Rubber elbow demolding auxiliary jig

Abstract

The utility model relates to the technical field of demolding auxiliary jigs, and provides a rubber elbow demolding auxiliary jig which comprises two jig assemblies, and the two jig assemblies are arranged at the two ends of a rubber elbow in a sleeving mode respectively. The jig assembly comprises a clamping sleeve, a circular truncated cone sleeve is fixedly installed at one end of the clamping sleeve, an R-angle boss is fixedly installed at the end of the circular truncated cone sleeve, and a holding pipe is fixedly installed at the other end of the clamping sleeve. According to the utility model, the rubber elbow can be smoothly separated from the core, operation can be carried out without the help of a clamp or pliers, and the problem of fracture of the rubber elbow is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of demoulding auxiliary jigs, and in particular to a demoulding auxiliary jig for a rubber bent pipe. Background Art

[0002] The rubber tube is a kind of soft tube. Due to its good toughness and bending effect during use, the rubber tube can also be called a rubber elbow. It is made by injecting the rubber raw material into the mold. After cooling in the mold, the rubber raw material solidifies again and forms a rubber elbow. After the injection molding is completed, the molded rubber elbow needs to be demolded from the mold. This process requires a demolding auxiliary fixture.

[0003] After searching, the Chinese patent publication number CN206598424U discloses "a demoulding jig for bent pipe products, comprising a gas generator, a pressure regulator and a demoulding device arranged in sequence and interconnected through a gas pipe, the demoulding device is in a hollow cap shape, the opening of which is adapted to be mounted at the port of the bent pipe product and inserted between the inner wall of the product and the core; the gas enters the gap between the inner wall of the bent pipe product and the core through the demoulding device to separate the bent pipe product and the core".

[0004] During demoulding, this patent mainly uses a "foot-operated air pump" to introduce gas into the "air pipe", so that a gap is blown out at the connection between the inner wall of the opening of the "bend pipe" and the core, and then the "pliers" are put on the port of the "bend pipe" to separate it from the core. Although this method can achieve demoulding, when operating the "pliers", once the clamping force of the "pliers" on the "bend pipe" is too large, it will cause the "bend pipe" to rupture, and the above-mentioned demoulding process is cumbersome and the demoulding efficiency is low. Utility Model Content

[0005] The utility model provides a rubber elbow demoulding auxiliary jig, which solves the problem in the prior art that the elbow is easily broken during operation.

[0006] The technical solution of the utility model is as follows: a rubber bent pipe demoulding auxiliary jig, comprising two jig assemblies, which are respectively sleeved on both ends of the rubber bent pipe; the jig assembly comprises a clamping sleeve, one end of which is fixedly installed with a frustum sleeve, the end of which is fixedly installed with an R-angle boss, and the other end of the clamping sleeve is fixedly installed with a gripping tube.

[0007] Preferably, a plurality of arc grooves are provided on the outer side of the ferrule, and the plurality of arc grooves are evenly distributed around the ferrule.

[0008] Preferably, tensioning members are installed in several of the arc-shaped grooves, and the tensioning members include a sliding rod, which passes through the inner wall of the ferrule and is slidably connected to the ferrule, and an arc-shaped top plate is fixedly installed on one end of the sliding rod, and the arc-shaped top plate can cooperate with the corresponding arc-shaped groove.

[0009] Preferably, a first wedge block is fixedly installed on the other end of the slide rod, the first wedge block is located on the inner side of the sleeve, and a spring is sleeved on the slide rod, one end of the spring is fixedly connected to the first wedge block, and the other end of the spring is fixedly connected to the inner wall of the sleeve.

[0010] Preferably, one end of the arc-shaped top plate is provided with a rounded corner.

[0011] Preferably, a plurality of pressing parts corresponding to the first wedge blocks are installed at one end of the ferrule, and the pressing parts include a screw rod, which passes through the inner wall of the ferrule and is threadedly connected to the ferrule, and a second wedge block is rotatably installed at one end of the screw rod, and the second wedge block is in contact with the first wedge block, and a rotating cap is fixedly installed at the other end of the screw rod, and the rotating cap is located on the outside of the ferrule.

[0012] Preferably, a fixing block is fixedly mounted on the second wedge-shaped block, a penetrating guide rod is slidably mounted on the fixing block, and one end of the guide rod is fixedly connected to the inner wall of the ferrule.

[0013] Preferably, a limit block is fixedly mounted on the other end of the guide rod.

