Roundness calibration device for thermal insulation pipe production

Abstract

The utility model relates to the technical field of thermal insulation pipe production, in particular to a roundness calibration device for thermal insulation pipe production, which comprises an upper die head and a lower die head, and further comprises a supporting seat, a supporting frame is fixedly connected to the supporting seat, an electric cylinder is mounted on the supporting frame in a penetrating manner, and an adjusting plate is fixedly connected to the output end of the electric cylinder; the replacing mechanism is arranged on the supporting base and the adjusting plate, through cooperation of an electric cylinder, the adjusting plate, an upper die head, a lower die head and the like, the end of the PE outer protection pipe is conveniently clamped, the roundness is conveniently calibrated, and through cooperation of a spring, a lifting plate, a limiting block, a first sliding block, a first sliding groove and the like, the roundness of the PE outer protection pipe is conveniently adjusted. The upper die head or the lower die head can be conveniently and rapidly installed, limited and fixed, a fixing plate, a clamping plate, a threaded shaft, a limiting ring and the like can be conveniently matched, a first sliding block and a control block can be limited and fixed, the device is easy and rapid to operate, workers can conveniently replace the upper die head or the lower die head, and stability and firmness are effectively guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation pipe production technology, specifically a roundness calibration device for thermal insulation pipe production. Background Technology

[0002] In the production process of thermal insulation pipes, a steel pipe needs to be inserted into a PE outer sheath. Then, a plug is used to seal the annular cavity between the steel pipe and the PE outer sheath. Next, foaming material is injected into the annular cavity through an injection hole for foaming. During this process, because the PE outer sheath has relatively poor rigidity, its cross-section is prone to deformation under its own weight, becoming elliptical. This makes it difficult for the steel pipe to be smoothly inserted into the PE outer sheath. Therefore, a specialized roundness calibration device is needed to calibrate the roundness of the PE outer sheath end, improving the insertion efficiency and thus increasing the production efficiency of the thermal insulation pipe.

[0003] A search revealed that Chinese Patent Publication (Announcement) No. CN215242356U discloses a roundness calibration device for the production of thermal insulation pipes. Its general description includes a lower base, a lower die head, an upper die head, an upper base, a guide shaft, a top plate, a linear drive unit, a lower roller, an upper roller, and a controller. The lower die head is fixed to the lower base. The lower die head has a semi-circular notch. During use, the extrusion action of the upper and lower die heads ensures the roundness of the PE outer protective pipe end, facilitating the insertion of the steel pipe, improving pipe insertion efficiency, and thus increasing the production efficiency of thermal insulation pipes. Furthermore, the lower die head, upper die head, and the outer wall of the PE outer protective pipe are circumferentially aligned. Rolling friction can effectively prevent the lower and upper mold heads from scratching the outer wall of the PE outer protective pipe when calibrating the roundness of the PE outer protective pipe end. However, the above device still has some shortcomings. For example, although the device is convenient for installing and replacing the lower and upper mold heads, it is only a sliding connection and is not convenient for stable positioning of the upper and lower mold heads. The stability is poor during use. Moreover, even if multiple bolts are used for positioning and fixing, it is still troublesome and time-consuming to install and replace the upper and lower mold heads, which is not convenient for quick and stable installation. Therefore, we propose a roundness calibration device for the production of thermal insulation pipes. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a roundness calibration device for the production of thermal insulation pipes. This addresses the shortcomings of existing technologies mentioned in the background section. While these devices facilitate the installation and replacement of the lower and upper mold heads, they are merely sliding connections and do not provide stable positioning of the upper and lower mold heads. Consequently, they exhibit poor stability during use. Furthermore, even when multiple bolts are used for positioning and fixing, the installation and replacement of the upper and lower mold heads are still cumbersome and time-consuming, hindering the rapid and stable installation process.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a roundness calibration device for the production of thermal insulation pipes, comprising an upper die head and a lower die head, and further comprising:

[0008] A support base, on which a support frame is fixedly connected, and an electric cylinder is installed through the support frame. An adjustment plate is fixedly connected to the output end of the electric cylinder.

[0009] The replacement mechanism is mounted on a support base and an adjusting plate. The replacement mechanism includes two fixed bases, which are respectively fixedly connected to the support base and the adjusting plate. Each fixed base has a groove and two sliding grooves. A slider is slidably connected within each sliding groove, and a limit groove is provided on each slider. The upper and lower mold heads are respectively fixedly connected to four sliders. A lifting plate is placed within the groove, and two springs are provided between the lifting plate and the groove. Two limit blocks are fixedly connected to the lifting plate, penetrating into the sliding groove and extending into the limit groove. A control block is fixedly connected to the lifting plate for quick and stable installation of the upper and lower mold heads.

[0010] A blocking mechanism is mounted on a fixed base and is used for limiting movement.

[0011] Preferably, the blocking mechanism includes a fixed block and a second sliding groove. The fixed block is fixedly connected to a fixed base, and the second sliding groove is formed on the fixed base. A fixed plate is rotatably connected to the fixed block. A second slider is slidably connected within the second sliding groove. A retaining plate is fixedly connected to the second slider. A threaded shaft is rotatably connected within the second sliding groove. The second slider is threadedly connected to the threaded shaft. The threaded shaft passes through the second sliding groove and is fixedly connected to a turntable to further improve stability.

