An injection mold facilitating quick die head replacement

Abstract

The present invention relates to the field of injection molds, and discloses an injection mold facilitating quick replacement of a die head, including a mold component. The mold component includes an upper template. One side of the outer wall of the upper template is provided with a forming template. A gate channel is formed on the outer wall of the forming template. A lower mold part is arranged on one side of the upper template. One side of the inner wall of the upper template is provided with a mold clamping mechanism for clamping the die head parts. One side of the mold clamping mechanism is provided with a die removing mechanism for removing and replacing the die head parts. A cleaning mechanism for cleaning is arranged on the inner wall of the upper template. The injection mold facilitating quick replacement of a die head provided by the present invention has a mold clamping mechanism and a die removing mechanism. By using the cooperation of the mold clamping mechanism and the die removing mechanism, the originally complex operation of replacing the die head parts can be made very easy. While increasing the service life of the equipment, it also greatly saves the time for the user to maintain the mold and improves the production efficiency of the injection mold.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molds, and specifically to an injection mold that facilitates the rapid replacement of a die head. Background Art

[0002] In the patent application with the publication number CN210389952U, it includes a fixing device, an injection device, and an injection head. It is characterized in that an injection port is opened at one end of the injection head, a first connecting block and a second connecting block are arranged on the outer surface of the injection head, a second connecting groove matching the second connecting block is opened on one side of the injection device close to the injection head, a fixing groove is opened at the end of the second connecting groove far from the injection head, a groove is opened on the outer surface of the injection device close to the second connecting groove, the cavity of the fixing device is convex, and a matching first connecting groove is opened at a position parallel to the inner surface and the first connecting block.

[0003] Advantages: The injection mold that facilitates the disassembly and replacement of the injection head has a reasonable structure, convenient operation, is easy to replace, and improves work efficiency through the mutual connection between the fixing device, the injection device, and the injection head.

[0004] An injection molding machine is the current mainstream equipment for forming plastic products. The injection mold is installed inside the injection molding machine. The injection molding machine is divided into an upper mold and a lower mold part. Among them, the die head is installed inside the upper mold. The die head is usually located in the gate system part of the mold and is responsible for guiding the molten plastic from the injection nozzle of the injection molding machine to the mold cavity.

[0005] During the long-term use of the die head, it will be affected by factors such as the high temperature, high pressure, and chemical corrosion of the molten plastic, resulting in surface wear, deformation, or damage. This wear will affect the flow path and distribution method of the plastic, thereby affecting the product quality and production efficiency. Therefore, it is necessary to regularly replace the die head to ensure product quality. However, currently, replacing the die head requires disassembling the injection mold, which is very troublesome and will reduce work efficiency. In addition, the channels in the gate are narrow, and there will be some residual plastic inside after being exposed to high temperature for a long time. It is easy to cause blockage after long-term use, so it also needs to be regularly cleaned. Summary of the Invention

[0006] The problems to be solved by the present invention are: the die head is troublesome to replace, and the gate is easily blocked after long-term use.

[0007] To solve the above technical problems, the technical solution of the present invention is: an injection mold facilitating quick replacement of a die head, including a mold component. The mold component includes an upper template. One side of the outer wall of the upper template is provided with a forming template. A gate channel is opened on the outer wall of the forming template. One side of the upper template is provided with a lower mold part. One side of the inner wall of the upper template is provided with a clamping mechanism for clamping a die head part. One side of the clamping mechanism is provided with a die head removing mechanism for removing and replacing the die head part. The inner wall of the upper template is provided with a cleaning mechanism. The clamping mechanism includes a die head installed inside the upper template. One side of the outer wall of the die head is provided with a side clamping plate. The outer walls of the side clamping plates are all connected with telescopic rods. Springs are installed around the outer walls of the telescopic rods. One side of the side clamping plate is provided with a regulating clamping plate. A sliding rod is connected to the outer wall of the regulating clamping plate.

[0008] Preferably, the die head removing mechanism includes a knob movably installed on one side of the outer wall of the upper template. The inner wall of the knob is connected with a cone pulley set through a coupling. The inner wall of the cone pulley set is installed with a linkage lead screw through a coupling. A moving block is movably installed on the outer wall of the linkage lead screw. A connecting rod is connected to the outer wall of the moving block.

[0009] Preferably, the cleaning mechanism includes a mounting rod installed at the bottom of the telescopic rod. One end of the mounting rod is movably installed with a linkage gear. A cleaning lead screw is movably installed inside the linkage gear. A rack is installed at the top of the gate channel.

[0010] Preferably, the three-dimensional view of the side clamping plate is semicircular. A cavity adapted to the die head is provided on the inner wall of the side clamping plate.

[0011] Preferably, the cone pulley set is provided with 3 cone pulleys. One of the cone pulleys of the cone pulley set is movably connected with the inner wall of the knob through a coupling. The remaining 2 cone pulleys of the cone pulley set are installed on one side of the knob.

