Thermostat shell integrated forming die

Abstract

The utility model discloses an integral forming die for a thermostat shell. The integral forming die comprises a lower die holder and a mounting mechanism, a clamping groove is formed in the upper surface of the lower die base, and an upper die base is arranged in the clamping groove; the mounting mechanism comprises a connecting block, a bayonet, clamping plates, tension springs, U-shaped seats and four sliding blocks, the four sliding blocks vertically slide on the front inner wall, the rear inner wall, the left inner wall and the right inner wall of the clamping groove respectively, the U-shaped seats are fixedly connected to the upper surfaces of the sliding blocks, the clamping plates are rotatably connected to the interiors of the U-shaped seats, the tension springs are fixedly connected between every two adjacent clamping plates, and the clamping grooves are formed in the clamping grooves. The connecting blocks are fixedly connected to the lower surface of the upper die base, bayonets are formed in the connecting blocks, the integral forming die for the thermostat shell can ensure accurate butt joint when the integral forming die for the thermostat shell is closed, the closing gap is reduced, plastic melt can flow uniformly in the injection process, and the production efficiency is improved. And the forming precision and the product quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermostat processing, in particular to an integrally formed mold for a thermostat housing. Background Technique

[0002] As a valve for controlling the flow path of the coolant, the design and function of the thermostat are very crucial. In order to ensure good performance and dimensional accuracy of the thermostat housing during the processing, an integrally formed mold is often used for production. It not only ensures the structural strength and dimensional accuracy of the product, but also optimizes the production efficiency and product quality.

[0003] For the traditional integrally formed mold for the thermostat housing, first, the alignment of the upper mold base and the lower mold base is ensured. After the alignment is completed, the operator will use bolts or positioning pins to tightly fix the upper mold base and the lower mold base together. When the mold is closed and fixed, the injection molding machine starts to inject the plastic melt into the mold cavity.

[0004] The traditional integrally formed mold for the thermostat housing has the following problems: bolts and positioning pins rely on manual installation and adjustment, and it is difficult to ensure the absolute alignment accuracy when the mold is closed. Even a tiny installation error may cause uneven gaps when the mold is closed, which will affect the flow of the plastic melt during the injection molding process, resulting in product dimensional deviation and surface defects. For this reason, we propose an integrally formed mold for a thermostat housing. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide an integrally formed mold for a thermostat housing, which can ensure the precise docking of the integrally formed mold for the thermostat housing when it is closed, reduce the closing gap, make the plastic melt flow evenly during the injection process, and can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: an integrally formed mold for a thermostat housing, including a lower mold base and an installation mechanism;

[0007] Lower mold base: a clamping groove is formed on its upper surface, and an upper mold base is arranged inside the clamping groove;

[0008] Installation mechanism: It includes a connecting block, a bayonet, a clamping plate, a tension spring, a U-shaped seat and a slider. The number of sliders is four. The four sliders slide vertically on the front, back, left and right inner walls of the card slot respectively. U-shaped seats are fixedly connected to the upper surfaces of the sliders. Clamping plates are rotatably connected inside the U-shaped seats. Tension springs are fixedly connected between every two adjacent clamping plates. The connecting block is fixedly connected to the lower surface of the upper mold base. Bayonets are opened inside the connecting blocks. The bayonets are cooperatively installed with the vertically adjacent clamping plates, which can ensure the precise docking of the thermostat housing integral molding die when it is closed, reduce the closing gap, make the plastic melt flow evenly during the injection process, avoid product size deviation caused by uneven gaps, and improve the molding accuracy and product quality.

[0009] Furthermore, it also includes an injection port. The injection port is opened in the middle of the upper surface of the upper mold base and is communicated with the cavity of the upper mold base, which is convenient for injection molding.

[0010] Furthermore, chamfer structures are provided at the edges of the bayonets, which provides convenience for separating the lower mold base and the upper mold base.

[0011] Furthermore, the installation mechanism also includes sliding grooves. The number of sliding grooves is eight. The eight sliding grooves are all opened on the inner wall of the card slot. The inner walls of every two adjacent sliding grooves are slidably connected to the adjacent ends of a slider to achieve sliding limit.

[0012] Furthermore, the installation mechanism also includes inclined blocks. The number of inclined blocks is eight. The eight inclined blocks are all fixedly connected to the front, back, left and right inner walls of the card slot. The inclined surfaces of the inclined blocks are cooperatively installed with the outer sides of the adjacent clamping plates to improve the fixing of the clamping plates and avoid loosening or instability.

