Automatic feeding structure for injection molding machine

Abstract

The utility model relates to the field of injection molding machines, in particular to an automatic feeding structure for an injection molding machine, which comprises a main body structure, when raw materials of the injection molding machine are automatically and quantitatively fed, the raw materials are guided into a protective shell through a feeding hopper, and when a first electric push rod is located at the rightmost end, a second electric push rod is located at the rightmost end. An injection molding raw material in a feeding hopper enters a quantitative container of a quantitative structure through a through hole, after the quantitative container is filled with the injection molding raw material, a push plate pushes a sliding baffle towards the left side through extension of a first electric push rod, and at the moment, a spring structure is in a compressed state; when a container cover at the lower end of the quantitative container slides to the left end of the fixed baffle, the container cover losing the blocking effect of the fixed baffle is opened due to the gravity of the internal injection molding raw material, so that the internal quantitative injection molding raw material is guided by a first guide plate, and the quantitative container is fixed to the left side; and conveying into an injection molding machine for injection molding treatment.

Description

Technical Field

[0001] The utility model relates to the field of injection molding machines, in particular to an automatic feeding structure for injection molding machines. Background Art

[0002] Injection molding machine, also known as injection molding machine or injection machine, is a main molding equipment that makes thermoplastics or thermosetting plastics into plastic products of various shapes through plastic molding molds. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to inject it into and fill the mold cavity.

[0003] According to a Chinese utility model patent with announcement number CN213533547U, a detachable injection molding machine feeding device includes an injection molding machine body, the upper wall of the injection molding machine body is connected to a hopper, the upper wall of the injection molding machine body is provided with a mounting plate, the side wall of the mounting plate is fixedly connected to two mounting bars, the upper walls of the two mounting bars are fixedly connected to the upper wall of the injection molding machine body through a plurality of bolts, the upper wall of the mounting plate is fixedly connected to a storage tank, the lower wall of the storage tank is connected to a discharge pipe, the discharge pipe is provided with a valve, the side wall of the mounting plate is fixedly connected to a baffle, and the side wall of the baffle is fixedly connected to a guide plate. The utility model has a reasonable structural design, can input a fixed amount of raw materials each time, prevents the situation of too much or too little raw materials caused by artificial feeding, ensures the normal operation of the injection molding machine, improves the working efficiency of the device, and can also prevent the device from spilling raw materials during the feeding process, avoiding the waste of resources.

[0004] However, the feeding device of the injection molding machine still has shortcomings when feeding granular materials. The design of the feeding device structure of the injection molding machine is often complex, and its structural characteristics lead to relatively high costs in overhaul and maintenance. This complexity not only affects the operating efficiency of the injection molding machine, but also increases the overall cost during use. Therefore, when using the injection molding machine for plastic molding processing, the maintenance and operation costs of the feeding device are an economic burden that cannot be ignored. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an automatic feeding structure for an injection molding machine, which solves the problem that the cost of inspection and maintenance is relatively high and the complexity not only affects the operating efficiency of the injection molding machine, but also increases the overall cost during use.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: an automatic feeding structure for an injection molding machine, comprising a main structure, the main structure comprising a protective shell and a hopper, the inner upper end of the protective shell is penetrated and fixedly connected with the hopper, a feeding port is provided at the lower end of one side of the protective shell, a recovery port is provided at the lower surface of the protective shell, a frame is fixedly connected to the inside of the protective shell, a pushing structure is provided on the inner side of the frame, the pushing structure comprises a first electric push rod and a sliding baffle, a sliding groove is provided on the inner side of the frame, a sliding baffle is slidably connected to the inside of the sliding groove, a spring structure is provided between one side surface of the sliding baffle and the inner side of the sliding groove, a through hole is penetrated and opened on the surface of the sliding baffle, a quantitative structure is provided at the inner lower end of the through hole, the quantitative structure comprises a quantitative container, the quantitative container is threadedly connected to the inner lower end of the through hole, and the lower end of the quantitative container is rotatably connected with a container cover through a rotating shaft;

[0007] An adjustment structure is provided at the lower end of the frame, and the adjustment structure includes a fixed baffle. A second electric push rod is fixedly connected to the lower end of the frame, and the fixed baffle is transmission-connected to the output end of the second electric push rod. A guide structure is provided at the lower end of the fixed baffle, and the guide structure includes a first guide plate and a second guide plate. The first guide plate and the second guide plate are both fixedly connected to the lower end of the fixed baffle.

[0008] Preferably, a sliding rod is fixedly connected inside the sliding groove.