[0012] Preferably, the moving block is movably installed on the outer wall of the linkage lead screw. The inner wall of the moving block is adapted to the thread on the outer wall of the linkage lead screw.

[0013] Preferably, one end of the connecting rod is connected to the outer wall of the moving block, and the other end of the connecting rod is connected to one end of the sliding rod.

[0014] Preferably, the inner wall of the linkage gear is provided with a thread adapted to the cleaning lead screw. The tooth grooves of the linkage gear are adapted to the tooth grooves of the rack.

[0015] Preferably, a die ejection channel is provided in the middle of one side of the outer wall of the upper template. A cavity is provided on one side of the die ejection channel. The die head removing mechanism is installed in the cavity on one side of the die ejection channel.

[0016] Preferably, chutes are provided at both the top and bottom of the mold ejection channel, and the connecting rods are movably installed in the chutes at the top and bottom of the mold ejection channel.

[0017] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0018] (1) By using the cooperation of the mold clamping mechanism and the mold taking mechanism, the present invention can make the originally complex operation of replacing the die head parts very easy. Compared with the traditional method of replacing the die head parts by disassembling the upper mold part of the injection mold, during the long-term use of the die head, it will be affected by factors such as the high temperature, high pressure, and chemical corrosion of the molten plastic, resulting in surface wear, deformation, or damage. In the present invention, the user only needs to turn the knob to control the internal components to push the die head out from the mold ejection channel, which greatly saves the time for replacing the die head parts. At the same time, the user can easily observe the damage condition of the die head from the mold ejection channel for subsequent replacement, further increasing the service life of the equipment and saving the time for the user to maintain the mold, thereby improving the production efficiency of the injection mold.

[0019] (2) By using the cleaning mechanism, the present invention enables the user to automatically clean the gate channel when replacing the die head parts. When the side clamping plate moves, the cleaning lead screw will be driven to move. At the same time, when the cleaning lead screw passes through, it will be driven to rotate and extend into the gate channel to clean the residual plastic on its inner wall. In this way, not only does the user not need to clean the gate channel separately, but only when replacing the die head, the cleaning mechanism provided inside the present invention can automatically clean the gate channel, which is not only simple and efficient but also can automatically clean and maintain the injection mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the installation position structure of the upper template of the present invention;

[0022] Figure 3 It is a schematic diagram of the installation position structure of the knob of the present invention;

[0023] Figure 4 It is a schematic diagram of the position structure of the mold ejection channel of the present invention;

[0024] Figure 5 It is a schematic diagram of the connection structure between the upper template and the forming template of the present invention;

[0025] Figure 6 It is a schematic diagram of the position structure of the mold clamping mechanism of the present invention;

[0026] Figure 7 Schematic diagram of the connection structure between the mounting rod and the side clamping plate of the present invention;

[0027] Figure 8 Schematic diagram of the structure of the mold clamping mechanism and the mold taking mechanism of the present invention;

[0028] Figure 9 Schematic diagram of the structure of the mold taking mechanism of the present invention;

[0029] Figure 10 Schematic diagram of the structure of the cleaning lead screw of the present invention;

[0030] Figure 11 Schematic diagram of the position distribution structure of the cleaning mechanism of the present invention;

[0031] Figure 12 For the present invention Figure 11 Partially enlarged structure schematic diagram of the marked position A.

[0032] In the figure: 1. Mold component; 101. Upper template; 102. Forming template; 103. Gate channel; 104. Lower mold part; 105. Demolding channel; 2. Mold clamping mechanism; 201. Die head; 202. Side clamping plate; 203. Expansion rod; 204. Spring; 205. Regulation clamping plate; 206. Slide bar; 3. Mold taking mechanism; 301. Knob; 302. Cone pulley set; 303. Linkage lead screw; 304. Moving block; 305. Connecting rod; 4. Cleaning mechanism; 401. Mounting rod; 402. Linkage gear; 403. Cleaning lead screw, 404. Rack. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are only a part rather than all of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0034] Unless otherwise defined, technical terms or scientific terms used in this disclosure shall have the ordinary meanings as understood by those of ordinary skill in the field to which this disclosure pertains. The words such as "including" or "comprising" used in this disclosure mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The words such as "connected" or "coupled" are not limited to physical or mechanical connections, and may also include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", and "right" are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0035] As Figures 1 to 12 shown, an injection mold facilitating quick die head replacement provided by the present invention includes 1. The mold component 1 includes an upper template 101. On one side of the outer wall of the upper template 101, a forming template 102 is provided. A gate channel 103 is formed on the outer wall of the forming template 102. On one side of the upper template 101, a lower mold part 104 is provided. On one side of the inner wall of the upper template 101, a clamping mechanism 2 for clamping die head parts is provided. On one side of the clamping mechanism 2, a die head removing mechanism 3 for removing and replacing die head parts is provided. A cleaning mechanism 4 for cleaning is provided on the inner wall of the upper template 101. The clamping mechanism 2 includes a die head 201 installed inside the upper template 101. On one side of the outer wall of the die head 201, side clamping plates 202 are provided. Expansion rods 203 are connected to the outer walls of the side clamping plates 202. Springs 204 are installed around the outer walls of the expansion rods 203. On one side of the side clamping plates 202, a regulating clamping plate 205 is installed. A sliding rod 206 is connected to the outer wall of the regulating clamping plate 205.

