Wiring ejector pin mechanism used in vacuum chamber

Abstract

The utility model relates to a wiring thimble mechanism used in a vacuum chamber, which comprises a needle tube base, a needle tube, a thimble pressure spring and a thimble, the lower end of the needle tube is connected to the needle tube base, a sliding cavity is formed in the needle tube, the top wall of the sliding cavity is provided with a penetrating hole, the thimble is in an inverted T shape, the big end of the thimble is matched with the sliding cavity, and the lower end of the thimble is matched with the sliding cavity. The large end of the ejector pin is arranged in the sliding cavity so that the small end of the ejector pin can penetrate out of the penetrating-out hole, the ejector pin compression spring is arranged in the sliding cavity, the two ends of the ejector pin compression spring abut against the ejector pin and the needle tube base respectively, and a wiring screw is connected to the side wall of the needle tube in a threaded mode. The wiring ejector pin mechanism used in the vacuum chamber is simple in structure, facilitates wiring operation of the heating plate in the vacuum chamber, and is simple and convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging equipment, in particular to a wiring ejector mechanism used in a vacuum chamber. Background Art

[0002] In the packaging industry, in order to enhance the sealing effect, the items to be sealed are placed in a vacuum environment composed of an upper vacuum chamber and a lower vacuum chamber, and the items to be sealed are sealed by squeezing the sealing portion of the items through a heating plate arranged in the vacuum chamber. In the prior art, since the heating plate is arranged in the vacuum chamber, the wiring arrangement of the heating plate is relatively complicated, which makes the disassembly and assembly of the wiring relatively complicated and inconvenient.

[0003] In view of the above problems, the present invention makes improvements. Utility Model Content

[0004] The utility model provides a wiring ejector mechanism used in a vacuum chamber, which solves the above problems existing in the prior art during use.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A wiring ejector mechanism for use in a vacuum chamber comprises a needle tube base, a needle tube, an ejector compression spring and an ejector, wherein the lower end of the needle tube is connected to the needle tube base and a sliding cavity is formed in the needle tube, a through hole is provided on the top wall of the sliding cavity, the ejector is in an inverted T shape, the large end of the ejector matches the sliding cavity, and the small end matches the through hole, the large end of the ejector is placed in the sliding cavity so that the small end of the ejector passes through the through hole, the ejector compression spring is placed in the sliding cavity and the two ends of the ejector compression spring are respectively against the ejector and the needle tube base, and a wiring screw is threaded on the side wall of the needle tube.

[0007] Preferably, the lower end of the needle tube is screwed onto the needle tube base.

[0008] Preferably, it also includes an insulating seat, and the needle tube base is connected to the insulating seat.

[0009] Preferably, a first countersunk hole is provided on the lower surface of the insulating seat, a screw hole aligned with the first countersunk hole is provided in the needle tube base, and a connecting screw threaded into the screw hole is passed through the first countersunk hole.

[0010] Preferably, a plurality of second countersunk holes are formed on the upper surface of the insulating seat, and mounting screws are passed through the second countersunk holes.

[0011] Preferably, the ejector pin is made of brass.

[0012] In summary, the beneficial effects of the utility model are: simple structure, easy to disassemble and assemble, and solving the problem of troublesome wiring in the vacuum chamber in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0016] Figure 3 It is an exploded schematic diagram of the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the utility model after being installed in a vacuum chamber.

[0018] In the figure: 1. needle tube base; 11. screw hole; 2. needle tube; 21. sliding cavity; 22. penetration hole; 3. ejector pin compression spring; 4. ejector pin; 5. wiring screw; 6. insulating seat; 61. first countersunk hole; 62. connecting screw; 63. second countersunk hole; 64. mounting screw; 7. vacuum chamber top plate; 71. wiring screw; 72. wiring nut; 8. heating plate. DETAILED DESCRIPTION

[0019] The following will be combined with the attached embodiment of the utility model Figure 1-4 , 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 them. 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.

[0020] As shown in the figure, a wiring ejector mechanism for a vacuum chamber comprises an insulating seat 6, a needle tube base 1, a needle tube 2, an ejector compression spring 3 and an ejector 4, wherein the needle tube base 1 is connected to the insulating seat 6, the lower end of the needle tube 2 is connected to the needle tube base 1 and a sliding cavity 21 is formed in the needle tube 2, a through hole 22 is formed on the top wall of the sliding cavity 21, the ejector 4 is in an inverted T shape, the large end of the ejector 4 matches the sliding cavity 21, and the small end matches the through hole 22, the large end of the ejector 4 is placed in the sliding cavity 21 so that the small end of the ejector 4 passes through the through hole 22, the ejector compression spring 3 is placed in the sliding cavity 21 and the two ends of the ejector compression spring 3 are respectively against the ejector 4 and the needle tube base 1, and a wiring screw 5 is screwed on the side wall of the needle tube 2.

