One-to-two PC protective sleeve forming die

Abstract

The utility model relates to a PC protective sleeve forming die capable of producing two products at one time. Comprising an upper die and a lower die which are matched with each other, at least two upper forming dies are fixedly installed on the upper die, and lower forming dies corresponding to the upper forming dies are fixedly installed on the lower die; the upper forming die comprises an upper die base fixedly installed on the upper die, a plurality of driving rods are obliquely arranged in the upper die base, and the ends of the driving rods penetrate through the upper die base and extend out of the upper die base. The lower forming die comprises a lower die base fixedly installed on the lower die through a fastener, a side die is arranged in the lower die base in a sliding mode, and a driving hole matched with the driving rod is formed in the side die. By arranging two or two upper forming molds and two lower forming molds between the upper mold and the lower mold, compared with a traditional mold, the injection molding capacity is improved, a machine table is saved, electricity is saved, manpower is saved, and the requirements of customers can be better met; the side die is driven by the driving rod to move in the direction away from the lower die base, so that the side die is separated from the side face of the protective sleeve, and the phenomenon that the side die of the protective sleeve is scratched is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field especially one PC protective sheath forming die of two. BACKGROUND

[0002] At present, intelligent mobile phone has become one of the indispensable electronic products in people's daily life, thereby accompanying the large demand of mobile phone shell, the mobile phone shell not only has the function of protecting the mobile phone, but also has the effect of decorating the mobile phone, people usually configure the mobile phone shell on the mobile phone for better protection of the mobile phone, the traditional mobile phone shell generally adopts the injection molding mode production and adopts the manual demolding mode to take out the mobile phone shell, the surface of the mobile phone shell is damaged in the process of manual taking out, which leads to the phenomenon of rework or scrap of the mobile phone shell, and the production cost of the mobile phone shell is improved.

[0003] Later, someone invented a mobile phone shell mould convenient for demolding, which adds a driving mechanism on the mould, so that the product after injection molding of the mobile phone shell is pushed out from the middle to the top by the driving mechanism, so as to realize the automatic demolding of the mobile phone shell on the mould and improve the demolding efficiency of the molded mobile phone shell. The mobile phone shell is easy to rub with the inner wall of the injection molding cavity when being demolded, which leads to the scratch phenomenon on the surface of the molded product, reduces the qualified rate of the mobile phone shell product and leads to unstable quality of the molded product. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a one-out-two PC protective sheath forming die to solve the problems in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of a one-out-two PC protective sheath forming die; the forming die comprises a matched upper die and lower die, at least two upper forming dies are fixedly installed on the upper die, and corresponding lower forming dies are fixedly installed on the lower die; the upper forming die comprises an upper die seat fixedly installed on the upper die, a plurality of driving rods are obliquely arranged in the upper die seat, the end portions of the driving rods pass through the upper die seat and extend outward from the upper die seat; the lower forming die comprises a lower die seat fixedly installed on the lower die through fasteners, a side die is slidingly arranged in the lower die seat, and driving holes matched with the driving rods are arranged on the side die; when the die is closed and opened, the driving rods drive the side die to move in the lower die seat.

[0006] Compared with the prior art, the injection molding capacity is improved, the machine is saved, the electricity is saved, the manual labor is saved, and the customer demand can be better met by setting two or two upper forming dies between the upper die and the lower die.

[0007] The upper die includes an upper connecting plate, an upper transition plate and an upper forming plate arranged in sequence from top to bottom.

[0008] The lower die includes a lower connecting plate and a lower forming plate, and the lower die base is installed on the lower forming plate.

[0009] The upper die base is provided with an upper forming cavity, the bottom surface of the upper forming cavity is provided with an upper forming surface, the periphery of the upper forming surface is provided with four positioning grooves, the positioning grooves include a guide surface obliquely arranged on the side surface of the upper forming cavity and two positioning surfaces arranged on the bottom surface of the upper forming cavity, the two positioning surfaces are arranged perpendicular to each other and are connected to each other in an arc transition manner, one of the two positioning surfaces is connected with the guide surface, and the other positioning surface is connected with a sealing surface.

