Automatic centering device for mold on production line for producing concrete duct pieces

Abstract

The utility model is applicable to the technical field of prefabrication of tunnel concrete segments, and provides an automatic centering device for a mold on a production line of concrete segments, which comprises a left-right limiting structure, a front limiting structure and a rear limiting structure which are respectively used for limiting the left side, the right side, the front side and the rear side of the mold. Through the combined action of the left limiting structure, the right limiting structure, the front limiting structure and the rear limiting structure, automatic centering of the mold on an assembly line is achieved. In this way, the production efficiency is improved, the precise relative position relation between the mold and the robot during operation execution is guaranteed, and therefore the accuracy and stability of operation are improved. And moreover, the device is reasonable in structural design, and all the parts are connected simply and clearly, so that maintenance and operation become easier. Meanwhile, due to the self-weight return design of the front push block, the rear stop block and other components, manual intervention is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel concrete pipe segment prefabrication, in particular to an automatic centering device for a mold on a production line for producing concrete pipe segments. Background Art

[0002] With the advancement of technology and the gradual increase in labor costs, traditional tasks such as mold cleaning, oiling and plastering on concrete pipe segment production lines have gradually been replaced by robots. However, there is a prerequisite for robots to successfully perform these tasks, that is, every mold that moves to a fixed position on the production line must have a precise relative position relationship with the robot. This requirement is crucial to ensuring the accuracy and stability of the robot's operation.

[0003] In existing technologies, precise alignment between the mold and the robot often requires manual positioning and adjustment. This approach is not only time-consuming and labor-intensive, increasing labor costs, but is also susceptible to human influence, leading to inaccurate alignment, which in turn affects the robot's performance and product quality. Furthermore, because the mold has a certain degree of inertia when moving on the assembly line, without an effective centering device, the mold may shift position upon reaching the workstation, further increasing the difficulty and uncertainty of the robot's operation. Therefore, an automatic centering device for molds on an assembly line for producing concrete segments is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic centering device for molds on a production line for concrete pipe segments, aiming to solve the problems raised in the above-mentioned background technology.

[0005] The embodiment of the utility model is realized as follows: an automatic centering device for a mold on a production line for concrete segments includes left and right limiting structures, a front limiting structure, and a rear limiting structure, which are respectively used to limit the left and right, front, and rear sides of the mold;

[0006] The left and right limiting structures include a rigid guide wheel group and a flexible guide wheel group;

[0007] The front limit structure includes:

[0008] Two symmetrically arranged bases;

[0009] A fixing seat 1, wherein the fixing seat 1 is fixedly mounted on the two bases 1; a mounting groove is formed in the fixing seat 1, and a pushing structure is mounted in the mounting groove;

[0010] A first baffle rod, wherein the first baffle rod is fixedly mounted on a first fixing seat;

[0011] A fixing groove, the fixing groove being fixedly mounted on one side of the fixing seat;

[0012] A limit switch, wherein the limit switch is fixedly mounted on the fixing groove;

[0013] a solenoid valve, the solenoid valve being fixedly mounted on the other side of the first fixing seat;

[0014] A front cylinder, the front cylinder is fixedly mounted on a fixing seat 1 and connected to a solenoid valve;

[0015] The rear limiting structure includes:

[0016] Two symmetrically arranged bases;

[0017] A second fixing seat, the second fixing seat being fixedly mounted on the two second bases;

[0018] A second pin shaft, the second pin shaft being fixedly mounted on a second fixing seat;

[0019] A rear stopper, the rear stopper being rotatably mounted on the second pin;

[0020] The third shift lever is fixedly mounted on the second fixing seat.

[0021] Furthermore, the rigid guide wheel assembly includes:

[0022] Several supports located on one side;

[0023] Guide wheel one, each support is rotatably connected with a guide wheel one.

[0024] Furthermore, the flexible guide wheel assembly includes:

[0025] a number of supports located on the other side;

[0026] A mounting plate, each support is fixedly connected to a mounting plate;

[0027] A mounting member, the mounting member being fixedly mounted on the mounting plate;

[0028] a mounting seat, the mounting seat being slidably connected to the mounting piece;

[0029] A spring connecting the mounting seat and the mounting plate, and the spring is sleeved on the mounting piece;

[0030] The guide wheel 2 is rotatably mounted on the mounting seat.

