Plastic suction mold convenient to demold

Abstract

The utility model provides a plastic suction mold convenient to demold. The plastic suction mold comprises a plastic suction machine, a demolding assembly is arranged on the inner side of the plastic suction machine, and an auxiliary assembly is arranged on the inner side of the demolding assembly; the demolding assembly comprises rotating frames which are arranged on the inner side of the plastic vacuum forming machine in a left-right rotatable mode, supporting frames are fixedly arranged on the opposite sides of the two rotating frames, and fixing pieces are arranged at the tops of the supporting frames. According to the plastic uptake mold convenient to demold, the rotating frame is driven to rotate through rotation of the output end of the driving motor, then the supporting frame is driven to turn over, the balancing weight can move towards the side close to the bottom of the lower mold under the action of gravity by being matched with the arrangement of the auxiliary assembly, and then the ejection piece is pushed to eject out a plastic uptake part; and through the arrangement of the buffer spring, the ejection piece can be slowly ejected out, the plastic uptake part is prevented from being damaged, the structure is simple and practical, the plastic uptake part is prevented from being damaged to a large extent, demolding of a product with a complex structure is facilitated, and the demolding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of plastic thermoforming molds, and particularly to a plastic thermoforming mold convenient for demolding. Background Art

[0002] A plastic thermoforming mold refers to the mold used in plastic thermoforming production. The cheapest one is the gypsum mold, followed by the electroplated copper mold, and the most expensive one is the aluminum mold. The mold is drilled with small holes for vacuum adsorption of the heat-softened hard film to form a plastic thermoforming product. The resin mold is more expensive than the copper mold and the gypsum mold, but its service life is comparable to that of the copper mold and it is more durable, and it can solve some technical problems that the copper mold and the gypsum mold cannot handle, such as water streaks on the wall of the product, and better effects can be achieved with such a mold.

[0003] The application scope of plastic thermoforming molds is very wide, mainly including but not limited to the following aspects: Packaging industry: manufacturing various types of plastic packaging boxes, trays, containers, etc. for packaging food, medicine, cosmetics and other products. Automobile parts: manufacturing automobile interior parts, exterior parts, components, etc., such as instrument panels, door panels, bumpers, etc. Household items: manufacturing furniture accessories, household items, children's toys, etc., such as clothes hangers, storage boxes, toy models, etc.

[0004] Plastic thermoforming molds play an important role in plastic product processing, and full attention and concern should be paid to aspects such as their materials, characteristics, application scope, and maintenance. Application No.: CN202221433926.6 provides a plastic thermoforming mold convenient for demolding. The output shaft of the hydraulic cylinder drives the mounting plate to move downward, so that the mold body can be quickly separated from the plastic hardware. However, when this device is in use, for products with complex structures, the product may not be completely demolded from the mold, and manual demolding is required when it cannot be demolded, which may cause damage to the product and result in low demolding efficiency.

[0005] Therefore, it is necessary to provide a plastic thermoforming mold convenient for demolding to solve the above technical problems. Summary of the Utility Model

[0006] The utility model provides a plastic thermoforming mold convenient for demolding, which solves the problem that in the related art, for products with complex structures, some existing plastic thermoforming molds convenient for demolding may not be able to completely demold the product from the mold during use and are prone to damage the product.

[0007] To solve the above technical problems, a plastic thermoforming mold convenient for demolding provided by the utility model includes: a plastic thermoforming machine, a demolding assembly is arranged inside the plastic thermoforming machine, and an auxiliary assembly is arranged inside the demolding assembly;

[0008] The demoulding assembly includes a rotating frame rotatably arranged on the inner side of the plastic vacuum forming machine from left to right. On the opposite sides of the two rotating frames, there are fixed support frames. On the top of the support frame, there is a fixing member. Inside the fixing member, there is a lower mold. Inside the lower mold, a group of ejector sheets are slidably arranged up and down.

[0009] The auxiliary assembly includes a cooling cavity arranged inside the lower mold. Inside the support frame and on the right side of the lower mold, there is a cold water tank. The right side of the cooling cavity is communicated with the inside of the cold water tank.

