Variable-diameter sizing device
By designing a variable diameter fixed -diameter device, using the regulating mechanism to control the movement of sliding flange, combined with the adjustment gap on the fixed diameter cover, the flexible adjustment of the inner diameter of the fixed diameter case is achieved, solving the existing technology replacement of different size core rods in the existing technology. The tedious problems of fixed diameter sets have improved production efficiency and reduced costs.
Patent Information
- Application Number
- CN202411805998.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-01-24
AI Technical Summary
In the production of existing plastic pipes, when producing pipe products of different pressure grades with the same specification, different sizes of mandrels and sizing sleeves need to be replaced, resulting in high costs, cumbersome replacement, and easy to waste raw materials.
Design a variable diameter sizing device, including a cylindrical sizing sleeve, a base plate, a sliding flange and an adjustment mechanism. The adjustment mechanism controls the forward and backward movement of the sliding flange, and cooperates with the adjustment gap opened on the sizing sleeve to realize the adjustment of the inner diameter of the sizing sleeve.
It realizes flexible adjustment of the inner diameter of the sizing sleeve to meet the production requirements of products of different specifications, reduces the frequency of replacing the mandrel and the sizing sleeve, reduces production costs, and improves production efficiency.
Smart Images
Figure CN119348108A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of plastic pipe forming equipment, and in particular to a sizing device with variable diameter. Background Art
[0002] In current plastic pipe production, when producing pipe products of different pressure levels of the same specification, it is necessary to replace core rods and sizing sleeves of different sizes. Sizing sleeves are usually made of wear-resistant copper, which is costly, cumbersome to stop the machine for replacement, and easily leads to waste of raw materials. Summary of the Invention
[0003] In order to solve the above technical problems, the purpose of this application is to provide a sizing device with variable diameter.
[0004] To achieve the above-mentioned purpose, the present application adopts the following technical solution: a sizing device with variable diameter, comprising: The sizing sleeve is cylindrical and has a plurality of adjustment slots formed thereon. Each of the adjustment slots extends in the front-to-back direction and has an opening at the rear end of the sizing sleeve. The plurality of adjustment slots are evenly distributed in the circumferential direction of the sizing sleeve. A base plate is coaxially sleeved on the front end of the sizing sleeve; A sliding flange is coaxially sleeved on the rear end portion of the sizing sleeve so as to be movable in the front-rear direction; and an adjusting mechanism connected between the base plate and the sliding flange, the adjusting mechanism being used to adjust the distance between the sliding flange and the base plate; Wherein, when the sliding flange approaches the substrate, the inner diameter of the sizing sleeve decreases, and when the sliding flange moves away from the substrate, the inner diameter of the sizing sleeve increases.
[0005] In the above technical solution, it is further preferred that the rear end portion of the sizing sleeve forms an adjusting portion that matches the sliding flange, the adjusting portion is conical, and the outer diameter of the adjusting portion gradually decreases from front to back.
[0006] In the above technical solution, it is further preferred that each of the adjustment gaps extends from front to back in a wave-like shape.
[0007] In the above technical solution, it is further preferred that the adjustment mechanism includes multiple connecting rods and multiple rod sleeves, the number of the connecting rods is consistent with the number of the rod sleeves, the multiple connecting rods are evenly distributed along the circumference of the sizing sleeve, each connecting rod extends in the front and rear directions, the front end of the connecting rod is passed through the base plate, the rear end of the connecting rod is threadedly connected to one of the rod sleeves, the rod sleeve is passed through and installed on the sliding flange, and the rod sleeve is configured to move back and forth along the axis of the connecting rod when the connecting rod rotates around its own axis.
[0008] In the above technical solution, it is further preferred that the adjustment mechanism also includes an adjustment gear and multiple pinions, the number of the pinions is consistent with the number of the connecting rods, the front end of each connecting rod is coaxially connected to one of the pinions, and the adjustment gear is simultaneously engaged with the multiple pinions, and the adjustment gear is rotatably coaxially sleeved on the sizing sleeve.
[0009] In the above technical solution, it is further preferred that it further includes a positioning plate coaxially sleeved on the sizing sleeve, the positioning plate is located between the base plate and the sliding flange, and each of the connecting rods passes through the positioning plate.
[0010] In the above technical solution, it is further preferred that a plurality of connecting bolts are connected between the base plate and the positioning plate, and the plurality of connecting bolts and the plurality of connecting rods are alternately arranged in the circumferential direction of the sizing sleeve.
[0011] In the above technical solution, it is further preferred that it also includes a water ring coaxially sleeved on the front end of the sizing sleeve, the water ring is located in front of the substrate and the adjustment mechanism, and a plurality of water holes are evenly opened in the circumferential direction of the water ring.