[0036] The die head removing mechanism 3 includes a knob 301 movably installed on one side of the outer wall of the upper template 101. The inner wall of the knob 301 is connected to a bevel gear set 302 through a coupling. The inner wall of the bevel gear set 302 is installed with a linkage lead screw 303 through a coupling. A moving block 304 is movably installed on the outer wall of the linkage lead screw 303. A connecting rod 305 is connected to the outer wall of the moving block 304.

[0037] The cleaning mechanism 4 includes a mounting rod 401 installed at the bottom of the expansion rod 203. One end of the mounting rod 401 is movably installed with a linkage gear 402. The inner wall of the linkage gear 402 is movably installed with a cleaning lead screw 403. A rack 404 is installed at the top of the gate channel 103.

[0038] The three-dimensional view of the side clamping plate 202 is semicircular. A cavity adapted to the die head 201 is provided on the inner wall of the side clamping plate 202. The side clamping plate 202 can clamp the die head 201.

[0039] The cone pulley set 302 is provided with a total of 3 bevel gears. One of the bevel gears of the cone pulley set 302 is movably connected to the inner wall of the knob 301 through a coupling. The remaining 2 bevel gears of the cone pulley set 302 are installed on one side of the knob 301. When the knob 301 rotates, it will drive the cone pulley set 302 to rotate.

[0040] The moving block 304 is movably installed on the outer wall of the linkage lead screw 303. The inner wall of the moving block 304 is adapted to the thread on the outer wall of the linkage lead screw 303. When the linkage lead screw 303 rotates, it can drive the moving block 304 to move.

[0041] One end of the connecting rod 305 is connected to the outer wall of the moving block 304, and the other end of the connecting rod 305 is connected to one end of the sliding rod 206. When the moving block 304 moves, it can drive the sliding rod 206 to move through the connecting rod 305.

[0042] The inner wall of the linkage gear 402 is provided with a thread adapted to the cleaning lead screw 403. The tooth grooves of the linkage gear 402 are adapted to the tooth grooves of the rack 404. The linkage gear 402 can be driven to rotate by the rack 404.

[0043] In the middle of one side of the outer wall of the upper template 101, a demolding channel 105 is provided. A cavity is provided on one side of the demolding channel 105. The demolding mechanism 3 is installed in the cavity on one side of the demolding channel 105.

[0044] Chute grooves are provided at both the top and the bottom of the demolding channel 105. The connecting rods 305 are all movably installed in the chute grooves at the top and the bottom of the demolding channel 105.

[0045] The working principle and usage process of the present invention: First, when the user replaces the die head, only the knob 301 needs to be rotated. When the knob 301 rotates, it will drive one of the bevel gears of the cone pulley set 302 to rotate. Subsequently, the remaining bevel gears of the cone pulley set 302 will be driven to rotate. When the cone pulley set 302 rotates, it will drive the linkage lead screw 303 to rotate. When the linkage lead screw 303 rotates, it will drive the two moving blocks 304, one moving upward and the other moving downward. When the moving blocks 304 move, they will drive the connecting rods 305 to move in the cavity on one side of the demolding channel 105. When the connecting rods 305 move, they will drive the sliding rods 206 to move. After the sliding rods 206 move, they will drive the regulating clamping plate 205 to move along an opening movement trajectory. After the extrusion of the regulating clamping plate 205 disappears, the telescopic rod 203 and the spring 204 on one side of the side clamping plate 202 will release the elastic force without the extrusion force and drive the side clamping plate 202 to move to one side. When the side clamping plate 202 moves, it will push the die head 201 installed on its inner wall to move synchronously. At this time, the die head 201 will be pushed to the demolding channel 105, and the user can take out the die head 201 on the inner wall of the side clamping plate 202;

[0046] Secondly, after the user takes out the die head 201, he can place the new die head 201 on the inner wall of the side clamping plate 202, and then push the die head 201 to one side until the telescopic rod 203 and the spring 204 shrink to the initial position. Since the injection mold of the present invention is installed inside the injection molding machine, and the clamping mechanism 2, the mold removal mechanism 3, and the cleaning mechanism 4 are all arranged on one side of the inner wall of the upper template 101, and the space left at the mold ejection channel 105 is large, the user can easily put his hand into the inner wall of the mold ejection channel 105 to push the side clamping plate 202. At this time, the user's hand is opposite to the slide bar 206. At this time, the user can turn the knob 301 to drive the slide bar 206 to move downward so that the regulating clamping plate 205 is aligned with the side clamping plate 202 again to fix the die head 201.

