Detection mechanism for packaging machine
By designing a detection mechanism in the packaging machine, using structures such as film guide rollers and adjustment screws, the inaccurate signal detection problem caused by film offset and jitter is solved, and the accurate detection of color marks and film joint signals is achieved, which improves the reliability of the packaging process.
Patent Information
- Application Number
- CN202422269720.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-14
AI Technical Summary
In the packaging machine, the left and right offset and jitter of the film lead to inaccurate detection of the color mark and film joint signals, resulting in erroneous signals.
A detection mechanism for packaging machines is designed to adjust the position of the color mark detection sensor in real time through structures such as film guide rollers and adjustment screws, and reduce the jitter of the film through the design of the film guide rollers to ensure accurate signal detection.
Accurate detection of color marks and film joint signals is achieved, reducing false signals caused by machine vibration and film elastic deformation, and improving the reliability of the packaging process.
Smart Images
Figure CN223046088U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of packaging machinery, in particular to a detection mechanism for a packaging machine for detecting color mark and film joint signals. Background Art
[0002] In the field of packaging production of flexible packaging bags, films such as plastic films, paper films, and aluminum films are used to encapsulate filled materials and are cut into individual packaging bags by a cutter. For the sake of aesthetics, corporate image, and government packaging requirements, patterns, written instructions, etc. are often printed on the film surface of each packaging bag. During the encapsulation process of the packaging machine, the horizontal sealing part or the cutting position needs to be located in the middle of two bags, so it is necessary to print a separation mark, also known as a color mark, on the film surface, and the alignment control is realized by detecting the color mark signal. At the same time, according to national standards, each roll of film is not a completely continuous whole piece of film, and two to three film joints are allowed. Since the film joint is to connect the front and rear films with an adhesive tape, if the joint is packaged, it is not a qualified packaging bag. By detecting the film joint signal, control operations such as alarming for joint packaging bags, stopping material filling, and rejecting are realized.
[0003] During the forward movement of the film under the traction of packaging components such as rollers, due to the installation of the film roll and various forces, there will be a certain left - right offset. Generally, in order to highlight patterns, written instructions, etc., the color mark marks on the packaging film are designed to be relatively small, so the color marks on the film may deviate out of the detection range of the color mark sensor. At the same time, the packaging film is relatively thin, with a large elastic deformation itself, and due to the vibration of the machine itself, etc., there will be a certain jitter on the film surface, resulting in easy generation of false color mark signals or false film joint signals. Content of the Utility Model
[0004] The purpose of the utility model is to solve the above - mentioned deficiencies and provide a detection mechanism for a packaging machine, which can adjust the position of the color mark detection sensor in real time to control the color mark position, and can overcome the jitter on the film surface to ensure the accurate detection of the color mark signal and the film joint signal.
[0005] To achieve the above object, a detection mechanism for a packaging machine is designed, including a rear outer fixing plate 100 and a front outer fixing plate 101. A film guiding roller 102 is provided at the right end between the rear outer fixing plate 100 and the front outer fixing plate 101. A left guiding shaft 103, a right guiding shaft 104 and an adjusting screw 105 are provided at the left end between the rear outer fixing plate 100 and the front outer fixing plate 101. The left guiding shaft 103, the right guiding shaft 104 and the adjusting screw 105 are parallel to each other. An adjusting mounting plate 107 is connected to the left guiding shaft 103, the right guiding shaft 104 and the adjusting screw 105. The adjusting mounting plate 107 is connected to a fixing plate one 108, and the fixing plate one 108 is used for installing a color mark sensor. The left guiding shaft 103 is slidably connected to an adjusting component 120, and the adjusting component 120 is connected to a fixing plate two 123. The fixing plate two 123 is used for installing a film joint sensor. Both the color mark sensor and the film joint sensor are vertically aligned with the film guiding roller 102.
