Injection molding machine reloading mechanism convenient for replacing machine barrel and injection part

Abstract

The utility model relates to the field of manufacturing of injection molding machines, and discloses an injection molding machine material changing mechanism and an injection part convenient for replacing a machine barrel, which comprise a bracket fixed on the upper end surface of an injection seat, a base positioned at the upper end of the bracket and a material barrel, the material barrel slides on the upper end face of the base through the first guide mechanism and can move to be aligned with the material injection opening or the discharging opening, the lower end of the base slides on the support through the second guide mechanism, and the base can slide to one side of the cooling water jacket or slide to the material injection opening to be right opposite to a connecting pipe above the cooling water jacket. And the cylinder is time-saving and labor-saving to replace.

Description

Technical Field

[0001] The utility model relates to the field of injection molding machine manufacturing, in particular to an injection molding machine material changing mechanism and an injection component which are convenient for replacing a machine barrel. Background Art

[0002] In order to facilitate material replacement, a Chinese patent with announcement number CN215661470U discloses a material replacement device for an injection molding machine, including a barrel for loading materials, a base fixed at the bottom of the barrel, a discharge port and a material replacement port provided on the base, two slide rails provided in parallel on the upper end surface of the base, the bottom of the barrel is slidably arranged on the slide rails through a slider and can slide back and forth between the discharge port and the material replacement port.

[0003] The existing base is detachably fixedly connected to the injection seat of the injection molding machine, and the discharge port and the barrel are connected by a pipe. Since different barrels need to be replaced for injection of different products, each time the barrel is replaced, the material inside the barrel needs to be discharged through the material changing port first, and then the entire base is removed. Since the material changing mechanism has a certain weight, a lifting tool is required to move the entire material changing mechanism open to expose the barrel on the injection seat. After the barrel is replaced, the lifting tool needs to be used again to move the material changing mechanism to the top of the barrel, and the base plate needs to be installed together with the injection seat again. Since the frequency of barrel replacement is high, the existing material changing device will make barrel replacement time-consuming and labor-intensive. Utility Model Content

[0004] Aiming at the disadvantage that the existing material changing device of the injection molding machine which is convenient for material changing and the installation method of the injection seat will make the barrel replacement time-consuming and laborious, the first purpose of the utility model is to provide a material changing mechanism for the injection molding machine which is convenient for replacing the mechanism.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] A material changing mechanism for an injection molding machine which is convenient for replacing a barrel, comprises a bracket fixed to the upper end surface of an injection seat, a base located at the upper end of the bracket and a barrel, wherein an injection port and a discharge port are respectively arranged at both ends of the base, the barrel slides on the upper end surface of the base through a first guide mechanism and can be moved to align with the injection port or the discharge port, the lower end of the base slides on the bracket through a second guide mechanism, and the base can slide to one side of a cooling water jacket or slide to a pipe above the cooling water jacket where the injection port is directly opposite.

[0007] By adopting the above scheme, a second guide mechanism is added between the bracket and the base. When the barrel needs to be replaced, the base only needs to be slid relative to the bracket to one side of the cooling water pipe through the second guide mechanism. The pipe is fixed on the cooling water jacket, and the cooling water jacket is fixed on the barrel. The fixed position of the barrel is close to the cooling water jacket. Therefore, after the base is moved to one side of the cooling water jacket, the pipe, the cooling water jacket and the barrel fixed position can be exposed, and the barrel can be directly replaced. After the barrel is replaced, it is only necessary to slide the base again to the pipe above the cooling water jacket where the injection port is directly opposite. The above structure significantly improves the convenience of barrel replacement, and barrel replacement saves time and effort.

[0008] Preferably, the second guiding mechanism includes a slide rail fixed parallel to the lower end of the base and a slide seat fixed to the upper end of the bracket for allowing the slide rail to slide horizontally and linearly.

[0009] Preferably, a limiting mechanism is provided between the bracket and the base to limit the sliding movement of the slide rail relative to the slide seat, and the limiting mechanism includes a first through hole provided on the base, a first threaded groove provided on the bracket and opposite to the first through hole when the injection port is facing the pipe, and a locking screw passing through the first through hole and cooperating with the first threaded groove.

[0010] By adopting the above scheme, the base and the bracket can be driven to switch between limiting and releasing the limiting position by installing or removing the locking screw. When the base and the bracket are in the limiting position, the horizontal slip of the base can be avoided, ensuring the stability of the barrel injection.

[0011] Preferably, the first guide mechanism includes a guide rail and a slide plate fixed parallel to the upper end of the base, a slider guided and slidable on the guide rail is fixed at the lower end of the slide plate, the barrel is fixed on the slide plate, and the slide plate has a discharge hole for releasing the material in the barrel.

[0012] Preferably, a plurality of second thread grooves are arranged on the slide plate at intervals along the radial direction of the discharge hole with the discharge hole as the center.

