Quick assembly and disassembly bottom die for forming connector of two semicircular forming ring piece type concrete products

Abstract

The utility model relates to a quick assembly and disassembly bottom die for forming a connector of a two-piece semicircular forming ring piece type concrete product. The quick assembly and disassembly bottom die comprises a forming ring piece and a bottom support flange, the two forming ring pieces are connected to form an integral circular ring, and forming protrusions are arranged on the inner sides of the forming ring pieces. A connecting base extending towards the outer side of the forming ring piece is arranged at the bottom of the forming ring piece, and a connecting base bolt groove is formed in the connecting base and penetrates through the upper face and the lower face of the connecting base. A bottom support flange bolt groove is formed in the bottom support flange, and the bottom support flange bolt groove corresponds to the connecting seat bolt groove; a screw rod fixing device is arranged at the bottom of the bottom support flange, a screw rod is fixedly connected to the screw rod fixing device, and a first nut is screwed on the screw rod after the screw rod penetrates through a bolt groove of the bottom support flange and a bolt groove of the connecting seat, so that the forming ring piece is fixed with the bottom support flange; according to the utility model, the assembly is rapid, the disassembly and assembly are convenient, the molded appearance of a product is regular, the phenomena of unfilled corners and the like are avoided, the production efficiency is improved, and the finished product qualification rate of concrete products is greatly improved.

Description

Technical Field

[0001] This utility model relates to a quick-assembly and disassembly bottom mold for interface molding of two semi-circular ring-shaped concrete products, belonging to the technical field of quick-assembly and disassembly bottom mold design for vibration molding of concrete drainage pipe core mold. Background Technology

[0002] Concrete and reinforced concrete pipes have unique advantages such as high resistance to external pressure, good durability, long service life, easy manufacturing, low production cost, and low price. They are widely used in urban construction, industrial and mining enterprise construction, and farmland water conservancy construction in my country for laying drainage pipes, achieving good economic and social benefits.

[0003] A core mold vibration pipe-making machine is used in the production of concrete and reinforced concrete pipes. This machine employs a core mold vibration method to produce concrete and reinforced concrete pipes. Its principle is as follows: the core mold vibration pipe-making machine works in conjunction with a core mold, which consists of an inner mold, an outer mold, a bottom mold, and a pressure cap. Inside the core mold vibration pipe-making machine, a vibrator that generates high-frequency vibrations is connected to the inner mold. The outer mold is suspended and mounted on the main machine base. The bottom mold is clamped below the outer mold by a clamping mechanism. As the concrete layer between the inner and outer molds rises, the pre-mixed concrete in the pipe wall vibrates synchronously under the vibration force of the vibrator, causing the aggregate particles such as sand and gravel to vibrate synchronously. This results in maximum compaction of the concrete in a short time, producing concrete drainage pipe products. During molding, the inner mold vibrates, transmitted by the vibrator, and pressure is applied at the top through the pressure cap, further compacting the concrete at the socket. The bottom mold and pressure cap also function as product interface forming devices.

[0004] Because steel-socketed concrete pipe products have a circumferential groove at the spigot end to accommodate a rubber sealing ring, currently, when producing steel-socketed pipe products using core mold vibration molds, to facilitate demolding (i.e., removing the concrete product from the bottom mold after processing), steel rings are circumferentially fixed to the forming ring of the bottom mold with screws. This not only results in inaccurate circumferential height positioning and cumbersome screw installation, but also, because the larger the diameter, the longer the circumference of the steel ring. Even with segmented installation, this requires a large number of screws, is time-consuming, and the steel ring is prone to deformation and twisting after long-term use, causing installation difficulties. During demolding, the outer mold must be removed first, and the concrete product must be cured to a certain strength and fully solidified before the screws fixing the circumferential steel ring can be loosened. The concrete product is then lifted with a crane to remove the bottom mold, and then the steel ring embedded in the product is pried out. This easily leads to chipped corners in the product and does not effectively improve the utilization rate of the base support. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems by providing a quick-assembly and disassembly bottom mold for forming the interface of semi-circular ring-shaped concrete products.

[0006] To achieve the above-mentioned utility model objectives, the technical solution adopted by this utility model is as follows: a quick-assembly and disassembly bottom mold for interface molding of concrete products with two semi-circular forming rings, including forming rings and bottom support flanges; characterized in that: the number of forming rings is 2 pieces, both forming rings are semi-circular, the two forming rings are connected to form an integral ring, and forming protrusions are provided on the inner side of the forming rings.

