Die feeding and cutting integrated mechanism

Abstract

The utility model discloses a die feeding and cutting integrated mechanism which comprises a tool apron and a cutter which are relatively and fixedly connected, the tool apron and the cutter are coaxially arranged, the tool apron is of a hollow structure, a flow channel is formed in the tool apron, a discharging port communicated with the flow channel is formed in the cutter, the discharging port is located on the outer side of the cutter in the circumferential direction, and the flow channel is communicated with the flow channel. And cutting edges are arranged on the two sides, corresponding to the discharging opening, of the cutter. By the adoption of the scheme, a feeding mechanism and a cutting mechanism are integrated, cutting is effectively reduced, meanwhile, the structure is simplified, machining and manufacturing cost is reduced, and disassembly, assembly, runner cleaning and the like are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to injection equipment field, concretely relates to a mould feed cutting integrated mechanism. BACKGROUND

[0002] In the production process of injection products, the plastic material in molten state is stirred uniformly by screw extruder at a certain temperature, and then is extruded into an injection mold, the plastic material is shaped in the cavity of the injection mold, and the shaped injection product is obtained after cooling and solidification, then the injection product is pushed out of the injection mold by a ejector pin, the patent with the patent number "201821547922.4" and the name "an injection mold with automatic cutting" mainly proposes to set the feed inlet at the bottom of the cavity, and to separate the plastic product formed in the cavity from the waste material formed in the inclined channel, upper groove, lower groove and main channel by the pushing of the cutting plate, so as to achieve the effect of automatic removal of waste material, save the process and improve the production efficiency.

[0003] However, the applicant found in the research that for injection products with complex structure, the extruded material is more, and the uniformity of injection is not guaranteed, and there are usually multiple injection ports, so if the above cutting mechanism is used, the cutting knife moves linearly, the resistance is large, which is easy to cause large tearing to the product, and further damage the surface quality of the product, it is difficult to ensure the integrity of the product, in addition, the use of independent cutting mechanism also relatively increases the complexity of the product and the manufacturing cost, etc., which is not conducive to the simplification of the structure. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a mould feed cutting integrated mechanism to solve the problems of poor injection cutting mechanism, large cutting difficulty and easy to affect the appearance quality of the product in the prior art.

[0005] The technical scheme is as follows:

[0006] A mould feed cutting integrated mechanism, the key is that: including the knife seat and the cutting knife of relative fixed connection, the knife seat and the cutting knife coaxial arrangement, and the knife seat is hollow structure, and has the runner in it, the cutting knife has the discharge port that communicates with the runner, the discharge port is located at the circumferential outside of the cutting knife, and evenly distributes along the circumferential of the cutting knife, and the cutting knife has the blade edge on the two sides corresponding the discharge port.

[0007] By using the above scheme, the runner of the knife seat can be directly connected with the feed pipe when in use, the material can enter the cavity from the discharge port, after the product is shaped and cooled, the knife seat is rotated, and the cutting knife is rotated to cut off the bonded material, and the rotation can remove the burrs of the cutting surface, which is beneficial to ensure the appearance quality of the cutting.

[0008] As preferred: the cutter seat and the cutter are detachably connected, and have mutually matched circumferential positioning structures. With the above scheme, the runner can be conveniently cleaned, and the reliability of the rotating action of the cutter is ensured.

[0009] As preferred: the discharge port extends along the axial direction of the cutter, and its lower end is flush with the end face of the cutter. With the above scheme, the cleaning of the discharge port is facilitated.

[0010] As preferred: the cutter seat has an external thread section and a polyhedral clamping section. With the above scheme, the cutter seat can be quickly disassembled and assembled, which is especially beneficial to the cutting operation and reduces the operation difficulty.

[0011] As preferred: the cutter seat is a shaft-symmetrical petal-shaped structure. With the above scheme, the runner can be further conveniently cleaned, and the maintenance is facilitated.

[0012] As preferred: the cutter has a centering hole with an open top. With the above scheme, the centering hole can be matched with a mold core of a vertical mold, the centering of the mold is ensured, the functions are diversified, and the practicability is further improved.

[0013] As preferred: the discharge port is large inside and small outside. With the above scheme, the flowability of the material when entering the cavity is ensured.

[0014] Compared with the prior art, the mold feeding and cutting integrated mechanism has the following beneficial effects:

[0015] The mold feeding and cutting integrated mechanism effectively reduces the cutting, simplifies the structure, reduces the processing and manufacturing costs, and is convenient to disassemble and assemble and clean the runner. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of the utility model;

[0017] Figure 2 is Figure 1 an exploded view;

[0018] Figure 3 is Figure 1 a sectional view;

[0019] Figure 4 is a cutter structure schematic view;

[0020] Figure 5 is Figure 4 a bottom view;

[0021] Figure 6 is an installation and use schematic view of the utility model;

[0022] Figure 7 is Figure 6 a local enlarged view of A in the middle;

[0023] Figure 8 The utility model is matched with end part mould schematically. DETAILED DESCRIPTION

[0024] The utility model will be explained further in detail below with reference to the drawings.

[0025] Reference Figures 1 to 8 The mould feeding and cutting integrated mechanism shown in the figure mainly includes the knife holder 510 and the cutting knife 520 which are fixedly connected, the knife holder 510 and the cutting knife 520 are coaxially arranged, the knife holder 510 is a hollow structure, and the knife holder 510 has a flow channel 511 in it, the cutting knife 520 has a discharge port 521 which is communicated with the flow channel 511, the discharge port 521 is located on the circumferential outside of the cutting knife 520 and is evenly distributed along the circumference of the cutting knife 520, and the cutting knife 520 has a blade edge 522 on the two sides corresponding to the discharge port 521.

