Mould for producing polyvinylidene fluoride plate

Abstract

The utility model discloses a mold for producing a polyvinylidene fluoride plate, and relates to the technical field of production molds. The mold comprises a supporting frame, a forming mechanism and a mold stripping mechanism are arranged on the supporting frame, the forming mechanism comprises a hydraulic cylinder fixedly connected to the inner top wall of the supporting frame, the output end of the hydraulic cylinder is fixedly connected with a hydraulic rod, the bottom end of the hydraulic rod is fixedly connected with a first heat insulation plate, and a second heat insulation plate is fixedly connected to the bottom end of the first heat insulation plate. The bottom face of the first heat insulation plate is fixedly connected with a hot pressing block, the top face of the heat insulation base is fixedly connected with a plurality of sealing sleeves, the inner walls of the sealing sleeves are slidably connected with first pistons, the top faces of the first pistons are fixedly connected with sliding rods, and the top ends of the sliding rods are fixedly connected with a connecting plate. And the hydraulic rod penetrates through the connecting plate in a sliding manner. By arranging the forming mechanism, the positioning precision of the whole mold system and the size precision of a formed part are ensured, so that the quality and the consistency of products are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of production molds, in particular to a mold for producing polyvinylidene fluoride plates. Background Art

[0002] PVDF board (white / dark gray): Chinese polyvinylidene fluoride board, English name Polyvinylidenefluoride, is made of PVDF resin through high temperature extrusion into board, is a fairly pure polymer, it does not contain additives such as UV stabilizers, heat stabilizers, softeners, lubricants or flame retardants, PDF board can be welded into troughs and equipment with PVDF welding rods, used to hold various chemical liquids, especially suitable for pure water systems and semiconductor industry in the transmission of pure chemical reagents, due to the chemical inertness of PVDF, it hardly reacts with any medium.

[0003] However, the existing molds cannot accurately position the upper and lower molds during extrusion, which makes it difficult to ensure high precision when the upper and lower molds are fitted together, and the fit between the molds cannot be perfect and seamless, which will have a certain impact on the quality of the product. Utility Model Content

[0004] The purpose of the utility model is to provide a mold for the production of polyvinylidene fluoride plates. By providing a molding mechanism, the positioning accuracy of the entire mold system and the dimensional accuracy of the molded parts are ensured, thereby improving the quality and consistency of the product and solving the problem that the position between the upper and lower molds cannot be accurately positioned, resulting in difficulty in ensuring high accuracy when the upper and lower molds are fitted together.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a mold for producing polyvinylidene fluoride plates, comprising a support frame, on which a molding mechanism and a demoulding mechanism are arranged, and the molding mechanism comprises a positioning component and a buffer component;

[0007] The positioning assembly includes a hydraulic cylinder fixedly connected to the inner top wall of the support frame, the output end of the hydraulic cylinder is fixedly connected to a hydraulic rod, the bottom end of the hydraulic rod is fixedly connected to a heat insulation board 1, the bottom surface of the heat insulation board 1 is fixedly connected to a hot pressing block, the inner bottom wall of the support frame is fixedly connected to a heat insulation base, the top surface of the heat insulation base is provided with a molding cavity, the inner wall of the molding cavity is slidably connected to the hot pressing block, the top surface of the heat insulation base is fixedly connected to a plurality of sealing sleeves, the inner walls of the plurality of sealing sleeves are slidably connected to a piston 1, the top surfaces of the plurality of pistons 1 are fixedly connected to sliding rods, the top ends of the plurality of sliding rods are slidably extended to the top surface of the sealing sleeves, the top ends of the plurality of sliding rods are fixedly connected to a connecting plate, and the hydraulic rod slides through the connecting plate.

[0008] Furthermore, the buffer assembly includes a stopper fixedly connected to the outer wall of the hydraulic rod, and a rubber gasket is fixedly connected to the bottom surface of the connecting plate.

[0009] Furthermore, the demoulding mechanism includes a connecting component and a connecting component, the connecting component includes a connecting cavity opened inside the insulation base, and a plurality of grooves are opened inside the support frame, and the interiors of the plurality of grooves are connected to the interior of the connecting cavity.

