Processing mold and processing technology for pacifying chain

Abstract

The invention relates to the technical field of infant product processing, in particular to a pacifying chain processing mold. Comprising an upper die, a lower die and a middle plate, the upper die is provided with a plurality of first cavities, and the lower die is provided with a plurality of second cavities; when the middle plate is arranged between the upper die and the lower die, the films in the first cavity and the second cavity are respectively pre-pressed and formed; a plurality of tensile core wires are wound on the winding jig, and the winding jig can be arranged on the lower die after the middle plate is detached, so that the films in the first cavity and the second cavity cover the corresponding tensile core wires and are integrally vulcanized and formed; firstly, the middle plate is arranged between the upper die and the lower die, the pacifying chain is formed in the first cavity and the second cavity respectively, then the middle plate is moved away, the tensile core wires are arranged between the upper die and the lower die through the winding jig for secondary forming, the tensile core wires penetrate through the length direction of the pacifying chain, and the ductility of the pacifying chain meets the tension test standard. Batch production is easy to realize, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of infant product processing, in particular to a pacifier chain processing mold and processing technology, and discloses a pacifier chain processing technology. BACKGROUND

[0002] The pacifier is used to satisfy the sucking demand of infants and young children so as to make them calm down, and is normally reusable as long as the biting part of the product is kept clean. In order to prevent the pacifier from falling off and being lost, the pacifier is usually fixed on the body of the infant and young child by a pacifier chain, so as to facilitate the child to find the lost pacifier in sleep.

[0003] The existing pacifier chain is usually made of silica gel and cloth materials. The cloth pacifier chain has flexibility and little ductility, but poor wear resistance and short service life. After wear and tear, the cloth product is prone to linting, and the inhaled lint can affect the health of the infant and young child. The silica gel pacifier chain has high flexibility and wear resistance, but may be stretched unintentionally by the infant and young child during use, and there is a risk of strangulation by winding around the neck. For example, the American standard requires that the length of the pacifier chain product should not exceed 30 CM under a pulling force of 22.5 N, and the European standard requires that the length of the pacifier chain product should not exceed 22 CM under a pulling force of 25 N.

[0004] Chinese patent CN116270251A discloses a device for fixing a child pacifier, comprising a flexible band, a clamp on the first end of the flexible band, and a binding structure on the second end of the flexible band for binding the pacifier; the flexible band comprises a cladding layer and an intermediate layer, the elastic coefficient of the intermediate layer is greater than that of the cladding layer; the elastic coefficient K of the flexible band is greater than or equal to 98 N / M. The cladding layer changes the material properties of the flexible band after combining with the intermediate layer, and the flexible band has small ductility under a certain pulling force, and the flexibility of the flexible band is improved under the premise of ensuring the softness.

[0005] In the above-mentioned prior art, cloth intermediate layers are added in the flexible band to improve the ductility, but the intermediate layers are not filled at the buckle positions, the ductility of the end portions is too large, the overall flexible band cannot meet the pulling force test standard, and there is a risk of strangulation by winding; the intermediate layers are prone to displacement during mold pressing, and mass production is complex; the buckle positions need to be assembled, and there are many parts and high cost.

[0006] In summary, it is necessary to improve the existing process to solve the problems of product parameters, process difficulties and cost of the pacifier chain. SUMMARY

[0007] The present application aims to overcome the defects and deficiencies of the prior art, and provides a pacifier chain processing mold and processing technology which can be made to meet the stretching standard and have good safety.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: The present invention discloses a processing mold for a soothing chain, comprising an upper mold, a lower mold, and a middle plate. The upper mold has a plurality of first cavities, and the lower mold has a plurality of second cavities, with the first cavities and second cavities corresponding one-to-one. When the middle plate is installed between the upper mold and the lower mold, the upper mold, the middle plate, and the lower mold are closed, so that the films in the first cavities and the second cavities are pre-pressed and formed respectively. The invention also includes a winding fixture, on which a plurality of tensile core wires are wound. After the middle plate is removed, the winding fixture can be installed on the lower mold. When the upper mold and the lower mold are closed, the films in the first cavities and the second cavities cover the corresponding tensile core wires and are vulcanized and formed integrally.

