Mouth pliers for bent straight connection

Abstract

The utility model relates to a bent and straight mouth clamp which comprises two clamp arms, the clamp arms are provided with jaws, the two clamp arms are symmetrically arranged, the jaws of the two clamp arms are oppositely arranged, limiting blocks are arranged at one ends of the jaws in the circumferential direction of the jaws, one ends of the limiting blocks are embedded in limiting grooves, and the limiting blocks are connected to the clamp arms through connecting assemblies. When the clamp arms clamp the mouth mold, the mouth mold is arranged in the two jaws, and the limiting block is embedded in the limiting groove, so that the mouth mold is limited, and the mouth mold is stably connected to the clamp arms.

Description

Technical Field

[0001] The present application relates to the field of row and column machines, and in particular to a universal bending and straightening pliers. Background Art

[0002] The line machine produces a variety of small-sized molded bottles. Its operating cost is low and its production efficiency is high. It is used by many glass factories. The line machine is equipped with a bottle clamp to transfer the molded bottles formed in the mold out of the mold.

[0003] The Chinese patent with authorization announcement number CN203700155U discloses a three-drop bottle mouth clamp for a row machine, which belongs to the field of bottle making molds. Three semicircular clamp mouths are respectively provided on the two parts of the clamp body. The positions of the clamp mouths on the two parts correspond to each other, and a fixing mechanism is provided on the inner side of the clamp mouth.

[0004] Reference Figure 1 The die 1 includes two first dies 2, which are arranged opposite to each other. The outer circumferential surface of the first die 2 is connected with a first protrusion 3. The circumference of the first protrusion 3 is consistent with the circumference of the first die 2. The two first rings are connected end to end. The outer circumferential surface of the first die 2 is provided with two limiting grooves 4, and the two limiting grooves 4 are provided at both ends of the first die 2 along its circumference.

[0005] Regarding the above-mentioned related technologies, when the clamp body clamps the die, there is a situation where the connection is unstable. Utility Model Content

[0006] In order to improve the stability of the connection between the pliers arm and the die, the present application provides a universal pliers for bending and straightening.

[0007] The present application provides a universal curved and straight jaw pliers adopting the following technical solution:

[0008] A universal bending and straight jaw pliers comprises two jaw arms, each having a jaw opening, the two jaw arms being symmetrically arranged, and the jaw openings of the two jaw arms being arranged opposite to each other, a limit block being provided along one circumferential end of the jaw opening, one end of the limit block being embedded in a limit groove, and the limit block being connected to the jaw arm via a connecting assembly.

[0009] By adopting the above technical solution, when the clamp arm clamps the die, the die is arranged in the two jaws, and the limit block is embedded in the limit groove, thereby limiting the die and making the die stably connected to the clamp arm.

[0010] Optionally, a sliding hole is opened on one side of the clamp arm near the other clamp arm, and the length direction of the sliding hole is consistent with the width direction of the clamp arm, and the connecting assembly includes a connecting rod and a first spring, the length direction of the connecting rod is consistent with the length direction of the sliding hole, one end of the connecting rod is connected to the limit block, and the other end of the connecting rod passes through and is slidably connected to the sliding hole along the length direction of the connecting rod. A mounting ring groove is opened on the inner wall of the sliding hole, and the central axis of the mounting ring groove is collinear with the central axis of the sliding hole. The first spring is arranged in the mounting ring groove, and the first spring is sleeved on the connecting rod, and the length direction of the first spring is consistent with the length direction of the connecting rod. The first spring is connected to the inner wall of the mounting ring groove near one end of the limit block, and the other end of the first spring is connected to the connecting rod. When the limit block contacts the clamp arm, the first spring is squeezed and deformed.

[0011] By adopting the above technical solution, when in use, the first spring is squeezed and deformed. Since the spring is elastic, the spring drives one end of the connecting rod away from the clamp arm, thereby making the limit block press against the inner wall of the limit groove, so that the die is stably connected to the clamp arm.

[0012] Optionally, a connecting sleeve is connected to one end of the connecting rod away from the limit block, and the connecting sleeve is slidably mounted on the connecting rod. The central axis of the connecting sleeve is collinear with the central axis of the connecting rod. The connecting sleeve is provided with a rotating hole, and one end of the connecting rod passes through and is slidably connected to the rotating hole along its length direction, and the connecting sleeve is close to the limit block side for contacting the side wall of the clamp arm, and the connecting sleeve is detachably connected to the connecting rod.

