Polymer composite bushing injection molding equipment

Abstract

The application relates to the technical field of shaft sleeve processing, and particularly discloses a high-molecular composite shaft sleeve injection molding equipment, which comprises a rack, an injection mechanism, a heating mechanism, a driving mechanism and a movable mold piece. The movable mold piece comprises a moving part, the moving part is connected with a movable mold part, the movable mold part is provided with a sealing part, and the end of the movable mold part is provided with a gate. The equipment further comprises an ejection mechanism, which comprises a driving source and a scraping part. The driving source is connected to the moving part, the sealing part is connected to the driving source, the driving source can drive the sealing part to move on the movable mold part, so that the molded high-molecular composite shaft sleeve is separated from the movable mold part, the scraping part is installed on the sealing part, and when the sealing part drives the scraping part to move to the gate, the scraping part can extend into the gate. The high-molecular composite shaft sleeve injection molding equipment can automatically clean the residues in the gate area, and avoids the influence of manual cleaning operation mistakes on subsequent injection molding operations.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of shaft sleeve processing, in particular to a high-molecular composite shaft sleeve injection molding equipment. BACKGROUND

[0002] In modern industrial equipment, shaft sleeves are widely used in transmission, support and wear reduction links of various mechanical systems as key basic parts. Although the shaft sleeves made of traditional metal materials (such as bronze and steel alloy) have high strength and bearing capacity, they have inherent defects such as large density, the need for regular lubrication and maintenance, easy rusting and the generation of large noise during operation. The limitations of metal shaft sleeves are more significant in high-speed operation, corrosive environment or precision equipment with dust-free requirements. For example, in food processing machinery, oil leakage may contaminate the product, in marine equipment, salt spray corrosion may cause failure, and in the field of aerospace, the self-weight is too large to affect the energy efficiency ratio. Therefore, high-molecular composite shaft sleeves are developed. When the high-molecular composite shaft sleeves are produced, the raw materials are usually heated into a solution and then injected into a mold to form the high-molecular composite shaft sleeves.

[0003] A mechanical sealing mechanism of a bottle cap injection molding mold is disclosed in Chinese patent document CN102285071B, which comprises a core, a support plate and a lower shaft sleeve plate. Cooling liquid and a liquid inlet pipe are arranged in the core cavity of the core. Cooling liquid inlet channels and cooling liquid return channels are formed in the support plate. The cooling liquid inlet channels are communicated with the cooling liquid inlet pipe, and the cooling liquid return channels are communicated with the core cavity. The mechanical sealing mechanism comprises a rotating fixed sleeve, a pressure ring, a movable ring, a fixed ring and a spring. One end of the rotating fixed sleeve facing the lower shaft sleeve plate is fixed with the core. The other end of the rotating fixed sleeve facing the pressure ring is provided with a spring cavity. The pressure ring is arranged on the core and located between the rotating fixed sleeve and the movable ring. The movable ring is arranged on the core. A dynamic sealing ring is arranged on the side of the movable ring facing the pressure ring. The dynamic sealing ring is matched with the boss on the pressure ring. The fixed ring is arranged in the core rotation cavity of the support plate and matched with the outer wall of the core. A static sealing ring is arranged outside the fixed ring. One end of the spring is arranged in the spring cavity, and the other end of the spring is supported on the pressure ring. The side of the movable ring facing the fixed ring is matched with the fixed ring.

[0004] During use, when the power such as an oil motor drives the chain wheel of the transmission mechanism, the main shaft is driven by the chain wheel, the main shaft gear on the main shaft drives the core drive gear on the core which is engaged with the main shaft gear, so that the core rotates. The rotating fixed sleeve, the pressure ring and the movable ring of the mechanical sealing mechanism rotate with the core. In the dynamic state, the mechanical sealing mechanism seals the cooling liquid. When the core rotates, the inner wall of the bottle cap molded by the injection molding mechanism forms the internal thread of the bottle cap.

