Injection mold for a plug

Abstract

The application belongs to the technical field of injection mold, and particularly relates to an injection mold for plug, which comprises a placing rack, a lower mold arranged in the placing rack, and an upper mold arranged above the lower mold. By arranging the lifting frame, the upper mold can be moved upward after the injection is completed by starting the lifting frame. First, the upper mold is separated from the baffle. After the upper mold is lifted for a period of time, the driving gear will also drive the second connecting arm to rotate through the connecting crawler. At this time, the auxiliary gear on the surface of the second connecting arm will drive the auxiliary rack to move upward, thereby driving the baffle to move upward and making the baffle separate from the lower mold. Finally, the lower mold, the baffle and the upper mold are automatically separated during the lifting of the upper mold, which not only saves time, but also adjusts the distance between the baffle and the lower mold through the splicing rack below the auxiliary rack, so that operators with different heights can operate conveniently.

Description

Technical Field

[0001] This invention belongs to the field of injection mold technology, specifically an injection mold for a plug. Background Technology

[0002] Injection molds are manufacturing tools primarily used to manufacture plastic injection molded products. In the injection molding process of plugs, molten plastic is injected into the mold, which then cools and solidifies to form the desired plastic plug product. In summary, injection molds play a crucial role in the injection molding process and are an indispensable tool in modern manufacturing.

[0003] A patent application with publication number CN215151375U discloses a mold without parting lines, including an upper mold plate, a middle mold plate, and a lower mold plate. The upper mold plate has a glue inlet, an upper vacuum channel, and a lower vacuum channel on its surface. It also includes a first sealing ring located on the first side of the middle mold plate. This mold can place the entire product onto the middle mold plate without overflowing. It uses a strong demolding method to effectively achieve zero burrs and no parting lines. The glue inlet adopts a needle valve type cold runner. During the mold closing process, the middle mold plate and the lower mold plate are vacuumed simultaneously to achieve the best effect.

[0004] The above solution still has some problems in practical application. After the injection molding is completed, when taking out the molded part from inside the mold, the upper mold plate and the middle mold plate must first be separated before the middle mold and the lower mold can be separated and the injection molded part can be taken out. Since the lower surface of the upper mold plate needs to be kept relatively clean after separating the upper mold plate and the middle mold plate, it cannot be placed randomly. At this time, the upper mold plate needs to be flipped over and placed in a stable position. This process will consume a lot of time. In the next injection molding process, when the upper mold plate is placed on top of the middle mold plate, the positioning work of the upper mold plate and the middle mold plate plate is also required. This process will increase the working cycle and affect the injection molding of the product.

[0005] Therefore, the present invention provides an injection mold for a plug. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: An injection mold for a plug, comprising a placement frame, a lower mold disposed inside the placement frame, and an upper mold placed above the lower mold; a baffle is placed in the gap between the lower mold and the upper mold; an adjustment structure is provided inside the placement frame; the lower mold includes: positioning grooves, two of which are disposed on the upper surface of the lower mold; a positioning plate, disposed at one end near the positioning grooves; the baffle includes: an injection groove, disposed inside the baffle; a wire, which slides inside the injection groove and is placed on the inner wall of the positioning groove; and a positioning slot, disposed at the lower end of the baffle and engaging with the positioning plate. The system includes: an injection tube, which is located inside the baffle and has one end connected to the injection groove; an extrusion tube, which is located inside the baffle and has one end connected to the injection groove and the other end connected to the injection tube; and an adjustment structure including a lifting rack located on one side of the upper mold, a drive gear rotatably connected to the inner wall of the placement frame, a connecting track fitted on the surface of the drive gear, a second connecting arm rotatably connected to the inner wall of the placement frame, a connecting track fitted on the arc surface of the second connecting arm, an auxiliary gear on the surface of the second connecting arm, an auxiliary rack slidably connected to the inner wall of the placement frame, the auxiliary rack contacting the bottom of the baffle and meshing with the auxiliary gear.

[0008] Preferably, the adjustment structure further includes: a connecting rod, which is disposed at the upper end of the upper mold; a lifting frame, which is disposed at the upper end of the connecting rod and slides inside the placement frame; a first connecting arm, one end of which is connected to the upper mold and the other end of which is connected to a lifting rack; a fixing rod, which is disposed on the inner wall of the placement frame; and a lifting ring, which slides on the surface of the fixing rod and is connected to an auxiliary rack.

