Low-pressure injection molding device for transmission shaft protective sleeve

Abstract

The utility model discloses a low-pressure injection molding device for a transmission shaft protective sleeve, and belongs to the field of transmission shaft protective sleeve injection molding. Comprising a body; a machining area is formed in the front end of the main body, an adaptive machining mechanism is mounted in the machining area, a side mounting frame is fixedly arranged on one side of the rear end of the main body, and an alignment injection molding mechanism is mounted in the side mounting frame. The low-pressure injection molding device has the beneficial effects that in the operation process of the low-pressure injection molding device main body, personnel can start the hydraulic cylinder in advance, the connecting and mounting guide frame connected with the end of the hydraulic cylinder can drive the upper mold to be matched with the guide of the guide rod to descend under the jacking pressure of the extending end of the hydraulic cylinder, and in the descending process of the connecting and mounting guide frame, the lower mold is not damaged. The positioning rods at the four corners of the bottom end of the upper mold can be clamped into the positioning grooves in the four corners of the upper portion of the lower mold in an aligned mode, the embedded blocks arranged opposite to the upper mold and the lower mold can also be clamped into the opposite embedded grooves, and therefore an injection molding cavity can be formed between the protective sleeve mold shells arranged in the middles of the embedded blocks and the protective sleeve mold blocks of the protective sleeve mold shells.

Description

Technical Field

[0001] This application relates to the field of injection molding of drive shaft protective sleeves, and more specifically, to a low-pressure injection molding device for drive shaft protective sleeves. Background Technology

[0002] Drive shaft protective sleeves can be used on mechanical drive shafts in most fields. The protective sleeve can prevent the drive shaft from being impacted, worn and corroded by the outside world, and can also play a role in dust prevention and rust prevention. Low-pressure injection molding equipment is required in the processing of drive shaft protective sleeves.

[0003] In the production and processing of drive shaft protective sleeves, most existing low-pressure injection molding equipment has a single specification of upper and lower molds that can only be used to produce protective sleeves of the same size. Even if some equipment can change the upper and lower molds, the change operation still needs to be done manually. The whole process is time-consuming and labor-intensive, and personnel also need to prepare upper and lower molds of different specifications and sizes, which is quite complicated. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] In order to solve the technical problems mentioned in the background section above, some embodiments of this application provide a low-pressure injection molding device for drive shaft protective sleeves. Due to the function of the adapted processing mechanism, it has the beneficial effect of dealing with drive shaft protective sleeves of different specifications during the working process or installation process.

[0006] A low-pressure injection molding device for a drive shaft protective sleeve includes: a main body; a processing area is provided at the front end of the main body, and an adapter processing mechanism is installed inside the processing area; a side mounting bracket is fixed on one side of the rear end of the main body, and an alignment injection molding mechanism is installed inside the side mounting bracket; a raw material mounting bracket is provided above the side mounting bracket at the rear end of the main body; the adapter processing mechanism includes staggered processing components, and the staggered processing components are installed in the upper and lower parts inside the processing area; the staggered processing components include a mounting tray and a connecting guide, and adapter components are installed inside the mounting tray and the connecting guide.

[0007] Furthermore, the staggered processing assembly includes a first motor, which is installed in the lower center of the processing area. A transmission rod is installed at the output end of the first motor, and a mounting plate is fixed at the end of the transmission rod. A hydraulic cylinder is installed in the upper center of the processing area, and a connecting guide is connected to the extended end of the hydraulic cylinder. Guide rods are fixed on both sides of the center of the processing area.

[0008] Furthermore, the guide rod and the connecting guide frame are connected by a movable guide connection.

[0009] Furthermore, the adapter component includes a lower mold, which is disposed on both sides above the mounting plate. The lower mold has positioning grooves at its four upper corners and an insert groove in its middle part. Protective sleeve modules are fixed inside the multiple insert grooves. An upper mold is fixed below the connecting guide frame, and positioning rods are fixed at its four lower corners. Insert blocks are disposed below the upper mold, and protective sleeve mold shells are fixed inside the insert blocks. Injection guides are provided on one side of the multiple insert grooves and insert blocks.

