A precision plastic mold with precise temperature control

Abstract

The present invention discloses a precision plastic mold with precise temperature control, mainly including a top plate, guide rods, an upper shell, a lower mold, a lower shell, a bottom plate, an upper mold, a discharging device and a sliding plate. Symmetrically arranged guide rods are fixedly installed at the edge of the top end of the bottom plate. Wear-resistant sleeves arranged up and down are sleeved outside the guide rods, and guide sleeves are fixedly installed outside the wear-resistant sleeves. A lower shell is fixedly installed between the lower guide sleeves, and the side wall of the bottom end of the lower shell is fixedly connected to the bottom plate. The present invention is reasonable in structural design. The mold adopts a combined and spliced water channel, which is convenient for later maintenance and cleaning. At the same time, the feeding mechanism of the injection port is reasonably arranged. The top end of the plug is completely fitted with the opening, without indentation, and there will be no redundant protruding surplus material outside the finished product at the discharging port position, ensuring the later demoulding and the quality of the finished product. The temperature of the internal water channel is detected and fed back in real time to avoid inaccurate temperature control of the mold.

Description

Technical Field

[0001] The present invention relates to a mold, specifically a precision plastic mold with precise temperature control. Background Art

[0002] A mold is various molds and tools used in industrial production to obtain required products by injection molding, blow molding, extrusion, die casting, forging, smelting, stamping, etc. In short, a mold is a tool for making formed articles. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the outer shape of the article by changing the physical state of the formed material.

[0003] The temperature control of existing molds is not good. When cooling and shaping, external force cooling and heat dissipation are required. Generally, a water channel is used for heat exchange of the coolant for cooling. However, the processing position of the water channel is inside, which is inconvenient for processing and inconvenient for later maintenance and cleaning. It is easy to be blocked, affecting later cooling. And when the temperature changes too violently, it will shorten the life of the mold or even cause cracking and water leakage, affecting normal use. Temperature control and heat reduction are required. Moreover, the feeding mechanism at the injection position is not well set, the feeding speed is slow, it is inconvenient to replace, and the discharge port is sunken, which will cause redundant protruding materials on the outside of the finished product at the discharge port position, affecting later demolding and the quality of the finished product. Summary of the Invention

[0004] The purpose of the present invention is to provide a precision plastic mold with precise temperature control to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A precision plastic mold with precise temperature control mainly includes a top plate, guide rods, an upper shell, a lower mold, a lower shell, a bottom plate, an upper mold, a discharger, and a slide plate. Symmetrically arranged guide rods are fixedly installed at the edge of the top of the bottom plate. Wear-resistant sleeves are sleeved outside the guide rods and arranged up and down. Guide sleeves are fixedly installed outside the wear-resistant sleeves. A lower shell is fixedly installed between the lower guide sleeves. The bottom side wall of the lower shell is fixedly connected to the bottom plate. Equally spaced lower sealing blocks are fixedly installed in the lower part inside the lower shell. A lower connecting plate is embedded and installed in the middle of the top of the lower shell. Equally spaced lower heat-conducting blocks are fixedly installed on the top of the bottom plate. Inner grooves are opened on the left and right side walls of the lower heat-conducting blocks and the lower sealing blocks. A sewer is formed by surrounding between the inner wall of the lower shell and the side walls of the lower heat-conducting blocks and the lower sealing blocks. Symmetrically arranged lower bolt seats are fixedly installed at the edge of the top of the lower shell. The lower mold is sleeved and installed on the upper part of the lower bolt seat. The lower mold is fixedly connected to the lower bolt seat by bolts. A discharger is inserted and installed through the middle of the lower mold. A feeding pipe is screwed and installed on the front side of the discharger. A round hole matching the feeding pipe is opened on the inner side of the front part of the lower mold. Hoop clamps are fixedly installed on the left and right side walls of the lower shell. The hoop clamps are fixedly connected to the guide sleeves;