[0006] Further, bearings are built into both ends of the film guiding roller 102 and sleeved on a roller mounting shaft 115. The end shafts at the front and rear ends of the roller mounting shaft 115 extend out of the film guiding roller 102. The front and rear ends of the film guiding roller 102 are respectively connected to the front outer fixing plate 101 and the rear outer fixing plate 100. The rear outer fixing plate 100 is rotatably sleeved on the rear end shaft of the film guiding roller 102. A roller mounting hole 130 is formed on the front outer fixing plate 101 and is fixed to the outside of the front end shaft of the film guiding roller 102 through the roller mounting hole 130 and screws.
[0007] Further, left guiding shaft mounting holes 131 and right guiding shaft mounting holes 132 are symmetrically provided on the front outer fixing plate 101 and the rear outer fixing plate 100 respectively. The left guiding shaft 103 is fixedly connected in the left guiding shaft mounting hole 131 of the front outer fixing plate 101 and the rear outer fixing plate 100. The right guiding shaft 104 is fixedly connected in the right guiding shaft mounting hole 132 of the front outer fixing plate 101 and the rear outer fixing plate 100. An adjusting screw 105 is arranged between the left guiding shaft 103 and the right guiding shaft 104. The adjusting screw 105 is movably connected to the front outer fixing plate 101 and the rear outer fixing plate 100 through bearings.
[0008] Further, the adjusting mounting plate 107 is arranged in a direction perpendicular to the left guiding shaft 103, the right guiding shaft 104 and the adjusting screw 105. Three mounting holes are formed on the adjusting mounting plate 107. The two mounting holes on the left and right of the adjusting mounting plate 107 are respectively sleeved on the left guiding shaft 103 and the right guiding shaft 104. The mounting hole in the middle of the adjusting mounting plate 107 is threadedly connected to the adjusting screw 105.
[0009] Further, the adjusting mounting plate 107 is sleeved on the left guiding shaft 103 and the right guiding shaft 104 through linear bearings 110. The adjusting mounting plate 107 slides back and forth along the left guiding shaft 103 and the right guiding shaft 104. Circlips 111 are arranged on both the front and rear sides of the linear bearings 110. The circlips 111 are used to clamp the adjusting mounting plate 107 at the linear bearings 110.
[0010] Further, the adjusting assembly 120 is composed of a left adjusting pressing plate 122 and a right adjusting pressing plate 121. Arc surfaces are provided on the inner sides of the left adjusting pressing plate 122 and the right adjusting pressing plate 121 which face each other, and the arc surfaces are in fit with the axial surface of the left guiding shaft 103. Two fixing holes are provided on the outer side of the left adjusting pressing plate 122. Threaded holes are provided at positions corresponding to the two fixing holes of the left adjusting pressing plate 122 on the inner side of the right adjusting pressing plate 121. The left adjusting pressing plate 122 and the right adjusting pressing plate 121 are connected to the threaded holes of the left guiding shaft 103 by screws through the two fixing holes. The right adjusting pressing plate 121 is longer than the left adjusting pressing plate 122, and a second fixing plate 123 is connected to the tail end.
[0011] Further, the outer front fixing plate 101 and the outer rear fixing plate 100 are both in an L-shaped right-angled shape, and the radian of the inner arc-shaped processing angle 140 is a right angle, so as to facilitate the observation and adjustment of the sensor.
[0012] Further, an adjusting handle 106 is arranged at the front side tail end of the adjusting screw 105. The adjusting handle 106 is used to drive the adjusting screw 105 to rotate, and further adjust the adjusting mounting plate 107 back and forth.
[0013] Further, a mounting arm 200 is arranged at the rear side of the outer rear fixing plate 100. A long slot 201 and a mounting hole 202 are provided on the mounting arm 200. The mounting arm 200 is fixedly connected to the rear end of the guide roller mounting shaft 115 through the mounting hole 202. A gasket 210 is arranged outside the long slot 201. The mounting arm 200 is fixed on the packaging machine by screws through the long slot 201 and the gasket 210, so as to facilitate adjustment and protect the mounting surface to avoid wear of the mounting surface.
