Cast iron pipe zinc spraying machine

Abstract

The utility model discloses a cast iron pipe zinc spraying machine, and particularly relates to the technical field of cast iron pipe zinc spraying, the cast iron pipe zinc spraying machine comprises a base, a clamping rotating mechanism is fixedly installed on one side of the top end of the base, a supporting mechanism is arranged in the middle of the top end of the base, and a zinc spraying mechanism is arranged at the top end of the base between the clamping rotating mechanism and the supporting mechanism. A material fixing mechanism is fixedly installed on the side, away from the clamping rotating mechanism, of the top end of the base. The material fixing mechanism comprises two rotating outer frames which are symmetrically distributed, by arranging the material fixing mechanism, the cast iron pipe is subjected to ball type positioning and convex type positioning, the cast iron pipe can be conveniently pushed and pulled, the cast iron pipe is pushed to be horizontally moved to the supporting bottom ring frame in a positioning mode, positioning feeding is carried out, manual hand holding is not needed, the labor intensity is reduced, and the production efficiency is improved. And the cast iron pipe is located at the bottom, so that the cast iron pipe can be automatically discharged through the opening of the first ring frame and the opening of the second ring frame conveniently, and the cast iron pipe is guided through a guide plate.

Description

Technical Field

[0001] This utility model relates to the field of zinc spraying technology for cast iron pipes, specifically a zinc spraying machine for cast iron pipes. Background Technology

[0002] The zinc spraying machine mainly consists of a frame, clamping and rotating mechanism, lifting mechanism, zinc spraying mechanism, electro-hydraulic control system, and flue gas recovery system. It is primarily used for the protection of cast iron pipes buried in highly corrosive soils, such as swampy soil, muddy soil, sulfate-containing soil, garbage soil, and soil contaminated by drainage.

[0003] CN110201829A discloses a zinc spraying machine for cast iron pipes with a rapid zinc spraying function. The machine includes a zinc spraying chamber with a through hole on one vertical wall and a sliding groove on the side wall near the bottom. This zinc spraying machine for cast iron pipes solves the problem that current methods require fixing the cast iron pipes during painting, but using clamps prevents sufficient zinc spraying at the clamped areas, reducing the quality of the zinc spraying.

[0004] Publication number "CN107879083A" discloses a zinc spraying machine, including a support frame, a feeding mechanism, and a traveling trolley. The feeding mechanism is installed at the bottom of the support frame, and the traveling trolley is installed at the top of the support frame. The feeding mechanism and the traveling trolley are arranged sequentially along the feeding direction. This invention features stable operation, low wear, precise transmission, convenient control, and lower maintenance costs.

[0005] However, existing cast iron pipe zinc spraying machines still have some problems in use: due to the heavy weight of cast iron pipes, external cranes are needed to lift the cast iron pipes for loading and unloading, and manual support is required for positioning. When the cast iron pipes are passed through the zinc spraying mechanism, electro-hydraulic control system and flue gas recovery system, positioning, movement and unloading are all cumbersome and the work efficiency is low. Therefore, we propose a cast iron pipe zinc spraying machine to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a zinc spraying machine for cast iron pipes to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a zinc spraying machine for cast iron pipes, comprising a base, a clamping and rotating mechanism fixedly installed on one side of the top of the base, a support mechanism provided in the middle of the top of the base, a zinc spraying mechanism provided at the top of the base between the clamping and rotating mechanism and the support mechanism, and a material fixing mechanism fixedly installed on the side of the top of the base away from the clamping and rotating mechanism.

[0008] The material fixing mechanism includes two symmetrically distributed rotating outer frames. The rotating outer frames are fixedly installed on the top of the base away from the clamping rotating mechanism. Rotating inner frames are rotatably mounted on the rotating outer frames. Base frames are fixedly installed on the bottom opposite sides of the two rotating inner frames. A first ring frame is fixedly installed on the top of the base frame near the support mechanism. A second ring frame is slidably installed on the top of the base frame away from the support mechanism. A first lifting cylinder is fixedly installed at the middle of the bottom of both the first and second ring frames. A second lifting cylinder is fixedly mounted on both sides of the top of both the first and second ring frames. A first positioning ball is rotatably mounted on the driving end of the first and second lifting cylinders on the first ring frame. A positioning protrusion is fixedly mounted on the driving end of the first and second lifting cylinders on the second ring frame. Guide plates are fixedly installed on the bottom opposite sides of the two rotating outer frames.

[0009] Preferably, the drive ends of the first lifting cylinder and the second lifting cylinder point to the center positions of the first ring frame and the second ring frame, respectively.

