Single-slit type steel mould demoulding device

Abstract

The utility model relates to the technical field of steel mould demoulding, and provides a single-slit type steel mould demoulding device which comprises an edge plate, the edge plate is fixedly installed on the outer edge of a steel mould plate, demoulding mechanisms are arranged at the two ends of the edge plate, each demoulding mechanism comprises two ejector rods, and the two ejector rods penetrate through the edge plate and are connected with the edge plate in a sliding mode. Transmission pieces for driving the ejector rods to slide are arranged at one ends of the two edge plates; the transmission part comprises a supporting rod, a lever is rotationally installed on the supporting rod through a pin shaft, a connecting base is rotationally installed at one end of the lever through a pin shaft, the connecting base is fixedly connected with one end of the ejector rod, a receding groove is formed in the lever, the pin shaft of the connecting base can slide along the receding groove, and a driving part used for driving the two levers to rotate is arranged between the two levers. According to the utility model, not only can the burden of manually operating the hand wheel be relieved, but also the problem of thread slipping caused by the fact that the thread of the lead screw is damaged by larger reverse stress can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steel mold demoulding, in particular to a single-slit steel mold demoulding device. Background Art

[0002] Steel formwork is a steel formwork used for concrete pouring and molding. It is widely used in construction projects due to its multiple uses and beautiful concrete pouring and molding. After the concrete pouring is completed, the traditional concrete pouring and steel formwork are often adhered together and difficult to separate. The large steel formwork is particularly difficult to remove due to its large area and heavy weight.

[0003] In this regard, the Chinese patent publication number CN202064638U discloses "a demoulding device for a construction template, connected to one side of two connecting ribs of a steel template, characterized in that: the demoulding device includes a steel plate with a thread opening at the center, and a push bolt passing through the thread opening of the steel plate and threadedly connected to the thread opening, the steel plate is fixed to one of the connecting ribs of the steel template, and the connecting rib has a through hole at a position corresponding to the thread opening, and the diameter of the through hole is larger than the outer diameter of the push bolt".

[0004] This patent generates a thrust force between the "formwork steel" and the adhered concrete by rotating the "thrust bolt", thereby separating the "steel formwork" from the concrete component under static conditions; in this structure, the "thrust bolt" will be subjected to a large reverse stress, and the reverse stress will be borne by the thread on the "connecting rib" that is threadedly connected to the "thrust bolt". When the "formwork steel" and the adhered concrete are tightly adhered, the thread on the "connecting rib" will be subjected to a greater reverse stress, which can easily lead to damage to the thread groove of the thread, thereby causing the problem of thread slippage between the "thrust bolt" and the thread, which makes it impossible for the "thrust bolt" to separate the "formwork steel" from the adhered concrete. Utility Model Content

[0005] The utility model provides a single-slit steel mold demoulding device, which solves the problem in the prior art that bolts are prone to thread slippage due to excessive reaction stress.

[0006] The technical scheme of the utility model is as follows: a single-slit steel mold demoulding device, comprising an edge plate, the edge plate is fixedly installed on the outer edge of the steel template, both ends of the edge plate are provided with demoulding mechanisms, the demoulding mechanisms include two push rods, the two push rods both penetrate the edge plate and are slidably connected to the edge plate, and one end of the two edge plates is provided with a transmission member for driving the push rods to slide;

[0007] The transmission member includes a support rod, a lever is rotatably mounted on the support rod via a pin shaft, a connecting seat is rotatably mounted on one end of the lever via a pin shaft, the connecting seat is fixedly connected to one end of the push rod, a yield groove is provided on the lever, the pin shaft of the connecting seat can slide along the yield groove, and a driving member for driving the two levers to rotate is provided between the two levers.

[0008] Preferably, the driving member includes a mounting plate, a plurality of fixing bolts are provided on the outer edge of the mounting plate, the mounting plate is fixedly connected to the edge plate by the fixing bolts, a sleeve is fixedly installed on the outer side of the mounting plate, a screw rod is rotatably installed on the sleeve, a movable seat is threadedly installed on the screw rod, and both ends of the movable seat are respectively hinged to two levers.

[0009] Preferably, a handwheel is fixedly mounted on the end of the screw rod.