[0013] The above solution can be used to adapt to the installation of barrels of different sizes, thereby increasing adaptability.

[0014] Preferably, both ends of the base are provided with positioning and anti-slipping mechanisms for quickly positioning the barrel for unloading or injection when the limiting slide is separated from the base.

[0015] Preferably, the positioning and anti-slip mechanism includes limit screws threadedly connected to both ends of the base, and when the slide plate slides to touch the limit screws at both ends respectively, the discharge hole is opposite to the injection port and the discharge port respectively.

[0016] By adopting the above solution, the limit screw not only plays a limiting role, but also can quickly realize the alignment of the discharge hole and the injection port or the discharge port, thereby improving the operating efficiency.

[0017] Preferably, a limiting portion is provided between the slide plate and the base, which allows the limiting slide plate to slide relative to the base when the discharge hole faces the injection port or the discharge port.

[0018] Preferably, the limiting portion includes limiting plates vertically fixed on both sides of the slide plate, a second through hole arranged on the limiting plate and a locking screw, and a third thread groove is arranged at both ends on both sides of the base, which is opposite to the second through hole when the discharge hole is opposite to the injection port or the discharge port, and the locking screw is tightly fitted with the third thread groove after passing through the second through hole.

[0019] By adopting the above solution, the limiting part can ensure that when the discharge hole is facing the injection port or the discharge port, the limiting slide plate is always in a stationary state relative to the base, thereby ensuring the stability of injection or discharge.

[0020] The second purpose of the utility model is to provide an injection component, including an injection seat, a barrel installed on the injection seat, a cooling water jacket fixed on the barrel, and an injection molding machine material changing mechanism for facilitating the replacement of the barrel provided at the upper end of the injection seat, the lower end of the pipe being threadedly connected to the upper end of the cooling water jacket and as the pipe rotates, the upper end of the pipe can rise to be plugged into and fit with the injection port or fall to be completely separated from the injection port.

[0021] With the above scheme, the pipe is threadedly connected to the cooling water jacket. As the pipe rotates on the cooling water jacket, the pipe can be driven to rise and fall. When the barrel needs to be disassembled, the pipe is first rotated and driven to descend to detach from the base, and the base is moved to expose the barrel, the cooling water jacket and the pipe. At this time, the barrel can be disassembled; after the subsequent barrel is installed, the base is first moved to the injection port facing the pipe above the cooling water jacket, and then the pipe is rotated and driven to rise to the upper end and inserted into the injection port.

[0022] The utility model has significant technical effects due to the adoption of the above technical scheme: a second guide mechanism is added between the bracket and the base, and when the barrel needs to be replaced, the base only needs to be slid relative to the bracket to one side of the cooling water pipe through the second guide mechanism, the pipe is fixed on the cooling water jacket, the cooling water jacket is fixed on the barrel, and the fixed position of the barrel is close to the cooling water jacket. Therefore, after the base is moved to one side of the cooling water jacket, the pipe, the cooling water jacket and the barrel fixed position can be exposed, and the barrel can be directly replaced. After the barrel is replaced, the base only needs to be slid again to the pipe above the cooling water jacket where the injection port is directly opposite to the injection port. The above structure significantly improves the convenience of barrel replacement, and barrel replacement saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is an axonometric view of the injection component of this embodiment;

[0024] Figure 2 This is an axonometric view of the injection component of this embodiment without the barrel;

[0025] Figure 3 yes Figure 2 A magnified image of A;

[0026] Figure 4 is a top view of the injection component of this embodiment without the barrel;

[0027] Figure 5 yes Figure 4 AA cross-sectional view;

[0028] Figure 6 yes Figure 5 A magnified view of B;

[0029] Figure 7 yes Figure 5 A cross-sectional view of BB;

[0030] Figure 8 yes Figure 7 Enlarged view of C;

[0031] Fig. 9 This is the axonometric measurement of the injection part of this embodiment when the barrel is replaced. Figure 7 .

[0032] The names of the parts indicated by the numerical labels in the above drawings are as follows: 1. Injection seat; 2. Bracket; 201. First thread groove; 3. Base; 301. First through hole; 4. Slide seat; 5. Slide rail; 6. Guide rail; 7. Slide plate; 8. Slider; 9. Barrel; 10. Discharge hole; 11. Discharge port; 111. Discharge pipe; 12. Limit screw; 13. Locking screw; 14. Cylinder; 15. Cooling water jacket; 16. Second thread groove; 17. Limit plate; 18. Third thread groove; 19. Locking screw; 20. Injection port; 21. Pipe connection. DETAILED DESCRIPTION

[0033] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0034] Example

[0035] An injection component includes an injection seat 1, on which a barrel 14 is mounted, on which a cooling water jacket 15 is fixed, and the upper end surface of the cooling water jacket 15 is vertically screwed with a pipe 21 for introducing materials through the cooling water jacket 15 into the barrel 14. The above is the prior art.