[0026] The knife holder 510 and the cutting knife 520 are connected in a detachable mode and have circumferential positioning structures which cooperate with each other, specifically, the cutting knife 520 has a clamping block 523 which protrudes outward along the radial direction of the cutting knife 520 at the bottom of the cutting knife 520, the top of the knife holder 510 has a cutting knife clamping groove 512 which is arranged in one-to-one correspondence with the clamping block 523, the clamping block 523 cooperates with the cutting knife clamping groove 512 to realize the circumferential fixation of the cutting knife 520, and at the same time, the cutting knife 520 and the knife holder 510 are also axially connected and fixed through the cutting knife connecting screw 530.

[0027] In specific implementation, the discharge port 521 extends along the axial direction of the cutting knife 520, and the lower end of the discharge port 521 is flush with the end face of the cutting knife 520, in addition, the discharge port 521 is large inside and small outside along the radial direction of the discharge port 521, so that the flowability when entering the cavity can be increased.

[0028] As shown in the figures, Figure 1 and Figure 2 The knife holder 510 has an external thread section 513 and a polyhedral clamping section 514, and the external thread section 513 is close to the middle part of the knife holder 510.

[0029] In addition, the knife holder 510 is a shaft-symmetrical petal-shaped structure, the two petals are also connected and fixed through connecting screws, and the two petals can be separated when the flow channel is cleaned in the later stage, so that the cleaning efficiency in the later stage can be improved, of course, in order to prevent the difficulty of separation caused by material adhesion, an ejection hole is arranged on any petal, and the ejection hole can achieve the effect of rapid separation by using a jacking screw.

[0030] In order to further improve the function of the utility model and realize one thing with multiple uses, the cutting knife 520 has a centering hole 524 which is open at the top, and the centering hole 524 is conical.

[0031] Reference Figures 1 to 8The shown mold feeding and cutting integrated mechanism is used in the vertical mold which mainly comprises an outer mold 310, an inner mold 320, a mold core 340 and an end mold 370, and the four enclose a cavity 350, as shown, the vertical mold is supported on the mounting base 200 as a whole, the mold feeding and cutting integrated mechanism 500 of the application is installed on the end mold 370, the end mold 370 has an inner thread matched with the outer thread segment 513 on the tool holder 510, the lower end of the runner 511 is below the mounting base 200 for connecting the feeding pipe, and the discharge port 521 is at least partially communicated with the cavity 350.

[0032] The centering boss 525 is conical as shown, and the bottom of the mold core 340 has a positioning hole matched with the centering boss 525, and the centering shaft 341 is arranged in the middle of the positioning hole, and the centering seat 526 is fixed in the centering hole 524 and has a counterbore matched with the centering shaft 341, after the mold is assembled, the positioning hole is matched with the centering boss 525, and the centering shaft 341 is inserted into the center hole of the centering seat 526, thereby stabilizing the mold core 340 and the whole inner mold 320.

[0033] During the injection molding process, the material enters the cavity 350 through the feeding pipe, the runner 511 and the feeding port 521, after cooling after the injection molding is completed, the polyhedral clamping segment 514 is clamped by using the pliers, the tool holder 510 is rotated, and the cutter 520 is synchronously rotated, thereby cutting the material near the discharge port 521, and the cutting surface smoothness is improved by repeatedly cutting and grinding the cut surface by using the forward and reverse operation, after the cutting is completed, the cutter 520 and the tool holder 510 are separated, and the tool holder 510 is separated for cleaning.

[0034] Finally, it should be noted that the above description is only the preferred embodiment of the application, and those skilled in the art can make various similar expressions under the inspiration of the application without deviating from the purpose and claims of the application, and such changes fall within the protection scope of the application.

Claims

1. A mold feeding and cutting integrated mechanism, characterized in that: The application relates to a cutting seat (510) and a cutting knife (520) which are coaxially arranged and fixedly connected, wherein the cutting seat (510) is a hollow structure and has a flow channel (511) in the cutting seat (510), the cutting knife (520) has a discharging port (521) which is in communication with the flow channel (511), the discharging port (521) is located on the circumferential outer side of the cutting knife (520) and is uniformly distributed along the circumferential direction of the cutting knife (520), and the cutting knife (520) has a blade edge (522) on the two sides corresponding to the discharging port (521).

2. The integrated mold feeding and cutting mechanism of claim 1, wherein: The cutting seat (510) and the cutting knife (520) are detachably connected and have mutually matched circumferential positioning structures.

3. The integrated die feeding and cutting mechanism of claim 1 or 2, wherein: The discharging port (521) extends along the axial direction of the cutting knife (520) and the lower end of the discharging port (521) is flush with the end face of the cutting knife (520).

4. The integrated die feeding and cutting mechanism of claim 1 or 2, wherein: The cutting seat (510) has an outer threaded section (513) and a polyhedral clamping section (514).

5. The integrated mold feeding and cutting mechanism of claim 4, wherein: The cutting seat (510) is a shaft-symmetrical petal-shaped structure.

6. The integrated mold feeding and cutting mechanism of claim 1, wherein: The cutting knife (520) has a centering hole (524) with an open top.

7. The integrated mold feeding and cutting mechanism of claim 1 or 2, wherein: The discharging port (521) is large inside and small outside.

Images