[0007] The bottom of the formed ring is provided with a connecting seat extending outward from the formed ring. The connecting seat is provided with a connecting seat bolt groove, which runs through the upper and lower surfaces of the connecting seat.

[0008] The bottom flange is provided with a bottom flange bolt groove, which corresponds to the connecting seat bolt groove; the bottom of the bottom flange is provided with a screw fixing device, on which a screw is fixedly connected, and the screw passes through the bottom flange bolt groove and the connecting seat bolt groove and then screws on a first nut. The first nut and the screw fixing device are located on both sides of the forming ring and the bottom flange, so that the forming ring is fixed to the bottom flange.

[0009] Both ends of the forming ring are fixed with joint connecting seats. The joint connecting seats are provided with through holes and bolts. The bolts pass through the joint connecting seats of one forming ring in turn and then pass out from the joint connecting seats of the other corresponding forming ring. After passing out, a second nut is screwed on, so that the two forming rings are fixed together.

[0010] The bottom flange is provided with a lower positioning step, and the forming ring is provided with an upper positioning step. When the forming ring is placed on the bottom flange, the upper positioning step of the forming ring fits against the lower positioning step of the bottom flange. After the screw passes through the bolt groove of the bottom flange and the bolt groove of the connecting seat, the first nut is screwed on, so that the two forming rings are fixed to the bottom flange.

[0011] The forming ring is provided with lifting lugs to facilitate lifting the forming ring.

[0012] The screw fixing device includes a transverse bolt, a lock nut, and a fixing seat. The fixing seat has a through hole and is fitted onto the transverse bolt through the through hole. After the transverse bolt passes through the fixing seat, a lock nut is screwed on it, so that the fixing seat is limited and fixed on the transverse bolt. The screw is fixedly connected to the fixing seat, so that the screw is fixedly connected to the screw fixing device.

[0013] The connecting seat is provided with a positioning pin, which is located on the side of the connecting seat facing the bottom support flange; the bottom support flange is provided with a positioning hole, which corresponds to the positioning pin; the positioning pin on the forming ring is inserted into the positioning hole of the bottom support flange to realize the positioning between the forming ring and the bottom support flange.

[0014] This utility model has a reasonable structure. When using this utility model: the processed concrete product needs to be removed from the bottom mold (once the processed concrete product has reached a certain strength, the spigot forming part can be demolded (conventional structures require steam curing and complete concrete solidification before this can be done). After loosening the outer mold clamping device, lift upwards to remove the outer mold). First, unscrew the first nut from the screw fixing device, then unscrew the second nut from the bolt. Several forming rings can be removed from the bottom support flange. At this time, because the groove at the spigot end of the steel socket concrete pipe product is no longer restricted by the forming protrusions on the forming rings, the concrete product (sigot forming rings) can be removed from the bottom mold. Compared with the previous disassembly structure, this is more reasonable and avoids the phenomenon of missing corners in the product. The original bottom support flange supports the product and continues steam curing until complete solidification. The detached spigot forming rings, together with other bottom support flanges, form a new bottom support and are put back into use in a new round of production, greatly improving the utilization rate of the forming rings.

[0015] In this invention, a lower positioning step is provided on the bottom support flange, and an upper positioning step is provided on the forming ring piece; thus, when the forming ring piece is placed on the bottom support flange, the upper positioning step of the forming ring piece fits against the lower positioning step of the bottom support flange. After the screw passes through the bolt groove of the bottom support flange and the bolt groove of the connecting seat, a first nut is screwed on, so that the two forming ring pieces are fixed to the bottom support flange, which facilitates the positioning of the forming ring piece on the bottom support flange and avoids deviation in the installation position.

[0016] In this invention, the bottom of the forming ring is provided with a connecting seat extending outward from the forming ring. The connecting seat is provided with a positioning pin, which is located on the side of the connecting seat facing the bottom flange. In use, the positioning pin on the forming ring is inserted into the positioning hole of the bottom flange to play a positioning role and prevent the forming ring from being installed in a deviated position on the bottom flange.