[0013] Furthermore, the installation mechanism also includes a lead screw, an internally threaded seat and a rotating hole. The rotating hole is opened on the bottom wall of the card slot. A lead screw is rotatably connected inside the rotating hole. The upper end of the lead screw is rotatably connected to the lower surface of the vertically adjacent slider. The internally threaded seats are all fixedly connected to the lower surface of the lower mold base. The internally threaded seats are in one-to-one correspondence with the rotating holes in the up and down positions. The inside of the internally threaded seat is threadedly connected to the lower end of the lead screw to accurately push the clamping plate downward, thereby realizing the uniform closing of the die.

[0014] Furthermore, the installation mechanism also includes a knob. The knobs are all fixedly connected to the bottom ends of the lead screws to drive the installation mechanism.

[0015] Compared with the prior art, the beneficial effects of the present utility model are: This thermostat housing integral molding die has the following advantages:

[0016] During the operation of the integrated forming mold for the thermostat housing, first insert the connecting block into the card slot to ensure stable positioning. Then, drive the lead screw to move by rotating the knob to precisely adjust the closing of the mold. Next, the slider pushes the clamping plate to contact the inclined surface of the inclined block, applying a gradually increasing extrusion force to firmly fix the clamping plate in the bayonet. The upper die base and the lower die base gradually close to form a seamless mold cavity. Finally, the plastic melt fills the cavity. This process ensures precise and consistent mold closing, avoids voids, and can ensure the precise docking of the integrated forming mold for the thermostat housing when closing, reduces the closing gap, enables the plastic melt to flow evenly during the injection process, avoids product size deviation caused by uneven gaps, and improves the forming accuracy and product quality. Brief Description of the Drawings

[0017] Figure 1 Structural schematic diagram of the present utility model;

[0018] Figure 2 Structural schematic diagram of the front side cross-section of the present utility model;

[0019] Figure 3 Enlarged structural schematic diagram of part A of the present utility model;

[0020] Figure 4 Enlarged structural schematic diagram of part B of the present utility model;

[0021] Figure 5 Structural schematic diagram of the separation of the lower die base and the upper die base of the present utility model.

[0022] In the figure: 1 upper die base, 2 injection port, 3 lower die base, 4 installation mechanism, 401 knob, 402 lead screw, 403 internal thread seat, 404 rotation hole, 405 connecting block, 406 bayonet, 407 clamping plate, 408 sliding groove, 409 tension spring, 410 U-shaped seat, 411 slider, 412 inclined block, 5 card slot. Detailed Description of the Embodiment

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-5 , this embodiment provides a technical solution: an integrated forming mold for a thermostat housing, including a lower die base 3 and an installation mechanism 4;

[0025] Lower die base 3: A clamping groove 5 is provided on its upper surface. The upper die base 1 is arranged inside the clamping groove 5. It also includes an injection port 2 which is opened in the middle of the upper surface of the upper die base 1. The injection port 2 is communicated with the cavity of the upper die base 1. After the mold is completely closed, the space in the mold cavity is filled with plastic melt through the injection port 2. After the upper die base 1 is separated from the lower die base 3, the upper die base 1 can move freely and be separated from the lower die base 3. After the mold is separated, the thermostat housing that has completed cooling can be taken out from the integrated molding mold;

