Concrete protection paste canning labeling machine

CN224752984UActive Publication Date: 2026-09-15WUHAN DOER OFFSHORE NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202522120459.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-30
Publication Date
2026-09-15
Estimated Expiration
2035-09-30

AI Technical Summary

Technical Problem

[0004]本实用新型要解决的技术问题是提供一种混凝土防护膏体罐装贴标机,可以防止传统的标签粘贴先将标签与标签纸分离再粘贴导致容易产生褶皱以及标签纸松弛造成褶皱的技术问题

Benefits of technology

通过设置防皱标签组件,可以避免绕卷辊和标签辊之间发生松动,进而导致标签纸发生松弛,使得标签不会因标签纸的松弛而造成褶皱,同时可以在分离组件的作用下,可以在标签粘贴完毕后,再对标签与标签纸进行分离,进而避免出现标签的褶皱,进而避免因褶皱导致信息读取不便的情况。

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Abstract

The utility model provides a kind of concrete protective paste body canning labelling machine, belong to labelling machine technical field. Including machine body, conveyer belt structure and anti-wrinkle labelling assembly, the machine body is rectangular and is provided with the machine groove for installing equipment, the conveyer belt structure is installed and is arranged in the machine groove inside the machine body, the anti-wrinkle labelling assembly is arranged in the machine groove inside the machine body, the anti-wrinkle labelling assembly includes mounting plate, two first rectangular plates are symmetrically fixedly connected in the mounting plate bottom near one side edge. By setting anti-wrinkle label assembly, it can avoid loosening between winding roller and label roller, and then cause label paper to relax, so that label will not cause wrinkle due to the relaxation of label paper, and at the same time, under the action of separating assembly, label and label paper can be separated after label pasting is completed, and then the wrinkle of label is avoided, and then the information reading inconvenience caused by wrinkle is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of labeling machine technology, and in particular to a concrete protective paste filling and labeling machine. Background Technology

[0002] Concrete protective paste is an important functional material for corrosion prevention and seepage prevention of concrete structures. Its bottled products need to be labeled with key information such as product model, production date, shelf life, and instructions for use. The quality of labeling directly affects the product's appearance standardization, information recognizability, and market competitiveness. In actual application, traditional labeling machines separate the label from the label paper before applying it. This leaves the label unsupported during application, making it prone to wrinkles when pressed down. Additionally, the label paper can loosen between the two rollers during application, causing further wrinkles that can obscure the information and make it difficult to read, which is very inconvenient.

[0003] Therefore, this application provides a concrete protective paste filling and labeling machine to meet the needs. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a concrete protective paste filling and labeling machine, which can prevent the traditional label pasting method of separating the label from the label paper before pasting, which easily leads to wrinkles and the loosening of the label paper causing wrinkles.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A concrete protective paste filling and labeling machine includes a machine body, which is rectangular and has a slot for installing the equipment. A conveyor belt structure, wherein the conveyor belt structure is installed inside the machine slot of the machine body; A wrinkle-resistant labeling assembly is disposed inside the machine slot of the machine body. The wrinkle-resistant labeling assembly includes a mounting plate. Two first rectangular plates are symmetrically fixedly connected to one side edge of the bottom of the mounting plate, and two second rectangular plates are symmetrically fixedly connected to the other side edge of the bottom of the mounting plate. A rotating rod is rotatably connected to the inner wall of one of the second rectangular plates. A circular baffle is fixedly connected to one end of the rotating rod, and a torsion spring is sleeved on the outer surface of the rotating rod. The two ends of the torsion spring are fixedly connected to the circular baffle and the second rectangular plate, respectively. A separation assembly is disposed on one side of one of the first rectangular plates, the separation assembly including a connecting plate, and a shovel blade is fixedly connected to one side of the connecting plate; Limiting components are disposed on both sides of the machine body.