[0009] Preferably, the lower end of the auxiliary rack is rotatably connected to a splicing rack, and the splicing rack is in contact with the inner wall of the placement rack in the initial state. One end of the splicing rack is provided with a coil spring, and the other end of the coil spring is connected to the auxiliary rack.

[0010] Preferably, the inner wall of the placement rack is provided with an auxiliary sliding plate at one end near the splicing rack, and the auxiliary sliding plate abuts against the splicing rack.

[0011] Preferably, the upper end of the auxiliary rack is provided with a placement frame, the upper end of the placement frame is provided with a fixing clamp, and the upper end of the placement frame near the fixing clamp is provided with an adjusting clamp.

[0012] Preferably, the placement frame is internally rotatably connected to a lead screw, and the lead screw is threadedly connected to the adjusting clamp.

[0013] Preferably, the inner wall of the placement frame is provided with a fixed frame, the upper end of the fixed frame is provided with a first screw, and the first screw slides inside the placement frame. The placement frame is rotatably connected with a meshing gear, and the meshing gear meshes with the first screw. An auxiliary chain is sleeved on the surface of the meshing gear, and the other end of the auxiliary chain is sleeved on the surface of the lead screw.

[0014] Preferably, the surface of the placement frame is provided with a plurality of anti-wear pads, and the anti-wear pads are in contact with the lower surface of the baffle.

[0015] Preferably, the injection-molded tube has an auxiliary block inside, and the auxiliary block is annular. The end of the auxiliary block near the injection groove is provided with a baffle, and the end of the injection-molded tube near the auxiliary block is provided with an abutment block.

[0016] Preferably, the baffle is rotatably connected to a second screw, which is threadedly connected to the abutment block. The inner wall of the injection molding tube is provided with a sliding rod, and the auxiliary block slides on the surface of the sliding rod. The surface of the sliding rod is provided with a pressing spring, one end of which is connected to the injection molding tube, and the other end of which is connected to the auxiliary block.

[0017] The beneficial effects of this invention are as follows: 1. The injection mold for a plug according to the present invention, by setting a lifting frame, after injection molding is completed, the lifting frame can be activated to move the upper mold upward, first separating it from the baffle. After the upper mold rises for a period of time, the drive gear will also drive the second connecting arm to rotate through the connecting track. At this time, the auxiliary gear located on the surface of the second connecting arm will drive the auxiliary rack to move upward, thereby driving the baffle to move upward and causing the baffle to detach from the lower mold. Finally, during the process of the upper mold rising, the lower mold, the baffle and the upper mold can be automatically separated. This not only saves time, but the splicing rack located below the auxiliary rack can also adjust the distance between the baffle and the lower mold, making the application range wider.

[0018] 2. The injection mold for a plug according to the present invention, by setting a placement frame, during the injection molding process, the first screw will pass through the inside of the placement frame. During the passage, the adjusting clamp will slide on the surface of the placement frame. Finally, the adjusting clamp will abut against the baffle, thereby fixing the baffle. The baffle can be more stable during the rising process. When it is necessary to separate the baffle from the lower mold, the screw will also reverse, and the adjusting clamp will move away from the baffle, finally releasing the fixation of the baffle, so that the baffle can be better removed.

