Automatic film drawing machine for stretching end socket

Abstract

The utility model relates to an automatic film drawing machine for stretching an end socket, which comprises a machine table, a die holder arranged on the machine table, a first channel arranged in the middle of the die holder and communicated with two side ends, a lower die arranged at the top of the die holder, and a forming cavity vertically arranged in the middle of the lower die and used for stretching an end socket workpiece. An upper die is correspondingly connected to the upper portion of the lower die through a plurality of sliding rods, and a driving part for driving the upper die to move up and down is connected to the upper portion of the upper die; the film feeding mechanism comprises a film feeding support, a movable roller installed on the film feeding support and a film feeding motor in transmission connection with the movable roller. The automatic film-drawing machine for stretching the end socket disclosed by the utility model can improve the film-coating efficiency of a workpiece.

Description

Technical Field

[0001] The utility model relates to the field of liquefied gas cylinder production, and particularly to an automatic film stretching machine for stretching the head of a liquefied gas cylinder. Background Art

[0002] As a common pressure vessel, liquefied gas cylinders are widely used in industrial, civil and special environments. They are usually used to store and transport liquefied gases, such as liquefied petroleum gas, liquefied natural gas, etc. In the production process of liquefied gas cylinders, the manufacture of the head is a key step, which directly affects the sealing performance and safety of the cylinders. In addition, some liquefied gas cylinders are scrapped due to factors such as the quality of the base material and welding defects, and for manufacturers, the bodies of the scrapped cylinders can be reprocessed into other accessories.

[0003] In the current process of re-pressing other parts from scrapped heads, a film covering operation needs to be carried out on the head workpieces. The current film covering operation mainly relies on manual operation or semi-automatic equipment to convey the film to one side of the head workpiece, and after the stretching device performs stretching operation on the head workpiece, the completed workpiece is output. Therefore, it is necessary to improve the working efficiency of the semi-automatic equipment and manual operation for conveying the film. In view of the deficiencies of the prior art, it is necessary to propose a new technical solution. Summary of the Utility Model

[0004] The utility model provides an automatic film stretching machine for stretching the head of a liquefied gas cylinder, aiming to solve at least one of the technical problems existing in the prior art.

[0005] The technical solution of the utility model is an automatic film stretching machine for stretching the head of a liquefied gas cylinder, which includes: a machine table, a die holder arranged on the machine table, a first channel communicating with both ends is arranged in the middle of the die holder, a lower die arranged on the top of the die holder, a forming cavity for stretching the head workpiece is vertically arranged in the middle of the lower die, an upper die is connected above the lower die through a plurality of sliding rods, a driving component for driving the upper die to move up and down is connected above the upper die, a film feeding mechanism is arranged adjacent to one side of the die holder, the film feeding mechanism includes a film feeding bracket, a movable roller installed on the film feeding bracket and a film feeding motor drivingly connected with the movable roller, a film clamping mechanism is arranged adjacent to the other two sides of the die holder, the film clamping mechanism includes a film clamping motor, a transmission disk drivingly connected with the film clamping motor, a plurality of film clamping plates fixedly connected with the transmission disk in the circumferential direction and a film clamping component arranged at the end of the film clamping plates, wherein, the space between the upper die and the lower die is used for passing through the film covering the head workpiece.

[0006] Further, the film clamping component includes a film clamping cylinder installed at the end of the film clamping plate and a clamping block drivingly connected with the push rod of the film clamping cylinder, and the clamping block is used for clamping or loosening the film.

[0007] Furthermore, the film clamping assembly includes a transmission rod, both ends of the transmission rod are respectively drivingly connected to a pair of the transmission discs through belts, and the film clamping motor is drivingly connected to one of the transmission discs through a belt.

[0008] Furthermore, the forming cavity is vertically and communicatively connected to the first channel. One side of the first channel is correspondingly provided with the film feeding mechanism, and the other side of the first channel is an output port for outputting the stretched and completed head workpiece. A pushing cylinder for pushing the completed head workpiece to the output port of the head workpiece is arranged between the film feeding mechanism and the first channel.

[0009] Furthermore, the film feeding mechanism includes a plurality of adjusting rollers, and the adjusting rollers are arranged between the movable roller and the die base.

[0010] Furthermore, three film clamping plates are circumferentially and fixedly connected to the transmission disc, and the included angles between the film clamping plates are all equal.

[0011] Furthermore, it further includes: a manipulator, the manipulator is arranged adjacent to the machine table and the film feeding mechanism, and the manipulator is used for clamping the head workpiece to be stretched.

[0012] Furthermore, the driving component is a hydraulic driving component.