[0010] The lower die base is provided with an inwardly recessed lower forming cavity, and the periphery of the lower die base is provided with a containing groove connected with the lower forming cavity in a penetrating manner.

[0011] The lower installation groove is fixedly installed with two clamping plates arranged opposite to each other on the two sides of the lower installation groove, a sliding groove is arranged between the clamping plate and the bottom surface of the lower installation groove, the two sides of the side die are provided with sliding plates matched with the sliding groove, and the side die moves along the sliding groove between the two clamping plates.

[0012] The utility model discloses a preferred technical scheme, the lateral surface level of side mould is provided with fixed groove, and the wear -resisting block is fixedly installed in fixed groove, and the surface of wear -resisting block is higher than the surface of side mould, in the process of closing mould and parting, the surface of wear -resisting block and the direction surface in upper mould base abut.

[0013] The utility model discloses a preferred technical scheme, the top of side mould is provided with the positioning block of with positioning slot adaptation, and the contact surface of with positioning surface adaptation and the auxiliary surface of with sealing surface cooperation are set up on positioning block.

[0014] The utility model discloses a preferred technical scheme, the center of lower mould base is vertically provided with the through -inserted hole of with lower forming cavity through connection, and the bottom mould is set up in through -inserted hole, and the bottom of bottom mould is fixedly connected with support rod, and support ring is fixedly installed on support rod, and four nitrogen gas springs are fixedly installed on lower connecting plate, and support ring is fixedly installed on nitrogen gas spring, and the lower forming surface is set up on bottom mould.

[0015] The utility model discloses a preferred technical scheme, and the liquid injection assembly is installed in liquid injection mouth, and the liquid injection assembly includes the liquid injection seat of setting in upper transition board and being T -shaped, and one liquid inlet pipe and at least two liquid outlet pipes are installed on the liquid injection seat, and the liquid outlet pipe and liquid inlet pipe are located on the upper and lower sides of liquid injection seat, the end of each liquid outlet pipe is connected with corresponding upper forming mould, the channel of through connection liquid inlet pipe and liquid outlet pipe is set up in the liquid injection seat, the recess is set up on the upper and lower surfaces of liquid injection seat, and the throat pipe is set up in recess.

[0016] In addition to the technical problems solved by the application described above, the technical features constituting the technical solutions, and the advantages brought by these technical features, other technical problems solved by the application, other technical features included in the technical solutions, and the advantages brought by these technical features will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Is the upper mould reverse three -dimensional schematic diagram of the utility model.

[0018] Figure 2 Is the lower mould forward three -dimensional schematic diagram of the utility model.

[0019] Figure 3 Is the upper forming mould and lower forming mould explosion three -dimensional schematic diagram of the utility model.

[0020] Figure 4 Is the upper forming mould reverse three -dimensional schematic diagram of the utility model.

[0021] Figure 5 Is the upper forming mould and lower forming mould combination sectional view of the utility model.

[0022] Figure 6It is the forward three-dimensional schematic view of the liquid injection assembly.

[0023] The number of the drawing is explained: 01, upper connecting plate; 02, upper transition plate; 03, upper forming plate; 04, liquid injection port; 05, throat pipe; 06, mounting hole; 07, liquid inlet pipe; 08, lower connecting plate; 09, lower forming plate; 10, lower transition plate; 11, buffer column; 12, spring; 13, liquid outlet pipe; 14, upper die base; 15, upper forming surface; 16, positioning groove; 17, guide surface; 18, positioning surface; 19, sealing surface; 20, driving rod, 21, lower die base; 22, containing groove; 23, upper joint groove; 24, lower mounting groove; 25, upper joint block; 26, side die; 27, side die surface; 28, clamping plate; 29, sliding groove; 30, sliding plate; 31, driving hole; 32, fixing groove; 33, wear-resistant block; 34, positioning block; 35, contact surface; 36, auxiliary surface; 37, bottom die; 38, supporting rod; 39, lower forming surface; 40, supporting ring; 41, liquid injection seat. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0025] Please refer to Figures 1-6 The utility model discloses a two-outlet PC protective sleeve forming die. The upper die and the lower die are matched with each other, and the upper die comprises the upper connecting plate 01, the upper transition plate 02 and the upper forming plate 03 arranged in sequence from top to bottom. The upper connecting plate 01 is fixedly connected with the upper transition plate 02 through fasteners, and the upper transition plate 02 and the upper forming plate 03 are fixedly connected through fasteners. The upper die is provided with the liquid injection port 04 for the raw material to pass through.

