Injection nozzle mechanism of bottle cap injection molding machine for quick demolding

Abstract

The utility model provides a bottle cap injection molding machine nozzle mechanism for quick demolding, which relates to the technical field of plastic processing and comprises a push pipe, a pipe head is fixed at one end of the push pipe, an insertion opening is formed in the other end of the push pipe, a push shaft is arranged between the insertion opening and the pipe head in a penetrating manner, and a screw is fixed at one end, close to the pipe head, of the push shaft. The screw rod extends towards the pipe head end to form a column head; a pair of pump shafts are symmetrically arranged on the two sides of the push pipe, and a supporting handle is slidably arranged on the pipe head and is in sliding fit with the pump shafts; a handle frame is arranged on the push shaft in an interference manner; the injection nozzle has the beneficial effects that the pump shaft structure opposite to the feeding movement of the push shaft is arranged outside the module of the injection nozzle, and is matched with the support handle structure in sliding fit with the push pipe, so that the support handle is forced to push the push shaft of the push pipe in the reverse direction to drive the sliding shaft cylinder and the pump shaft to perform pneumatic feeding in the demolding process by utilizing the retraction of the push shaft; and demolding of the injection nozzle is completed in cooperation with the platform structure, and the demolding efficiency of the injection nozzle mechanism is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic processing, and particularly relates to a nozzle mechanism of a bottle cap injection molding machine for rapid demolding. Background Art

[0002] The bottle cap is fastened to the bottle mouth through cooperation with the bottle mouth to prevent the leakage of substances inside the bottle and the intrusion of external bacteria. After the bottle cap is tightened, the bottle mouth extends deep into the bottle cap and touches the sealing gasket. The inner groove of the bottle mouth and the thread of the bottle cap are in close contact with each other, providing pressure for the sealing surface. Several sealing structures can effectively prevent the leakage or deterioration of substances inside the bottle;

[0003] During the injection molding process, the nozzle mechanism needs to inject the injection molding material into the mold cavity by extending into the mold cavity, and complete demolding along with the platform mechanism during the retraction process. When the existing nozzle mechanism faces a mold cavity with a relatively long depth, there is a certain length difference between the length of the nozzle itself and the distance of the buffer mechanism of the nozzle during the later-stage demolding process, resulting in a demolding vacuum period of the nozzle during the later-stage platform demolding, which to a certain extent affects the efficiency of the rapid demolding process of injection molding. Summary of the Utility Model

[0004] In view of the above technical problems existing in the prior art, a nozzle mechanism of a bottle cap injection molding machine for rapid demolding is provided.

[0005] The purpose and efficacy of the utility model are achieved by the following specific technical means:

[0006] A nozzle mechanism of a bottle cap injection molding machine for rapid demolding, including a push tube, one end of the push tube is fixed with a tube head, the other end of the push tube is provided with a socket, a push shaft is arranged through between the socket and the tube head, and a screw is fixed at one end of the push shaft close to the tube head, and the screw extends towards the tube head end with a stud;

[0007] A pair of pump shafts are symmetrically arranged on both sides of the push tube, a support handle is slidably arranged on the tube head, and the support handle is slidably matched with the pump shafts;

[0008] A handle frame is arranged on the push shaft by interference fit, sliding shaft cylinders are arranged on both sides of the handle frame, a connecting rod is fixed between the sliding ends of the sliding shaft cylinders and the handle frame, and the sliding shaft cylinders are communicated with the pump shafts.

[0009] Further, a filling tube is externally connected to the push tube, the filling tube extends towards the inner end with a transfer valve port, and the transfer valve port penetrates laterally to one side of the screw.

[0010] Further, a narrow slot matching the stud is formed in the tube head.

[0011] Further, a one-way valve tube is arranged through at the connecting end of the sliding shaft cylinder and the pump shaft.

[0012] Further, both sides of the handle protrude to form a structure of a flat plate with a straight shape.

[0013] Further, a push head is fixed to the end of the pump shaft and the flat plate of the handle, and a rubber pad is filled in the push head.

