Spraying-free plastic injection molding processing equipment

Abstract

The utility model belongs to the technical field of plastic processing, and particularly relates to spraying-free plastic injection molding processing equipment which comprises a bottom plate and further comprises a fixing frame, the bottom end of the fixing frame is fixedly installed at the top of the bottom plate, the top end of the fixing frame is detachably sleeved with an installation frame, and a lower die holder is fixedly installed at the top end of the installation frame; the lower die mounting assembly comprises a first electric push rod, a limiting block, two limiting rods and two springs, and the bottom end of the first electric push rod is fixedly mounted at the top of the bottom plate. And the use convenience and machining efficiency of the upper mold base and the lower mold base are improved, the upper mold base and the lower mold base can be conveniently disassembled, assembled, maintained or replaced, spraying-free plastic products of different models can be conveniently subjected to injection molding machining, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, and in particular to a paint-free plastic injection molding equipment. Background Technology

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of injection molding include high production speed and efficiency, automated operation, a wide variety of designs and shapes (from simple to complex), and sizes ranging from large to small. It also produces dimensionally accurate products, facilitates product updates and replacements, and can create complex shapes. Injection molding is suitable for mass production and molding processes involving complex shapes.

[0003] In the prior art, Chinese patent application number 202322745661.4 discloses a paint-free plastic fence injection mold for municipal road engineering. This utility model includes an upper mold base and a lower mold base, with upper and lower mold core grooves respectively provided in the upper and lower mold bases. An upper flow channel and a lower flow channel are also provided in the upper and lower flow channels, respectively, with upper and lower injection ports respectively. A limiting block is inserted into the upper mold base, and a slanted locking part is provided on one side of the limiting block. Simultaneously, the slanted locking part inserts into a slot provided in the lower mold base. A positioning block and a positioning plate are provided on the inner side of the upper mold base, and a positioning groove and a positioning plate groove are provided in the lower mold base. This utility model utilizes simultaneous injection molding in the upper and lower mold bases, resulting in uniform forming of the internal fence wall. The slanted force of the slanted locking part opens the mold, thus preventing the molded part from tearing during mold opening and preventing cracking and damage due to localized weaknesses during use, thereby increasing the service life of the fence.

[0004] However, the above technical solutions require manual operation of multiple positioning pins to fix the mold between the upper mold base and the lower mold base, which is time-consuming and labor-intensive. Secondly, when the upper mold base and the lower mold base are separated, manual operation of the limiting block is required to complete the mold separation, which is not convenient to operate and cannot meet the needs of use. Therefore, this application proposes a paint-free plastic injection molding equipment to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to solve the shortcomings of the existing technology, which requires manual operation of multiple positioning pins to fix the upper mold base and the lower mold base when closing the mold, which is time-consuming and labor-intensive. Secondly, when the upper mold base and the lower mold base are separated, manual operation of the limiting block is required to complete the mold separation, which is not convenient to operate and cannot meet the needs of use. Therefore, a paint-free plastic injection molding equipment is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A paint-free plastic injection molding processing equipment includes a base plate, and the processing equipment further includes:

[0008] A fixed frame, the bottom end of which is fixedly installed on the top of the base plate, and the top end of which is detachably fitted with an installation frame, and the top end of the installation frame is fixedly installed with a lower mold base;

[0009] The lower mold mounting assembly includes: a first electric push rod, a limiting block, two limiting rods, and two springs. The bottom end of the first electric push rod is fixedly mounted on the top of the base plate. The bottom of the limiting block is fixedly mounted on the output shaft of the first electric push rod. The ends of the two limiting rods that are far apart from each other pass through the left inner wall and the right inner wall of the fixed frame, respectively, and are slidably connected to the fixed frame. Limiting holes are provided on the left inner wall and the right inner wall of the mounting frame. The ends of the two limiting rods that are far apart from each other pass through the two limiting holes and are slidably connected to the inner walls of the two limiting holes. The ends of the two springs that are close to each other are fixedly mounted on the top of the two limiting rods, and the ends of the two springs that are far apart from each other are fixedly mounted on the left inner wall and the right inner wall of the fixed frame, respectively.

[0010] The bracket has its bottom end fixedly installed on the top of the base plate. A second electric push rod is fixedly installed on the inner wall of the top of the bracket. An installation plate is fixedly installed on the output shaft of the second electric push rod. An upper mold base is fixedly installed at the bottom of the installation plate. The upper mold base cooperates with the lower mold base. Slots are provided on the left and right sides of the upper mold base.

[0011] The upper mold mounting assembly is disposed on the top of the mounting plate and mates with two slots respectively.

