Rapid and accurate feeding mechanism of injection molding machine

Abstract

A rapid and accurate feeding mechanism of an injection molding machine comprises a screening box, a feeding adjusting assembly, a screening mechanism and a smashing mechanism, a material opening is formed in the upper end of the screening box, the feeding adjusting assembly is installed at the upper end of the screening box, the feeding adjusting assembly comprises a feeding hopper, the feeding hopper is fixedly connected to the upper end of the screening box, and the smashing mechanism is installed on the screening mechanism. The lower end of the feeding hopper is movably connected with a blocking plate, the screening mechanism is installed in the screening box and comprises a screen, and the screen is slidably connected into the screening box. By arranging the feeding adjusting assembly, a blocking plate can rotate to adjust the size of an opening in the lower end of the feeding hopper, the discharging flow of plastic particles is controlled, the continuity and stability of the discharging amount are ensured, and the phenomenon that raw materials are accumulated or broken in a traditional feeding mode is avoided; therefore, the stability and controllability of the injection molding process are improved, and subsequent screening operation is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding machine feed technology field, concretely relates to a kind of quick and accurate feeding mechanism of injection molding machine. BACKGROUND

[0002] Injection molding machine is also known as injection molding machine or injection machine.It is the main molding equipment for thermoplastic or thermosetting plastic to be made into various shapes of plastic products using plastic molding die, divided into vertical, horizontal, all-electric, injection molding machine can heat plastic, melt plastic is applied high pressure, so that it fills the mold cavity, in the production process of injection molding machine, the accurate feeding of raw material is the key link to ensure product quality and production efficiency.The feeding mechanism of traditional injection molding machine often uses simple vibration feeding or screw conveying mode, although these modes can meet production requirements to some extent, but there are many deficiencies.

[0003] Firstly, the traditional feeding mechanism cannot realize the adjustment of raw material flow, which leads to unstable discharge amount, and further affects the production efficiency of injection molding machine and product consistency, secondly, the traditional feeding mechanism has poor screening effect on raw material, and cannot effectively remove impurities and large particle materials, which will cause mold blockage, product defects and other problems frequently in injection molding process, seriously affecting product quality. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, a kind of quick and accurate feeding mechanism of injection molding machine is provided, which solves the problems of the above method to realize the adjustment of raw material flow and poor screening effect on raw material.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] A kind of quick and accurate feeding mechanism of injection molding machine, including screening box, feed adjustment assembly, screening mechanism and crushing mechanism, the upper end of the screening box is provided with a material port, the feed adjustment assembly is installed at the upper end of the screening box, the feed adjustment assembly includes a feeding hopper, the feeding hopper is fixedly connected to the upper end of the screening box, the lower end of the feeding hopper is movably connected with a blocking plate, the screening mechanism is installed inside the screening box, the screening mechanism includes a screen, the screen is slidably connected inside the screening box, the crushing mechanism is installed on the right side of the screening box, the crushing mechanism includes a crushing box, the inside of the crushing box is rotatably connected with a drive shaft, the outside of the drive shaft is fixedly connected with a crushing knife.

[0007] Preferably, the lower end of the feeding hopper is fixedly connected with a mounting plate on the outside, the inside of the mounting plate is rotatably connected with a rotating shaft, and the lower end of the rotating shaft is fixedly connected with a blocking plate.

[0008] Preferably, the outer side of the feeding hopper is fixedly provided with a servo motor through a cross plate, the output end of the servo motor is fixedly connected with a driving gear, and the upper end of the rotating shaft is fixedly connected with a driven gear engaged with the driving gear.

[0009] Preferably, the screening mechanism further comprises a driving rod and a sliding block, the sliding block is slidably connected to the right side of the screening box, the sliding block is fixedly connected with the screen, and the driving rod is fixedly connected to the right side of the sliding block.

[0010] Preferably, the screening mechanism further comprises a first driving motor, the first driving motor is fixedly installed on the right side of the screening box through a cross plate, the output end of the first driving motor is fixedly connected with a driving roller, the outer side of the driving roller is provided with a track groove, the track groove is connected at the head and tail, and the driving rod is slidably connected with the track groove.

[0011] Preferably, the inner wall of the screening box is fixedly connected with two groups of sliding rails, and the screen is slidably connected to the upper end of the sliding rails.

[0012] Preferably, the upper end of the crushing box is fixedly provided with a second driving motor, the output end of the second driving motor extends into the interior of the crushing box and is fixedly connected with a driving shaft, the lower end of the crushing box is fixedly connected with a connecting pipe, and the end of the connecting pipe away from the crushing box is connected with the screening box.

