Plastic pipe head injection molding device

Abstract

The utility model discloses a plastic pipe head injection molding device, which relates to the technical field of injection molding devices, and comprises an injection molding pipe and an injection molding head, a sleeve is arranged between the injection molding pipe and the injection molding head, and the outer walls of the two ends of the sleeve are respectively and rotatably sleeved with the outer walls of the injection molding pipe and the injection molding head through bearings. And two scraping rods are symmetrically and fixedly arranged in the sleeve, the rod walls of the two scraping rods are attached to the inner wall of the injection molding head, a driving mechanism is arranged on the outer wall of the injection molding pipe, the pipe wall of the sleeve is fixedly sleeved with a first gear, and the first gear is in transmission connection with the driving mechanism. Through the arrangement of the two scraping rods, the inner wall of the injection molding head can be cleaned in the process that the driving mechanism drives the sleeve to rotate, and the situation that normal use of the whole device is affected after injection molding liquid is solidified due to the fact that the injection molding liquid makes contact with excessive parts is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding devices, in particular to a plastic pipe head injection molding device. Background Art

[0002] At present, in the production process of pipe fittings, the molten plastic liquid is injected into the mold through the injection molding nozzle by an injection molding machine for processing. However, after the injection molding is completed, it is easy for plastic liquid to remain in the nozzle. After cooling and solidification, it is easy to cause the injection molding nozzle to be blocked.

[0003] After searching, the publication (announcement) number is: CN215472695U. An injection nozzle and an injection molding device for the production of plastic pipe fittings, which relates to the field of injection molding devices, includes a nozzle body, an impeller is installed on the inner wall of the nozzle body, and a rotating shaft is fixedly connected to the impeller; it also includes: a first scraper, which is installed on the rotating shaft; a second scraper: its end is hinged with the end of the first scraper; an elastic reset component: it is installed between the rotating shaft and the second scraper; the first scraper and the second scraper are respectively in contact with the inner wall of the nozzle body. During injection molding, the impeller is driven to rotate by the flow of liquid, and then the impeller drives the rotating shaft to rotate, and the rotating shaft drives the first scraper and the second scraper to rotate, and then the inner wall of the injection nozzle is cleaned to avoid clogging of the injection nozzle.

[0004] The above technical solution has the following shortcomings:

[0005] When the above technical solution is used, the injection liquid will enter the interior of the sleeve, thereby affecting the normal use of the elastic reset component and further affecting the normal use of the nozzle body. Utility Model Content

[0006] In view of the above problems existing in the existing injection molding device, the present utility model is proposed.

[0007] Therefore, the purpose of the utility model is to provide a plastic pipe head injection molding device, which solves the problem that the injection liquid will enter the interior of the sleeve, thereby affecting the normal use of the elastic reset component and further affecting the normal use of the nozzle body.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A plastic tube head injection molding device comprises an injection tube and an injection molding head, wherein a sleeve is arranged between the injection tube and the injection molding head, and the outer walls at both ends of the sleeve are rotatably sleeved with the outer walls of the injection tube and the injection molding head respectively through bearings, and two scraper rods are symmetrically fixedly arranged inside the sleeve, and the rod walls of the two scraper rods are both arranged to fit the inner wall of the injection molding head, and the outer wall of the injection tube is provided with a driving mechanism, and the tube wall of the sleeve is fixedly sleeved with a first gear, and the first gear is drivingly connected to the driving mechanism.

[0010] Preferably, the driving mechanism includes a motor, a rotating rod and a second gear, a mounting bracket is fixedly provided on the outer wall of the injection molding tube, the motor is fixedly provided on the surface of the mounting bracket and the output end is fixedly connected to the second gear through the rotating rod, and the first gear is meshingly connected to the second gear.

[0011] Preferably, an insert tube is fixedly provided on the outer wall of the injection tube and the outer wall of the injection head, and a U-shaped rod is inserted between the two insert tubes.

[0012] Preferably, both of the two bearings are sealed bearings.

[0013] Preferably, two hammer blocks are symmetrically fixedly arranged on the outer wall of the injection head.

[0014] Preferably, the side walls of the two inserting tubes are provided with bolts, and the two ends of the U-shaped rod are fixedly connected to the corresponding inserting tubes through the corresponding bolts.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] The utility model can clean the inner wall of the injection head by means of two scraper rods when the driving mechanism drives the sleeve to rotate, thereby preventing the injection liquid from contacting too many parts and components and affecting the normal use of the entire device after solidification. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional connection structure of the sleeve and two scraper rods of the utility model;

[0020] Figure 3 For the utility model Figure 1 An enlarged schematic diagram of part A.

[0021] Description of reference numerals:

[0022] 1. Injection molding tube; 2. Injection molding head; 3. Sleeve; 4. Bearing; 5. Scraper rod; 6. First gear; 7. Motor; 8. Rotating rod; 9. Second gear; 10. Mounting frame; 11. Insert tube; 12. U-shaped rod; 13. Hammer block; 14. Bolt. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] The utility model embodiment discloses a plastic pipe head injection molding device.

