Feeding adjusting device for injection molding machine

Abstract

The utility model relates to a feed adjusting device for an injection molding machine, which comprises a support, an injection molding pipe mounted at the top of the support, and a feed box mounted on one side of the support and positioned above the injection molding pipe, a feed cylinder communicated with the feed box is mounted on one side of the feed box, a screw rod is rotatably connected inside the injection molding pipe, and the screw rod is rotatably connected with the support. A screw rod is arranged in the injection molding pipe, a driving motor for driving the screw rod to rotate is arranged outside the injection molding pipe, the bottom of the feeding box is communicated with the injection molding pipe through a feeding pipe, a baffle is arranged in the feeding box, and a plurality of feeding ports are formed in the baffle. And when the number of the opened feeding ports is large, the feeding amount can be increased, and when the number of the opened feeding ports is small, the feeding amount can be reduced, so that different products can be produced, and more convenience is provided for people to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molding machines, and particularly relates to a feed regulating device for injection molding machines. Background Art

[0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment that uses plastic molding molds to make plastic products of various shapes of thermoplastics or thermosetting plastics. It is divided into vertical, horizontal and all-electric types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it ejected and fill the mold cavity.

[0003] During the use of the injection molding machine, in order to ensure that the plastic is evenly filled in the mold and avoid insufficient or excessive filling, thereby ensuring that the size, appearance and physical properties of the product meet the requirements, it is necessary to adjust the amount of material entering the injection molding machine through the feed adjustment device. Existing injection molding machines are generally unable to control the amount of feed during use. When producing different products, the feed amount needs to be adjusted according to the needs of the specific products. Too much or too little feed will cause defects in the molded products, such as nodules, bubbles and other problems, and may even cause the product to be unable to be produced. Adjusting the feed amount is the key to ensuring product quality and production efficiency. Utility Model Content

[0004] The purpose of the present invention is to provide a feed regulating device for an injection molding machine with a simple structure and reasonable design in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] The feed regulating device for an injection molding machine comprises a bracket, an injection molding tube installed on the top of the bracket, and a feed box installed on one side of the bracket and located above the injection molding tube, the bottom of the feed box is connected to the injection molding tube through the feed tube, a baffle is installed inside the feed box, a plurality of feed ports are provided on the baffle, a plurality of baffle assemblies used in conjunction with the feed ports are installed at the bottom of the baffle, the baffle assembly comprises an intercepting plate located below the baffle and used to block the feed port, and two groups of elastic assemblies installed below the baffle and located on both sides of the feed port and used in conjunction with the intercepting plate, one end of the intercepting plate extends to the outside of the feed box and is rotatably connected to a card plate, a limiting plate used in conjunction with the card plate is installed on the outside of the feed box, a card slot used in conjunction with the card plate is provided on one side of the limiting plate, and a discharge mechanism is provided in each of the plurality of feed ports.

[0007] As a further optimization scheme of the utility model, the top of the baffle is provided with a taper-shaped material guide plate, the top of the material guide plate is rotatably connected with a rotating rod extending to the top of the feeding box, a plurality of crushing knives are mounted on the outside of the rotating rod, a mounting bracket is mounted on the top of the feeding box, and a rotary motor for driving the rotating rod to rotate is mounted on the top of the mounting bracket.

[0008] As a further optimization scheme of the utility model, the inside of the feeding box is provided with a filter screen above the baffle, the plurality of crushing knives are located above the filter screen, and a plurality of scraper plates are mounted on the outside of the rotating rod and attached to the top of the filter screen.

[0009] As a further optimization scheme of the utility model, the feeding mechanism comprises a conveying roller in a spiral structure in the feeding port and a rotating rod mounted on the top of the conveying roller, the top end of the rotating rod extends to the top of the feeding box and is provided with a driven wheel, and a driving wheel is mounted on the outside of the rotating rod and engages with the driven wheel above the feeding box.

[0010] As a further optimization scheme of the utility model, a screw rod is rotatably connected in the inside of the injection molding pipe, and a driving motor for driving the screw rod to rotate is mounted on the outside of the injection molding pipe.

[0011] As a further optimization scheme of the utility model, the elastic mechanism comprises a strip-shaped slot opened in the bottom of the baffle, a limiting rod mounted in the inside of the strip-shaped slot, and a limiting block slidingly connected to the outside of the limiting rod and fixedly connected to the top of the intercepting plate, a spring is sleeved on the outside of the limiting rod, and the two ends of the spring are fixedly connected with one side of the limiting block and the inner wall of the strip-shaped slot.

[0012] As a further optimization scheme of the utility model, a feeding cylinder communicating with the feeding box is mounted on one side of the feeding box and located above the filter screen.