[0014] Further, the sliding shaft cylinder matches the gas filling amount of the pump shaft.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] For this kind of nozzle mechanism, a pump shaft structure opposite to the feeding movement of the push shaft is arranged outside the module of the nozzle, and it cooperates with the handle structure slidably matched on the push tube to use the retraction of the push shaft to drive the sliding shaft cylinder and the pneumatic feeding of the pump shaft during the demolding process, so as to force the handle to advance reversely along the direction of the push shaft of the push tube, and cooperate with the platform structure to complete the demolding of the nozzle, thereby improving the demolding efficiency of this nozzle mechanism. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the internal planar structure of the present utility model;

[0019] Figure 3 is a schematic diagram of the side view planar structure of the sliding shaft cylinder of the present utility model.

[0020] Markings in the figure: 1 - push tube; 2 - tube head; 3 - handle; 4 - pump shaft; 5 - filling tube; 6 - adapter valve port; 7 - push shaft; 8 - handle bracket; 9 - connecting rod; 10 - sliding shaft cylinder; 11 - screw; 12 - stud; 13 - push head; 14 - one-way valve tube. Detailed Embodiment

[0021] Please refer to Figures 1 - 3 , for a further description of the embodiments of the present utility model;

[0022] A nozzle mechanism for a bottle cap injection molding machine for rapid demolding includes a push tube 1. One end of the push tube 1 is fixed with a tube head 2. An insertion port is opened at the other end of the push tube 1. A push shaft 7 is arranged through between the insertion port and the tube head 2. And a screw 11 is fixed to the end of the push shaft 7 close to the tube head 2, and the screw 11 extends towards the tube head 2 end with a stud 12;

[0023] A pair of pump shafts 4 are symmetrically arranged on both sides of the push tube 1. A handle 3 is slidably arranged on the tube head 2, and the handle 3 is slidably matched with the pump shaft 4;

[0024] An interference fit is provided with a handle holder 8 on the push shaft 7. Slide shaft cylinders 10 are provided on both sides of the handle holder 8. A connecting rod 9 is fixed between the sliding end of the slide shaft cylinder 10 and the handle holder 8, and the slide shaft cylinder 10 is communicated with the pump shaft 5.

[0025] For this nozzle mechanism, the push shaft 7 serves as the connection end between the nozzle and the feeding mechanism. The rotary feeding of the push shaft 7 will drive the screw 11 to compress the push tube 1 and the tube head 2 inward, and the injection molding material filled in the push tube 1 and the tube head 2 will be pushed out through the stud 12.

[0026] The forward rotation of the push shaft 7 will synchronously drive the handle holder 8 to advance, and use the connecting rod 9 to pull the sliding shaft end of the slide shaft cylinder 10 outward. During demolding, the retraction of the push shaft 7 will synchronously drive the handle holder 8, use the connecting rod 9 to compress the slide shaft cylinder 10 inward, and act on the pump shaft 4 through the air pressure of the slide shaft cylinder 10, forcing the pump shaft 4 to push the support handle 3 outward, and use the longitudinal external thrust of the support handle 3 to assist the nozzle to complete the rapid demolding from the mold cavity.

[0027] Compared with the traditional nozzle mechanism, this nozzle can assist the demolding process of the nozzle through the linkage - set pump shaft 4, improving the demolding efficiency.

[0028] Preferably, a filling tube 5 is externally connected to the push tube 1. The filling tube 5 extends inwardly with a transfer valve port 6, and the transfer valve port 6 penetrates laterally to one side of the screw 11. This nozzle mechanism mainly uses the filling tube 5 as the filling end of the injection molding material.

[0029] Preferably, a narrow - slot structure matching the stud 12 is formed in the tube head 2. The narrow - slot structure cooperates with the advancement of the stud 12 and the screw 11 to narrow the compression diameter of the stud 12, so as to ensure that the injection molding material can be quickly ejected through the narrow - slot structure when being pushed.

[0030] Preferably, a one - way valve tube 14 is provided through the connection end of the slide shaft cylinder 10 and the pump shaft 4. The one - way valve tube 14 serves as the pressure - relief valve port end of the pump shaft 4 to discharge the excess air pressure through the tube orifice when the one - way valve tube 14 resets.

[0031] Preferably, one - shaped plate surface structures protrude on both sides of the support handle 3. The one - shaped plate surface structure cooperates with the structure of the outer end surface of the mold cavity to complete the insertion docking, so that the nozzle can be pushed out by means of the structure of the outer end surface of the mold cavity when the support handle 3 is pushed.