[0025] The utility model provides Figure 1-3 A plastic tube head injection molding device shown in the figure comprises an injection tube 1 and an injection head 2, a sleeve 3 is arranged between the injection tube 1 and the injection head 2, the outer walls at both ends of the sleeve 3 are rotatably sleeved with the outer walls of the injection tube 1 and the injection head 2 respectively through bearings 4, two scraper rods 5 are symmetrically fixedly arranged inside the sleeve 3, the rod walls of the two scraper rods 5 are both arranged to fit the inner wall of the injection head 2, the outer wall of the injection tube 1 is arranged with a driving mechanism, the tube wall of the sleeve 3 is fixedly sleeved with a first gear 6, and the first gear 6 is transmission-connected with the driving mechanism, and the two scraper rods 5 can be used to clean the inner wall of the injection head 2 during the process of the driving mechanism driving the sleeve 3 to rotate, so as to avoid the injection liquid from contacting too many parts and affecting the normal use of the entire device after solidification.

[0026] like Figure 1 and Figure 3 As shown, the driving mechanism includes a motor 7, a rotating rod 8 and a second gear 9. A mounting bracket 10 is fixedly provided on the outer wall of the injection molding tube 1. The motor 7 is fixedly provided on the surface of the mounting bracket 10 and the output end is fixedly connected to the second gear 9 through the rotating rod 8. The first gear 6 is meshingly connected to the second gear 9. By utilizing the meshing connection between the first gear 6 and the second gear 9, the sleeve 3 can be driven to drive the two scraping rods 5 to rotate during the operation of the motor 7, thereby realizing the cleaning of the inner wall of the injection molding head 2.

[0027] like Figure 1 As shown, the outer wall of the injection tube 1 and the outer wall of the injection head 2 are fixedly provided with a plug 11, and a U-shaped rod 12 is inserted between the two plugs 11. The connection between the injection tube 1 and the injection head 2 can be achieved by plugging the two U-shaped rods 12 into the corresponding plugs 11, so that the injection tube 1 and the injection head 2 can remain in a relatively static state, avoiding the injection head 2 being driven to rotate during the rotation of the two scraper rods 5.

[0028] like Figure 1 and Figure 3 As shown, the two bearings 4 are sealed bearings. The sealed bearings can ensure the sealed connection between the two ends of the sleeve 3 and the injection tube 1 and the injection head 2, thereby preventing the injection liquid from leaking from the connection between the sleeve 3 and the injection tube 1 or the injection head 2.

[0029] like Figure 1As shown, two hammer blocks 13 are symmetrically fixedly arranged on the outer wall of the injection head 2. The two hammer blocks 13 can be used to knock the injection head 2 when it is necessary to disassemble it, so that the injection tube 1 and the injection head 2 can be separated easily, so as to clean the two scraper rods 5.

[0030] like Figure 1 As shown, the side walls of the two insert tubes 11 are provided with bolts 14, and the two ends of the U-shaped rod 12 are fixedly connected to the corresponding insert tubes 11 by the corresponding bolts 14. The provided bolts 14 can realize a fixed connection between the two ends of the U-shaped rod 12 and the corresponding insert tubes 11, thereby preventing the two ends of the U-shaped rod 12 from being separated from the corresponding insert tubes 11 without external force.

[0031] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A plastic pipe head injection molding device, comprising an injection molding pipe (1) and an injection molding head (2), characterized in that: A sleeve (3) is arranged between the injection molding tube (1) and the injection molding head (2); the outer walls at both ends of the sleeve (3) are rotatably sleeved with the outer walls of the injection molding tube (1) and the injection molding head (2) respectively through bearings (4); two scraper rods (5) are symmetrically fixedly arranged inside the sleeve (3); the rod walls of the two scraper rods (5) are both arranged to fit the inner wall of the injection molding head (2); the outer wall of the injection molding tube (1) is provided with a driving mechanism; the tube wall of the sleeve (3) is fixedly sleeved with a first gear (6); and the first gear (6) is drivingly connected to the driving mechanism.

2. A plastic pipe head injection molding device according to claim 1, characterized in that: The driving mechanism comprises a motor (7), a rotating rod (8) and a second gear (9); a mounting frame (10) is fixedly arranged on the outer wall of the injection molding tube (1); the motor (7) is fixedly arranged on the surface of the mounting frame (10) and the output end is fixedly connected to the second gear (9) through the rotating rod (8); and the first gear (6) is meshingly connected to the second gear (9).

3. A plastic pipe head injection molding device according to claim 1, characterized in that: The outer wall of the injection tube (1) and the outer wall of the injection head (2) are both fixedly provided with an insert tube (11), and a U-shaped rod (12) is inserted between the two insert tubes (11).

4. A plastic pipe head injection molding device according to claim 1, characterized in that: Both bearings (4) are sealed bearings.

5. A plastic pipe head injection molding device according to claim 1, characterized in that: Two hammer blocks (13) are symmetrically fixedly arranged on the outer wall of the injection head (2).

6. A plastic pipe head injection molding device according to claim 3, characterized in that: The side walls of the two inserting tubes (11) are both provided with bolts (14), and the two ends of the U-shaped rod (12) are fixedly connected to the corresponding inserting tubes (11) via corresponding bolts (14).

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