[0010] Furthermore, the injection guide opening on one side of the insert block is connected to the protective sleeve mold shell, and the internal dimensions of the protective sleeve mold shell are larger than the external dimensions of the protective sleeve module.

[0011] Furthermore, the alignment injection molding mechanism includes a fixed plate, and a first displacement component is installed on the inner and outer sides of the fixed plate. The first displacement component includes a first lead screw sleeve, and a mounting bracket is fixed above the first lead screw sleeve. A second displacement component is installed on the inner and outer sides of the mounting bracket. The second displacement component includes a second lead screw sleeve, and an injection head is installed above the second lead screw sleeve. The end of the injection head is connected to a first connecting pipe, and the end of the first connecting pipe is connected to a switching valve. The other end of the switching valve is connected to a telescopic flow pipe, and the end of the telescopic flow pipe is connected to a gear pump. The other end of the gear pump is connected to a second connecting pipe, and the other end of the second connecting pipe is connected to the raw material rack.

[0012] Furthermore, the first displacement component includes a second motor, which is mounted on the outer side of the fixed plate. The output end of the second motor is connected to a first transmission screw, and a first screw sleeve is screwed around one side of the first transmission screw. A first slide rod for guiding the movement of the mounting bracket is fixed on the other side of the inner side of the fixed plate.

[0013] Furthermore, the second displacement component includes a third motor, which is mounted on one side of the mounting frame. The output end of the third motor is connected to a second transmission screw, and a second screw sleeve is screwed around one side of the second transmission screw. A second slide rod for guiding the movement of the injection head is fixed on the other side of the mounting frame.

[0014] The beneficial effects of this application are as follows: It provides a low-pressure injection molding device for a drive shaft protective sleeve. During the main operation of the low-pressure injection molding device, the operator can pre-start the hydraulic cylinder. Under the pressure of its extended end, the connecting guide frame connected to its end will lower the upper mold along with the guide rod. During its descent, the positioning rods at the four corners of the bottom of the upper mold will align and engage with the positioning grooves at the four corners of the upper mold. The insert blocks, which are respectively set opposite to the two molds, will also engage with the opposite insert grooves. Thus, the protective sleeve mold shell, which is set in the middle of the insert block, will form an injection-moldable cavity with the protective sleeve module. It is worth mentioning that... Yes, the dimensions of the protective sleeve mold shell and protective sleeve module in each pair of insert blocks and insert slots are different, thus adapting to the processing of most different specifications of drive shaft protective sleeve models. In this state, the operator can use the adjustable injection head in the alignment injection mechanism to align and insert it into the injection guide provided on one side of the injection cavity to be processed for low-pressure injection molding. After the injection is completed, the operator can start the first motor to make the transmission rod and its end mounting plate rotate. Thus, the two lower molds above the mounting plate can perform staggered injection molding operations without delaying the operator to unload the molded drive shaft protective sleeve, thereby improving injection molding efficiency.

[0015] After a cavity is formed between the upper and lower molds and between multiple protective sleeve shells and protective sleeve modules, the operator can start the third motor to rotate the second transmission screw according to the corresponding specification of the transmission shaft protective sleeve to be processed. At this time, the second screw sleeve acting with the screw can carry the injection head to move laterally with the second slide guide, thereby adjusting the injection head to stop on the side of the cavity of the corresponding size transmission shaft protective sleeve. Then, the operator starts the second motor to rotate the first transmission screw. At this time, the first screw sleeve acting with the screw can carry the mounting bracket, injection head and some components to move back and forth, thereby ensuring that the input end of the injection head can be inserted into the cavity entrance along the injection guide. At the same time, the gear pump is started and the switching valve is opened. Under the guidance of the second connecting pipe, the telescopic flow pipe and the first connecting pipe, the injection material in the raw material rack can be squeezed into the corresponding cavity under low pressure, thereby achieving the purpose of injection molding. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0017] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0018] In the attached diagram:

[0019] Figure 1This is an overall schematic diagram based on an embodiment of this application;

[0020] Figure 2 This is a partial internal view diagram in front view according to an embodiment of this application;

[0021] Figure 3 This is a three-dimensional schematic diagram of the adapter components according to an embodiment of this application;

[0022] Figure 4 This is a top view of the internal structure of the side mount according to an embodiment of this application.