[0013] By adopting the above technical solution, when disassembling the die, the connecting rod is pushed along the length direction of the connecting rod to move the limit block, so that the limit block is away from the clamp arm, thereby facilitating the disassembly of the die. A connecting sleeve is added to facilitate the operator to push the connecting rod. The lower limit block is prone to wear after long-term use. The connecting sleeve can be detachably connected to the connecting rod to facilitate the replacement of the limit block.

[0014] Optionally, the connecting sleeve is detachably connected to the connecting rod via a pin.

[0015] By adopting the above technical solution, the connecting sleeve is detachably connected to the connecting rod through the pin, and the connecting sleeve and the connecting rod are easy to disassemble, thereby facilitating the replacement of the limit block.

[0016] Optionally, a stop block is connected to the other end of the jaw along its circumference and away from the limit block, and the stop block is embedded in the limit groove.

[0017] By adopting the above technical solution, when the clamp arm clamps the die, the stop block and the limit block are respectively embedded in the two limit grooves, thereby improving the stability of the connection between the clamp arm and the die.

[0018] Optionally, a groove is provided on the inner wall of the jaws, the circumference of the groove is consistent with the circumference of the jaws, a spring sheet is connected to the groove, the spring sheet is arranged in an arc shape, and the concave arc surface of the spring sheet is arranged to face away from the jaw arm.

[0019] By adopting the above technical solution, a spring sheet is added, which has a certain elasticity. When clamping the die, the peripheral side of the die contacts the spring sheet, so that the spring sheet drives the two first dies to press against each other, which is conducive to the closing of the two first dies.

[0020] Optionally, mounting grooves are provided on inner walls at both ends of the groove along its circumferential direction, and the spring sheet is movably embedded in the two mounting grooves along both ends of the groove along its circumferential direction.

[0021] By adopting the above technical solution, the elasticity of the spring sheet weakens after long-term use, which can easily affect the stability of the clamping of the die by the jaws. The two ends of the spring sheet are movably embedded in the two mounting grooves, and the spring sheet is easy to disassemble and assemble, thereby facilitating the replacement of the spring sheet.

[0022] Optionally, one end of the connecting rod is rotatably connected to the rotating hole, and a movable groove is opened on the inner wall of the rotating hole, and the length direction of the movable groove is consistent with the radial direction of the connecting rod. A second spring is connected to the movable groove, and the length direction of the second spring is consistent with the length direction of the movable groove. The second spring is connected to the inner wall of the movable groove along one end of its length direction, and the other end of the second spring is connected to a locking block, and the locking block is slidably connected to the movable groove along the length direction of the movable groove. A locking groove is opened on the circumference of the connecting rod, and the locking block is embedded in the locking groove.

[0023] By adopting the above technical solution, when installing the connecting sleeve, the connecting sleeve is arranged on the connecting rod, the locking block is embedded in the movable groove, and the second spring is deformed by compression. When the locking block approaches the locking groove, the second spring restores its shape and pushes the locking block to move radially along the connecting rod, and drives the locking block to be embedded in the locking groove, so that the connecting sleeve is stably connected to the connecting rod.

[0024] Optionally, the locking block is provided with a guide surface along the circumference of the connecting rod, and the guide surface facilitates the locking block to be embedded in or away from the locking groove.

[0025] By adopting the above technical solution, a guide surface is added to facilitate the locking block to be inserted into or away from the locking groove.

[0026] Optionally, one end of the stopper passes through the inner wall of the groove and is connected to a fixing plate, and the fixing plate is detachably connected to the clamp arm by bolts.

[0027] By adopting the above technical solution, the lower stopper is prone to wear after long-term use. The stopper can be taken out by disassembling the fixing plate, thereby facilitating the replacement of the stopper.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. When the clamp arm clamps the die, the die is placed in the two jaws, and the limit block is embedded in the limit groove to limit the position of the die, so that the die is stably connected to the clamp arm;

[0030] 2. The connecting sleeve is detachably connected to the connecting rod through a pin. The connecting sleeve and the connecting rod are easy to disassemble, so as to facilitate the replacement of the limit block;

[0031] 3. Add a spring sheet, which has a certain elasticity. When clamping the die, the periphery of the die contacts the spring sheet, so that the spring sheet drives the two first dies to press against each other, which is conducive to the closing of the two first dies. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional structural diagram of a die in the prior art.

[0033] Figure 2 This is a three-dimensional structural diagram of Example 1.

[0034] Figure 3 It is a cross-sectional view of Example 1, used to show the connection components.

[0035] Figure 4 It is a cross-sectional view of Example 2, used to show the connecting sleeve and the connecting rod.

[0036] Figure 5 It is a cross-sectional view of embodiment 2, used to show the locking block and the second spring.