[0019] 3. The injection mold for a plug according to the present invention, by setting an abutment block and an auxiliary block, when the injection molding liquid fills the entire injection tube, the second screw is started to rotate. The second screw will drive the abutment block to move towards the injection groove, and finally abut against the stop strip on one side of the auxiliary block. The abutment block will also block the annular notch of the auxiliary block. At this time, the injection molding liquid near the injection groove end will not be able to flow to the right. Therefore, the injection molding liquid will be passed into the interior of the extrusion tube and into the interior of the injection groove, and the injection molding liquid will not flow back. This avoids the problem of uneven distribution of injection molding liquid inside the injection groove, which would affect the structural integrity of the product. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a perspective view of Embodiment 1 of the present invention; Figure 2 This is the front view of the mold of the present invention; Figure 3 This is a front view of the baffle of the present invention; Figure 4 This is a connection diagram of the mold and the adjustment structure in this invention; Figure 5 This is a connection diagram of the placement rack and adjustment structure of the present invention; Figure 6 This is a diagram showing the fit between the auxiliary rack and the second connecting arm of the present invention; Figure 7 This is a side view of the frame in this invention; Figure 8 This is the main view of the frame in this invention; Figure 9 This is a connection diagram of the adjusting clamp and the lead screw of the present invention; Figure 10 This is a connection diagram of the injection-molded tube and the abutment block of the present invention; Figure 11 This is a connection diagram of the abutment block and the auxiliary block of the present invention; In the diagram: 1. Lower mold; 11. Positioning groove; 12. Positioning plate; 2. Upper mold; 3. Baffle; 31. Injection tank; 32. Wire; 33. Positioning groove; 34. Injection tube; 35. Extrusion tube; 4. Placement frame; 5. Adjustment structure; 501. Lifting frame; 502. Connecting rod; 503. First connecting arm; 504. Lifting rack; 505. Drive gear; 506. Connecting track; 507. Fixing rod; 508. Lifting ring; 509. Fixing clamp; 5 10. Second connecting arm; 511. Placement frame; 512. Auxiliary rack; 513. Auxiliary gear; 514. Splicing rack; 515. Fixing frame; 516. Auxiliary slide plate; 517. Coil spring; 518. Adjusting clamp; 519. Auxiliary chain; 520. First screw; 521. Anti-wear pad; 522. Lead screw; 523. Meshing gear; 524. Second screw; 525. Abutment block; 526. Auxiliary block; 527. Sliding rod; 528. Pressing spring. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments. Example

[0023] like Figures 1 to 6As shown, an injection mold for a plug according to an embodiment of the present invention includes a placement frame 4, a lower mold 1 disposed inside the placement frame 4, and an upper mold 2 placed above the lower mold 1; a baffle 3 is placed in the gap between the lower mold 1 and the upper mold 2, and an adjustment structure 5 is provided inside the placement frame 4; the lower mold 1 includes: positioning grooves 11, two positioning grooves 11 are disposed on the upper surface of the lower mold 1; a positioning plate 12, the positioning plate 12 is disposed near one end of the positioning grooves 11; the baffle 3 includes: an injection groove 31, the injection groove 31 is disposed inside the baffle 3; a wire 32, the wire 32 slides inside the injection groove 31 and is placed on the inner wall of the positioning groove 11; a positioning groove 33, the positioning groove 33 is disposed at the lower end of the baffle 3 and is engaged with the positioning plate 12; and an injection tube 34, the injection tube 34 is disposed inside the baffle 3. One end of the injection tube 34 is connected to the injection tank 31; the extrusion tube 35 is opened inside the baffle 3, and one end of the extrusion tube 35 is connected to the injection tank 31, and the other end of the extrusion tube 35 is connected to the injection tube 34; the adjustment structure 5 includes a lifting rack 504, which is located on one side of the upper mold 2; the inner wall of the placement frame 4 is rotatably connected to a drive gear 505, and the surface of the drive gear 505 is fitted with a connecting track 506; the inner wall of the placement frame 4 is rotatably connected to a second connecting arm 510, and the arc surface of the second connecting arm 510 is fitted with a connecting track 506; the surface of the second connecting arm 510 is provided with an auxiliary gear 513; the inner wall of the placement frame 4 is slidably connected to an auxiliary rack 512, and the auxiliary rack 512 contacts the bottom of the baffle 3, and the auxiliary rack 512 meshes with the auxiliary gear 513.