[0031] Furthermore, the pushing structure includes:

[0032] A connecting seat, the end of which is connected to the piston rod of the front cylinder;

[0033] Travel wheels, both sides of the connecting seat are rotatably connected to travel wheels;

[0034] A switch striker, the switch striker being fixedly mounted on the connecting seat;

[0035] A first pin, wherein the first pin is fixedly mounted on the connecting seat;

[0036] A forward push block, the forward push block being rotatably mounted on a pin shaft 1;

[0037] The second baffle rod is fixedly mounted on the connecting seat.

[0038] Furthermore, the front push block and the rear stop block are both composed of a front end portion and a rear end portion, and the angle formed between the front end portion and the rear end portion is an obtuse angle.

[0039] Compared with the prior art, the beneficial effects of the present invention are:

[0040] This automatic centering device for molds used in concrete segment production lines utilizes a combination of left and right, front, and rear limiters to automatically center the molds on the assembly line. This not only improves production efficiency but also ensures the precise relative position of the mold and robot during operation, thereby enhancing operational accuracy and stability. The device's rational structural design and straightforward connections between components facilitate maintenance and operation. Furthermore, the self-weighted return mechanism for components such as the front push block and rear stopper reduces manual intervention and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic diagram of the structure of the automatic centering device for molds on a production line for concrete pipe segments.

[0042] Figure 2 This is a schematic diagram of the structure of the rigid guide wheel group in the automatic centering device of the mold on the production line of concrete pipe segments.

[0043] Figure 3 This is a schematic diagram of the structure of the flexible guide wheel group in the automatic centering device of the mold on the production line of concrete pipe segments.

[0044] Figure 4 This is a schematic diagram of the structure of the front limit structure in the automatic centering device of the mold on the production line of concrete pipe segments.

[0045] Figure 5 This is a schematic diagram of the structure of the pushing structure in the automatic centering device of the mold on the production line of concrete pipe segments.

[0046] Figure 6 This is a schematic diagram of the structure of the rear-positioned limiting structure in the automatic centering device of the mold on the production line of concrete pipe segments.

[0047] In the figure: support 11, guide wheel 12, mounting plate 13, mounting part 14, mounting seat 15, spring 16, guide wheel 2 17, base 1 21, fixing seat 1 22, mounting slot 23, stop rod 1 24, fixing slot 25, limit switch 26, solenoid valve 27, front cylinder 28, connecting seat 31, walking wheel 32, switch collision block 33, pin shaft 1 34, forward push block 35, stop rod 2 36, base 2 41, fixing seat 2 42, pin shaft 2 43, rear stop block 44, stop rod 3 45. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0049] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0050] like Figure 1-6 As shown, an embodiment of the present invention provides an automatic centering device for molds on a production line for concrete pipe segments, including left and right limiting structures, a front limiting structure, and a rear limiting structure, which are respectively used to limit the left and right, front, and rear sides of the mold to achieve automatic centering of the mold so that the robot can perform tasks.

[0051] like Figure 1-3 As shown, as a preferred embodiment of the present utility model, the left and right limiting structures include a rigid guide wheel group and a flexible guide wheel group;

[0052] The rigid guide wheel assembly comprises:

[0053] A plurality of supports 11 located on one side;

[0054] A guide wheel 12 is rotatably connected to each support 11;

[0055] The flexible guide wheel assembly comprises:

[0056] a plurality of supports 11 located on the other side;

[0057] A mounting plate 13 is fixedly connected to each support 11;

[0058] A mounting member 14, wherein the mounting member 14 is fixedly mounted on the mounting plate 13;

[0059] A mounting seat 15 slidably connected to the mounting member 14;

[0060] A spring 16 is connected between the mounting seat 15 and the mounting plate 13 , and the spring 16 is sleeved on the mounting member 14 ;

[0061] The second guide wheel 17 is rotatably mounted on the mounting seat 15 .

[0062] In the embodiment of the present invention, the number of supports 11 is determined according to the length of the mold. Similarly, the number of guide wheels 12 and guide wheels 2 17 is determined according to the length of the mold.

[0063] Working Process: As the mold enters the workstation along the assembly line, guide wheel 2 (17), driven by spring 16, applies a lateral thrust to the mold, forcing it against guide wheel 1 (12). This ensures the mold and robot are aligned in the left-right direction, achieving left-right alignment. Furthermore, because the flexible guide wheel assembly includes spring 16, it prevents complete jamming and extends the life of guide wheels 12 and 17.