[0037] Explanation of the accompanying drawings: 1. Mouth die; 2. First die; 3. First protrusion; 4. Limiting groove; 100. Clamp arm; 200. Arm plate; 210. Jaw; 211. Groove; 212. Mounting groove; 220. Limiting block; 230. Spring sheet; 240. Sliding hole; 241. Mounting ring groove; 250. Stop block; 251. Fixed plate; 300. Connecting seat; 310. Connecting groove; 400. Connecting assembly; 410. Connecting rod; 411. Locking groove; 420. First spring; 430. Connecting sleeve; 431. Rotating hole; 432. Moving groove; 433. Second spring; 434. Locking block. DETAILED DESCRIPTION

[0038] The following is combined with Figure 2-5 This application is described in further detail.

[0039] The embodiment of the present application discloses a universal curved and straight jaw pliers. Figure 2 and Figure 3A universal curved and straight jaw pliers includes two jaw arms 100, each having two jaws 210, one of which is open on one side. The two jaws 210 are spaced apart along the length of the jaw arms 100, and the two jaw arms 100 are symmetrically arranged, with the openings of the jaws 210 of the two jaw arms 100 facing each other. The jaw arms 100 are connected to two limit blocks 220, each of which is located between the two jaws 210. The limit blocks 220 correspond one to one with the jaws 210. The limit blocks 220 are located at one end of the jaws 210 along the circumference of the jaws 210, and the length of the limit blocks 220 is consistent with the length of the jaw arms 100. One end of the limit block 220 is connected to the jaw arm 100 along the length, and the other end of the limit block 220 extends into the jaws 210 along the length and is configured to be inserted into the limit groove 4. The limit blocks 220 are made of rubber.

[0040] When the clamp arm 100 clamps the die 1 , the limiting block 220 is embedded in the limiting groove 4 to limit the die 1 so that the die 1 is stably connected to the jaw 210 .

[0041] Reference Figure 2 and Figure 3 The clamp arm 100 includes a connecting base 300 and an arm plate 200. The connecting base 300 is connected to one end of the wall plate, and the length direction of the connecting base 300 is perpendicular to the length direction of the arm plate 200. A connecting groove 310 is formed on the side of the connecting base 300 away from the wall plate. The length direction of the connecting groove 310 is consistent with the length direction of the connecting base 300, and the connecting groove 310 is a T-shaped groove.

[0042] Reference Figure 2 and Figure 3 The inner wall of the jaw 210 is provided with a groove 211. The groove 211 is an arc-shaped groove, and its circumference is aligned with the circumference of the jaw 210. Mounting grooves 212 are provided on the inner wall at both ends of the circumference of the groove 211. The length of the mounting groove 212 is aligned with the thickness of the arm plate 200, and the mounting groove 212 is open at both ends along its length. A spring piece 230 is connected to the groove 211. The spring piece 230 is arranged in an arc shape, with the concave surface of the spring piece 230 facing away from the clamp arm 100. The two ends of the spring piece 230 are bent and embedded in the mounting groove 212, and the two ends of the spring piece 230 are movably embedded in the two mounting grooves 212.

[0043] A spring sheet 230 is additionally provided to force the two first dies 2 to press against each other, thereby facilitating the closing of the die 1 .

[0044] Reference Figure 2 and Figure 3A sliding hole 240 is formed on one side of each arm plate 200 adjacent to the other arm plate 200. The length of the sliding hole 240 is aligned with the width of the caliper arm 100. Each of the limit blocks 220 is connected to a connecting assembly 400. The connecting assembly 400 includes a connecting rod 410 connected to the sliding hole 240 and a first spring 420. The length of the connecting rod 410 is aligned with the width of the arm plate 200. One end of the connecting rod 410 is connected to the limit block 220 along its length, and the other end of the connecting rod 410 passes through the sliding hole 240 along its length and is slidably connected.

[0045] Reference Figure 2 and Figure 3 The inner wall of the sliding hole 240 defines a mounting annular groove 241. The central axis of the mounting annular groove 241 is collinear with the central axis of the sliding hole 240. The mounting annular groove 241 is open along its length and at the end away from the stop block 220. A connecting sleeve 430 is connected to the end of the connecting rod 410 away from the stop block 220. The connecting sleeve 430 is slidably mounted on the connecting rod 410. The central axis of the connecting sleeve 430 is collinear with the central axis of the connecting rod 410. The connecting sleeve 430 defines a rotation hole 431. The end of the connecting rod 410 away from the stop block 220 extends through the connecting sleeve 430 along its length. The connecting sleeve 430 is detachably connected to the connecting rod 410 via a pin, which passes through the connecting sleeve 430 and the connecting rod 410 in a radial direction of the connecting rod 410.