[0013] The beneficial effects of the present utility model include:

[0014] 1. In the above-mentioned automatic film stretching machine for stretching heads, the film clamping assembly drives the film clamping cylinder at the end of the transmission disc through the film clamping motor. The film clamping cylinder clamps the film sent by the film feeding mechanism to perform the film covering operation on the head workpiece. Compared with the current manual or semi-automatic equipment for film feeding operation, it can improve the efficiency of film covering for workpieces.

[0015] 2. The film clamping assembly drives the film clamping cylinder at the end of the transmission disc through the film clamping motor. The film clamping cylinder clamps the film sent by the film feeding mechanism to perform the film covering operation on the head workpiece. Compared with the current manual or semi-automatic equipment for film feeding operation, it can improve the efficiency of film covering for workpieces.

[0016] In addition, the additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. Description of the Drawings

[0017] Figure 1 is the overall schematic diagram of the automatic film stretching machine for stretching heads according to the embodiment of the present utility model.

[0018] Figure 2 is the longitudinal sectional schematic diagram of the automatic film stretching machine for stretching heads according to the embodiment of the present utility model.

[0019] Figure 3 It is the first detailed schematic diagram of the stretching head automatic film pulling machine according to the embodiment of the present utility model.

[0020] Figure 4 It is the second detailed schematic diagram of the stretching head automatic film pulling machine according to the embodiment of the present utility model.

[0021] Figure 5 It is the third detailed schematic diagram of the stretching head automatic film pulling machine according to the embodiment of the present utility model. Specific implementation manners

[0022] The following will clearly and completely describe the concept, specific structure and technical effects generated by the present utility model in combination with the embodiments and the drawings, so as to fully understand the purpose, solution and effects of the present utility model. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0023] It should be noted that, unless otherwise specified, when a certain feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. In addition, the descriptions such as up, down, left, right, top, bottom, etc. used in the present utility model are only relative to the mutual positional relationship of the components of the present utility model in the drawings.

[0024] In addition, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present application. The terms used in the description of the present specification are only for describing specific embodiments, and are not intended to limit the present utility model. The term "and / or" used herein includes any combination of one or more of the related listed items.

[0025] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various elements, these elements should not be limited to these terms. These terms are only used to distinguish elements of the same type from each other. For example, without departing from the scope of the present disclosure, the first element may also be referred to as the second element, and similarly, the second element may also be referred to as the first element.

[0026] Referring to Figures 1 to 5 As shown, in some embodiments, the present utility model discloses a stretching head automatic film pulling machine, which includes:

[0027] Referring to Figures 1 to 2 The machine table 100 shown, the machine table has a certain distance from the ground and is used to cooperate with the hand and the film feeding mechanism 300.

[0028] Referring to Figures 1 to 2As shown, a die holder 200 is provided on the machine table 100. A first channel 210 communicating with both ends is provided in the middle of the die holder 200. The die holder 200 is used to support the lower die 110 below, and the die holder 200 can also be used as an output component for the completed workpiece.

[0029] Refer to Figures 1 to 2 As shown, a lower die 110 is provided on the top of the die holder 200. A forming cavity 111 for stretching the head workpiece is vertically provided in the middle of the lower die 110. Above the lower die 110, an upper die 120 is connected by a plurality of sliding rods, and a driving component 121 for driving the upper die 120 to move up and down is connected above the upper die 120. The above upper die and lower die have formed a complete stretching mechanism. The operator controls the driving component to control the upper die to move downward, extruding the head into the forming cavity 111 for extrusion and stretching.

[0030] Refer to Figures 3 to 5 As shown, a film feeding mechanism 300 is adjacently provided on one side of the die holder 200. The film feeding mechanism 300 includes a film feeding bracket 310, a movable roller 320 installed on the film feeding bracket 310, and a film feeding motor 330 drivingly connected to the movable roller 320. The film feeding motor 330 drives the movable roller 320 to rotate, so that the film wound on the movable roller 320 is released.