[0064] like Figure 4 and Figure 5 As shown in FIG. 1 , as a preferred embodiment of the present invention, the front limit structure includes:

[0065] Two symmetrically arranged bases 21;

[0066] A fixing seat 22, the fixing seat 22 being fixedly mounted on the two bases 21; a mounting groove 23 is defined in the fixing seat 22, and a push structure is mounted in the mounting groove 23;

[0067] A blocking rod 24, wherein the blocking rod 24 is fixedly mounted on a fixing seat 22;

[0068] A fixing groove 25, wherein the fixing groove 25 is fixedly mounted on one side of the fixing seat 1 22;

[0069] A limit switch 26 , the limit switch 26 being fixedly mounted on the fixing slot 25 ;

[0070] Solenoid valve 27, the solenoid valve 27 is fixedly mounted on the other side of the fixing seat 1 22;

[0071] The front cylinder 28 is fixedly mounted on the fixing seat 1 22 and is connected to the solenoid valve 27;

[0072] The propulsion structure comprises:

[0073] A connecting seat 31, the end of which is connected to the piston rod of the front cylinder 28;

[0074] Travel wheels 32, both sides of the connecting seat 31 are rotatably connected to travel wheels 32;

[0075] A switch striker 33 , wherein the switch striker 33 is fixedly mounted on the connecting base 31 ;

[0076] A pin shaft 34, wherein the pin shaft 34 is fixedly mounted on the connecting seat 31;

[0077] A forward push block 35, the forward push block 35 being rotatably mounted on a pin 1 34;

[0078] The second blocking rod 36 is fixedly mounted on the connecting seat 31 .

[0079] like Figure 6 As shown in FIG. 1 , as a preferred embodiment of the present invention, the rear limit structure includes:

[0080] Two symmetrically arranged bases 41;

[0081] A second fixing seat 42, wherein the second fixing seat 42 is fixedly mounted on the two second bases 41;

[0082] A second pin shaft 43, wherein the second pin shaft 43 is fixedly mounted on the second fixing seat 42;

[0083] A rear stopper 44, the rear stopper 44 being rotatably mounted on the second pin 43;

[0084] The third baffle rod 45 is fixedly mounted on the second fixing seat 42 .

[0085] like Figure 4-6 As shown in FIG. 1 , as a preferred embodiment of the present invention, the front push block 35 and the rear stop block 44 are both composed of a front end portion and a rear end portion, and the angle formed between the front end portion and the rear end portion is an obtuse angle.

[0086] In the embodiment of the present utility model, see Figure 4 and Figure 5 The left side is the rear end of the front push block 35, and the right side is the front end of the front push block 35. In a natural state, the front end is tilted, the left wall of the front end is inclined, and the right wall of the front end is vertical.

[0087] See also Figure 6 The left side is the front end of the rear stopper 44, and the right side is the rear end of the rear stopper 44. In its natural state, the front end is tilted, the left wall of the front end is vertical, and the right wall of the front end is inclined. When the mold enters the workstation along the assembly line, the mold first contacts the right inclined wall of the front end, and then presses against the front end, causing the rear stopper 44 to rotate, and then the mold smoothly passes through the rear stopper 44. After the mold passes through the rear stopper 44, the rear stopper 44 rotates back to its original position under its own weight, preparing for the next limit.

[0088] Working process: After the mold advances one station along the assembly line, the assembly line stops, and the mold will continue to advance a certain position due to inertia. The piston rod of the front cylinder 28 extends, so that the connecting seat 31 drives the walking wheel 32 to move in the mounting groove 23. At this time, the front push block 35 and the switch bumper 33 move at the same time. The right straight wall of the front end of the front push block 35 contacts the front crossbeam on the mold chassis and pushes it to move. When the rear crossbeam on the mold chassis hits the left straight wall of the front end of the rear block 44, the switch bumper 33 triggers the limit switch 26, and the piston rod of the front cylinder 28 stops extending. At this time, the guide wheel 12 and the guide wheel 2 17 limit the left and right sides of the mold, and the front push block 35 and the rear stop block 44 limit the front and back sides of the mold. Therefore, the mold is in a locked state, and the robot performs related operations. When the robot completes the relevant work, the solenoid valve 27 works, the piston rod of the front cylinder 28 is retracted, and the front push block 35 moves. Then, under the action of the stop rod 1 24, the front push block 35 rotates until the right straight wall of the front end of the front push block 35 is against the stop rod 2 36. At this time, the front push block 35 will not touch the mold base, and the mold moves forward with the assembly line. After the mold passes through the front push block 35, the front push block 35 rotates back to its original position under the action of its own weight, which is convenient for the next limit work cycle.