[0007] An upper shell is fixedly installed between the upper guide sleeves located at the upper part. At the upper part inside the upper shell, equally spaced upper sealing blocks are fixedly installed. In the middle of the bottom end of the upper shell, an upper connecting plate is embedded and installed. At the top end of the upper shell, a sliding plate is fixedly installed. At the bottom end of the sliding plate, equally spaced upper heat-conducting blocks are fixedly installed. V-shaped grooves are formed on the left and right side walls of the upper heat-conducting blocks and the upper sealing blocks. An upper water channel is formed by enclosing between the inner wall of the upper shell and the side walls of the upper heat-conducting blocks and the upper sealing blocks. At the edge of the bottom end of the upper shell, symmetrically arranged upper bolt seats are fixedly installed. An upper mold is sleeved and installed below the upper bolt seats. The upper mold is fixedly connected to the upper bolt seats through bolts. At the edge of the bottom end of the upper mold, a sealing insertion frame is fixedly installed. A slot matching the sealing insertion frame is formed on the side wall of the top end of the lower mold. Clamps are fixedly installed on the left and right side walls of the upper shell. The clamps are fixedly connected to the guide sleeves. At the top end of the guide rod, a guide rod seat is fixedly installed. At the top end of the guide rod seat, a top plate is fixedly installed. A cylinder is fixedly installed at the bottom end of the top plate. A temperature control head is embedded and fixedly installed on the rear side walls of the upper shell and the lower shell.

[0008] As a further scheme of the present invention: The discharging device mainly includes a pneumatic rotary device, a plug, a threaded rod, a material-passing annular channel, an embedded head, a threaded sleeve, a sealing snap ring, a sealing sleeve, an internal threaded pipe and a housing. A threaded sleeve is fixedly installed at the lower part inside the housing. The threaded sleeve is fixedly connected to the lower mold through bolts. A pneumatic rotary device is fixedly installed at the lower part inside the housing. The top end of the rotating shaft of the pneumatic rotary device is fixedly installed with a threaded rod through a coupling. A plug is slidably installed at the upper part inside the housing. An internal threaded pipe is fixedly installed inside the plug. The internal threaded pipe is screwed and assembled with the threaded rod. A sealing snap ring is fixedly installed at the lower part outside the plug. Symmetric left and right chutes matching the sealing snap ring are formed on the inner wall of the housing. A material-passing annular channel is fixedly installed at the upper part inside the housing. An embedded head corresponding to the opening of the material-passing annular channel is embedded and fixedly installed on the side wall of the plug. A sealing sleeve matching the plug is fixedly installed at the upper part inside the housing.

[0009] As a further scheme of the present invention: Equally spaced embedding strips are fixedly installed on the side wall of the bottom end of the upper connecting plate. Grooves matching the embedding strips are formed on the top end of the upper mold.

[0010] As a further scheme of the present invention: A reinforcing frame is fixedly installed at the top end of the sliding plate. The bottom end of the cylinder is fixedly connected to the reinforcing frame.

[0011] As a further scheme of the present invention: It further includes a water supply head. The water supply head communicates with the upper water channel inside the upper shell. The water supply head is fixedly conducted with an external water supply device through a pipeline.

[0012] As a further scheme of the present invention: Equally spaced lower heat-conducting plates are fixedly installed on the top end of the lower connecting plate. Grooves matching the lower heat-conducting plates are formed on the bottom end of the lower mold.

[0013] As a further solution of the present invention: the air pump and the pneumatic rotator are connected to an external air supply device and an external pneumatic control device through an air pipe, and the temperature control head is electrically connected to an external power supply and an external control device through a wire harness.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The present invention is reasonably designed in structure. The mold adopts a combined and spliced water channel, which is convenient for later maintenance and cleaning. At the same time, the feeding mechanism of the injection port is reasonably arranged. The top of the plug is completely fitted with the opening without sinking, and there will be no redundant protruding surplus material on the outer side of the finished product at the discharge port, ensuring later demoulding and the quality of the finished product. The temperature of the internal water channel is detected and fed back in real time to avoid inaccurate control of the mold temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of a precision plastic mold for precise temperature control.