[0012] Furthermore, a limit ring is fixedly connected to the fixed plate, and the control block is located inside the limit ring.

[0013] Furthermore, a baffle is fixedly connected inside the groove, and a control port is provided on the baffle, with the control block located inside the control port.

[0014] Furthermore, two fixed shafts are fixedly connected within the groove, the lifting plate is slidably connected to the two fixed shafts, and the spring is sleeved on the fixed shafts.

[0015] Based on the aforementioned scheme, a sliding groove three is provided on the support base, and a slider three is slidably connected in the sliding groove three, and the slider three is fixedly connected to the adjustment plate.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a roundness calibration device for the production of thermal insulation pipes, which has the following beneficial effects:

[0018] This roundness calibration device for insulated pipe production, through the cooperation of an electric cylinder, adjusting plate, upper die head, and lower die head, facilitates the clamping of the PE outer protective pipe end and convenient roundness calibration. Through the cooperation of springs, lifting plates, limit blocks, slider one, and slide groove one, it facilitates the quick installation and limiting fixation of the upper or lower die head. It also facilitates the cooperation of fixing plates, clamping plates, threaded shafts, and limiting rings to limit and fix slider one and control blocks. This device is simple and quick to operate, making it convenient for workers to replace the upper or lower die head, effectively ensuring stability and robustness. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present application;

[0020] Figure 2 This is a three-dimensional structural diagram of the mounting base, mounting plate, etc., used in this application.

[0021] Figure 3 This is a three-dimensional structural diagram of the slider, fixed seat, and other components of this application.

[0022] Figure 4 This is a three-dimensional structural diagram of the slider, lifting plate, limit block, etc. of this application.

[0023] In the diagram: 1. Upper die head; 2. Lower die head; 3. Support base; 4. Support frame; 5. Electric cylinder; 6. Adjusting plate; 7. Fixed base; 8. Slider 1; 9. Lifting plate; 10. Spring; 11. Limit block; 12. Control block; 13. Fixed block; 14. Fixed plate; 15. Slider 2; 16. Clamping plate; 17. Threaded shaft; 18. Turntable; 19. Limit ring; 20. Baffle; 21. Fixed shaft; 22. Slider 3. Detailed Implementation

[0024] 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. Example

[0025] Please see Figures 1-4 A roundness calibration device for producing thermal insulation pipes includes an upper die head 1 and a lower die head 2, and further includes:

[0026] Support base 3, support frame 4 is fixedly connected to support base 3, electric cylinder 5 is installed through support frame 4, and lifting plate 9 is fixedly connected to the output end of electric cylinder 5.

[0027] The replacement mechanism is set on the support base 3 and the lifting plate 9. The replacement mechanism includes two fixed bases 7, which are fixedly connected to the support base 3 and the lifting plate 9 respectively. The fixed base 7 has a groove and two slide grooves. A slider 8 is slidably connected in the slide groove. The slider 8 has a limit groove. The upper mold head 1 and the lower mold head 2 are fixedly connected to the four sliders 8 respectively. The lifting plate 9 is placed in the groove. Two springs 10 are set between the lifting plate 9 and the groove. Two limit blocks 11 are fixedly connected to the lifting plate 9. The limit blocks 11 penetrate into the slide groove and extend into the limit groove. A control block 12 is fixedly connected to the lifting plate 9. The electric cylinder 5 is used to adjust the lifting plate 6 and the upper mold head 1. The slider 8 is used to slide and lock in the slide groove. The springs 10 are used to provide elastic force. The limit blocks 11 are used to lock in the limit groove of the slider 8, which facilitates the limit fixation of the upper mold head 1 and the lower mold head 2 and ensures stability during use.

[0028] The shielding mechanism is mounted on the fixed base 7 and includes a fixed block 13 and a second slide groove. The fixed block 13 is fixedly connected to the fixed base 7, and the second slide groove is opened on the fixed base 7. A fixed plate 14 is rotatably connected to the fixed block 13. A second slider 15 is slidably connected in the second slide groove. A clamping plate 16 is fixedly connected to the second slider 15. A threaded shaft 17 is rotatably connected in the second slide groove. The second slider 15 is threadedly connected to the threaded shaft 17. The threaded shaft 17 passes through the second slide groove and is fixedly connected to a turntable 18. The fixed plate 14 is used to shield the two first sliders 8 to further improve the stability of the first sliders 8. The clamping plate 16 is used to clamp the fixed plate 14 for limiting the movement. The threaded shaft 17 is used to drive the second slider 15 and the clamping plate 16 to move.

[0029] A limit ring 19 is fixedly connected to the fixed plate 14. The control block 12 is located inside the limit ring 19 and is used to limit the control block 12 to prevent the control block 12 from moving without human intervention.

[0030] A baffle 20 is fixedly connected inside the groove. A control port is provided on the baffle 20. The control block 12 is located inside the control port and is used to block the flow.