[0005] However, the above patent document also has the following deficiencies: The injection molding of the polymer composite shaft sleeve usually relies on high-pressure high-speed filling process, the melt needs to be forced to pass through the gate area with sharply narrowed cross section under the driving of injection pressure, and the shaft sleeve is formed after cooling, and a connecting residue is formed in the gate area, which is usually manually pulled out by the staff, which not only increases the workload of the staff, but also easily affects the subsequent shaft sleeve injection molding operation if the staff operation fails. SUMMARY

[0006] The polymer composite shaft sleeve injection molding equipment aims to solve the problem of manual cleaning of residues in the related art, which not only increases the workload of the staff, but also easily affects the subsequent shaft sleeve injection molding operation if the staff operation fails.

[0007] The polymer composite shaft sleeve injection molding equipment includes a rack, an injection mechanism, a heating mechanism, a driving mechanism, and a movable die part. The movable die part includes a moving part, a movable die part connected to the moving part, a sealing part installed on the movable die part, and a gate provided at the end of the movable die part. The equipment also includes an ejection mechanism, which includes a driving source and a scraping part. The driving source is connected to the moving part, and the sealing part is connected to the driving source. The driving source can drive the sealing part to move on the movable die part to separate the molded polymer composite shaft sleeve from the movable die part. The scraping part is installed on the sealing part. When the sealing part moves to the gate, the scraping part can extend into the gate.

[0008] Benefits: During the injection molding of the polymer composite shaft sleeve, the injection material is first delivered to the injection mechanism, then heated into a melt by the heating mechanism, and then delivered to the fixed die part and the movable die part in the closed die state. The melt is uniformly delivered to the fixed die part and the movable die part after passing through the gate, and the polymer composite shaft sleeve is formed after cooling. Then the driving mechanism is started to separate the movable die part from the fixed die part, so that the movable die part takes out the molded polymer composite shaft sleeve from the fixed die part. Finally, the driving source drives the sealing part to move away from the moving part, so that the molded polymer composite shaft sleeve is separated from the movable die part. When the sealing part moves to the gate, the scraping part extends into the gate and scrapes the residue inside the gate. At the same time, the sealing part continues to drive the scraping part to move away from the moving part, so that the residue in the gate area is cleaned by the scraping part, reducing the workload of the staff and avoiding the impact of manual cleaning operation failure on subsequent injection operation.

[0009] Preferably, the scraping part includes a scraping part one, a scraping part two, and a rebound part. The scraping part one and the scraping part two are both limitingly and slidingly connected to the sealing part. The scraping part two is rotationally connected to the scraping part one. The rebound part is connected between the scraping part one and the scraping part two.

[0010] The effect is that when the scraping part one drives the scraping part two to extend into the gate, the scraping part two will not rotate on the scraping part one before the scraping part two is separated from the sealing part, so that the scraping part two can scrape the residual in the gate, and when the sealing part continues to drive the scraping part one to move away from the moving part, the scraping part two can be turned over under the block of the residual, so as to avoid that the scraping part two cuts off the residual and causes poor cleaning effect of the residual, and the residual is pushed by the scraping part one, so that the residual is separated from the gate area of the movable mold part.

[0011] Preferably, a sliding groove is arranged on the sealing part, and the scraping part two and the scraping part one are limitedly and slidably connected in the sliding groove, and the scraping part two is in contact with the movable mold part.

[0012] The effect is that the scraping part two and the scraping part one can only move up and down in the sliding groove through the sliding groove.

[0013] Preferably, the demolding mechanism further comprises a sliding piece and an elastic piece, the sliding piece is limitedly and slidably connected with the moving part and the sliding groove respectively, and the elastic piece is connected between the sliding piece and the scraping part one, so that when the sealing part moves away from the moving part, the sliding piece can be driven to move towards the movable mold part, so that the sliding piece compresses the elastic piece.

[0014] The effect is that when the sealing part moves away from the moving part, the sliding piece is driven to move towards the movable mold part, and under the blocking action of the movable mold part on the scraping part two, the sliding piece compresses the elastic piece, so that the elastic piece is charged, and when the scraping part two moves to the gate, the elastic piece can push the scraping part one and the scraping part two to extend into the gate and scrape the residual in the gate.

[0015] Preferably, a guide groove is arranged on the moving part, and the sliding piece is limitedly and slidably connected in the guide groove, and the guide groove is triangular.

