Squeezing machine with charging barrel waste receiving device

Abstract

The utility model relates to the technical field of injection molding, and discloses a squeezing machine with a charging barrel waste receiving device, which comprises a charging barrel and a discharging hole arranged on the charging barrel, and the charging barrel is provided with a receiving device for receiving waste discharged from the discharging hole. The receiving device comprises a material receiving disc and a connecting structure which is arranged between the material receiving disc and the charging barrel and enables the material receiving disc to be located below the discharging hole and move synchronously with the charging barrel, and the squeezing machine enables the material receiving disc to move synchronously along with the charging barrel so as to ensure that the material receiving disc is located below the discharging hole all the time, and waste discharged from the discharging hole is received accurately in real time.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, and in particular to an extrusion machine with a barrel waste receiving device. Background Technology

[0002] An injection molding machine, also known as a two-stage injection molding machine, typically consists of an upper barrel and a lower barrel. The upper barrel is used for pre-plasticizing and melting plastic, while the lower barrel is used to receive the molten plastic from the upper barrel and inject it into the mold.

[0003] Chinese patent application No. 202311687974.7 discloses a plasticizing injection device for a two-stage venting injection molding machine, including a support base, a barrel (upper barrel) on the support base, an venting screw installed inside the barrel, an injection seat installed on the support base, a barrel (lower barrel) installed on the injection seat, a nozzle at the other end of the barrel, a feed inlet on one side of the barrel, an injection rod inside the barrel, a power device connected to one end of the injection rod for driving the injection rod to move back and forth, and a melt channel between the discharge port of the barrel and the feed inlet of the barrel.

[0004] During injection molding, molten plastic flows through the gap between the injection rod (plunger head) and the barrel, flowing and remaining on the side of the plunger head furthest from the nozzle. Under prolonged high temperatures in the barrel, this retained material undergoes denaturation and carbonization, becoming waste. During the retraction motion, as the injection rod retracts, the waste is pushed to the rear of the barrel by the plunger head. A discharge port is located at the rear of the barrel, allowing the waste to be discharged through it.

[0005] In the existing technology, a receiving tray is placed directly on the machine body to receive waste material discharged from the discharge hole. Since the material cylinder needs to move continuously on the machine body in actual application, if the receiving tray is placed directly on the machine body and cannot move with the material cylinder, some waste material will not fall accurately into the receiving tray and will fall onto the machine body, which is inconvenient to clean and affects the cleanliness of the machine and the workshop. Utility Model Content

[0006] This invention addresses the shortcomings of existing technologies where the receiving tray placed on the machine body cannot accurately receive waste material discharged from the discharge hole, by providing an extrusion machine with a waste material receiving device in the barrel.

[0007] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0008] An extruder with a waste receiving device for a barrel includes a barrel and a discharge hole provided on the barrel. The barrel is provided with a receiving device for receiving waste discharged from the discharge hole. The receiving device includes a receiving tray and a connecting structure provided between the receiving tray and the barrel, which positions the receiving tray below the discharge hole and moves synchronously with the barrel.

[0009] Using the above scheme, the connecting structure allows the receiving tray to be located below the discharge hole and move synchronously with the material cylinder, so as to receive the waste material discharged from the discharge hole in real time and accurately.

[0010] Preferably, the connection structure includes a receiving base plate disposed below the discharge hole for placing the receiving tray, and a fixing plate fixed to the outer ring wall of the material cylinder and fixedly connected to the receiving base plate.

[0011] Using the above solution, by fixing the fixing plate to the material cylinder to ensure that the receiving base plate is always below the discharge hole, and placing the receiving tray on the receiving base plate, the receiving tray is also positioned below the discharge hole, and the receiving tray can move synchronously with the material cylinder. Once the waste material collection is full, there is no need to disassemble; simply replace the receiving tray promptly.

[0012] Preferably, the receiving base plate has a recessed groove on the side near the discharge hole to accommodate the receiving tray, and an opening on one side of the receiving base plate is provided to facilitate pulling out or pushing the receiving tray into the groove.

[0013] The above-mentioned design incorporates a groove for two main purposes: first, to position the receiving tray correctly, ensuring it lies below the discharge hole; and second, to increase the stability of the receiving tray on the receiving base plate, reducing the likelihood of it slipping off during cylinder movement. An opening is also included, facing the operator, facilitating both removing the receiving tray from the groove and pushing it back in.