[0031] Two fixed shafts 21 are fixedly connected inside the groove. The lifting plate 9 is slidably connected to the two fixed shafts 21. The spring 10 is sleeved on the fixed shafts 21 to improve the stability of the lifting plate 9 and the spring 10.

[0032] The support base 3 has a sliding groove 3, and a slider 3 22 is slidably connected in the sliding groove 3. The slider 3 22 is fixedly connected to the lifting plate 9 to ensure the stability of the adjusting plate 6 when it is raised or lowered.

[0033] It should be further explained that the electric cylinder 5 in this embodiment is a conventional device known to those skilled in the art and available on the market. The model can be selected or customized according to actual needs. In this patent, we only use it without improving its structure and function. Its setting method, installation method and electrical connection method can be adjusted and operated by those skilled in the art according to the requirements of its instruction manual. It will not be described in detail here. The electric cylinder 5 is equipped with a matching control switch. The installation position of the control switch can be selected according to the actual use requirements to facilitate the operator's operation and control.

[0034] In summary, the working principle and process of the roundness calibration device for insulation pipe production are as follows: First, the device is placed at the desired location. Then, when the upper die head 1 or lower die head 2 needs to be replaced, the operator rotates the threaded shaft 17 via the turntable 18. The threaded shaft 17 moves the slider 15, which in turn moves the clamping plate 16. When the clamping plate 16 no longer limits the fixed plate 14, the fixed plate 14 is rotated. At this point, the operator can slide the lifting plate 9 via the control block 12. The lifting plate 9 compresses the spring 10, causing the limiting block 11 to move, thus moving the limiting block... 11. Move the upper mold head 1 or lower mold head 2 out of the limiting groove. At this point, the upper mold head 1 or lower mold head 2 can be disassembled. This device is simple and quick to operate, easy and stable to install and replace, and highly practical. The upper mold head 1 and lower mold head 2 involved in this solution are authorized technologies disclosed in Chinese Utility Model Patent Publication (Announcement) No. CN215242356U. Their internal structure and working principle are well known to those skilled in the art and are not the innovation of this patent. The innovation of this patent lies in the rapid and stable installation and replacement of the upper mold head 1 and lower mold head 2, thereby improving practicality. Therefore, this patent will not elaborate on their internal structure and working principle.

[0035] The above embodiments merely illustrate specific implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A roundness calibration device for the production of thermal insulation tubes, comprising an upper die head (1) and a lower die head (2), characterized in that, Also include: Support seat (3), the support seat (3) is fixedly connected with support frame (4), the support frame (4) is installed through with electric cylinder (5), the output end of electric cylinder (5) is fixedly connected with adjusting plate (6); Replacement mechanism, the replacement mechanism is arranged on support seat (3) and adjusting plate (6), the replacement mechanism includes two fixed seats (7), two fixed seat (7) is fixedly connected on support seat (3) and adjusting plate (6) respectively, recess and two sliding grooves one are formed in the fixed seat (7), sliding groove one is slidably connected with sliding block one (8), the limiting slot is formed in the sliding block one (8), the upper die head (1) and lower die head (2) are fixedly connected on four sliding blocks one (8) respectively, the recess is placed with lifting plate (9), two springs (10) are arranged between lifting plate (9) and recess, two limiting blocks (11) are fixedly connected on lifting plate (9), the limiting block (11) is inserted into sliding groove one and extends into limiting slot, control block (12) is fixedly connected on lifting plate (9); Shielding mechanism, the shielding mechanism is arranged on fixed seat (7), for limiting.

2. The roundness calibration device for production of thermal insulation tubes according to claim 1, characterized in that: The shielding mechanism includes fixed block (13) and sliding groove two, the fixed block (13) is fixedly connected on fixed seat (7), the sliding groove two is formed in fixed seat (7), the fixed plate (14) is rotatably connected on the fixed block (13), the sliding groove two is slidably connected with sliding block two (15), the clamping plate (16) is fixedly connected on the sliding block two (15), the threaded shaft (17) is rotatably connected in the sliding groove two, the sliding block two (15) is threadedly connected on threaded shaft (17), the threaded shaft (17) is inserted out of sliding groove two and fixedly connected with rotary table (18).

3. The roundness calibration device for production of thermal tubes according to claim 2, characterized in that: The fixed plate (14) is fixedly connected with limiting ring (19), and the control block (12) is located in the limiting ring (19).

4. The roundness calibration device for production of thermal tubes according to claim 3, characterized in that: The baffle (20) is fixedly connected in the recess, the control port is formed in the baffle (20), and the control block (12) is located in the control port.

5. The roundness calibration device for production of thermal tubes according to claim 4, characterized in that: Two fixed shafts (21) are fixedly connected in the recess, and the lifting plate (9) is slidably connected on the two fixed shafts (21), the spring (10) is sleeved on the fixed shaft (21).

6. The roundness calibration device for production of thermal tubes according to claim 5, characterized in that: The sliding groove three is formed in the support seat (3), the sliding block three (22) is slidably connected in the sliding groove three, and the sliding block three (22) is fixedly connected with the adjusting plate (6).

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