Injection mold capable of conveniently and rapidly replacing mold head

Abstract

The invention relates to the field of injection molds, and discloses an injection mold convenient for rapidly replacing a mold head, the injection mold comprises a mold part, the mold part comprises an upper mold plate, and one side of the inner wall of the upper mold plate is provided with a mold clamping mechanism used for clamping a mold head part; a die taking mechanism used for taking out and replacing die head parts is arranged on one side of the die clamping mechanism, a cleaning mechanism used for cleaning is arranged on the inner wall of the upper die plate, and the die clamping mechanism comprises a die head installed in the upper die plate. The original complicated operation of replacing a die head part can be very easy by utilizing the matching of the die clamping mechanism and the die taking mechanism, and compared with the traditional mode that the die head part needs to be replaced by detaching the upper die part of the injection die, the service life of equipment is further prolonged; and meanwhile, the time for maintaining the mold by a user is greatly saved, and the production efficiency of the injection mold is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to an injection mold which is convenient for quickly replacing a mold head. Background Art

[0002] In the patent application with application publication number CN210389952U, a fixing device, an injection molding device and an injection molding head are included, and the characteristics are that an injection port is provided at one end of the injection molding head, a first connecting block and a second connecting block are provided on the outer surface of the injection molding head, a second connecting groove matching the second connecting block is provided on the side of the injection molding device close to the injection molding head, a fixing groove is provided on the end of the second connecting groove away from the injection molding head, a groove is provided on the outer surface of the injection molding device close to the second connecting groove, the cavity of the fixing device is convex, and a matching first connecting groove is provided on the inner surface parallel to the first connecting block.

[0003] The advantages are: the injection mold with an injection head that is easy to disassemble and replace is interconnected through a fixing device, an injection device, and an injection head, has a reasonable structure, is easy to operate, is easy to replace, and improves work efficiency.

[0004] Injection molding machine is the mainstream equipment for molding 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. The die head is installed inside the upper mold. The die head is usually located in the gate system of the mold and is responsible for guiding the molten plastic from the injection molding machine nozzle to the mold cavity.

[0005] During long-term use, the die head will be affected by factors such as high temperature, high pressure and chemical corrosion of the molten plastic, causing its surface to wear, deform or be damaged. This wear will affect the flow path and distribution method of the plastic, and further affect the quality and production efficiency of the product. Therefore, the die head needs to be replaced regularly to ensure product quality. However, the current replacement of the die head requires the injection mold to be disassembled for replacement, which is very troublesome and will reduce work efficiency. In addition, the channel in the gate is narrow, and the plastic will have some residual plastic inside after being exposed to high temperature for a long time, which is easy to cause blockage after long-term use, so it also needs to be cleaned regularly. Summary of the invention

[0006] The problem to be solved by the invention is that the die head is troublesome to replace and the gate is easy to be blocked after long-term use.

[0007] In order to solve the above technical problems, the technical solution of the present invention is: an injection mold that is convenient for quickly replacing a die head, comprising a mold component, the mold component comprising an upper template, one side of the inner wall of the upper template is provided with a clamping mechanism for clamping the die head parts, one side of the clamping mechanism is provided with a mold taking mechanism for taking out and replacing the die head parts, the inner wall of the upper template is provided with a cleaning mechanism for cleaning, the clamping mechanism comprises 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 connected to telescopic rods, the outer walls of the telescopic rods are surrounded by springs, one side of the side clamping plates is provided with a regulating clamping plate, and the outer wall of the regulating clamping plate is connected to a sliding rod.

[0008] Preferably, the mold taking mechanism includes a knob movably mounted on one side of the outer wall of the upper template, the inner wall of the knob is connected to a cone wheel group via a coupling, the inner wall of the cone wheel group is installed with a linkage screw via a coupling, the outer wall of the linkage screw is movably mounted with a moving block, and the outer wall of the moving block is connected to a connecting rod.

