Injection molding device with preheating structure for plastic container processing

Abstract

The utility model discloses an injection molding device with a preheating structure for processing a plastic container, a feed port of a conveying cylinder is connected with a discharge port of a preheating crushing box, the preheating crushing box comprises a box body, the interior of the box body is sequentially divided into a crushing area and a preheating area from top to bottom, the crushing area is internally provided with a crushing roller mechanism, and the preheating area is internally provided with a preheating roller mechanism. A mounting groove is formed in the inner wall of the preheating area, a plurality of sets of heating rods are mounted in the mounting groove, a heat conduction plate is arranged at an opening of the mounting groove, and a mixing mechanism used in cooperation with the heat conduction plate is arranged in the preheating area. According to the injection molding device with the preheating structure for processing the plastic container, the problems that according to an existing injection molding device, plastic raw materials are directly put into a feeding cylinder and conveyed through a spiral feeding plate, and the plastic raw materials are not preheated are solved, a feeding port of the conveying cylinder is connected with a discharging port of a preheating smashing box, and the feeding port of the conveying cylinder is connected with a discharging port of the preheating smashing box; and the heating rod can heat the preheating area, so that the plastic raw materials entering the preheating area are preheated.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic containers, in particular to an injection molding device with a preheating structure for processing plastic containers. Background Art

[0002] Plastic containers are hollow blow-molded containers, which are processed by hollow molding. There are open plastic barrels and cans and closed plastic barrels and cans. Open plastic barrels and cans are mainly used to hold solid chemicals, food, medicines, etc.; closed plastic barrels and cans are mainly used to hold liquid substances. It has the characteristics of light weight, not easy to break, corrosion resistance, and recyclability. The process flow of plastic containers is: mixing → screw extrusion → mold closing → blow molding → mold opening → cooling → trimming → inspection. Injection molding devices are required in the processing of plastic containers.

[0003] After searching, it was found that in the prior art, such as publication number CN219445912U, an injection molding device includes a base, a feed barrel is fixedly connected to the left side of the upper end of the base, a discharge barrel is fixedly connected to the right side of the upper end of the base, a second slot is provided in the middle of the base, a bidirectional screw is rotatably connected inside the second slot, a first slot is provided on both the left and right sides of the base, a limit rod is fixedly connected inside the first slot, an arc plate is provided on the front and rear sides of the upper end of the base, a second connecting block is fixedly connected to the middle position of the lower end of the arc plate, and the second connecting block is respectively threadedly connected to one side of the bidirectional screw. In the utility model, the bidirectional screw is driven to rotate by a first servo motor, so that the arc plate can be driven to move to both sides along the limit rod through the first connecting block, so that the first rotating shaft and the spiral feeding plate inside the arc plate can be easily cleaned.

[0004] To sum up, the existing injection molding device is convenient for cleaning the first rotating shaft and the spiral feeding plate inside the arc plate, but the existing injection molding device directly puts the plastic raw material into the feeding barrel for transportation through the spiral feeding plate, and does not preheat the plastic raw material. The hardness of the plastic raw material is relatively large, which makes the spiral feeding plate easy to be damaged after long-term use, thereby reducing the service life of the injection molding device. Therefore, an injection molding device for plastic container processing with a preheating structure is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an injection molding device for processing plastic containers with a preheating structure, so as to solve the problem that the existing injection molding device proposed in the above background technology directly puts the plastic raw material into the feed barrel and conveys it through a spiral feed plate without preheating the plastic raw material.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection molding device for processing plastic containers with a preheating structure, comprising a conveying cylinder, one end of which is provided with an injection molding discharge nozzle, and a rotating shaft is installed inside the conveying cylinder, the outer side of the rotating shaft is fixedly connected with a spiral feeding plate, and one end of the rotating shaft is connected to a first driving motor arranged on the outer side of the conveying cylinder, a heating plate is installed on the outer side of the conveying cylinder, the feed port of the conveying cylinder is connected with the discharge port of a preheating crushing box, the preheating crushing box comprises a box body, and the interior of the box body is divided into a crushing zone and a preheating zone from top to bottom, a crushing roller mechanism is arranged inside the crushing zone, an inner wall of the preheating zone is provided with an installation groove, a plurality of groups of heating rods are installed inside the installation groove, and a heat conducting plate is arranged at the opening of the installation groove, and a mixing mechanism used in conjunction with the heat conducting plate is arranged inside the preheating zone.

[0007] Preferably, the heating plate is located inside the protective cover.

[0008] Through the above technical solution: it is convenient to protect the heating plate.

[0009] Preferably, a feed inlet is provided at the top of the box body, and a sealing cover matching the feed inlet is installed at the feed inlet; a discharge port is provided at the bottom of the box body, and a valve matching the discharge port is installed inside the discharge port.

[0010] Through the above technical solution: it is convenient for materials to enter and discharge.

