Mold for cup thermal forming plastic suction machine

Abstract

The utility model belongs to the field of plastic vacuum forming machines, and particularly relates to a mold for a cup thermal forming plastic vacuum forming machine, which comprises a base, a stand column is fixedly mounted at the top end of the base, a top plate is fixedly mounted at the top end of the stand column, and a hydraulic cylinder is fixedly mounted in the middle of the top plate. The telescopic end of the hydraulic cylinder extends to the position below the top plate, a movable plate is fixedly mounted at the end, a die holder is fixedly mounted at the bottom of the movable plate, a die head is mounted at the bottom of the die holder, a mounting cavity is formed in the top end of the base, and a die core is mounted in the mounting cavity. A cooling assembly is arranged below the mounting cavity and comprises a mounting block, an inner cavity is formed in the middle of the side wall of the mold core, and first L-shaped water inlet pipes are symmetrically mounted in the two sides of the mounting block; the mold core can be cooled through the cooling assembly, so that a cup can be quickly cooled and formed, in addition, the cup in the mold core can be jacked up, demolding is facilitated, operation is easy, and demolding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of plastic vacuum forming machines, in particular to a mold for a cup thermoforming plastic vacuum forming machine. Background Technique

[0002] A plastic vacuum forming machine, also known as a thermoforming machine, is a machine that sucks heated and plasticized thermoplastic plastic coils such as PVC, PE, PP, PET, and HIPS into various shapes of high-grade packaging boxes, frames and other products. Using the vacuum suction generated by a vacuum pump, thermoplastic plastic sheets such as PVC and PET after being heated and softened are sucked into various shapes of vacuum covers, plastic vacuum forming trays, blister shells, etc. through a mold. However, in the prior art, most of the molds of plastic vacuum forming machines for manufacturing cups have a single and fixed structure, which is not convenient for demolding, affects production efficiency, and is not conducive to wide promotion and popularization. Therefore, a mold for a cup thermoforming plastic vacuum forming machine is proposed for the above problems. Content of the Utility Model

[0003] In order to make up for the deficiencies of the prior art and solve the problems that most of the molds of plastic vacuum forming machines for manufacturing cups in the prior art have a single and fixed structure, are not convenient for demolding, and affect production efficiency, the utility model proposes a mold for a cup thermoforming plastic vacuum forming machine.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows: A mold for a cup thermoforming plastic vacuum forming machine of the utility model includes a base, a column is fixedly installed at the top end of the base, a top plate is fixedly installed at the top end of the column, a hydraulic cylinder is fixedly installed in the middle of the top plate, the telescopic end of the hydraulic cylinder extends below the top plate and a movable plate is fixedly installed at the end, a mold base is fixedly installed at the bottom of the movable plate, a mold head is installed at the bottom of the mold base, an installation cavity is opened at the top end of the base, and a mold core is installed inside the installation cavity;

[0005] A cooling assembly is arranged below the installation cavity. The cooling assembly includes a mounting block. The mounting block is fixedly installed at the bottom of the installation cavity. The mounting block is in a boss shape. The top end of the mounting block is inserted into a through hole opened in the center of the bottom of the mold core. An inner cavity is opened in the middle of the side wall of the mold core. L-shaped water inlet pipes I are symmetrically installed inside both sides of the mounting block. The top ends of the water inlet pipes I are horizontally communicated with the inner cavity of the mold core. The bottom ends of the water inlet pipes I penetrate through the mounting block and extend into a water storage cavity below;

[0006] Preferably, a connecting rod is vertically and sealingly slidably installed in the center of the mounting block. The top end of the connecting rod is fixedly connected with a push plate. An activity cavity is opened inside the bottom of the mounting block. The bottom end of the connecting rod is fixedly connected with a floating plate. The floating plate is slidably arranged in the activity cavity. A water inlet pipe II is fixedly installed at the bottom of the activity cavity. The water inlet pipe II communicates the water storage cavity and the activity cavity. An electromagnetic valve is fixedly installed on the water inlet pipe II.

[0007] Preferably, the floating plate is a hollow plate.

[0008] Preferably, the first water inlet pipe slidably penetrates through the floating plate.

[0009] Preferably, a fixing plate is fixedly installed on the outer side of the top of the mold core, and the fixing plate is fixedly connected to the base by bolts.

[0010] Preferably, a threaded rod is fixedly connected to the top end of the die head, and the threaded rod is threadedly connected to a threaded hole formed in the mold base.