[0024] Specifically, the connector plug is produced by injection molding. Molten plug material is injected into a mold, and then cooled and solidified to form a solid product. To eliminate parting lines in the injection-molded product, this solution uses a multi-insert assembly mold. This mold eliminates the need for two separate molds for injection molding, as excess molten plastic would leak out at the mold joint, creating parting lines. The mold in this solution consists of a lower mold 1, a baffle 3, and an upper mold 2. During injection molding, the wire 32 is first inserted into the baffle 3, and then the baffle 3 is placed on the surface of the lower mold 1, with the positioning groove 33 aligning with the positioning... The positioning plates 12 are engaged. At this point, the injection molding liquid is injected into the injection tank 31 through the injection tube 34. This injection tank 31 serves as the mold groove for the connector plug. Then, the upper mold 2 and lower mold 1 are connected, and both molds are pressed towards the baffle 3 to seal the interior of the injection tank 31. The baffle 3 is then cooled. When the injection molding liquid in the injection tank 31 has solidified, the baffle 3 can be separated from the upper and lower molds. The product will then fit over the arc surface of the wire 32. Simply pull the wire 32 out of the baffle 3 to remove the product and wire 32 together. Since the injection tank 31 is a single, integral groove, the molded connector plug has no parting line. This improves the appearance quality, but removing the molded connector plug from the mold requires first separating the upper mold 2 from the baffle 3 before the baffle 3 can be removed from the surface of the lower mold 1. Only then can the connector plug be exposed and removed. If this step could be completed in one step, the removal time of the baffle 3 and the connector plug could be shortened. Therefore, an adjustment structure 5 was designed. After the connector plug is injection molded, the upper mold 2 is raised. The lifting rack 504 located behind the upper mold 2 will mesh with the drive gear 505 after the upper mold 2 has risen for a period of time, driving the drive gear 505 to rotate. The drive gear 505 will also drive the lower mold 1 through the connecting track 506. When the second connecting arm 510 rotates, the auxiliary gear 513 on the surface of the second connecting arm 510 will drive the auxiliary rack 512 to move upward, which will eventually drive the baffle 3 to move upward and cause the baffle 3 to separate from the lower mold 1. Since the upper mold 2 has already moved upward a certain distance before the baffle 3 moves upward, the lower mold 1, the baffle 3 and the upper mold 2 are now separated. This not only makes it convenient to remove the connector plug in the baffle 3, but also makes it convenient to clean the inside of the injection mold 31. When it is necessary to reassemble the lower mold 1, the baffle 3 and the upper mold 2, simply insert a brand new wire 32 into the injection mold 31 and then press the lower mold 1 down. This is very convenient.

[0025] like Figures 1 to 5As shown, the adjustment structure 5 further includes: a connecting rod 502, which is located at the upper end of the upper mold 2; a lifting frame 501, which is located at the upper end of the connecting rod 502 and slides inside the placement frame 4; a first connecting arm 503, one end of which is connected to the upper mold 2 and the other end of which is connected to the lifting rack 504; a fixing rod 507, which is located on the inner wall of the placement frame 4; and a lifting ring 508, which slides on the surface of the fixing rod 507 and is connected to the auxiliary rack 512.

[0026] Specifically, after the connector plug is injection molded, the lifting frame 501 is activated. The lifting frame 501 will move upward, and during the movement, it will drive the upper mold 2 to move together through the connecting rod 502. Finally, when the auxiliary rack 512 drives the baffle 3 to move upward, the lifting ring 508 on one side of the auxiliary rack 512 will move downward along the surface of the fixed rod 507, thereby limiting the rise and fall of the auxiliary rack 512.

[0027] like Figures 5 to 6 As shown, the lower end of the auxiliary rack 512 is rotatably connected to the splicing rack 514, and the splicing rack 514 is in contact with the inner wall of the placement frame 4 in the initial state. One end of the splicing rack 514 is provided with a coil spring 517, and the other end of the coil spring 517 is connected to the auxiliary rack 512.

[0028] Specifically, to increase the lifting distance of the baffle 3, a splicing rack 514 is provided at the lower end of the auxiliary rack 512. Since there is no space at the lower end of the placement rack 4, a coil spring 517 is provided at one end of the splicing rack 514, so that the splicing rack 514 contacts the inner wall of the placement rack 4 in the initial state. The other end of the coil spring 517 is connected to the auxiliary rack 512. After the auxiliary rack 512 is raised a certain distance, the coil spring 517 will release its elasticity, causing the splicing rack 514 to rotate until it is in the same vertical line as the auxiliary rack 512. At this time, the splicing rack 514 will mesh with the auxiliary gear 513 and cause the auxiliary rack 512 to move upward, so that the baffle 3 can be raised a greater distance, thus ensuring that the removal of the wire 32 and the connector plug is not affected by the lower mold 1 and the upper mold 2.

[0029] like Figure 5 As shown, an auxiliary sliding plate 516 is provided on the inner wall of the placement rack 4 near the splicing rack 514, and the auxiliary sliding plate 516 abuts against the splicing rack 514.

[0030] Specifically, by setting an auxiliary slide plate 516 on the inner wall of the placement rack 4, and the surface of the auxiliary slide plate 516 is arc-shaped, when injection molding is required again, the auxiliary rack 512 will move downward, and the splicing rack 514 will come into contact with the auxiliary slide plate 516. Since the surface of the auxiliary slide plate 516 is arc-shaped, and the splicing rack 514 is connected to the auxiliary rack 512 by a coil spring 517, the splicing rack 514 will slide along the surface of the auxiliary slide plate 516 and rotate to achieve reset. Thus, during the downward movement of the auxiliary rack 512, the splicing rack 514 can automatically reset for the next injection molding operation.