[0010] Preferably, toothed rings are fixedly fitted on opposite sides of the rotating inner frame, and drive gears are meshed at the bottom of the toothed rings. A drive shaft is fixedly installed in the middle of the two drive gears, and the drive shaft is rotatably installed at the bottom of the rotating outer frame.

[0011] Preferably, a U-shaped frame is fixedly installed at the bottom of one side end of one of the rotating outer frames, an auxiliary shaft is rotatably installed in the middle of the U-shaped frame, one end of the auxiliary shaft and the end of the drive shaft are coaxially fixedly installed, a driven worm gear is fixedly sleeved on the other end of the auxiliary shaft, a drive worm is meshed with the top of the driven worm gear, and the drive worm is rotatably installed at the side end of the U-shaped frame.

[0012] Preferably, a motor is fixedly installed on the side of the U-shaped frame near the drive worm gear, and the drive end of the motor and the end of the drive worm gear are coaxially fixedly installed.

[0013] Preferably, the support mechanism includes a support bottom ring frame, which is fixedly installed at the top center of the base. Two symmetrically distributed crossbars are vertically installed on the top of the support bottom ring frame. A third lifting cylinder is fixedly installed at the bottom center of the support bottom ring frame. A fourth lifting cylinder is fixedly clamped in the middle of the crossbars. A first cylinder is fixedly installed at the drive end of the third lifting cylinder, and a second cylinder is fixedly installed at the drive end of the fourth lifting cylinder. Second positioning balls are rotatably installed at the opposite ends of the first and second cylinders.

[0014] Preferably, the driving ends of the third and fourth lifting cylinders point to the center of the supporting bottom ring frame.

[0015] Preferably, the center positions of the first ring frame, the second ring frame, and the supporting bottom ring frame are coaxially corresponding to the rotation shaft end position of the clamping rotation mechanism.

[0016] Preferably, the length of the cast iron pipe is limited to the distance between two rotating inner frames.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. By setting a material positioning mechanism, the cast iron pipe is positioned by ball bearing and convex type, which facilitates pushing and pulling the cast iron pipe. The cast iron pipe is pushed to move horizontally to the support bottom ring frame for positioning and feeding without manual assistance. It also facilitates the subsequent rotation of the cast iron pipe so that it is rotated to the bottom, allowing the cast iron pipe to be automatically fed through the openings of the first and second ring frames and guided by the guide plate.

[0019] 2. By setting up a support mechanism, the cast iron pipe is provided with ball bearing positioning support, which improves the stability of the subsequent rotary zinc spraying of the cast iron pipe. Attached Figure Description

[0020] 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.

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

[0022] Figure 2 This is a schematic diagram of the material feeding mechanism in this utility model.

[0023] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0024] Figure 4 This is a schematic diagram of the support mechanism in this utility model.

[0025] In the diagram: 1. Base; 2. Clamping and rotating mechanism; 3. Zinc spraying mechanism; 4. Support mechanism; 5. Material fixing mechanism; 6. Guide plate; 7. Gear ring; 71. Drive gear; 72. Drive shaft; 8. U-shaped frame; 81. Auxiliary shaft; 83. Driven worm gear; 84. Drive worm; 9. Motor; 51. Rotating outer frame; 52. Rotating inner frame; 53. Base frame; 54. First ring frame; 55. Second ring frame; 56. First lifting cylinder; 57. Second lifting cylinder; 58. First positioning ball; 59. Positioning convexity; 41. Supporting bottom ring frame; 42. Cross frame; 43. Third lifting cylinder; 44. Fourth lifting cylinder; 45. First cylinder; 46. Second cylinder; 47. Second positioning ball. Detailed Implementation

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

[0027] Example: Figures 1-4 As shown, this utility model provides a zinc spraying machine for cast iron pipes, including a base 1. A clamping and rotating mechanism 2 is fixedly installed on one side of the top of the base 1. A support mechanism 4 is provided in the middle of the top of the base 1. A zinc spraying mechanism 3 is provided at the top of the base 1 between the clamping and rotating mechanism 2 and the support mechanism 4. A material fixing mechanism 5 is fixedly installed on the side of the top of the base 1 away from the clamping and rotating mechanism 2.