[0014] Compared with the prior art, the utility model has a novel and simple structure and a reasonable design. After the film is wound around the film guiding roller and fed in, when the film is in close contact with the guiding roller, the shaking of the film at the guiding roller is avoided. Then, the color mark sensor and the film joint sensor are vertically aligned with the guiding roller to ensure the accuracy of the signal. At the same time, the color mark sensor is arranged on the adjusting screw, and the left and right positions of the color mark sensor can be finely adjusted at any time during the machine packaging process. [Description of the Drawings]
[0015] Figure 1Is the three-dimensional structure schematic diagram of the present utility model Figure 1 ;
[0016] Figure 2 Is the three-dimensional structure schematic diagram of the present utility model Figure 2 ;
[0017] Figure 3 Is the three-dimensional structure schematic diagram of the present utility model Figure 3 ;
[0018] Figure 4 Is the three-dimensional structure schematic diagram of the present utility model Figure 4 ;
[0019] Figure 5 Is the three-dimensional structure schematic diagram of the present utility model Figure 5 ;
[0020] In the figure: 100, rear outer side fixing plate; 101, front outer side fixing plate; 102, film guiding roller; 103, left guiding shaft; 104, right guiding shaft; 105, adjusting screw; 106, adjusting handle; 107, adjusting mounting plate; 108, fixing plate one; 110, linear bearing; 111, circlip; 115, roller mounting shaft; 120, adjusting component; 121, right adjusting pressure plate; 122, left adjusting pressure plate; 123, fixing plate two; 130, roller mounting hole; 131, left guiding shaft mounting hole; 132, right guiding shaft mounting hole; 140, arc machining angle; 200, mounting arm; 201, long waist hole; 202, mounting hole; 210, gasket. [Specific embodiments]
[0021] The present utility model will be further described below with reference to the accompanying drawings:
[0022] As shown in the attached Figure 1 to the attached Figure 5As shown in the figure, the utility model provides a detection mechanism for a packaging machine, which includes a rear outer fixing plate 100 and a front outer fixing plate 101. A film guiding roller 102 for guiding the packaging film is arranged at the right end between the rear outer fixing plate 100 and the front outer fixing plate 101. A left guiding shaft 103, a right guiding shaft 104 and an adjusting screw 105 are arranged at the left end between the rear outer fixing plate 100 and the front outer fixing plate 101. The left guiding shaft 103, the right guiding shaft 104 and the adjusting screw 105 are parallel to each other. An adjusting mounting plate 107 is connected to the left guiding shaft 103, the right guiding shaft 104 and the adjusting screw 105. The adjusting mounting plate 107 is connected to a fixing plate one 108, and the fixing plate one 108 is used for installing a color mark sensor. The left guiding shaft 103 is slidably connected to an adjusting component 120, and the adjusting component 120 is connected to a fixing plate two 123. The fixing plate two 123 is used for installing a film joint sensor. The color mark sensor and the film joint sensor are both vertically aligned with the film guiding roller 102, which can overcome the detection error signals caused by the vibration of the machine itself, etc. and the elastic deformation of the film. On the basis of being able to detect the signals of the color mark and the film joint, the left and right positions of the color mark sensor can also be adjusted in real time.
