Electric pole bottom die release agent smearing mechanism and bottom die cleaning equipment

Abstract

The utility model belongs to the technical field of concrete electric pole production equipment, and particularly relates to an electric pole bottom die release agent smearing mechanism and bottom die cleaning equipment, which comprise a reducing mechanism, and the reducing mechanism comprises a driving connecting rod group and a plurality of follow-up connecting rod groups; the driving connecting rod group comprises a lower connecting rod, a driving push-pull rod and a movable plate; one end of the lower connecting rod is hinged to the vertical plate; one end of the driving push-pull rod is hinged to the lower connecting rod, and the other end is hinged to the movable plate; the follow-up connecting rod group comprises a follow-up connecting rod and a follow-up push-pull rod; one end of the follow-up connecting rod is hinged to the vertical plate; one end of the follow-up push-pull rod is hinged to the follow-up connecting rod, and the other end is hinged to the movable plate; when the lower connecting rod makes contact with the inner wall of the bottom die, the sponge brush on the follow-up connecting rod is driven to be tightly attached to the inner wall of the bottom die. Through the design of the driving connecting rod set and the follow-up connecting rod set, the variable-diameter mechanism can automatically expand the angle according to the change of the inner diameter size of the bottom die, and dynamic attachment of the sponge brush and the inner wall of the bottom die is achieved.

Description

Technical Field

[0001] This utility model belongs to the technical field of concrete pole production equipment, specifically a pole bottom mold release agent application mechanism and bottom mold cleaning equipment. Background Technology

[0002] In the production of concrete utility poles, the quality of the release agent coating on the inner wall of the steel mold directly affects the pole's molding effect and surface finish. In traditional processes, release agent coating mainly relies on manual operation. Workers use a mop to apply the release agent repeatedly to the inner wall of the steel mold. This method is labor-intensive, results in poor coating uniformity, and is inefficient. It can easily lead to release agent residue or incomplete coverage, which in turn causes defects in the pole's appearance.

[0003] Existing technologies have introduced some automated equipment to replace manual operations, such as a scheme using three sets of fixed sponge blocks to sequentially apply the release agent along the axial direction of the steel mold. However, such equipment has significant drawbacks: First, the fixed-radius sponge blocks can only fit a limited number of steel mold inner diameters. When the inner diameter of the steel mold changes (especially when the radius difference in the latter half of the pole increases), they cannot effectively adhere to the inner wall, resulting in uneven application of the release agent or even localized missed areas. Second, residual release agent accumulates on the inner wall of the steel mold, forming spots or streaks after drying, severely affecting the appearance quality of the pole. In addition, existing diameter-changing mechanisms mostly use gear and rack drives, which have poor load-bearing capacity and are prone to jamming and wear during frequent diameter adjustments and high-speed operation. They also have complex structures and high maintenance costs.

[0004] Due to the wide variety of steel molds and significant differences in their inner diameters in actual production scenarios, and the tendency of molds to tilt during chain conveyor transport due to positioning deviations or vibrations, existing rigid coating mechanisms cannot adapt to changes in the spatial orientation of the steel molds, exacerbating the problem of uneven mold release agent coating. Although some equipment has attempted to introduce flexible brushes, their material selection and structural design are unreasonable, failing to ensure sufficient contact with inner walls of different curvatures and struggling to resist the flow resistance of the mold release agent, resulting in poor practical application effects.

[0005] In summary, there is an urgent need for a mold release agent coating device with adaptive diameter change capability to solve the technical problems of poor compatibility with multi-specification steel molds and unstable coating quality. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a release agent application mechanism for pole bottom molds and a bottom mold cleaning device. Through the design of the drive linkage group and the follower linkage group, the variable diameter mechanism can automatically expand its angle according to the change in the inner diameter of the bottom mold, thereby achieving dynamic adhesion between the sponge brush and the inner wall of the bottom mold.

[0007] The first objective of this utility model is to provide a release agent application mechanism for the bottom mold of a utility pole, including a lifting mechanism and a diameter-changing mechanism disposed below the lifting mechanism, wherein the diameter-changing mechanism is fixed on the lifting end of the lifting mechanism.

