Automatic power-off protection injection molding machine

Abstract

The utility model relates to an automatic power-off protection injection molding machine, and belongs to the technical field of injection molding machines. The power-off protection device comprises an injection molding body and a power-off protection device body arranged on the injection molding body, a dustproof cover used for covering the power-off protection device body is detachably arranged on the injection molding body, the dustproof cover is connected with the injection molding body in a sealed mode, and a waterproof sealing structure is arranged in the dustproof cover. And the waterproof sealing structure is arranged on one side far away from the dustproof cover rotating shaft. The power-off protection device has the effect of reducing the influence of external dust and moisture on the power-off protection device.

Description

Technical Field

[0001] The present application relates to the technical field of injection molding machines, and in particular to an automatic power-off protection injection molding machine. Background Art

[0002] An injection molding machine is a machine that injects thermoplastic or thermosetting plastics into a closed mold through heating and high pressure, where it cools and solidifies to form a desired plastic product. It is one of the most widely used processing machines in the plastics processing industry and is widely used in industrial production.

[0003] During operation, injection molding machines may experience abnormal operation due to various reasons (such as unstable power supply, overload, overtemperature, internal component failure, etc.). Automatic power-off protection devices can quickly cut off power when these abnormal conditions are detected, preventing further damage to the equipment and thus protecting its safety.

[0004] Regarding the above-mentioned related technologies, for the automatic power-off protection device installed on the outer surface of the injection molding machine, dust and water vapor are likely to enter the power-off protection device during daily work, making maintenance more complicated. Utility Model Content

[0005] In order to reduce the impact of external dust and moisture on the power-off protection device, the present application provides an automatic power-off protection injection molding machine.

[0006] The automatic power-off protection injection molding machine provided in this application adopts the following technical solution:

[0007] An automatic power-off protection injection molding machine includes an injection molding body and a power-off protection device arranged on the injection molding body. A dust cover for covering the power-off protection device is detachably provided on the injection molding body. The dust cover is sealed to the injection molding body. A waterproof sealing structure is provided inside the dust cover. The waterproof sealing structure is arranged on a side close to the power-off protection device away from the sealed connection between the dust cover and the injection molding body.

[0008] By adopting the above technical solution, when using the above-mentioned injection molding machine, the setting of the dust cover can provide protection and dustproof effects for the power-off protection device, first preliminarily reducing the probability of external dust entering the power-off protection device, and then the waterproof sealing structure can reduce the contact of external moisture with the power-off protection device, playing a double sealing role, and ensuring the long-term stable operation of the device.

[0009] Optionally, an installation groove is formed on an outer edge of the dust cover, and a sealing member is provided in the installation groove, and the injection molded body has a sealing groove corresponding to the sealing member.

[0010] By adopting the above technical solution, a sealing matching method of the dust cover and the injection molded body is disclosed. After the dust cover and the injection molded body are fixedly connected, the seal is also located in the sealing groove, thereby realizing a sealed connection between the dust cover and the injection molded body.

[0011] Optionally, the sealing member is a sealing airbag, and the bottom wall of the sealing groove is provided with a pressing ridge for pressing the sealing airbag.

[0012] By adopting the above technical solution, the form of the sealing member is specifically disclosed, and the setting of the compression rib can have an extrusion effect on the sealing airbag. After the dust cover is installed on the injection molded body, the compression rib drives the sealing airbag to be compressed and deformed, so that the sealing airbag fits tightly in the sealing groove, thereby improving the sealing effect and increasing the sealing stability.

[0013] Optionally, the pressing ridge is slidably mounted on the injection molding body, and the dust cover is provided with a driving strip for driving the pressing ridge.

[0014] By adopting the above technical solution and setting the driving strip, the dust cover can actively drive the pressing convex strip to press against the sealing airbag, which can further improve the sealing performance of the sealing airbag in the sealing groove and has strong adaptability.

[0015] Optionally, the injection molded body has a sliding groove for the sliding arrangement of the clamping ridge, and the injection molded body is provided with a connecting groove connected to the sliding groove; the end of the clamping ridge is provided with a first inclined surface, and a push column with the first inclined surface is slidingly installed in the connecting groove, and the push column is provided with a second inclined surface on the side away from the first inclined surface, and the driving strip abuts the second inclined surface to drive the push column to move toward the first inclined surface.

[0016] By adopting the above technical solution, after the dust cover is installed on the injection molded body, the drive bar of the injection molded body is inserted into the connecting groove, the drive bar abuts the second inclined surface, driving the push column to move toward the direction of the clamping ridge, and the push column abuts the first inclined surface, driving the clamping ridge to move toward the sealing airbag, thereby realizing the compression deformation of the sealing airbag. The structure is simple and the operation is convenient.

