An automatic deviation correction type food wrapping paper waxing machine

Abstract

The utility model relates to a kind of waxing machines based on automatic rectification type food packaging paper, and the waxing machine includes: base, guiding roller is provided on base, and the one end of guiding roller is coaxially provided with telescopic connecting piece, and the one end of telescopic connecting piece is slidably inserted in guiding roller, and the other end extends outward along the axial direction of guiding roller;Vertical moving part, it is installed on base, and symmetrically set in the both ends of guiding roller;The both sides of guiding roller paper-feeding side are provided with detection unit installed on base, the utility model makes the independent differentiation adjustment of the both ends of guiding roller, so that guiding roller can make asymmetric response according to paper single-side deviation, replace the lag mode of traditional waxing machine relying on subsequent positioning plate passive extrusion correction, rectification action is preposed to complete with waxing procedure synchronously, while the rectification response speed is greatly improved, effectively avoid the dead fold and wrinkling problem generated by extrusion of external force to thin food packaging paper.

Description

Technical Field

[0001] This utility model relates to the technical field of packaging paper processing, specifically to an automatic correction type food packaging paper waxing machine. Background Technology

[0002] The core purpose of waxing food packaging paper is to enhance its protective capabilities by utilizing the properties of the wax layer. Its main function is to form a dense physical barrier that effectively prevents moisture penetration, avoiding softening and damage of the paper when wet, and preventing food from becoming damp and spoiling. Waxing of food packaging paper falls into two categories: small-batch manual production and large-scale industrial production. Large-scale industrial production requires the use of waxing machines.

[0003] A waxing machine is a complete piece of equipment that enables continuous waxing of food packaging paper. During normal production, the unwound packaging paper is smoothly conveyed by tension rollers and finally guided to guide rollers. The guide rollers precisely position the paper to enter the waxing station, ensuring a uniform wax layer on the paper surface. However, in existing systems, the rotating mounting point of the guide rollers is set at a fixed point. When the paper shifts to one side, the fixed guide roller cannot adjust synchronously with the paper's position, leading to uneven wax layer thickness on the shifted side, resulting in localized missed coatings or excessively thick wax layers. This directly damages the waterproof and oil-resistant properties of the food packaging paper.

[0004] Currently, the common technical approach in the industry is to install a subsequent positioning plate or correction baffle downstream of the waxing station. The working principle of this type of device is that after detecting paper deviation, the positioning plate uses lateral compression on the edge of the paper to forcibly push the paper back to the preset track. However, this compression-type correction method applies a forced lateral shear force to the edge of the paper, and the conveying path of the paper on the deviated side is suddenly changed when it is compressed. At this time, it is subjected to additional forced external force, which easily causes dead wrinkles and wrinkles on the paper surface, and in severe cases, it can even cause the paper web to tear. Utility Model Content

[0005] The purpose of this invention is to provide an automatic correction type food packaging paper waxing machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic correction-type food packaging paper waxing machine, comprising a base, a guide roller on the base, a telescopic connector coaxially disposed at one end of the guide roller, one end of the telescopic connector being slidably inserted into the guide roller, and the other end extending outward along the axial direction of the guide roller; vertical moving parts, mounted on the base, symmetrically disposed at both ends of the guide roller, wherein the movable end of one vertical moving part is hinged to the telescopic connector on the corresponding side, and the movable end of the other vertical moving part is hinged to a rotating drum mounted on the guide roller on the corresponding side, which can respectively restrict the corresponding ends of the guide roller to independently rise and fall in the vertical direction; detection units mounted on the base are provided on both sides of the paper feeding side of the guide roller, which can respectively detect the position of the two edges of the paper.

[0007] As described above, the automatic correction type food packaging paper waxing machine has an inner cavity at both ends of the guide roller along the axial direction, and the rotating drum and connecting sleeve are rotatably installed on the inner side of the two inner cavities respectively.