[0016] The effect is that when the sealing part drives the sliding piece to move away from the moving part, the sliding piece can be guided through the guide groove to move towards the movable mold part, and when the sealing part drives the sliding piece to move towards the moving part, the sliding piece can be guided through the guide groove to move away from the movable mold part and drive the scraping piece to reset.

[0017] Preferably, the sliding piece comprises a sliding part, a connecting sleeve and an elastic part one, the sliding part is limitedly and slidably connected in the guide groove, the connecting sleeve is sleeved on the sliding part, the connecting sleeve is limitedly and slidably connected in the sliding groove, and the elastic part one is connected between the sliding part and the connecting sleeve.

[0018] The effect is that when the sealing part drives the connecting sleeve to move away from the moving part, the elastic part I can pull the sliding part to slide in the guide groove, so that the sliding part moves towards the moving part under the guidance of the guide groove, so that the sliding part drives the connecting sleeve to move towards the moving part and compresses the elastic part. After the sliding part is affected by the inner wall of the guide groove and stops moving, the sealing part can drive the connecting sleeve to continue to move away from the moving part, and stretch the elastic part, so that the scraping part is away from the gate, so as to facilitate the subsequent scraping part to move away from the moving part and reset.

[0019] Preferably, the connecting sleeve is provided with two groups of locking holes, and the number of each group of locking holes is two.

[0020] Preferably, the sliding part further comprises a locking part and an elastic part II, the locking part is slidably connected to the sliding part, the locking part is provided with two, and the elastic part II is connected between the two locking parts. The two locking parts can be inserted into the two locking holes in the same group under the action of the elastic part II.

[0021] The effect is that through the cooperation of the locking part and the locking hole, the sealing part can drive the sliding part to move towards the moving part, and the sliding part and the connecting sleeve are locked, so that the sliding part can first drive the scraping part to move upwards and reset, and then the sliding part is blocked by the guide groove and resets.

[0022] Preferably, the two locking parts are arc-shaped at the ends away from each other.

[0023] The effect is that the locking part is arc-shaped at the end, so that the two locking parts can be switched between the two groups of locking holes.

[0024] Preferably, the gate is composed of three end-communicating through grooves.

[0025] The effect is that the gate is composed of three end-communicating through grooves, so that the solution can be uniformly delivered to the fixed die and the movable die.

[0026] The beneficial effects of the present application are:

[0027] 1. When the sealing part pulls the connecting sleeve to move away from the moving part, the two locking parts are inserted into one set of locking holes through the elastic part, so that the connecting sleeve drives the sliding part to move in the guide groove. Under the guidance of the guide groove, the sliding part drives the connecting sleeve to move towards the moving mold part, thereby driving the connecting sleeve to move towards the moving mold part and compressing the elastic element. When the scraper moves to the gate, the elastic element pushes the scraper to scrape the residue in the gate. At the same time, the sealing part drives the scraper to move towards the moving part, thereby cleaning the residue in the gate, reducing the workload of the workers, and avoiding the impact of manual cleaning operation errors on subsequent injection molding operations.

[0028] 2. After scraper part one moves to the through groove of the gate, scraper part one and scraper part two are pushed down by the elastic member. Before scraper part two is removed from the chute, scraper part two will not flip on scraper part one, so that scraper part two can scrape the residue in the through groove of the gate. After scraper part two is completely removed from the chute, the sealing part continues to move away from the moving part, so that scraper part one continues to drive scraper part two to move away from the moving part. At this time, scraper part two can flip under the obstruction of the residue in the gate, and under the action of the rebound part, scraper part two is made to stick to the residue, so as to avoid scraper part two cutting off the residue and resulting in poor cleaning effect of the residue. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the front view of the present invention.

[0030] Figure 2 This is a schematic diagram of the front cross-sectional structure of the fixed mold component of the present invention.

[0031] Figure 3 This is a three-dimensional structural diagram of the moving module of the present invention.

[0032] Figure 4 This is a three-dimensional structural diagram of the demolding mechanism of the present invention.

[0033] Figure 5 This is a schematic diagram of the front cross-sectional structure of the moving module of the present invention.

