CN217033258U - Dumbbell type sample preparation device for plastic pipes - Google Patents

Abstract

The utility model discloses a dumbbell-type sample preparation device for plastic pipes, which comprises a machine table, a cutting knife group arranged on the machine table, and a moving mechanism, wherein the moving mechanism comprises a first moving seat and a driving mechanism; the clamping mould is provided with a dumbbell-shaped forming cavity for clamping the sample strips, one side of the clamping mould is hinged on the first movable seat, and the clamping mould can rotate on the first movable seat along the horizontal direction around the hinged position of the clamping mould; the elastic buffer mechanism is arranged on the machine table, one side of the elastic buffer mechanism is abutted against the clamping mould, and the elastic buffer mechanism has elastic acting force for pushing the clamping mould to the cutting knife group; utilize moving mechanism to drive the relative cutting knife tackle of centre gripping mould and remove, simultaneously under elastic buffer mechanism's elasticity impetus effect, can make the relative cutting knife tackle of shape along the shaping chamber of centre gripping mould remove in cutting process, replace the cutting operation that artifical promotion centre gripping mould.

Description

Dumbbell type sample preparation device for plastic pipes

Technical Field

The utility model relates to cutting equipment, in particular to a dumbbell type sample preparation device for a plastic pipe.

Background

One of the material quality testing tests of the pipe is a tensile test. The test requires slitting and sampling the tubing and then cutting the splines into dumbbells. The stretching device clamps the two ends of the dumbbell-shaped sample strip and then stretches the dumbbell-shaped sample strip.

This kind of dumbbell-shaped spline cutting equipment, like chinese utility model patent CN202021864966.7, a prototype system for plastics tubular product tensile test, it utilizes the prototype system mould that has dumbbell shaping cavity to carry out the centre gripping to the spline, then utilizes the cutting blade to cut the spline to dumbbell-shaped along dumbbell shaping cavity trend. When cutting is used, the sample preparation mould needs to be held by hands, and then the mould is manually pushed to carry out subsequent cutting operation. Such a mode of operation has a safety hazard to workers.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the related art. Therefore, the utility model provides a dumbbell type sample preparation device for plastic pipes.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

the dumbbell-type spline sample preparation device for the plastic pipe comprises a machine table and a cutting knife set arranged on the machine table, and further comprises:

the moving mechanism comprises a first moving seat and a driving mechanism, and the driving mechanism drives the first moving seat to transversely move on the machine table;

the clamping mould is provided with a dumbbell-shaped forming cavity for clamping a sample strip, one side of the clamping mould is hinged to the first movable seat, and the clamping mould can rotate on the first movable seat along the horizontal direction around the hinged position of the clamping mould;

the elastic buffer mechanism is arranged on the machine table, one side of the elastic buffer mechanism is abutted to the clamping mould, and the elastic buffer mechanism has elastic acting force for pushing the clamping mould to the cutting knife group.

The dumbbell-type sample preparation device for the plastic pipe, provided by the embodiment of the utility model, has at least the following beneficial effects: utilize moving mechanism to drive the relative cutting knife tackle of centre gripping mould and remove, simultaneously under elastic buffer mechanism's elasticity impetus effect, can make the relative cutting knife tackle of shape along the shaping chamber of centre gripping mould remove in cutting process, replace the cutting operation that artifical promotion centre gripping mould.

According to some embodiments of the utility model, a rotating head is rotatably mounted on the first moving seat, a clamping seat is arranged on the rotating head, a mounting groove matched and spliced with the rotating head is arranged on the clamping mold, the clamping seat is clamped in the mounting groove, and the clamping mold rotates on the first moving seat around the rotating head along the horizontal direction.

According to some embodiments of the present invention, the elastic buffer mechanism includes a second movable seat, a fixed seat, a buffer seat and an elastic member, the second movable seat is slidably mounted on the machine platform, the fixed seat is fixedly mounted on the second movable seat, the buffer seat and the fixed seat are connected through a plurality of the elastic members, and the buffer seat can abut against the clamping mold.

According to some embodiments of the utility model, the end surface of the cushion shoe facing the holding die is provided with a number of pulleys.

According to some embodiments of the utility model, the machine table is provided with a slide rail, the second moving seat is connected to the machine table in a sliding manner through the slide rail, and the second moving seat is fixed on the machine table through a locking member.

According to some embodiments of the utility model, the direction of movement of the second mobile station is parallel to the direction of movement of the first mobile station.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic top view of the present invention.