[0023] Figure label:

[0024] 1. Main body;

[0025] 2. Processing area;

[0026] 3. Adaptive processing mechanism; 31. Interlaced processing components; 311. First motor; 312. Transmission rod; 313. Mounting tray; 314. Hydraulic cylinder; 315. Connecting guide frame; 316. Guide rod; 32. Adaptive components; 321. Lower mold; 322. Positioning groove; 323. Inserting groove; 324. Protective sleeve module; 325. Upper mold; 326. Positioning rod; 327. Inserting block; 328. Protective sleeve mold shell; 329. Injection guide;

[0027] 4. Side mounting bracket;

[0028] 5. Alignment injection molding mechanism; 51. Fixed plate; 52. First displacement assembly; 521. Second motor; 522. First transmission screw; 523. First screw sleeve; 524. First slide rod; 53. Mounting bracket; 54. Second displacement assembly; 541. Third motor; 542. Second transmission screw; 543. Second screw sleeve; 544. Second slide rod; 55. Injection head; 56. First connecting pipe; 57. Switching valve; 58. Telescopic flow pipe; 59. Gear pump; 510. Second connecting pipe;

[0029] 6. Loading raw materials onto racks. Detailed Implementation

[0030] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0031] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0032] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0033] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0034] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] like Figure 1-4A low-pressure injection molding device for a drive shaft protective sleeve includes: a main body 1; a processing area 2 is provided at the front end of the main body 1, and an adaptation processing mechanism 3 is installed inside the processing area 2; a side mounting bracket 4 is fixedly provided on one side of the rear end of the main body 1, and an alignment injection molding mechanism 5 is installed inside the side mounting bracket 4; a raw material mounting bracket 6 is provided above the side mounting bracket 4 at the rear end of the main body 1; the adaptation processing mechanism 3 includes an interleaved processing component 31, and the interleaved processing component 31 is installed in the upper and lower parts inside the processing area 2; the interleaved processing component 31 includes a first motor 311, and the first motor 311 is installed in the lower middle part of the processing area 2; a transmission rod 312 is installed at the output end of the first motor 311, and a mounting plate 313 is fixedly provided at the end of the transmission rod 312; and a hydraulic cylinder is installed in the upper middle part of the processing area 2. 314, and the extended end of the hydraulic cylinder 314 is connected to the connecting guide frame 315. Guide rods 316 are fixed on both sides of the middle part of the processing area 2. The guide rods 316 and the connecting guide frame 315 are connected by a movable guide. Adaptor components 32 are installed on the inner side of the mounting plate 313 and the connecting guide frame 315. The adapter components 32 include a lower mold 321, which is located on both sides above the mounting plate 313. Positioning grooves 322 are opened at the four corners of the upper part of the lower mold 321. An insert groove 323 is provided in the middle part of the lower mold 321. Protective sleeve modules 324 are fixed inside the multiple insert grooves 323. An upper mold 325 is fixed below the connecting guide frame 315. Positioning rods 326 are fixed at the four corners of the lower part of the upper mold 325. A set of positioning rods 326 is provided below the upper mold 325. An insert block 327 is provided, and a protective sleeve mold shell 328 is fixed inside the insert block 327. Multiple insert slots 323 and one side of the insert block 327 are provided with injection guide ports 329. The injection guide ports 329 on one side of the insert block 327 are connected to the protective sleeve mold shell 328. The internal dimensions of the protective sleeve mold shell 328 are larger than the external dimensions of the protective sleeve module 324. During the operation of the low-pressure injection molding device body 1, the operator can pre-start the hydraulic cylinder 314. Under the pressure of its extended end, the connecting guide frame 315 connected to its end will lower the upper mold 325 in coordination with the guide rod 316. During its descent, the positioning rods 326 at the four corners of the bottom of the upper mold 325 will align and engage with the positioning grooves 322 at the four corners of the upper mold 321. The relatively separate insert blocks 327 will also engage with the opposing insert slots 323, thereby forming an injection-molded cavity between the protective sleeve mold shell 328 located in the middle of the insert block 327 and the protective sleeve module 324. It is worth mentioning that the dimensions of the protective sleeve mold shell 328 and the protective sleeve module 324 in each pair of insert blocks 327 and insert slots 323 are different, thus adapting to the processing of most different specifications of drive shaft protective sleeve models. In this state, the operator can use the adjustable injection head 55 in the alignment injection mechanism 5 to align and insert it into the injection guide 329 provided on one side of the injection cavity to be processed for low-pressure injection molding. After the injection is completed, the operator can start the first motor 311 to rotate the transmission rod 312 and its end mounting plate 313.Therefore, the two lower molds 321 mounted above the loading tray 313 can perform staggered injection molding operations, without delaying the unloading of the molding drive shaft protective sleeve, thereby improving injection molding efficiency.

