Each of the positioning plates (307) has a lead screw (308) rotatably connected to its inner wall, and a bevel gear (309) is fixedly connected to the outer wall of one end of each lead screw (308) near the positioning plate (307).

6. The adaptive tension adjustment structure for the bread packaging machine film according to claim 5, characterized in that, The outer walls of several bevel gears (309) mesh with the outer walls of bevel gears (306), and the outer walls of several lead screws (308) are threaded with positioning shafts (311).

7. The adaptive tension adjustment structure for the bread packaging machine film according to claim 6, characterized in that, Each of the hollow insert shafts (304) has a sliding hole (310) on its inner wall, and the inner wall of each of the sliding holes (310) is slidably connected to the outer wall of the positioning shaft (311).

8. The adaptive tension adjustment structure for the bread packaging machine film according to claim 7, characterized in that, The inner walls of several positioning plates (307) are fixedly connected to limit rods (312), and the outer walls of several limit rods (312) are slidably connected to the inner wall of the positioning shaft (311).

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