[0017] In this invention, the quick-assembly and disassembly bottom mold for concrete product interface molding consists of two parts: an upper molding ring and a lower bottom support flange. The lower end of the molding ring has an upper positioning step that matches the lower positioning step of the bottom support flange, ensuring the diameter of the molding ring when assembled into a complete circle. After the molding ring and the bottom support flange are fixed, they form an integral molding ring. The upper flange of the molding ring is held by the outer mold clamping device in the existing core mold vibration pipe making machine. When demolding the product, first loosen the outer mold clamping device, remove the outer mold, unscrew the first nut from the screw fixing device, and then unscrew the second nut from the bolt. Several molding rings can be removed from the bottom support flange, and the product can be placed on the bottom support flange for curing. One pair of molded rings removed can be installed on another bottom support flange for the next production, greatly improving the utilization rate and thus reducing the input cost.

[0018] This invention enables rapid assembly, convenient disassembly, and produces products with a regular appearance, without any missing corners or other defects. It not only improves production efficiency but also significantly increases the finished product qualification rate of concrete products. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective.

[0021] Figure 3 This is a schematic diagram of the structure of the formed ring piece in this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of this utility model after removing one of the molded ring pieces;

[0023] Figure 5 This is a structural schematic diagram of the bottom flange part in this utility model;

[0024] In the diagram: 1. Forming ring, 2. Connecting seat, 3. Positioning pin, 4. Forming protrusion, 5. Bottom flange, 6. Connecting seat bolt groove, 7. Screw fixing device, 7-1. Horizontal bolt, 7-2. Locking nut, 7-3. Fixing seat, 8. Screw, 9. First nut, 10. Lower positioning step, 11. Upper positioning step, 12. Joint connecting seat, 13. Bolt, 14. Lifting lug, 15. Second nut, 16. Bottom flange bolt groove, 17. Positioning hole. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and descriptions.

[0026] A quick-assembly and disassembly bottom mold for interface molding of concrete products with two semi-circular forming rings includes forming rings 1 and bottom support flanges 5; the number of forming rings 1 is 2 pieces, both of which are semi-circular, and the two forming rings 1 are connected to form an integral ring, and forming protrusions 4 are provided on the inner side of the forming rings 1.

[0027] A connecting seat 2 extending outward from the bottom of the forming ring 1 is provided. The connecting seat 2 is provided with a connecting seat bolt groove 6, which penetrates the upper and lower surfaces of the connecting seat 2.

[0028] A bottom flange bolt groove 16 is provided on the bottom flange 5, which corresponds to the connecting seat bolt groove 6. A screw fixing device 7 is provided at the bottom of the bottom flange 5. A screw 8 is fixedly connected to the screw fixing device 7, and the screw 8 passes through the bottom flange bolt groove 16 and the connecting seat bolt groove 6 and is screwed with a first nut 9. The first nut 9 and the screw fixing device 7 are located on both sides of the forming ring 1 and the bottom flange 5, so that the forming ring 1 and the bottom flange 5 are fixed.

[0029] Both ends of the forming ring 1 are fixed with joint connecting seats 12. The joint connecting seats 12 are provided with through holes and bolts 13. The bolts 13 pass through the joint connecting seats 12 of one forming ring 1 in turn and then pass out from the joint connecting seats 12 of the other corresponding forming ring 1. After passing out, a second nut 15 is screwed on, so that the two forming rings 1 are fixed together.

[0030] Furthermore, a lower positioning step 10 is provided on the bottom flange 2, and an upper positioning step 11 is provided on the forming ring 1; when the forming ring 1 is placed on the bottom flange 5, the upper positioning step 11 of the forming ring 1 fits against the lower positioning step 10 of the bottom flange 5, and the screw 8 passes through the bolt groove 16 of the bottom flange and the bolt groove 6 of the connecting seat and is screwed with the first nut 9, so that the two forming rings 1 are fixed to the bottom flange 5.

[0031] Meanwhile, in order to facilitate the lifting of the formed ring 1, a lifting lug 14 is provided on the formed ring 1.

[0032] Furthermore, the screw fixing device 7 includes a transverse bolt 7-1, a locking nut 7-2, and a fixing seat 7-3. The fixing seat 7-3 has a through hole, and the fixing seat 7-3 is fitted onto the transverse bolt 7-1 through the through hole. The transverse bolt 7-1 passes through the fixing seat 7-3 and is screwed with the locking nut 7-2, so that the fixing seat 7-3 is limited and fixed on the transverse bolt 7-1. The screw 8 is fixedly connected to the fixing seat 7-3, so that the screw 8 is fixedly connected to the screw fixing device 7.