[0014] Preferably, the fixing plate includes an arc-shaped segment fixed to the material cylinder and concentric with the material cylinder, and extension segments extending from both ends of the arc-shaped segment and fixedly connected to the receiving base plate.

[0015] By adopting the above solution, the arc-shaped section increases the contact area between the material cylinder and the barrel, making the connection between the two more secure. At the same time, the arc-shaped section reduces the risk of interference from the fixing plate during the movement of the barrel, and the extension section facilitates fixing to the receiving base plate.

[0016] Preferably, the extension section away from the opening is fixedly connected to the side of the receiving base plate away from the opening, and the extension section close to the opening is fixedly connected to the connecting plate fixed on the side of the receiving base plate where the opening is located. The connecting plate is U-shaped with the opening facing the receiving base plate to ensure that the opening is fully exposed.

[0017] The above solution involves fixing the extension section near the opening to the receiving base plate via a U-shaped connecting plate to ensure that the opening is not blocked, thus ensuring that the receiving tray can be smoothly pushed into or pulled out of the groove.

[0018] Preferably, the arc-shaped segment and the material cylinder are connected by a fixing structure, which includes a through hole provided on the arc-shaped segment and a locking bolt that passes through the through hole and engages with the material cylinder thread to fix the arc-shaped segment on the material cylinder.

[0019] Using the above method, one end of the locking bolt passes through the through hole and is threadedly connected to the threaded hole recessed on the material cylinder, fixing the arc-shaped section on the material cylinder, thereby fixing the fixing plate on the material cylinder.

[0020] Preferably, the through hole is circular or oval.

[0021] Using the above solution, in actual production, the operator first drills a through hole in the fixed plate, and then bends the fixed plate to form an arc-shaped section concentric with the barrel. Therefore, the through hole may deform and cannot be aligned with the threaded hole on the barrel. Therefore, the through hole at the deformation point of the fixed plate is set as an oval or a slightly larger circle to ensure that the through hole can still be aligned with the threaded hole after the fixed plate is bent and allow the screw section of the locking bolt to pass through.

[0022] This utility model, by adopting the above technical solution, has significant technical advantages: the fixing plate is fixed to the material cylinder and fixedly connected to the receiving base plate, ensuring that the receiving base plate is always located below the discharge hole. Placing the receiving tray on the receiving base plate ensures that the receiving tray is also located below the discharge hole, and the receiving tray can move synchronously with the material cylinder, receiving waste material discharged from the discharge hole in real time and accurately. Furthermore, once the waste tray is full, there is no need to disassemble it; simply pull out the full receiving tray and push in an empty one. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a receiving device in an extruder with a barrel waste receiving device, as described in this embodiment. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of a receiving device in an extruder with a barrel waste receiving device, as described in this embodiment. Figure 2 ;

[0025] Figure 3 This is a split view of the receiving device in an extruder with a barrel waste receiving device in one embodiment;

[0026] Figure 4 This is a schematic diagram of an extruder with a waste receiving device in one embodiment, showing the receiving device and the barrel working together. Figure 1 ;

[0027] Figure 5 This is a schematic diagram of an extruder with a waste receiving device in one embodiment, showing the receiving device and the barrel working together. Figure 2 .

[0028] The parts referred to by the numbers in the above attached figures are as follows: 1. Material cylinder; 2. Discharge hole; 3. Receiving tray; 4. Receiving base plate; 5. Fixing plate; 501. Arc-shaped section; 502. Extension section; 6. Groove; 7. Opening; 8. Connecting plate; 9. Through hole; 10. Locking bolt. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0030] Example

[0031] An extruder with a waste receiving device for the barrel, as described above. Figures 1 to 5 The extruder includes a barrel 1, which has a discharge hole 2 for discharging waste material. All other structures on the extruder are existing technologies, and this embodiment only improves the barrel 1 without modifying other structures. Therefore, other structures besides the barrel 1 are not shown in the figure and will not be described further here.

[0032] A receiving base plate 4 is provided below the discharge hole 2. A fixing plate 5 is fixedly provided on the outer ring wall of the material cylinder 1, and the fixing plate 5 is fixedly connected to the receiving base plate 4, so that the receiving base plate 4 moves synchronously with the material cylinder 1, thereby ensuring that the receiving base plate 4 is always located below the discharge hole 2. A receiving tray 3 is placed on the receiving base plate 4, so that the receiving tray 3 is also always located below the discharge hole 2, for receiving waste material discharged from the discharge hole 2.