[0034] Figure 6 This is a side view schematic diagram of the scraping component of the present invention.

[0035] Figure 7 This is a cross-sectional structural diagram of the slider of the present invention.

[0036] Figure label:

[0037] 1. Frame; 2. Injection molding mechanism; 3. Heating mechanism; 4. Fixed mold part; 41. Molding cavity; 5. Drive mechanism; 6. Moving mold part; 61. Moving part; 611. Mounting cavity; 612. Guide groove; 62. Moving mold part; 63. Sealing part; 631. Slide groove; 64. Gate; 7. Demolding mechanism; 71. Drive source; 72. Sliding part; 721. Sliding part; 722. Connecting sleeve; 723. Elastic part one; 724. Locking hole; 725. Locking part; 726. Elastic part two; 73. Elastic part; 74. Scraper; 741. Scraper part one; 742. Scraper part two; 743. Springback part. Detailed Implementation

[0038] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0039] like Figures 1 to 7 As shown, the polymer composite bushing injection molding equipment of the present invention includes a frame 1, an injection molding mechanism 2, a heating mechanism 3, a fixed mold part 4, a driving mechanism 5, a moving mold part 6, and a demolding mechanism 7. The injection molding mechanism 2, the heating mechanism 3, the driving mechanism 5, and the fixed mold part 4 are all connected to the frame 1. The heating mechanism 3 can heat the injection molding material to form a melt. The injection molding mechanism 2 can transport the melt into the fixed mold part 4 and the moving mold part 6. After the melt cools, it forms a polymer composite bushing. The moving mold part 6 is connected to the driving mechanism 5 and is provided with a gate 64. The gate 64 is composed of three through grooves with connected ends. The melt can be evenly transported after passing through the gate 64. The melt is delivered into the fixed mold part 4 and the moving mold part 6. The driving mechanism 5 can drive the moving mold part 6 to close with the fixed mold part 4, so as to facilitate the subsequent injection molding of the melt. After the melt cools and forms a polymer composite bushing, the driving mechanism 5 can drive the moving mold part 6 to separate from the fixed mold part 4, so that the moving mold part 6 can remove the formed polymer composite bushing from the fixed mold part 4. The demolding mechanism 7 is connected to the moving mold part 6. The demolding mechanism 7 can remove the formed polymer composite bushing from the moving mold part 6, and at the same time clean the residue in the gate 64 area, reducing the workload of the workers and avoiding the impact of manual cleaning operation errors on subsequent injection molding operations.

[0040] When the high polymer composite bushing is injection molded, the injection material is first delivered into the injection mechanism 2, then heated into a solution by the heating mechanism 3, and delivered into the fixed mold piece 4 and the movable mold piece 6 in the closed mold state by the injection mechanism 2. The solution is uniformly delivered into the fixed mold piece 4 and the movable mold piece 6 after passing through the gate 64, and forms the high polymer composite bushing after cooling. Then the driving mechanism 5 is started to drive the movable mold piece 6 to separate from the fixed mold piece 4, so that the movable mold piece 6 takes out the molded high polymer composite bushing from the fixed mold piece 4. Finally, the demolding mechanism 7 is started to take down the molded high polymer composite bushing on the movable mold piece 6, and clean the residues on the gate 64 area.

[0041] As shown in Figures 1 to 3 The fixed mold piece 4 is provided with a molding cavity 41, the movable mold piece 6 includes a moving part 61, a movable mold part 62 and a sealing part 63. The moving part 61 is connected to the driving mechanism 5 and can be driven by the driving mechanism 5 to move towards or away from the fixed mold piece 4. The movable mold part 62 is connected to the moving part 61, and the gate 64 is arranged at one end of the movable mold part 62 away from the moving part 61. The sealing part 63 is installed on the movable mold part 62. When the moving part 61 is driven by the driving mechanism 5 to move towards the fixed mold piece 4, the movable mold part 62 can be inserted into the molding cavity 41 on the fixed mold piece 4 until the sealing part 63 contacts the fixed mold piece 4. The sealing part 63 seals the fixed mold piece 4 after the movable mold part 62 is inserted into the fixed mold piece 4, so as to prevent the solution in the molding cavity 41 from leaking, thereby ensuring the molding effect of the high polymer composite bushing.