[0017] Optionally, a limiting strip is provided on the side wall of the compression protrusion, a first elastic member for resetting the compression protrusion is provided between the limiting strip and the inner wall of the communicating groove, the pushing column sleeve is provided with a second elastic member for resetting, and the pushing column and the inner wall of the communicating groove are provided with limiting portions for abutment of the two ends of the second elastic member.

[0018] By adopting the above technical solution, through the setting of the first elastic member and the limiting strip, after the push of the push column is released, the clamping protrusion can automatically reset to the initial position, and the first elastic member can increase the clamping force of the clamping protrusion on the sealing airbag, and the setting of the second elastic member and the limiting part can realize the automatic reset of the push column.

[0019] Optionally, the communicating groove is located on a side of the sealing groove close to the power-off protection device, the waterproof sealing structure is provided on the driving bar, and the waterproof sealing structure is an absorption bar that adheres to the driving bar and faces the power-off protection device.

[0020] By adopting the above technical solution, a waterproof sealing structure is disclosed, and the absorption strip is arranged on the driving strip, so that dustproofing is achieved while completing the sealing of the waterproof structure, thereby improving the installation efficiency of the waterproof cover.

[0021] Optionally, a fixing column is provided on the injection molded body, the dust cover has a fixing ring mounted on the fixing column, the dust cover is provided with a locking part inserted into the injection molded body, the locking part includes a locking shell, a locking spring and a locking ball, and the injection molded body has a locking groove for locking the locking ball.

[0022] By adopting the above technical solution and setting the fixing column and the fixing ring, the dust cover can be positioned, which is convenient for subsequent fixation. At the same time, the dust cover can rotate along the fixing column, which is convenient for staff to inspect and maintain the power-off protection device.

[0023] Optionally, the injection-molded body is provided with a positioning column on the top of the fixing column for limiting the rotation of the dust cover, and the length of the positioning column is smaller than the length of the driving bar inserted into the connecting groove.

[0024] By adopting the above technical solution and setting the positioning column, when performing maintenance, the staff can first release the dust cover from the locked state, and then rotate it upward along the fixed column so that the dust cover rests on the positioning column to achieve the positioning of the dust cover.

[0025] Optionally, the dust cover is provided with an observation window connected to the inner cavity.

[0026] By adopting the above technical solution and providing the observation window, the staff can observe the conditions of the internal power-off protection device and the waterproof seal to facilitate maintenance or replacement.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. This application preliminarily reduces the probability of external dust entering the power-off protection device by first sealing the dust cover and the injection-molded body, and then further reduces the contact of external moisture with the power-off protection device through the waterproof sealing structure;

[0029] 2. The present application provides a compression rib, which allows the sealing airbag to be compressed and deformed and fit tightly into the sealing groove after the dust cover is installed.

[0030] 3. This application facilitates the positioning of the dust cover on the injection molded body by setting a fixing column and a fixing ring. At the same time, the setting of the positioning column allows the dust cover to rotate upward and rest on the positioning column, making it easier for staff to inspect and maintain the power-off protection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0032] Figure 2 yes Figure 1 A local enlarged schematic diagram of point A in the middle.

[0033] Figure 3 It is a cross-sectional schematic diagram of the dust cover and the injection molded body before assembly according to an embodiment of the present application.

[0034] Explanation of the accompanying drawings: 1. Injection molded body; 11. Fixed column; 12. Sealing groove; 13. Sliding groove; 14. Connecting groove; 141. Vertical groove; 142. Horizontal groove; 15. Locking ring groove; 151. Locking groove; 16. Positioning column; 2. Power-off protection device; 3. Dust cover; 31. Fixed ring; 32. Mounting groove; 33. Sealing airbag; 34. Drive bar; 35. Absorption bar; 36. Observation window; 37. Locking piece; 371. Locking shell; 372. Locking spring; 373. Locking ball; 4. Pressing ridge; 41. Limiting strip; 42. First elastic piece; 43. First inclined plane; 5. Push column; 51. Second inclined plane; 52. Limiting part; 53. Second elastic piece. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-3 This application is described in further detail.

[0036] The embodiment of the present application discloses an automatic power-off protection injection molding machine.

[0037] Reference Figure 1 An automatic power-off protection injection molding machine includes an injection molding body 1, and a power-off protection device 2 is provided on the side wall of the injection molding body 1. The structure of the power-off protection device 2 is consistent with the prior art, and it is connected to the electrical system of the injection molding body 1 to detect the voltage working condition of the injection molding machine.