[0010] Furthermore, the inner walls of several of the grooves are slidably connected to piston 2, the top surfaces of several of the pistons 2 are fixedly connected to push rods, and the top ends of several of the push rods are slidably extended to the inner bottom wall of the molding cavity.

[0011] Furthermore, the top ends of the plurality of top rods are fixedly connected to a second heat insulation board, and the top surface of the second heat insulation board is provided with PVDF resin.

[0012] Furthermore, the inner wall of the connecting cavity is provided with a plurality of connecting ports, and the inner walls of the plurality of connecting ports are fixedly connected with conduits.

[0013] Furthermore, one end of the plurality of conduits away from the connection port extends to the interior of the sealing sleeve, and the interior of the connecting cavity, the interior of the plurality of sealing sleeves and the interior of the plurality of conduits are all filled with hydraulic oil.

[0014] The utility model has the following beneficial effects:

[0015] 1. By providing a molding mechanism, the sealing sleeve, the piston one and the sliding rod cooperate with each other, so that the pistons one can slide up and down on the inner wall of the sealing sleeve, so that the connecting plate can only move vertically up and down, and the hydraulic cylinder, the hydraulic rod and the connecting plate cooperate with each other, so that the hydraulic cylinder can drive the insulation board one and the hot pressing block to move up and down, so that the hot pressing block can accurately slide into the molding cavity inside the insulation base when moving downward, ensuring the positioning accuracy of the entire mold system and the dimensional accuracy of the molded parts, thereby improving the quality and consistency of the product.

[0016] 2. By providing a demolding mechanism, after the demolding mechanism performs hot-pressing molding on the PVDF resin in the molding cavity, the hydraulic cylinder drives the block to move upward for a distance and then presses against the rubber gasket, so that the hydraulic cylinder can drive the connecting plate to move upward, so that the connecting plate can drive multiple pistons 1 and the sliding rod to move upward, so that the piston 1 can squeeze the hydraulic oil in the sealing sleeve, so that the hydraulic oil flows, and the hydraulic oil in the sealing sleeve is squeezed into the connecting cavity through the conduit. At this time, the pressure of the hydraulic oil in the connecting cavity increases suddenly, and the pistons 2 in the multiple grooves are pushed to move upward synchronously. When the multiple pistons 2 and the multiple ejector rods move upward synchronously, they drive the insulation board 2 to move upward, so that the cooled and molded PVDF resin can be quickly ejected by the insulation board 2, which greatly improves the molding efficiency of the polyvinylidene fluoride board.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the connecting plate of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the heat-insulating base of the utility model;

[0022] Figure 4 It is a front cross-sectional structural schematic diagram of the heat-insulating base of the utility model;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the sleeve of the utility model;

[0024] Figure 6 This is a schematic diagram of the cross-sectional structure of the heat-insulating base of the utility model when viewed from above;

[0025] Figure 7 For this utility model Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Support frame; 2. Molding mechanism; 3. Demolding mechanism; 4. PVDF resin; 5. Hydraulic oil; 21. Hydraulic cylinder; 211. Hydraulic rod; 22. Insulation board 1; 23. Hot pressing block; 24. Insulation base; 241. Molding cavity; 25. Sleeve; 26. Piston 1; 27. Sliding rod; 28. Connecting plate; 29. ​​Stopper; 291. Rubber gasket; 31. Connecting cavity; 32. Groove; 33. Piston 2; 34. Push rod; 35. Insulation board 2; 36. Connecting port; 37. Conduit. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-7 As shown, the utility model is a mold for producing polyvinylidene fluoride plates, comprising a support frame 1, on which a molding mechanism 2 and a demoulding mechanism 3 are arranged, and the molding mechanism 2 comprises a positioning component and a buffer component;