[0028] The material fixing mechanism 5 includes two symmetrically distributed rotating outer frames 51. The rotating outer frames 51 are fixedly installed on the top of the base 1 away from the clamping rotating mechanism 2. A rotating inner frame 52 is rotatably mounted on the rotating outer frame 51. The rotating inner frame 52 can rotate on the corresponding rotating outer frame 51. A base frame 53 is fixedly installed on the bottom of the opposite sides of the two rotating inner frames 52. A first ring frame 54 is fixedly installed on the top of the base frame 53 near the support mechanism 4. A second ring frame 55 is slidably installed on the top of the base frame 53 away from the support mechanism 4. A driving mechanism is provided between the second ring frame 55 and the rotating outer frame 51. Activating the driving mechanism can drive the second ring frame 55 to slide horizontally on the top of the base frame 53. A first lifting cylinder 56 is fixedly installed at the middle of the bottom of the first ring frame 54 and the second ring frame 55. A second lifting cylinder 57 is fixedly mounted on both sides of the top of the first ring frame 54 and the second ring frame 55. The driving ends of the first lifting cylinder 56 and the second lifting cylinder 57 point to the center of the first ring frame 54 and the second ring frame 55, respectively.

[0029] The first lifting cylinder 56 and the second lifting cylinder 57 on the first ring frame 54 are each rotatably equipped with a first positioning ball 58. In use, according to the outer diameter of the cast iron pipe, the first lifting cylinder 56 and the second lifting cylinder 57 on the first ring frame 54 are controlled to drive the corresponding first positioning ball 58 to move towards each other, so that the first positioning ball 58 contacts the outer wall of the cast iron pipe and performs ball-type positioning of the cast iron pipe, which facilitates the rotation of the cast iron pipe. The first lifting cylinder 56 and the second lifting cylinder 57 on the second ring frame 55 are each fixedly equipped with a positioning protrusion 59. According to the outer diameter of the cast iron pipe, the first lifting cylinder 56 and the second lifting cylinder 57 on the second ring frame 55 are controlled to drive the corresponding positioning protrusion 59 to move towards each other, so that the positioning protrusion 59 contacts the outer wall of the cast iron pipe and performs convex positioning of the cast iron pipe, which prevents the cast iron pipe from rotating. The bottom of the opposite sides of the two rotating outer frames 51 are fixedly equipped with guide plates 6 to facilitate subsequent material unloading.

[0030] Gear rings 7 are fixedly fitted on opposite sides of the rotating inner frame 52. Drive gears 71 are meshed with the bottom of the gear rings 7. Drive shafts 72 are fixedly installed in the middle of the two drive gears 71, and are rotatably mounted on the bottom of the rotating outer frame 51. A U-shaped frame 8 is fixedly installed on the bottom side of one of the rotating outer frames 51. An auxiliary shaft 81 is rotatably mounted in the middle of the U-shaped frame 8. One end of the auxiliary shaft 81 is coaxially fixedly installed with the end of the drive shaft 72. A driven worm gear 83 is fixedly fitted on the other end of the auxiliary shaft 81. A drive worm 84 is meshed with the top of the driven worm gear 83, and is rotatably mounted on... A motor 9 is fixedly installed on the side of the U-shaped frame 8 near the drive worm gear 84. The drive end of the motor 9 and the end of the drive worm gear 84 are coaxially fixedly installed. When in use, the motor 9 is turned on to drive the drive worm gear 84 to drive the driven worm wheel 83 to rotate, thereby driving the auxiliary shaft 81 and the drive shaft 72 to rotate, which in turn drives the two drive gears 71 to rotate, thereby driving the gear ring 7 to drive the rotating inner frame 52 to rotate on the corresponding rotating outer frame 51. Through the fixed connection of the base frame 53, the first ring frame 54 and the second ring frame 55 are driven to rotate, driving the cast iron pipe to rotate from the original upper position to the lower position.

[0031] The support mechanism 4 includes a support base ring frame 41, which is fixedly installed at the top center of the base 1. Two symmetrically distributed crossbeams 42 are vertically mounted on the top of the support base ring frame 41. A third lifting cylinder 43 is fixedly installed at the bottom center of the support base ring frame 41. A fourth lifting cylinder 44 is fixedly mounted in the middle of the crossbeams 42. The driving ends of the third and fourth lifting cylinders 43 and 44 point towards the center of the support base ring frame 41. A third lifting cylinder 43 is fixedly mounted on its driving end. The first cylinder 45 and the driving end of the fourth lifting cylinder 44 are fixedly installed with the second cylinder 46. The opposite ends of the first cylinder 45 and the second cylinder 46 are rotatably installed with the second positioning ball 47. In use, according to the outer diameter of the cast iron pipe, the third lifting cylinder 43 and the fourth lifting cylinder 44 are controlled to drive the corresponding first cylinder 45, second cylinder 46 and second positioning ball 47 to move towards each other, so that the second positioning ball 47 contacts the outer wall of the cast iron pipe, and provides ball-type positioning support for the cast iron pipe, thereby improving the stability of the subsequent rotational zinc spraying of the cast iron pipe.