[0009] According to the above scheme, the upper surface of the middle plate is provided with a plurality of first wire cores, and the plurality of first wire cores are paired with the first cavity one by one; the lower surface of the middle plate is provided with a plurality of second wire cores, and the plurality of second wire cores are paired with the second cavity one by one.

[0010] According to the above scheme, both ends of the first cavity are provided with a first lead wire groove, and the first lead wire groove is paired with both ends of the first wire core; both ends of the second cavity are provided with a second lead wire groove, and the second lead wire groove is paired with both ends of the second wire core.

[0011] According to the above scheme, the diameter of the first wire core and the second wire core is L1, and the diameter of the first lead wire groove and the second lead wire groove is L2. Then L2≤L1≤1.3*L2.

[0012] According to the above scheme, a plurality of first winding posts are provided on one side of the winding fixture, and a plurality of second winding posts are provided on the other side of the winding fixture; the first winding posts and the second winding posts are respectively paired with the two ends of the second cavity, and the tensile core wire is wound on the first winding posts and the second winding posts.

[0013] According to the above scheme, several first winding posts are arranged in a row at intervals. The first and last first winding posts are provided with wire clamping grooves to form wire bundle terminals. The two ends of the tensile core wire are respectively fixed on the corresponding wire bundle terminals.

[0014] According to the above scheme, the lower mold is provided with several wire fixing blocks, which are paired with the first winding pile; the wire fixing blocks are provided with two wire dividing grooves, and the tensile core wires are wound on the first winding pile and the second winding pile in a double-strand manner, and the two tensile core wires are respectively passed through the corresponding wire dividing grooves.

[0015] According to the above solution, the wire winding fixture includes two cross bars and two connecting rods. The two ends of the connecting rods are respectively connected to the two cross bars to form a "mouth" shaped frame structure. The first wire winding post and the second wire winding post are respectively arranged on the corresponding cross bars; two guiding grooves are provided on the lower die, at least two limiting blocks are provided in the guiding grooves, at least two positioning grooves are provided on the cross bars, and the cross bars are inserted into the guiding grooves so that the limiting blocks and the positioning grooves are paired.

[0016] An anti - anxiety chain processing process has the following steps: Step 1: Take rubber material for mixing and prepare a film with uniform thickness, and cut the film; the mold is clamped and fixed, the upper die, the middle plate and the lower die are respectively installed on the die pressing machine head, and the tensile core wire is wound on the wire winding fixture. Step 2: Clean and pre - process the first cavity, the second cavity and the middle plate. The pre - processing includes pre - heating. The middle plate is moved between the upper die and the lower die, and the film is placed on the second cavity and the middle plate. Step 3: The upper die, the middle plate and the lower die are closed, and the film in the first cavity and the second cavity is pre - pressed into shape. Step 4: Open the die and take out the middle plate, place the wire winding fixture on the lower die, and make the tensile core wire and the second wire core form a paired wire groove setting. Step 5: The upper die and the lower die are closed again, and the film in the first cavity and the second cavity wraps the tensile core wire and is integrally vulcanized into shape. Step 6: Open the die and take out the workpiece.

[0017] According to the above solution, the pre - processing in Step 2 further includes spraying a release agent. The release agent includes spraying iron fluoride, and the upper and lower surfaces of the middle plate are both sprayed with the release agent.

[0018] The beneficial effects of the present invention are as follows: The present invention first sets the middle plate between the upper die and the lower die, so that the anti - anxiety chain is respectively formed in the first cavity and the second cavity, then removes the middle plate, and arranges the tensile core wire between the upper die and the lower die through the wire winding fixture for secondary forming. The tensile core wire penetrates the length direction of the anti - anxiety chain, making the ductility of the anti - anxiety chain meet the tensile test standard. The process is simple, stable, easy to achieve mass production, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the split structure of the processing mold of the present invention; Figure 2 is Figure 1 a schematic diagram of another perspective structure; Figure 3 is a schematic diagram of the closed - die state of the upper die, the middle plate and the lower die of the present invention; Figure 4 is a schematic diagram of the state before closing the die of the wire winding fixture and the lower die of the present invention; Figure 5 This is a schematic diagram of the processing technology of the present invention. Figure 6 This is a schematic diagram of the soothing chain product of the present invention; Figure 7 This is a schematic diagram of the arrangement of the tensile core wires of the present invention on the winding fixture; Figure 8 yes Figure 7 Enlarged structural diagram of section A in the middle.