[0026] Installation mechanism 4: It includes a connection block 405, a bayonet 406, a clamping plate 407, a tension spring 409, a U-shaped seat 410 and a slider 411. The number of sliders 411 is four. The four sliders 411 slide vertically on the front, rear, left and right inner walls of the card slot 5 respectively. U-shaped seats 410 are fixedly connected to the upper surfaces of the sliders 411. Clamping plates 407 are rotatably connected to the interiors of the U-shaped seats 410. Tension springs 409 are fixedly connected between every two adjacent clamping plates 407. The connection block 405 is fixedly connected to the lower surface of the upper die base 1. Bayonets 406 are provided in the interiors of the connection blocks 405. The bayonets 406 are cooperatively installed with the vertically adjacent clamping plates 407 respectively. Chamfer structures are provided at the edges of the bayonets 406. The installation mechanism 4 further includes eight chutes 408. The eight chutes 408 are all provided on the inner wall of the card slot 5. The inner walls of every two adjacent chutes 408 are slidably connected to the adjacent ends of a slider 411 respectively. The installation mechanism 4 further includes eight inclined blocks 412. The eight inclined blocks 412 are all fixedly connected to the front, rear, left and right inner walls of the card slot 5. The inclined surfaces of the inclined blocks 412 are cooperatively installed with the outer sides of the adjacent clamping plates 407 respectively. The installation mechanism 4 further includes a lead screw 402, an internally threaded seat 403 and a rotating hole 404. The rotating hole 404 is provided in the bottom wall of the card slot 5. The lead screw 402 is rotatably connected to the interior of the rotating hole 404. The upper end of the lead screw 402 is rotatably connected to the lower surface of the vertically adjacent slider 411. The internally threaded seats 403 are all fixedly connected to the lower surface of the lower die base 3. The internally threaded seats 403 and the rotating holes 404 are in one-to-one correspondence in the up-and-down positions. The interior of the internally threaded seat 403 is threadedly connected to the lower end of the lead screw 402. The installation mechanism 4 further includes a knob 401. The knobs 401 are all fixedly connected to the bottom ends of the lead screws 402. Insert the connection block 405 on the upper die base 1 into the interior of the card slot 5, so that the bottom end of the connection block 405 contacts the two adjacent clamping plates 407, generating an extrusion effect. The extrusion causes the two clamping plates 407 to rotate around the pin shafts in the U-shaped seats 410 respectively. During the rotation process, the tension springs 409 are stretched. In this way, the protruding parts at the tops of the clamping plates 407 can be fixed by the bayonets 406. Then rotate the knob 401. The knob 401 drives the lead screw 402 to rotate. Through the threaded connection of the lead screw 402 with the internally threaded seat 403, it moves downward along the interior of the internally threaded seat 403 and drives the slider 411 to move downward along the inner wall of the chute 408. When the lead screw 402 drives the slider 411 to move downward by rotation, the downward movement of the slider 411 causes the clamping plate 407 connected thereto to move downward accordingly. The movement of the clamping plate 407 makes its bottom contact the inclined surface of the inclined block 412. As the inclined surface angle of the inclined block 412 gradually becomes smaller, a squeezing force is applied to the clamping plate 407. However, the change in the inclined surface angle of the inclined block 412 results in an increasing squeezing force applied to the clamping plate 407. This squeezing force presses the protruding part at the top of the clamping plate 407 into the interior of the bayonet 406, firmly fixing it inside the bayonet 406 and compressing the tension spring 409. While the clamping plate 407 is being squeezed and firmly clamped into the interior of the bayonet 406,It also drives the connecting block 405 to move downward. In this way, the upper die holder 1 can gradually close with the lower die holder 3 through the movement of the connecting block 405 until the two die holders are completely closed, forming a complete mold cavity, thereby ensuring that a complete mold cavity will be formed when the thermostat housing integral molding dies are closed, avoiding the existence of any gaps, improving the molding accuracy and product quality. The plastic cools and solidifies in the mold to ensure that the plastic is completely molded. When the cooling time reaches the predetermined value, the operator starts to rotate the knob 401 in the reverse direction. The knob 401 drives the lead screw 402 to rotate in the reverse direction. The lead screw 402 moves upward along the inside of the internal thread seat 403 through the threaded connection with the internal thread seat 403. As the lead screw 402 rotates, the slider 411 is driven to move upward and along the inner wall of the chute 408. The upward movement of the slider 411 causes the clamping plate 407 connected to it to also rise. The upward movement of the clamping plate 407 causes the protruding part at its top to gradually separate from the bayonet 406. The inclined surface angle of the inclined block 412 gradually becomes larger, reducing the extrusion force on the clamping plate 407. As the inclined surface angle increases, the clamping plate 407 gradually disengages from the inside of the bayonet 406. At the same time, the tension spring 409 rebounds, driving the clamping plate 407 to rebound and separate from the bayonet 406. After relieving the extrusion of the clamping plate 407.,