[0008] As described above, the automatic correction type food packaging paper waxing machine includes a detection unit that includes a displacement sensor mounted on the side wall of the machine base, with the detection end of the displacement sensor facing the corresponding side edge of the paper.

[0009] As described above, the automatic correction type food packaging paper waxing machine includes a telescopic connector with one end of the telescopic connector slidably inserted into the connecting sleeve, and the telescopic connector and the connecting sleeve are arranged coaxially.

[0010] As described above, the automatic correction type food packaging paper waxing machine has at least one set of strip grooves formed axially on the inner peripheral wall of the connecting sleeve, and a corresponding strip block is provided on the outer peripheral wall of the movable shaft. The strip block can be embedded in the strip groove and slide in cooperation with the strip groove.

[0011] As described above, the automatic correction type food packaging paper waxing machine includes symmetrically arranged guide rails mounted on the machine base. A movable slot extending vertically is formed between the opposite sides of the two sets of guide rails. A connecting seat is slidably mounted on both guide rails. The two sides of the connecting seat form a directional sliding fit with the corresponding side guide rail. The movable shaft and the end of the rotating drum away from the guide roller are respectively hinged to the corresponding side connecting seat. The lifting and lowering of the connecting seat is controlled by a lifting drive component mounted on the machine base.

[0012] As described above, the automatic correction type food packaging paper waxing machine includes an electric telescopic rod, which is mounted on the machine base. The movable rod of the electric telescopic rod extends vertically and is connected to the top of the connecting seat.

[0013] Compared with the prior art, the beneficial effects of this utility model are: by independently and differentially adjusting the two ends of the guide roller, the guide roller can make an asymmetrical response according to the unilateral deviation of the paper, which replaces the lagging mode of the traditional waxing machine that relies on the passive squeezing correction of the subsequent positioning plate. The correction action is brought forward to be completed synchronously with the waxing process. While greatly improving the correction response speed, it effectively avoids the problem of dead creases and wrinkles caused by external pressure on thin food packaging paper. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of an automatic correction-type food packaging paper waxing machine; Figure 2 This is a schematic diagram of the detection unit in an automatic correction-type food packaging paper waxing machine; Figure 3 This is a schematic diagram of the guide roller and lifting drive component in an automatic correction type food packaging paper waxing machine; Figure 4 This is a schematic diagram of the guide roller and connecting sleeve in an automatic correction-type food packaging paper waxing machine; Figure 5 This is a structural diagram of the connecting sleeve and telescopic connector in an automatic correction-type food packaging paper waxing machine. Figure 6 This is a schematic diagram of the vertical moving component in an automatic correction-type food packaging paper waxing machine.

[0015] In the diagram: 1. Base; 2. Guide roller; 201. Embedded cavity; 3. Connecting sleeve; 301. Strip groove; 4. Movable shaft; 401. Strip block; 5. Displacement sensor; 6. Electric telescopic rod; 7. Connecting seat; 8. Guide rail; 9. Rotary drum. Detailed Implementation

[0016] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0017] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0018] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0019] Please see Figures 1-6 In this embodiment of the present invention, an automatic correction type food packaging paper waxing machine includes a base 1, on which a guide roller 2 is provided. One end of the guide roller 2 is coaxially provided with a telescopic connector. One end of the telescopic connector is slidably inserted into the guide roller 2, and the other end extends outward along the axial direction of the guide roller 2. Vertical moving parts are installed on the base 1 and symmetrically arranged at both ends of the guide roller 2. The movable end of one vertical moving part is hinged to the telescopic connector on the corresponding side, and the movable end of the other vertical moving part is hinged to a rotating drum 9 installed on the guide roller 2 on the corresponding side, which can respectively restrict the corresponding ends of the guide roller 2 to rise and fall independently in the vertical direction. Detection units installed on the base 1 are provided on both sides of the paper feeding side of the guide roller 2, which can detect the position of the two edges of the paper respectively.