[0042] When the high polymer composite bushing is injection molded, the moving part 61 is first driven by the driving mechanism 5 to drive the movable mold part 62 to move towards the fixed mold piece 4 until the movable mold part 62 is inserted into the molding cavity 41 on the fixed mold piece 4 and the sealing part 63 contacts the fixed mold piece 4, so as to seal the molding cavity 41 by the sealing part 63. The solution is uniformly delivered into the molding cavity 41 under the action of the gate 64, and then cooled for a period of time. Then the moving part 61 is driven by the driving mechanism 5 to drive the movable mold part 62 to move away from the fixed mold piece 4, so that the movable mold part 62 is separated from the installation cavity 611 and the molded high polymer composite bushing is separated from the installation cavity 611. Finally, the demolding mechanism 7 is started to take down the molded high polymer composite bushing from the movable mold part 62, and clean the residues on the gate 64 area.

[0043] As shown in Figures 1 to 7As shown, the demolding mechanism 7 is provided in three, and the three demolding mechanisms 7 are respectively arranged corresponding to the three through grooves on the gate 64. The demolding mechanism 7 includes a driving source 71, a sliding piece 72, an elastic piece 73 and a scraping piece 74. The driving source 71 is connected in the moving part 61, and the driving source 71 is a cylinder with the telescopic end facing the sealing part 63. Starting the driving source 71 can drive the sealing part 63 to slide on the movable die part 62. When the driving source 71 drives the sealing part 63 to move on the movable die part 62 in the direction away from the moving part 61, the high polymer composite shaft sleeve that has been cooled and formed on the movable die part 62 is pushed by the sealing part 63, so as to take off the high polymer composite shaft sleeve after forming from the movable die part 62. The moving part 61 is provided with three mounting cavities 611, and each of the three mounting cavities 611 is provided with a guide groove 612. The sliding piece 72 on each of the three demolding mechanisms 7 is respectively limitedly and slidingly connected in the three guide grooves 612. The sealing part 63 is provided with three sliding grooves 631, and the scraping piece 74 on each of the three demolding mechanisms 7 is respectively limitedly and slidingly connected in the three sliding grooves 631. The end of the sliding piece 72 on each of the three demolding mechanisms 7 away from the moving part 61 is respectively limitedly and slidingly connected with the three sliding grooves 631, so that the sliding piece 72 can only slide up and down in the sliding groove 631.

[0044] When the sealing part 63 moves on the movable die part 62 in the direction away from the moving part 61, the sliding piece 72 can be pulled to move by the sealing part 63, so as to move along the guide groove 612. The guide groove 612 is triangular. When the sealing part 63 drives the sliding piece 72 to move in the direction away from the moving part 61, the sliding piece 72 is guided by the guide groove 612 to move in the direction close to the movable die part 62. The elastic piece 73 is a compression spring, which is connected between the sliding piece 72 and the scraping piece 74, so that the scraping piece 74 is in contact with the movable die part 62 under the action of the elastic piece 73.

[0045] Due to the blocking of the movable die part 62 to the scraping piece 74, the sliding piece 72 can compress the elastic piece 73 to store power when moving in the direction close to the movable die part 62, so as to provide power for the scraping piece 74 to clean the residues in the area of the gate 64. After the scraping piece 74 moves to the through groove on the gate 64, the elastic piece 73 pushes the scraping piece 74, so that the scraping piece 74 scrapes the residues in the gate 64. When the sealing part 63 drives the scraping piece 74 to continue to move in the direction away from the moving part 61, the residues in the gate 64 are pushed away by the scraping piece 74 in the direction away from the gate 64, so as to clean the residues in the gate 64.

