Rubber injection molding machine anti-blocking nozzle structure

Abstract

The application discloses a rubber injection molding machine anti-blocking nozzle structure, which comprises an extrusion pipeline, the end face of the extrusion pipeline is formed with a jack, a folding rod assembly is slidably arranged in the jack, the folding rod assembly at least partially extends out of the jack and is connected with an arc-shaped nozzle piece structure, a plurality of the arc-shaped nozzle piece structures are surrounded to form a nozzle structure, the folding rod assembly comprises a first rod and a second rod which are hingedly connected, the second rod is slidably arranged in the jack, and the first rod is connected with the arc-shaped nozzle piece structure. The application solves the problem that when the injection molding machine stops, the residual material in the nozzle discharge hole is easily dried and blocked due to the internal temperature drop, and if the cleaning is not timely, the next operation will be affected, and the injection molding machine nozzle in the prior art is mostly in an integrated structure, and the discharge hole is small, which leads to the cleaning difficulty.

Description

Technical Field

[0001] This invention relates to rubber injection equipment, and more specifically, to an anti-clogging die head structure for a rubber injection molding machine. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection molding machines, are the main molding equipment used to produce various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds. The working principle of an injection molding machine is similar to that of a syringe; it uses the thrust of a screw (or plunger) to inject pre-plasticized molten plastic (i.e., viscous flow state) into a closed mold cavity, where it solidifies and sets to obtain the finished product. Injection molding machines have a die head structure at the end. The discharge port of the die head is relatively small. When the injection molding machine stops, the drop in internal temperature causes residual material in the discharge port to easily dry and solidify, clogging the machine. If not cleaned promptly, this will cause problems in the next operation. Currently, most injection molding machine die heads are of a single piece, and the small discharge port makes cleaning difficult. Summary of the Invention

[0003] The purpose of this invention is to provide an anti-clogging die head structure for rubber injection molding machines. This solves the problem that when the injection molding machine stops, the material remaining in the discharge hole of the die head easily dries and clogs due to the drop in internal temperature. If it is not cleaned in time, it will cause problems in the next operation. In the prior art, most injection molding machine heads are of a single structure, and the discharge hole is small, making cleaning difficult.

[0004] To achieve the above objectives, the present invention provides an anti-clogging die head structure for a rubber injection molding machine. The anti-clogging die head structure includes an extrusion pipe with an insertion hole formed on its end face. A folding rod assembly is slidably disposed within the insertion hole. The folding rod assembly extends at least partially out of the insertion hole and is connected to an arc-shaped die head plate structure. A plurality of arc-shaped die head plate structures are arranged to form a die head structure. The folding rod assembly includes a first rod and a second rod that are hinged to each other. The second rod is slidably disposed within the insertion hole, and the first rod is connected to the arc-shaped die head plate structure.

[0005] Preferably, a hinge piece is formed at the end of the first rod, and a hinge groove is formed in the second rod near the first rod, wherein the hinge piece is hinged in the hinge groove by a pin;

[0006] The hinge groove prevents the first rod from bending inward along the radial direction of the extrusion pipe.

[0007] Preferably, the surface of the extrusion pipe is recessed inward to form a sliding groove that communicates with the insertion hole, and a sliding post is connected to the second rod located in the insertion hole, the sliding post extending out of the extrusion pipe from the sliding groove.

[0008] Preferably, a locking sleeve is movably provided on the surface of the extrusion pipe near the side of the arc-shaped die head structure, and displacing the locking sleeve can press the sliding column against the end of the sliding groove.

[0009] Preferably, the surface of the extrusion pipe is formed with an external thread structure;

[0010] The inner surface of the locking sleeve is formed with an external thread structure that mates with the external thread structure.

[0011] Preferably, a spring is provided inside the socket, with one end of the spring connected to the inner wall of the socket and the other end connected to the second rod.

[0012] Preferably, long grooves are formed on both sides of the arc-shaped machine head plate structure, and sealing strips are provided in the long grooves.