[0032] The center positions of the first ring frame 54, the second ring frame 55 and the supporting bottom ring frame 41 are coaxially corresponding to the position of the rotating shaft end of the clamping rotating mechanism 2.

[0033] The length of the cast iron pipe shall not exceed the distance between two rotating inner frames 52.

[0034] Working principle: In use, with the openings of the first ring frame 54 and the second ring frame 55 facing upwards, the cast iron pipe is lifted using an external lifting mechanism. The cast iron pipe passes through the space between the two rotating inner frames 52, through the openings above the first ring frame 54 and the second ring frame 55, and is positioned between the first ring frame 54 and the second ring frame 55. The length of the cast iron pipe is limited to not exceeding the distance between the two rotating inner frames 52, so as not to affect the placement of the cast iron pipe between the first ring frame 54 and the second ring frame 55. Subsequently, according to the outer diameter of the cast iron pipe, the first lifting cylinder 56 and the second lifting cylinder 57 on the first ring frame 54 are controlled to drive the corresponding first positioning ball 58 to move towards each other, so that the first positioning ball 58 contacts the outer wall of the cast iron pipe, and performs ball-type positioning of the cast iron pipe, which facilitates the rotation of the cast iron pipe.

[0035] According to the outer diameter of the cast iron pipe, control the opening of the first lifting cylinder 56 and the second lifting cylinder 57 on the second ring frame 55 to drive the corresponding positioning protrusion 59 to move towards each other, so that the positioning protrusion 59 contacts the outer wall of the cast iron pipe, and performs convex positioning of the cast iron pipe to prevent the cast iron pipe from rotating.

[0036] Based on the outer diameter of the cast iron pipe, the third lifting cylinder 43 and the fourth lifting cylinder 44 are controlled to drive the corresponding first cylinder 45, second cylinder 46 and second positioning ball 47 to move towards each other, so that the second positioning ball 47 can contact the outer wall of the cast iron pipe.

[0037] At this time, the center positions of the first ring frame 54, the second ring frame 55 and the supporting bottom ring frame 41 are coaxially corresponding to the position of the rotating shaft end of the clamping rotating mechanism 2.

[0038] Subsequently, the drive mechanism is activated to drive the second ring frame 55 to slide horizontally at the top of the base frame 53 toward the support base ring frame 41, pushing the cast iron pipe to move horizontally to the support base ring frame 41 and pass through the support base ring frame 41. The second positioning ball 47 contacts the outer wall of the cast iron pipe to provide ball-type positioning support for the cast iron pipe. Then, it is placed on the clamping and rotating mechanism 2.

[0039] Subsequently, the positioning of the cast iron pipe on the second ring frame 55 was released;

[0040] Subsequently, the clamping and rotating mechanism 2 is activated in conjunction with the zinc spraying mechanism 3 to spray zinc onto the cast iron pipe;

[0041] After the zinc spraying operation is completed, the second ring frame 55 is repositioned on the cast iron pipe. Then, the second ring frame 55 pulls the cast iron pipe away from the support bottom ring frame 41, so that the cast iron pipe is separated from the clamping and rotating mechanism 2 and the support mechanism 4 and placed above the guide plate 6.