[0046] When the formed polymer composite shaft sleeve is demolded, the movable mold part 62 is separated from the forming cavity 41, the formed polymer composite shaft sleeve is located on the movable mold part 62, the sealing part 63 is driven to move on the movable mold part 62 in a direction away from the moving part 61 by the driving source 71, the formed polymer composite shaft sleeve is pushed by the sealing part 63, so that the formed polymer composite shaft sleeve falls off from the movable mold part 62, the sliding part 72 is driven to move when the sealing part 63 moves, and the sliding part 72 slides along the triangular guide groove 612, so that the sliding part 72 moves in a direction close to the movable mold part 62 under the guidance of the guide groove 612, the elastic part 73 is pressed down when the sliding part 72 moves in the direction close to the movable mold part 62, at this time, the scraping part 74 is blocked by the movable mold part 62, the elastic part 73 is compressed and stored when the sliding part 72 moves in the direction close to the movable mold part 62, the scraping part 74 is pushed into the through groove on the gate 64 by the compression and storage of the elastic part 73, the residual material in the through groove is scraped by the scraping part 74, and at the same time, the sealing part 63 drives the scraping part 74 to continue to move in a direction away from the moving part 61, the residual material in the gate 64 is pushed by the scraping part 74 in a direction away from the gate 64, so that the residual material in the gate 64 is cleaned.

[0047] With reference to the above Figures 1 to 7 As shown, the sliding part 72 comprises a sliding part 721, a connecting sleeve 722, an elastic part one 723, a locking part 725 and an elastic part two 726, the sliding part 721 is limitingly and slidingly connected in the guide groove 612, the connecting sleeve 722 is sleeved on the sliding part 721, one end of the connecting sleeve 722 away from the sliding part 721 is limitingly and slidingly connected in the sliding groove 631, the elastic part 73 is connected with the connecting sleeve 722, the elastic part one 723 is connected between the sliding part 721 and the connecting sleeve 722, the elastic part one 723 is a tensile spring, used for connecting the sliding part 721 and the connecting sleeve 722, two groups of locking holes 724 are arranged on the connecting sleeve 722, the number of each group of locking holes 724 is two, the locking part 725 is slidingly connected on the sliding part 721, the locking part 725 is provided as two, the elastic part two 726 is connected between the two locking parts 725, the elastic part two 726 is a compression spring, used for connecting the two locking parts 725, the two locking parts 725 are respectively inserted in the two locking holes 724 in the same group, so as to lock the sliding part 721 and the connecting sleeve 722, one end of the two locking parts 725 away from each other is arc-shaped, so that the connecting sleeve 722 or the sliding part 721 is forced, the two locking parts 725 can be separated from the two locking holes 724 in the same group, and the elastic part two 726 is compressed at the same time.

[0048] When the sealing part 63 moves on the movable die part 62 towards the direction away from the moving part 61, the connecting sleeve 722 is pulled to move, at this time, because the two locking parts 725 are inserted in one set of locking holes 724 through the elastic part two 726, the connecting sleeve 722 can drive the sliding part 721 to move in the guide groove 612, under the guidance of the guide groove 612, the sliding part 721 drives the connecting sleeve 722 to move towards the direction close to the movable die part 62, so that the connecting sleeve 722 moves towards the direction close to the movable die part 62 and compresses the elastic member 73 to store force, after the sliding part 721 moves a distance, it is blocked by the inner wall of the guide groove 612 to stop moving, at this time, when the sealing part 63 continues to move on the movable die part 62 towards the direction away from the moving part 61, it can continue to drive the connecting sleeve 722 to move and stretch the elastic part one 723, at this time, the two locking parts 725 can be pushed to be close to each other through the connecting sleeve 722, so that the two locking parts 725 are separated from the corresponding set of locking holes 724, so that the sliding part 721 can continue to move after stopping moving, until the connecting sleeve 722 moves a distance, so that the two locking parts 725 are inserted and locked with the other set of locking holes 724 under the action of the elastic part two 726, so that the scraping member 74 can keep a certain distance from the sprue 64 of the movable die part 62, so as to facilitate the subsequent reset operation of the scraping member 74.

[0049] With reference to the Figures 1 to 7 As shown, the scraping member 74 includes a scraping part one 741, a scraping part two 742 and a rebound part 743, the scraping part one 741 and the scraping part two 742 are both limited slidingly connected in the sliding groove 631, the scraping part one 741 is connected with the elastic member 73, the scraping part two 742 is rotationally connected on the scraping part one 741, the scraping part two 742 can contact with the movable die part 62, the rebound part 743 is connected between the scraping part two 742 and the scraping part one 741, the rebound part 743 is a volute spring, used to drive the scraping part one 741 to reset.