[0032] Preferably, a push head 13 is fixed to the plate surface end of the pump shaft 4 and the support handle 3, and a rubber pad is filled in the push head 13. The push head 13 structure serves as the pushing end of the pump shaft 4, and the rubber pad buffers the reaction thrust when the support handle 3 contacts the outer end surface of the mold cavity, ensuring the stability of the stroke of the pump shaft 4.

[0033] Preferably, the sliding shaft cylinder 10 is matched with the filling gas volume of the pump shaft 4. With the sliding shaft cylinder 10 and the pump shaft 4 having a matched gas volume, the matching accuracy of the moving stroke between the sliding shaft cylinder 10 and the pump shaft 4 and the stability during linkage are ensured.

[0034] The implementation manner of this device is as follows:

[0035] During injection of this nozzle structure, the external feeding mechanism of the injection molding machine drives the screw 11 to compress the push tube 1 and the tube head 2 inward by rotating and pushing the push shaft 7. During this process, the injection molding material will enter the push tube 1 through the filling tube 5, and then the injection molding material filled in the push tube 1 and the tube head 2 will be pushed out through the nozzle head 12 to complete the injection molding.

[0036] During this process, the forward rotation of the push shaft 7 will synchronously drive the handle holder 8 to advance, and use the connecting rod 9 to pull the sliding shaft end of the sliding shaft cylinder 10 outward. During demolding, the backward movement of the push shaft 7 will, through the linkage of the handle holder 8, use the connecting rod 9 to compress the sliding shaft cylinder 10 inward, and through the air pressure of the sliding shaft cylinder 10 acting on the pump shaft 4, force the pump shaft 4 to push the support handle 3 outward. Since the support handle 3 is lapped on the outer end face of the mold cavity, the longitudinal outward thrust of the support handle 3 is used to assist the nozzle to complete the rapid demolding from the mold cavity.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A nozzle mechanism for a bottle cap injection molding machine for rapid demoulding, characterized in that: The push tube (1) comprises a push tube (1), a tube head (2) being fixed at one end of the push tube (1), a socket being opened at the other end of the push tube (1), a push shaft (7) being arranged between the socket and the tube head (2), a screw rod (11) being fixed at one end of the push shaft (7) close to the tube head (2), and a column head (12) extending from the screw rod (11) toward the end of the tube head (2); A pair of pump shafts (4) are symmetrically arranged on both sides of the push tube (1); a support handle (3) is slidably arranged on the tube head (2); the support handle (3) is slidably matched with the pump shaft (4); A handle frame (8) is interference-arranged on the push shaft (7), a sliding shaft cylinder (10) is arranged on both sides of the handle frame (8), a connecting rod (9) is fixed between the sliding end of the sliding shaft cylinder (10) and the handle frame (8), and the sliding shaft cylinder (10) is connected to the pump shaft (4).

2. The nozzle mechanism of a bottle cap injection molding machine for rapid demoulding according to claim 1, characterized in that: The push tube (1) is externally connected to a filling tube (5), and a transfer valve port (6) is extended to the inner end of the filling tube (5), and the transfer valve port (6) is laterally connected to one side of the screw rod (11).

3. The nozzle mechanism of a bottle cap injection molding machine for rapid demoulding according to claim 1, characterized in that: The pipe head (2) is formed with a narrow groove matching the column head (12).

4. The nozzle mechanism of a bottle cap injection molding machine for rapid demoulding according to claim 1, characterized in that: A one-way valve pipe (14) is provided through the connection end between the sliding shaft cylinder (10) and the pump shaft (4).

5. The nozzle mechanism of a bottle cap injection molding machine for rapid demoulding according to claim 1, characterized in that: The two sides of the support handle (3) are protruded to form a straight-line plate structure.

6. The nozzle mechanism of a bottle cap injection molding machine for rapid demoulding according to claim 5, characterized in that: A push head (13) is fixed to the pump shaft (4) and the plate end of the support handle (3), and a rubber pad is filled in the push head (13).

7. The nozzle mechanism of a bottle cap injection molding machine for rapid demoulding according to claim 1, characterized in that: The air filling amount of the sliding shaft cylinder (10) matches that of the pump shaft (4).

Images