A mold closing device for pipe pile production
By introducing a bidirectional screw and sealing structure into the pipe pile mold closing device, the problem of incomplete mold closing was solved, achieving a highly efficient sealing effect and improving the production quality of pipe piles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI JINMEIYA NEW BUILDING MATERIALS CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-26
AI Technical Summary
Existing pipe pile mold closing devices suffer from insufficient precision, wear, and deformation during mold closing, leading to poor sealing and concrete slurry leakage.
The structure employs a bidirectional lead screw and sealing element. The bidirectional lead screw drives the movement of the sealing element, ensuring that the sealing element fits tightly against the mold closing edge. Combined with the design of torsion springs and abutments, it ensures that the sealing element effectively seals the edge after the mold is closed.
It effectively reduces concrete grout leakage and improves the production quality and sealing stability of pipe piles.
Smart Images
Figure CN224275573U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pipe pile production equipment, specifically a pipe pile mold closing device for pipe pile production. Background Technology
[0002] In the field of pipe pile production, the mold closing operation of pipe pile molds is one of the key links determining the quality of pipe pile products. As an important building foundation component, pipe piles are widely used in various construction projects, and their quality is directly related to the safety and stability of buildings. Currently, pipe pile mold closing devices mainly rely on mechanical structures to achieve the positioning and closing action of the upper and lower molds. For example, a pipe pile mold closing device disclosed in a Chinese authorized patent (publication number: CN202322543090.6) includes a base, on which a lower mold support is provided, and the lower mold is fixedly connected to the lower mold support. However, this device still has certain defects in use and needs to be improved.
[0003] Existing mold closing devices rely on the alignment accuracy of the mechanical structure to achieve the fitting of the upper and lower molds. However, the closing edges of the upper and lower molds lack effective sealing measures. During mold closing, due to factors such as mold manufacturing precision, wear after long-term use, and mold deformation, a certain gap often exists between the upper and lower molds. This gap allows concrete slurry to easily leak from the closing edges during pouring, leading to slurry leakage. Utility Model Content
[0004] The purpose of this utility model is to provide a mold closing device for pipe pile production, which solves the problem of leakage after mold closing by sealing the edge of the mold with a bidirectional screw and a sealing element.
[0005] This utility model is achieved through the following technical solution:
[0006] This utility model is a mold closing device for pipe pile production, including a base and a two-way screw rod, with a support installed on the top of the base.
[0007] The base has an internal mounting groove, in which two sleeves slide together. The top of each sleeve is connected to a sliding plate, and the outer surface of each sliding plate is fitted with a seal. The seal has a horizontal washer, a first side washer, and a second side washer. There are two horizontal washers. The first side washer and the second side washer are respectively connected to the ends of the two horizontal washers. The two ends of the bidirectional lead screw are respectively connected to the two side walls of the mounting groove. Each sleeve has a threaded hole, and the two sleeves are threadedly fitted to the two ends of the bidirectional lead screw through the threaded holes.
[0008] Furthermore, a convex pad is installed on the second side pad, and a reserved groove for matching the convex pad is opened at the end of the first side pad.
[0009] Furthermore, arc-shaped grooves are provided on the two transverse pads.
[0010] Furthermore, a lower mold is provided on the top of the support, with two arc-shaped grooves located on both sides of the lower mold.
[0011] Furthermore, through grooves are provided on both sides of the bottom of the support, and a rotating shaft is fitted in the through groove. A vertical plate is sleeved on the rotating shaft, and a stop block is installed on the outer surface of the vertical plate.
[0012] Furthermore, a torsion spring is fitted onto the rotating shaft, with its two ends connected to the outer surface of the vertical plate and the end of the rotating shaft, respectively.
[0013] Furthermore, there are two mounting slots, and a sliding rod is installed in the mounting slot. Two sliding blocks are slidably fitted on the sliding rod, and the two sliding blocks are connected to the bottom end of the corresponding slide plate.