[0014] The technical effects and advantages of the utility model are as follows: when demolding, the operator opens the air pressure valve switch to introduce gas into the rubber elbow, which creates a gap between the inner wall of the rubber elbow and the core, and then inserts the R-angle boss into the port of the rubber elbow, and then continues to insert the sleeve into the rubber elbow so that the sleeve is completely inserted into the rubber elbow. At this time, the arc-shaped top plate can fully open the port of the rubber elbow and keep it tensioned, thereby expanding the gap between the inner wall of the rubber elbow and the core, and finally the sleeve is pulled outward by grasping the grip tube, which can separate the rubber elbow from the core. This process does not require the use of clamps or pliers to operate, effectively avoiding the problem of rubber elbow rupture. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 The structure of the fixture assembly of the utility model is shown in FIG. Figure 1 .

[0017] Figure 3 The structure of the fixture assembly of the utility model is shown in FIG. Figure 2 .

[0018] Figure 4 It is a structural schematic diagram of the tensioning member of the utility model.

[0019] Figure 5 It is a structural schematic diagram of the top pressure piece of the utility model.

[0020] The accompanying drawings are marked as follows: 1. fixture assembly; 11. ferrule; 12. cone sleeve; 13. R-angle boss; 14. grip tube; 15. tensioner; 151. slide rod; 152. arc-shaped top plate; 153. first wedge block; 154. spring; 155. fillet; 16. top pressure piece; 161. screw rod; 162. second wedge block; 163. rotating cap; 164. fixed block; 165. guide rod; 166. limit block; 17. arc groove; 2. rubber elbow. DETAILED DESCRIPTION

[0021] 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.

[0022] Reference Figure 1 - Figure 3 The utility model provides a rubber elbow demoulding auxiliary jig, comprising two jig components 1, the two jig components 1 are respectively sleeved on the two ends of the rubber elbow 2; the jig component 1 comprises a clamping sleeve 11, one end of the clamping sleeve 11 is fixedly installed with a round cone sleeve 12, the end of the round cone sleeve 12 is fixedly installed with an R angle boss 13, and the other end of the clamping sleeve 11 is fixedly installed with a grip tube 14; during demoulding, by inserting the R angle boss 13 into the port of the rubber elbow 2, the R angle boss 13 can be more closely attached to the inner wall of the rubber elbow 2 to increase resistance, so that demoulding is easier;

[0023] Reference Figure 1 - Figure 4 , a plurality of arc grooves 17 are provided on the outside of the ferrule 11, and the plurality of arc grooves 17 are evenly distributed around the ferrule 11; tensioning members 15 are installed in the plurality of arc grooves 17, and the tensioning member 15 includes a slide rod 151, and the slide rod 151 passes through the inner wall of the ferrule 11 and is slidably connected with the ferrule 11, and an arc top plate 152 is fixedly installed at one end of the slide rod 151, and the arc top plate 152 can cooperate with the corresponding arc groove 17; when the ferrule 11 is fully inserted into the rubber elbow 2, the arc top plate 152 will contact the inner wall of the rubber elbow 2, and at this time, the arc top plate 152 can fully open the port of the rubber elbow 2 and keep it tensioned, thereby expanding the gap between the inner wall of the rubber elbow 2 and the core, and then facilitating the separation of the rubber elbow 2 from the core.

[0024] Reference Figure 1 - Figure 4The other end of the slide bar 151 is fixedly mounted with a first wedge block 153, which is located inside the ferrule 11. A spring 154 is sleeved on the slide bar 151, one end of the spring 154 is fixedly connected to the first wedge block 153, and the other end of the spring 154 is fixedly connected to the inner wall of the ferrule 11. When the arc top plate 152 contacts the rubber elbow 2, the arc top plate 152 will be subjected to the pressure of the rubber elbow 2, and the slide bar 151 will slide, so that the spring 154 is stretched to generate elastic force, and then the arc top plate 152 is reversely pressed, so that the arc top plate 152 and the rubber elbow 2 are always kept in close contact.

[0025] Reference Figure 1 - Figure 4 , one end of the arc-shaped top plate 152 is provided with a rounded corner 155. The rounded corner 155 at the end of the arc-shaped top plate 152 can make the arc-shaped top plate 152 smoothly introduced into the inner side of the rubber elbow 2.

[0026] Reference Figure 1 - Figure 5 A plurality of pressing pieces 16 corresponding to the first wedge block 153 are installed at one end of the ferrule 11. The pressing piece 16 includes a screw rod 161. The screw rod 161 passes through the inner wall of the ferrule 11 and is threadedly connected to the ferrule 11. A second wedge block 162 is rotatably installed at one end of the screw rod 161. The second wedge block 162 contacts the first wedge block 153. A rotating cap 163 is fixedly installed at the other end of the screw rod 161. The rotating cap 163 is located on the outside of the ferrule 11.