[0009] Preferably, the cleaning mechanism comprises a mounting rod installed at the bottom of the telescopic rod, a linkage gear is movably mounted on one end of the mounting rod, a cleaning screw is movably mounted on the inner wall of the linkage gear, and a rack is mounted on the top of the gate channel.

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

[0011] Preferably, the bevel gear set is provided with 3 bevel gears in total, one of the bevel gears in the bevel gear set is movably connected to the inner wall of the knob through a coupling, and the remaining 2 bevel gears in the bevel gear set are installed on one side of the knob.

[0012] Preferably, the moving block is movably mounted on the outer wall of the linkage screw rod, and the inner wall of the moving block is adapted to the thread of the outer wall of the linkage screw rod.

[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 matched with the cleaning screw, and the tooth groove of the linkage gear is matched with the tooth groove of the rack.

[0015] Preferably, a cavity is provided on one side of the demoulding channel, and the mold removal mechanism is installed in the cavity on one side of the demoulding channel.

[0016] Preferably, the top and bottom of the demoulding channel are provided with slide grooves, and the connecting rods are movably installed in the slide grooves at the top and bottom of the demoulding channel.

[0017] Compared with the prior art, the technical solution of the present invention has the following advantages: (1) The present invention can make the originally complicated operation of replacing die head parts very easy by utilizing the cooperation of the mold clamping mechanism and the mold removal mechanism. Compared with the traditional replacement of die head parts, the upper mold part of the injection mold needs to be disassembled for replacement. During long-term use, the die head will be affected by factors such as high temperature, high pressure and chemical corrosion of the molten plastic, resulting in surface wear, deformation or damage. The present invention only requires the user to turn the knob to control the internal components to push the die head out of the mold outlet channel, which greatly saves the time of replacing the die head parts. At the same time, the user can easily observe the damage of the die head from the mold outlet channel for subsequent replacement, further increasing the service life of the equipment and saving the user's time in maintaining the mold, thereby improving the production efficiency of the injection mold; (2) The present invention utilizes a cleaning mechanism to enable the user to automatically clean the gate channel when replacing the die head parts. When the side clamp moves, the cleaning screw will be driven to move. At the same time, the cleaning screw will be driven to rotate when passing through the gate channel to extend into the gate channel to clean the residual plastic on the inner wall. In this way, not only does the user not need to clean the gate channel separately, but the cleaning mechanism provided inside the present invention can automatically clean the gate channel when replacing the die head. This is not only simple and efficient, but also can automatically clean and maintain the injection mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the installation position structure of the upper template of the present invention; Figure 3 This is a schematic diagram of the installation position structure of the knob of the present invention; Figure 4 This is a schematic diagram of the position structure of the mold outlet channel of the present invention; Figure 5 It is a schematic diagram of the connection structure between the upper template and the finished template of the present invention; Figure 6 It is a schematic diagram of the position structure of the clamping mechanism of the present invention; Figure 7 It is a schematic diagram of the connection structure between the mounting rod and the side clamping plate of the present invention; Figure 8 It is a structural schematic diagram of the mold clamping mechanism and the mold taking mechanism of the present invention; Fig. 9 It is a structural schematic diagram of the mold taking mechanism of the present invention; Fig.10 It is a structural schematic diagram of the cleaning screw rod of the present invention; Fig.11 It is a schematic diagram of the position distribution structure of the cleaning mechanism of the present invention; Fig.12 For the present invention Fig.11 Schematic diagram of the partial enlarged structure at the marked A.