[0020] In the picture: 1. Upper mold; 2. Lower mold; 3. Middle plate; 4. Winding fixture; 5. Tensile core wire; 11. First cavity; 12. First lead wire groove; 21. Second cavity; 22. Wire fixing block; 23. Wire separating groove; 24. Guide groove; 25. Limiting block; 26. Second lead wire groove; 31. First wire core; 32. Second wire core; 41. First winding post; 42. Second winding post; 43. Crossbar; 44. Connecting rod; 45. Positioning groove; 46. Wire harness terminal. Detailed Implementation

[0021] The technical solution of the present invention will be described below with reference to the accompanying drawings and embodiments.

[0022] like Figures 1-4 As shown, the present invention provides a processing mold for a soothing chain, comprising an upper mold 1, a lower mold 2, and a middle plate 3. The upper mold 1 is provided with a plurality of first cavities 11, and the lower mold 2 is provided with a plurality of second cavities 21, with the first cavities 11 and the second cavities 21 corresponding one-to-one. When the middle plate 3 is installed between the upper mold 1 and the lower mold 2, the upper mold 1, the middle plate 3, and the lower mold 2 are closed, so that the films in the first cavities 11 and the second cavities 21 are pre-pressed and formed respectively. The invention also includes a winding fixture 4, on which a plurality of tensile core wires 5 are wound. After the middle plate 3 is removed, the winding fixture 4 can be installed on the lower mold 2, and the upper mold 1 and the lower mold 2 are closed, so that the films in the first cavities 11 and the second cavities 21 cover the corresponding tensile core wires 5 and are vulcanized and formed integrally.

[0023] The problem with the existing technology is that the fabric, as an intermediate layer, is filled inside the flexible strip and cannot extend to the end buckle. This makes the overall extensibility of the flexible strip unable to meet the tensile test standards. In addition, the fabric is expensive, prone to displacement during the molding process, and difficult to mass-produce and control costs.

[0024] Compared with the prior art, the present invention uses tensile core wire 5 to replace the fabric as the tensile intermediate layer, which runs through both ends of the comfort chain along the length direction, so that the comfort chain as a whole can meet the tensile test standards. The process is simple, the cost is low, and it is easy to achieve mass production.

[0025] Understandably, the circular cross-section of the tensile core wire 5 makes it easier to lay on the winding fixture 4, preventing displacement of the tensile core wire 5 during mold closing. In particular, the tensile core wire 5 has a wider range of material choices, including high-strength nylon, composite fiber braids, etc., thus allowing for the selection of a tensile core wire 5 with a reasonable tensile coefficient as an intermediate layer to fill the silicone-made soothing chain, improving the tensile strength of the soothing chain, preventing excessive elongation of the soothing chain, and meeting tensile test standards.

[0026] Specifically, the molding process is divided into two stages (secondary molding). The upper mold 1 and lower mold 2 are respectively installed on the head of the molding machine, and the upper mold 1 and lower mold 2 can move relative to each other. The middle plate 3 and the winding fixture 4 are detachable structures. During the first molding, the upper mold 1, middle plate 3, and lower mold 2 cooperate to form the first cavity 11 and the second cavity 2 of the film, resulting in the upper and lower petals of the comfort chain. The mold is opened to release the petals from the middle plate. After removing the middle plate, the winding fixture 4 is installed on the lower mold 2, so that the tensile core wire 5 on the winding fixture 4 is arranged along the petals on the second cavity 2. During the second molding, the two petals on the first cavity 11 and the second cavity 21 cover the tensile core wire 5. After pressure holding, heat holding, and vulcanization molding, the comfort chain is obtained.

[0027] Furthermore, the upper surface of the middle plate 3 is provided with a plurality of first wire cores 31, which are paired with the first cavity 11 one by one; the lower surface of the middle plate 3 is provided with a plurality of second wire cores 32, which are paired with the second cavity 21 one by one. During the first molding process, the first wire cores 31 and the second wire cores 32 can form semi-circular wire marks on the two lobes. After the mold is opened, the winding jig 4 is inserted so that the tensile core wire 5 is threaded on the wire marks to prevent glue leakage and the tensile core wire 5 from deviating.