[0011] Preferably, the edge position of the movable plate is slidably sleeved on the column.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. By providing structures such as mounting blocks, the first water inlet pipe, the inner cavity, and the water storage cavity, during use, by continuously injecting cooling water into the water storage cavity, the cooling water flows into the inner cavity on the side wall of the mold core through the water inlet pipe, and thus the cup inside the mold core can be cooled, so that the cup can be quickly cooled and formed.

[0014] 2. By providing structures such as the second water inlet pipe, the solenoid valve, the floating plate, the connecting rod, and the push plate, during use, when the solenoid valve is opened, the cooling water flows into the movable cavity through the second water inlet pipe. The floating plate always floats on the surface of the cooling water. As the cooling water continuously enters the movable cavity, the floating plate synchronously pushes the connecting rod and the push plate upward, and thus the cup inside the mold core can be lifted, facilitating demolding. The operation is simple and the demolding efficiency is improved; after demolding, a part of the cooling water in the water storage cavity is pumped out, and under the action of gravity, the cooling water in the inner cavity and the movable cavity can be recovered into the water storage cavity for the next shaping work. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1;

[0017] Figure 2 It is the front view of Embodiment 1;

[0018] Figure 3 It is a partial cross-sectional view of Embodiment 1;

[0019] Figure 4For Example 1 Figure 3 Schematic enlarged view of the structure at position A in

[0020] Figure 5 For Example 1 Figure 4 Schematic enlarged view of the structure at position B in

[0021] In the figure: 1, base; 2, column; 3, top plate; 4, hydraulic cylinder; 5, movable plate; 6, die core; 7, fixing plate; 8, die head; 9, die base; 10, water storage cavity; 11, installation cavity; 12, inner cavity; 13, installation block; 14, floating plate; 15, connecting rod; 16, push plate; 17, first water inlet pipe; 18, movable cavity; 19, second water inlet pipe; 20, solenoid valve. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Example 1

[0024] Please refer to Figures 1-5 As shown, a mold for a cup thermoforming blister machine includes a base 1, a column 2 is fixedly installed at the top end of the base 1, a top plate 3 is fixedly installed at the top end of the column 2, a hydraulic cylinder 4 is fixedly installed in the middle of the top plate 3, the telescopic end of the hydraulic cylinder 4 extends below the top plate 3 and a movable plate 5 is fixedly installed at the end, a die base 9 is fixedly installed at the bottom of the movable plate 5, a die head 8 is installed at the bottom of the die base 9, an installation cavity 11 is opened at the top end of the base 1, and a die core 6 is installed inside the installation cavity 11;

[0025] A cooling component is arranged below the installation cavity 11. The cooling component includes an installation block 13. The installation block 13 is fixedly installed at the bottom of the installation cavity 11. The installation block 13 is in the shape of a convex platform. The top end of the installation block 13 is inserted into a through hole opened in the center of the bottom of the die core 6. An inner cavity 12 is opened in the middle of the side wall of the die core 6. L-shaped first water inlet pipes 17 are symmetrically installed inside both sides of the installation block 13. The top ends of the first water inlet pipes 17 are horizontally communicated with the inner cavity 12 of the die core 6. The bottom ends of the first water inlet pipes 17 penetrate through the installation block 13 and extend into the water storage cavity 10 below;

[0026] During operation, the hydraulic cylinder 4 is used to push the movable plate 5 downward, which in turn drives the die base 9 and the die head 8 downward, causing the die head 8 to extend into the die core 6 to thermoform the cup. Then, by continuously injecting cooling water into the water storage cavity 10, the cooling water flows into the inner cavity 12 on the side wall of the die core 6 through the water inlet pipe, and thus can cool the cup inside the die core 6 to facilitate the rapid cooling and forming of the cup.

[0027] A connecting rod 15 is vertically and sealingly slidably installed at the center of the mounting block 13. The top end of the connecting rod 15 is fixedly connected to a push plate 16. An activity cavity 18 is formed inside the bottom of the mounting block 13. The bottom end of the connecting rod 15 is fixedly connected to a floating plate 14. The floating plate 14 is slidably arranged in the activity cavity 18. A second water inlet pipe 19 is fixedly installed at the bottom of the activity cavity 18. The second water inlet pipe 19 communicates the water storage cavity 10 and the activity cavity 18. A solenoid valve 20 is fixedly installed on the second water inlet pipe 19. During operation, the solenoid valve 20 is opened, and the cooling water flows into the activity cavity 18 through the second water inlet pipe 19. The floating plate 14 always floats on the surface of the cooling water. As the cooling water continuously enters the activity cavity 18, the floating plate 14 synchronously pushes the connecting rod 15 and the push plate 16 upward, and thus can lift the cup inside the die core 6 to facilitate demolding. The operation is simple and the demolding efficiency is improved. After demolding, a part of the cooling water inside the water storage cavity 10 is pumped out, and under the action of gravity, the cooling water in the inner cavity 12 and the activity cavity 18 can be recovered into the water storage cavity 10 for the next shaping work.