[0038] Reference Figure 1and Figure 2 The injection molded body 1 has a removable dust cover 3 on the outside of the power-off protection device 2, which covers the power-off protection device 2. The dust cover 3 is a box-shaped body with one end open, and the contact surface between the dust cover 3 and the injection molded body 1 is a sealed fit. A retaining ring 31 is integrally provided on the top of the dust cover 3, and the injection molded body 1 has a fixing post 11 for the retaining ring 31 to be inserted. The retaining ring 31 and the fixing post 11 ensure that the dust cover 3 is pre-positioned, and the dust cover 3 can also rotate circumferentially along the fixing post 11.

[0039] Combine Figure 2 and Figure 3 The dust cover 3 has a mounting groove 32 on its end surface facing the injection molded body 1. The mounting groove 32 is rectangular ring-shaped. A sealing member is fixedly mounted in the mounting groove 32 of the dust cover 3. The sealing member is a sealing airbag 33.

[0040] The sidewall of the injection molded body 1 has a sealing groove 12 corresponding to the mounting groove 32, and the dimensions of the sealing groove 12 and the mounting groove 32 are compatible. A compression rib 4 is slidably mounted on the bottom wall of the sealing groove 12, which is used to squeeze and seal the airbag 33. The injection molded body 1 has a sliding groove 13 for the compression rib 4. There are four compression ribs 4, arranged on the four sides of the bottom wall of the sealing groove 12. Initially, the compression ribs 4 are entirely located within the sliding groove 13.

[0041] The pressing ridge 4 is integrally provided with a limit strip 41 within the sliding groove 13. The limit strip 41 is annular and its overall size is larger than the notch of the sliding groove 13. A plurality of first elastic members 42 are disposed between the limit strip 41 and the top wall of the sliding groove 13. In this embodiment, the first elastic members 42 are compression springs.

[0042] The end of the pressing rib 4 has a first inclined surface 43 facing the center of the dust cover 3. The injection molded body 1 has a connecting groove 14 connected to the sliding groove 13. The connecting groove 14 has an L-shaped cross section, which includes a vertical groove 141 connected to the sliding groove 13 and a horizontal groove 142 connected to the vertical groove 141 and passing through the injection molded body 1. The injection molded body 1 is provided with a push column 5 that slides in the vertical groove 141. The end of the push column 5 abuts against the first inclined surface 43. By moving the push column 5, the pressing rib 4 can be pushed out of the sliding groove 13, thereby driving the sealing airbag 33 to deform and compress, thereby improving the sealing effect.

[0043] The inner side of the dust cover 3 is integrally provided with a drive bar 34 for inserting into the horizontal slot 142 to drive the push column 5 to slide. The push column 5 is provided with a second inclined surface 51 at the end facing the horizontal slot 142. The second inclined surface 51 faces the notch of the horizontal slot 142. When the drive bar 34 is inserted horizontally, it can move the push column 5 into the sliding slot 13, thereby driving the movement of the pressing ridge 4.

[0044] A second elastic member 53 is sleeved around the outer side of the push post 5. Stops 52 are located within the vertical slot 141 and on the outer side of the push post 5, each of which abuts against the second elastic member 53. This allows the push post 5 to return to its initial position after the driving bar 34 releases its force. Simultaneously, the pressing rib 4 also returns to its initial position, positioned entirely within the sliding slot 13.

[0045] A waterproof seal is located on the side of the drive bars 34 facing the power-off protection device 2. This seal comprises a moisture-absorbing absorbent strip 35, such as a non-woven fabric. The absorbent strip 35 is fixedly attached to the four drive bars 34 and has an overall rectangular ring shape. To better monitor the operation of the power-off protection device 2 and the water absorption of the absorbent strip 35, an observation window 36 is provided on the bottom wall of the dust cover 3 for viewing the interior.

[0046] A locking member 37 for securing the dust cover 3 to the injection molded body 1 is mounted on the outer wall of the dust cover 3. The locking member 37 comprises a locking housing 371, a locking spring 372 secured within the locking housing 371, and a locking ball 373 connected to the end of the locking spring 372. The locking member 37 as a whole is arranged perpendicular to the length of the mounting groove. The injection molded body 1 has a locking ring groove 15 on one side of the sealing ring groove, the depth of which is less than that of the sealing ring groove. Locking grooves 151 corresponding to the locking member 37 and for the locking ball 373 to engage are spaced apart on the sidewalls of the locking ring groove 15.