[0017] Figure 2 It is a schematic structural diagram among the middle slide plate, the upper shell, the upper mold and the guide rod of a precision plastic mold for precise temperature control.

[0018] Figure 3 It is a schematic structural diagram among the bottom plate, the lower shell, the lower mold and the discharger of a precision plastic mold for precise temperature control.

[0019] Figure 4 It is a schematic structural diagram between the discharger and the lower mold of a precision plastic mold for precise temperature control.

[0020] Figure 5 It is a top view schematic diagram among the guide rod, the guide sleeve, the upper shell, the upper sealing block, the upper heat conducting block and the upper water channel of a precision plastic mold for precise temperature control.

[0021] Figure 6 It is a bottom view schematic diagram of the sealing plug-in frame of a precision plastic mold for precise temperature control.

[0022] Figure 7 It is a top view schematic diagram among the feeding pipe, the lower mold and the discharger of a precision plastic mold for precise temperature control.

[0023] Figure 8 It is a sectional view schematic diagram among the outer shell, the material passing annular channel, the plug and the embedded head of a precision plastic mold for precise temperature control.

[0024] In the figure: top plate 1, guide rod 2, upper shell 3, hoop 4, wear-resistant sleeve 5, feeding pipe 6, temperature control head 7, lower die 8, lower shell 9, bottom plate 10, pneumatic rotator 11, upper die 14, guide sleeve 15, water supply head 16, slide plate 17, cylinder 18, guide rod seat 19, upper water channel 20, upper heat conduction block 21, upper sealing block 22, embedding strip 23, upper bolt seat 24, sealing plug holder 25, upper connecting plate 26, lower heat conduction plate 27, plug 28, lower bolt seat 29, lower connecting plate 30, lower water channel 31, lower heat conduction block 32, lower sealing block 33, threaded rod 34, material passing annular channel 35, embedded head 36, threaded sleeve 37, sealing snap ring 38, sealing sleeve 39, internally threaded pipe 40, outer shell 41, sealing ring 42. Detailed implementation manner

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0026] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0027] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0028] Please refer to Figures 1 to 8, in the embodiment of the present invention, a precision plastic mold with precise temperature control mainly includes a top plate 1, guide rods 2, an upper shell 3, a lower mold 8, a lower shell 9, a bottom plate 10, an upper mold 14, a discharging device, and a slide plate 17. Symmetrically arranged guide rods 2 are fixedly installed at the edge of the top end of the bottom plate 10. Wear-resistant sleeves 5 are sleeved on the outer sides of the guide rods 2 and are arranged vertically. Guide sleeves 15 are fixedly installed on the outer sides of the wear-resistant sleeves 5. A lower shell 9 is fixedly installed between the lower guide sleeves 15. The bottom side wall of the lower shell 9 is fixedly connected to the bottom plate 10. A plurality of equally spaced lower sealing blocks 33 are fixedly installed in the lower part of the inner side of the lower shell 9. A lower connecting plate 30 is embedded and installed in the middle of the top end of the lower shell 9. A plurality of equally spaced lower heat-conducting blocks 32 are fixedly installed at the top end of the bottom plate 10. Inner grooves are formed on the left and right side walls of the lower heat-conducting blocks 32 and the lower sealing blocks 33. A sewer 31 is formed by enclosing the inner wall of the lower shell 9 and the side walls of the lower heat-conducting blocks 32 and the lower sealing blocks 33. Symmetrically arranged lower bolt seats 29 are fixedly installed at the edge of the top end of the lower shell 9. A lower mold 8 is sleeved on the upper part of the lower bolt seats 29. The lower mold 8 is fixedly connected to the lower bolt seats 29 by bolts. A discharging device is inserted through the middle of the lower mold 8. A feeding pipe 6 is screwed and installed on the front side of the discharging device. A round hole matching the feeding pipe 6 is formed in the inner side of the front part of the lower mold 8. Clamps 4 are fixedly installed on the left and right side walls of the lower shell 9. The clamps 4 are fixedly connected to the guide sleeves 15;