[0031] Refer to Figures 3 to 5 As shown, film clamping mechanisms 400 are adjacently provided on the other two sides of the die holder 200. The film clamping mechanisms 400 include film clamping motors 410, transmission discs 420 drivingly connected to the film clamping motors 410, a plurality of film clamping plates 430 circumferentially and fixedly connected to the transmission discs 420, and film clamping assemblies 440 provided at the ends of the film clamping plates 430. The space between the upper die 120 and the lower die 110 is used for the film covering the head workpiece to pass through. The film output from the film feeding mechanism 300 is drawn out from the roll material of the movable roller 320, and the film is sequentially passed through the head workpiece as required and then laid between the upper die and the lower die in the center of the press. The two ends of the film are placed on the opened film clamping assemblies 440. The film clamping cylinder controls the film clamping assembly to clamp the film. After clamping, the film clamping motor 410 drives the transmission disc 420 to rotate about 5 to 15 degrees to pull the film forward a short distance. Manually or through a manipulator 500, the manipulator 500 is provided adjacent to the machine table 100 and the film feeding mechanism 300, and the manipulator 500 is used to clamp the head workpiece to be stretched. Continue to refer to Figures 3 to 5 As shown, after the head workpiece is placed and presses the film, the film clamping cylinder controls the film clamping assembly to open. The film clamping motor 410 drives the transmission disc 420 to rotate reversely about 5 to 15 degrees to retreat a short distance. After reaching the position, the film clamping cylinder clamps again.

[0032] Specifically, refer to Figures 3 to 5As shown, the film clamping assembly 440 includes a film clamping cylinder 441 installed at the end of the film clamping plate 430 and a clamping block 442 connected to the push rod of the film clamping cylinder 441, and the clamping block 442 is used to clamp or loosen the film. The transmission disk 420 is circumferentially fixedly connected with three film clamping plates 430, and the angles between the film clamping plates 430 are equal. The film clamping assembly drives the film clamping cylinder 441 at the end of the transmission disk 420 through the film clamping motor 410, and the film clamping cylinder 441 clamps the film sent by the film feeding mechanism 300 to perform film coating on the head workpiece. Compared with the current manual or semi-automatic equipment for film feeding, the efficiency of workpiece coating can be increased.

[0033] Continue to refer to Figures 4 to 5 As shown, the film clamping assembly 440 includes a transmission rod 443, both ends of which are respectively connected to a pair of the transmission discs 420 through belts, and the film clamping motor 410 is connected to one of the transmission discs 420 through a belt. The film clamping assembly transmits power through the transmission rod, so that the transmission discs and the film clamping plates 430 on both sides of the mold base 200 can rotate at an equal angular speed to clamp or release the film.

[0034] Continue to refer to Figure 3 As shown, the molding cavity 111 is connected with the first channel 210 at the upper and lower parts, one side of the first channel 210 is provided corresponding to the film feeding mechanism 300, and the other side of the first channel 210 is an outlet for outputting the stretched end-piece, and a push cylinder 340 for pushing the finished end-piece to the end-piece outlet is provided between the film feeding mechanism 300 and the first channel 210. After the end-piece is stretched by the cooperation of the upper and lower molds, it falls from the molding cavity 111 to the first channel 210 in turn, and then the push cylinder 340 pushes out the stretched end-piece.

[0035] Reference Figures 3 to 5 As shown, the film feeding mechanism 300 includes a plurality of adjustment rollers 350, and the adjustment rollers 350 are arranged between the movable roller 320 and the mold base 200. The plurality of adjustment rollers can facilitate the output tightness of the film and better match the speed of the head workpiece extension operation.

[0036] In some embodiments, the driving component 121 is a hydraulic driving component 121 .

[0037] The following is the working principle of this stretch head automatic film drawing machine:

[0038] 2. Initial state setting after power on:

[0039] 2.1. The clamping block 442 connected to the film clamping cylinder 441 is opened;

[0040] 2.2. The push cylinder 340 is retracted;

[0041] 2.3. The film clamping motor 410 stops;

[0042] 2.4. The film feeding motor 330 stops;

[0043] 3. Working principle and operation steps

[0044] 3.1. Power on the machine. After confirming that the upper mold is in the upper limit position, press the reset button. The film clamping motor 410 remains open, the feeding cylinder 340 retracts for protection, the film clamping motor 410 rotates to reposition the initial position, and the film feeding motor 330 stops.

[0045] 3.2. The operator performs pre-treatment of pulling the film: The operator pulls out the film from the coil of the movable roller 320 in the film feeding mechanism 300, and sequentially passes the film through multiple adjusting rollers 350 as required and then lays it between the upper and lower molds in the center of the press. The films at both ends are placed on the opened clamping blocks 442;

[0046] 3.3. Press the start button to start the program: The film clamping cylinder 441 drives the clamping block 442 to open and clamp the film. After clamping, the film clamping motor 410 controls the transmission disk 420 to rotate about 5 to 15 degrees to pull the film forward a short distance;

[0047] 3.4. The manipulator 500 places the head workpiece above the lower mold and then leaves to grab a new head workpiece;

[0048] 3.5. After the head workpiece is placed and presses the film, the film clamping cylinder 441 drives the clamping block 442 to open, rotates reversely about 5 to 15 degrees and retreats a short distance. After reaching the position, the film clamping cylinder 441 drives the clamping block 442 to open and clamp again;