[0010] Preferably, the distance between the support rod and the top rod is smaller than the distance between the support rod and the movable seat.

[0011] Preferably, the length of the screw rod is greater than the length of the push rod.

[0012] Preferably, a sealing plate is fixedly mounted on one end of the two push rods away from the corresponding connecting seat, and the sealing plate can be inserted into the side wall of the plate.

[0013] Preferably, a sealing groove matching the sealing plate is provided on the inner wall of the edge plate, and the sealing plate is slidably matched with the corresponding sealing groove.

[0014] Preferably, a sealing ring is provided on the outer edge of the sealing plate.

[0015] The technical effects and advantages of the utility model are as follows: when demoulding, the screw rod is rotated by turning the hand wheel, which can make the movable seat move outward along the axial direction of the screw rod, so that one end of the two levers follows the movable seat to move outward, and the other ends of the two levers will push the corresponding push rods to slide along the inner side of the plate, so that the two push rods are in contact with the concrete component on the inner side of the steel formwork and apply thrust, and the steel formwork can be separated from the concrete component; this process mainly applies thrust to the push rods through the lever principle, which greatly reduces the thread thrust required to be provided between the screw rod and the movable seat, which can not only reduce the burden when manually operating the hand wheel, but also avoid the problem of thread slippage caused by the thread of the screw rod being damaged by large reverse stress. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the demoulding mechanism of the utility model.

[0018] Figure 3 It is a structural schematic diagram of the transmission member of the utility model.

[0019] Figure 4 It is a structural schematic diagram of the driving member of the utility model.

[0020] Figure 5 It is a structural schematic diagram of the top rod of the utility model.

[0021] The accompanying drawings are marked as follows: 1. edge plate; 2. demoulding mechanism; 21. push rod; 211. sealing plate; 212. sealing groove; 22. transmission member; 221. support rod; 222. lever; 223. connecting seat; 224. clearance groove; 23. driving member; 231. mounting plate; 232. fixing bolt; 233. sleeve; 234. screw rod; 235. movable seat; 236. handwheel; 3. steel template. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1 - Figure 3 The utility model provides a single-slit steel mold demoulding device, comprising an edge plate 1, which is fixedly installed on the outer edge of a steel template 3, and demoulding mechanisms 2 are arranged at both ends of the edge plate 1, and the demoulding mechanism 2 comprises two push rods 21, and the two push rods 21 both penetrate the edge plate 1 and are slidably connected with the edge plate 1, and one end of the two edge plates 1 is provided with a transmission member 22 for driving the push rods 21 to slide; the transmission member 22 comprises a support rod 221, and a lever 222 is rotatably installed on the support rod 221 through a pin shaft, and a connecting seat 223 is rotatably installed on one end of the lever 222 through a pin shaft, and the connecting seat 223 is fixedly connected with one end of the push rod 21, and a clearance groove 224 is opened on the lever 222, and the pin shaft of the connecting seat 223 can slide along the clearance groove 224, and a driving member 23 for driving the two levers 222 to rotate is arranged between the two levers 222.

[0024] Reference Figure 4The driving member 23 includes a mounting plate 231, and a plurality of fixing bolts 232 are arranged on the outer edge of the mounting plate 231. The mounting plate 231 is fixedly connected to the edge plate 1 through the fixing bolts 232. A sleeve 233 is fixedly installed on the outer side of the mounting plate 231. A screw rod 234 is rotatably installed on the sleeve 233. A movable seat 235 is threadedly installed on the screw rod 234. The two ends of the movable seat 235 are respectively hinged to the two levers 222, and a hand wheel 236 is fixedly installed on the end of the screw rod 234.

[0025] During demoulding, the screw rod 234 is rotated by turning the hand wheel 236, which can make the movable seat 235 move outward along the axis direction of the screw rod 234, so that one end of the two levers 222 moves outward along the movable seat 235, and the other end of the two levers 222 will push the corresponding push rod 21 to slide along the inner side of the plate 1, so that the two push rods 21 contact the concrete component on the inner side of the steel formwork 3 and apply thrust, so that the steel formwork 3 can be separated from the concrete component; this process mainly applies thrust to the push rod 21 through the lever principle, which greatly reduces the thread thrust required to be provided between the screw rod 234 and the movable seat 235, which can not only reduce the burden of manually operating the hand wheel 236, but also avoid the problem of thread slippage caused by the thread of the screw rod 234 being damaged by large reverse stress.