[0031] like Figures 1 to 8 As shown, the upper end of the auxiliary rack 512 is provided with a placement frame 511, the upper end of the placement frame 511 is provided with a fixing clamp 509, and the upper end of the placement frame 511 near the fixing clamp 509 is provided with an adjusting clamp 518.

[0032] Specifically, by setting a placement frame 511 at the upper end of the auxiliary rack 512 and placing the baffle 3 inside the placement frame 511, which is fixed by the fixing clamp 509 and the adjusting clamp 518, when the baffle 3 separates from the lower mold 1, the baffle 3 can rise and fall more stably because it is restrained by the fixing clamp 509 and the adjusting clamp 518 on both sides. Thus, when the baffle 3 is removed from the lower mold 1, the connector plug located in the baffle 3 can also be prevented from shaking and causing damage.

[0033] like Figures 7 to 9 As shown, a lead screw 522 is rotatably connected inside the placement frame 511, and the lead screw 522 is threadedly connected to the adjusting clamp 518.

[0034] Specifically, during injection molding, the baffle 3 is located not only between the lower mold 1 and the upper mold 2, but also inside the placement frame 511. At this time, the lead screw 522 is started to rotate. Since the lead screw 522 is threadedly connected to the adjusting clamp 518, and the adjusting clamp 518 is slidably connected to the placement frame 511, the adjusting clamp 518 will slide on the surface of the placement frame 511 during the rotation of the lead screw 522. Finally, the adjusting clamp 518 will abut against the baffle 3, thereby fixing the baffle 3. When it is necessary to separate the baffle 3 from the lower mold 1, the lead screw 522 is reversed, and the adjusting clamp 518 will move away from the baffle 3, finally releasing the fixation of the baffle 3, so that the baffle 3 can be better removed.

[0035] like Figures 7 to 9As shown, the inner wall of the placement frame 4 is provided with a fixed frame 515, the upper end of the fixed frame 515 is provided with a first screw 520, and the first screw 520 slides inside the placement frame 511. The placement frame 511 is rotatably connected with a meshing gear 523, and the meshing gear 523 meshes with the first screw 520. An auxiliary chain 519 is sleeved on the surface of the meshing gear 523, and the other end of the auxiliary chain 519 is sleeved on the surface of the lead screw 522.

[0036] Specifically, during the injection molding process, the baffle 3 is engaged with the lower mold 1. During this engagement, the first screw 520 passes through the inside of the placement frame 511. During this process, the first screw 520 engages with the meshing gear 523 and drives the meshing gear 523 to rotate. As the meshing gear 523 rotates, it drives the lead screw 522 to rotate via the auxiliary chain 519. During the rotation of the lead screw 522, the adjusting clamp 518 fixes the baffle 3. When the baffle 3 is separated from the lower mold 1, the adjusting clamp 518 will automatically release the baffle 3 from its fixation.

[0037] like Figure 8 As shown, the surface of the frame 511 is provided with several anti-wear pads 521, and the anti-wear pads 521 are in contact with the lower surface of the baffle 3.

[0038] Specifically, by setting anti-wear pads 521 on the surface of the placement frame 511, the baffle 3 can be prevented from directly contacting the placement frame 511 during its upward and downward movements, thus avoiding wear problems. Example

[0039] like Figures 10 to 11 As shown in the first embodiment, another embodiment of the present invention is as follows: the injection tube 34 is provided with an auxiliary block 526, and the auxiliary block 526 is annular. The auxiliary block 526 is provided with a baffle at one end near the injection groove 31, and the injection tube 34 is provided with an abutment block 525 at one end near the auxiliary block 526.

[0040] Specifically, before injection molding, injection fluid needs to be introduced into the injection tube 34. By setting up auxiliary block 526 and abutment block 525, the injection fluid will fill the entire injection tube 34 in the initial state. At this time, the abutment block 525 is activated and will move towards the injection groove 31, eventually abutting against the baffle on one side of the auxiliary block 526. The abutment block 525 will also block the annular notch of the auxiliary block 526. At this time, the auxiliary block 526 and abutment block 525 will isolate the injection fluid inside the entire injection tube 34. The injection fluid near the injection groove 31 will not be able to flow to the right. Since the abutment block 525 is still moving towards the injection groove 31, the injection fluid will be introduced into the extrusion tube 35 and into the injection groove 31, and the injection fluid will not flow back.