[0006] The anti-wrinkle labeling component prevents the sticky note from wrinkling and thus the label from wrinkling. Meanwhile, the separation component allows the top of the label to be separated from the label paper after the label is pasted, which can effectively reduce the wrinkling rate of the label.

[0007] Optionally, a drive motor is installed on one side of another rectangular plate. The output end of the drive motor is fixedly connected to a first connecting rod. One end of the first connecting rod is fixedly connected to a first threaded chuck. The inner wall of the first threaded chuck is threadedly connected to a first threaded clamp rod. One end of the first threaded clamp rod is fixedly connected to a label roller.

[0008] Under the action of the drive motor, the first connecting rod can be rotated, and the first threaded chuck can cooperate with the first threaded chuck rod, thereby enabling the label roller to be disassembled and assembled.

[0009] Optionally, one end of the rotating rod is fixedly connected to a second threaded chuck, the inner wall of the second threaded chuck is threadedly connected to a second threaded rod, and one end of the second threaded rod is fixedly connected to a winding roller.

[0010] With the help of the second threaded chuck and the second threaded rod, the winding roller can be disassembled and assembled, thereby allowing the rotating rod to drive the winding roller to rotate.

[0011] Optionally, the outer surface of the label roller is wrapped with label paper, the bottom of the label paper is provided with a label, and a first hydraulic telescopic rod is installed on the top of the machine body, the output end of the first hydraulic telescopic rod is fixedly connected to the top of the mounting plate.

[0012] The first hydraulic telescopic rod can move the mounting plate up and down, thereby allowing the label to be pasted onto the top of the canned protective balm.

[0013] Optionally, an auxiliary plate is fixedly connected to one side of one of the rectangular plates, and a second hydraulic telescopic rod is installed on one side of the auxiliary plate. The output end of the second hydraulic telescopic rod is fixedly connected to one side of the connecting plate.

[0014] Under the action of the second hydraulic telescopic rod, the connecting plate can be moved, which in turn can drive the blade and other components to move.

[0015] Optionally, the limiting component includes a third hydraulic telescopic rod, which is installed on one side of the machine body. The output end of the third hydraulic telescopic rod is fixedly connected to a limiting plate, and a rubber plate is fixedly connected to one side of the limiting plate.

[0016] The third hydraulic telescopic rod can drive the movement of the limit plate, which can then work with the rubber plate to limit the tank on both sides.

[0017] Optionally, a limiting rod is fixedly connected to one side of the limiting plate, and a circular baffle is fixedly connected to one end of the limiting rod.

[0018] The limit rod can move in conjunction with the limit plate to guide and support the limit plate.

[0019] Optionally, a buffer spring is sleeved on the outer surface of the limiting rod, and the two ends of the buffer spring are fixedly connected to the circular baffle and the machine body, respectively.

[0020] The buffer spring can buffer the driving force of the third hydraulic telescopic rod during the sliding of the limit rod.

[0021] Compared with the prior art, this utility model has at least the following beneficial effects: By setting up an anti-wrinkle label component, loosening between the winding roller and the label roller can be avoided, which would cause the label paper to loosen. This prevents the label from wrinkling due to the loose label paper. At the same time, with the help of the separation component, the label can be separated from the label paper after the label is pasted, thus avoiding the appearance of label wrinkles and preventing the inconvenience of information reading caused by wrinkles.

[0022] By setting a limiting component, the cans placed on the conveyor belt structure can be limited on both sides, which can effectively prevent the labels from wrinkling or misaligning due to the positional displacement of the cans during the pasting process, thereby improving the accuracy of pasting. Attached Figure Description The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0023] Figure 1 A schematic diagram of a concrete protective paste filling and labeling machine; Figure 2 A schematic diagram of the machine structure for filling and labeling concrete protective paste; Figure 3 A schematic diagram of the mounting plate structure for a concrete protective paste filling and labeling machine; Figure 4 A schematic diagram of the label paper structure for a concrete protective paste filling and labeling machine; Figure 5 A schematic diagram of the blade structure of a concrete protective paste filling and labeling machine.