[0050] When the connecting sleeve 722 moves downward, the second scraping part 742 is blocked by the moving die part 62 and cannot move, so that the connecting sleeve 722 compresses the elastic member 73. After the first scraping part 741 moves to the through groove of the gate 64, the elastic member 73 can push the first scraping part 741 and the second scraping part 742 to move downward. Before the second scraping part 742 is separated from the sliding groove 631, the second scraping part 742 cannot overturn on the first scraping part 741, so that the second scraping part 742 can scrape the residues in the through groove of the gate 64. After the second scraping part 742 is completely separated from the sliding groove 631, the sealing part 63 continuously moves away from the moving part 61, so that the first scraping part 741 continuously drives the second scraping part 742 to move away from the moving part 61. The first scraping part 741 pushes the residues, so that the residues are separated from the gate 64. At this time, the second scraping part 742 can overturn under the block of the residues in the gate 64, and the second scraping part 742 is combined with the residues under the action of the rebound part 743, so as to avoid the residues from being broken when the scraping part 74 cleans the residues in the gate 64, thereby ensuring the cleaning effect of the residues in the gate 64.

[0051] Working principle:

[0052] When the high polymer composite shaft sleeve is injection molded, the moving part 61 is driven by the driving mechanism 5, so that the moving part 61 drives the moving die part 62 to move towards the fixed die part 4. The moving die part 62 is inserted into the molding cavity 41 on the fixed die part 4, and the sealing part 63 is in contact with the fixed die part 4, so that the sealing part 63 seals the molding cavity 41. The solvent enters the molding cavity 41 and is uniformly transported into the molding cavity 41 under the action of the gate 64. After a period of cooling, the moving part 61 is driven by the driving mechanism 5, so that the moving part 61 drives the moving die part 62 to move away from the fixed die part 4, so that the moving die part 62 is separated from the installation cavity 611, and the molded high polymer composite shaft sleeve is separated from the installation cavity 611.

[0053] The driving source 71 drives the sealing part 63 to move on the moving die part 62 away from the moving part 61, and the sealing part 63 drives the molded high polymer composite shaft sleeve to fall off the moving die part 62.

[0054] The sealing part 63 pulls the connecting sleeve 722 to move. At this time, the two locking parts 725 are inserted into one set of locking holes 724 through the elastic part 726, so that the connecting sleeve 722 can drive the sliding part 721 to move in the guide groove 612 when the connecting sleeve 722 moves. Under the guidance of the guide groove 612, the sliding part 721 drives the connecting sleeve 722 to move towards the moving die part 62, so that the connecting sleeve 722 moves towards the moving die part 62.

[0055] When the connecting sleeve 722 moves downward, the second scraping part 742 is blocked by the moving die part 62 and cannot move, so that the connecting sleeve 722 compresses the elastic part 73 to accumulate force. After the first scraping part 741 moves to the through slot of the gate 64, the second scraping part 742 is pushed downward by the elastic part 73, and the second scraping part 742 cannot overturn on the first scraping part 741 before it is separated from the sliding groove 631, so that the second scraping part 742 can clean the residual material in the through slot of the gate 64. After the second scraping part 742 is completely separated from the sliding groove 631, the sealing part 63 continuously moves away from the moving part 61 to continuously drive the first scraping part 741 and the second scraping part 742 to move away from the moving part 61. At this time, the second scraping part 742 can overturn under the resistance of the residual material in the gate 64, and the second scraping part 742 is combined with the residual material under the action of the rebound part 743. The residual material is pushed by the first scraping part 741 to separate from the gate 64.

[0056] After the sliding part 721 moves a distance and is blocked by the inner wall of the guide groove 612, the sealing part 63 continues to move away from the moving part 61, continuously drives the connecting sleeve 722 to move, and stretches the elastic part 1 723. At this time, the two locking parts 725 are pushed by the connecting sleeve 722 to approach each other to separate from a corresponding set of locking holes 724. After the sliding part 721 stops moving, the connecting sleeve 722 continues to move until the two locking parts 725 are inserted and locked with another set of locking holes 724 under the action of the elastic part 2 726, so that the scraping part 74 is kept a certain distance from the gate 64 of the moving die part 62.