[0014] This utility model has the following beneficial effects:
[0015] This utility model uses a bidirectional screw rod and sealing components to seal the edge of the mold after it is closed. The bidirectional screw rod drives the horizontal and side pads on both sides to move and fit tightly against the edge of the mold. This can actively seal the edge of the mold during the mold closing process, effectively filling the gap between the upper and lower molds, reducing the possibility of concrete slurry leakage, and fundamentally solving the problem of slurry leakage caused by factors such as large gaps in the mold, loose screws, or mold deformation. This significantly improves the production quality of the pipe piles.
[0016] This invention uses a torsion spring and a stop block to press the sealing element tightly. When the sealing element is moved, the vertical plate is rotated to both sides, causing it to rotate along the through groove. At this time, the vertical plate moves out of the relief groove and the torsion spring is compressed. After the sealing element seals the edge after mold closing, the vertical plate is released and driven back into the relief groove by the torsion spring. At this time, the stop block presses the horizontal pad, increasing the sealing performance of the horizontal pad on the edge of the mold closing, thereby increasing the practicality of the device and improving the stability of the seal after mold closing.
[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of the mold clamping device;
[0019] Figure 2 This is a schematic diagram of the internal structure of the base;
[0020] Figure 3 This is a schematic diagram of the sealing element.
[0021] Figure 4 This is a structural diagram of the support and the vertical plate.
[0022] In the diagram: 1. Base; 101. Mounting groove; 102. Slide groove; 103. Slide rod; 104. Slide block; 2. Support; 201. Through groove; 202. Relief groove; 203. Lower mold; 3. Double-acting lead screw; 4. Sleeve; 401. Threaded hole; 5. Slide plate; 6. Seal; 601. Horizontal washer; 602. Arc groove; 603. First side washer; 604. Reserved groove; 605. Second side washer; 606. Convex washer; 7. Rotating shaft; 8. Vertical plate; 9. Torsion spring; 10. Abutment block. Detailed Implementation
[0023] 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.
[0024] Please see Figure 1-4 This utility model provides a technical solution: a pipe pile mold closing device for pipe pile production, including a base 1 and a bidirectional lead screw 3. The base 1 has two mounting grooves 101 inside. A sliding rod 103 is installed in each mounting groove 101, and two sliding seats 104 are slidably fitted on the sliding rod 103. The two sliding seats 104 are connected to the bottom ends of corresponding sliding plates 5. When the two sealing elements 6 move, both sliding seats 104 slide along the sliding rod 103, limiting the movement of the sealing elements 6 and preventing them from shifting. Two sleeves 4 are slidably fitted in the mounting grooves 101, and sliding plates 5 are connected to the top ends of both sleeves 4. A sliding groove 102 is provided on the base 1, and the sliding plates 5 are slidably fitted in the sliding groove 102. Sealing elements 6 are installed on the outer surfaces of both sliding plates 5. Each sealing element 6 has a horizontal washer 601, a first side washer 603, and a second side washer 604. Side pad 605, the second side pad 605 is equipped with a convex pad 606, the end of the first side pad 603 is provided with a reserved groove 604 to match the convex pad 606, the two horizontal pads 601 are provided with arc grooves 602. Through the arc grooves 602, when the horizontal pad 601 moves, the side of the arc groove 602 on the horizontal pad 601 first contacts the edge of the upper mold and the lower mold 203. Then, as it moves continuously, the sealing effect gradually increases, ensuring the sealing effect of the horizontal pad 601 on the edge after mold closing. There are two horizontal pads 601. The first side pad 603 and the second side pad 605 are respectively connected to the ends of the two horizontal pads 601. The two ends of the bidirectional screw 3 are respectively connected to the two side walls of the mounting groove 101. The two sleeves 4 are provided with threaded holes 401. The two sleeves 4 are threadedly engaged with the two ends of the bidirectional screw 3 through the threaded holes 401.
