Hard buffer type pipe grabber

Abstract

The utility model discloses a hard buffer type pipe grabber which comprises a pipe grabber seat and a pipe grabber, a reset spring, a sealing air bag and an integrated piston are arranged on the pipe grabber seat, a buffer piece is arranged on the pipe grabber seat, the pipe grabber is connected with the pipe grabber seat through an elastic connector, the buffer piece is a POM hard buffer block, and the elastic connector is connected with the pipe grabber seat. The POM hard buffer block is fixedly connected with the pipe grabber through two fixing screws, and each fixing screw is sleeved with a fastener. The buffer piece made of polyurethane elastomer elastic materials is replaced by the POM hard buffer block, and the POM hard buffer block is firmly fixed on the bobbin grabbing device through the two fixing screws, so that the consistency of the buffer stroke can be effectively ensured, and the phenomenon of high and low bobbins is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of yarn dropping, in particular to a hard buffer type pipe grabber. Background Art

[0002] The spinning frame is a key equipment in the spinning industry. With the upgrading of the textile industry, users have higher and higher requirements for textile machinery, and their main needs are focused on more highly automated, more labor-saving equipment, and guaranteed stability and reliability. The main function of the tube grabber is to clamp the bobbin and cooperate with various components to achieve the insertion and extraction of the spinning frame. It is the core component unit of the doffing. Its technical level and performance directly affect the automation, stability, reliability and production efficiency of the doffing trolley.

[0003] The buffer block of an energy-saving and efficient buffer-type pipe grabber published in Chinese patent publication number CN219410036U is a polyurethane elastomer, which plays a buffering role by the elastic force of the material itself. However, for spinning machine factories with long spinning machine spindle winding cycles, this type of elastomer buffer block will cause a few spindles to have too much yarn winding, causing the buffer stroke of a few buffer blocks to exceed the predetermined stroke, and the bobbins on the spinning spindles will appear uneven. Therefore, this application provides a hard buffer-type pipe grabber to meet the demand. Utility Model Content

[0004] The purpose of the present application is to provide a hard buffer pipe grabber to solve the shortcomings of the buffer pipe grabber in the CN219410036U patent document.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a hard buffer type pipe grabber, comprising a pipe grabber seat on which a return spring, a sealing airbag and an integrated piston are arranged, and a pipe grabber on which a buffer is arranged, the pipe grabber is connected to the pipe grabber seat through an elastic connector, the buffer is a POM hard buffer block, and the POM hard buffer block is fixedly connected to the pipe grabber through two fixing screws, and each of the fixing screws is provided with a fastener.

[0006] As a preferred implementation manner in this embodiment, two hollow frustum-shaped bosses are provided on the mounting end of the pipe grabber, and the POM hard buffer block has a receiving and abutting cavity adapted to the shape of the two frustum-shaped bosses.

[0007] As a preferred implementation manner in this embodiment, outer surfaces of the frustum-shaped step and the frustum-shaped protrusion are both set to be rough surfaces.

[0008] As a preferred implementation manner in this embodiment, the diameter of the left end of the frustum-shaped step is greater than the diameter of the right end of the frustum-shaped step, and the diameter of the left end of the frustum-shaped boss is greater than the diameter of the right end of the frustum-shaped boss.

[0009] As a preferred implementation manner in this embodiment, a plurality of mounting grooves are provided on the inner wall of the accommodating and abutting cavity, and an elastic positioning ring is fixed in each mounting groove. Positioning grooves adapted to the elastic positioning rings are provided on the frustum-shaped convex column and the plurality of frustum-shaped steps.

[0010] In summary, the technical effects and advantages of the present utility model are as follows:

[0011] The structure of the present utility model is reasonable. The buffer member made of the polyurethane elastomer elastic material is replaced with a POM hard buffer block, and the POM hard buffer block is firmly fixed on the tube gripper by two fixing screws, which can effectively ensure the consistency of the buffer stroke and avoid the phenomenon of high and low yarn tubes.