[0057] After cleaning, the driving source 71 drives the sealing part 63 to move towards the moving part 61. At this time, the sliding part 72 is driven by the moving part 61 to move towards the moving part 61, and under the guidance of the guide groove 612, the sliding part 72 moves upwards. When the sliding part 72 moves upwards, the scraping part 74 is pulled upwards by the elastic part 73 to reset. After the sliding part 721 moves in the guide groove 612 and resets, it stops moving under the block of the guide groove 612. At this time, the sealing part 63 drives the connecting sleeve 722 to move towards the moving part 61 to drive the two locking parts 725 to approach each other and press the elastic part 2 726, so that the two locking parts 725 are separated from the corresponding locking holes 724. Until the sealing part 63 drives the connecting sleeve 722 to reset, the two locking parts 725 are aligned with the initial locking holes 724 and are inserted again under the action of the elastic part 2 726, so as to complete the resetting of the sliding part 72.

[0058] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and that variations, modifications, substitutions and changes can be made by those skilled in the art without departing from the scope of the present application.

Claims

1. A high polymer composite bushing injection molding equipment, comprising a frame, an injection mechanism, a heating mechanism, a driving mechanism and a movable die part, the movable die part comprising a moving part, a movable die part connected to the moving part, a sealing part installed on the movable die part, and a gate provided at an end of the movable die part, characterized in that, The demolding mechanism comprises a driving source and a scraping member, the driving source is connected to the moving part, the sealing part is connected to the driving source, the driving source can drive the sealing part to move on the movable die part to separate the formed polymer composite shaft sleeve from the movable die part, the scraping member is installed on the sealing part, and when the sealing part drives the scraping member to move to the gate, the scraping member can extend into the gate; The scraping member comprises a scraping part one, a scraping part two and a rebound part, the scraping part one and the scraping part two are both limitingly and slidingly connected to the sealing part, the scraping part two is rotationally connected to the scraping part one, and the rebound part is connected between the scraping part one and the scraping part two; The sealing part is provided with a sliding groove, the scraping part two and the scraping part one are both limitingly and slidingly connected in the sliding groove, and the scraping part two is in contact with the movable die part. The demolding mechanism further comprises a sliding member and an elastic member, the sliding member is limitingly and slidingly connected to the moving part and the sliding groove respectively, the elastic member is connected between the sliding member and the scraping part one, and when the sealing part moves in a direction away from the moving part, the sealing part can drive the sliding member to move in a direction close to the movable die part to compress the elastic member.

2. The polymer composite bushing injection molding apparatus of claim 1, wherein, The moving part is provided with a guide groove, the sliding member is limitingly and slidingly connected in the guide groove, and the guide groove is triangular.

3. The polymer composite bushing injection molding apparatus of claim 2, wherein, The sliding member comprises a sliding part, a connecting sleeve and an elastic part one, the sliding part is limitingly and slidingly connected in the guide groove, the connecting sleeve is sleeved on the sliding part, the connecting sleeve is limitingly and slidingly connected in the sliding groove, and the elastic part one is connected between the sliding part and the connecting sleeve.

4. The polymer composite bushing injection molding apparatus of claim 3, wherein, Two groups of locking holes are arranged on the connecting sleeve, and the number of locking holes in each group is two.

5. The polymer composite bushing injection molding apparatus of claim 4, wherein, The sliding member further comprises a locking part and an elastic part two, the locking part is slidingly connected to the sliding part, the locking part is provided in two, the elastic part two is connected between the two locking parts, and the two locking parts can be inserted into the two locking holes in the same group under the action of the elastic part two.

6. The polymer composite bushing injection molding apparatus of claim 5, wherein, The ends of the two locking parts away from each other are arc-shaped.

7. The polymer composite bushing injection molding apparatus of claim 1, wherein, The gate is composed of three through grooves communicated with each other.

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