[0029] An upper shell 3 is fixedly installed between the upper guide sleeves 15. A plurality of equally spaced upper sealing blocks 22 are fixedly installed in the upper part of the inner side of the upper shell 3. An upper connecting plate 26 is embedded and installed in the middle of the bottom end of the upper shell 3. A slide plate 17 is fixedly installed at the top end of the upper shell 3. A plurality of equally spaced upper heat-conducting blocks 21 are fixedly installed at the bottom end of the slide plate 17. V-shaped grooves are formed on the left and right side walls of the upper heat-conducting blocks 21 and the upper sealing blocks 22. An upper water channel 20 is formed by enclosing the inner wall of the upper shell 3 and the side walls of the upper heat-conducting blocks 21 and the upper sealing blocks 22. Symmetrically arranged upper bolt seats 24 are fixedly installed at the edge of the bottom end of the upper shell 3. An upper mold 14 is sleeved on the lower part of the upper bolt seats 24. The upper mold 14 is fixedly connected to the upper bolt seats 24 by bolts. A sealing plug holder 25 is fixedly installed at the edge of the bottom end of the upper mold 14. A slot matching the sealing plug holder 25 is formed in the side wall of the top end of the lower mold 8. Clamps 4 are fixedly installed on the left and right side walls of the upper shell 3. The clamps 4 are fixedly connected to the guide sleeves 15. A guide rod seat 19 is fixedly installed at the top end of the guide rod 2. A top plate 1 is fixedly installed at the top end of the guide rod seat 19. A cylinder 18 is fixedly installed at the bottom end of the top plate 1. A temperature control head 7 is embedded and fixedly installed on the rear side walls of the upper shell 3 and the lower shell 9.

[0030] The discharger mainly includes a pneumatic rotator 11, a plug 28, a threaded rod 34, a material passing annular channel 35, an embedded head 36, a threaded sleeve 37, a sealing snap ring 38, a sealing sleeve 39, an internally threaded pipe 40 and a housing 41. A threaded sleeve 37 is fixedly installed at the lower part inside the housing 41, and the threaded sleeve 37 is fixedly connected to the lower die 8 through bolts. A pneumatic rotator 11 is fixedly installed at the lower part inside the housing 41. The top end of the rotating shaft of the pneumatic rotator 11 is fixedly installed with a threaded rod 34 through a coupling. A plug 28 is slidably installed at the upper part inside the housing 41. An internally threaded pipe 40 is fixedly installed inside the plug 28, and the internally threaded pipe 40 is rotationally assembled with the threaded rod 34. A sealing snap ring 38 is fixedly installed at the lower part outside the plug 28. Symmetric left and right chutes matched with the sealing snap ring 38 are formed on the inner wall of the housing 41. A material passing annular channel 35 is fixedly installed at the upper part inside the housing 41. An embedded head 36 corresponding to the opening of the material passing annular channel 35 is embedded and fixedly installed on the side wall of the plug 28. A sealing sleeve 39 matched with the plug 28 is fixedly installed at the upper part inside the housing 41.

[0031] An equidistantly arranged embedding strip 23 is fixedly installed on the side wall at the bottom end of the upper connecting plate 26, and a groove matched with the embedding strip 23 is formed at the top end of the upper die 14.

[0032] A reinforcing frame is fixedly installed at the top end of the sliding plate 17, and the bottom end of the air cylinder 18 is fixedly connected to the reinforcing frame.