[0020] In this embodiment, when the waxing machine is running, the food packaging paper is fed uniformly onto the guide roller 2 along the paper feeding direction. The detection unit collects the position signals of the left and right edges of the paper in real time and transmits the single-sided offset and offset direction data of the paper to the PLC control system of the equipment. When the detection unit detects that the edge of the paper on one side exceeds the preset normal position threshold, the control system issues an independent action command to the vertical moving part on the corresponding side: the movable end of the vertical moving part on that side performs a lifting action in the vertical direction, thereby driving the corresponding end of the guide roller 2 to perform a slight lifting or lowering action simultaneously. Since the telescopic connector can slide along the axial direction of the guide roller 2 for compensation, it effectively avoids rigid jamming at both ends of the guide roller 2. At the same time, the guide roller 2 as a whole can form a slight asymmetrical tilt posture with the lifting and lowering of the single end, and finely adjust the position of the paper on the offset side, so that the offset edge of the paper gradually returns to the preset center position under the uniform traction of the guide roller 2.

[0021] In this embodiment, by independently and differentially adjusting the two ends of the guide roller 2, the guide roller 2 can make an asymmetrical response according to the unilateral deviation of the paper, which replaces the lag mode of the traditional waxing machine that relies on the passive squeezing correction of the subsequent positioning plate. The correction action is brought forward to be completed synchronously with the waxing process, which effectively avoids the dead creases and wrinkles caused by external pressure on thin food packaging paper.

[0022] As a further embodiment of this utility model, please refer to... Figure 4The guide roller 2 has an inner cavity 201 at both ends along the axial direction, and the rotating drum 9 and the connecting sleeve 3 are rotatably installed on the inner side of the two inner cavities 201 respectively.

[0023] The detection unit includes a displacement sensor 5, which is mounted on the side wall of the base 1, and the detection end of the displacement sensor 5 is positioned facing the corresponding side edge of the paper.

[0024] The telescopic connector includes a movable shaft 4, one end of which is slidably inserted into the connecting sleeve 3, and the movable shaft 4 and the connecting sleeve 3 are arranged coaxially.

[0025] Preferably, at least one set of strip grooves 301 are formed axially on the inner peripheral wall of the connecting sleeve 3, and a corresponding strip block 401 is provided on the outer peripheral wall of the movable shaft 4. The strip block 401 can be embedded in the strip groove 301 and slide in cooperation with the strip groove 301.

[0026] During the waxing process of packaging paper, displacement sensor 5 continuously scans the positions of both edges of the paper in real time. Once it detects a unilateral offset of the paper exceeding a threshold on one side, the control system immediately sends an action command to the corresponding lifting drive component, driving the movable shaft 4 to move vertically. At this time, the strip block 401 on the outer peripheral wall of the movable shaft 4 will slide axially relative to the strip groove 301 on the inner wall of the connecting sleeve 3. Through the directional cooperation between the strip groove 301 and the strip block 401, the axial sliding of the movable shaft 4 always maintains coaxiality, preventing radial wobbling or jamming, and ensuring that the lifting adjustment of one end of the guide roller 2 is stable and controllable throughout the entire process.

[0027] As a further embodiment of this utility model, please refer to... Figures 3-5 The vertical moving component includes symmetrically arranged guide rails 8, which are mounted on the base 1. A movable slot extending vertically is formed between the opposite sides of the two sets of guide rails 8. A connecting seat 7 is slidably mounted on both guide rails 8. The two sides of the connecting seat 7 form a directional sliding fit with the corresponding side of the guide rail 8. The movable shaft 4 and the end of the rotating drum 9 away from the guide roller 2 are respectively hinged to the corresponding side of the connecting seat 7. The lifting and lowering of the connecting seat 7 is controlled by a lifting drive component provided on the base 1.

[0028] The lifting drive includes an electric telescopic rod 6, which is mounted on the base 1. The movable rod of the electric telescopic rod 6 extends vertically and is connected to the top of the connecting seat 7.