[0028] The floating plate 14 is a hollow plate. During operation, the gravity of the floating plate 14 can be reduced, so that the floating plate 14 can obtain greater buoyancy in the cooling water.

[0029] The first water inlet pipe 17 slidably penetrates through the floating plate 14. During operation, the up and down movement of the floating plate 14 will not be affected by the first water inlet pipe 17.

[0030] A fixed plate 7 is fixedly installed on the outer side of the top of the die core 6. The fixed plate 7 is fixedly connected to the base 1 by bolts. During operation, different die cores 6 can be installed and fixed to meet more usage requirements.

[0031] The top end of the die head 8 is fixedly connected to a threaded rod, and the threaded rod is threadedly connected to a threaded hole formed in the die base 9. During operation, the die head 8 matching the die core 6 can be replaced to meet more usage requirements.

[0032] Embodiment 2

[0033] Please refer to Figure 5 As shown, compared with Embodiment 1, as another implementation manner of the present utility model, the edge position of the movable plate 5 is slidably sleeved on the column 2. During operation, the movement direction of the movable plate 5 can be symmetrically limited to make the up and down movement of the movable plate 5 more stable.

[0034] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0035] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed.

Claims

1. A mold for a cup thermoforming blister machine, characterized in that: It includes a base (1), a column (2) is fixedly installed at the top end of the base (1), a top plate (3) is fixedly installed at the top end of the column (2), a hydraulic cylinder (4) is fixedly installed in the middle of the top plate (3), the telescopic end of the hydraulic cylinder (4) extends below the top plate (3) and a movable plate (5) is fixedly installed at the end, a die base (9) is fixedly installed at the bottom of the movable plate (5), a die head (8) is installed at the bottom of the die base (9), an installation cavity (11) is opened at the top end of the base (1), and a die core (6) is installed inside the installation cavity (11); A cooling component is arranged below the installation cavity (11). The cooling component includes an installation block (13). The installation block (13) is fixedly installed at the bottom of the installation cavity (11). The installation block (13) is in the shape of a boss. The top end of the installation block (13) is inserted into a through hole opened at the center of the bottom of the die core (6). An inner cavity (12) is opened in the middle of the side wall of the die core (6). L-shaped water inlet pipes one (17) are symmetrically installed inside both sides of the installation block (13). The top ends of the water inlet pipes one (17) are horizontally communicated with the inner cavity (12) of the die core (6). The bottom ends of the water inlet pipes one (17) penetrate through the installation block (13) and extend into a water storage cavity (10) below; 2. The mold for a cup thermoforming blister machine according to claim 1, characterized in that: A connecting rod (15) is hermetically and slidably installed vertically at the center of the installation block (13). A push plate (16) is fixedly connected to the top end of the connecting rod (15). A movable cavity (18) is opened inside the bottom of the installation block (13). A floating plate (14) is fixedly connected to the bottom end of the connecting rod (15). The floating plate (14) is slidably arranged in the movable cavity (18). A water inlet pipe two (19) is fixedly installed at the bottom of the movable cavity (18). The water inlet pipe two (19) communicates the water storage cavity (10) and the movable cavity (18). A solenoid valve (20) is fixedly installed on the water inlet pipe two (19).

3. The mold for a cup thermoforming blister machine according to claim 2, characterized in that: The floating plate (14) is a hollow plate.

4. The mold for a cup thermoforming blister machine according to claim 3, characterized in that: The water inlet pipe one (17) slidably penetrates through the floating plate (14).

5. The mold for a cup thermoforming blister machine according to claim 4, characterized in that: A fixing plate (7) is fixedly installed on the outer side of the top of the die core (6). The fixing plate (7) is fixedly connected to the base (1) by bolts.

6. The mold for a cup thermoforming blister machine according to claim 5, characterized in that: The top end of the die head (8) is fixedly connected with a threaded rod. The threaded rod is threadedly connected in a threaded hole opened on the die base (9).

7. The mold for a cup thermoforming blister machine according to claim 6, characterized in that: The edge position of the movable plate (5) is slidably sleeved on the column (2).

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