[0024] [Figure Labels] 1. Body; 2. Conveyor belt structure; 3. Anti-wrinkle labeling assembly; 31. First hydraulic telescopic rod; 32. Mounting plate; 33. First rectangular plate; 34. Second rectangular plate; 35. Drive motor; 36. First connecting rod; 37. First threaded clamp; 38. Rotating rod; 39. Circular baffle; 310. Torsion spring; 311. Second threaded clamp; 312. First threaded clamp; 313. Label roller; 314. Second threaded clamp; 315. Winding roller; 316. Label paper; 4. Separation assembly; 41. Auxiliary plate; 42. Second hydraulic telescopic rod; 43. Connecting plate; 44. Shovel blade; 5. Limiting assembly; 51. Third hydraulic telescopic rod; 52. Limiting plate; 53. Rubber plate; 54. Limiting rod; 55. Circular baffle; 56. Buffer spring.

[0025] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0028] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0029] In the description of this application, spatial relation terms such as "below," "under," "below," "below," "above," "over," etc., are used herein to describe the relationship between one element or feature shown in the figures and other elements or features. It should be understood that, in addition to the orientation shown in the figures, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figures is flipped, an element or feature described as "below" or "under" or "below" of other elements or features will be oriented "above" other elements or features. Therefore, the exemplary terms "below" and "under" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein are interpreted accordingly.

[0030] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0031] The concrete protective paste filling and labeling machine provided in this embodiment aims to solve the problems of wrinkles caused by separating the label from the label paper before pasting, as well as wrinkles caused by loose label paper, in traditional label pasting methods. The machine provides the following technical solutions to address wrinkles caused by loose label paper (316) and wrinkles caused by separating the label before pasting. It consists of a machine body 1, a conveyor belt structure 2, an anti-wrinkle labeling component 3, a separation component 4, and a limiting component 5, etc., with each component working together to prevent label wrinkling.

[0032] like Figures 1-5 As shown, an embodiment of this utility model provides a concrete protective paste filling and labeling machine, such as... Figure 1As shown, the machine body 1, conveyor belt structure 2, anti-wrinkle labeling assembly 3, separation assembly 4, and limiting assembly 5 are all included. The machine body 1 is a one-piece rectangular frame structure with a through-type groove running through its center. The inner wall of the groove has bolt holes for positioning and installing various functional components, ensuring that the coaxiality of each component is ≤0.5mm. The conveyor belt structure 2 is fixedly installed in the groove of the machine body 1 by bolts. Its conveying surface is flush with the front and rear openings of the groove, and the gap between the sides of the conveyor belt and the inner wall of the groove is ≤2mm, achieving no offset during conveying and ensuring stable conveying of the concrete protective paste container to be labeled. Figure 1 , Figure 2 and Figure 3 As shown, the anti-wrinkle labeling assembly 3 is vertically positioned above the machine slot of the machine body 1 and perpendicular to the conveying direction of the conveyor belt structure 2. It includes a mounting plate 32, a first hydraulic telescopic rod 31, two first rectangular plates 33, two second rectangular plates 34, a rotating rod 38, a circular baffle 39, and a torsion spring 310. The first hydraulic telescopic rod 31 is vertically fixed to the center of the top of the machine body 1 by flange bolts, and its output end is fixed to the center of the top of the mounting plate 32, ensuring that the horizontal deviation of the mounting plate 32 during lifting is ≤0.3mm; the two first rectangular plates 33... Symmetrically welded to the bottom of mounting plate 32 near the front edge, two second rectangular plates 34 are symmetrically welded to the bottom of mounting plate 32 near the rear edge. A rotating rod 38 is rotatably connected to the inner wall of one of the second rectangular plates 34 via bearings, ensuring radial runout ≤0.2mm during rotation. A circular baffle 39 is coaxially welded to one end of the rotating rod 38. A torsion spring 310 is sleeved on the outer surface of the rotating rod 38 near the circular baffle 39, with its two ends respectively embedded in the slots of the circular baffle 39 and the positioning holes of the second rectangular plate 34. Figure 1 and Figure 5 As shown, the separating component 4 is horizontally positioned outside one of the first rectangular plates 33, forming a 45° angle with the conveyor belt structure 2's conveying direction. It is used for precise separation of labels and label paper. It includes a connecting plate 43 and a separating blade 44. The blade of the separating blade 44 faces the label paper conveying direction, and the blade body is vertically fixed to one end of the connecting plate 43 by bolts. The parallelism between the blade and the end face of the connecting plate 43 is ≤0.1mm, ensuring that the label edges are not damaged during separation. Figure 1 As shown, the limiting components 5 are symmetrically arranged on the left and right sides of the machine body 1 and parallel to the conveying direction of the conveyor belt structure 2. They radially position the can to be labeled by synchronous action on both sides and include two sets of limiting units with the same structure.