[0047] Finally, when the side clamping plate 202 moves to one side to push out the die head 201, the linkage gear 402 at one end of the mounting rod 401 will touch the rack 404 installed in the middle section of the inner wall of the upper template 101. At this time, the linkage gear 402 will be driven to rotate by the rack 404. When the linkage gear 402 rotates, the cleaning screw 403 will be driven to move to one side. When the side clamping plate 202 moves to the ejection channel 105, the cleaning screw 403 is just aligned with the gate channel 103, and the linkage gear 402 also rotates to the end of the rack 404 and the cleaning screw 403 will extend into the inner wall of the gate channel 103 to clean the residual plastic on its inner wall. At this point, this practical work is completed.

[0048] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the spirit and scope of protection of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present invention.

Claims

1. An injection mold facilitating quick die head replacement, comprising a mold component (1), characterized in that: The mold component (1) includes an upper template (101). On one side of the outer wall of the upper template (101), a forming template (102) is provided. A gate channel (103) is formed on the outer wall of the forming template (102). On one side of the upper template (101), a lower mold part (104) is provided. On one side of the inner wall of the upper template (101), a mold clamping mechanism (2) for clamping the die head parts is provided. On one side of the mold clamping mechanism (2), a mold taking mechanism (3) for taking out and replacing the die head parts is provided. A cleaning mechanism (4) for cleaning is provided on the inner wall of the upper template (101). The mold clamping mechanism (2) includes a die head (201) installed inside the upper template (101). On one side of the outer wall of the die head (201), side clamping plates (202) are provided. Telescopic rods (203) are connected to the outer walls of the side clamping plates (202). Springs (204) are installed around the outer walls of the telescopic rods (203). A regulating clamping plate (205) is installed on one side of the side clamping plates (202). A sliding rod (206) is connected to the outer wall of the regulating clamping plate (205). The mold taking mechanism (3) includes a knob (301) movably installed on one side of the outer wall of the upper template (101). The inner wall of the knob (301) is connected to a bevel gear set (302) through a coupling. The inner wall of the bevel gear set (302) is installed with a linkage lead screw (303) through a coupling. A moving block (304) is movably installed on the outer wall of the linkage lead screw (303). A connecting rod (305) is connected to the outer wall of the moving block (304). The cleaning mechanism (4) includes a mounting rod (401) installed at the bottom of the telescopic rod (203). One end of the mounting rod (401) is movably installed with a linkage gear (402). A cleaning lead screw (403) is movably installed inside the linkage gear (402). A rack (404) is installed at the top of the gate channel (103).

2. The injection mold for facilitating quick replacement of a die head according to claim 1, wherein: The three-dimensional view of the side clamping plate (202) is semi-circular, and a cavity adapted to the die head (201) is provided on the inner wall of the side clamping plate (202).

3. The injection mold for facilitating quick replacement of a die head according to claim 1, characterized in that: The bevel gear set (302) is provided with a total of 3 bevel gears. One of the bevel gears of the bevel gear set (302) is movably connected to the inner wall of the knob (301) through a coupling, and the remaining 2 bevel gears of the bevel gear set (302) are installed on one side of the knob (301).

4. An injection mold facilitating quick die head replacement according to claim 1, characterized in that: The moving block (304) is movably installed on the outer wall of the linkage lead screw (303), and the inner wall of the moving block (304) is adapted to the thread on the outer wall of the linkage lead screw (303).

5. The injection mold for facilitating quick replacement of a die head according to claim 1, characterized in that: One end of the connecting rod (305) is connected to the outer wall of the moving block (304), and the other end of the connecting rod (305) is connected to one end of the sliding rod (206).

6. The injection mold for facilitating quick replacement of a die head according to claim 1, wherein: The inner wall of the linkage gear (402) is provided with a thread adapted to the cleaning lead screw (403), and the tooth grooves of the linkage gear (402) are adapted to the tooth grooves of the rack (404).

7. An injection mold facilitating quick die head replacement according to claim 1, characterized in that: In the middle of one side of the outer wall of the upper template (101), a mold release channel (105) is provided. A cavity is provided on one side of the mold release channel (105). The mold taking mechanism (3) is installed in the cavity on one side of the mold release channel (105).

8. An injection mold facilitating quick die head replacement according to claim 7, characterized in that: Chute grooves are provided at both the top and the bottom of the mold release channel (105). The connecting rods (305) are movably installed in the chute grooves at the top and the bottom of the mold release channel (105).

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