[0008] The diameter changing mechanism includes a mounting plate, a vertical plate fixed to the lower surface of the mounting plate, and a drive linkage group and multiple follower linkage groups set on the vertical plate. The drive linkage group is located below the vertical plate, and the multiple follower linkage groups are located on both sides of the vertical plate.

[0009] The drive linkage assembly includes a lower linkage, a drive push-pull rod, and a movable plate. One end of the lower linkage is hinged to the vertical plate, and the other end is free. One end of the drive push-pull rod is hinged to the middle part of the lower linkage, and the other end is hinged to the lower side of the movable plate. A central shaft located between the drive linkage assembly and the follower linkage assembly is fixed on the vertical plate. The central shaft is perpendicular to the vertical plate, and the movable plate is movably mounted on the central shaft.

[0010] The follower linkage assembly includes a follower link and a follower push-pull rod. One end of the follower link is hinged to the vertical plate, and the other end is a free end. One end of the follower push-pull rod is hinged to the middle part of the follower link, and the other end is hinged to the side of the movable plate. A sponge brush is installed on the free end of the follower link. When the lifting end of the lifting mechanism descends and the lower link contacts the inner wall of the bottom mold, the lower link drives the sponge brush on the follower link to stick tightly to the inner wall of the bottom mold.

[0011] Furthermore, a pushing assembly is provided on the side of the movable plate away from the vertical plate to enable the lower connecting rod and the follower connecting rod to adapt to the inner wall of the bottom mold.

[0012] Furthermore, a fixed plate is also fixed on the mounting plate, which is opposite to the vertical plate. One end of the central shaft is fixed on the fixed plate, and the other end is fixed on the fixed plate. The movable plate is movably disposed between the fixed plate and the vertical plate. The pushing component includes an elastic element sleeved on the central shaft between the fixed plate and the movable plate. The elastic element is in a compressed state.

[0013] In the initial state, driven by the elastic element, the movable plate moves towards the vertical plate, causing the diameter-changing mechanism to unfold.

[0014] Furthermore, the elastic element is a spring.

[0015] Furthermore, a guide wheel is provided at the end of the lower connecting rod away from the vertical plate.

[0016] Furthermore, there are two follower linkages, which are respectively set on the left and right sides of the vertical plate. The sponge brush is fixed on the lower surface of the follower linkage. The sponge brush is an arc-shaped brush and is adapted to the inner wall of the bottom mold.

[0017] Furthermore, the movable plate is fitted onto the central shaft via a guide tube. The movable plate has a through hole, and it is fitted onto the outside of the guide tube through the through hole. The guide tube and the movable plate are fixedly connected by a fastener.

[0018] Furthermore, the lifting mechanism includes a mounting frame and a cylinder fixed on the mounting frame, with the cylinder's extension rod passing through the mounting frame and fixedly connected to the mounting plate.

[0019] Furthermore, guide rods are evenly arranged around the outer periphery of the cylinder. The guide rods are mounted on the mounting bracket by moving up and down through linear bearings. The lower end of the guide rod passes through the mounting bracket and is fixedly connected to the mounting plate.

[0020] The second objective of this invention is to provide a bottom mold cleaning device, including the pole bottom mold release agent application mechanism described in any of the above-mentioned embodiments.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] (1) This utility model enables the variable diameter mechanism to automatically adjust the unfolding angle according to the change of the inner diameter of the bottom mold by the coordinated action of the pushing component, the driving linkage group, and the follower linkage group, so that the sponge brush can be dynamically attached to the inner wall of the bottom mold. When the inner diameter of the bottom mold increases, the pushing component pushes the movable plate to unfold the lower linkage and the follower linkage, and the sponge brush is always in close contact with the inner wall of the bottom mold. When the inner diameter of the bottom mold decreases, the lower linkage abuts against the inner wall of the bottom mold, causing the follower linkage to retract inward. This application does not require manual intervention and significantly improves the adaptability to different rod types.