[0025] After the pipe pile mold is closed, the drive source is started to drive the bidirectional lead screw 3 to rotate. Since the two ends of the bidirectional lead screw 3 have threads in opposite directions, when the bidirectional lead screw 3 rotates, it can drive the two sleeves 4 to slide along the mounting groove 101 towards the side closer to the support 2, and drive the two sliding plates 5 to move the two sealing pieces 6 until the horizontal pad 601 is in close contact with the edge of the lower mold 203 and the upper mold after mold closing. At this time, the ends of the first side pad 603 and the second side pad 605 are in contact, and the convex pad 606 is engaged into the reserved groove 604, so that the edge after mold closing is sealed by the arc groove 602 of the two horizontal pads 601, and the end after mold closing is sealed by the combination of the first side pad 603 and the second side pad 605 to avoid side leakage.
[0026] A support 2 is installed on the top of the base 1. A through groove 201 is opened on the bottom of both sides of the support 2. A rotating shaft 7 is fitted in the through groove 201. A vertical plate 8 is sleeved on the rotating shaft 7. A stop block 10 is installed on the outer surface of the vertical plate 8. A torsion spring 9 is sleeved on the rotating shaft 7. The two ends of the torsion spring 9 are respectively connected to the outer surface of the vertical plate 8 and the end of the rotating shaft 7. A lower mold 203 is set on the top of the support 2. Two arc-shaped grooves 602 are located on both sides of the lower mold 203. When the sealing member 6 is moved, the vertical plate 8 is rotated to both sides so that the vertical plate 8 rotates along the through groove 201. At this time, the vertical plate 8 moves out of the relief groove 202 and the torsion spring 9 is compressed. After the edge of the mold is sealed by the sealing member 6, the vertical plate 8 is released and the torsion spring 9 drives the vertical plate 8 back into the relief groove 202. At this time, the stop block 10 presses the horizontal pad 601, increasing the sealing performance of the horizontal pad 601 on the edge of the mold.
[0027] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A mold closing device for pipe pile production, comprising a base (1), characterized in that: A support (2) is installed on the top of the base (1); The base (1) has an installation groove (101) inside, and two sleeves (4) are slidably fitted in the installation groove (101). The top of each of the two sleeves (4) is connected to a sliding plate (5). The outer surface of each of the two sliding plates (5) is fitted with a sealing element (6). The sealing element (6) has a horizontal pad (601), a first side pad (603), and a second side pad (605). There are two horizontal pads (601). The first side pad (603) and the second side pad (605) are respectively connected to the ends of the two horizontal pads (601). A bidirectional lead screw (3) is provided, with its two ends connected to the two side walls of the mounting groove (101). Both sleeves (4) have threaded holes (401) and are threadedly fitted to the two ends of the bidirectional lead screw (3) through the threaded holes (401).
2. The pipe pile mold closing device for pipe pile production according to claim 1, characterized in that, The second side pad (605) is equipped with a convex pad (606), and the end of the first side pad (603) is provided with a reserved groove (604) for matching the convex pad (606).
3. The pipe pile mold closing device for pipe pile production according to claim 2, characterized in that, Arc-shaped grooves (602) are formed on the two transverse pads (601).
4. The pipe pile mold closing device for pipe pile production according to claim 3, characterized in that, The support (2) is provided with a lower mold (203) on its top, and the two arc-shaped grooves (602) are located on both sides of the lower mold (203).
5. A pipe pile mold closing device for pipe pile production according to claim 1, characterized in that, The support (2) has through grooves (201) on both sides of the bottom. A rotating shaft (7) is fitted in the through groove (201). A vertical plate (8) is sleeved on the rotating shaft (7). A stop block (10) is installed on the outer surface of the vertical plate (8).
6. A pipe pile mold closing device for pipe pile production according to claim 5, characterized in that, A torsion spring (9) is fitted on the rotating shaft (7), and the two ends of the torsion spring (9) are respectively connected to the outer surface of the vertical plate (8) and the end of the rotating shaft (7).
7. A pipe pile mold closing device for pipe pile production according to claim 1, characterized in that, There are two mounting slots (101). A slide rod (103) is installed in the mounting slot (101). Two slide blocks (104) are slidably fitted on the slide rod (103). The two slide blocks (104) are connected to the bottom end of the corresponding slide plate (5).