[0041] like Figures 10 to 11 As shown, a second screw 524 is rotatably connected inside the baffle 3, and the second screw 524 is threadedly connected to the abutment block 525. The inner wall of the injection tube 34 is provided with a sliding rod 527, and the auxiliary block 526 slides on the surface of the sliding rod 527. A pressing spring 528 is provided on the surface of the sliding rod 527, and one end of the pressing spring 528 is connected to the injection tube 34, and the other end of the pressing spring 528 is connected to the auxiliary block 526.

[0042] Specifically, when the injection molding liquid fills the entire injection tube 34, the second screw 524 is started to rotate. Since the second screw 524 is threadedly connected to the abutment block 525 and the abutment block 525 slides inside the injection tube 34, the abutment block 525 will move towards the auxiliary block 526 and eventually abut against the auxiliary block 526. When the injection molding liquid is squeezed into the injection groove 31, the second screw 524 is started again to reverse the direction. The second screw 524 will drive the abutment block 525 to move away from the injection groove 31. At this time, the pressing spring 528 will also release its elasticity, which will eventually push the auxiliary block 526 to move away from the injection groove 31, so that the auxiliary block 526 can automatically reset.

[0043] Working principle: In this injection mold, during injection molding, the wire 32 is first inserted into the baffle 3, and then the baffle 3 is placed on the surface of the lower mold 1, with the positioning groove 33 engaging with the positioning plate 12. At this time, the injection molding liquid is injected into the injection groove 31 through the injection tube 34. The injection groove 31 is the mold groove for the connector plug. When the injection molding liquid fills the entire injection tube 34, the second screw 524 is started to rotate. Since the second screw 524 is threadedly connected to the abutment block 525, and the abutment block 525 slides inside the injection tube 34, the abutment block 525... 25 will move towards the auxiliary block 526 and eventually abut against the auxiliary block 526, and finally against the stop bar on one side of the auxiliary block 526. The abutting block 525 will also block the annular notch of the auxiliary block 526. At this time, the auxiliary block 526 and the abutting block 525 will isolate the injection liquid inside the entire injection tube 34. The injection liquid near the injection tank 31 will not be able to flow to the right. Since the abutting block 525 is still moving towards the injection tank 31, the injection liquid will be passed into the interior of the extrusion tube 35 and into the injection tank. Inside mold 31, the injection liquid will not flow back. Then, the upper mold 2 is connected to the lower mold 1, and the baffle 3 is pressed to form the connector plug. At this time, the formed connector plug has no parting line. After the connector plug is injection molded, the lifting frame 501 is activated. The lifting frame 501 will move upward, and during the movement, it will drive the upper mold 2 to move together through the connecting rod 502. The lifting rack 504 located behind the upper mold 2 will mesh with the drive gear 505 after the upper mold 2 has risen for a period of time, and drive the drive gear 505 to move. When the drive gear 505 rotates, it will also drive the second connecting arm 510 to rotate through the connecting track 506. At this time, the auxiliary gear 513 located on the surface of the second connecting arm 510 will drive the auxiliary rack 512 to move upward, and finally drive the baffle 3 to move upward, so that the baffle 3 is separated from the lower mold 1. Since the upper mold 2 has already moved upward a certain distance before the baffle 3 moves upward, the lower mold 1, the baffle 3 and the upper mold 2 are separated at this time. This not only makes it convenient to remove the connector plug in the baffle 3, but also makes it convenient to clean the inside of the injection molding tank 31.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold for a plug, characterized in that: The device includes a placement rack (4), inside which a lower mold (1) is provided, and above the lower mold (1) an upper mold (2) is placed; a baffle (3) is placed in the gap between the lower mold (1) and the upper mold (2), and an adjustment structure (5) is provided inside the placement rack (4). The lower mold (1) includes: Positioning grooves (11), two of the positioning grooves (11) are provided on the upper surface of the lower mold (1); Positioning plate (12), the positioning plate (12) is located at one end near the positioning groove (11); The baffle (3) includes: Injection groove (31), the injection groove (31) is located inside the baffle (3); The wire (32) slides inside the injection groove (31) and is placed on the inner wall of the positioning groove (11); The positioning groove (33) is located at the lower end of the baffle (3) and is engaged with the positioning plate (12); Injection tube (34), the injection tube (34) is located inside the baffle (3), and one end of the injection tube (34) is connected to the injection groove (31); The extrusion tube (35) is located inside the baffle (3), and one end of the extrusion tube (35) is connected to the injection tank (31), and the other end of the extrusion tube (35) is connected to the injection tube (34). The adjustment structure (5) includes a lifting rack (504), which is located on one side of the upper mold (2). The inner wall of the placement frame (4) is rotatably connected to a drive gear (505), and the surface of the drive gear (505) is fitted with a connecting track (506). The inner wall of the placement frame (4) is rotatably connected to a second connecting arm (510), and the arc surface of the second connecting arm (510) is fitted with a connecting track (506). The surface of the second connecting arm (510) is provided with an auxiliary gear (513). The inner wall of the placement frame (4) is slidably connected to an auxiliary rack (512), and the auxiliary rack (512) contacts the bottom of the baffle (3). The auxiliary rack (512) meshes with the auxiliary gear (513). The adjustment structure (5) also includes: Connecting rod (502), the connecting rod (502) is located at the upper end of the upper mold (2); A lifting frame (501) is provided at the upper end of the connecting rod (502), and the lifting frame (501) slides inside the placement frame (4); The first connecting arm (503) has one end connected to the upper mold (2) and the other end connected to the lifting rack (504); A fixing rod (507) is provided on the inner wall of the placement frame (4); A lifting ring (508) slides on the surface of a fixed rod (507) and is connected to an auxiliary rack (512); The upper end of the auxiliary rack (512) is provided with a placement frame (511), the upper end of the placement frame (511) is provided with a fixing clamp (509), and the upper end of the placement frame (511) near the fixing clamp (509) is provided with an adjusting clamp (518).