[0013] The utility model discloses the beneficial effect lies in: the utility model discloses the process of using can control the number of feeding port opening according to the product of production, when the number of feeding port opening is more, the feeding amount will increase, when the number of feeding port opening is less, the feeding amount will reduce, thereby can produce different products, make people use more conveniently. ACCURATE DRAWINGS

[0014] Figure 1 It is the overall structure schematic diagram of the utility model;

[0015] Figure 2 It is the side view cross section structure schematic diagram of the feeding box of the utility model;

[0016] Figure 3 It is the first overhead cross section structure schematic diagram of the feeding box of the utility model;

[0017] Figure 4 is the second overhead sectional structure schematic view of the feeding box of the utility model;

[0018] Figure 5 is the utility model Figure 3 A place enlarged view in the middle;

[0019] Figure 6 is the utility model Figure 4 B place enlarged view in the middle.

[0020] In the figure: 1, support; 2, injection tube; 3, feeding box; 4, baffle; 5, feed inlet; 6, guide plate; 7, rotating rod; 8, filter screen; 9, crushing knife; 10, scraper; 11, conveying roller; 12, rotating rod; 13, driven wheel; 14, driving wheel; 15, mounting bracket; 16, intercepting plate; 17, clamping plate; 18, limiting plate; 19, clamping groove; 20, strip slot; 21, limiting rod; 22, limiting block; 23, spring; 24, feeding cylinder. DETAILED DESCRIPTION

[0021] The following further describes the present application in detail with reference to the drawings, and it is necessary to point out here that the following detailed description is only used to further illustrate the present application, and cannot be understood as limiting the scope of protection of the present application, and those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0022] Example 1

[0023] As Figures 1-6The utility model discloses a feed adjusting device for injection molding machine, including support 1, install the injection tube 2 of support 1 top and install the feed tank 3 of support 1 one side and be located injection tube 2 top, one side installation of feed tank 3 with feed cylinder 24 that communicates with feed tank 3, the inside rotation of injection tube 2 is connected with screw rod, and the outside of injection tube 2 is installed drive motor that drives screw rod rotation, and the bottom of feed tank 3 is communicated with injection tube 2 through feed pipe, and the inside installation of feed tank 3 has baffle 4, and a plurality of feed ports 5 are set up on baffle 4, and a plurality of with feed port 5 cooperation uses the material blocking assembly of baffle 4 bottom, and material blocking assembly includes the intercepting plate 16 located baffle 4 below and is used to the plugging of feed port 5, and two sets of elastic components are installed baffle 4 below and are located feed port 5 both sides and cooperate with intercepting plate 16, and one end of intercepting plate 16 extends to the outside of feed tank 3 and is rotationally connected with clamping plate 17, and the outside installation of feed tank 3 is with clamping plate 17 cooperation uses the limiting plate 18, and the one side of limiting plate 18 is set up with clamping plate 17 cooperation uses the clamping groove 19, and elastic mechanism includes the strip slot 20 set up in baffle 4 bottom, and the limiting rod 21 is installed in the strip slot 20 inside, and the limiting block 22 is slidably connected in limiting rod 21 outside and is fixedly connected with the top of intercepting plate 16, and the outside of limiting rod 21 is equipped with spring 23, and the both ends of spring 23 are fixedly connected with the one side of limiting block 22 and the inner wall of strip slot 20 respectively,

[0024] A plurality of feed ports 5 are provided with a discharging mechanism, the discharging mechanism includes a conveying roller 11 in the feed port 5 and a rotating rod 12 installed on the top of the conveying roller 11, the top of the guide plate 6 is rotationally connected with a rotating rod 7 extending to the top of the feed tank 3, the top of the mounting bracket 15 is provided with a rotating motor driving the rotating rod 7 to rotate, the top end of the rotating rod 12 extends to the top of the feed tank 3 and is provided with a driven wheel 13, the outside of the rotating rod 7 is provided with a driving wheel 14 above the feed tank 3 and engaged with the driven wheel 13, when feeding, the rotating motor drives the rotating rod 7 to rotate, which drives the driving wheel 14 to rotate, under the engagement of the driving wheel 14 and the plurality of driven wheels 13, the plurality of rotating rods 12 rotate, which drives the conveying roller 11 in the feed port 5 to rotate, thereby conveying the material and preventing the material from blocking the feed port during discharging, affecting the feeding effect;

[0025] When the material port 5 needs to be closed, the card plate 17 is pulled out from the inside of the card slot 19, and then the card plate 17 is rotated to move the card plate 17 to the side where the limit plate 18 does not interfere, and the card plate 17 is released. Under the action of the elastic force of the spring 23, the card plate 17 will be moved into the feed box 3 again, thereby blocking the material port 5. In this way, the opening number of the material port can be adjusted according to the products produced, thereby adjusting the feed amount.