[0023] (2) The pushing component of this application is a spring. The elastic characteristics of the spring enable the variable diameter mechanism to have a certain floating ability, which can adapt to the tilt or offset generated when the steel mold is conveyed on the chain machine, avoid the problem of local overload or disengagement of the sponge brush due to the incorrect position of the steel mold, and improve the stability of the mechanism operation.

[0024] (3) This application solves the problems of poor compatibility and unstable quality in the coating process of release agent for multi-specification steel molds through mechanical self-adaptation and elastic floating design. The sponge brush is always in flexible contact with the inner wall of the bottom mold through the cooperation of the drive linkage group and the follower linkage group, ensuring the uniformity of coating. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0026] Figure 1A structural diagram (I) of the pole bottom mold release agent application mechanism provided in an embodiment of this application;

[0027] Figure 2 A structural diagram (II) of the pole bottom mold release agent application mechanism provided in an embodiment of this application;

[0028] Figure 3 This is a schematic diagram of the unfolded structure of a variable diameter mechanism provided in an embodiment of this application;

[0029] Figure 4 This is a schematic diagram of the retractable structure of a variable diameter mechanism provided in an embodiment of this application;

[0030] Figure 5 This is a schematic diagram showing the cooperation between the pole bottom mold release agent application mechanism and the bottom mold according to an embodiment of this application;

[0031] The components are: 1-lifting mechanism, 11-mounting bracket, 12-cylinder, 13-guide rod, 14-linear bearing, 2-diameter changing mechanism, 21-mounting plate, 22-vertical plate, 23-drive linkage group, 231-lower linkage, 232-drive push-pull rod, 233-moving plate, 234-guide wheel, 235-guide cylinder, 24-follower linkage group, 241-follower linkage, 242-follower push-pull rod, 243-sponge brush, 25-fixed plate, 26-central shaft, 3-push assembly, 31-elastic element, 4-bottom mold. Detailed Implementation

[0032] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] The following is in conjunction with the appendix Figure 1 To be continued Figure 5 The present invention will be described in detail with specific embodiments.

[0034] like Figures 1 to 5 As shown, this utility model provides a release agent application mechanism for the bottom mold of a utility pole, including a lifting mechanism 1 and a diameter-changing mechanism 2 disposed below the lifting mechanism 1. The diameter-changing mechanism 2 is fixed on the lifting end of the lifting mechanism 1. The lifting mechanism 1 drives the diameter-changing mechanism 2 to move up and down to contact or detach from the inner wall of the bottom mold 4.

[0035] The variable diameter mechanism 2 includes a mounting plate 21, a vertical plate 22 fixed to the lower surface of the mounting plate 21, a drive linkage group 23 and multiple follower linkage groups 24 disposed on the vertical plate 22. The lifting end of the lifting mechanism 1 is fixedly connected to the mounting plate 21. The mounting plate 21 is a horizontal plate. The drive linkage group 23 is located below the vertical plate 22, and the multiple follower linkage groups 24 are located on both sides of the vertical plate 22. The drive linkage group 23 can drive the follower linkage groups 24 to synchronously expand outward or retract inward. The drive linkage group 23 includes a lower... The lower connecting rod 231, the drive push-pull rod 232, and the movable plate 233 are connected together. One end of the lower connecting rod 231 is hinged to the vertical plate 22, and the other end is a free end that contacts the inner wall of the bottom mold 4. One end of the drive push-pull rod 232 is hinged to the middle part of the lower connecting rod 231, and the other end is hinged to the lower side of the movable plate 233. A central shaft 26 located between the drive connecting rod group 23 and the follower connecting rod group 24 is fixed on the vertical plate 22. The central shaft 26 is perpendicular to the vertical plate 22, and the movable plate 233 is movably mounted on the central shaft 26.