[0027] Reference Figure 1 - Figure 5 A fixed block 164 is fixedly installed on the second wedge block 162, and a penetrating guide rod 165 is slidably installed on the fixed block 164, one end of the guide rod 165 is fixedly connected to the inner wall of the ferrule 11; the other end of the guide rod 165 is fixedly installed with a limit block 166.

[0028] The working principle of the utility model is as follows: when demoulding, the operator opens the air pressure valve switch to introduce gas into the rubber elbow 2, which creates a gap between the inner wall of the rubber elbow 2 and the core, and then inserts the R-angle boss 13 into the port of the rubber elbow 2, and then continues to insert the rubber elbow 2 so that the ferrule 11 is completely inserted into the rubber elbow 2. At this time, the arc-shaped top plate 152 can completely open the port of the rubber elbow 2 and keep it tight, so that the gap between the inner wall of the rubber elbow 2 and the core is expanded, and finally the ferrule 11 is pulled outward by grasping the grip tube 14, so that the rubber elbow 2 can be separated from the core. This process does not need to be operated with the help of clamps or pliers, which effectively avoids the problem of rupture of the rubber elbow 2.

[0029] After the rubber elbow 2 is demoulded, the screw 161 is rotated by rotating the rotating cap 163 one by one, which makes the second wedge block 162 approach the first wedge block 153. At this time, the first wedge block 153 is moved toward the center of the ferrule 11 by the action of the second wedge block 162, so that the slide bar 151 drives the arc top plate 152 to move, and the arc top plate 152 is stored in the corresponding arc groove 17. At this time, the arc top plate 152 is completely separated from the inner wall of the rubber elbow 2, and the ferrule 11 can be directly pulled out of the rubber elbow 2, thereby avoiding the problem that the ferrule 11 and the rubber elbow 2 are difficult to separate.

[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 rubber elbow demoulding auxiliary jig, comprising two jig components (1), wherein the two jig components (1) are respectively inserted into two ends of a rubber elbow (2); characterized in that: The fixture assembly (1) comprises a ferrule (11), one end of the ferrule (11) is fixedly mounted with a truncated cone sleeve (12), the end of the truncated cone sleeve (12) is fixedly mounted with an R-angle boss (13), and the other end of the ferrule (11) is fixedly mounted with a gripping tube (14).

2. The rubber elbow demoulding auxiliary jig according to claim 1 is characterized in that: A plurality of arc-shaped grooves (17) are formed on the outer side of the ferrule (11), and the plurality of arc-shaped grooves (17) are evenly distributed around the ferrule (11).

3. The rubber elbow demoulding auxiliary jig according to claim 2 is characterized in that: A tensioning member (15) is installed in each of the arc-shaped grooves (17). The tensioning member (15) includes a sliding rod (151). The sliding rod (151) passes through the inner wall of the ferrule (11) and is slidably connected to the ferrule (11). An arc-shaped top plate (152) is fixedly installed at one end of the sliding rod (151). The arc-shaped top plate (152) can cooperate with the corresponding arc-shaped groove (17).

4. The rubber elbow demoulding auxiliary jig according to claim 3 is characterized in that: A first wedge block (153) is fixedly mounted on the other end of the slide rod (151), and the first wedge block (153) is located on the inner side of the sleeve (11). A spring (154) is sleeved on the slide rod (151), and one end of the spring (154) is fixedly connected to the first wedge block (153), and the other end of the spring (154) is fixedly connected to the inner wall of the sleeve (11).

5. The rubber elbow demoulding auxiliary jig according to claim 4 is characterized in that: One end of the arc-shaped top plate (152) is provided with a rounded corner (155).

6. The rubber elbow demoulding auxiliary jig according to claim 5, characterized in that: A plurality of pressing pieces (16) corresponding to the first wedge blocks (153) are installed at one end of the ferrule (11), and the pressing piece (16) includes a screw rod (161), and the screw rod (161) passes through the inner wall of the ferrule (11) and is threadedly connected to the ferrule (11); a second wedge block (162) is rotatably installed at one end of the screw rod (161), and the second wedge block (162) contacts the first wedge block (153); a rotating cap (163) is fixedly installed at the other end of the screw rod (161), and the rotating cap (163) is located on the outside of the ferrule (11).

7. The rubber elbow demoulding auxiliary jig according to claim 6, characterized in that: A fixing block (164) is fixedly mounted on the second wedge block (162), a penetrating guide rod (165) is slidably mounted on the fixing block (164), and one end of the guide rod (165) is fixedly connected to the inner wall of the ferrule (11).

8. The rubber elbow demoulding auxiliary jig according to claim 7, characterized in that: A limiting block (166) is fixedly mounted on the other end of the guide rod (165).

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