[0026] Example 2

[0027] like Figure 2 As shown, the difference between this embodiment and embodiment 1 is that: a guide plate 6 with a conical structure is installed on the top of the baffle 4, and the guide plate 6 is inclined from the middle to one side of the multiple feed ports 5, so that loading can be better carried out, multiple crushing knives 9 are installed on the outside of the rotating rod 7, and a mounting frame 15 is installed on the top of the feed box 3. A filter screen 8 located above the baffle 4 is installed inside the feed box 3, and the feed barrel 24 and multiple crushing knives 9 are all located above the filter screen 8. A plurality of scrapers 10 that fit the top of the filter screen 8 are installed on the outside of the rotating rod 7.

[0028] The further improved feature of this embodiment is that when the rotating rod 7 rotates, it will drive multiple crushing knives 9 to rotate, and the multiple crushing knives 9 will crush the material entering the feed box 3. During the crushing process, the material will be filtered through the filter screen 8, thereby reducing the problem of uniform melting and flow of the material due to agglomeration, which leads to defects on the surface of the plastic product. At the same time, when the filter screen 8 is filtering, the multiple scrapers 10 will rotate driven by the rotating rod 7, so that the material located on the inner wall of the bottom of the scraper 10 can be scraped up, so that it can contact the crushing knife 9 at the bottom, better crushing, and at the same time reduce the clogging of the filter screen 8.

[0029] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A feeding adjusting device for injection molding machine, comprising a support (1), an injection tube (2) installed on the top of the support (1), and a feeding box (3) installed on one side of the support (1) and above the injection tube (2), characterized in that, The bottom of the feeding box (3) is communicated with the injection tube (2) through a feeding pipe, a baffle (4) is installed in the feeding box (3), a plurality of feeding ports (5) are formed in the baffle (4), a plurality of baffle components used in cooperation with the feeding ports (5) are installed at the bottom of the baffle (4), the baffle components comprise an intercepting plate (16) located below the baffle (4) and used for plugging the feeding ports (5), and two groups of elastic components installed below the baffle (4) and located on both sides of the feeding ports (5) and used in cooperation with the intercepting plate (16), one end of the intercepting plate (16) extends to the outside of the feeding box (3) and is rotationally connected with a clamping plate (17), a limiting plate (18) used in cooperation with the clamping plate (17) is installed outside the feeding box (3), a clamping groove (19) used in cooperation with the clamping plate (17) is formed in one side of the limiting plate (18), and a plurality of the feeding ports (5) are all provided with a discharging mechanism.

2. The feed regulating device for an injection molding machine according to claim 1, characterized by: A guide plate (6) in a conical structure is installed at the top of the baffle (4), a rotating rod (7) extending to the top of the feeding box (3) is rotationally connected to the top of the guide plate (6), a plurality of crushing knives (9) are installed outside the rotating rod (7), and a mounting frame (15) is installed at the top of the feeding box (3), a rotary motor driving the rotating rod (7) to rotate is installed at the top of the mounting frame (15).

3. The feed regulating device for an injection molding machine according to claim 2, characterized in that: A filter screen (8) located above the baffle (4) is installed in the feeding box (3), and a plurality of the crushing knives (9) are all located above the filter screen (8), a plurality of scraper plates (10) abutting the top of the filter screen (8) are installed outside the rotating rod (7).

4. The feed regulating device for an injection molding machine according to claim 2, characterized by: The discharging mechanism comprises a conveying roller (11) in a spiral structure located in the feeding port (5), and a rotating rod (12) installed at the top of the conveying roller (11), the top end of the rotating rod (12) extends to the top of the feeding box (3) and is provided with a driven wheel (13), and a driving wheel (14) located above the feeding box (3) and engaged with the driven wheel (13) is installed outside the rotating rod (7).

5. The feed regulating device for an injection molding machine according to claim 1, characterized by: A screw rod is rotationally connected inside the injection tube (2), and a driving motor driving the screw rod to rotate is installed outside the injection tube (2).

6. The feed regulating device for an injection molding machine according to claim 1, characterized by: The elastic component comprises a strip-shaped groove (20) formed in the bottom of the baffle (4), a limiting rod (21) installed inside the strip-shaped groove (20), and a limiting block (22) slidingly connected outside the limiting rod (21) and fixedly connected with the top of the intercepting plate (16), a spring (23) is sleeved outside the limiting rod (21), and the two ends of the spring (23) are fixedly connected with one side of the limiting block (22) and the inner wall of the strip-shaped groove (20) respectively.

7. The feed regulating device for an injection molding machine according to claim 1, characterized by: A feeding cylinder (24) communicated with the feeding box (3) is installed at one side of the feeding box (3), and the feeding cylinder (24) is located above the filter screen (8).

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