[0036] Reference Figure 1-Figure 9As shown, an injection molding machine material changing mechanism for facilitating the replacement of a barrel is provided at the upper end of the injection seat 1, and the injection molding machine material changing mechanism includes a bracket 2 fixed to the upper end surface of the injection seat 1, and two groups of brackets 2 are arranged in parallel and spaced apart. A base 3 is provided at the upper end of the bracket 2, and injection ports 20 for injecting material into the barrel 14 and a discharge port 11 for emptying the material in the barrel 9 are respectively provided at both ends of the base 3, and a discharge pipe 111 is connected to the lower end of the discharge port 11, and a barrel 9 is provided at the upper end of the base 3. The barrel 9 is guided and slidably moved on the upper end surface of the base 3 by a first guide mechanism, and the barrel 9 can be moved to align with the injection port 20 or the discharge port 11 during the sliding process.

[0037] Reference Figure 2-Figure 3 As shown, the first guide mechanism includes a guide rail 6 and a slide plate 7 fixed in parallel to the upper end surface of the base 3. A slider 8 that guides and slides on the guide rail 6 is fixed at the lower end of the slide plate 7. A barrel 9 is fixed on the upper end surface of the slide plate 7. The center of the slide plate 7 is provided with a discharge hole 10 for releasing the material in the barrel 9. In order to increase adaptability, a plurality of second threaded holes are arranged on the slide plate 7 with the discharge hole 10 as the center and at radial intervals along the discharge hole 10. Barrels 9 of different sizes can be fixed by screws matched with different second threaded holes.

[0038] The two ends of the base 3 are provided with a positioning and anti-slipping mechanism for quickly positioning the barrel 9 for unloading or injecting materials while the limited sliding plate 7 is separated from the base 3. Figure 4-Figure 6 As shown, the positioning and anti-slipping mechanism includes limit screws 12 threadedly connected to the two ends of the base 3. When the slide plate 7 slides to touch the limit screws 12 at the two ends respectively, the discharge hole 10 is opposite to the injection port 20 and the discharge port 11 respectively.

[0039] A limiting portion is provided between the slide plate 7 and the base 3 for limiting the movement of the slide plate 7 relative to the slide seat 4 when the discharge hole 10 faces the injection port 20 or the discharge port 11. Figure 2-Figure 3 As shown, the limiting portion includes a limiting plate 17 vertically fixed on both sides of the slide plate 7, a second through hole and a locking screw 19 arranged on the limiting plate 17, and a third thread groove 18 is arranged at both ends on both sides of the base 3 to face the second through hole when the discharge hole 10 faces the injection port 20 or the discharge port 11. The locking screw 19 is tightly fitted with the third thread groove 18 after passing through the second through hole.

[0040] The base 3 is guided and slidably moved on the upper end of the bracket 2 by the second guide mechanism. Figure 7-Figure 8As shown, the base 3 can be moved to one side of the barrel 14 by sliding and completely expose the cooling water jacket 15, the connecting pipe 21 and the installation position of the barrel 14. The base 3 can also slide to the injection port 20 to face the connecting pipe 21. The connecting pipe 21 can be vertically raised and lowered relative to the cooling water jacket 15 by rotating, and the connecting pipe 21 can be inserted into the injection port 20 when rising and can be completely separated from the injection port 20 when descending. The second guide mechanism includes a slide rail 5 fixed in parallel to the lower end of the base 3 and a slide seat 4 fixed to the upper end of the bracket 2 for the slide rail 5 to slide horizontally and linearly.

[0041] A limiting mechanism is provided between the bracket 2 and the base 3 for the limiting slide rail 5 to slide relative to the slide seat 4, and the limiting mechanism includes a first through hole 301 provided on the base 3, a first thread groove 201 provided on the bracket 2 and facing the first through hole 301 when the injection port 20 faces the pipe 21, and a locking screw 13 passing through the first through hole 301 and cooperating with the first thread groove 201.

[0042] The steps for replacing the materials in the barrel 14 and the barrel 9 are as follows (generally, the replacement of the barrel 14 is accompanied by the replacement of the materials):

[0043] 1. Unloading of barrel 9: Remove the locking screw 19, then move the slide plate 7 until the discharge hole 10 faces the discharge port 11, and the material in barrel 9 begins to be unloaded;

[0044] 2. Displacement of the base 3: Screw down the pipe 21 until it is out of the injection port 20, then remove the locking screw 13, move the base 3 until the pipe 21 and the cooling water jacket 15 are exposed, refer to Fig. 9 As shown, the operator can replace the cooling water jacket 15 and the barrel 14;

[0045] 3. Reset the base 3: Move the base 3 in the opposite direction until the injection port 20 is aligned with the pipe 21, screw the pipe 21 upward to the upper end and insert it into the injection port 20, install the locking screw 13, and fix the base 3 and the bracket 2;

[0046] 4. Loading the barrel 9: Move the slide plate 7 to between the discharge port 11 and the injection port 20, and inject the material into the barrel 9. When injection is required, move the slide plate 7 to align the discharge hole 10 with the injection port 20, and install the locking screw 19. At this time, the barrel 9 is in a state of injecting material into the barrel 14.