[0009] Preferably, the sliding baffle is slidably connected to the surface of the sliding rod.

[0010] Preferably, one end of the upper surface of the fixed baffle is fixedly connected to a limiting rod, and the fixed baffle is slidably connected to the surface of the limiting rod.

[0011] Preferably, the fixed baffle is slidably connected to the lower end of the frame via a limiting rod.

[0012] Preferably, the first electric push rod is fixedly connected to the outside of the frame.

[0013] Preferably, the output end of the first electric push rod is transmission-connected with a push plate.

[0014] Preferably, a plurality of filter holes are formed through the surfaces of the fixed baffle and the container cover.

[0015] Preferably, the first guide plate is fixedly connected to one end of the lower surface of the fixed baffle plate close to the loading port.

[0016] Preferably, the second guide plate is fixedly connected to one end of the lower surface of the fixed baffle plate close to the recovery port.

[0017] The utility model provides an automatic feeding structure for an injection molding machine. Compared with the prior art, it has the following beneficial effects:

[0018] 1. In the utility model, by setting the pushing structure and the quantitative structure, when the raw materials of the injection molding machine are automatically quantitatively fed, the raw materials are introduced into the protective housing through the feed hopper. When the first electric push rod is at the rightmost end, the injection molding raw materials in the feed hopper enter the quantitative container of the quantitative structure through the through hole. After the injection molding raw materials fill the quantitative container, the push plate pushes the sliding baffle toward the left side through the extension of the first electric push rod. At this time, the spring structure is in a compressed state, and the quantitative container fixed at the lower end of the sliding baffle is also slid toward the left side together. When the container cover at the lower end of the quantitative container slides to the left end of the fixed baffle, the container cover that loses the blocking effect of the fixed baffle is blocked by the internal The gravity of the injection molding raw material is opened, so that the injection molding raw material after internal quantitative feeding is guided by the first guide plate and transported to the injection molding machine for injection molding. At the same time, the upper end of the quantitative container is blocked by the sliding baffle to prevent the injection molding raw material in the hopper from continuing to enter the quantitative container. Then the first electric push rod is shortened to the original position. Due to the reset elastic force of the spring structure, the sliding baffle is pushed toward the right end, so that the quantitative container returns to the position directly below the through hole again. Then the injection molding raw material enters the quantitative container from the inside of the hopper again, and the purpose of quantitative feeding of the injection molding raw material is achieved in sequence. Compared with the traditional quantitative structure, this structure is simpler and effectively improves the production efficiency and equipment stability.

[0019] 2. In the utility model, through the setting of the adjustment structure, when it is necessary to reduce or increase the amount of quantitative delivery of injection molding raw materials, the second electric push rod is extended to the longest, so that the fixed baffle is lowered to the lowest end at the lower end of the frame, the quantitative container is removed, and a new quantitative container is screwed into the lower end of the through hole. Different quantitative containers have the same inner diameter, and the purpose of different quantitative quantities is achieved by different lengths of quantitative containers. After the quantitative container is fixed, the second electric push rod is shortened until the upper surface of the fixed baffle and the lower surface of the container cover of the quantitative container are in contact with each other, and the adjustment can be completed, making it more convenient to adjust the quantitative quantity of the device, ensuring the accurate feeding of raw materials, and improving the quality consistency and production efficiency of injection molded products. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 For this utility model Figure 1 The enlarged view of point A in the middle;

[0022] Figure 3 It is a three-dimensional schematic diagram of the interior of the protective housing in the utility model;

[0023] Figure 4 For this utility model Figure 3 The enlarged view of point B in the middle;

[0024] Figure 5 It is a schematic diagram of the axonometric structure of the utility model.

[0025] 1. Main structure; 101. Protective shell; 102. Feed hopper; 103. Feeding port; 104. Recovery port; 105. Frame; 2. Pushing structure; 201. First electric push rod; 202. Push plate; 203. Sliding baffle; 204. Through hole; 205. Sliding groove; 206. Sliding rod; 207. Spring structure; 3. Adjusting structure; 301. Fixed baffle; 302. Second electric push rod; 303. Limiting rod; 4. Quantitative structure; 401. Quantitative container; 402. Rotating shaft; 403. Container cover; 5. Guide structure; 501. First guide plate; 502. Second guide plate; 6. Filter hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 5 The utility model provides two technical solutions, which specifically include the following embodiments:

[0028] Embodiment 1:

[0029] An automatic feeding structure for an injection molding machine comprises a main structure 1, wherein the main structure 1 comprises a protective shell 101 and a hopper 102, wherein the upper end of the inner part of the protective shell 101 is penetrated and fixedly connected with the hopper 102, so that the injection molding raw material can be directly poured into the inner part of the hopper 102, and a feeding port 103 is provided at the lower end of one side of the protective shell 101, and the injection molding raw material is quantitatively fed and transported to the inner part of the injection molding machine through the feeding port 103, and a recycling port 104 is provided on the lower surface of the protective shell 101, and the injection molding raw material with too small particles can be recycled through the recycling port 104. The protective housing 101 is fixedly connected to the inside of the protective housing 101, and a pushing structure 2 is arranged on the inner side of the frame 105. The pushing structure 2 includes a first electric push rod 201 and a sliding baffle 203. A sliding groove 205 is provided on the inner side of the frame 105. The sliding groove 205 is slidably connected to the inside of the sliding baffle 203. The sliding baffle 203 slides left and right on the inner side of the frame 105. When the quantitative container 401 reaches the upper end of the quantitative container 401, the injection molding material in the hopper 102 enters the quantitative container 401, and the through hole 204 is away from the quantitative container 401. When the quantitative container 401 reaches the left side of the fixed baffle 301, the injection molding material in the quantitative container 401 is sent to the injection molding machine for processing. A spring structure 207 is provided between the side surface of the sliding baffle 203 and the inner side of the sliding groove 205. The surface of the sliding baffle 203 is penetrated by a through hole 204, and the lower end of the through hole 204 is provided with a quantitative structure 4. The quantitative structure 4 includes a quantitative container 401, which is threadedly connected to the lower end of the inner part of the through hole 204. The lower end of the quantitative container 401 is rotatably connected to the container cover 403 through a rotating shaft 402. The interior of the sliding groove 205 is fixedly connected to a sliding rod 206. The sliding baffle 203 is slidably connected to the surface of the sliding rod 206. The first electric push rod 201 is fixedly connected to the outer side of the frame 105. The output end of the first electric push rod 201 is transmission-connected to a push plate 202, and the sliding baffle 203 is pushed by the push plate 202.

[0030] The injection molding raw material is poured into the hopper 102, and the raw material enters the quantitative container 401 inside the protective shell 101 through the hopper 102. After the quantitative container 401 is filled, the first electric push rod 201 is started to push the sliding baffle 203 to slide to the left, and the spring structure 207 is compressed at the same time, and the quantitative container 401 moves to the left side of the fixed baffle 301. The container cover 403 opens after losing the support of the fixed baffle 301, and the injection molding raw material falls into the injection molding machine under the action of gravity for processing. Subsequently, the first electric push rod 201 shortens and resets, and the spring structure 207 returns to its original state, pushing the sliding baffle 203 back to the right, and the quantitative container 401 returns to the bottom of the through hole 204 to prepare for the next quantitative feeding. This cycle is repeated to achieve automatic quantitative feeding of injection molding raw materials, improving production efficiency and equipment stability.

[0031] Embodiment 2:

[0032] On the basis of the first embodiment, the lower end of the frame 105 is provided with an adjustment structure 3, the adjustment structure 3 includes a fixed baffle 301, the lower end of the frame 105 is fixedly connected with a second electric push rod 302, the fixed baffle 301 is transmission-connected to the output end of the second electric push rod 302, the lower end of the fixed baffle 301 is provided with a guide structure 5, the guide structure 5 includes a first guide plate 501 and a second guide plate 502, the first guide plate 501 and the second guide plate 502 are both fixedly connected to the lower end of the fixed baffle 301, the first guide plate 501 guides the quantitative injection molding raw materials to be transmitted to the injection molding machine, and the second guide plate 502 guides the injection molding raw materials with too small particles after filtering, so as to facilitate recycling , one end of the upper surface of the fixed baffle 301 is fixedly connected to the limiting rod 303, the fixed baffle 301 is slidably connected to the surface of the limiting rod 303, the fixed baffle 301 is slidably connected to the lower end of the frame 105 through the limiting rod 303, and the surfaces of the fixed baffle 301 and the container cover 403 are penetrated with a plurality of filter holes 6, and the injection molding raw materials are filtered through the plurality of filter holes 6, so that the injection molding raw materials with too small particles leak into the second guide plate 502 at the lower end of the filter hole 6 for recovery, the first guide plate 501 is fixedly connected to one end of the lower surface of the fixed baffle 301 close to the feeding port 103, and the second guide plate 502 is fixedly connected to one end of the lower surface of the fixed baffle 301 close to the recovery port 104;