[0023] In the detection mechanism of the packaging machine, bearings are built into both ends of the film guiding roller 102 and sleeved on the guide roller mounting shaft 115. The end shafts at the front and rear ends of the guide roller mounting shaft 115 extend out of the film guiding roller 102. The front and rear ends of the film guiding roller 102 are respectively connected to the front outer fixing plate 101 and the rear outer fixing plate 100. The outer shapes of the front outer fixing plate 101 and the rear outer fixing plate 100 are both L-shaped right angles, and the radian of the inner arc processing angle 140 is a right angle, which is convenient for observing and adjusting the sensor. The rear outer fixing plate 100 is rotatably sleeved on the rear end shaft of the film guiding roller 102. A roller mounting hole 130 is provided on the front outer fixing plate 101, and the front outer fixing plate 101 is fixed to the outside of the front end shaft of the film guiding roller 102 through the roller mounting hole 130 and by screws. Left guide shaft mounting holes 131 and right guide shaft mounting holes 132 are provided on the front outer fixing plate 101. The rear outer fixing plate 100 and the front outer fixing plate 101 are symmetrically provided with left guide shaft mounting holes 131 and right guide shaft mounting holes 132 respectively. A left guide shaft 103 is fixedly connected in the left guide shaft mounting hole 131 of the front outer fixing plate 101 and the rear outer fixing plate 100. A right guide shaft 104 is fixedly connected in the right guide shaft mounting hole 132 of the front outer fixing plate 101 and the rear outer fixing plate 100. An adjusting screw 105 is arranged between the left guide shaft 103 and the right guide shaft 104. The adjusting screw 105 is movably connected to the front outer fixing plate 101 and the rear outer fixing plate 100 through bearings. The three axes of the left guide shaft 103, the right guide shaft 104, and the adjusting screw 105 are parallel to each other. An adjusting mounting plate 107 is arranged perpendicular to the directions of the left guide shaft 103, the right guide shaft 104, and the adjusting screw 105. Three mounting holes are provided on the adjusting mounting plate 107. The left and right two mounting holes on the adjusting mounting plate 107 are respectively sleeved on the left guide shaft 103 and the right guide shaft 104. The middle mounting hole on the adjusting mounting plate 107 is threadedly connected to the adjusting screw 105.
[0024] An adjusting handle 106 is arranged at the front side end of the adjusting screw 105. The adjusting handle 106 is used to drive the adjusting screw 105 to rotate, and then adjust the adjusting mounting plate 107 forward and backward. The adjusting mounting plate 107 is connected to the fixing plate one 108, and the fixing plate one 108 is used to mount the color mark sensor. The left guide shaft 103 is slidably connected to the adjusting component 120. The adjusting component 120 is connected to the fixing plate two 123, and the fixing plate two 123 is used to mount the film joint sensor. The color mark sensor and the film joint sensor are vertically aligned with the film guiding roller 102. The adjusting mounting plate 107 is sleeved on the left guide shaft 103 and the right guide shaft 104 through linear bearings 110, which is convenient for the front and rear sliding of the mounting plate one 107, that is, the adjusting mounting plate 107 slides forward and backward along the left guide shaft 103 and the right guide shaft 104. Circlips 111 are arranged on both the front and rear sides of the linear bearings 110. The circlips 111 are used to clamp the mounting plate one 107 at the linear bearings 110.
[0025] The adjusting assembly 120 is composed of a left adjusting pressing plate 122 and a right adjusting pressing plate 121. The inner sides of the left adjusting pressing plate 122 and the right adjusting pressing plate 121, which face each other, are provided with arc surfaces, and the arc surfaces are in axial fit with the axial surface of the left guiding shaft 103. Two fixing holes are arranged on the outer side of the left adjusting pressing plate 122, and threaded holes are arranged at positions corresponding to the two fixing holes of the left adjusting pressing plate 122 on the inner side of the right adjusting pressing plate 121. The left adjusting pressing plate 122 and the right adjusting pressing plate 121 are connected to the threaded holes of the left guiding shaft 103 by screws passing through the two fixing holes. The right adjusting pressing plate 121 is longer than the left adjusting pressing plate 122, and the second fixing plate 123 is connected to the tail end.