[0026] The bottom of the upper forming plate 03 is parallel to at least two upper mounting holes 06. Two mounting holes 06 are arranged on the upper forming plate 03 in the application, so that two protective sleeves can be formed on one die at the same time. An upper forming die is arranged in each mounting hole 06. The upper forming die is connected with the liquid injection port 04 in a penetrating mode, and the raw material enters the upper forming die through the liquid injection port 04.

[0027] Please refer to Figure 2As shown, the lower mold includes a lower connecting plate 08 and a lower forming plate 09, two lower transition plates 10 are arranged between the lower connecting plate 08 and the lower forming plate 09, the two lower transition plates 10 are arranged in parallel between the lower connecting plate 08 and the lower forming plate 09 and form a spaced arrangement, four buffer columns 11 are installed in a rectangular shape between the lower connecting plate 08 and the lower forming plate 09, the upper forming plate 03 is provided with a through hole matched with the buffer column 11, the end of the buffer column 11 is located in the through hole, the lower forming plate 09 is slidably connected on the buffer column 11, a spring 12 is sleeved on the buffer column 11, one end of the spring 12 abuts against the lower connecting plate 08, and the other end abuts against the upper forming plate 03, when the upper mold and the lower mold are in the process of closing, under the action of the spring 12, stable supporting force and buffering performance are provided, and the precision and stability of the mold are ensured.

[0028] The lower forming plate 09 is provided with the same number of fixing holes as the mounting hole 06, and a lower forming die matched with the upper forming die is fixedly installed in the fixing hole through fasteners. The lower forming die and the upper forming die are matched to produce the protective sleeve.

[0029] Please refer to Figures 3-5 As shown, the upper forming die includes an upper mold seat 14 fixedly installed in the mounting hole 06 through fasteners, an upper forming cavity is arranged in the upper mold seat 14, an upper forming surface 15 is arranged on the bottom surface of the upper forming cavity, and the shape of the upper forming surface 15 is processed according to the shape of the product. Four positioning grooves 16 are arranged around the upper forming surface 15, the positioning groove 16 includes a guide surface 17 obliquely arranged on the side surface of the upper forming cavity and two positioning surfaces 18 arranged on the bottom surface of the upper forming cavity, the two positioning surfaces 18 are arranged perpendicular to each other and are connected by arc transition. One of the two positioning surfaces 18 is connected with the guide surface 17. The other positioning surface 18 is connected with a sealing surface 19 obliquely arranged on one side of the upper forming surface 15. The sealing surface 19, the two positioning surfaces 18 and the guide surface 17 form the positioning groove 16. When the lower forming die and the upper forming die are closed, the lower forming die abuts against the two mutually perpendicular positioning surfaces 18 respectively, so as to prevent the lower forming die and the upper forming die from being deviated during closing. At the same time, during closing, the lower forming die first contacts the guide surface 17 and moves along the guide surface 17. After closing, the inclined sealing surface 19 is used for sealing. Since the protective sleeve has a certain curvature, the position of the sealing surface 19 is corresponded to the position of the curvature of the protective sleeve.

[0030] A plurality of drive rods 20 are obliquely arranged in the upper mold seat 14, the inclination angles of the plurality of drive rods 20 are the same, the end portions of the drive rods 20 penetrate through the upper mold seat 14 and extend outwardly from the upper mold seat 14. When the upper forming die and the lower forming die are in the process of closing, the drive rods 20 penetrate into the lower forming die.