[0010] Preferably, a connecting rod is arranged at the bottom of the ejector sheet. The peripheral side of the connecting rod is slidably connected with the inside of the lower mold. The bottom end of the connecting rod penetrates through the inside of the lower mold and extends to its bottom. A counterweight is arranged at the bottom end of the connecting rod. On the top of the counterweight and on the peripheral side of the connecting rod, there is a buffer spring. The top end of the buffer spring is fixedly connected with the bottom of the lower mold.

[0011] Preferably, the fixing member includes a fixing block fixedly arranged on the top of the support frame. A screw rod is rotatably connected with a threaded connection on the top of the fixing block. The bottom end of the screw rod penetrates through the top of the fixing block and extends to its inside. The bottom of the screw rod is rotatably provided with a fastening piece. The bottom of the fastening piece is closely attached to the top of the lower mold.

[0012] Preferably, the left end of the left rotating frame penetrates through the inside of the plastic vacuum forming machine and extends to its left side. At the bottom on the left side of the plastic vacuum forming machine, there is a driving motor. The output end on the left side of the driving motor is belt-connected with the left end of the left rotating frame.

[0013] Preferably, a partition plate is arranged on the inner wall of the cold water tank. At the front side of the partition plate and at the bottom of the inner wall of the cold water tank, there is a water pump. The water suction pipe of the water pump is communicated with the inside of the cold water tank. The water outlet pipe on the left side of the water pump is communicated with the front side of the right side of the cooling cavity.

[0014] Preferably, a placement rack is arranged on the top of the plastic vacuum forming machine. On the top of the placement rack, there is a hydraulic rod. The telescopic end at the bottom of the hydraulic rod and inside the placement rack, there is an upper mold.

[0015] Compared with the related art, a plastic vacuum forming mold convenient for demoulding provided by the present utility model has the following beneficial effects:

[0016] The utility model provides a plastic - suction mold convenient for demolding. The rotation of the output end of a driving motor drives the rotation of a rotating frame, and then drives the turnover of a supporting frame. With the arrangement of an auxiliary component, under the action of gravity, a counterweight block will move towards the side close to the bottom of the lower mold, and then push a top sheet to eject the plastic - suction part. Through the arrangement of buffer springs, the top sheet can be ejected slowly to avoid damage to the plastic - suction part. The structure is simple and practical, greatly avoiding damage to the plastic - suction part, and being beneficial to the demolding of products with complex structures, improving the demolding efficiency. Brief Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of a preferred embodiment of a plastic - suction mold convenient for demolding provided by the utility model;

[0018] Figure 2 is Figure 1 a schematic structural diagram of a left - view partial section of the lower mold shown;

[0019] Figure 3 is Figure 2 a schematic structural diagram of a partial section of the top sheet shown.

[0020] Reference numerals in the figure: 1, plastic - suction machine; 2, demolding component; 21, rotating frame; 22, supporting frame; 23, fixing part; 231, fixing block; 232, screw; 24, lower mold; 25, top sheet; 26, connecting rod; 27, counterweight block; 28, buffer spring; 29, driving motor; 3, auxiliary component; 31, cooling cavity; 32, cold - water tank; 33, partition board; 34, water pump; 4, placing rack; 5, hydraulic rod; 6, upper mold. Detailed Embodiment

[0021] The following further illustrates the utility model in conjunction with the drawings and embodiments.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , where Figure 1 is a schematic structural diagram of a preferred embodiment of a plastic - suction mold convenient for demolding provided by the utility model; Figure 2 is Figure 1 a schematic structural diagram of a left - view partial section of the lower mold shown; Figure 3 is Figure 2 a schematic structural diagram of a partial section of the lower mold shown. A plastic - suction mold convenient for demolding includes: a plastic - suction machine 1, a demolding component 2 is arranged inside the plastic - suction machine 1, and an auxiliary component 3 is arranged inside the demolding component 2;

[0023] The demolding assembly 2 includes a rotating frame 21 rotatably arranged on the inner side of the plastic vacuum forming machine 1 from left to right. On the opposite sides of the two rotating frames 21, a support frame 22 is fixedly arranged. On the top of the support frame 22, a fixing member 23 is arranged. Inside the fixing member 23, a lower mold 24 is arranged. Inside the lower mold 24, a set of top sheets 25 are slidably arranged up and down.

[0024] The rotation of the rotating frame 21 will drive the rotation of the support frame 22, and then drive the entire lower mold 24 to rotate. When the lower mold 24 rotates, the formed plastic vacuum formed part will be placed below the lower mold 24. At this time, the non - adhesive material will fall off by itself.