[0021] Specifically, the needle tube 2 is connected to the needle tube base 1: the lower end of the needle tube 2 is screwed to the needle tube base 1, which is convenient for disassembly and assembly of the needle tube 2 and the needle tube base 1, and convenient for assembly of the wiring ejector mechanism.

[0022] Specifically, the needle tube base 1 is connected to the insulating base 6: a first countersunk hole 61 is provided on the lower surface of the insulating base 6, a screw hole 11 aligned with the first countersunk hole 61 is provided in the needle tube base 1, and a connecting screw 62 screwed into the screw hole 11 is passed through the first countersunk hole 61, so as to facilitate the disassembly and assembly of the insulating base 6 and the needle tube base 1 and facilitate the assembly of the wiring ejector mechanism.

[0023] Specifically, a plurality of second countersunk holes 63 are formed on the upper surface of the insulating seat 6 , and mounting screws 64 are inserted into the second countersunk holes 63 .

[0024] Specifically, the ejector pin 4 is made of brass, and the needle tube 2 is made of brass. Based on the excellent electrical conductivity of brass, the electrical conductivity of the ejector pin 4 and the needle tube 2 is ensured.

[0025] In the above embodiment, when the terminal ejector mechanism is installed in the vacuum chamber, the insulating seat 6 is connected to the heating plate 8 by the mounting screw 64, and the terminal ejector mechanism is installed on the heating plate 8. The insulating seat 6 is located between the heating plate 8 and the needle tube base 1 to play a role of heat insulation and insulation. The wire end of the heating tube provided in the heating plate 8 is pressed and fixed on the needle tube 2 by rotating the wiring screw 5. When the heating plate 8 is installed in the vacuum chamber, the end of the ejector 4 passing through the outlet hole 22 is opposite to the wiring screw 71 provided on the top plate 7 of the vacuum chamber, and after the heating plate 8 is installed in place, the end of the ejector 4 is in conflict with the wiring screw 71. The end of the wiring screw 71 passing through the top plate 7 of the vacuum chamber is screwed with two wiring nuts 72, and the two wiring nuts 72 are screwed to the ends of the wiring screws 71. Two wiring nuts 72 are used to connect the wiring of the external power supply, so that the wiring screw 71, the ejector pin 4, and the needle tube 2 cooperate to play the role of conducting electricity between the external power supply and the heating tube on the heating plate 8. When the sealing operation is performed, the heating plate 8 squeezes the object and moves toward the top plate 7 of the vacuum chamber. During the movement of the heating plate 8, the ejector pin 4 is squeezed and slides inward in the sliding cavity 21 and compresses the ejector pin compression spring 3. The ejector pin 4 always keeps in contact with the wiring screw 71 under the action of the restoring force of the ejector pin compression spring 3, thereby maintaining the conductive function of the wiring ejector pin mechanism. It can be seen that the wiring ejector pin mechanism for realizing the electrical conduction between the heating plate 8 and the external power supply in the vacuum chamber has a simple structure and is easy to disassemble and assemble, thereby solving the problem of troublesome wiring in the vacuum chamber in the prior art.

[0026] The above description is only a preferred embodiment of the present invention and is 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 terminal ejector mechanism for use in a vacuum chamber, characterized in that: The invention comprises a needle tube base (1), a needle tube (2), an ejector pin compression spring (3) and an ejector pin (4); the lower end of the needle tube (2) is connected to the needle tube base (1) and a sliding cavity (21) is formed in the needle tube (2); a through hole (22) is formed on the top wall of the sliding cavity (21); the ejector pin (4) is in an inverted T shape; the large end of the ejector pin (4) matches the sliding cavity (21) and the small end matches the through hole (22); the large end of the ejector pin (4) is placed in the sliding cavity (21) so that the small end of the ejector pin (4) passes through the through hole (22); the ejector pin compression spring (3) is placed in the sliding cavity (21) and the two ends of the ejector pin compression spring (3) are respectively against the ejector pin (4) and the needle tube base (1); and a wiring screw (5) is screwed on the side wall of the needle tube (2).

2. A terminal ejector mechanism for use in a vacuum chamber according to claim 1, characterized in that: The lower end of the needle tube (2) is screwed onto the needle tube base (1).

3. A terminal ejector mechanism for use in a vacuum chamber according to claim 1, characterized in that: It also comprises an insulating seat (6), and the needle tube base (1) is connected to the insulating seat (6).

4. A terminal ejector mechanism for use in a vacuum chamber according to claim 3, characterized in that: A first countersunk hole (61) is provided on the lower surface of the insulating seat (6), a screw hole (11) aligned with the first countersunk hole (61) is provided in the needle tube base (1), and a connecting screw (62) threaded into the screw hole (11) is passed through the first countersunk hole (61).

5. A terminal ejector mechanism for use in a vacuum chamber according to claim 3 or 4, characterized in that: A plurality of second countersunk holes (63) are provided on the upper surface of the insulating seat (6), and mounting screws (64) are inserted into the second countersunk holes (63).

6. The terminal ejector mechanism for use in a vacuum chamber according to claim 1, characterized in that: The ejector pin (4) is made of brass.

Images