[0030] The positioning assembly includes a hydraulic cylinder 21 fixedly connected to the inner top wall of the support frame 1, the output end of the hydraulic cylinder 21 is fixedly connected to a hydraulic rod 211, the bottom end of the hydraulic rod 211 is fixedly connected to a heat insulation board 22, the bottom surface of the heat insulation board 22 is fixedly connected to a hot pressing block 23, the inner bottom wall of the support frame 1 is fixedly connected to a heat insulation base 24, the top surface of the heat insulation base 24 is provided with a molding cavity 241, the inner wall of the molding cavity 241 is slidably connected to the hot pressing block 23, the top surface of the heat insulation base 24 is fixedly connected to a plurality of sealing sleeves 25, the inner walls of the plurality of sealing sleeves 25 are all slidably connected to pistons 26, and the tops of the plurality of pistons 26 are fixedly connected to the inner walls of the plurality of sealing sleeves 25. The surfaces are all fixedly connected to sliding rods 27, the top ends of several sliding rods 27 are slidably extended to the top surface of the sealing sleeve 25, the top ends of several sliding rods 27 are fixedly connected to connecting plates 28, the hydraulic rod 211 slides through the connecting plate 28, the buffer assembly includes a stopper 29 fixedly connected to the outer wall of the hydraulic rod 211, and the bottom surface of the connecting plate 28 is fixedly connected to a rubber gasket 291. By providing a molding mechanism 2, the hot pressing block 23 can accurately slide into the molding cavity 241 inside the insulating base 24 when moving downward, thereby ensuring the positioning accuracy of the entire mold system and the dimensional accuracy of the molded part, thereby improving the quality and consistency of the product.

[0031] The ejection mechanism 3 includes a connecting component and a connecting component. The connecting component includes a connecting cavity 31 opened inside the heat-insulating base 24. A plurality of grooves 32 are opened inside the support frame 1. The interiors of the plurality of grooves 32 are communicated with the interiors of the connecting cavity 31. The inner walls of the plurality of grooves 32 are slidably connected with pistons 2 33. The top surfaces of the plurality of pistons 2 33 are fixedly connected with push rods 34. The top ends of the plurality of push rods 34 are slidably extended to the inner bottom wall of the molding cavity 241. The top ends of the plurality of push rods 34 are fixedly connected with heat-insulating plates 2 35. The top ends of the heat-insulating plates 2 35 are fixedly connected with the top ends of the push rods 34. A PVDF resin 4 is arranged on the surface, a plurality of connecting ports 36 are opened on the inner wall of the connecting cavity 31, and the inner walls of the plurality of connecting ports 36 are fixedly connected with conduits 37, and the ends of the plurality of conduits 37 away from the connecting ports 36 extend to the inside of the sealing sleeve 25, and the inside of the connecting cavity 31, the inside of the plurality of sealing sleeves 25 and the inside of the plurality of conduits 37 are all filled with hydraulic oil 5. By providing a demolding mechanism 3, the PVDF resin 4 after cooling and molding can be quickly ejected by the insulation board 2 35, thereby greatly improving the efficiency of the molding of the polyvinylidene fluoride board.

[0032] A specific application of this embodiment is: by providing a molding mechanism 2, the sealing sleeve 25, the piston 26 and the sliding rod 27 cooperate with each other, so that the pistons 26 can only slide up and down on the inner wall of the sealing sleeve 25, so that the connecting plate 28 can only move vertically up and down, and the hydraulic cylinder 21, the hydraulic rod 211 and the connecting plate 28 cooperate with each other, so that the hydraulic cylinder 21 can drive the heat insulation plate 22 and the hot pressing block 23 to move up and down, so that the hot pressing block 23 can accurately slide into the molding cavity 241 inside the heat insulation base 24 when moving downward, ensuring the positioning accuracy of the entire mold system and the dimensional accuracy of the molded part, thereby improving the quality and consistency of the product, and when the hydraulic cylinder 21 drives the hot pressing block 23 to move upward, the stopper 29 and the rubber gasket 291 are close to each other, so that the stopper 29 can resist the rubber gasket 291 after moving upward a certain distance to drive the connecting plate 28 to move upward, and the rubber gasket 291 can alleviate the impact force during contact;