[0012] As a preferred embodiment of this utility model, four positioning rods are fixedly installed on the outer side of the upper mold base, and four positioning rings are fixedly installed on the outer side of the lower mold base. The bottom end of the positioning rod passes through the corresponding positioning ring and is slidably connected to the inner wall of the positioning ring.

[0013] As a preferred embodiment of this utility model, two sliding rods are fixedly installed on the top of the mounting plate, and sliding holes are provided on the left and right inner walls of the bracket. The ends of the two sliding rods that are far apart from each other pass through the two sliding holes and are slidably connected to the inner walls of the sliding holes.

[0014] As a preferred embodiment of this utility model, the upper mold mounting assembly includes two third electric push rods, two moving rods, and two insert blocks. The two third electric push rods are fixedly mounted on the top of the mounting plate, the top ends of the two moving rods are respectively fixedly mounted on the output shafts of the two third electric push rods, and the two insert blocks are respectively fixedly mounted on the bottom ends of the two moving rods. One end of the insert block can be detached and inserted into the corresponding slot.

[0015] As a preferred embodiment of this utility model, two stabilizing rings are fixedly installed on the top of the mounting plate, and the stabilizing rings are slidably sleeved on the output shaft of the corresponding third electric push rod.

[0016] As a preferred embodiment of this utility model, a sealing gasket is provided between the upper mold base and the lower mold base.

[0017] Beneficial effects:

[0018] 1. By fitting the mounting frame at the bottom of the lower mold base onto the fixed frame, starting the first electric push rod can drive the limit block to move upward. At this time, the limit block can squeeze the two limit rods away from each other and compress the two springs. Then, the two limit rods can be inserted into the two limit holes, thereby achieving the installation and fixation between the mounting frame and the fixed frame, and thus achieving the installation and fixation of the lower mold base.

[0019] 2. By activating the second electric push rod, the upper mold base can be moved up and down to close and open with the lower mold base, which facilitates the use of the upper and lower mold bases and improves processing efficiency;

[0020] 3. By activating the two third electric push rods, the two moving rods and the two insert blocks can be moved closer or further apart, thereby enabling the insertion and separation of the insert blocks and the slots, which allows for the quick assembly and disassembly of the upper mold base.

[0021] This utility model achieves rapid mold closing and opening between the upper and lower mold bases through a simple structure, improving the ease of use and processing efficiency of the upper and lower mold bases. It also facilitates the disassembly, maintenance, or replacement of the upper and lower mold bases, and enables injection molding of different models of paint-free plastic products, making it highly practical. Attached Figure Description

[0022] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0023] Figure 2 This is a three-dimensional sectional view of the structure of the fixing frame and the mounting frame of this utility model;

[0024] Figure 3 This is a three-dimensional structural diagram of the upper mold base, positioning rod, mounting plate, sliding rod, third electric push rod, and moving rod of this utility model;

[0025] Figure 4 Appendix of this utility model Figure 3 Three-dimensional diagram of the structure of part A.

[0026] In the diagram: 1. Base plate; 2. Fixing frame; 3. Mounting frame; 4. Lower mold base; 5. First electric push rod; 6. Limiting block; 7. Limiting hole; 8. Limiting rod; 9. Spring; 10. Upper mold base; 11. Positioning rod; 12. Positioning ring; 13. Bracket; 14. Second electric push rod; 15. Mounting plate; 16. Sliding rod; 17. Sliding hole; 18. Third electric push rod; 19. Moving rod; 20. Insert block; 21. Slot; 22. Stabilizing ring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Example

[0029] Reference Figures 1-4 A paint-free plastic injection molding processing equipment includes a base plate 1, and the processing equipment further includes:

[0030] Fixed frame 2, the bottom end of fixed frame 2 is fixedly installed on the top of base plate 1, and the top end of fixed frame 2 is detachably fitted with mounting frame 3, and the top end of mounting frame 3 is fixedly installed with lower mold base 4.

[0031] The lower mold mounting assembly includes: a first electric push rod 5, a limiting block 6, two limiting rods 8, and two springs 9. The bottom end of the first electric push rod 5 is fixedly mounted on the top of the base plate 1. The bottom of the limiting block 6 is fixedly mounted on the output shaft of the first electric push rod 5. The ends of the two limiting rods 8 that are far apart from each other pass through the left inner wall and the right inner wall of the fixed frame 2, respectively, and are slidably connected to the fixed frame 2. Limiting holes 7 are opened on the left inner wall and the right inner wall of the mounting frame 3. The ends of the two limiting rods 8 that are far apart from each other pass through the two limiting holes 7, respectively, and are slidably connected to the inner walls of the two limiting holes 7. The ends of the two springs 9 that are close to each other are fixedly mounted on the top of the two limiting rods 8, respectively. The ends of the two springs 9 that are far apart from each other are fixedly mounted on the left inner wall and the right inner wall of the fixed frame 2, respectively.