[0019] In the figure: 1. mold parts; 101. upper mold plate; 102. mold plate; 103. gate channel; 104. lower mold part; 105. demoulding channel; 2. mold clamping mechanism; 201. die head; 202. side clamping plate; 203. telescopic rod; 204. spring; 205. regulating clamping plate; 206. sliding rod; 3. mold removal mechanism; 301. knob; 302. cone wheel group; 303. linkage screw rod; 304. moving block; 305. connecting rod; 4. cleaning mechanism; 401. mounting rod; 402. linkage gear; 403. cleaning screw rod, rack 404, rack. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0021] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. "Include" or "comprise" and other similar words used in the present disclosure mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figures 1 to 12As shown, the present invention provides an injection mold for quickly replacing a die head, comprising 1, a mold component 1 comprises an upper template 101, a clamping mechanism 2 for clamping die head parts is arranged on one side of the inner wall of the upper template 101, a mold removal mechanism 3 for taking out and replacing die head parts is arranged on one side of the clamping mechanism 2, a cleaning mechanism 4 for cleaning is arranged on the inner wall of the upper template 101, the clamping mechanism 2 comprises a die head 201 installed inside the upper template 101, a side clamping plate 202 is arranged on one side of the outer wall of the die head 201, the outer walls of the side clamping plates 202 are connected with telescopic rods 203, the outer walls of the telescopic rods 203 are surrounded by springs 204, a regulating clamping plate 205 is installed on one side of the side clamping plate 202, and the outer wall of the regulating clamping plate 205 is connected with a sliding rod 206.

[0023] The mold removal mechanism 3 includes a knob 301 movably mounted on one side of the outer wall of the upper mold plate 101, the inner wall of the knob 301 is connected to a cone wheel set 302 via a coupling, the inner wall of the cone wheel set 302 is mounted with a linkage screw rod 303 via a coupling, the outer wall of the linkage screw rod 303 is movably mounted with a moving block 304, and the outer wall of the moving block 304 is connected to a connecting rod 305.

[0024] The cleaning mechanism 4 includes a mounting rod 401 mounted at the bottom of the telescopic rod 203 , a linkage gear 402 is movably mounted on one end of the mounting rod 401 , a cleaning screw 403 is movably mounted on the inner wall of the linkage gear 402 , and a rack 404 is mounted on the top of the gate channel 103 .

[0025] The side clamping plate 202 is semicircular in three-dimensional view, and the inner wall of the side clamping plate 202 is provided with a cavity adapted to the die head 201 , so that the side clamping plate 202 can clamp the die head 201 .

[0026] The bevel gear set 302 is provided with 3 bevel gears in total, one of which 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. When the knob 301 is rotated, the bevel gear set 302 will be mobilized to rotate.

[0027] The moving block 304 is movably mounted on the outer wall of the linkage screw rod 303 , and the inner wall of the moving block 304 is matched with the thread of the outer wall of the linkage screw rod 303 . When the linkage screw rod 303 rotates, the moving block 304 can be driven to move.

[0028] 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, the sliding rod 206 can be driven to move by the connecting rod 305 .

[0029] The inner wall of the linkage gear 402 is provided with a thread matched with the cleaning screw 403 , and the tooth groove of the linkage gear 402 is matched with the tooth groove of the rack 404 , so that the linkage gear 402 can be driven to rotate by the rack 404 .

[0030] A cavity is provided on one side of the demoulding channel 105 , and the mold removal mechanism 3 is installed in the cavity on one side of the demoulding channel 105 .

[0031] The top and bottom of the demoulding channel 105 are both provided with slide grooves, and the connecting rods 305 are both movably installed in the slide grooves at the top and bottom of the demoulding channel 105 .

[0032] The working principle and use process of the present invention are as follows: first, when replacing the die head, the user only needs to rotate the knob 301. When the knob 301 is rotated, one of the bevel gears of the bevel wheel group 302 will be driven to rotate, and the remaining bevel gears of the subsequent bevel wheel group 302 will be driven to rotate. When the bevel wheel group 302 rotates, it will drive the linkage screw rod 303 to rotate. When the linkage screw rod 303 rotates, it will drive two moving blocks 304, one to move upward and the other to move downward. When the moving block 304 moves, it will drive the connecting rod 305 to move in the cavity on one side of the ejection channel 105. When the connecting rod 305 moves, the sliding rod 206 moves. When the sliding rod 206 moves, the regulating clamping plate 205 is moved to an open track. After the regulating clamping plate 205 is no longer squeezed, the telescopic rod 203 and the spring 204 on one side of the side clamping plate 202 have no squeezing force and release the elastic force to drive the side clamping plate 202 to move to one side. When the side clamping plate 202 moves, it pushes the die head 201 installed on its inner wall to move synchronously. At this time, the die head 201 will be pushed to the ejection channel 105, and the user can take out the die head 201 on the inner wall of the side clamping plate 202. Secondly, after the user takes out the die head 201, the user 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; 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, and the linkage gear 402 will be driven to rotate by the rack 404 at this time. When the linkage gear 402 rotates, the cleaning screw 403 will be driven to move to one side, and 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 the inner wall, and the practical work is now completed.