[0031] The lower forming die comprises a lower die seat 21 fixedly installed on the lower forming plate 09 by fasteners, and an inwardly recessed lower forming cavity is arranged on the lower die seat 21. A containing groove 22 is arranged around the lower die seat 21 and is in through connection with the lower forming cavity. The containing groove 22 comprises an inverted-trapezoidal upper joint groove 23 and a stepped lower installation groove 24 located directly below the upper joint groove 23. An upper joint block 25 is arranged on the upper die seat 14 and is adapted to the upper joint groove 23. When the upper forming die and the lower forming die are closed, the upper joint block 25 is inserted into the upper joint groove 23, thereby improving the accuracy of the upper forming die and the lower forming die when they are closed. A side die 26 is arranged in the lower installation groove 24. The side die 26 is provided with a side die surface 27 on one side, and the side die surface 27 extends into the lower forming cavity. The side die surfaces 27 on each side die 26 are combined into a complete side forming surface, and each side die surface 27 is processed according to the side surface of the protective sleeve.

[0032] Two clamping plates 28 are fixedly installed in each lower installation groove 24 by fasteners, and the two clamping plates 28 are oppositely arranged on both sides of the lower installation groove 24. The top surface of the clamping plate 28 is flush with the bottom surface of the upper joint groove 23. Alternatively, the top surface of the clamping plate 28 can be lower than the bottom surface of the upper joint groove 23. A sliding groove 29 is arranged between the clamping plate 28 and the bottom surface of the lower installation groove 24. The side die 26 is provided with a sliding plate 30 adapted to the sliding groove 29 on both sides, and the side die 26 moves along the sliding groove 29 between the two clamping plates 28. The side die 26 is provided with a driving hole 31 adapted to the driving rod 20. Since the driving rod 20 is obliquely arranged on the upper die seat 14, when the upper forming die and the lower forming die are closed, the driving rod 20 penetrates into the driving hole 31. The side die 26 moves into the lower forming cavity under the action of the driving rod 20, so that the side die surfaces 27 on the plurality of side dies 26 are combined into a complete side forming surface. Conversely, when the upper forming die and the lower forming die are opened, the side die 26 moves out of the lower die seat 21 under the action of the driving rod 20. Thus, the side die 26 moves horizontally in the sliding groove 29 on the lower die seat 21,

[0033] A fixing groove 32 is horizontally arranged on the side surface of the side die 26, and a wear-resistant block 33 made of high manganese steel is fixedly installed in the fixing groove 32 by fasteners. The surface of the wear-resistant block 33 is higher than the surface of the side die 26. When the upper forming die and the lower forming die are closed, the surface of the wear-resistant block 33 abuts against the guide surface 17 in the upper die seat 14. If the wear-resistant block 33 or the guide surface 17 in the upper die seat 14 is worn during long-term use, a new wear-resistant block 33 can be replaced in time, without the need to replace the upper die seat 14 or the side die 26. Since there is a gap between the wear-resistant block 33 and the fasteners, the wear-resistant block 33 is installed in the fixing groove 32 to prevent the wear-resistant block 33 from moving on the surface of the side die 26 when the upper forming die and the lower forming die are closed and opened. Thus, the wear-resistant block 33 and the side die 26 are prevented from being worn.

[0034] The top of the side mold 26 is provided with a positioning block 34 matched with the positioning groove 16, the positioning block 34 is provided with a contact surface 35 matched with the positioning surface 18 and an auxiliary surface 36 matched with the sealing surface 19. When the two contact surfaces 35 of the top of the side mold 26 abut against the corresponding positioning surfaces 18, it indicates that the mold of the lower mold and the upper mold has been in place. The auxiliary surface 36 and the sealing surface 19 abut against each other. The side mold 26 and the upper mold base are completely attached to form a closed space.