[0025] The auxiliary assembly 3 includes a cooling cavity 31 arranged inside the lower mold 24. Inside the support frame 22 and on the right side of the lower mold 24, a cold water tank 32 is arranged. The right side of the cooling cavity 31 is communicated with the inside of the cold water tank 32.

[0026] The cold water inside the cold water tank 32 is discharged into the cooling cavity 31 through a water pump 34. Then the cold water takes away the heat inside the lower mold 24. Due to the different materials of the mold and the plastic vacuum formed part, under the action of thermal expansion and contraction, the plastic vacuum formed part is more likely to fall off.

[0027] At the bottom of the top sheet 25, a connecting rod 26 is arranged. The circumferential side of the connecting rod 26 is slidably connected with the inside of the lower mold 24. The bottom end of the connecting rod 26 penetrates the inside of the lower mold 24 and extends to its bottom. At the bottom end of the connecting rod 26, a counterweight 27 is arranged. On the top of the counterweight 27 and on the circumferential side of the connecting rod 26, a buffer spring 28 is arranged. The top end of the buffer spring 28 is fixedly connected with the bottom of the lower mold 24.

[0028] Through the arrangement of the connecting rod 26 and the counterweight 27, when the lower mold 24 is turned over, under the action of gravity, the counterweight 27 will move towards the side close to the bottom of the lower mold 24, and then push the top sheet 25 to eject the plastic vacuum formed part. And through the arrangement of the buffer spring 28, the top sheet 25 can be ejected slowly to avoid damaging the plastic vacuum formed part.

[0029] The fixing member 23 includes a fixing block 231 fixedly arranged on the top of the support frame 22. On the top of the fixing block 231, a screw rod 232 is rotatably connected with a thread. The bottom end of the screw rod 232 penetrates the top of the fixing block 231 and extends to its inside. At the bottom of the screw rod 232, a fastening piece is rotatably arranged. The bottom of the fastening piece is closely attached to the top of the lower mold 24.

[0030] By placing the lower mold 24 inside the fixing block 231 and then rotating the screw rod 232, under the action of the thread, the bottom end of the screw rod 232 will gradually descend, and finally cooperate with the fastening piece to fix the lower mold 24.

[0031] The left end of the left rotating frame 21 penetrates through the inside of the plastic vacuum forming machine 1 and extends to its left side. A driving motor 29 is provided at the bottom on the left side of the plastic vacuum forming machine 1. The output end on the left side of the driving motor 29 is connected to the left end of the left rotating frame 21 by a belt.

[0032] A partition plate 33 is provided on the inner wall of the cold water tank 32. A water pump 34 is provided on the front side of the partition plate 33 and at the bottom of the inner wall of the cold water tank 32. The water suction pipe of the water pump 34 communicates with the inside of the cold water tank 32. The water outlet pipe on the left side of the water pump 34 communicates with the front side on the right side of the cooling cavity 31.

[0033] A baffle is provided inside the cooling cavity 31, so that the cold water can only be discharged after surrounding the cooling cavity 31.

[0034] A placement rack 4 is provided on the top of the plastic vacuum forming machine 1. A hydraulic rod 5 is provided on the top of the placement rack 4. The telescopic end at the bottom of the hydraulic rod 5 and inside the placement rack 4 is provided with an upper mold 6.

[0035] The working principle of a plastic vacuum forming mold that is convenient for demolding provided by the present utility model is as follows:

[0036] The first step: When in use, by placing the lower mold 24 inside the fixing block 231, and then rotating the screw rod 232, the bottom end of the screw rod 232 will gradually descend under the action of the thread, and finally cooperate with the fastening piece to fix the lower mold 24. The upper mold 6 is driven to merge with the lower mold 24 by the extension of the output end of the hydraulic rod 5, and finally the plastic vacuum forming machine 1 completes plastic vacuum forming.

[0037] The second step: When demolding, the rotation of the output end of the driving motor 29 drives the rotation of the rotating frame 21, and then drives the flipping of the support frame 22. After the support frame 22 flips 180 degrees, it stops rotating. At this time, if the plastic vacuum formed part does not adhere, it will fall off by itself. When the lower mold 24 flips, the counterweight 27 will move towards the side close to the bottom of the lower mold 24 under the action of gravity, and then push the top piece 25 to eject the plastic vacuum formed part. Through the setting of the buffer spring 28, the top piece 25 can be ejected slowly to avoid damage to the plastic vacuum formed part.