[0012] Compared with the prior art, this application achieves the following beneficial effects: The present invention has a simple structure and is easy to operate. The sliding flange arranged on the rear end of the sizing sleeve is controlled to move forward and backward by the adjustment mechanism, and the adjustment gap provided on the sizing sleeve is cooperated with to adjust the inner diameter of the sizing sleeve, thereby meeting the production requirements of products of different specifications, expanding the production range, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 A schematic diagram of a three-dimensional structure of a variable diameter sizing device provided in an embodiment of the present application; Figure 2 for Figure 1 A front view of the sizing device in FIG. Figure 3 For the Figure 2 The cross-sectional view cut along line AA in the figure; Figure 4 for Figure 3 A partial enlarged schematic diagram of point B in the middle; Figure 5 for Figure 1 Side view of the sizing device in.
[0014] Among them: 1. Sizing sleeve; 101. Adjusting gap; 102. Adjusting part; 2. Base plate; 3. Sliding flange; 4. Connecting rod; 5. Rod thread sleeve; 6. Nut; 7. Adjusting gear; 8. Pinion; 9. Positioning plate; 10. Connecting bolt; 11. Water ring; 110. Water hole. DETAILED DESCRIPTION
[0015] In order to describe the technical content, structural features, achieved purposes and effects of the application in detail, the technical solutions in the embodiments of the application will be described below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all of the embodiments. In the following description, for the purpose of explanation, many specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in the case of one or more equivalent arrangements. In addition, various exemplary embodiments may be different, but are not necessarily exclusive. For example, without departing from the inventive concept, the specific shape, structure and characteristics of the exemplary embodiment may be used or implemented in another exemplary embodiment.
[0016] The present application provides a variable diameter sizing device, such as Figure 1 、 2 As shown, the sizing device includes a cylindrical sizing sleeve 1, a base plate 2 coaxially sleeved on the front end of the sizing sleeve 1, a sliding flange 3 coaxially sleeved on the rear end of the sizing sleeve 1, and an adjustment mechanism connected between the base plate 2 and the sliding flange 3. The sliding flange 3 is mounted on the sizing sleeve 1 so as to be movable in the front-to-back direction. When the sliding flange 3 moves forward to approach the base plate 2, the inner diameter of the sizing sleeve 1 decreases. When the sliding flange 3 moves away from the base plate 2, the inner diameter of the sizing sleeve 1 increases. The adjustment mechanism causes the sliding flange 3 to move back and forth, thereby adjusting the inner diameter of the sizing sleeve 1.
[0017] The calibrating sleeve 1 is provided with multiple adjustment slots 101, each extending in the front-to-back direction and opening at the rear end. These slots 101 are evenly distributed around the circumference of the calibrating sleeve 1. In this embodiment, each adjustment slot 101 extends in a wave-like pattern from front to back. The rear end of the calibrating sleeve 1 forms an adjustment portion 102 that mates with the sliding flange 3. This adjustment portion 102 is tapered, and its outer diameter gradually decreases from front to back. When the sliding flange 3 moves forward, the pressure exerted by the sliding flange 3 on the adjustment portion 102 gradually increases, causing it to contract inward. The width of each adjustment slot 101 decreases, thereby reducing the inner diameter of the calibrating sleeve 1. When the sliding flange 3 moves rearward, the pressure exerted by the sliding flange 3 on the adjustment portion 102 decreases, releasing it outward, and the width of each adjustment slot 101 increases, thereby increasing the inner diameter of the calibrating sleeve 1.
[0018] The sizing sleeve 1 is made of wear-resistant copper, so that the sizing sleeve 1 has a certain toughness to adapt to the diameter change and prolong the service life of the sizing sleeve 1.
[0019] like Figure 3-5 As shown, the adjustment mechanism is used to adjust the distance between the sliding flange 3 and the base plate 2, thereby adjusting the inner diameter of the sizing sleeve 1. The adjustment mechanism includes multiple connecting rods 4 and multiple rod sleeves 5. The number of connecting rods 4 is consistent with the number of rod sleeves 5. The multiple connecting rods 4 are evenly distributed along the circumference of the sizing sleeve 1. Each connecting rod 4 extends in the front-to-back direction. The front end of the connecting rod 4 is inserted into the base plate 2, and the rear end of the connecting rod 4 is threadedly connected to a rod sleeve 5. The rod sleeve 5 is inserted into the sliding flange 3 and fixed to the sliding flange 3 by a nut 6. When the connecting rod 4 rotates about its own axis, the rod sleeve 5 threadedly connected to the connecting rod 4 moves back and forth along the axis of the connecting rod 4. The moving rod sleeve 5 drives the sliding flange 3 to move back and forth to adjust the inner diameter of the sizing sleeve 1.
[0020] The adjustment mechanism also includes an adjustment gear 7 and multiple pinions 8. The number of pinions 8 is the same as the number of connecting rods 4. The front end of each connecting rod 4 is coaxially connected to a pinion 8. The adjustment gear 7 is simultaneously engaged with multiple pinions 8 and is rotatably coaxially sleeved on the sizing sleeve 1. When the adjustment gear 7 rotates, each pinion 8 drives the coaxially connected connecting rods 4 to rotate around the axis of the connecting rods 4. The multiple pinions 8 rotate synchronously, causing the sliding flange 3 to move back and forth parallel to the base plate 2 through the drive of the multiple threaded connecting rods 4 and the rod thread sleeves 5.