[0047] In order to facilitate the maintenance and replacement of the power-off protection device 2, the injection molded body 1 is further provided with a positioning column 16 above the fixing ring 31. The positioning column 16 is integral with the injection molded body 1, or can be fixed to the injection molded body 1 by a bolt. The length from the end of the positioning column 16 to the side wall of the injection molded body 1 is less than the length of the drive bar 34 inserted into the horizontal groove 142, so that when maintenance and replacement are required, the dust cover 3 is pulled horizontally from the injection molded body 1, and after the drive bar 34 is separated from the horizontal groove 142, it is rotated upward along the fixing ring 31 as the axis to the top of the power-off protection device 2, and then pushed toward the side wall of the injection molded body 1 for a certain distance, so that the positioning column 16 has a positioning effect on the downward rotation of the dust cover 3.

[0048] The implementation principle of an automatic power-off protection injection molding machine in an embodiment of the present application is as follows: the dust cover 3 is positioned by cooperating with the fixing ring 31 and the fixing column 11 on the injection molding body 1, and then the dust cover 3 is pushed in along the axis of the fixing column 11, so that the sealing airbag 33 is inserted into the sealing ring groove. At the same time, the locking piece 37 cooperates with the locking groove 151, and the driving bar 34 pushes the pushing column 5, and the pushing column 5 drives the pressing protrusion 4 to slide, thereby realizing the deformation of the sealing airbag 33.

[0049] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An automatic power-off protection injection molding machine, comprising an injection molding body (1) and a power-off protection device (2) arranged on the injection molding body (1), characterized in that: A dust cover (3) for covering the power-off protection device (2) is detachably provided on the injection molded body (1), the dust cover (3) and the injection molded body (1) are sealed together, a waterproof sealing structure is provided inside the dust cover (3), and the waterproof sealing structure is provided on a side close to the power-off protection device (2) away from the sealed connection between the dust cover (3) and the injection molded body (1).

2. The automatic power-off protection injection molding machine according to claim 1, characterized in that: An installation groove (32) is provided on the outer edge of the dust cover (3), and a sealing member is provided in the installation groove (32). The injection molded body (1) has a sealing groove (12) corresponding to the sealing member.

3. The automatic power-off protection injection molding machine according to claim 2, characterized in that: The sealing member is a sealing airbag (33), and the bottom wall of the sealing groove (12) is provided with a pressing ridge (4) for pressing the sealing airbag (33).

4. The automatic power-off protection injection molding machine according to claim 3, characterized in that: The pressing rib (4) is slidably mounted on the injection molding body (1), and a driving bar (34) for driving the pressing rib (4) is provided on the dust cover (3).

5. The automatic power-off protection injection molding machine according to claim 4, characterized in that: The injection molding body (1) has a sliding groove (13) for the sliding arrangement of the pressing rib (4), and the injection molding body (1) is provided with a connecting groove (14) connected to the sliding groove (13); the end of the pressing rib (4) is provided with a first inclined surface (43), and a push column (5) with the first inclined surface (43) is slidingly installed in the connecting groove (14), and the push column (5) is provided with a second inclined surface (51) on the side away from the first inclined surface (43), and the driving bar (34) abuts against the second inclined surface (51) to drive the push column (5) to move toward the first inclined surface (43).

6. The automatic power-off protection injection molding machine according to claim 5, characterized in that: A limiting strip (41) is provided on the side wall of the pressing convex strip (4), and a first elastic member (42) for resetting the pressing convex strip (4) is provided between the limiting strip (41) and the inner wall of the communicating groove (14). The pushing column (5) is sleeved with a second elastic member (53) for resetting, and the pushing column (5) and the inner wall of the communicating groove (14) are provided with limiting portions (52) for abutting the two ends of the second elastic member (53).

7. The automatic power-off protection injection molding machine according to claim 5, characterized in that: The communication groove (14) is located on a side of the sealing groove (12) close to the power-off protection device (2), and the waterproof sealing structure is provided on the driving bar (34). The waterproof sealing structure is an absorption bar (35) that is in contact with the driving bar (34) and faces the power-off protection device (2).

8. The automatic power-off protection injection molding machine according to claim 5, characterized in that: The injection molded body (1) is provided with a fixing column (11), the dust cover (3) has a fixing ring (31) sleeved on the fixing column (11), the dust cover (3) is provided with a locking member (37) inserted into the injection molded body (1), the locking member (37) includes a locking shell (371), a locking spring (372) and a locking ball (373), and the injection molded body (1) has a locking groove (151) for locking and matching the locking ball (373).

9. The automatic power-off protection injection molding machine according to claim 8, characterized in that: The injection molded body (1) is provided with a positioning column (16) on the top of the fixing column (11) for limiting the rotation of the dust cover (3), and the length of the positioning column (16) is less than the length of the driving bar (34) inserted into the connecting groove (14).

10. The automatic power-off protection injection molding machine according to claim 1, characterized in that: The dust cover (3) is provided with an observation window (36) connected to the inner cavity.

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