[0036] The follower linkage assembly 24 includes a follower link 241 and a follower push-pull rod 242. One end of the follower link 241 is hinged to the vertical plate 22, and the other end is free. One end of the follower push-pull rod 242 is hinged to the middle part of the follower link 241, and the other end is hinged to the side of the movable plate 233. The movable plate 233 moves on the central axis 26, causing the lower link 231 and the follower link 241 to expand outward or retract inward. The movable plate 233 moves away from the vertical plate 22. A pushing assembly 3 is provided on one side to make the lower connecting rod 231 and the follower connecting rod 241 adapt to the inner wall of the bottom mold 4. The pushing assembly 3 of this application can be a spring, a pneumatic component or a hydraulic buffer component, etc., but is not limited to these. A sponge brush 243 is installed on the free end of the follower connecting rod 241. When the lifting end of the lifting mechanism 1 descends and the lower connecting rod 231 contacts the inner wall of the bottom mold 4, the lower connecting rod 231 drives the sponge brush 243 on the follower connecting rod 241 to stick to the inner wall of the bottom mold 4. The specific working principle is as follows: the lifting mechanism 1 drives the diameter changing mechanism 2 to descend, so that the sponge brush 243 on the lower connecting rod 231 and the follower connecting rod 421 contacts the inner wall of the bottom mold 4. Then, driven by other transverse moving mechanisms, the lifting mechanism 1 and the diameter changing mechanism 2 move synchronously along the axial direction of the bottom mold 4. Under normal circumstances, the diameter changing mechanism 2 moves from the small diameter end of the bottom mold to the large diameter end. During the movement, the lower connecting rod 231 contacts the inner wall of the bottom mold 3 with different inner diameters, changing the angle between the lower connecting rod 231 and the horizontal axis. It also drives the movable plate 233 to move by driving the push-pull rod 232. The movement of the movable plate 233 drives the follower connecting rod 241 to unfold, so that the sponge brush 243 fixed on the follower connecting rod 241 can always be in close contact with the inner wall of the bottom mold 4.

[0037] This application utilizes the linkage design of the drive linkage group 23 and the follower linkage group 24, combined with the movement of the movable plate 233 on the central axis 26, to enable the variable diameter mechanism 2 to automatically adjust its unfolding range according to the inner diameter of the bottom mold 4. When the lifting mechanism 1 drives the variable diameter mechanism 2 to descend and contact the bottom mold 4, the lower linkage 231 contacts the inner wall of the bottom mold 4 and triggers the follower linkage group 24 to unfold or retract synchronously. This allows the sponge brushes 243 on the two follower linkages 241 to adaptively conform to the inner walls of the bottom molds with different inner diameters. This is especially suitable for scenarios with gradual or abrupt changes in inner diameter, effectively avoiding the problem of release agent leakage or accumulation caused by size mismatch in traditional fixed radius mechanisms, and significantly improving coating uniformity. In addition, the movable plate 233 is slidably mounted on the central shaft 26 to achieve axial floating of the movable plate 233. Combined with the feedback of the push component 3, the diameter changing mechanism 2 has adaptive adjustment capability when contacting the bottom mold. Even if the bottom mold 4 has tilting or positioning deviation during the conveying process, the drive linkage group 23 and the follower linkage group 24 can still dynamically adjust the unfolding angle and contact pressure of the sponge brush 243 to ensure that the sponge brush 243 is always tightly attached to the inner wall, eliminating coating blind spots or local overload problems caused by incorrect mold posture. The lower linkage 231 of this application abuts against the inner wall of the bottom mold 4, so that the drive push-pull rod 232 directly controls the displacement of the movable plate 233. The movable plate 233 then drives multiple follower linkages 241 to unfold and retract synchronously through the follower push-pull rod 242, realizing the diameter changing effect of single-point drive and multi-point linkage. This structure ensures that all sponge brushes 243 perform axial and circumferential synchronous movements on the bottom mold 4, quickly covering the entire inner wall area, shortening the coating time and improving work efficiency.

[0038] It should be further explained that this application does not limit the hinged connection method between the components. For example, a U-shaped connecting ear is provided on the circumferential outer wall of the vertical plate 22. One end of the lower connecting rod 231 and the follower connecting rod 241 are located in the connecting ear and connected by a connecting shaft to achieve relative rotation. Similarly, the drive push-pull rod 232 and the follower push-pull rod 242 are both connecting rods arranged parallel to each other. The two connecting rods of the follower push-pull rod 242 are located on the upper and lower sides of the follower connecting rod 241 and the upper and lower sides of the movable plate 233, respectively, and are connected by a connecting shaft to achieve relative rotation. The two connecting rods of the drive push-pull rod 232 are located on both sides of the lower connecting rod 231 and the both sides of the movable plate 233, respectively, and are connected by a connecting shaft to achieve relative rotation.