[0033] By providing a demolding mechanism 3, after the demolding mechanism 3 performs hot-pressing molding on the PVDF resin 4 in the molding cavity 241, the hydraulic cylinder 21 drives the block 29 to move upward for a distance and then presses against the rubber gasket 291, so that the hydraulic cylinder 21 can drive the connecting plate 28 to move upward, so that the connecting plate 28 can drive the multiple pistons 1 26 and the slide rod 27 to move upward, so that the piston 1 26 can squeeze the hydraulic oil 5 in the sealing sleeve 25, so that the hydraulic oil 5 flows, and the hydraulic oil 5 in the sealing sleeve 25 is squeezed into the connecting cavity 31 through the conduit 37. At this time, the pressure of the hydraulic oil 5 in the connecting cavity 31 increases suddenly, and the pistons 2 33 in the multiple grooves 32 are pushed to move upward synchronously. When the multiple pistons 2 33 and the multiple ejector rods 34 move upward synchronously, they drive the heat insulation board 2 35 to move upward, so that the PVDF resin 4 after cooling and molding can be quickly ejected by the heat insulation board 2 35, which greatly improves the efficiency of polyvinylidene fluoride board molding.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A mold for producing polyvinylidene fluoride plates, comprising a support frame (1), characterized in that: The support frame (1) is provided with a molding mechanism (2) and a demoulding mechanism (3), and the molding mechanism (2) comprises a positioning component and a buffer component; The positioning assembly comprises a hydraulic cylinder (21) fixedly connected to the inner top wall of the support frame (1); the output end of the hydraulic cylinder (21) is fixedly connected to a hydraulic rod (211); the bottom end of the hydraulic rod (211) is fixedly connected to a heat insulation board (22); the bottom surface of the heat insulation board (22) is fixedly connected to a hot pressing block (23); the inner bottom wall of the support frame (1) is fixedly connected to a heat insulation base (24); the top surface of the heat insulation base (24) is provided with a molding cavity (241); the inner surface of the molding cavity (241) is provided with a mold cavity (241); The wall is slidably connected to the hot pressing block (23), the top surface of the heat insulating base (24) is fixedly connected to a plurality of sealing sleeves (25), the inner walls of a plurality of the sealing sleeves (25) are slidably connected to pistons 1 (26), the top surfaces of a plurality of the pistons 1 (26) are fixedly connected to sliding rods (27), the top ends of a plurality of the sliding rods (27) are slidably extended to the top surface of the sealing sleeve (25), the top ends of a plurality of the sliding rods (27) are fixedly connected to connecting plates (28), and the hydraulic rod (211) slidably penetrates the connecting plates (28).

2. A mold for producing polyvinylidene fluoride plates according to claim 1, characterized in that: The buffer assembly comprises a stopper (29) fixedly connected to the outer wall of the hydraulic rod (211), and a rubber gasket (291) is fixedly connected to the bottom surface of the connecting plate (28).

3. A mold for producing polyvinylidene fluoride plates according to claim 2, characterized in that: The demoulding mechanism (3) comprises a communication component and a connection component, the communication component comprises a connection cavity (31) opened inside the heat-insulating base (24), a plurality of grooves (32) are opened inside the support frame (1), and the interiors of the plurality of grooves (32) are all in communication with the interior of the connection cavity (31).

4. A mold for producing a polyvinylidene fluoride plate according to claim 3, characterized in that: The inner walls of several grooves (32) are slidably connected to piston 2 (33), the top surfaces of several piston 2 (33) are fixedly connected to push rods (34), and the top ends of several push rods (34) are slidably extended to the inner bottom wall of the molding cavity (241).

5. A mold for producing polyvinylidene fluoride plates according to claim 4, characterized in that: The top ends of the plurality of push rods (34) are fixedly connected to a second heat insulation board (35), and the top surface of the second heat insulation board (35) is provided with PVDF resin (4).

6. A mold for producing polyvinylidene fluoride plates according to claim 5, characterized in that: The inner wall of the connection cavity (31) is provided with a plurality of connection openings (36), and the inner walls of the plurality of connection openings (36) are all fixedly connected with conduits (37).

7. A mold for producing polyvinylidene fluoride plates according to claim 6, characterized in that: The ends of the plurality of conduits (37) away from the connection port (36) extend to the interior of the sealing sleeve (25), and the interior of the connection cavity (31), the interior of the plurality of sealing sleeves (25), and the interior of the plurality of conduits (37) are all filled with hydraulic oil (5).

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