[0032] The bracket 13 is fixedly installed at the bottom of the base plate 1. A second electric push rod 14 is fixedly installed on the inner wall of the top of the bracket 13. An installation plate 15 is fixedly installed on the output shaft of the second electric push rod 14. An upper mold base 10 is fixedly installed at the bottom of the installation plate 15. The upper mold base 10 cooperates with the lower mold base 4. Slots 21 are provided on the left and right sides of the upper mold base 10.

[0033] The upper mold mounting assembly is located on the top of the mounting plate 15 and mates with two slots 21 respectively.

[0034] With the above structure: by fitting the mounting frame 3 at the bottom of the lower mold base 4 onto the fixed frame 2, the first electric push rod 5 can be activated to drive the limiting block 6 to move upward. At this time, the limiting block 6 can squeeze the two limiting rods 8 away from each other and compress the two springs 9. Then, the two limiting rods 8 can be inserted into the two limiting holes 7, thereby realizing the installation and fixation between the mounting frame 3 and the fixed frame 2, and thus realizing the installation and fixation of the lower mold base 4. In addition, by activating the second electric push rod 14, the upper mold base 10 can be driven to move up and down and close and open the mold with the lower mold base 4, which can facilitate the use of the upper mold base 10 and the lower mold base 4 and improve the processing efficiency.

[0035] As a preferred embodiment of this utility model, four positioning rods 11 are fixedly installed on the outer side of the upper mold base 10, and four positioning rings 12 are fixedly installed on the outer side of the lower mold base 4. The bottom end of the positioning rod 11 passes through the corresponding positioning ring 12 and is slidably connected to the inner wall of the positioning ring 12. Through the insertion between the positioning rod 11 and the positioning ring 12, it is easy to make stable docking between the upper mold base 10 and the lower mold base 4.

[0036] As a preferred embodiment of this utility model, two sliding rods 16 are fixedly installed on the top of the mounting plate 15. Sliding holes 17 are provided on the left and right inner walls of the bracket 13. The ends of the two sliding rods 16 that are far apart from each other pass through the two sliding holes 17 and are slidably connected to the inner walls of the sliding holes 17. Through the sliding limit cooperation between the sliding rods 16 and the sliding holes 17, the lifting stability of the upper mold base 10 can be improved.

[0037] As a preferred embodiment of this utility model, the upper mold mounting assembly includes two third electric push rods 18, two moving rods 19, and two insert blocks 20. The two third electric push rods 18 are fixedly mounted on the top of the mounting plate 15. The top ends of the two moving rods 19 are respectively fixedly mounted on the output shafts of the two third electric push rods 18. The two insert blocks 20 are respectively fixedly mounted on the bottom ends of the two moving rods 19. One end of the insert block 20 can be detached and inserted into the corresponding slot 21. By activating the two third electric push rods 18, the two moving rods 19 and the two insert blocks 20 can be moved closer to each other or further away from each other, thereby realizing the insertion and separation between the insert block 20 and the slot 21. At this time, the upper mold base 10 can be quickly disassembled and assembled.

[0038] As a preferred embodiment of this utility model, two stabilizing rings 22 are fixedly installed on the top of the mounting plate 15. The stabilizing rings 22 are slidably sleeved on the output shaft of the corresponding third electric push rod 18. By setting the stabilizing rings 22, the transmission stability of the output shaft of the third electric push rod 18 can be improved.

[0039] As a preferred embodiment of this utility model, a sealing gasket is provided between the upper mold base 10 and the lower mold base 4. By providing the sealing gasket, the mold closing sealing performance between the upper mold base 10 and the lower mold base 4 can be improved.

[0040] It should be noted that the specific models of the first electric actuator 5, the second electric actuator 14, and the third electric actuator 18 used shall be selected by those skilled in the art. Furthermore, the first electric actuator 5, the second electric actuator 14, and the third electric actuator 18 mentioned above are all existing technologies and will not be elaborated upon in this solution.

[0041] The lower mold base 4 and the upper mold base 10 adopt existing technology and can be directly used with the main structure of the device of the patent application number 202322745661.4, so they will not be described in detail.