[0028] Understandably, during the second molding process, the first cavity 11 and the second cavity 21 pair up to form the molding cavities of the soothing chain, and several molding cavities are sequentially spaced between the upper mold 1 and the lower mold 2. Correspondingly, several tensile core wires 5 are arranged on the winding fixture 4, and each molding cavity is assigned two parallel tensile core wires 5. The winding fixture 4 serves as a standard module, and the tensile core wires 5 can be manually routed or arranged on the winding fixture 4 using a winding machine. The specific winding method will be detailed later.

[0029] The upper and lower surfaces of the aforementioned middle plate 3 are respectively provided with a first wire core 31 and a second wire core 32. The first wire core 31 and the second wire core 32 are raised structures (embossed), which, during the first molding process, cooperate with the first cavity 11 and the second cavity 21 to form a thread mark for the laying of the tensile core wire 5. However, the tensile core wire 5 is arranged on the winding fixture 4, and the tensile core wire 5 needs to pass through both ends of the first cavity 11 and the second cavity 21. The first end of the tensile core wire 5 is an exposed part, and the other end is a transition part between the two molding cavities.

[0030] Specifically, the wiring method of the tensile core wire 5 on the winding fixture 4 is as shown in the attached figure. Figure 7 As shown, the tensile core wire 5 is wound in a double-strand form on the winding fixture 4 to correspond to the forming cavity composed of the first cavity 11 and the second cavity 21.

[0031] Therefore, both ends of the first cavity 11 are provided with first guide wire grooves 12, and the first guide wire grooves 12 are paired with the two ends of the first wire core 31; both ends of the second cavity 21 are provided with second guide wire grooves 26, and the second guide wire grooves 26 are paired with the two ends of the second wire core 32. During the first mold closing and forming, the two ends of the first wire core 31 are paired with the first guide wire grooves 12 to close the first cavity 11, and the two ends of the second wire core 32 are paired with the second guide wire grooves 26 to close the second cavity 21. Then, during the second mold closing and forming, the two lobes on the first cavity 11 and the second cavity 21 are paired, and the wire marks on the two lobes combine to form a hole for the tensile core wire 5 to pass through, while the first guide wire grooves 12 and the second guide wire grooves 26 are paired to form an outlet hole, through which the two ends of the tensile core wire 5 pass.

[0032] As attached Figure 6 As shown, the first end of the soothing chain has a partially exposed tensile core wire 5. The diameter of the first core wire 31 and the second core wire 32 is L1, and the diameter of the first guide wire groove 12 and the second guide wire groove 26 is L2. Then L2≤L1≤1.3*L2.

[0033] In the first molding process of this invention, the first wire core 31 and the second wire core 32 on the middle plate 3 are paired with the first lead wire groove 12 and the second lead wire groove 26. Since L2≤L1, when the upper mold 1, the lower mold 2 and the middle plate 3 are closed, the first wire core 31 and the first lead wire groove 12 are over-fitted or interference-fitted, and the second wire core 32 and the second lead wire groove 26 are over-fitted or interference-fitted, which improves the sealing of the first cavity 11 and the second cavity 21 and prevents the glue from overflowing.

[0034] As described above, during the first molding, the first wire core 31 and the second wire core 32 can form semi-circular wire marks on the two lobes. During the second mold closing, the two semi-circular wire marks merge to form a hole for the tensile core wire 5 to pass through. Before the second mold closing, the middle plate 3 is removed and the winding fixture 4 is placed in. Several tensile core wires 5 are inserted into the lobes on the second cavity 21 and match the wire marks formed by the second wire core 32 on the lobes. The upper mold 1 and the lower mold 2 are closed. At this time, the first lead wire groove 12 and the second lead wire groove 26 are paired to form a lead-out hole, and the tensile core wire 5 completely fills the lead-out hole, thereby eliminating the fitting accuracy tolerance of the mold, preventing silicone from overflowing to the first end of the stabilizer chain during the molding process, and avoiding silicone from sticking to the exposed part of the tensile core wire 5. Once broken silicone sticks to the exposed part of the tensile core wire 5, subsequent cleaning is difficult and will seriously affect production efficiency.