[0033] It further includes a water supply head 16. The water supply head 16 is communicated with the upper water channel 20 inside the upper shell 3, and the water supply head 16 is fixedly conducted with an external water supply device through a pipeline.

[0034] An equidistantly arranged lower heat conducting plate 27 is fixedly installed at the top end of the lower connecting plate 30, and a groove matched with the lower heat conducting plate 27 is formed at the bottom end of the lower die 8.

[0035] The air pump 18 and the pneumatic rotator 11 are conducted with an external air supply device and an external pneumatic control device through air pipes, and the temperature control head 7 is electrically connected with an external power supply and an external control device through a wire harness.

[0036] A sealing ring 42 is arranged at the opening of the material passing annular channel 35 to enhance the sealing performance when blocking the material passing annular channel 35.

[0037] The working principle of the present invention is:

[0038] The present invention relates to a precision plastic mold with precise temperature control. When in use, the temperature of the internal water channel of this mold is detected and fed back in real time through the temperature control head 7. When the cooling speed is too fast, that is, when the temperature difference of the mold is too large per unit time, the external control device controls the water pump to stop working through the temperature signal collected by the temperature control head 7, reduces the cooling speed, and avoids damage to the mold due to excessive temperature change of the mold;

[0039] When performing cooling and shaping, external force cooling and heat dissipation are required. This mold adopts a combined and spliced water channel, which is located on the surface and is more convenient for processing. During later maintenance, separating the upper shell from the slide plate and the lower shell from the bottom plate allows the direct separation of the sealing block and the heat conducting block, exposing the water channel directly, facilitating later maintenance and cleaning;

[0040] At the same time, the feeding mechanism of this injection port is reasonably arranged. The plug is driven to slide down by the threaded rod for feeding, and the limiting sliding is carried out through the sealing collar 38. The four-hole confluence feeding method is adopted, with a fast feeding speed. After the feeding is completed, the threaded rod rotates, and the pneumatic rotary device 11 is driven by an external pneumatic control device to drive the rotation and reset. The top of the plug fits perfectly with the opening of the outer shell 41, without sinking, and will not cause redundant protruding materials outside the finished product at the discharge port position, ensuring later demolding and the quality of the finished product.