[0033] Furthermore, a positioning pin 3 is provided on the connecting seat 2, and the positioning pin 3 is located on the side of the connecting seat 2 facing the bottom support flange 5; a positioning hole 17 is provided on the bottom support flange 5, and the positioning hole 17 corresponds to the positioning pin 3; the positioning pin 3 on the forming ring 1 is inserted into the positioning hole 17 of the bottom support flange 5 to realize the position positioning between the forming ring 1 and the bottom support flange 5.

Claims

1. A quick-assembly and disassembly bottom mold for interface molding of two semi-circular forming ring-shaped concrete products, comprising forming rings (1) and bottom support flanges (5); characterized in that: The number of the forming ring pieces (1) is 2 pieces. Both forming ring pieces (1) are semi-circular. The two forming ring pieces (1) are connected to form an integral ring. The inner side of the forming ring piece (1) is provided with forming protrusions (4). The bottom of the forming ring (1) is provided with a connecting seat (2) extending outward from the forming ring (1), and the connecting seat (2) is provided with a connecting seat bolt groove (6), which penetrates the upper and lower surfaces of the connecting seat (2). The bottom flange (5) is provided with a bottom flange bolt groove (16), which corresponds to the connecting seat bolt groove (6); the bottom of the bottom flange (5) is provided with a screw fixing device (7), and a screw (8) is fixedly connected to the screw fixing device (7). After the screw (8) passes through the bottom flange bolt groove (16) and the connecting seat bolt groove (6), a first nut (9) is screwed on it. The first nut (9) and the screw fixing device (7) are located on both sides of the forming ring (1) and the bottom flange (5), so that the forming ring (1) is fixed to the bottom flange (5). Both ends of the forming ring (1) are fixed with joint connecting seats (12). The joint connecting seats (12) are provided with through holes and bolts (13). The bolts (13) pass through the joint connecting seats (12) of one forming ring (1) in sequence and then pass out from the joint connecting seats (12) of another corresponding forming ring (1). After passing out, a second nut (15) is screwed on, so that the two forming rings (1) are fixed together.

2. The quick-assembly and disassembly bottom mold for interface molding of two semi-circular ring-shaped concrete products according to claim 1, characterized in that: The bottom flange (5) is provided with a lower positioning step (10), and the forming ring (1) is provided with an upper positioning step (11). When the forming ring (1) is placed on the bottom flange (5), the upper positioning step (11) of the forming ring (1) fits against the lower positioning step (10) of the bottom flange (5). The screw (8) passes through the bolt groove (16) of the bottom flange and the bolt groove (6) of the connecting seat and is screwed with a first nut (9), so that the two forming rings (1) are fixed to the bottom flange (5).

3. The quick-assembly and disassembly bottom mold for interface molding of two semi-circular ring-shaped concrete products according to claim 1, characterized in that: The molding ring (1) is provided with a lifting lug (14) to facilitate lifting the molding ring (1).

4. The quick-assembly and disassembly bottom mold for interface molding of two semi-circular ring-shaped concrete products according to claim 1, characterized in that: The screw fixing device (7) includes a transverse bolt (7-1), a locking nut (7-2), and a fixing seat (7-3). The fixing seat (7-3) has a through hole, and the fixing seat (7-3) is fitted onto the transverse bolt (7-1) through the through hole. The transverse bolt (7-1) passes through the fixing seat (7-3) and is screwed with a locking nut (7-2), so that the fixing seat (7-3) is limited and fixed on the transverse bolt (7-1). The screw (8) is fixedly connected to the fixing seat (7-3), so that the screw (8) is fixedly connected to the screw fixing device (7).

5. The quick-assembly and disassembly bottom mold for interface molding of two semi-circular ring-shaped concrete products according to claim 1, characterized in that: The connecting seat (2) is provided with a positioning pin (3), which is located on the side of the connecting seat (2) facing the bottom flange (5); the bottom flange (5) is provided with a positioning hole (17), which corresponds to the positioning pin (3); the positioning pin (3) on the forming ring (1) is inserted into the positioning hole (17) of the bottom flange (5) to realize the positioning between the forming ring (1) and the bottom flange (5).

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