[0026] An installation arm 200 is arranged at the rear side of the rear outer fixing plate 100. The installation arm 200 is provided with a long oval hole 201 and an installation hole 202. The installation arm 200 is fixedly connected to the rear end of the guide roller installation shaft 115 through the installation hole 202. A gasket 210 with a thickness of 1-2 mm is arranged outside the long oval hole 201. The installation arm 200 is fixed on the packaging machine by screws through the long oval hole 201 and the gasket 210, which is convenient for adjustment and protects the installation surface to avoid wear of the installation surface.
[0027] As shown in the attached Figure 1 figure, by loosening the fixing screws of the roller installation hole 130 of the present utility model, the front outer fixing plate 101 and the rear outer fixing plate 100 can rotate around the film guiding roller 102 (the rear outer fixing plate 100 is sleeved on the rear end of the guide roller installation shaft 115 and is not fixed). The packaging film is wound around the film guiding roller 102 from the right side to the left side. In this way, the color mark sensor and the film joint sensor are vertically aligned and closely attached to the packaging film on the film guiding roller 102. For the jitter caused by the vibration of the machine itself and the elastic deformation of the film under tension, the color mark or the film joint sensor will not sense false signals. By rotating the adjusting handle 106 clockwise or counterclockwise, the adjusting plate 107 and the first fixing plate 108 connected thereto can be moved left and right, thereby driving the color mark sensor to move left and right, facilitating the fine adjustment of the color mark detection position. By loosening the two fixing holes on the outer side of the left adjusting pressing plate 122, the right adjusting pressing plate 121 and the left adjusting pressing plate 122 can be loosened, and the adjusting assembly 120 can be slid left and right, driving the second fixing plate 123 and then driving the film joint sensor to move left and right to adjust its detection position. Since the detection range of the film joint is generally large and fine adjustment is generally not required, the attached detection function of the film joint by the present adjusting mechanism is realized.
[0028] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. Standard parts used can be purchased from the market. Special-shaped parts can be customized according to the description in the specification and the drawings. Specific connection methods for each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. Machines, parts, and equipment all adopt conventional models in the prior art. Circuit connections adopt conventional connection methods in the prior art, and will not be elaborated here.
[0029] The present utility model is not restricted by the above-mentioned embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present utility model shall be equivalent replacement methods and are all included in the protection scope of the present utility model.
Claims
1. A detection mechanism for a packaging machine, characterized in that: The invention comprises a rear outer fixing plate (100) and a front outer fixing plate (101), wherein a film guide roller (102) is arranged at the right end between the rear outer fixing plate (100) and the front outer fixing plate (101), and a left guide shaft (103), a right guide shaft (104) and an adjusting screw (105) are arranged at the left end between the rear outer fixing plate (100) and the front outer fixing plate (101), wherein the left guide shaft (103), the right guide shaft (104) and the adjusting screw (105) are parallel to each other, and the left guide shaft (103), the right guide shaft (104) and the adjusting screw (105) are parallel to each other. The right guide shaft (104) and the adjusting screw (105) are connected with an adjusting mounting plate (107), the adjusting mounting plate (107) is connected with a fixing plate 1 (108), the fixing plate 1 (108) is used to install a color mark sensor, the left guide shaft (103) is slidably connected with an adjusting component (120), the adjusting component (120) is connected with a fixing plate 2 (123), the fixing plate 2 (123) is used to install a film joint sensor, the color mark sensor and the film joint sensor are both vertically aligned with the film guide roller (102).
2. The detection mechanism for a packaging machine according to claim 1, characterized in that: The film guide roller (102) has built-in bearings at both ends thereof which are sleeved on the guide roller mounting shaft (115); the end shafts at the front and rear ends of the guide roller mounting shaft (115) extend out of the film guide roller (102); the front and rear ends of the film guide roller (102) are respectively connected to a front outer fixing plate (101) and a rear outer fixing plate (100); the rear outer fixing plate (100) can be rotatably sleeved on the rear end shaft of the film guide roller (102); a roller mounting hole (130) is provided on the front outer fixing plate (101), and the front outer fixing plate is fixed to the outer side of the front end shaft of the film guide roller (102) through the roller mounting hole (130) and screws.