[0033] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope 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 essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. An injection mold for facilitating rapid die head replacement, comprising a mold component (1), characterized in that: The mold component (1) comprises an upper mold plate (101), a mold clamping mechanism (2) for clamping a mold head part is arranged on one side of the inner wall of the upper mold plate (101), a mold removal mechanism (3) for removing and replacing the mold head part is arranged on one side of the mold clamping mechanism (2), a cleaning mechanism (4) for cleaning is arranged on the inner wall of the upper mold plate (101), the mold clamping mechanism (2) comprises a mold head (201) installed inside the upper mold plate (101), a side clamping plate (202) is arranged on one side of the outer wall of the mold head (201), the outer walls of the side clamping plates (202) are connected to telescopic rods (203), the outer walls of the telescopic rods (203) are surrounded by springs (204), and a regulating clamping plate (205) is installed on one side of the side clamping plate (202), and the outer wall of the regulating clamping plate (205) is connected to a sliding rod (206).

2. The injection mold for facilitating quick die head replacement according to claim 1, characterized in that: The mold taking mechanism (3) comprises a knob (301) movably mounted on one side of the outer wall of the upper mold plate (101); the inner wall of the knob (301) is connected to a cone wheel group (302) via a coupling; a linkage screw rod (303) is mounted on the inner wall of the cone wheel group (302) via a coupling; a moving block (304) is movably mounted on the outer wall of the linkage screw rod (303); and the outer wall of the moving block (304) is connected to a connecting rod (305).

3. The injection mold for facilitating quick die head replacement according to claim 1, characterized in that: The cleaning mechanism (4) comprises a mounting rod (401) mounted at the bottom of the telescopic rod (203); a linkage gear (402) is movably mounted on one end of the mounting rod (401); a cleaning screw (403) is movably mounted on the inner wall of the linkage gear (402); and a rack (404) is mounted on the top of the gate channel (103).

4. The injection mold for facilitating quick die head replacement according to claim 1, characterized in that: The side clamping plate (202) is semicircular in three-dimensional view, and the inner wall of the side clamping plate (202) is provided with a cavity adapted to the die head (201).

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

6. The injection mold for facilitating quick die head replacement according to claim 2, characterized in that: The moving block (304) is movably mounted on the outer wall of the linkage screw rod (303), and the inner wall of the moving block (304) is adapted to the thread of the outer wall of the linkage screw rod (303).

7. The injection mold for facilitating quick die head replacement according to claim 2, 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).

8. The injection mold for facilitating quick die head replacement according to claim 3, characterized in that: The inner wall of the linkage gear (402) is provided with a thread matched with the cleaning screw (403), and the tooth groove of the linkage gear (402) is matched with the tooth groove of the rack (404).

9. The injection mold for facilitating quick die head replacement according to claim 1, characterized in that: A cavity is provided on one side of the demoulding channel (105), and the mold removal mechanism (3) is installed in the cavity on one side of the demoulding channel (105).

10. The injection mold for facilitating quick die head replacement according to claim 2, characterized in that: The top and bottom of the demoulding channel (105) are both provided with sliding grooves, and the connecting rods (305) are both movably installed in the sliding grooves at the top and bottom of the demoulding channel (105).

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