[0035] For example: If the diameter of the tensile core wire 5 is 1mm, then the diameter L1 of the first core wire 31 and the second core wire 32 is also 1mm, and the diameter L2 of the first lead wire groove 12 and the second lead wire groove 26 is 0.8-0.9mm.

[0036] If the diameter of the tensile core 5 is 1.2mm, then the diameter L1 of the first core 31 and the second core 32 is also 1.2mm, and the diameter L2 of the first lead-out groove 12 and the second lead-out groove 26 is 1mm.

[0037] Understandably, even if there is a small amount of excess glue at the second end of the formed soothing chain, it can be removed during the process of cutting the tensile core wire 5.

[0038] Specifically, the winding fixture 4 has a plurality of first winding posts 41 on one side and a plurality of second winding posts 42 on the other side; the first winding posts 41 and the second winding posts 42 are respectively paired with the two ends of the second cavity 21, and the tensile core wire 5 is wound on the first winding posts 41 and the second winding posts 42.

[0039] As attached Figure 4 , 6 As shown in Figure 7, one end of the soothing chain has a partially exposed tensile core wire 5. The forming cavity, composed of the first cavity 11 and the second cavity 21, corresponds to a set of first winding posts 41 and second winding posts 42. One end of the tensile core wire 5 is fixed on the winding fixture 4. The second end of the tensile core wire 5 passes through the first winding post 41, passes through the forming cavity and is wound around the second winding post 42, then passes back through the forming cavity and is fixed on the first winding post 41, so that the tensile core wire 5 is threaded in the forming cavity (soothing chain) in the form of a double strand.

[0040] Similarly, after the tensile core wire 5 is wound between the first winding post 41 and the second winding post 42 on the winding jig 4, during the second mold closing and forming, the winding jig 4 is loaded onto the lower mold 2 so that the tensile core wire 5 is paired with the second cavity 21.

[0041] Preferably, the winding fixture 4 has a plurality of first winding posts 41 on one side. One end of the tensile core wire 5 can be fixed to the winding fixture 4 or the first winding post 41. The other end of the tensile core wire 5 passes through the forming cavity and is wound around the corresponding second winding post 42. It then returns to the first winding post 41 and winds around once, and then winds around the next first winding post 41. This process is repeated so that the tensile core wire 5 is wound between a plurality of first winding posts 41 and second winding posts 42 in sequence. Of course, the end of the tensile core wire 5 can be fixed to the last first winding post 41 or the winding fixture 4.

[0042] like Figure 7 , 8 As shown, preferably, a number of first winding posts 41 are arranged in a row at intervals, and the first winding post 41 and the last winding post 41 are provided with wire clamping grooves to form wire bundle terminals 46, and the two ends of the tensile core wire 5 are respectively fixed on the corresponding wire bundle terminals 46.

[0043] It is understandable that the structure of the wire harness terminal 46 is basically the same as that of the first winding post 41, the difference being that the wire harness terminal 46 has a wire-holding groove. After the tensile core wire 5 passes through the wire-holding groove on the wire harness terminal 46 (the first first winding post 41), the tensile core wire 5 wraps around the first winding post 41 once, so that one end of the tensile core wire 5 is fixed to the winding fixture 4. Then, the tensile core wire 5 passes through the forming cavity and is wound around the corresponding second winding post 42. The tensile core wire 5 then returns to the wire harness terminal 46 and wraps around again, so that the tensile core wire 5 is inserted into the forming cavity in a double-strand form. Then, the tensile core wire 5 wraps around the next set of first winding posts 41 and second winding posts 42, and so on, until the winding fixture 4 is completely filled. Understandably, the end of the tensile core wire 5 also passes through the wire clamping groove on the wire harness terminal 46 (the first winding post 42 at the end), and the tensile core wire 5 is fixed on the wire harness terminal 46 by winding and knotting.