2. The injection mold for a plug according to claim 1, characterized in that: The lower end of the auxiliary rack (512) is rotatably connected to the splicing rack (514), and the splicing rack (514) is in contact with the inner wall of the placement rack (4) in the initial state. One end of the splicing rack (514) is provided with a coil spring (517), and the other end of the coil spring (517) is connected to the auxiliary rack (512).

3. The injection mold for a plug according to claim 2, characterized in that: The inner wall of the placement rack (4) is provided with an auxiliary sliding plate (516) near the splicing rack (514), and the auxiliary sliding plate (516) abuts against the splicing rack (514).

4. The injection mold for a plug according to claim 3, characterized in that: The placement frame (511) is internally rotatably connected to a lead screw (522), and the lead screw (522) is threadedly connected to the adjusting clamp (518).

5. The injection mold for a plug according to claim 4, characterized in that: The inner wall of the placement frame (4) is provided with a fixed frame (515). The upper end of the fixed frame (515) is provided with a first screw (520), and the first screw (520) slides inside the placement frame (511). The placement frame (511) is rotatably connected with a meshing gear (523), and the meshing gear (523) meshes with the first screw (520). An auxiliary chain (519) is sleeved on the surface of the meshing gear (523), and the other end of the auxiliary chain (519) is sleeved on the surface of the lead screw (522).

6. The injection mold for a plug according to claim 5, characterized in that: The surface of the placement frame (511) is provided with a plurality of anti-wear pads (521), and the anti-wear pads (521) are in contact with the lower surface of the baffle (3).

7. The injection mold for a plug according to claim 6, characterized in that: The injection tube (34) is provided with an auxiliary block (526) inside, and the auxiliary block (526) is annular. The auxiliary block (526) is provided with a baffle at one end near the injection groove (31), and the injection tube (34) is provided with an abutment block (525) at one end near the auxiliary block (526).

8. The injection mold for a plug according to claim 7, characterized in that: The baffle (3) is rotatably connected to a second screw (524), and the second screw (524) is threadedly connected to the abutment block (525). The inner wall of the injection tube (34) is provided with a sliding rod (527), and the auxiliary block (526) slides on the surface of the sliding rod (527). The surface of the sliding rod (527) is provided with a pressing spring (528), and one end of the pressing spring (528) is connected to the injection tube (34), and the other end of the pressing spring (528) is connected to the auxiliary block (526).

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