[0013] Preferably, the left side of the screening box is provided with a treatment groove, the left side of the screening box is fixedly connected with a collecting hopper, and the lower end of the collecting hopper is fixedly connected to the upper end of the crushing box.

[0014] Preferably, the lower end of the screening box is fixedly connected with a discharge hopper, and the lower end of the discharge hopper is fixedly connected with a discharge pipe.

[0015] Compared with the prior art, the beneficial effects of the utility model lie in that the feeding adjusting assembly is arranged, the blocking plate can rotate to adjust the opening size of the lower end of the feeding hopper, the flow of the plastic particle discharge is controlled, the continuity and stability of the discharge amount are ensured, the raw material accumulation or the discharge interruption in the traditional feeding mode is avoided, the stability and controllability of the injection molding process are improved, and the subsequent screening operation is facilitated.

[0016] The screening mechanism and the crushing mechanism are arranged, the reciprocating sliding screen design can more effectively screen the raw materials, remove impurities and large particle materials, the screening efficiency is improved, the quality of the injection molding products is significantly improved, the mold blockage and product defects caused by the raw material problems are reduced, the unqualified materials that do not pass the screen can be crushed into the required particle size and are re-conveyed back to the screening box for reuse. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic view of the overall structure of the present application;

[0018] Figure 2 is a schematic view of the structure of the present application from another perspective;

[0019] Figure 3 is a schematic view of the structure of the feed adjusting assembly of the present application;

[0020] Figure 4 is a schematic view of the internal structure of the screening box of the present application;

[0021] Figure 5 is a schematic view of the screening mechanism structure of the present application;

[0022] Figure 6 is a schematic view of the partial structure of the screening mechanism of the present application;

[0023] Figure 7 is a schematic view of the crushing mechanism structure of the present application.

[0024] Reference numerals in the drawings are:

[0025] 1, screening box; 101, material inlet; 102, material collecting hopper; 103, discharging hopper; 104, discharging pipe; 105, treatment tank; 106, sliding rail;

[0026] 2, feed adjusting assembly; 201, feeding hopper; 202, blocking plate; 203, mounting plate; 204, rotating shaft; 205, driven gear; 206, servo motor; 207, driving gear;

[0027] 3, screening mechanism; 301, screen; 302, first driving motor; 303, driving roller; 304, track groove; 305, driving rod; 306, sliding block;

[0028] 4, crushing mechanism; 401, crushing box; 402, second driving motor; 403, driving shaft; 404, crushing knife; 405, connecting pipe. DETAILED DESCRIPTION

[0029] The following description is provided to enable any person skilled in the art to practice the present application. The preferred embodiments of the present application described below are only examples of the present application and other obvious modifications are possible.

[0030] Example 1

[0031] Please refer to Figures 1-7As shown, a kind of quick and accurate feeding mechanism of injection molding machine, including screening box 1, feed adjusting assembly 2, screening mechanism 3 and crushing mechanism 4, the upper end of screening box 1 is provided with material port 101, feed adjusting assembly 2 is installed in the upper end of screening box 1, feed adjusting assembly 2 includes upper hopper 201, upper hopper 201 is fixedly connected to the upper end of screening box 1, the lower end of upper hopper 201 is movably connected with obturator 202, screening mechanism 3 is installed in the inside of screening box 1, screening mechanism 3 includes screen 301, screen 301 is slidably connected to the inside of screening box 1, crushing mechanism 4 is installed to the right side of screening box 1, and crushing mechanism 4 includes crushing box 401, the inner side of crushing box 401 is rotatably connected with driving shaft 403, and the outer side of driving shaft 403 is fixedly connected with crushing cutter 404.

[0032] In the scheme, after raw material enters upper hopper 201, the position of obturator 202 can be adjusted to control the flow of raw material into screening box 1, to realize the adjustment of discharge amount, the continuity and stability of screening and crushing process, and to improve the screening effect of plastic particles.

[0033] Further, screen 301 can reciprocate in the inside of screening box 1, so as to screen plastic particles falling into the inside of screening box 1, qualified material continues to flow downward through screen 301, and unqualified material not passing through screen 301 is transported to crushing mechanism 4, in crushing box 401, driving shaft 403 drives crushing cutter 404 to rotate at high speed, and unqualified material is crushed into particles of required size, to ensure the quality of injection molding product.

[0034] Further, the crushed material is retransported to the bottom of screening box 1 and transported to injection molding machine below screening box 1 for processing.