[0041] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0042] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A precision plastic mold with precise temperature control, mainly including a top plate (1), a guide rod (2), an upper shell (3), a lower mold (8), a lower shell (9), a bottom plate (10), an upper mold (14), a discharging device and a slide plate (17), characterized in that, At the top edge of the bottom plate (10), symmetrically arranged guide rods (2) are fixedly installed. Wear-resistant sleeves (5) are sleeved on the outer sides of the guide rods (2) and are arranged up and down. A guide sleeve (15) is fixedly installed on the outer side of the wear-resistant sleeve (5). A lower shell (9) is fixedly installed between the lower guide sleeves (15). The bottom side wall of the lower shell (9) is fixedly connected to the bottom plate (10). At the lower part inside the lower shell (9), equally spaced lower sealing blocks (33) are fixedly installed. In the middle of the top of the lower shell (9), a lower connecting plate (30) is embedded and installed. Equally spaced lower heat-conducting blocks (32) are fixedly installed on the top of the bottom plate (10). Inner grooves are formed on the left and right side walls of the lower heat-conducting block (32) and the lower sealing block (33). A sewer (31) is formed by enclosing between the inner wall of the lower shell (9) and the side walls of the lower heat-conducting block (32) and the lower sealing block (33). At the top edge of the lower shell (9), symmetrically arranged lower bolt seats (29) are fixedly installed. A lower die (8) is sleeved on the upper part of the lower bolt seat (29). The lower die (8) is fixedly connected to the lower bolt seat (29) by bolts. A discharging device is inserted through the middle of the lower die (8). A feeding pipe (6) is screwed and installed on the front side of the discharging device. A round hole matching the feeding pipe (6) is formed on the inner side of the front part of the lower die (8). Clamps (4) are fixedly installed on the left and right side walls of the lower shell (9). The clamps (4) are fixedly connected to the guide sleeve (15); An upper shell (3) is fixedly installed between the upper guide sleeves (15). Equally spaced upper sealing blocks (22) are fixedly installed at the upper part inside the upper shell (3). In the middle of the bottom of the upper shell (3), an upper connecting plate (26) is embedded and installed. A sliding plate (17) is fixedly installed on the top of the upper shell (3). Equally spaced upper heat-conducting blocks (21) are fixedly installed at the bottom of the sliding plate (17). V-shaped grooves are formed on the left and right side walls of the upper heat-conducting block (21) and the upper sealing block (22). An upper water channel (20) is formed by enclosing between the inner wall of the upper shell (3) and the side walls of the upper heat-conducting block (21) and the upper sealing block (22). At the bottom edge of the upper shell (3), symmetrically arranged upper bolt seats (24) are fixedly installed. An upper die (14) is sleeved on the lower part of the upper bolt seat (24). The upper die (14) is fixedly connected to the upper bolt seat (24) by bolts. A sealing plug holder (25) is fixedly installed at the bottom edge of the upper die (14). A slot matching the sealing plug holder (25) is formed on the top side wall of the lower die (8). Clamps (4) are fixedly installed on the left and right side walls of the upper shell (3). The clamps (4) are fixedly connected to the guide sleeve (15). A guide rod seat (19) is fixedly installed at the top of the guide rod (2). A top plate (1) is fixedly installed at the top of the guide rod seat (19). A cylinder (18) is fixedly installed at the bottom of the top plate (1). A temperature control head (7) is embedded and fixedly installed on the rear side walls of the upper shell (3) and the lower shell (9); The discharger mainly includes a pneumatic rotator (11), a plug (28), a threaded rod (34), a material passing annular channel (35), an embedded head (36), a threaded sleeve (37), a sealing snap ring (38), a sealing sleeve (39), an internally threaded pipe (40) and a housing (41). A threaded sleeve (37) is fixedly installed at the lower part inside the housing (41), and the threaded sleeve (37) is fixedly connected to the lower die (8) by bolts. A pneumatic rotator (11) is fixedly installed at the lower part inside the housing (41), and the top end of the rotating shaft of the pneumatic rotator (11) is fixedly installed with a threaded rod (34) through a coupling. A plug (28) is slidably installed at the upper part inside the housing (41), an internally threaded pipe (40) is fixedly installed inside the plug (28), and the internally threaded pipe (40) is screwed and assembled with the threaded rod (34). A sealing snap ring (38) is fixedly installed at the lower part outside the plug (28). Symmetrically arranged chutes for cooperating with the sealing snap ring (38) are formed in the inner wall of the housing (41). A material passing annular channel (35) is fixedly installed at the upper part inside the housing (41). An embedded head (36) corresponding to the opening of the material passing annular channel (35) is fixedly installed by embedding on the side wall of the plug (28). A sealing sleeve (39) cooperating with the plug (28) is fixedly installed at the upper part inside the housing (41); Equidistantly arranged embedding strips (23) are fixedly installed on the side wall at the bottom end of the upper connecting plate (26), and grooves cooperating with the embedding strips (23) are formed at the top end of the upper die (14); A reinforcing frame is fixedly installed at the top end of the sliding plate (17), and the bottom end of the air cylinder (18) is fixedly connected to the reinforcing frame; It further includes a water supply head (16), the water supply head (16) communicates with the upper water channel (20) inside the upper housing (3), and the water supply head (16) is fixedly conducted with an external water supply device through a pipeline.

2. The precision plastic mold with precise temperature control according to claim 1, characterized in that, Equidistantly arranged lower heat conducting plates (27) are fixedly installed at the top end of the lower connecting plate (30), and grooves cooperating with the lower heat conducting plates (27) are formed at the bottom end of the lower die (8).

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