[0039] Specifically, in some embodiments, see [reference] Figure 3 and Figure 4The mounting plate 21 is also fixed with a fixed plate 25 that is opposite to the vertical plate 22. One end of the central shaft 26 is fixed to the vertical plate 22, and the other end is fixed to the fixed plate 25. The movable plate 233 is movably disposed between the fixed plate 25 and the vertical plate 22. The pushing component 3 includes an elastic element 31 sleeved on the central shaft 26 between the fixed plate 25 and the movable plate 233. That is, one end of the elastic element 31 abuts against the fixed plate 25, and the other end abuts against the movable plate 233. In the initial state, the elastic element 31 is in a compressed state or a natural state. In other words, under the action of the elastic element 31, the movable plate 233 moves towards the vertical plate 22, causing the diameter changing mechanism 2 to be in an unfolded state. The unfolding angle of the diameter changing mechanism 2 in the initial state is greater than the inner diameter of most bottom molds 4 on the market, ensuring the versatility of the diameter changing mechanism 2. This application forms a stable double-support frame structure by setting a fixed plate 25 that is relatively spaced from the vertical plate 22 and fixing both ends of the central shaft 26 between the fixed plate 25 and the vertical plate 22 respectively. When the movable plate 233 slides along the central axis between the fixed plate 25 and the vertical plate 22, the double-end fixed design greatly reduces the radial sway of the movable plate 233, ensuring the accuracy and consistency of the diameter change action of the lower connecting rod 231 and the follower connecting rod 241.

[0040] It should be noted that in this application, the elastic element 31 can be designed to be in a compressed state in its initial state. The elastic element 31 is pre-compressed and installed between the fixed plate 25 and the movable plate 233, so that the elastic element 31 in its initial state pushes the movable plate 233 to move closer to the vertical plate 22, so that the diameter-changing mechanism 2 is in its maximum extended state. The above design can ensure that the mechanism automatically maintains the preparatory posture when it does not contact the bottom mold. When the lifting mechanism 1 drives the diameter-changing mechanism 2 to descend and contact the inner wall of the bottom mold 4, the lower connecting rod 231 compresses the elastic element 31 towards the fixed plate 25 after contacting the inner wall of the bottom mold 4, so as to achieve adaptive change of the inner diameter of the bottom mold 4.

[0041] Preferably, the elastic element 31 in this embodiment is a spring. As a standard component, the spring has the advantages of low cost and easy replacement, and its linear elastic characteristics can adapt to frequent compression-rebound cycles, with durability far exceeding that of complex pneumatic or hydraulic buffer components.

[0042] In some embodiments, see Figure 3 A guide wheel 234 is provided at the end of the lower connecting rod 231 away from the vertical plate 22. The guide wheel 234 converts the sliding friction between the lower connecting rod 231 and the inner wall of the bottom mold 4 into rolling friction, which significantly reduces the resistance of the variable diameter mechanism 2 when it moves axially in the bottom mold and avoids the problem of mechanism jamming or shaking caused by excessive friction. In addition, the arc profile of the guide wheel 234 can adapt to the local concavity or curvature change of the inner wall of the bottom mold 4. The cutting angle of the lower connecting rod is adjusted in real time through rolling contact, avoiding local stress concentration or poor fit caused by rigid contact.

[0043] In some embodiments, the guide wheel 234 is made of non-metallic materials such as nylon and polyurethane or is coated with rubber, which can avoid direct contact with the inner wall of the steel mold during rolling, effectively prevent scratches on the inner wall of the bottom mold, maintain the smoothness of the inner wall of the bottom mold, reduce the maintenance cost of the bottom mold and extend its service life.