[0038] The third step: During the flipping process, the cold water inside the cold water tank 32 is discharged into the cooling cavity 31 by the water pump 34. Then the cold water takes away the heat inside the lower mold 24. Due to the different materials of the mold and the plastic vacuum formed part, under the action of thermal expansion and contraction, the plastic vacuum formed part is more likely to fall off.

[0039] Compared with the related technology, a plastic vacuum forming mold that is convenient for demolding provided by the present utility model has the following beneficial effects:

[0040] The rotation of the output end of the driving motor 29 drives the rotation of the rotating frame 21, and further drives the flipping of the support frame 22. With the setting of the auxiliary component 3, under the action of gravity, the counterweight 27 will move towards the side close to the bottom of the lower mold 24, and then push the top piece 25 to eject the plastic suction part. Through the setting of the buffer spring 28, the top piece 25 can be ejected slowly to avoid damage to the plastic suction part. The structure is simple and practical, which can largely avoid damage to the plastic suction part, and is beneficial to the demoulding of products with complex structures, improving the demoulding efficiency.

[0041] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A blister mold that is easy to demould, characterized in that: include: A blister machine (1), wherein a demoulding component (2) is arranged on the inner side of the blister machine (1), and an auxiliary component (3) is arranged on the inner side of the demoulding component (2); The demoulding assembly (2) comprises a rotating frame (21) which is rotatable left and right and is arranged inside the blister machine (1); a support frame (22) is fixedly arranged on one side opposite to the two rotating frames (21); a fixing member (23) is arranged on the top of the support frame (22); a lower mold (24) is arranged inside the fixing member (23); and a group of top sheets (25) are arranged inside the lower mold (24) so ​​as to slide up and down. The auxiliary component (3) comprises a cooling cavity (31) arranged inside the lower mold (24), a cold water tank (32) is arranged inside the support frame (22) and on the right side of the lower mold (24), and the right side of the cooling cavity (31) is connected to the inside of the cold water tank (32).

2. A convenient demoulding blister mold according to claim 1, characterized in that: A connecting rod (26) is provided at the bottom of the top plate (25), and the peripheral side surface of the connecting rod (26) is slidably connected to the inner side of the lower mold (24). The bottom end of the connecting rod (26) passes through the inner side of the lower mold (24) and extends to the bottom thereof. A counterweight block (27) is provided at the bottom end of the connecting rod (26), and a buffer spring (28) is provided at the top of the counterweight block (27) and located on the peripheral side surface of the connecting rod (26), and the top end of the buffer spring (28) is fixedly connected to the bottom of the lower mold (24).

3. A convenient demoulding blister mold according to claim 1, characterized in that: The fixing member (23) comprises a fixing block (231) fixedly arranged on the top of the support frame (22); the top of the fixing block (231) is rotatably threadedly connected to a screw rod (232); the bottom end of the screw rod (232) passes through the top of the fixing block (231) and extends to the inside thereof; the bottom of the screw rod (232) is rotatably provided with a fastening plate; the bottom of the fastening plate is tightly fitted to the top of the lower mold (24).

4. The convenient demoulding blister mold according to claim 1, characterized in that: The left end of the rotating frame (21) on the left side passes through the inner side of the blister machine (1) and extends to the left side thereof. A driving motor (29) is arranged at the bottom of the left side of the blister machine (1). The output end on the left side of the driving motor (29) is connected to the left end belt of the rotating frame (21) on the left side.

5. The convenient demoulding blister mold according to claim 1, characterized in that: The inner wall of the cold water tank (32) is provided with a partition plate (33), and a water pump (34) is provided on the front side of the partition plate (33) and at the bottom of the inner wall of the cold water tank (32); a water pump (34) is connected to the interior of the cold water tank (32), and a water outlet pipe on the left side of the water pump (34) is connected to the front side of the right side of the cooling chamber (31).

6. The convenient demoulding blister mold according to claim 1, characterized in that: A placement rack (4) is arranged on the top of the blister machine (1), a hydraulic rod (5) is arranged on the top of the placement rack (4), and an upper mold (6) is arranged at the telescopic end of the bottom of the hydraulic rod (5) and located on the inner side of the placement rack (4).

Images