[0013] Preferably, the number of the arc-shaped machine head plate structures is not less than two sets.

[0014] This invention provides an anti-clogging die head structure for a rubber injection molding machine. The anti-clogging die head structure includes an extrusion pipe with an insertion hole formed on its end face. A folding rod assembly is slidably disposed within the insertion hole. The folding rod assembly extends at least partially out of the insertion hole and is connected to an arc-shaped die head plate structure. Multiple arc-shaped die head plate structures are enclosed to form a die head structure. The folding rod assembly includes a first rod and a second rod that are hinged to each other. The second rod is slidably disposed within the insertion hole, and the first rod is connected to the arc-shaped die head plate structure. When cleaning the injection molding head is required, at least part of the folding rod assembly is pulled out of the socket. At this time, the hinge of the first and second rods is displaced out of the socket. Rotating each arc-shaped injection molding head structure opens the injection molding head, making it easier to clean the material accumulated inside. This solves the problem that when the injection molding machine stops, the material remaining in the discharge hole of the injection molding head is prone to drying and clogging due to the drop in internal temperature. If it is not cleaned in time, it will cause problems in the next operation. In addition, most injection molding machine heads in the existing technology are one-piece structures with small discharge holes, which makes cleaning difficult.

[0015] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a first structural diagram of the anti-clogging head structure of the rubber injection molding machine provided by the present invention in the open state;

[0018] Figure 2 This is a second structural diagram of the anti-clogging head structure of the rubber injection molding machine provided by the present invention in the open state;

[0019] Figure 3 This is a first structural diagram of the anti-clogging head structure of the rubber injection molding machine provided by the present invention in the closed state;

[0020] Figure 4 This is a second structural diagram of the anti-clogging head structure of the rubber injection molding machine provided by the present invention in the closed state.

[0021] Explanation of reference numerals in the attached figures

[0022] 1-Arc-shaped die head structure; 2-Extrusion pipe; 3-First rod; 4-Second rod; 5-Locking sleeve; 6-External thread structure; 7-Sliding groove; 8-Sliding column. Detailed Implementation

[0023] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0024] like Figure 1-4 As shown: This invention provides an anti-clogging die head structure for a rubber injection molding machine. The anti-clogging die head structure includes an extrusion pipe 2, with an insertion hole formed on the end face of the extrusion pipe 2. A folding rod assembly is slidably disposed within the insertion hole. The folding rod assembly extends at least partially out of the insertion hole and is connected to an arc-shaped die head plate structure 1. Multiple arc-shaped die head plate structures 1 are enclosed to form a die head structure. The folding rod assembly includes a first rod 3 and a second rod 4 that are hinged to each other. The second rod 4 is slidably disposed within the insertion hole. The first rod 3 is connected to the arc-shaped die head plate structure 1. When cleaning the injection molding head is required, at least part of the folding rod assembly is pulled out of the socket. At this time, the hinge of the first and second rods is displaced out of the socket. Rotating each arc-shaped injection molding head structure opens the injection molding head, making it easier to clean the material accumulated inside. This solves the problem that when the injection molding machine stops, the material remaining in the discharge hole of the injection molding head is prone to drying and clogging due to the drop in internal temperature. If it is not cleaned in time, it will cause problems in the next operation. In addition, most injection molding machine heads in the existing technology are one-piece structures with small discharge holes, which makes cleaning difficult.

[0025] In a preferred embodiment of the present invention, in order to limit the rotation direction of the first rod 3 so that the arc-shaped machine head plate structure 1 can rotate outward to open for subsequent cleaning, a hinge plate is formed at the end of the first rod 3, and a hinge groove is formed in the second rod 4 near the first rod 3, and the hinge plate is hinged in the hinge groove by a pin.

[0026] The hinge groove prevents the first rod 3 from bending inward along the radial direction of the extrusion pipe 2.