[0042] The working principle of this utility model is as follows: In use, firstly, the first electric push rod 5, the second electric push rod 14, and the third electric push rod 18 are connected to an external power source. Then, by fitting the mounting frame 3 at the bottom of the lower mold base 4 onto the fixed frame 2, starting the first electric push rod 5 can drive the limiting block 6 to move upward. At this time, the limiting block 6 can squeeze the two limiting rods 8 away from each other and compress the two springs 9. Then, the two limiting rods 8 can be inserted into the two limiting holes 7, thereby realizing the installation and fixation between the mounting frame 3 and the fixed frame 2, and thus realizing the installation and fixation of the lower mold base 4. Here, by starting the two third electric push rods 18, the two moving rods 19 and the two insert blocks 20 can move closer or further away from each other, thereby realizing the insertion and separation between the insert blocks 20 and the slots 21. This allows for the quick assembly and disassembly of the upper mold base 10. In addition, by starting the second electric push rod 14, the upper mold base 10 can be moved up and down to close and open the mold with the lower mold base 4, which facilitates the use of the upper mold base 10 and the lower mold base 4 and improves processing efficiency.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A spray-free plastic injection-molding processing apparatus comprising a base plate (1), characterized in that, The processing equipment also includes: The bottom end of the fixed frame (2) is fixedly installed on the top of the base plate (1), and the top end of the fixed frame (2) is detachably fitted with an installation frame (3), and the top end of the installation frame (3) is fixedly installed with a lower mold base (4). The lower mold mounting assembly includes: a first electric push rod (5), a limiting block (6), two limiting rods (8) and two springs (9). The bottom end of the first electric push rod (5) is fixedly mounted on the top of the base plate (1). The bottom of the limiting block (6) is fixedly mounted on the output shaft of the first electric push rod (5). The ends of the two limiting rods (8) that are far apart from each other pass through the left inner wall and the right inner wall of the fixed frame (2) respectively and are slidably connected to the fixed frame (2). The left inner wall and the right inner wall of the mounting frame (3) are provided with limiting holes (7). The ends of the two limiting rods (8) that are far apart from each other pass through the two limiting holes (7) respectively and are slidably connected to the inner walls of the two limiting holes (7). The ends of the two springs (9) that are close to each other are fixedly mounted on the top of the two limiting rods (8). The ends of the two springs (9) that are far apart from each other are fixedly mounted on the left inner wall and the right inner wall of the fixed frame (2) respectively. The bracket (13) is fixedly installed at the bottom of the base plate (1) and a second electric push rod (14) is fixedly installed on the inner wall of the top of the bracket (13). A mounting plate (15) is fixedly installed on the output shaft of the second electric push rod (14). An upper mold base (10) is fixedly installed at the bottom of the mounting plate (15). The upper mold base (10) cooperates with the lower mold base (4). Slots (21) are provided on the left and right sides of the upper mold base (10). The upper mold mounting assembly is located on the top of the mounting plate (15) and is respectively engaged with two slots (21).

2. A sprayless plastic injection molding processing apparatus according to claim 1, characterized by, Four positioning rods (11) are fixedly installed on the outer side of the upper mold base (10), and four positioning rings (12) are fixedly installed on the outer side of the lower mold base (4). The bottom end of the positioning rod (11) passes through the corresponding positioning ring (12) and slides to connect with the inner wall of the positioning ring (12).

3. A sprayless plastic injection molding apparatus as defined in claim 1, wherein, Two sliding rods (16) are fixedly installed on the top of the mounting plate (15). Sliding holes (17) are provided on the left and right inner walls of the bracket (13). The ends of the two sliding rods (16) that are far apart from each other pass through the two sliding holes (17) and are slidably connected to the inner walls of the sliding holes (17).

4. A sprayless plastic injection molding apparatus as defined in claim 1, wherein, The upper mold mounting assembly includes two third electric push rods (18), two moving rods (19), and two inserts (20). The two third electric push rods (18) are fixedly mounted on the top of the mounting plate (15). The top ends of the two moving rods (19) are respectively fixedly mounted on the output shafts of the two third electric push rods (18). The two inserts (20) are respectively fixedly mounted on the bottom ends of the two moving rods (19). One end of the insert (20) can be detached and inserted into the corresponding slot (21).

5. A sprayless plastic injection molding apparatus as defined in claim 4, wherein, Two stabilizing rings (22) are fixedly installed on the top of the mounting plate (15), and the stabilizing rings (22) are slidably sleeved on the output shaft of the corresponding third electric push rod (18).

6. A sprayless plastic injection molding apparatus as defined in claim 1, wherein, A sealing gasket is provided between the upper die holder (10) and the lower die holder (4).

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