[0042] Subsequently, the control motor 9 drives the drive worm gear 84 to drive the driven worm wheel 83 to rotate, thereby driving the auxiliary shaft 81 and drive shaft 72 to rotate, which in turn drives the two drive gears 71 to rotate, thereby driving the gear ring 7 to drive the rotating inner frame 52 to rotate on the corresponding rotating outer frame 51. Since the base frame 53 is fixedly connected to the rotating inner frame 52, the first ring frame 54, and the second ring frame 55, when the rotating inner frame 52 rotates, it simultaneously drives the first ring frame 54 and the second ring frame 55 to rotate together, and drives the cast iron pipe on it to rotate together, so that the cast iron pipe rotates from its original upper position. After turning to the lower position (rotation angle above 90 degrees), the first lifting cylinder 56 and the second lifting cylinder 57 on the first ring frame 54 are activated to drive the corresponding first positioning ball 58 to move in the opposite direction, and the first lifting cylinder 56 and the second lifting cylinder 57 on the second ring frame 55 are activated to drive the corresponding positioning protrusion 59 to move in the opposite direction, so that the positioning protrusion 59 and the outer wall of the cast iron pipe are disengaged. The cast iron pipe automatically rolls onto the guide plate 6 through the openings of the first ring frame 54 and the second ring frame 55, and is automatically fed out along the inclined guide plate 6.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A zinc spraying machine for cast iron pipes, comprising a base (1), characterized in that: A clamping and rotating mechanism (2) is fixedly installed on one side of the top of the base (1), a support mechanism (4) is provided in the middle of the top of the base (1), a zinc spraying mechanism (3) is provided on the top of the base (1) between the clamping and rotating mechanism (2) and the support mechanism (4), and a material fixing mechanism (5) is fixedly installed on the side of the top of the base (1) away from the clamping and rotating mechanism (2). The material fixing mechanism (5) includes two symmetrically distributed rotating outer frames (51). The rotating outer frames (51) are fixedly installed on the top of the base (1) away from the clamping rotating mechanism (2). Rotating inner frames (52) are rotatably clamped on the rotating outer frames (51). Base frames (53) are fixedly installed on the bottom opposite sides of the two rotating inner frames (52). A first ring frame (54) is fixedly installed on the top of the base frame (53) near the support mechanism (4). A second ring frame (55) is slidably installed on the top of the base frame (53) away from the support mechanism (4). The first ring frame (54) and the second ring frame (55) are slidably installed on the top of the base frame (53) away from the support mechanism (4). A first lifting cylinder (56) is fixedly installed at the bottom center of the frame (55). A second lifting cylinder (57) is fixedly installed on both sides of the top of the first ring frame (54) and the second ring frame (55). A first positioning ball (58) is rotatably installed on the driving end of the first lifting cylinder (56) and the second lifting cylinder (57) on the first ring frame (54). A positioning protrusion (59) is fixedly installed on the driving end of the first lifting cylinder (56) and the second lifting cylinder (57) on the second ring frame (55). A guide plate (6) is fixedly installed on the bottom of the opposite sides of the two rotating outer frames (51).

2. The zinc spraying machine for cast iron pipes according to claim 1, characterized in that: The driving ends of the first lifting cylinder (56) and the second lifting cylinder (57) respectively point to the center of the first ring frame (54) and the second ring frame (55).

3. A zinc spraying machine for cast iron pipes according to claim 1, characterized in that: The opposing sides of the rotating inner frame (52) are fixedly fitted with toothed rings (7), and the bottom of the toothed rings (7) are meshed with drive gears (71). The middle of the two drive gears (71) is fixedly installed with drive shafts (72), and the drive shafts (72) are rotatably installed at the bottom of the rotating outer frame (51).

4. A zinc spraying machine for cast iron pipes according to claim 3, characterized in that: A U-shaped frame (8) is fixedly installed at the bottom of one of the rotating outer frames (51). An auxiliary shaft (81) is rotatably installed in the middle of the U-shaped frame (8). One end of the auxiliary shaft (81) and the end of the drive shaft (72) are coaxially fixedly installed. A driven worm gear (83) is fixedly sleeved on the other end of the auxiliary shaft (81). A drive worm (84) is meshed with the top of the driven worm gear (83). The drive worm (84) is rotatably installed on the side of the U-shaped frame (8).

5. A zinc spraying machine for cast iron pipes according to claim 4, characterized in that: A motor (9) is fixedly installed on the side of the U-shaped frame (8) near the drive worm (84), and the drive end of the motor (9) and the end of the drive worm (84) are coaxially fixedly installed.

6. A zinc spraying machine for cast iron pipes according to claim 1, characterized in that: The support mechanism (4) includes a support bottom ring frame (41), which is fixedly installed at the top center of the base (1). Two symmetrically distributed cross frames (42) are vertically installed on the top of the support bottom ring frame (41). A third lifting cylinder (43) is fixedly installed at the bottom center of the support bottom ring frame (41). A fourth lifting cylinder (44) is fixedly mounted in the middle of the cross frame (42). A first cylinder (45) is fixedly installed at the driving end of the third lifting cylinder (43). A second cylinder (46) is fixedly installed at the driving end of the fourth lifting cylinder (44). A second positioning ball (47) is rotatably installed at the opposite ends of the first cylinder (45) and the second cylinder (46).

7. A zinc spraying machine for cast iron pipes according to claim 6, characterized in that: The driving ends of the third lifting cylinder (43) and the fourth lifting cylinder (44) point to the center of the supporting bottom ring frame (41).

8. A zinc spraying machine for cast iron pipes according to claim 6, characterized in that: The center positions of the first ring frame (54), the second ring frame (55) and the supporting bottom ring frame (41) are coaxially corresponding to the rotation shaft end position of the clamping rotation mechanism (2).

Images