[0035] Please refer to Figure 3 As shown, the lower end of upper hopper 201 is fixedly connected with mounting plate 203, the inside of mounting plate 203 is rotatably connected with rotating shaft 204, and the lower end of rotating shaft 204 is fixedly connected with obturator 202.

[0036] The outer side of upper hopper 201 is fixedly installed with servo motor 206 through horizontal plate, the output end of servo motor 206 is fixedly connected with driving gear 207, and the upper end of rotating shaft 204 is fixedly connected with driven gear 205 engaged with driving gear 207.

[0037] Further, the servo motor 206 is electrically connected with the external power supply, the servo motor 206 can drive the driving gear 207 to rotate, and then drive the driven gear 205 to rotate the rotating shaft 204, at the same time, drive the blocking plate 202 to close or open the lower end outlet of the feeding hopper 201, by controlling the size of the lower end opening of the feeding hopper 201 through the blocking plate 202, the flow rate of the plastic particles is controlled, and the poor screening effect caused by too much plastic particles is prevented.

[0038] Please refer to Figures 4-6 The screening mechanism 3 further includes a driving rod 305 and a sliding block 306, the sliding block 306 is slidingly connected to the right side of the screening box 1, the sliding block 306 is fixedly connected with the screen 301, and the driving rod 305 is fixedly connected to the right side of the sliding block 306.

[0039] The screening mechanism 3 further includes a first driving motor 302, the first driving motor 302 is fixedly installed on the right side of the screening box 1 through a horizontal plate, the output end of the first driving motor 302 is fixedly connected with a driving roller 303, the outer side of the driving roller 303 is provided with a track groove 304, the track groove 304 is connected at both ends, and the driving rod 305 is slidingly connected with the track groove 304.

[0040] The inner side wall of the screening box 1 is fixedly connected with two groups of sliding rails 106, and the screen 301 is slidingly connected to the upper end of the sliding rail 106.

[0041] Further, when the screening operation needs to be started, the first driving motor 302 is started, and the driving roller 303 is driven to rotate synchronously, and the track groove 304 on the outer side thereof also rotates, since the track groove 304 is connected at both ends, and the driving rod 305 is slidingly connected with the track groove 304, the driving rod 305 will slide along the track of the track groove 304 with the rotation of the track groove 304, the sliding of the driving rod 305 drives the sliding block 306 fixedly connected therewith to reciprocate, since the sliding block 306 is fixedly connected with the screen 301, the screen 301 will also reciprocate on the sliding rail 106 with the reciprocating movement of the sliding block 306, so that the material can be more fully contacted with the screen 301, thereby realizing more effective screening.

[0042] Please refer to Figure 4 and Figure 7 As shown in the figure, the upper end of the crushing box 401 is fixedly installed with a second driving motor 402, the output end of the second driving motor 402 extends to the inside of the crushing box 401 and is fixedly connected with a driving shaft 403, the lower end of the crushing box 401 is fixedly connected with a connecting pipe 405, and the end of the connecting pipe 405 away from the crushing box 401 is connected with the screening box 1.

[0043] The left side of the screening box 1 is provided with a treatment groove 105, the left side of the screening box 1 is fixedly connected with a collecting hopper 102, and the lower end of the collecting hopper 102 is fixedly connected to the upper end of the crushing box 401.

[0044] Further, the second drive motor 402 can drive the drive shaft 403 to rotate, and the unqualified material (i.e. the raw material with large particles) enters the collecting hopper 102 through the treatment tank 105 and is transported to the crushing box 401 for crushing operation, and the crushed raw material is transported to the inside of the screening box 1 through the connecting pipe 405.

[0045] Please refer to Figure 2 The lower end of the screening box 1 is fixedly connected with the discharge hopper 103, and the lower end of the discharge hopper 103 is fixedly connected with the discharge pipe 104, and the crushed plastic particles and the qualified raw material are transported to the injection molding machine through the discharge hopper 103 and the discharge pipe 104, so as to ensure the quality of the injection molding product.