[0035] A through hole is vertically arranged at the center of the lower mold base 21 and connected with the lower molding cavity. A bottom mold 37 is arranged in the through hole. The bottom of the bottom mold 37 is fixedly connected with a support rod 38 through a fastener. The support rod 38 is fixedly installed with a support ring 40. Four nitrogen gas springs are fixedly installed on the lower connecting plate 08. The support ring 40 is fixedly installed on the nitrogen gas springs. After the injection molding is completed, the bottom mold 37 is pushed out by the nitrogen gas springs, which is convenient for the operator to take. The top of the bottom mold 37 is provided with a lower molding surface 39. The lower molding surface 39, the side molding surface and the upper molding surface 15 combine to form a molding cavity. After the raw material enters the cavity through the injection port 04, the required product is obtained after cooling. Since the bottom mold 37 is fixed by the connecting plate, when the same specification and different models of products need to be produced, only the bottom mold 37 needs to be replaced, and the entire lower mold does not need to be replaced. That is, the same set of molds can produce multiple protective shells of the same specification. In the actual production process, the mold debugging time is shortened, and for the same specification product, only one set of mold is prepared, and the corresponding bottom mold 37 is prepared according to different models of products. It is not necessary to prepare a corresponding mold for each model. The number of molds is reduced, thereby reducing the cost of the mold.

[0036] It should be noted that, in order to describe clearly, the fastener in the present application is any one of a screw, a bolt and a screw.

[0037] Please refer to Figure 6 As shown in the figure, the injection port 04 is provided with an injection assembly. The injection assembly includes a T-shaped injection seat 41 arranged in the upper transition plate 03. The injection seat 41 is provided with one liquid inlet pipe 07 and at least two liquid outlet pipes 13. The liquid outlet pipes 13 and the liquid inlet pipe 07 are arranged on the upper and lower sides of the injection seat 41. The end of each liquid outlet pipe 13 is connected with the corresponding upper mold. The injection seat 41 is provided with a channel connected with the liquid inlet pipe 07 and the liquid outlet pipe 13. The upper and lower surfaces of the injection seat 41 are provided with grooves, and the grooves are provided with throat pipes 05. When the raw material enters the upper transition plate 02 through the injection port 04, the raw material is cooled. The throat pipe 05 can control the flow speed and direction of the molten plastic, ensure the uniform distribution of the molten plastic in the mold, and avoid the quality problem of the plastic part caused by uneven flow.

[0038] The utility model discloses a mould is opened in the process. Through the drive link drive side mould moves to the lower mould base. Make the lower forming surface 39, side forming surface and the upper forming surface 15 combination forming cavity. When raw material enters the cavity through injection liquid mouth 04, get the required product after cooling. When injection molding is completed, the mould is opened, and through the drive link drive side mould moves to the direction of being away from the lower mould base, thereby making side mould and the side of protective sleeve separate, then by nitrogen gas spring and take out protective sleeve, when the operator, avoid the phenomenon of scratching of side mould of protective sleeve when taking protective sleeve.

[0039] If the embodiment of the utility model has involved directionality indication (such as up, down, left, right, front, back), then the directionality indication is only used to explain the relative position relationship, movement condition etc. between components in a certain specific posture (as shown in the drawing), if the specific posture changes, then the directionality indication also changes accordingly.

[0040] The above embodiment is only used to describe the preferred embodiment of the utility model, and does not limit the scope of the utility model, and various deformations and improvements of the technical scheme of the utility model made by the ordinary engineering technical personnel in the art without departing from the design spirit of the utility model should fall within the protection scope determined by the claims of the utility model.

Claims

1. A two-out-of-one PC protective sleeve forming mold comprising an upper mold and a lower mold which cooperate with each other, characterized in that, The upper die is fixedly installed with at least two upper forming dies, and the lower die is fixedly installed with lower forming dies corresponding to the upper forming dies; the upper forming die comprises an upper die seat fixedly installed on the upper die, and a plurality of driving rods are obliquely arranged in the upper die seat, and the end portions of the driving rods extend out of the upper die seat; the lower forming die comprises a lower die seat fixedly installed on the lower die by fasteners, and a side die is slidingly arranged in the lower die seat, and a driving hole is arranged on the side die and adapted to the driving rod; when the mold is closed and opened, the driving rod drives the side die to move in the lower die seat.

2. The one-to-two PC protection sleeve forming mold according to claim 1, wherein: The upper die comprises an upper connecting plate, an upper transition plate and an upper forming plate arranged in sequence from top to bottom; the bottom of the upper forming plate is parallel to at least two upper mounting holes; and the upper die seat is fixedly installed in the mounting hole.