[0033] The anti-wrinkle labeling component 3 prevents the label from wrinkling during the pasting process due to the loosening of the winding roller 315 and the label roller 313. The separation component 4 allows the label to be pasted first and then separated from the label paper 316, thus preventing wrinkles.

[0034] like Figure 3 and Figure 4 As shown, a drive motor 35 is fixedly mounted on the outer side of another first rectangular plate 33 by a motor bracket bolt. The output shaft of the drive motor 35 is coaxially fixed to one end of the first connecting rod 36 by a coupling. The axial movement of the coupling is ≤0.1mm to ensure lossless power transmission. The end of the first connecting rod 36 away from the drive motor 35 is coaxially welded and fixed to the first threaded caliper 37. The inner wall of the first threaded caliper 37 is provided with fine threads. The first threaded caliper 312 is threadedly connected to the first threaded caliper 37, and the thread fit clearance is ≤0.05mm. The end of the first threaded caliper 312 away from the first threaded caliper 37 is coaxially welded and fixed to the label roller 313. The threaded connection enables quick assembly and disassembly of the label roller 313, while ensuring the coaxiality of the label roller 313 and the output shaft of the drive motor 35.

[0035] like Figure 3 and Figure 4 As shown, the end of the rotating rod 38 away from the circular baffle 39 is coaxially welded and fixed to the second threaded retainer 311. The inner wall thread specification of the second threaded retainer 311 is the same as that of the first threaded retainer 37. The second threaded retainer 314 is threadedly connected to the second threaded retainer 311, and the end away from the second threaded retainer 311 is coaxially welded and fixed to the winding roller 315. Through the same threaded connection structure as the label roller 313, it is ensured that the winding roller 315 and the rotating rod 38 rotate synchronously, and the parallelism between the winding roller 315 and the label roller 313 is ≤0.2mm.

[0036] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a label paper 316 is wound around the outer surface of the label roller 313. A peelable label layer is laminated on the bottom surface of the label paper 316. The alignment between the edge of the label layer and the edge of the label paper 316 is ≤0.1mm. After the free end of the label paper 316 passes over the blade of the shovel 44, it is fixed to the outer surface of the winding roller 315 by adhesive. The adhesive surface is parallel to the axis of the winding roller 315 to ensure uniform tension of the label paper 316 and avoid wrinkles during labeling. The extension stroke of the first hydraulic telescopic rod 31 is 50-200mm. Through the rigid welding of the output end to the mounting plate 32, the lifting accuracy of the anti-wrinkle labeling component 3 is ±0.1mm, which is suitable for labeling cans of different heights.