[0027] In a preferred embodiment of the present invention, in order to facilitate the sliding of the folding rod assembly, the surface of the extrusion pipe 2 is recessed inward to form a sliding groove 7 that communicates with the insertion hole, and a sliding post 8 is connected to the second rod 4 located in the insertion hole, the sliding post 8 extending out of the extrusion pipe 2 from the sliding groove 7.

[0028] In a preferred embodiment of the present invention, a locking sleeve 5 is movably disposed on the surface of the extrusion pipe 2 near the side of the arc-shaped die head structure 1. Displacement of the locking sleeve 5 can press the sliding column 8 against the end of the sliding groove 7. When the arc-shaped die head structures are closed together, the locking sleeve can abut against the sliding column, preventing the arc-shaped die head structures from opening during normal operation.

[0029] In a preferred embodiment of the present invention, in order to facilitate the displacement of the locking sleeve and to lock the locking sleeve onto the extrusion pipe after displacement, the surface of the extrusion pipe 2 is formed with an external thread structure 6; the inner surface of the locking sleeve 5 is formed with an external thread structure that mates with the external thread structure 6.

[0030] In a preferred embodiment of the present invention, in order to enable the second rod to return to its original position after being pulled out, a spring is provided inside the insertion hole, one end of the spring being connected to the inner wall of the insertion hole and the other end being connected to the second rod 4.

[0031] In a preferred embodiment of the present invention, in order to ensure the sealing performance of the contact surfaces of the multiple arc-shaped machine head plate structures after they are closed, long grooves are formed on both sides of the arc-shaped machine head plate structure 1, and sealing strips are provided in the long grooves.

[0032] In a preferred embodiment of the present invention, in order to facilitate cleaning after the arc-shaped machine head structure is opened, the number of arc-shaped machine head plate structures 1 is not less than 2 sets, preferably 4 sets.

[0033] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0034] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0035] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A structure for preventing blockage in a rubber injection molding machine head, characterized in that, The anti-clogging head structure of the rubber injection molding machine includes an extrusion pipe (2), the end face of which is formed with an insertion hole, and a folding rod assembly is slidably disposed in the insertion hole. The folding rod assembly extends at least partially out of the insertion hole and is connected to an arc-shaped head plate structure (1). Multiple arc-shaped head plate structures (1) are enclosed to form a head structure. The folding rod assembly includes a first rod (3) and a second rod (4) that are hinged to each other. The second rod (4) is slidably disposed in the insertion hole. The first rod (3) is connected to the arc-shaped head plate structure (1). A hinge plate is formed at the end of the first rod (3). A hinge groove is formed in the second rod (4) near the first rod (3). The hinge plate is hinged in the hinge groove by a pin. The hinge groove can prevent the first rod (3) from bending inward along the radial direction of the extrusion pipe (2); the surface of the extrusion pipe (2) is recessed inward to form a sliding groove (7) that communicates with the insertion hole, and a sliding column (8) is connected to the second rod (4) located in the insertion hole. The sliding column (8) extends out of the extrusion pipe (2) from the sliding groove (7); a locking sleeve (5) is movably provided on the side of the surface of the extrusion pipe (2) near the arc-shaped die head structure (1). Displacing the locking sleeve (5) can press the sliding column (8) against the end of the sliding groove (7).

2. The anti-clogging head structure for a rubber injection molding machine according to claim 1, characterized in that, The surface of the extrusion pipe (2) is formed with an external thread structure (6); The inner surface of the locking sleeve (5) is formed with an external thread structure that mates with the external thread structure (6).

3. The anti-clogging head structure for a rubber injection molding machine according to claim 2, characterized in that, A spring is provided inside the socket, with one end of the spring connected to the inner wall of the socket and the other end connected to the second rod (4).

4. The anti-clogging head structure for a rubber injection molding machine according to claim 1, characterized in that, The arc-shaped machine head plate structure (1) has long grooves formed on both sides, and a sealing strip is provided in the long groove.

5. The anti-clogging head structure for a rubber injection molding machine according to claim 1, characterized in that, The number of the arc-shaped machine head plate structure (1) is not less than 2 sets.

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