[0012] In the present utility model, a hollow frustum-shaped convex column and an accommodating and abutting cavity adapted thereto are provided to limit the POM hard buffer block, which is convenient for the installation of subsequent fixing screws. At the same time, after installation, the inner wall of the accommodating and abutting cavity will form extrusion and abutment with the outer wall of the frustum-shaped convex column, which can further enhance the fixing effect between the POM hard buffer block and the tube gripper.

[0013] In the present utility model, a plurality of frustum-shaped steps with gradually increasing diameters are sequentially and equally spaced on the outer wall of the frustum-shaped convex column. A plurality of frustum-shaped steps with gradually increasing diameters are sequentially and equally spaced on the outer wall of the frustum-shaped convex column

[0014] In the present utility model, an elastic positioning ring is provided to further enhance the fixing effect between the POM hard buffer block and the frustum-shaped convex column. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 It is Figure 1 the front view sectional structural schematic diagram in

[0018] Figure 3 It is Figure 2 the side view structural schematic diagram of the buffer member in

[0019] Figure 4 It is Figure 1 the partial sectional structural schematic diagram of Embodiment 1;

[0020] Figure 5 For Figure 1 Partial sectional structure schematic diagram of the second embodiment;

[0021] Figure 6 For Figure 5 Enlarged schematic diagram of the structure at position A in

[0022] In the figure: 1, pipe gripper; 2, buffer; 3, integral piston; 4, return spring; 5, elastic connector; 6, pipe gripper seat; 7, sealing airbag; 8, fixing screw; 9, fastener; 10, accommodation and abutment cavity; 11, frustum-shaped convex column; 12, frustum-shaped step; 13, elastic positioning ring. Specific implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Embodiment 1, referring to Figures 1-4 , a hard buffer type pipe gripper shown, including a pipe gripper seat 6 provided with a return spring 4, a sealing airbag 7 and an integral piston 3 thereon, and a pipe gripper 1 provided with a buffer 2 thereon. The pipe gripper 1 is connected to the pipe gripper seat 6 through an elastic connector 5. The buffer 2 is a POM hard buffer block, and the POM hard buffer block is fixedly connected to the pipe gripper 1 through two fixing screws 8. Each fixing screw 8 is sleeved with a fastener 9.

[0025] Replacing the buffer made of polyurethane elastomer elastic material with a POM hard buffer block, and firmly fixing the POM hard buffer block to the pipe gripper 1 through two fixing screws 8 can effectively ensure the consistency of the buffer stroke and avoid the phenomenon of high and low yarn tubes.

[0026] It should be noted that, first, the fastener 9 can be set as a spring or a spring washer or other objects; second, the POM hard buffer block is provided with a threaded hole adapted to the fixing screw, and the pipe gripper 1 is provided with a through hole adapted to the fixing screw 8 and the fastener 9.

[0027] As a preferred implementation manner in this embodiment, as Figure 4 shown, two hollow frustum-shaped convex columns 11 are provided on the installation end of the pipe gripper 1, and the POM hard buffer block has an accommodation and abutment cavity 10 adapted to the outer shapes of the two frustum-shaped convex columns 11.

[0028] During installation, the receiving and resisting cavity 10 provided on the POM hard buffer block can be inserted with the frustum-shaped convex column 11 to limit the POM hard buffer block (facilitating the subsequent installation of the fixing screw 8). At this time, the fixing screw 8 can directly pass through the hollow hole of the frustum-shaped convex column 11 and be fixedly connected to the POM hard buffer block by threading. During the threading and fixing connection process, the inner wall of the receiving and resisting cavity 10 will form an extrusion and resistance against the outer wall of the frustum-shaped convex column 11. Through the friction force between the receiving and resisting cavity 10 and the outer surface of the frustum-shaped convex column 11, the fixing effect between the POM hard buffer block and the pipe gripper 1 is further enhanced.