[0011] Preferably, the crushing zone and the preheating zone are divided by a partition plate, and a material passage is provided on the partition plate.

[0012] Through the above technical solution: it is convenient for materials to enter the preheating zone.

[0013] Preferably, the mixing mechanism includes a second drive motor, and the second drive motor is installed at the bottom outside the box body, the output end of the second drive motor is connected to the first gear, and the first gear is meshed with the second gear, the inner side of the second gear is connected to the drive rod, one end of the drive rod is connected to the first cross bar arranged inside the preheating zone, and two groups of mounting rods are arranged on the top of the first cross bar, several groups of stirring rods are installed on the outside of the mounting rod, and the stirring rods close to the side of the heat conduction plate are connected by a scraper, and the scraper is in contact with the outer side of the heat conduction plate.

[0014] Through the technical solution, it is convenient to mix the raw materials.

[0015] Preferably, the other ends of the two groups of mounting rods are connected by a second cross bar, and a rotating rod is arranged on the top of the second cross bar, and the rotating rod is rotatably connected to a rotating rod support plate arranged inside the preheating zone.

[0016] Through the above technical solution: the moving stability of the installation rod is improved.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: the injection molding device for processing plastic containers with a preheating structure solves the problem that the existing injection molding device directly puts the plastic raw materials into the feed barrel for conveying through the spiral feeding plate without preheating the plastic raw materials. By connecting the feed port of the conveying barrel with the discharge port of the preheating crushing box, the preheating crushing box includes a box body, and the interior of the box body is divided into a crushing zone and a preheating zone from top to bottom. An installation groove is opened on the inner wall of the preheating zone, and several groups of heating rods are installed in the installation groove, and a heat conducting plate is arranged at the opening of the installation groove. When in use, the plastic raw materials are put into the box body, crushed by the crushing roller mechanism, and then enter the preheating zone. The heating rod can heat the preheating zone, thereby preheating the plastic raw materials entering the preheating zone. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall front view cross-sectional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the preheating crushing box of the utility model;

[0020] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0021] Figure 4 For this utility model Figure 2 The enlarged structural diagram at B in the middle;

[0022] Figure 5 This is a schematic diagram of the position relationship of the installation rods of the utility model.

[0023] In the figure: 1. conveying cylinder; 101. injection molding discharge nozzle; 102. rotating shaft; 103. spiral feeding plate; 104. first driving motor; 105. heating plate; 1051. protective cover; 2. preheating crushing box; 201. box body; 202. crushing zone; 203. preheating zone; 204. crushing roller mechanism; 205. heating rod; 206. heat conducting plate; 207. partition plate; 3. mixing mechanism; 301. second driving motor; 302. first gear; 303. second gear; 304. driving rod; 305. first cross bar; 306. mounting rod; 307. stirring rod; 3071. scraper; 308. second cross bar. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-5 The utility model provides a technical solution: an injection molding device for processing plastic containers with a preheating structure, wherein a feeding port of a conveying cylinder 1 is connected to a discharging port of a preheating crushing box 2 .

[0026] Specifically, an injection molding discharge nozzle 101 is provided at one end of the conveying cylinder 1, and a rotating shaft 102 is installed inside the conveying cylinder 1, a spiral feeding plate 103 is fixedly connected to the outer side of the rotating shaft 102, and one end of the rotating shaft 102 is connected to a first driving motor 104 arranged on the outer side of the conveying cylinder 1, and a heating plate 105 is installed on the outer side of the conveying cylinder 1.

[0027] In yet a further embodiment, the heating plate 105 is located inside the protective cover 1051 .

[0028] Specifically, the preheating crushing box 2 includes a box body 201, and the interior of the box body 201 is divided into a crushing zone 202 and a preheating zone 203 from top to bottom. A crushing roller mechanism 204 is arranged inside the crushing zone 202, and an installation groove is opened on the inner wall of the preheating zone 203. A plurality of groups of heating rods 205 are installed inside the installation groove, and a heat conducting plate 206 is arranged at the opening of the installation groove. A mixing mechanism 3 used in conjunction with the heat conducting plate 206 is arranged inside the preheating zone 203.

[0029] In a further embodiment, a feed inlet is provided at the top of the box body 201, and a sealing cover matching therewith is installed at the feed inlet, a discharge port is provided at the bottom of the box body 201, and a valve matching therewith is installed inside the discharge port.

[0030] In a further embodiment, the crushing zone 202 and the preheating zone 203 are divided by a partition plate 207 , and a material passage is provided on the partition plate 207 .