[0037] like Figure 1 and Figure 5As shown, an auxiliary plate 41 is welded to the outside of the first rectangular plate 33, which is equipped with the separation component 4. The auxiliary plate 41 is perpendicular to the first rectangular plate 33 and has mounting holes on its surface that are compatible with the second hydraulic telescopic rod 42. The second hydraulic telescopic rod 42 is horizontally fixed to one side of the auxiliary plate 41 by bolts. Its output end is fixed to the side of the connecting plate 43 away from the shovel blade 44 by flange bolts. The flatness of the flange contact surface is ≤0.05mm, ensuring that there is no shaking when the second hydraulic telescopic rod 42 drives the separation component 4 to move horizontally, and the separation accuracy is ±0.2mm.

[0038] like Figure 1 and Figure 2 As shown, the limiting component 5 includes a third hydraulic telescopic rod 51, a limiting plate 52, and a rubber plate 53. The third hydraulic telescopic rod 51 is horizontally fixed to the mounting base on the side of the machine body 1 by bolts. The mounting base is integrally formed with the machine body 1 to ensure that the axis of the third hydraulic telescopic rod 51 is perpendicular to the conveying direction of the conveyor belt structure 2. The output end of the third hydraulic telescopic rod 51 is welded and fixed to the center of one side of the limiting plate 52. The tensile strength of the welding point is ≥200MPa to avoid deformation of the limiting plate 52 during limiting. The rubber plate 53 is completely bonded to the side of the limiting plate 52 away from the third hydraulic telescopic rod 51 by high-strength adhesive. The bonding strength is ≥10MPa, which not only ensures the buffering effect when the tank is limited, but also avoids scratches on the surface of the tank.

[0039] like Figure 2 As shown, two limiting rods 54 are symmetrically welded on the side of the limiting plate 52 near the third hydraulic telescopic rod 51. The two limiting rods 54 are located on the upper and lower sides of the third hydraulic telescopic rod 51 respectively, and are parallel to the axis of the third hydraulic telescopic rod 51. The end of the limiting rod 54 away from the limiting plate 52 passes through the side of the machine body 1 and is coaxially welded and fixed to the circular baffle 55. The double limiting rod structure ensures that the verticality deviation of the limiting plate 52 is ≤0.1mm when it is translated.

[0040] like Figure 2 As shown, each limiting rod 54 has a buffer spring 56 fitted on its outer surface. One end of the buffer spring 56 is embedded in the circular baffle 55, and the other end is embedded in the side of the machine body 1. Through the positioning action of the slot and groove, the buffer spring 56 is always in a coaxial state. The free length of the buffer spring 56 is greater than the maximum extension length of the limiting rod 54, providing a stable elastic tension when the limiting plate 52 is reset. At the same time, it assists the third hydraulic telescopic rod 51 in absorbing the impact force of the tank when limiting, avoiding hard collisions.

[0041] Working principle like Figures 1-5As shown, when in use, the tank is placed on top of the conveyor belt structure 2. At this time, the conveyor belt structure is started, so that the tank can move. After moving to the designated position, the third hydraulic telescopic rod 51 is started, so that the third hydraulic telescopic rod 51 can drive the limit plate 52 to move, which in turn can drive the limit rod 54 to slide, which in turn causes the buffer spring 56 to deform. At this time, the first hydraulic telescopic rod 31 is activated, so that the mounting plate 32 can move up and down, so that the label paper 316 can cover and press down on the top of the tank. At this time, the drive motor 35 is started, which can drive the first connecting rod 36 to rotate, which in turn can drive the label roller 313 to rotate, which in turn can drive the winding roller 315 to rotate, causing the torsion spring 310 to deform, which can then tighten the label paper 316. At this time, the second hydraulic telescopic rod 42 is activated, which allows the connecting plate 43 to drive the shovel blade 44 to move, thereby separating the label from the label paper 316 and completing the labeling. At this time, according to the above principle, the can is separated from the conveyor belt structure 2.