[0027] The working principle of an integrated forming die for a thermostat housing provided by the utility model is as follows: First, insert the connecting block 405 on the upper die base 1 into the card slot 5, so that the bottom end of the connecting block 405 contacts the adjacent two clamping plates 407, generating an extrusion effect. The extrusion causes both clamping plates 407 to rotate around the pin shaft in the U-shaped seat 410, and the tension spring 409 is stretched during the rotation. In this way, the raised part at the top of the clamping plate 407 can be fixed by the bayonet 406. Then, rotate the knob 401, and the knob 401 drives the lead screw 402 to rotate. The lead screw 402 is threadedly connected through the internal thread seat 403, so that it moves downward along the inside of the internal thread seat 403 and drives the slider 411 to move downward along the inner wall of the chute 408. When the lead screw 402 drives the slider 411 to move downward by rotation, the downward movement of the slider 411 causes the clamping plate 407 connected to it to also move downward. The movement of the clamping plate 407 makes its bottom contact the inclined surface of the inclined block 412. As the inclined surface angle of the inclined block 412 gradually becomes smaller, an extrusion force is applied to the clamping plate 407. However, the change in the inclined surface angle of the inclined block 412 results in an increasing extrusion force applied to the clamping plate 407. This extrusion force presses the raised part at the top of the clamping plate 407 into the bayonet 406, firmly fixing it inside the bayonet 406 and compressing the tension spring 409. While the clamping plate 407 is being extruded and firmly clamped into the bayonet 406, it also drives the connecting block 405 to move downward. In this way, the upper die base 1 can gradually close with the lower die base 3 through the movement of the connecting block 405 until the two die bases are completely closed, forming a complete die cavity. After the die is completely closed, the space inside the die cavity is filled with plastic melt through the injection port 2, which can ensure that a complete die cavity will be formed when the integrated forming die for the thermostat housing is closed, avoiding the existence of any gaps, improving the forming accuracy and product quality. The plastic cools and solidifies in the die to ensure that the plastic is completely formed. When the cooling time reaches the predetermined value, the operator starts to rotate the knob 401 in the reverse direction. The knob 401 drives the lead screw 402 to rotate in the reverse direction. The lead screw 402 is threadedly connected with the internal thread seat 403, so that it moves upward along the inside of the internal thread seat 403. As the lead screw 402 rotates, the slider 411 is driven to move upward and along the inner wall of the chute 408. The upward movement of the slider 411 causes the clamping plate 407 connected to it to also rise. The upward movement of the clamping plate 407 makes the raised part at its top gradually separate from the inside of the bayonet 406. The inclined surface angle of the inclined block 412 gradually becomes larger, reducing the extrusion force on the clamping plate 407. As the inclined surface angle increases, the clamping plate 407 gradually disengages from the inside of the bayonet 406. At the same time, the tension spring 409 rebounds, driving the clamping plate 407 to rebound and separate from the bayonet 406. After the extrusion of the clamping plate 407 is released, the upper die base 1 can move freely and be separated from the lower die base 3. After the die is separated, the cooled thermostat housing can be taken out from the integrated forming die.

[0028] The above are only the embodiments of the present utility model, and do not thereby limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present utility model.

Claims

1. A thermostat housing integrated molding die, characterized in that: It includes a lower die base (3) and an installation mechanism (4); Lower die base (3): A clamping groove (5) is formed on its upper surface, and an upper die base (1) is arranged inside the clamping groove (5); Installation mechanism (4): It includes a connecting block (405), a bayonet (406), a clamping plate (407), a tension spring (409), a U-shaped seat (410) and a slider (411). The number of the sliders (411) is four. The four sliders (411) slide vertically on the front, rear, left and right inner walls of the clamping groove (5) respectively. U-shaped seats (410) are fixedly connected to the upper surfaces of the sliders (411). Clamping plates (407) are rotatably connected inside the U-shaped seats (410). Tension springs (409) are fixedly connected between every two adjacent clamping plates (407). The connecting block (405) is fixedly connected to the lower surface of the upper die base (1). Bayonets (406) are formed inside the connecting block (405). The bayonets (406) are cooperatively installed with the vertically adjacent clamping plates (407).

2. The integrated molding die for a thermostat housing according to claim 1, wherein: It further includes an injection port (2), and the injection port (2) is formed in the middle of the upper surface of the upper die base (1). The injection port (2) is communicated with the cavity of the upper die base (1).

3. The integrated molding die for a thermostat housing according to claim 1, characterized in that: Chamfer structures are arranged at the edges of the bayonets (406).

4. A thermostat housing integral molding die according to claim 1, characterized in that: The installation mechanism (4) further includes sliding grooves (408). The number of the sliding grooves (408) is eight. The eight sliding grooves (408) are all formed in the inner wall of the clamping groove (5). The inner walls of every two adjacent sliding grooves (408) are slidably connected to the adjacent ends of a slider (411).

5. The integrated molding die for a thermostat housing according to claim 1, characterized in that: The installation mechanism (4) further includes inclined blocks (412). The number of the inclined blocks (412) is eight. The eight inclined blocks (412) are all fixedly connected to the front, rear, left and right inner walls of the clamping groove (5). The inclined surfaces of the inclined blocks (412) are cooperatively installed with the outer sides of the adjacent clamping plates (407).

6. The integrated molding die for a thermostat housing according to claim 1, wherein: The installation mechanism (4) further includes a lead screw (402), an internally threaded seat (403) and a rotating hole (404). The rotating hole (404) is formed in the bottom wall of the clamping groove (5). A lead screw (402) is rotatably connected inside the rotating hole (404). The upper end of the lead screw (402) is rotatably connected to the lower surface of the vertically adjacent slider (411). The internally threaded seats (403) are all fixedly connected to the lower surface of the lower die base (3). The internally threaded seats (403) and the rotating holes (404) are in one-to-one correspondence in the up and down positions. The inside of the internally threaded seat (403) is threadedly connected to the lower end of the lead screw (402).

7. The integrated molding die for a thermostat housing according to claim 6, wherein: The installation mechanism (4) further includes a knob (401), and the knobs (401) are all fixedly connected to the bottom ends of the lead screws (402).

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