[0046] The working principle and use process of the utility model are as follows: firstly, the raw material is put into the feeding hopper 201, then the servo motor 206 is started to drive the driving gear 207 to rotate, and the driving shaft 204 and the blocking plate 202 are driven to rotate through the driven gear 205, the position of the blocking plate 202 is adjusted to control the flow of the raw material entering the screening box 1, and the continuity and stability of the discharging amount are ensured, the raw material enters the screening box 1 from the feeding hopper 201 and the material port 101, at this time, the first drive motor 302 is started to drive the driving roller 303 to rotate, the driving rod 305 slides in the track groove 304, and the screen 301 reciprocates on the sliding rail 106 through the sliding block 306, the qualified material continues to flow downward through the screen 301, and the unqualified material (large particle raw material) that does not pass through the screen 301 enters the collecting hopper 102 from the left treatment tank 105 and is transported to the inside of the crushing box 401, at the same time, the second drive motor 402 is started to drive the drive shaft 403 and the crushing knife 404 to rotate at high speed, the unqualified material is crushed into particles with required size, the crushed material is retransported to the inside of the screening box 1 through the connecting pipe 405, the qualified material and the qualified material after crushing are output to the injection molding machine through the discharge hopper 103 and the discharge pipe 104 at the lower end of the screening box 1 for processing, and the quality of the injection molding product is ensured.

[0047] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The protection scope required by the utility model is defined by the appended claims and their equivalents.

Claims

1. A rapid and accurate feeding mechanism of an injection molding machine, comprising a screening box (1), a feeding adjusting assembly (2), a screening mechanism (3) and a crushing mechanism (4), characterized in that: The upper end of the screening box (1) is provided with a feeding port (101), the feeding adjusting assembly (2) is installed at the upper end of the screening box (1), the feeding adjusting assembly (2) comprises an upper hopper (201), the upper hopper (201) is fixedly connected to the upper end of the screening box (1), the lower end of the upper hopper (201) is movably connected with a blocking plate (202), the screening mechanism (3) is installed in the screening box (1), the screening mechanism (3) comprises a screen (301), the screen (301) is movably connected in the screening box (1), the crushing mechanism (4) is installed on the right side of the screening box (1), the crushing mechanism (4) comprises a crushing box (401), the inner side of the crushing box (401) is rotatably connected with a drive shaft (403), the outer side of the drive shaft (403) is fixedly connected with a crushing knife (404).

2. The quick and precise material feeding mechanism of an injection molding machine according to claim 1, wherein: The outer side of the lower end of the upper hopper (201) is fixedly connected with a mounting plate (203), the inner side of the mounting plate (203) is rotatably connected with a rotating shaft (204), and the lower end of the rotating shaft (204) is fixedly connected with the blocking plate (202).

3. The quick and precise material feeding mechanism of an injection molding machine according to claim 2, wherein: The outer side of the upper hopper (201) is fixedly connected with a servo motor (206) through a cross plate, the output end of the servo motor (206) is fixedly connected with a driving gear (207), and the upper end of the rotating shaft (204) is fixedly connected with a driven gear (205) engaged with the driving gear (207).

4. The quick and precise material feeding mechanism of an injection molding machine according to claim 1, wherein: The screening mechanism (3) further comprises a driving rod (305) and a sliding block (306), the sliding block (306) is movably connected to the right side of the screening box (1), the sliding block (306) is fixedly connected with the screen (301), and the driving rod (305) is fixedly connected to the right side of the sliding block (306).

5. The quick and precise material feeding mechanism of an injection molding machine according to claim 4, wherein: The screening mechanism (3) further comprises a first driving motor (302), the first driving motor (302) is fixedly installed on the right side of the screening box (1) through a cross plate, the output end of the first driving motor (302) is fixedly connected with a driving roller (303), the outer side of the driving roller (303) is provided with a track groove (304), the track groove (304) is connected in a loop, and the driving rod (305) is movably connected with the track groove (304).

6. The quick and precise material feeding mechanism of an injection molding machine according to claim 1, wherein: The inner side wall of the screening box (1) is fixedly connected with two groups of sliding rails (106), and the screen (301) is movably connected to the upper end of the sliding rail (106).

7. The quick and precise material feeding mechanism of an injection molding machine according to claim 1, wherein: The upper end of the crushing box (401) is fixedly connected with a second driving motor (402), the output end of the second driving motor (402) extends into the crushing box (401) and is fixedly connected with the drive shaft (403), the lower end of the crushing box (401) is fixedly connected with a connecting pipe (405), and one end of the connecting pipe (405) away from the crushing box (401) is connected with the screening box (1).

8. The quick and precise material feeding mechanism of an injection molding machine according to claim 1, wherein: The left side of the screening box (1) is provided with a treatment tank (105), the left side of the screening box (1) is fixedly connected with a collecting hopper (102), and the lower end of the collecting hopper (102) is fixedly connected to the upper end of the crushing box (401).

9. The quick and precise material feeding mechanism of an injection molding machine according to claim 1, wherein: The lower end of the screening box (1) is fixedly connected with a discharge hopper (103), and the lower end of the discharge hopper (103) is fixedly connected with a discharge pipe (104).

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