[0042] While embodiments or examples of this disclosure have been described with reference to the accompanying drawings, it should be understood that the above embodiments are merely exemplary embodiments or examples, and the scope of this utility model is not limited by these embodiments or examples, but only by the granted claims and their equivalents. Various elements in the embodiments or examples may be omitted or replaced by their equivalents. Furthermore, the steps may be performed in a different order than that described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as the technology evolves, many elements described herein can be replaced by equivalents that appear after this disclosure.

Claims

1. A concrete protective paste filling and labeling machine, characterized in that, include: The body (1) is rectangular and has a slot for installing equipment; Conveyor belt structure (2), the conveyor belt structure (2) is installed inside the machine slot of the machine body (1); Anti-wrinkle labeling assembly (3), the anti-wrinkle labeling assembly (3) is set inside the machine slot of the machine body (1), the anti-wrinkle labeling assembly (3) includes a mounting plate (32), two first rectangular plates (33) are symmetrically fixedly connected to the bottom of the mounting plate (32) near one side edge, and two second rectangular plates (34) are symmetrically fixedly connected to the bottom of the mounting plate (32) near the other side edge. A rotating rod (38) is rotatably connected to the inner wall of one of the second rectangular plates (34), a round baffle (39) is fixedly connected to one end of the rotating rod (38), and a torsion spring (310) is sleeved on the outer surface of the rotating rod (38). The two ends of the torsion spring (310) are fixedly connected to the round baffle (39) and the second rectangular plate (34) respectively. Separation component (4), the separation component (4) is disposed on one side of one of the first rectangular plates (33), the separation component (4) includes a connecting plate (43), and a shovel blade (44) is fixedly connected to one side of the connecting plate (43). Limiting components (5) are disposed on both sides of the body (1).

2. The concrete protective paste filling and labeling machine according to claim 1, characterized in that, A drive motor (35) is installed on one side of another rectangular plate (33). The output end of the drive motor (35) is fixedly connected to a first connecting rod (36). One end of the first connecting rod (36) is fixedly connected to a first threaded sleeve (37). The inner wall of the first threaded sleeve (37) is threadedly connected to a first threaded rod (312). One end of the first threaded rod (312) is fixedly connected to a label roller (313).

3. The concrete protective paste filling and labeling machine according to claim 1, characterized in that, One end of the rotating rod (38) is fixedly connected to a second threaded chuck (311), and the inner wall of the second threaded chuck (311) is threadedly connected to a second threaded rod (314), and one end of the second threaded rod (314) is fixedly connected to a winding roller (315).

4. The concrete protective paste filling and labeling machine according to claim 2, characterized in that, The label roller (313) is wrapped with label paper (316) on its outer surface. The bottom of the label paper (316) is provided with a label. The top of the machine body (1) is provided with a first hydraulic telescopic rod (31). The output end of the first hydraulic telescopic rod (31) is fixedly connected to the top of the mounting plate (32).

5. The concrete protective paste filling and labeling machine according to claim 1, characterized in that, An auxiliary plate (41) is fixedly connected to one side of one of the rectangular plates (33), and a second hydraulic telescopic rod (42) is installed on one side of the auxiliary plate (41). The output end of the second hydraulic telescopic rod (42) is fixedly connected to one side of the connecting plate (43).

6. The concrete protective paste filling and labeling machine according to claim 1, characterized in that, The limiting component (5) includes a third hydraulic telescopic rod (51), which is installed on one side of the machine body (1). The output end of the third hydraulic telescopic rod (51) is fixedly connected to a limiting plate (52), and a rubber plate (53) is fixedly connected to one side of the limiting plate (52).

7. The concrete protective paste filling and labeling machine according to claim 6, characterized in that, A limiting rod (54) is fixedly connected to one side of the limiting plate (52), and a circular baffle (55) is fixedly connected to one end of the limiting rod (54).

8. The concrete protective paste filling and labeling machine according to claim 7, characterized in that, The outer surface of the limiting rod (54) is fitted with a buffer spring (56), and the two ends of the buffer spring (56) are fixedly connected to the circular baffle (55) and the body (1) respectively.