3. The detection mechanism for a packaging machine according to claim 2, characterized in that: The front outer fixing plate (101) and the rear outer fixing plate (100) are symmetrically provided with a left guide shaft mounting hole (131) and a right guide shaft mounting hole (132), respectively; the left guide shaft (103) is fixedly connected in the left guide shaft mounting hole (131) of the front outer fixing plate (101) and the rear outer fixing plate (100); the right guide shaft (104) is fixedly connected in the right guide shaft mounting hole (132) of the front outer fixing plate (101) and the rear outer fixing plate (100); an adjusting screw (105) is provided between the left guide shaft (103) and the right guide shaft (104); the adjusting screw (105) is movably connected to the front outer fixing plate (101) and the rear outer fixing plate (100) through a bearing.
4. The detection mechanism for a packaging machine according to claim 3, characterized in that: The adjusting mounting plate (107) is arranged in a direction perpendicular to the left guide shaft (103), the right guide shaft (104) and the adjusting screw (105); three mounting holes are opened on the adjusting mounting plate (107); the two mounting holes located on the left and right sides of the adjusting mounting plate (107) are respectively sleeved on the left guide shaft (103) and the right guide shaft (104); the mounting hole located in the middle of the adjusting mounting plate (107) is connected to the adjusting screw (105) through threaded matching.
5. The detection mechanism for a packaging machine according to any one of claims 1 to 4, characterized in that: The adjusting mounting plate (107) is sleeved on the left guide shaft (103) and the right guide shaft (104) through a linear bearing (110); the adjusting mounting plate (107) slides forward and backward along the left guide shaft (103) and the right guide shaft (104); a retaining spring (111) is arranged on both the front and rear sides of the linear bearing (110); the retaining spring (111) is used to retain the adjusting mounting plate (107) on the linear bearing (110).
6. The detection mechanism for a packaging machine according to any one of claims 1 to 4, characterized in that: The adjustment assembly (120) is composed of a left adjustment plate (122) and a right adjustment plate (121). The inner sides of the left adjustment plate (122) and the right adjustment plate (121) are provided with an arc surface, and the arc surface matches the axial surface of the left guide shaft (103). Two fixing holes are provided on the outer side of the left adjustment plate (122). The inner side of the right adjustment plate (121) is provided with threaded holes at positions corresponding to the two fixing holes of the left adjustment plate (122). The left adjustment plate (122) and the right adjustment plate (121) are connected to the threaded holes of the left guide shaft (103) through the two fixing holes by screws. The right adjustment plate (121) is longer than the left adjustment plate (122) and is connected to the second fixing plate (123) at the tail end.
7. The detection mechanism for a packaging machine according to any one of claims 1 to 4, characterized in that: The outer shapes of the front outer fixing plate (101) and the rear outer fixing plate (100) are both L-shaped right angle shapes, and the arc of the inner arc processing corner (140) is a right angle.
8. The detection mechanism for a packaging machine according to any one of claims 1 to 4, characterized in that: An adjustment handle (106) is provided at the front end of the adjustment screw (105), and the adjustment handle (106) is used to drive the adjustment screw (105) to rotate, thereby adjusting the adjustment mounting plate (107) forward and backward.
9. The detection mechanism for a packaging machine according to any one of claims 1 to 4, characterized in that: A mounting arm (200) is arranged on the rear side of the rear outer fixing plate (100); a long waist hole (201) and a mounting hole (202) are arranged on the mounting arm (200); the mounting arm (200) is fixedly connected to the rear end of the guide roller mounting shaft (115) through the mounting hole (202); a gasket (210) is arranged on the outer side of the long waist hole (201); the mounting arm (200) is fixed to the packaging machine by means of screws through the long waist hole (201) and the gasket (210).