[0047] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A material changing mechanism for an injection molding machine that facilitates the replacement of a barrel, comprising a bracket (2) fixed to the upper end surface of an injection seat (1), a base (3) located at the upper end of the bracket (2), and a barrel (9), wherein an injection port (20) and a discharge port (11) are respectively arranged at both ends of the base (3), and the barrel (9) slides on the upper end surface of the base (3) through a first guide mechanism and can be moved to align with the injection port (20) or the discharge port (11), characterized in that: The lower end of the base (3) slides on the bracket (2) through a second guide mechanism, and the base (3) can slide to one side of the cooling water jacket (15) or slide to the pipe (21) above the injection port (20) facing the cooling water jacket (15).

2. The material changing mechanism for an injection molding machine that facilitates barrel replacement according to claim 1, characterized in that: The second guide mechanism comprises a slide rail (5) fixed parallel to the lower end of the base (3) and a slide seat (4) fixed to the upper end of the bracket (2) and capable of allowing the slide rail (5) to slide horizontally and linearly.

3. The material changing mechanism for an injection molding machine that facilitates barrel replacement according to claim 1, characterized in that: A limiting mechanism is provided between the bracket (2) and the base (3) for enabling the limiting slide rail (5) to slide relative to the slide seat (4), the limiting mechanism comprising a first through hole (301) provided on the base (3), a first thread groove (201) provided on the bracket (2) and facing the first through hole (301) when the injection port (20) faces the pipe (21), and a locking screw (13) passing through the first through hole (301) and cooperating with the first thread groove (201).

4. The material changing mechanism for an injection molding machine that facilitates barrel replacement according to claim 1, characterized in that: The first guide mechanism comprises a guide rail (6) and a slide plate (7) fixed in parallel to the upper end of the base (3); a slide block (8) is fixed at the lower end of the slide plate (7) and guides and slides on the guide rail (6); a barrel (9) is fixed on the slide plate (7); and the slide plate (7) has a discharge hole (10) for releasing the material in the barrel (9).

5. The material changing mechanism for an injection molding machine that facilitates barrel replacement according to claim 4, characterized in that: A plurality of second thread grooves (16) are arranged on the slide plate (7) at intervals along the radial direction of the discharge hole (10) with the discharge hole (10) as the center.

6. The material changing mechanism for an injection molding machine that facilitates barrel replacement according to claim 4, characterized in that: Both ends of the base (3) are provided with positioning and anti-slipping mechanisms for quickly positioning the barrel (9) for unloading or injecting materials when the limiting slide plate (7) is separated from the base (3).

7. The material changing mechanism for an injection molding machine that facilitates barrel replacement according to claim 6, characterized in that: The positioning and anti-slipping mechanism comprises limit screws (12) threadedly connected to the two ends of the base (3); when the slide plate (7) slides to touch the limit screws (12) at the two ends respectively, the discharge hole (10) faces the injection port (20) and the discharge port (11) respectively.

8. The material changing mechanism for an injection molding machine that facilitates barrel replacement according to claim 7, characterized in that: A limiting portion is provided between the slide plate (7) and the base (3) for causing the limiting slide plate (7) to slide relative to the base (3) when the discharge hole (10) faces the injection port (20) or the discharge port (11).

9. The material changing mechanism for an injection molding machine that facilitates barrel replacement according to claim 8, characterized in that: The limiting part comprises limiting plates (17) vertically fixed on both sides of the slide plate (7), a second through hole and a locking screw (19) arranged on the limiting plate (17); a third thread groove (18) is arranged at both ends on both sides of the base (3) to face the second through hole when the discharge hole (10) faces the injection port (20) or the discharge port (11); and the locking screw (19) is tightly fitted with the third thread groove (18) after passing through the second through hole.

10. An injection component, comprising an injection seat (1), a barrel (14) mounted on the injection seat (1), a cooling water jacket (15) fixed on the barrel (14), characterized in that: An injection molding machine material changing mechanism for facilitating the replacement of a barrel as described in any one of claims 1 to 9 is arranged at the upper end of the injection seat (1), and the lower end of the connecting pipe (21) is threadedly connected to the upper end of the cooling water jacket (15) and as the connecting pipe (21) rotates, the upper end of the connecting pipe (21) can rise to be plugged into and fit with the injection port (20) or fall to be completely separated from the injection port (20).

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