[0046] Reference Figure 2 and Figure 3 The first spring 420 is sleeved on the connecting rod 410, and the first spring 420 is arranged in the mounting ring groove 241. The length direction of the first spring 420 is consistent with the length direction of the connecting rod 410. One end of the first spring 420 is connected to the inner wall of the mounting ring groove 241 along its length direction, and the other end of the first spring 420 contacts one end of the connecting sleeve 430 close to the limit block 220. When the limit block 220 contacts one side of the arm plate 200, the first spring 420 is squeezed and deformed.

[0047] When in use, the spring is squeezed and deformed, so that the limit block 220 is pressed tightly against the limit groove 4. When the die 1 is disassembled, the connecting rod 410 is moved to make the limit block 220 away from the arm plate 200, so as to facilitate the disassembly of the die 1.

[0048] Reference Figure 2 and Figure 3 A stopper 250 is connected to the other end of the jaw 210, away from the stopper 220, along its circumference. The length of the stopper 250 is aligned with the radial direction of the jaw 210. One end of the stopper 250 is connected to the inner wall of the groove 211 along its length, and the other end of the stopper 250 is embedded in the stopper groove 4. The stopper 250 is made of rubber. The addition of the stopper 250 improves the stability of the connection between the die 1 and the arm plate 200.

[0049] The implementation principle of Example 1 of the present application is: when clamping the die 1, the die 1 is arranged in the jaws 210, and the two first dies 2 are in contact with the two spring sheets 230 respectively and squeeze the spring sheets 230. The spring sheets 230 are elastic, so that the spring sheets 230 drive the two first dies 2 to press against each other. The limit blocks 220 and the stop blocks 250 are respectively embedded in the limit grooves 4 on both sides of the die 1, so that the die 1 is stably connected to the jaws 210, thereby improving the stability of the connection between the die 1 and the arm plate 200.

[0050] Example 2

[0051] The difference between this embodiment and the embodiment is that:

[0052] Reference Figure 2 and Figure 4 One end of the connecting rod 410 is rotatably connected to the rotating hole 431. A movable groove 432 is defined on the inner wall of the rotating hole 431. The length of the movable groove 432 is aligned with the radial direction of the connecting rod 410. A second spring 433 is connected to the movable groove 432. The length of the second spring 433 is aligned with the length of the movable groove 432. One end of the second spring 433 is connected to the inner wall of the movable groove 432 along its length. The other end of the second spring 433 is connected to a locking block 434. The locking block 434 is slidably connected to the movable groove 432 along its length. A locking groove 411 is defined on the circumference of the connecting rod 410 for the locking block 434 to be inserted into. The depth of the locking groove 411 is aligned with the radial direction of the connecting rod 410.

[0053] Reference Figure 4 and Figure 5 The locking block 434 is provided with guide surfaces along the circumference of the connecting rod 410. The guide surfaces are provided at the end of the locking block 434 away from the second spring 433. The guide surfaces are inclined, and the two guide surfaces are close to each other at the end away from the second spring 433. When disassembling the connecting sleeve 430, rotate the connecting sleeve 430 so that the locking block 434 is embedded in the movable groove 432.

[0054] Reference Figure 2 and Figure 4 One end of the stopper 250 passes through the inner wall of the groove 211 and slides along its length to connect to the groove 211. The end of the stopper 250 away from the jaw 210 is connected to a fixing plate 251. The fixing plate 251 is detachably connected to the arm plate 200 by bolts. The bolts pass through the fixing plate 251 and are threadedly connected to the arm plate 200. The stopper 250 is detachably connected to the arm plate 200, so that the stopper 250 is easily replaced.

[0055] The working principle of Example 2 of the present application is as follows: after long-term use, the limit block 220 and the stop block 250 are prone to wear. When replacing the limit block 220, the connecting sleeve 430 is rotated, and the locking block 434 is guided by the guide surface and inserted into the movable groove 432, thereby facilitating the removal of the connecting sleeve 430 from the connecting rod 410, thereby facilitating the separation of the limit block 220 from the arm plate 200 and facilitating the replacement of the limit block 220. When replacing the stop block 250, the bolts are unscrewed, thereby facilitating the movement of the fixing plate 251 and the stop block 250 along the length direction of the stop block 250 and away from the caliper arm 100, thereby facilitating the replacement of the stop block 250.