[0044] In the preferred embodiment, see Figure 3 and Figure 4 There are two follower linkage assemblies 24, symmetrically arranged on the left and right sides of the vertical plate 22. A sponge brush 243 is fixed to the lower surface of the follower linkage 241. The sponge brush 243 is an arc-shaped brush adapted to the inner wall of the bottom mold 4. This application distributes the follower linkage 241 symmetrically on both sides of the vertical plate 22. Through synchronous unfolding, the sponge brushes 243 on both sides simultaneously contact the inner wall of the bottom mold 4, achieving bidirectional synchronous coating of the inner wall of the bottom mold 4. Compared to an asymmetrical layout, this design eliminates the problem of uneven coating caused by unilateral force application, ensuring that the release agent is evenly covered circumferentially along the inner wall of the bottom mold, avoiding missed areas or blind spots.

[0045] It should be noted that the sponge brush 243 of this application is fixed to the lower surface of the follower link 241 in a detachable manner, and the arc-shaped brush body adopts a modular design, which can be replaced individually after wear without disassembling the entire diameter changing mechanism 2. At the same time, the symmetrical arrangement of the follower link group 24 can realize the interchangeability of the left and right parts, reduce the types of spare parts, and reduce maintenance costs.

[0046] In some embodiments, see Figure 3 The movable plate 233 is fitted onto the central shaft 26 via a guide cylinder 235. The movable plate 233 has a through hole, through which it is fitted onto the outside of the guide cylinder 235. The guide cylinder 235 and the movable plate 233 are fixedly connected by fasteners. It is known that the movable plate 233 is typically a thin structure. When the thin movable plate 233 is directly fitted onto the central shaft 26, it is prone to offset and torsion during axial movement. The design of the guide cylinder 235 increases the contact area between the movable plate 233 and the central shaft 26, allowing the movable plate 233 to move more stably on the central shaft 26. Furthermore, the guide cylinder 235 and the movable plate 233 are detachably connected via fasteners (such as bolts and pins), forming an independent functional module. This allows the guide cylinder 235 and the movable plate 233 to be pre-assembled and then installed as a whole onto the central shaft 26, significantly simplifying the assembly process.

[0047] In some embodiments, see Figure 2The lifting mechanism 1 includes a mounting frame 11 and a cylinder 12 fixed on the mounting frame 11. The telescopic rod of the cylinder 12 passes through the mounting frame 11 and is fixedly connected to the mounting plate 21. The mounting frame 11 serves as an integral load-bearing frame and is rigidly fixed to the cylinder 12, forming a stable force-bearing structure. The cylinder 12, as a linear drive element, directly drives the lifting and lowering of the variable diameter mechanism 2 through the telescopic rod. The power transmission path is short and there is no intermediate transmission loss. Combined with the high response characteristics of the pneumatic system, the rapid lifting and lowering action of the variable diameter mechanism 2 can be achieved.

[0048] In some embodiments, guide rods 13 are evenly arranged around the outer periphery of the cylinder 12. The guide rods 13 are mounted on the mounting frame 11 and move up and down via linear bearings 14. The lower end of the guide rods 13 passes through the mounting frame 11 and is fixedly connected to the mounting plate 21. The evenly arranged guide rods 13 and the cylinder 12 form a distributed support structure, eliminating the tilting, twisting, or lateral shaking of the mounting plate 21 that may be caused by the single-point drive of the telescopic rod of the cylinder 12. This ensures that the diameter-changing mechanism 2 always moves up and down in the vertical direction, avoiding misalignment between the sponge brush 243 and the inner wall of the bottom mold 4 due to deviation in the movement trajectory, and ensuring the accuracy of the coating path. At the same time, the linear bearings 14 and the guide rods 13 form a high-precision sliding pair, which can significantly reduce the lifting resistance.

[0049] This application achieves the function of automatic cleaning and application of release agent for the bottom mold through the design of the variable diameter mechanism 2, which solves the problem of laborious manual work. Furthermore, the adaptive floating mechanism ensures the application quality of the release agent and the cleaning effect of the bottom mold. At the same time, the variable diameter mechanism 2 can be applied to bottom molds with different inner diameters, and has high versatility.

[0050] This utility model also provides a bottom mold cleaning device, including the pole bottom mold release agent application mechanism of any of the above-mentioned embodiments. The bottom mold cleaning device provided in this application adopts all the technical solutions of all embodiments of the pole bottom mold release agent application mechanism, and therefore has at least all the beneficial effects brought about by the technical solutions of the embodiments of the pole bottom mold release agent application mechanism, which will not be repeated here.