[0031] Specifically, the mixing mechanism 3 includes a second drive motor 301, and the second drive motor 301 is installed at the bottom of the outer side of the box body 201, the output end of the second drive motor 301 is connected to the first gear 302, and the first gear 302 is meshed with the second gear 303, the inner side of the second gear 303 is connected to the drive rod 304, one end of the drive rod 304 is connected to the first cross bar 305 set inside the preheating zone 203, and two groups of mounting rods 306 are set on the top of the first cross bar 305, and several groups of stirring rods 307 are installed on the outer side of the mounting rod 306, and the stirring rods 307 close to the side of the heat conduction plate 206 are connected by a scraper 3071, and the scraper 3071 is in contact with the outer side of the heat conduction plate 206.

[0032] Specifically, the other ends of the two sets of mounting rods 306 are connected via a second crossbar 308 , and a rotating rod is disposed on the top of the second crossbar 308 , and the rotating rod is rotatably connected to a rotating rod support plate disposed inside the preheating zone 203 .

[0033] In a further embodiment, one end of the driving rod 304 is rotatably connected to a support plate disposed at the bottom of the box body 201 .

[0034] When in use, the plastic raw material is put into the box body 201 through the feed port opened on the top of the box body 201. After entering the box body 201, the plastic raw material is crushed by the crushing roller mechanism 204. After crushing, it enters the preheating zone 203. At this time, the heating rod 205 can heat the inside of the preheating zone 203, so that the plastic raw material entering the preheating zone 203 is preheated. At the same time, the second drive motor 301 is installed at the bottom of the outer side of the box body 201. The function of the second drive motor 301 The lower first gear 302 drives the second gear 303 and the driving rod 304 to rotate, thereby driving the mounting rod 306, the stirring rod 307 and the scraper 3071 to move through the first cross bar 305, so as to stir the plastic raw materials in the preheating zone 203. At the same time, the setting of the scraper 3071 can also prevent the plastic raw materials from sticking to the heat conducting plate 206. The preheated plastic raw materials enter the interior of the conveying cylinder 1, the heating plate 105 heats the interior of the conveying cylinder 1, and the spiral feeding plate 103 conveys the heated plastic raw materials.

[0035] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An injection molding device for processing plastic containers with a preheating structure, comprising a conveying cylinder (1), one end of the conveying cylinder (1) is provided with an injection molding discharge nozzle (101), and a rotating shaft (102) is installed inside the conveying cylinder (1), the outer side of the rotating shaft (102) is fixedly connected with a spiral feeding plate (103), and one end of the rotating shaft (102) is connected to a first driving motor (104) arranged outside the conveying cylinder (1), and a heating plate (105) is installed outside the conveying cylinder (1), characterized in that: The feeding port of the conveying cylinder (1) is connected to the discharging port of the preheating and crushing box (2); the preheating and crushing box (2) comprises a box body (201); the interior of the box body (201) is divided into a crushing zone (202) and a preheating zone (203) from top to bottom; a crushing roller mechanism (204) is arranged inside the crushing zone (202); an installation groove is provided on the inner wall of the preheating zone (203); a plurality of groups of heating rods (205) are installed inside the installation groove; a heat conducting plate (206) is arranged at the opening of the installation groove; and a mixing mechanism (3) used in conjunction with the heat conducting plate (206) is arranged inside the preheating zone (203).

2. The injection molding device for processing plastic containers with a preheating structure according to claim 1, characterized in that: The heating plate (105) is located inside the protective cover (1051).

3. The injection molding device for processing plastic containers with a preheating structure according to claim 1, characterized in that: The box body (201) is provided with a feed inlet at the top, and a sealing cover matching the feed inlet is installed at the feed inlet; the box body (201) is provided with a discharge port at the bottom, and a valve matching the discharge port is installed inside the discharge port.

4. The injection molding device for processing plastic containers with a preheating structure according to claim 1, characterized in that: The crushing zone (202) and the preheating zone (203) are divided by a partition plate (207), and a material passage opening is provided on the partition plate (207).

5. The injection molding device for processing plastic containers with a preheating structure according to claim 1, characterized in that: The mixing mechanism (3) comprises a second drive motor (301), and the second drive motor (301) is installed at the bottom of the outer side of the box body (201); the output end of the second drive motor (301) is connected to the first gear (302), and the first gear (302) is meshed with the second gear (303); the inner side of the second gear (303) is connected to the drive rod (304); one end of the drive rod (304) is connected to a first cross bar (305) arranged inside the preheating zone (203), and two groups of mounting rods (306) are arranged on the top of the first cross bar (305); a plurality of groups of stirring rods (307) are installed on the outer side of the mounting rod (306), and the stirring rods (307) close to the side of the heat conducting plate (206) are connected by a scraper (3071), and the scraper (3071) is in contact with the outer side of the heat conducting plate (206).

6. The injection molding device for processing plastic containers with a preheating structure according to claim 5, characterized in that: The other ends of the two groups of mounting rods (306) are connected via a second cross bar (308), and a rotating rod is arranged on the top of the second cross bar (308), and the rotating rod is rotatably connected to a rotating rod support plate arranged inside the preheating zone (203).

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