[0056] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A universal bending and straight jaw pliers, comprising two pliers arms (100), each of the pliers arms (100) being provided with a jaw opening (210), the two pliers arms (100) being symmetrically arranged, and the jaw openings (210) of the two pliers arms (100) being arranged opposite to each other, characterized in that: The jaw (210) is provided with a limit block (220) along one circumferential end thereof, one end of the limit block (220) is embedded in the limit groove (4), and the limit block (220) is connected to the jaw arm (100) via a connecting assembly (400).

2. The universal curved and straight jaw pliers according to claim 1, characterized in that: The caliper arm (100) is provided with a sliding hole (240) on one side close to the other caliper arm (100), and the length direction of the sliding hole (240) is consistent with the width direction of the caliper arm (100). The connecting assembly (400) comprises a connecting rod (410) and a first spring (420), and the length direction of the connecting rod (410) is consistent with the length direction of the sliding hole (240). One end of the connecting rod (410) is connected to the limit block (220), and the other end of the connecting rod (410) passes through the sliding hole (240) along the length direction of the connecting rod (410) and is slidably connected to the sliding hole (240). The inner wall of the sliding hole (240) is provided with a mounting ring groove (241). The central axis of the mounting ring groove (241) is colinear with the central axis of the sliding hole (240); the first spring (420) is arranged in the mounting ring groove (241); the first spring (420) is sleeved on the connecting rod (410); the length direction of the first spring (420) is consistent with the length direction of the connecting rod (410); one end of the first spring (420) close to the limit block (220) is connected to the inner wall of the mounting ring groove (241); the other end of the first spring (420) is connected to the connecting rod (410); when the limit block (220) contacts the clamp arm (100), the first spring (420) is squeezed and deformed.

3. The universal curved and straight jaw pliers according to claim 2, characterized in that: The connecting rod (410) is connected to a connecting sleeve (430) at one end away from the limit block (220), and the connecting sleeve (430) is slidably sleeved on the connecting rod (410). The central axis of the connecting sleeve (430) is collinear with the central axis of the connecting rod (410). The connecting sleeve (430) is provided with a rotation hole (431). One end of the connecting rod (410) passes through the rotation hole (431) along its length direction and is slidably connected to the rotation hole (431). The side of the connecting sleeve (430) close to the limit block (220) is used to contact the side wall of the clamp arm (100). The connecting sleeve (430) is detachably connected to the connecting rod (410).

4. The universal curved and straight jaw pliers according to claim 3, characterized in that: The connecting sleeve (430) is detachably connected to the connecting rod (410) via a pin.

5. The universal curved and straight jaw pliers according to claim 1, characterized in that: The jaw (210) is connected to a stopper (250) along its circumference and at the other end away from the limit block (220), and the stopper (250) is embedded in the limit groove (4).

6. The universal curved and straight jaw pliers according to claim 1, characterized in that: A groove (211) is formed on the inner wall of the jaws (210), the circumference of the groove (211) being consistent with the circumference of the jaws (210), a spring sheet (230) being connected to the groove (211), the spring sheet (230) being arranged in an arc shape, and the concave arc surface of the spring sheet (230) being arranged facing away from the jaw arm (100).

7. The universal curved and straight jaw pliers according to claim 6, characterized in that: The groove (211) is provided with mounting grooves (212) on the inner walls at both ends along the circumference thereof, and the spring piece (230) is movably embedded in the two mounting grooves (212) along both ends along the circumference thereof.

8. The universal curved and straight jaw pliers according to claim 3, characterized in that: One end of the connecting rod (410) is rotatably connected to the rotating hole (431), and a movable groove (432) is provided on the inner wall of the rotating hole (431). The length direction of the movable groove (432) is consistent with the radial direction of the connecting rod (410). A second spring (433) is connected in the movable groove (432), and the length direction of the second spring (433) is consistent with the length direction of the movable groove (432). One end of the second spring (433) is connected to the inner wall of the movable groove (432) along its length direction, and the other end of the second spring (433) is connected to a locking block (434). The locking block (434) is slidably connected to the movable groove (432) along the length direction of the movable groove (432). A locking groove (411) is provided on the circumferential side of the connecting rod (410), and the locking block (434) is embedded in the locking groove (411).

9. The universal curved and straight jaw pliers according to claim 8, characterized in that: The locking block (434) is provided with a guide surface along the circumference of the connecting rod (410), and the guide surface facilitates the locking block (434) to be embedded in or away from the locking groove (411).

10. The universal curved and straight jaw pliers according to claim 5, characterized in that: One end of the stopper (250) passes through the inner wall of the groove (211) and is connected to a fixing plate (251), and the fixing plate (251) is detachably connected to the clamp arm (100) via bolts.

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