Reference numerals: a machine 100; a guide rail 110; a slide rail 120; a cutter group 200; a blade 210; a moving mechanism 300; a first movable base 310; a rotating head 311; a card holder 312; a drive mechanism 320; a holding die 400; a molding cavity 410; a mounting groove 420; an elastic buffer mechanism 500; a second movable base 510; a fixed seat 520; a cushion seat 530; a pulley 531; an elastic member 540; a retaining member 550.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

The utility model relates to a dumbbell-type sample preparation device for plastic pipes, which comprises a machine table 100, a cutting knife set 200, a moving mechanism 300, a clamping die 400 and an elastic buffer mechanism 500. The cutting blade set 200 is installed on the machine 100, and as shown in fig. 1, the cutting blade 210 of the cutting blade set 200 stands on the machine 100. The holding mold 400 is provided with a dumbbell-shaped molding cavity 410 for holding the sample strips, and in the embodiment, the holding mold 400 can be selected from the existing holding structure, such as a sample making mold involved in a sample making machine for plastic pipe stretching experiments of CN 202021864966.7. A strip of plastic tubing spline is clamped in the molding cavity 410. Under the combined action of the moving mechanism 300 and the elastic buffer mechanism 500, the side faces of the splines are attached to the blades 210 of the cutting knife tackle 200, the holding die 400 moves, and the blades 210 cut the splines into dumbbell shapes along the molding cavities 410.

The moving mechanism 300 includes a first moving base 310 and a driving mechanism 320, and the first moving base 310 may be slidably mounted on the machine table 100 through the guide rail 110. In this embodiment, the guide rail 110 is disposed in a left-right direction, the first movable base 310 is driven by the driving mechanism 320 to move laterally along the guide rail 110, and the driving mechanism 320 may be driven by a motor. The cutter unit 200 is located at the front side of the first movable base 310. The clamping mold 400 is installed on the first sliding seat, and the left side of the clamping module is hinged to the first movable seat 310. in this embodiment, a rotating head 311 is installed on the first movable seat 310, the rotating structure can be rotatably installed on the first movable seat 310 through a bearing assembly, and the rotating axis of the rotating head 311 is vertically upward in space. A clamping seat 312 is disposed on the rotating head 311, and the clamping seat 312 may be plate-shaped and extends upward from the rotating head 311. The clamping seat 312 rotates on the first movable seat 310 along with the rotating head 311 around the central axis of the rotating head 311. The left side of the clamping mold 400 is provided with a mounting groove 420, the mounting groove 420 is matched with the clamping seat 312, the clamping seat 312 is inserted into the mounting groove 420, and the clamping mold 400 can rotate on the first movable seat 310 along the horizontal direction around the central axis of the rotating head 311 through the clamping seat 312.

The elastic buffer mechanism 500 is installed on the machine platform 100, and the elastic buffer mechanism 500 is connected with the clamping mold 400. The holding mold 400 and the elastic buffer mechanism 500 move laterally with the first movable base 310. When the cutting knife set 200 cuts the bead clamped on the clamping die 400, the position of the cutting knife set 200 on the machine table 100 is fixed, the clamping die 400 swings back and forth around the rotating head 311 on the first moving seat 310 relative to the cutting knife set 200 along the forming cavity 410, and meanwhile, the elastic buffer mechanism 500 has an elastic acting force pushing towards the direction of the cutting knife set 200 on the clamping die 400, namely, when the first moving seat 310 moves transversely and the clamping die 400 rotates, the front side of the forming cavity 410 of the clamping die 400 is attached to the rolling surface of the cutting edge 210 under the action of the elastic buffer mechanism 500, and the spline is ensured to be cut into a dumbbell shape along with the forming cavity 410.

In some embodiments of the present invention, the elastic buffer mechanism 500 includes a second movable base 510, a fixed base 520, a buffer base 530 and an elastic member 540. The second movable base 510 may be slidably mounted on the machine table 100 through the slide rail 120. The fixed base 520 is fixed on the second movable base 510, the buffer base 530 is located in front of the fixed base, the buffer base 530 and the fixed base 520 are connected by a plurality of elastic members 540, and the front side of the buffer base 530 faces a direction of pushing the clamping mold 400 toward the cutting blade assembly 200. Before cutting, the second movable base 510 moves the buffer base 530 to the rear side of the clamping mold 400, the buffer base 530 abuts against the rear side of the clamping mold 400, and the fixed base 520 moves forward, so that the elastic members 540 are compressed and elastically deformed between the buffer base 530 and the fixed base 520. During the cutting process, the buffer seat 530 automatically moves back and forth in an adaptive manner along with the movement of the clamping mold 400, and the buffer seat 530 keeps pushing the clamping mold 400 towards the cutting knife block 200 by using the action of the elastic element 540, so that the cutting knife block 200 cuts the splines into dumbbell shapes along the forming cavity 410. In addition, after the cutting is completed, the second moving block 510 may be moved to separate the buffer block 530 from the clamp mold 400, and then the clamp mold 400 may be rotated in a rear direction about the rotating head 311 away from the cutting blade group 200, thereby taking out the splines on the clamp mold 400.