[0089] The working principle of this utility model is:

[0090] The automatic centering device for the mold on the production line of concrete pipe segments is used. When the mold enters the work station along the production line, the guide wheel 2 17 can give the mold a lateral thrust under the action of the spring 16, so that the mold is close to the guide wheel 12 to achieve left and right centering. After the mold advances one station along the assembly line, the assembly line stops. The mold will continue to advance for a certain position due to inertia, and the piston rod of the front cylinder 28 will extend, so that the connecting seat 31 drives the walking wheel 32 to move in the mounting groove 23. At this time, the front push block 35 and the switch bumper 33 move at the same time. The right straight wall of the front end of the front push block 35 contacts the front crossbeam on the mold chassis and pushes it to move. When the rear crossbeam on the mold chassis hits the left straight wall of the front end of the rear block 44, the switch bumper 33 triggers the limit switch 26, and the piston rod of the front cylinder 28 stops extending. At this time, the guide wheel 12 and the guide wheel 2 17 limit the left and right sides of the mold, and the front push block 35 and the rear block 44 limit the front and back sides of the mold. Therefore, the mold is in a locked state, and the robot performs related operations. When the robot completes the relevant work, the solenoid valve 27 works, the piston rod of the front cylinder 28 is retracted, and the front push block 35 moves. Then, under the action of the stop rod 1 24, the front push block 35 rotates until the right straight wall of the front end of the front push block 35 is against the stop rod 2 36. At this time, the front push block 35 will not touch the mold base. The mold moves forward with the assembly line. After the mold passes through the front push block 35, the front push block 35 rotates back to its original position under the action of its own weight.

[0091] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. An automatic centering device for molds on a concrete segment production line, characterized in that: It includes left and right limit structures, front limit structure and rear limit structure, which are used to limit the left and right, front and rear sides of the mold respectively; The left and right limiting structures include a rigid guide wheel group and a flexible guide wheel group; The front limit structure includes: Two symmetrically arranged bases; A fixing seat 1, wherein the fixing seat 1 is fixedly mounted on the two bases 1; a mounting groove is formed in the fixing seat 1, and a pushing structure is mounted in the mounting groove; A first baffle rod, wherein the first baffle rod is fixedly mounted on a first fixing seat; A fixing groove, the fixing groove being fixedly mounted on one side of the fixing seat; A limit switch, wherein the limit switch is fixedly mounted on the fixing groove; a solenoid valve, the solenoid valve being fixedly mounted on the other side of the first fixing seat; A front cylinder, the front cylinder is fixedly mounted on a fixing seat 1 and connected to a solenoid valve; The rear limiting structure includes: Two symmetrically arranged bases; A second fixing seat, the second fixing seat being fixedly mounted on the two second bases; A second pin shaft, the second pin shaft being fixedly mounted on a second fixing seat; A rear stopper, the rear stopper being rotatably mounted on the second pin; The third shift lever is fixedly mounted on the second fixing seat.

2. The automatic centering device for molds on a concrete segment production line according to claim 1 is characterized in that: The rigid guide wheel assembly comprises: Several supports located on one side; Guide wheel one, each support is rotatably connected with a guide wheel one.

3. The automatic centering device for molds on a concrete segment production line according to claim 1 is characterized in that: The flexible guide wheel assembly comprises: a number of supports located on the other side; A mounting plate, each support is fixedly connected to a mounting plate; A mounting member, the mounting member being fixedly mounted on the mounting plate; a mounting seat, the mounting seat being slidably connected to the mounting piece; A spring connecting the mounting seat and the mounting plate, and the spring is sleeved on the mounting piece; The guide wheel 2 is rotatably mounted on the mounting seat.

4. The automatic centering device for molds on a concrete segment production line according to claim 1 is characterized in that: The propulsion structure comprises: A connecting seat, the end of which is connected to the piston rod of the front cylinder; Travel wheels, both sides of the connecting seat are rotatably connected to travel wheels; A switch striker, the switch striker being fixedly mounted on the connecting seat; A first pin, wherein the first pin is fixedly mounted on the connecting seat; A forward push block, the forward push block being rotatably mounted on a pin shaft 1; The second baffle rod is fixedly mounted on the connecting seat.

5. The automatic centering device for molds on a concrete segment production line according to claim 4 is characterized in that: The front push block and the rear stop block are both composed of a front end portion and a rear end portion, and the angle formed between the front end portion and the rear end portion is an obtuse angle.

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