3. The one-to-two PC protection sleeve forming mold according to claim 2, wherein: The lower die comprises a lower connecting plate and a lower forming plate, and the lower die seat is installed on the lower forming plate; two lower transition plates are arranged between the lower connecting plate and the lower forming plate, and are arranged in parallel between the lower connecting plate and the lower forming plate and are arranged at intervals; four buffer columns are arranged in a rectangular shape between the lower connecting plate and the lower forming plate, the lower forming plate is slidingly connected to the buffer columns, a spring is sleeved on the buffer column, one end of the spring abuts against the lower connecting plate, and the other end abuts against the upper forming plate.

4. The one-to-two PC protection sleeve forming mold according to claim 1, wherein: The upper die seat is provided with an upper forming cavity, the bottom surface of the upper forming cavity is provided with an upper forming surface, four positioning grooves are arranged around the upper forming surface, the positioning grooves comprise a guide surface obliquely arranged on the side surface of the upper forming cavity and two positioning surfaces arranged on the bottom surface of the upper forming cavity, the two positioning surfaces are arranged perpendicular to each other and are connected to each other in an arc transition manner; one of the two positioning surfaces is connected to the guide surface; the other positioning surface is connected to a sealing surface, and the sealing surface is obliquely arranged on one side of the upper forming surface.

5. The one-to-two PC protection sleeve forming mold according to claim 1, wherein: The lower die seat is provided with an inwardly recessed lower forming cavity, and the periphery of the lower die seat is provided with a containing groove connected to the lower forming cavity; the containing groove comprises an inverted trapezoidal upper joint groove and a stepped lower mounting groove located directly below the upper joint groove; the upper die seat is provided with an upper joint block adapted to the upper joint groove, and the lower mounting groove is slidingly connected to a side die; one side of the side die is provided with a side die surface.

6. The one-to-two PC protection sleeve forming mold according to claim 5, wherein: Two clamping plates are fixedly installed in the lower mounting groove, and the two clamping plates are arranged opposite to each other on both sides of the lower mounting groove; a sliding groove is arranged between the clamping plate and the bottom surface of the lower mounting groove; the side die is provided with sliding plates adapted to the sliding groove on both sides of the side die, and the side die moves along the sliding groove between the two clamping plates; the side die is provided with a driving hole adapted to the driving rod.

7. The one-to-two PC protection sleeve forming mold according to claim 6, wherein: The side surface of the side die is horizontally provided with a fixing groove, and a wear-resistant block is fixedly installed in the fixing groove, and the surface of the wear-resistant block is higher than the surface of the side die; during the closing and opening of the mold, the surface of the wear-resistant block abuts against the guide surface in the upper die seat.

8. The one-to-two PC protection sleeve forming mold according to claim 4, wherein: The top of the side die is provided with a positioning block adapted to the positioning groove, and the positioning block is provided with a contact surface adapted to the positioning surface and an auxiliary surface matched with the sealing surface.

9. The two-out-of-one PC protector sleeve forming die of claim 8, wherein: A through hole penetratingly connected to the lower forming cavity is vertically arranged at the center of the lower die seat, a bottom die is arranged in the through hole, a support rod is fixedly connected to the bottom of the bottom die, a support ring is fixedly installed on the support rod, four nitrogen gas springs are fixedly installed on the lower connecting plate, and the support ring is fixedly installed on the nitrogen gas springs; the bottom die is provided with a lower forming surface.

10. The two-out-of-one PC protector sleeve forming die of claim 9, wherein: The liquid injection assembly is arranged in the T-shaped liquid injection seat in the upper transition plate, and one liquid inlet pipe and at least two liquid outlet pipes are arranged on the liquid injection seat and located on the upper and lower sides of the liquid injection seat; the end of each liquid outlet pipe is connected with the corresponding upper forming die; the liquid injection seat is provided with a channel connecting the liquid inlet pipe and the liquid outlet pipes; and the upper and lower surfaces of the liquid injection seat are provided with grooves, and the grooves are provided with throat pipes.

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