[0033] The receiving base plate 4 has a recessed groove 6 on one side near the discharge hole 2 for placing the receiving tray 3. The receiving base plate 4 has an opening 7 on one side to facilitate pulling out or pushing the receiving tray 3 into the groove 6. The opening 7 faces the operator.

[0034] The fixing plate 5 includes an arc-shaped segment 501 fixed to and concentric with the material cylinder 1. The arc-shaped segment 501 has a through hole 9, and the material cylinder 1 has a threaded hole directly opposite the through hole 9. One end of a locking bolt 10 passes through the through hole 9 and engages with the threaded hole, thus fixing the arc-shaped segment 501 to the material cylinder 1. Several sets of through holes 9, threaded holes, and locking bolts 10 are arranged circumferentially around the material cylinder 1. In this embodiment, three sets are provided, and the through hole 9 furthest from the receiving base plate 4 on the arc-shaped segment 501 is circular, while the remaining two through holes 9 are oval.

[0035] The fixing plate 5 also includes extension sections 502 extending towards the receiving base plate 4 at both ends of the arc-shaped segment 501. The extension section 502 away from the opening 7 is directly and fixedly connected to the side of the receiving base plate 4 away from the opening 7. A connecting plate 8 is fixedly installed on the extension section 502 near the opening 7. The side of the connecting plate 8 away from the extension section 502 is fixedly connected to the receiving base plate 4. The connecting plate 8 is U-shaped with the opening 7 facing the receiving base plate 4, and the two ends of the U-shape are located on both sides of the opening 7, ensuring that the opening 7 is fully exposed.

[0036] The fixing plate 5 is fixed to the material cylinder 1, and the receiving base plate 4 is fixed to the fixing plate 5. The receiving tray 3 is pushed into the groove 6 from the opening 7 so that it is located below the discharge hole 2. When the receiving tray 3 is full of waste material, the full receiving tray 3 is pulled out of the groove 6 from the opening 7 and an empty receiving tray 3 is pushed in to receive the waste material.

[0037] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A squeeze machine with a barrel waste receiving device, comprising a barrel (1) and a discharge hole (2) provided on the barrel (1), characterized in that: The receiving device for receiving the waste discharged from the discharge hole (2) is arranged on the barrel (1) and comprises a receiving disc (3) and a connecting structure arranged between the receiving disc (3) and the barrel (1) to enable the receiving disc (3) to be located below the discharge hole (2) and to move synchronously with the barrel (1).

2. A squeeze machine having a barrel waste receiving device as claimed in claim 1 wherein: The connecting structure comprises a receiving bottom plate (4) arranged below the discharge hole (2) to place the receiving disc (3) and a fixing plate (5) fixed to the outer wall of the barrel (1) and fixedly connected with the receiving bottom plate (4).

3. A squeeze machine having a barrel waste receiving device as claimed in claim 2 wherein: The receiving bottom plate (4) is recessed with a recess (6) for accommodating the receiving disc (3) on one side close to the discharge hole (2), and is provided with an opening (7) on one side to facilitate the extraction or insertion of the receiving disc (3) into the recess (6).

4. A squeeze machine having a barrel waste receiving device as claimed in claim 3 wherein: The fixing plate (5) comprises an arc segment (501) fixed to the barrel (1) and concentric with the barrel (1), and an extension segment (502) arranged at both ends of the arc segment (501) and fixedly connected with the receiving bottom plate (4).

5. A squeeze machine having a barrel waste receiving device as claimed in claim 4 wherein: The extension segment (502) away from the opening (7) is fixedly connected with the side of the receiving bottom plate (4) away from the opening (7), and the extension segment (502) close to the opening (7) is fixedly connected with a connecting plate (8) fixed on the side of the receiving bottom plate (4) where the opening (7) is arranged, and the connecting plate (8) is in a U shape with the opening (7) facing the receiving bottom plate (4) to ensure that the opening (7) is completely exposed.

6. A squeeze machine having a barrel waste receiving device as defined in claim 4, wherein: The arc segment (501) and the barrel (1) are connected through a fixing structure, and the fixing structure comprises a through hole (9) arranged on the arc segment (501) and a locking bolt (10) passing through the through hole (9) and threadedly matched with the barrel (1) to fix the arc segment (501) to the barrel (1).

7. A squeeze machine having a barrel waste receiving device as claimed in claim 6 wherein: The through hole (9) is circular or waist-shaped.

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