[0021] The sizing device also includes a positioning plate 9 coaxially sleeved on the sizing sleeve 1, the positioning plate 9 is located between the base plate 2 and the sliding flange 3, and each connecting rod 4 is passed through the positioning plate 9. The base plate 2 and the positioning plate 9 are spaced apart from each other from front to back, and cooperate with each other to keep multiple connecting rods 4 parallel to each other and supported around the sizing sleeve 1, so as to avoid the connecting rods 4 from deviating from the front and rear directions during rotation, thereby ensuring stability during the adjustment process.
[0022] like Figure 1 、 3 As shown in Figures 5 and 5, a plurality of connecting bolts 10 are connected between the base plate 2 and the positioning plate 9. The plurality of connecting bolts 10 and the plurality of connecting rods 4 are alternately arranged in the circumferential direction of the sizing sleeve 1. The plurality of connecting bolts 10 enhance the stability of the positioning plate 9 installed on the sizing sleeve 1.
[0023] The sizing device further comprises a water ring 11 coaxially sleeved on the front end of the sizing sleeve 1 . The water ring 11 is located in front of the base plate 2 and the adjustment mechanism. A plurality of water holes 110 are evenly opened in the circumferential direction of the water ring 11 .
[0024] The present invention has a simple structure and is easy to operate. The sliding flange arranged on the rear end of the sizing sleeve is controlled to move forward and backward by the adjustment mechanism, and the adjustment gap provided on the sizing sleeve is cooperated with to adjust the inner diameter of the sizing sleeve, thereby meeting the production requirements of products of different specifications, expanding the production range, and improving production efficiency.
[0025] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments. The above embodiments and descriptions are only for illustrative purposes. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. The scope of protection claimed in the present application is defined by the appended claims, the description and their equivalents.
Claims
1. A variable diameter sizing device, characterized in that: include: The sizing sleeve is cylindrical, and is provided with a plurality of adjustment slots, each of which extends in the front-rear direction, and has an opening at the rear end of the sizing sleeve, and the plurality of adjustment slots are evenly distributed in the circumferential direction of the sizing sleeve; A base plate, coaxially sleeved at the front end of the sizing sleeve; A sliding flange is coaxially sleeved on the rear end of the sizing sleeve so as to be movable in the front-rear direction; and An adjusting mechanism connected between the base plate and the sliding flange, the adjusting mechanism being used to adjust the distance between the sliding flange and the base plate; Wherein, when the sliding flange approaches the substrate, the inner diameter of the sizing sleeve decreases, and when the sliding flange moves away from the substrate, the inner diameter of the sizing sleeve increases.
2. The sizing device according to claim 1, characterized in that: The rear end of the sizing sleeve forms an adjusting portion matched with the sliding flange, the adjusting portion is conical, and the outer diameter of the adjusting portion gradually decreases from front to back.
3. The sizing device according to claim 1, characterized in that: Each of the adjustment gaps extends from front to back in a wave-like shape.
4. The sizing device according to claim 1, characterized in that: The adjustment mechanism includes multiple connecting rods and multiple connecting rod thread sleeves. The number of the connecting rods is consistent with the number of the connecting rod thread sleeves. The multiple connecting rods are evenly distributed along the circumference of the sizing sleeve. Each connecting rod extends in the front-to-back direction. The front end of the connecting rod is passed through the base plate. The rear end of the connecting rod is threadedly connected to one of the connecting rod thread sleeves. The connecting rod thread sleeve is passed through and installed on the sliding flange. The connecting rod thread sleeve is configured to move back and forth along the axis of the connecting rod when the connecting rod rotates around its own axis.
5. The sizing device according to claim 4, characterized in that: The adjustment mechanism also includes an adjustment gear and multiple pinions, the number of the pinions is consistent with the number of the connecting rods, the front end of each connecting rod is coaxially connected to one of the pinions, the adjustment gear is meshed with the multiple pinions at the same time, and the adjustment gear is rotatably coaxially sleeved on the sizing sleeve.
6. The sizing device according to claim 5, characterized in that: It also includes a positioning plate coaxially sleeved on the sizing sleeve, the positioning plate is located between the base plate and the sliding flange, and each of the connecting rods passes through the positioning plate.
7. The sizing device according to claim 6, characterized in that: A plurality of connecting bolts are also connected between the base plate and the positioning plate, and the plurality of connecting bolts and the plurality of connecting rods are alternately arranged in the circumferential direction of the sizing sleeve.
8. The sizing device according to claim 1, characterized in that: It also includes a water ring coaxially sleeved on the front end of the sizing sleeve, the water ring is located in front of the base plate and the regulating mechanism, and a plurality of water holes are evenly opened in the circumferential direction of the water ring.