[0026] Reference Figure 4 , the distance between the support rod 221 and the top rod 21 is smaller than the distance between the support rod 221 and the movable seat 235. Setting the distance between the support rod 221 and the movable seat 235 longer can extend the torque of this part of the lever 222, thereby reducing the thread thrust required to be provided between the screw rod 234 and the movable seat 235.

[0027] Reference Figure 4 , the length of the screw rod 234 is greater than the length of the ejector rod 21. Designing the screw rod 234 to be longer can ensure that the ejector rod 21 has a sufficient ejection length.

[0028] Reference Figure 5 The two push rods 21 are fixedly mounted with sealing plates 211 at one end away from the corresponding connection seat 223. The sealing plates 211 can be inserted into the side wall of the edge plate 1. The inner wall of the edge plate 1 is provided with sealing grooves 212 matching the sealing plates 211. The sealing plates 211 are slidably matched with the corresponding sealing grooves 212. The sealing plates 211 can seal the ends of the push rods 21, so that concrete can be prevented from entering the gap between the push rods 21 and the edge plate 1 during the pouring process to form a solidified layer, thereby ensuring that the push rods 21 can slide normally to achieve demolding during demolding.

[0029] Reference Figure 5 A sealing ring is sleeved on the outer edge of the sealing plate 211. The sealing ring can further improve the sealing performance between the sealing plate 271 and the card slot 272.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A single-slit steel mold demoulding device, comprising an edge plate (1), wherein the edge plate (1) is fixedly mounted on the outer edge of a steel mold plate (3), characterized in that: Both ends of the edge plate (1) are provided with demoulding mechanisms (2), the demoulding mechanisms (2) comprising two push rods (21), the two push rods (21) both pass through the edge plate (1) and are slidably connected to the edge plate (1), and one end of the two edge plates (1) is provided with a transmission member (22) for driving the push rods (21) to slide; The transmission member (22) comprises a support rod (221), a lever (222) is rotatably mounted on the support rod (221) via a pin shaft, a connecting seat (223) is rotatably mounted on one end of the lever (222) via a pin shaft, the connecting seat (223) is fixedly connected to one end of the push rod (21), a clearance groove (224) is provided on the lever (222), the pin shaft of the connecting seat (223) can slide along the clearance groove (224), and a driving member (23) for driving the two levers (222) to rotate is provided between the two levers (222).

2. A single-slit steel mold demoulding device according to claim 1, characterized in that: The driving member (23) comprises a mounting plate (231), a plurality of fixing bolts (232) are arranged on the outer edge of the mounting plate (231), the mounting plate (231) is fixedly connected to the edge plate (1) via the fixing bolts (232), a sleeve (233) is fixedly mounted on the outer side of the mounting plate (231), a screw rod (234) is rotatably mounted on the sleeve (233), a movable seat (235) is threadedly mounted on the screw rod (234), and two ends of the movable seat (235) are respectively hinged to two levers (222).

3. A single-slit steel mold demoulding device according to claim 2, characterized in that: A hand wheel (236) is fixedly mounted on the end of the screw rod (234).

4. A single-slit steel mold demoulding device according to claim 2, characterized in that: The distance between the support rod (221) and the top rod (21) is smaller than the distance between the support rod (221) and the movable seat (235).

5. A single-slit steel mold demoulding device according to claim 3, characterized in that: The length of the screw rod (234) is greater than the length of the push rod (21).

6. A single-slit steel mold demoulding device according to claim 1, characterized in that: A sealing plate (211) is fixedly mounted on one end of the two push rods (21) away from the corresponding connection seat (223), and the sealing plate (211) can be inserted into the side wall of the plate (1).

7. A single-slit steel mold demoulding device according to claim 6, characterized in that: A sealing groove (212) matching the sealing plate (211) is provided on the inner wall of the edge plate (1), and the sealing plate (211) is slidably matched with the corresponding sealing groove (212).

8. A single-slit steel mold demoulding device according to claim 7, characterized in that: A sealing ring is sleeved on the outer edge of the sealing plate (211).

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