[0036] Furthermore, the alignment injection molding mechanism 5 includes a fixed plate 51, and a first displacement assembly 52 is installed on the inner and outer sides of the fixed plate 51. The first displacement assembly 52 includes a second motor 521, which is installed on one side of the fixed plate 51. The output end of the second motor 521 is connected to a first transmission screw 522, and a first screw sleeve 523 is screwed around one side of the first transmission screw 522. A first slide rod 524 for guiding the movement of the mounting frame 53 is fixed on the other side of the inner side of the fixed plate 51, and a mounting frame 53 is fixed above the first screw sleeve 523. The second displacement assembly 54 is installed inside and outside the mounting frame 53. The second displacement component 54 includes a third motor 541, which is mounted on one side of the mounting bracket 53. The output end of the third motor 541 is connected to a second transmission screw 542, and a second screw sleeve 543 is screwed onto one side of the second transmission screw 542. A second slide rod 544 is fixedly mounted on the other side of the mounting bracket 53 to guide the movement of the injection head 55. An injection head 55 is mounted above the second screw sleeve 543. The end of the injection head 55 is connected to a first connecting pipe 56, and the end of the first connecting pipe 56 is connected to a switching valve 57. The other end of the switching valve 57 is connected to a telescopic flow pipe 58. Furthermore, a gear pump 59 is connected to the end of the telescopic flow pipe 58, and a second connecting pipe 510 is connected to the other end of the gear pump 59. The other end of the second connecting pipe 510 is connected to the raw material rack 6. After a cavity is formed between the multiple protective sleeve mold shells 328 and protective sleeve modules 324 between the upper mold 325 and the lower mold 321, the operator can start the third motor 541 to rotate the second transmission screw 542 according to the corresponding specification of the transmission shaft protective sleeve to be processed. At this time, the second screw sliding sleeve 543, which interacts with the screw, can carry the injection head 55 to make lateral displacement in coordination with the second sliding rod 544, thereby adjusting the dwell time of the injection head 55. On the side of the cavity of the corresponding size transmission shaft protective sleeve, the second motor 521 is then started by the operator to rotate the first transmission screw 522. At this time, the first screw sleeve 523, which interacts with the screw, can move back and forth along the mounting bracket 53, the injection head 55, and some components. This ensures that the input end of the injection head 55 can be inserted into the cavity entrance along the injection guide 329. At the same time, the gear pump 59 is started and the switching valve 57 is opened. Under the guidance of the second connecting pipe 510, the telescopic flow pipe 58, and the first connecting pipe 56, the injection material in the material rack 6 can be squeezed into the corresponding cavity under low pressure, thereby achieving the purpose of injection molding.

[0037] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A low-pressure injection molding device for a drive shaft protective sleeve, comprising: The main body (1) is characterized in that: a processing area (2) is provided at the front end of the main body (1), and an adaptation processing mechanism (3) is installed inside the processing area (2); a side mounting bracket (4) is fixed on one side of the rear end of the main body (1), and an alignment injection molding mechanism (5) is installed inside the side mounting bracket (4); a raw material mounting bracket (6) is provided above the side mounting bracket (4) at the rear end of the main body (1); the adaptation processing mechanism (3) includes an interleaved processing component (31), and the interleaved processing component (31) is installed in the upper and lower parts inside the processing area (2); the interleaved processing component (31) includes a mounting tray (313) and a connecting guide (315), and an adaptation component (32) is installed inside the mounting tray (313) and the connecting guide (315).