[0033] When it is necessary to adjust the quantitative delivery amount of the injection molding raw material, first start the second electric push rod 302 to extend it to the longest position, so that the fixed baffle 301 drops to the lowest position at the lower end of the frame 105, then remove the original quantitative container 401, select a new quantitative container 401 of appropriate length as needed and screw it into the lower end of the through hole 204, then shorten the second electric push rod 302, so that the fixed baffle 301 rises until its upper surface contacts the lower surface of the container cover 403 of the quantitative container 401, and completes the fixing and adjustment of the quantitative container 401. During the quantitative feeding process, the injection molding raw material is filtered through the filter hole 6, and the raw material with too small particles is guided to the recovery port 104 through the second guide plate 502, while the qualified raw material is guided and transmitted to the injection molding machine through the first guide plate 501, thereby realizing the adjustment of the quantitative delivery amount, ensuring the accuracy of raw material feeding, and improving the quality consistency and production efficiency of the injection molded products.

[0034] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the application should be included in the protection scope of the present application.

Claims

1. An automatic feeding structure for an injection molding machine, comprising a main structure (1), characterized in that: The main structure (1) comprises a protective shell (101) and a hopper (102); the upper end of the interior of the protective shell (101) is penetrated and fixedly connected with the hopper (102); a loading port (103) is provided at the lower end of one side of the protective shell (101); a recovery port (104) is provided on the lower surface of the protective shell (101); a frame (105) is fixedly connected to the interior of the protective shell (101); a pushing structure (2) is provided on the inner side of the frame (105); the pushing structure (2) comprises a first electric push rod (201) and a sliding baffle (203); a sliding baffle (203) is provided on the inner side of the frame (105); A groove (205), wherein a sliding baffle (203) is slidably connected inside the sliding groove (205), a spring structure (207) is arranged between a side surface of the sliding baffle (203) and the inner side of the sliding groove (205), a through hole (204) is penetrated through the surface of the sliding baffle (203), a quantitative structure (4) is arranged at the lower end of the inner part of the through hole (204), and the quantitative structure (4) comprises a quantitative container (401), the quantitative container (401) is threadedly connected to the lower end of the inner part of the through hole (204), and the lower end of the quantitative container (401) is rotatably connected to a container cover (403) via a rotating shaft (402); The lower end of the frame (105) is provided with an adjustment structure (3), the adjustment structure (3) includes a fixed baffle (301), the lower end of the frame (105) is fixedly connected to a second electric push rod (302), the fixed baffle (301) is transmission-connected to the output end of the second electric push rod (302), the lower end of the fixed baffle (301) is provided with a guide structure (5), the guide structure (5) includes a first guide plate (501) and a second guide plate (502), the first guide plate (501) and the second guide plate (502) are both fixedly connected to the lower end of the fixed baffle (301).

2. The automatic feeding structure for an injection molding machine according to claim 1, characterized in that: A sliding rod (206) is fixedly connected inside the sliding groove (205).

3. The automatic feeding structure for an injection molding machine according to claim 1, characterized in that: The sliding baffle (203) is slidably connected to the surface of the sliding rod (206).

4. The automatic feeding structure for an injection molding machine according to claim 1, characterized in that: One end of the upper surface of the fixed baffle (301) is fixedly connected to a limiting rod (303), and the fixed baffle (301) is slidably connected to the surface of the limiting rod (303).

5. The automatic feeding structure for an injection molding machine according to claim 1, characterized in that: The fixed baffle (301) is slidably connected to the lower end of the frame (105) via a limiting rod (303).

6. The automatic feeding structure for an injection molding machine according to claim 1, characterized in that: The first electric push rod (201) is fixedly connected to the outside of the frame (105).

7. The automatic feeding structure for an injection molding machine according to claim 1, characterized in that: The output end of the first electric push rod (201) is transmission-connected to a push plate (202).

8. The automatic feeding structure for an injection molding machine according to claim 1, characterized in that: A plurality of filtering holes (6) are provided through the surfaces of the fixed baffle (301) and the container cover (403).

9. The automatic feeding structure for an injection molding machine according to claim 1, characterized in that: The first guide plate (501) is fixedly connected to one end of the lower surface of the fixed baffle (301) close to the loading port (103).

10. The automatic feeding structure for an injection molding machine according to claim 1, characterized in that: The second guide plate (502) is fixedly connected to one end of the lower surface of the fixed baffle (301) close to the recovery port (104).

Images