[0049] 3.6. Then the film clamping cylinder 441 drives the clamping block 442 to clamp the film. After clamping, the film clamping motor 410 controls the transmission disk 420 to rotate about 5 to 15 degrees again to pull the film forward a short distance;

[0050] 3.7. After rotating in place, the press operates and the upper mold presses the head. After the formed head workpiece is pressed well, it falls onto the mold base 200 below the lower mold;

[0051] 3.8. The feeding cylinder 340 operates to push the pressed head out of the press. At the same time, the film clamping motor 410 pulls the film and rotates about 120 degrees again. After reaching the position, it waits for a new head workpiece to be placed in the press;

[0052] 3.9. The manipulator 500 places the new head workpiece above the lower mold again to press the film. At this time, repeat the operations in steps 3.5 to 3.8 to enter the cyclic stretching reciprocating motion.

[0053] In addition, proximity switches are provided above and below the adjusting roller 350. When the upper proximity switch is on, the film feeding motor rotates with a single longest rotation time set to 6 to 10S. When the lower proximity switch is on, the film feeding stops rotating.

[0054] As described above, only the preferred embodiments of the present invention are given. The present invention is not limited to the above embodiments. As long as it achieves the technical effects of the present invention by the same means, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure. All of them shall fall within the scope of protection of the present invention. Within the scope of protection of the present invention, various different modifications and changes can be made to its technical solutions and / or implementation manners.

Claims

1. A stretching head automatic film drawing machine, characterized in that: include: Machine (100), A mold base (200) is arranged on the machine platform (100), wherein a first channel (210) is provided in the middle of the mold base (200) and communicates with both side ends. A lower mold (110) is arranged on the top of the mold base (200), and a molding cavity (111) for stretching a head workpiece is vertically arranged in the middle of the lower mold (110). An upper mold (120) is connected to the upper side of the lower mold (110) via a plurality of sliding rods, and a driving component (121) for driving the upper mold (120) to move up and down is connected to the upper side of the upper mold (120). A film feeding mechanism (300) is disposed adjacent to one side of the mold base (200), the film feeding mechanism (300) comprising a film feeding support (310), a movable roller (320) mounted on the film feeding support (310), and a film feeding motor (330) drivingly connected to the movable roller (320). A film clamping mechanism (400) is adjacently arranged on the other two sides of the mold base (200), the film clamping mechanism (400) comprising a film clamping motor (410), a transmission disk (420) drivingly connected to the film clamping motor (410), a plurality of film clamping plates (430) circumferentially fixedly connected to the transmission disk (420), and a film clamping assembly (440) arranged at the end of the film clamping plate (430), The space between the upper mold (120) and the lower mold (110) is used to pass a film covering the head workpiece.

2. The stretching head automatic film drawing machine according to claim 1, characterized in that: The film clamping assembly (440) comprises a film clamping cylinder (441) installed at the end of the film clamping plate (430) and a clamping block (442) drivingly connected to the push rod of the film clamping cylinder (441), and the clamping block (442) is used to clamp or loosen the film.

3. The automatic film-drawing machine with a stretching head according to claim 1, characterized in that: The film clamping assembly (440) comprises a transmission rod (443), both ends of which are respectively connected to a pair of transmission discs (420) via belts, and the film clamping motor (410) is connected to one of the transmission discs (420) via a belt.

4. The automatic film-drawing machine with a stretching head according to claim 1, characterized in that: The molding cavity (111) is connected to the first channel (210) at the top and bottom. One side of the first channel (210) is arranged corresponding to the film feeding mechanism (300). The other side of the first channel (210) is an outlet for outputting the stretched finished head workpiece. A pushing cylinder (340) is arranged between the film feeding mechanism (300) and the first channel (210) for pushing the finished head workpiece to the outlet of the head workpiece.

5. The automatic film-drawing machine with a stretching head according to claim 1, characterized in that: The film feeding mechanism (300) comprises a plurality of adjustment rollers (350), and the adjustment rollers (350) are arranged between the movable rollers (320) and the mold base (200).

6. The automatic film-drawing machine with a stretching head according to claim 1, characterized in that: The transmission disc (420) is circumferentially fixedly connected with three diaphragm plates (430), and the included angles between the diaphragm plates (430) are all equal.

7. The automatic film-drawing machine with a stretching head according to claim 1, characterized in that: Also includes: A robot (500) is arranged adjacent to the machine platform (100) and the film feeding mechanism (300), and the robot (500) is used to clamp the end cap workpiece to be stretched.

8. The automatic film-drawing machine with a stretching head according to claim 1, characterized in that: The driving component (121) is a hydraulic driving component (121).

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