[0029] When the displacement sensor 5 on the paper feed side detects a unilateral shift of the paper on one side, the control system sends a precise lifting command to the electric telescopic rod 6 on the corresponding side. The movable rod of the electric telescopic rod 6 moves linearly in the vertical direction, directly driving the connecting seat 7 connected to it to move synchronously. At this time, the two sides of the connecting seat 7 are confined within the movable slot and can only slide in a directional manner along the vertical extension direction of the guide rail 8, avoiding horizontal movement or deflection.

[0030] During the lifting and lowering of the connecting seat 7, the movable shaft 4 always remains coaxial with the end of the guide roller 2, and there will be no rigid misalignment. The electric telescopic rods 6 on both sides operate completely independently, and only move individually when the paper on the corresponding side is deviated. When the electric telescopic rod 6 on the side that has not triggered the correction command remains stationary, the connecting seat 7 stays stably at the preset reference position, so that the non-deviated side of the guide roller 2 always maintains the initial reference roller gap, and will not cause additional interference to the normally conveyed paper area.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A food packaging paper waxing machine based on automatic correction type, comprising a base (1), characterized in that: The base (1) is provided with a guide roller (2), and one end of the guide roller (2) is coaxially provided with a telescopic connector. One end of the telescopic connector is slidably inserted into the guide roller (2), and the other end extends outward along the axial direction of the guide roller (2). A vertical moving part is installed on the base (1) and symmetrically arranged at both ends of the guide roller (2). The movable end of one of the vertical moving parts is hinged to the telescopic connector on the corresponding side, and the movable end of the other vertical moving part is hinged to the rotating drum (9) installed on the guide roller (2) on the corresponding side. This can restrict the corresponding ends of the guide roller (2) to rise and fall independently in the vertical direction. Detection units are installed on the base (1) on both sides of the paper feeding side of the guide roller (2), which can detect the position of the two edges of the paper respectively.

2. The automatic correction-type food packaging paper waxing machine according to claim 1, characterized in that, The guide roller (2) has an inner cavity (201) at both ends along the axial direction, and the inner side of the two inner cavities (201) is respectively rotatably installed with the rotating drum (9) and the connecting sleeve (3).

3. The automatic correction-type food packaging paper waxing machine according to claim 1, characterized in that, The detection unit includes a displacement sensor (5), which is mounted on the side wall of the machine base (1) and the detection end of the displacement sensor (5) is set facing the corresponding side edge of the paper.

4. The automatic correction-type food packaging paper waxing machine according to claim 2, characterized in that, The telescopic connector includes a movable shaft (4), one end of which is slidably inserted into the connecting sleeve (3), and the movable shaft (4) and the connecting sleeve (3) are arranged coaxially.

5. A food packaging paper waxing machine based on automatic correction type according to claim 4, characterized in that, At least one set of strip grooves (301) are formed along the axial direction on the inner peripheral wall of the connecting sleeve (3), and a corresponding strip block (401) is provided on the outer peripheral wall of the movable shaft (4). The strip block (401) can be embedded in the strip groove (301) and slide in cooperation with the strip groove (301).

6. The food packaging paper waxing machine based on automatic correction type according to claim 4, characterized in that, The vertical moving component includes symmetrically arranged guide rails (8), which are mounted on the machine base (1). A movable slot extending in the vertical direction is formed between the opposite sides of the two sets of guide rails (8). A connecting seat (7) is slidably mounted on both guide rails (8). The two sides of the connecting seat (7) form a directional sliding fit with the corresponding side guide rail (8). The movable shaft (4) and the end of the rotating drum (9) away from the guide roller (2) are respectively hinged to the corresponding side connecting seat (7). The lifting and lowering of the connecting seat (7) is controlled by a lifting drive component mounted on the machine base (1).

7. The food packaging paper waxing machine based on automatic correction type according to claim 6, characterized in that, The lifting drive includes an electric telescopic rod (6), which is mounted on the base (1). The movable rod of the electric telescopic rod (6) extends vertically and is connected to the top of the connecting seat (7).

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