[0051] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A mechanism for applying a release agent to the bottom mold of a utility pole, characterized in that, It includes a lifting mechanism and a diameter-changing mechanism disposed below the lifting mechanism, wherein the diameter-changing mechanism is fixed on the lifting end of the lifting mechanism; The diameter-changing mechanism includes a mounting plate, a vertical plate fixed to the lower surface of the mounting plate, and a drive linkage group and a plurality of follower linkage groups disposed on the vertical plate. The drive linkage group is located below the vertical plate, and the plurality of follower linkage groups are located on both sides of the vertical plate. The drive linkage assembly includes a lower linkage, a drive push-pull rod, and a movable plate. One end of the lower linkage is hinged to the vertical plate, and the other end is a free end. One end of the drive push-pull rod is hinged to the middle part of the lower linkage, and the other end is hinged to the lower side of the movable plate. A central shaft located between the drive linkage assembly and the follower linkage assembly is fixed on the vertical plate. The central shaft is perpendicular to the vertical plate, and the movable plate is movably mounted on the central shaft. The follower linkage assembly includes a follower linkage and a follower push-pull rod. One end of the follower linkage is hinged to the vertical plate, and the other end is a free end. One end of the follower push-pull rod is hinged to the middle part of the follower linkage, and the other end is hinged to the side of the movable plate. A sponge brush is installed on the free end of the follower linkage. When the lifting end of the lifting mechanism descends and the lower linkage contacts the inner wall of the bottom mold, the lower linkage drives the sponge brush on the follower linkage to adhere to the inner wall of the bottom mold.

2. The pole bottom mold release agent application mechanism according to claim 1, characterized in that, The movable plate is provided with a pushing component on the side away from the vertical plate, which enables the lower connecting rod and the follower connecting rod to adapt to the inner wall of the bottom mold.

3. The pole bottom mold release agent application mechanism according to claim 2, characterized in that, The mounting plate is also fixed with a fixed plate that is opposite to the vertical plate. One end of the central shaft is fixed to the fixed plate and the other end is fixed to the fixed plate. The movable plate is movably disposed between the fixed plate and the vertical plate. The pushing assembly includes an elastic element sleeved on the central shaft between the fixed plate and the movable plate. The elastic element is in a compressed state. In the initial state, driven by the elastic element, the movable plate moves towards the vertical plate, causing the diameter-changing mechanism to unfold.

4. The pole bottom mold release agent application mechanism according to claim 3, characterized in that, The elastic element is a spring.

5. The pole bottom mold release agent application mechanism according to claim 1, characterized in that, A guide wheel is provided at the end of the lower connecting rod away from the vertical plate.

6. The pole bottom mold release agent application mechanism according to claim 1, characterized in that, There are two follower linkages, which are respectively set on the left and right sides of the vertical plate. The sponge brush is fixed on the lower surface of the follower linkage. The sponge brush is an arc-shaped brush and is adapted to the inner wall of the bottom mold.

7. The pole bottom mold release agent application mechanism according to claim 1, characterized in that, The movable plate is mounted on the central shaft via a guide cylinder. The movable plate has a through hole, and the movable plate is mounted on the outside of the guide cylinder through the through hole. The guide cylinder and the movable plate are fixedly connected by a fastener.

8. The pole bottom mold release agent application mechanism according to claim 1, characterized in that, The lifting mechanism includes a mounting frame and a cylinder fixed on the mounting frame. The telescopic rod of the cylinder passes through the mounting frame and is fixedly connected to the mounting plate.

9. The pole bottom mold release agent application mechanism according to claim 8, characterized in that, Guide rods are evenly arranged around the outer periphery of the cylinder. The guide rods are mounted on the mounting bracket by moving up and down through linear bearings. The lower end of the guide rod passes through the mounting bracket and is fixedly connected to the mounting plate.

10. A bottom mold cleaning device, characterized in that, Includes the pole bottom mold release agent application mechanism as described in any one of claims 1-9.

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