2. The low-pressure injection molding device for the drive shaft protective sleeve according to claim 1, characterized in that: The interlaced processing assembly (31) includes a first motor (311), which is installed in the lower middle part of the processing area (2). A transmission rod (312) is installed at the output end of the first motor (311), and a mounting plate (313) is fixed at the end of the transmission rod (312). A hydraulic cylinder (314) is installed in the upper middle part of the processing area (2), and a connecting guide frame (315) is connected to the extended end of the hydraulic cylinder (314). Guide rods (316) are fixed on both sides of the middle part of the processing area (2).

3. The low-pressure injection molding device for the drive shaft protective sleeve according to claim 2, characterized in that: The guide rod (316) and the connecting guide frame (315) are connected by a movable guide connection.

4. The low-pressure injection molding device for the drive shaft protective sleeve according to claim 1, characterized in that: The adapter component (32) includes a lower mold (321), which is disposed on both sides above the mounting plate (313). The lower mold (321) has positioning grooves (322) at its four upper corners and an insert groove (323) in the middle part. A protective sleeve module (324) is fixed inside the multiple insert grooves (323). An upper mold (325) is fixed below the connecting guide frame (315), and positioning rods (326) are fixed at the four lower corners of the upper mold (325). An insert block (327) is disposed below the upper mold (325), and a protective sleeve mold shell (328) is fixed inside the insert block (327). An injection guide (329) is disposed on one side of the multiple insert grooves (323) and the insert block (327).

5. The low-pressure injection molding device for the drive shaft protective sleeve according to claim 4, characterized in that: The injection guide (329) on one side of the insert block (327) is connected to the protective sleeve mold shell (328), and the internal dimensions of the protective sleeve mold shell (328) are larger than the external dimensions of the protective sleeve module (324).

6. The low-pressure injection molding device for the drive shaft protective sleeve according to claim 1, characterized in that: The alignment injection molding mechanism (5) includes a fixed plate (51), and a first displacement assembly (52) is installed on the inner and outer sides of the fixed plate (51). The first displacement assembly (52) includes a first lead screw sleeve (523), and a mounting bracket (53) is fixed above the first lead screw sleeve (523). A second displacement assembly (54) is installed on the inner and outer sides of the mounting bracket (53). The second displacement assembly (54) includes a second lead screw sleeve (543), and the upper part of the second lead screw sleeve (543) is... An injection head (55) is installed on the side. The end of the injection head (55) is connected to a first connecting pipe (56), and the end of the first connecting pipe (56) is connected to a switching valve (57). The other end of the switching valve (57) is connected to a telescopic flow pipe (58), and the end of the telescopic flow pipe (58) is connected to a gear pump (59). The other end of the gear pump (59) is connected to a second connecting pipe (510), and the other end of the second connecting pipe (510) is connected to the raw material rack (6).

7. The low-pressure injection molding device for the drive shaft protective sleeve according to claim 6, characterized in that: The first displacement component (52) includes a second motor (521), and the second motor (521) is mounted on the outer side of the fixed plate (51). The output end of the second motor (521) is connected to a first transmission screw (522), and a first screw sleeve (523) is screwed around one side of the first transmission screw (522). A first slide rod (524) for guiding the movement of the mounting bracket (53) is fixed on the other side of the inner side of the fixed plate (51).

8. The low-pressure injection molding device for the drive shaft protective sleeve according to claim 6, characterized in that: The second displacement component (54) includes a third motor (541), and the third motor (541) is mounted on one side of the mounting bracket (53). The output end of the third motor (541) is connected to a second transmission screw (542), and a second screw sleeve (543) is screwed around one side of the second transmission screw (542). A second slide rod (544) for guiding the movement of the injection head (55) is fixed on the other side of the interior of the mounting bracket (53).

Images