Further, since the clamp die 400 moves laterally left and right along with the first movable base 310 during the cutting process, friction may occur between the clamp die 400 and the buffer base 530, in order to reduce the sliding friction, a plurality of pulleys 531 are disposed on an end surface of the buffer base 530 facing the clamp die 400, and when the clamp die 400 moves laterally, the pulleys 531 roll on the clamp die 400.

In some embodiments of the present invention, the second movable base 510 is moved before cutting, and after the second movable base 510 is positioned, the second movable base 510 is fixed on the current position of the machine table 100 by using the locking member 550, and the locking member 550 may be a screw. The locking member 550 is screwed with the machine table 100 by passing downward through the second movable base 510. Correspondingly, a threaded hole is preset on the machine table 100.

In order to facilitate the second movable base 510 to drive the buffer base 530 to exit, the slide rail 120 on the machine table 100 is disposed in a front-left direction, i.e., the slide rail 120 is parallel to the moving direction of the first movable base 310, and the moving direction of the second movable base 510 is parallel to the moving direction of the first movable base 310. When it is necessary to rotate the clamping mold 400 backward after the cutting is completed, the second movable base 510 can be rapidly withdrawn.

In the description herein, references to the description of a particular embodiment or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (6)

1. The utility model provides a plastics tubular product dumbbell formula spline system appearance device, includes board (100), installs cutting knife tackle (200) on board (100), its characterized in that still includes:

a moving mechanism (300) comprising a first moving seat (310) and a driving mechanism (320), wherein the driving mechanism (320) drives the first moving seat (310) to move transversely on the machine table (100);

the clamping mould (400) is provided with a dumbbell-shaped forming cavity (410) for clamping splines, one side of the clamping mould (400) is hinged to the first movable seat (310), and the clamping mould (400) can rotate on the first movable seat (310) along the horizontal direction around the hinged position of the clamping mould;

the elastic buffer mechanism (500) is installed on the machine table (100), one side of the elastic buffer mechanism (500) is abutted to the clamping die (400), and the elastic buffer mechanism (500) has elastic acting force for pushing the clamping die (400) to the cutting knife group (200).

2. The dumbbell-type sample preparation device for the plastic pipes according to claim 1, characterized in that: rotate on first removal seat (310) and install rotation head (311), be equipped with cassette (312) on rotation head (311), be equipped with on centre gripping mould (400) with rotate mounting groove (420) that head (311) cooperation was pegged graft, cassette (312) joint is in mounting groove (420), centre gripping mould (400) wind rotation head (311) is in rotate along the horizontal direction on first removal seat (310).

3. The dumbbell-type spline sample preparation device for the plastic pipe according to claim 1, characterized in that: the elastic buffer mechanism (500) comprises a second movable seat (510), a fixed seat (520), a buffer seat (530) and an elastic piece (540), the second movable seat (510) is slidably mounted on the machine table (100), the fixed seat (520) is fixedly mounted on the second movable seat (510), the buffer seat (530) is connected with the fixed seat (520) through a plurality of elastic pieces (540), and the buffer seat (530) can abut against the clamping mold (400).

4. The dumbbell-type spline sample preparation device for the plastic pipe according to claim 3, characterized in that: the end face, facing the clamping mould (400), of the buffer seat (530) is provided with a plurality of pulleys (531).

5. The dumbbell-type sample preparation device for the plastic pipes according to claim 3, characterized in that: be equipped with slide rail (120) on board (100), second removes seat (510) and passes through slide rail (120) sliding connection is in on board (100), just second removes seat (510) and fixes through retaining member (550) on board (100).

6. The dumbbell-type spline sample preparation device for the plastic pipe according to claim 3, characterized in that: the moving direction of the second moving seat (510) is parallel to the moving direction of the first moving seat (310).

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