[0029] Embodiment 2, the difference from Embodiment 1 is that:

[0030] As Figure 5 shown, a plurality of frustum-shaped steps 12 with gradually increasing diameters are sequentially and equidistantly arranged on the outer wall of the frustum-shaped convex column 11, and the inner cavity of the receiving and resisting cavity 10 is adapted to the frustum-shaped steps 12.

[0031] By providing a plurality of frustum-shaped steps 12 on the outer surface of the frustum-shaped convex column 11, the contact area between the receiving and resisting cavity 10 and the outer surface of the frustum-shaped convex column 11 can be increased, thereby further enhancing the fixing effect between the POM hard buffer block and the pipe gripper 1.

[0032] As a preferred implementation manner in this embodiment, the outer surfaces of both the frustum-shaped steps 12 and the frustum-shaped convex column 11 are set as rough surfaces.

[0033] The setting of the rough surface can improve the friction force between the outer surfaces of the frustum-shaped steps 12 and the frustum-shaped convex column 11 and the inner surface of the receiving and resisting cavity 10, and improve the firmness of the fixation between the POM hard buffer block and the pipe gripper 1.

[0034] As a preferred implementation manner in this embodiment, as Figure 6 shown, a plurality of installation grooves are provided on the inner wall of the receiving and resisting cavity 10, and an elastic positioning ring 13 is fixed in each installation groove. Positioning grooves adapted to the elastic positioning ring 13 are provided on the frustum-shaped convex column 11 and the plurality of frustum-shaped steps 12.

[0035] After the POM hard buffer block and the frustum-shaped convex column 11 are fixedly installed, at this time, while the inner wall of the receiving and resisting cavity 10 is in extrusion and resistance against the outer wall surface of the frustum-shaped convex column 11, the elastic positioning ring 13 is clamped in the positioning groove, further enhancing the fixing effect between the POM hard buffer block and the frustum-shaped convex column 11.

[0036] It should be noted that the outer surface of the elastic positioning ring 13 is sprayed with a ZS-711 inorganic anti-corrosion coating, and the coating has good wear resistance and corrosion resistance, which can improve the service life of the elastic positioning ring 13.

[0037] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A hard buffer type pipe grabber, comprising a pipe grabber seat (6) on which a return spring (4), a sealing airbag (7) and an integrated piston (3) are arranged, and a pipe grabber (1) on which a buffer member (2) is arranged, wherein the pipe grabber (1) is connected to the pipe grabber seat (6) via an elastic connector (5), and is characterized in that: The buffer member (2) is a POM hard buffer block, which is fixedly connected to the pipe grabber (1) via two fixing screws (8), and each of the fixing screws (8) is sleeved with a fastener (9).

2. A hard buffer pipe grabber according to claim 1, characterized in that: Two hollow frustoconical bosses (11) are provided on the mounting end of the pipe grabber (1), and a receiving and abutting cavity (10) adapted to the shape of the two frustoconical bosses (11) is provided on the POM hard buffer block.

3. A hard buffer pipe grabber according to claim 2, characterized in that: A plurality of frustum-shaped steps (12) with gradually increasing diameters are arranged in sequence and at equal intervals on the outer wall of the frustum-shaped protruding column (11), and the inner cavity of the accommodating abutment cavity (10) is adapted to the frustum-shaped steps (12).

4. A hard buffer pipe grabber according to claim 3, characterized in that: The outer surfaces of the frustum-shaped step (12) and the frustum-shaped convex column (11) are both configured as rough surfaces.

5. A hard buffer pipe grabber according to claim 3, characterized in that: A plurality of mounting grooves are provided on the inner wall of the accommodating and abutting cavity (10), and an elastic positioning ring (13) is fixed in each of the mounting grooves. Positioning grooves adapted to the elastic positioning ring (13) are provided on the frustum-shaped boss (11) and the plurality of frustum-shaped steps (12).

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