[0044] Furthermore, the tensile core wires 5 pass over both sides of the first winding post 41 and the second winding post 42, respectively, and the tensile core wires 5 in the form of double strands maintain a reasonable spacing. In particular, the two ends of the tensile core wires 5 are respectively fixed to the wire bundle terminals 46, so that the tensile core wires 5 on the winding fixture 4 are kept in a taut state.

[0045] Further, in order to control the parallelism of the double-strand tensile core wire 5, a plurality of wire fixing blocks 22 are provided on the lower die 2, and the wire fixing blocks 22 are arranged in pairs with the first winding post 41; two wire separating grooves 23 are provided on the wire fixing blocks 22, and the tensile core wire 5 is wound around the first winding post 41 and the second winding post 42 in a double-strand wire manner, and the two strands of the tensile core wire 5 are respectively passed through the corresponding wire separating grooves 23. The double-strand tensile core wire 5 is passed through the two wire separating grooves 23 on the wire fixing block 22, and the wire fixing block 22 and the second winding post 42 cooperate to control the distance between the two ends of the double-strand tensile core wire 5, so that the two strands of the tensile core wire 5 passing through the first cavity 11 and the second cavity 21 are kept parallel, and the problem of the tensile core wire 5 shifting during the mold closing process is prevented.

[0046] The winding jig 4 includes two cross bars 43 and two connecting rods 44. The two ends of the connecting rod 44 are respectively connected to the two cross bars 43 to form a "mouth"-shaped frame structure. The first winding post 41 and the second winding post 42 are respectively arranged on the corresponding cross bars 43; two guiding grooves 24 are provided on the lower die 2, at least two limiting blocks 25 are provided in the guiding grooves 24, and at least two positioning grooves 45 are provided on the cross bars 43. The cross bars 43 are passed through the guiding grooves 24, so that the limiting blocks 25 are arranged in pairs with the positioning grooves 45.

[0047] During the secondary mold closing and forming, the tensile core wire 5 penetrates through both ends of the first cavity 11 and the second cavity 21. Two guiding grooves 24 are opened on the lower die 2, and the two guiding grooves 24 are respectively arranged at intervals with both ends of the second cavity 21. Both ends of the guiding groove 24 penetrate through the two side walls of the lower die 2, so that the cross bar 43 can pass through, and the "mouth"-shaped winding jig can be sleeved on the lower die 2. It can be understood that the cross bar 43 passing through the guiding groove 24 constitutes the position limitation in the length direction of the soothing chain. Further, the positioning groove 45 and the limiting block 25 cooperate to form the position limitation in the width direction of the soothing chain between the winding jig 4 and the lower die 2, and control the arrangement of the tensile core wire 5 along the wire mark, and prevent the tensile core wire 5 from shifting during the mold closing process.

[0048] As Figures 5-6 shown, a processing technology of a soothing chain is as follows: Step 1, take the rubber material for mixing and prepare a film with uniform thickness, and cut the film; the mold is clamped and fixed, the upper die 1, the middle plate 3 and the lower die 2 are respectively installed on the mold press head, and the tensile core wire 5 is wound on the winding jig 4; Step 2, clean and pre-treat the first cavity 11, the second cavity 21 and the middle plate 3. The pre-treatment includes preheating. The middle plate 3 is moved between the upper die 1 and the lower die 2, and the film is placed on the second cavity 21 and the middle plate 3; Step 3, the upper die 1, the middle plate 3 and the lower die 2 are closed for mold, and the film in the first cavity 11 and the second cavity 21 is pre-pressed and formed; Step 4: Open the mold and remove the middle plate 3. Place the winding fixture 4 on the lower mold 2 so that the tensile core wire 5 and the second core wire 32 form a wire groove and are paired. Step 5: The upper mold 1 and the lower mold 2 are closed again, and the film in the first cavity 11 and the second cavity 21 covers the tensile core wire 5 and is vulcanized in one piece. The vulcanization temperature is controlled between 165℃ and 180℃, preferably 175℃; the pressure is controlled between 170 and 190MPa, preferably 180MPa; and the molding time is controlled between 3 and 4 minutes. Step 6: Mold opening, part removal, edge tearing, and other post-processing procedures.

[0049] The pretreatment in step 2 also includes spraying a release agent, which includes sprayed Teflon. The upper and lower surfaces of the middle plate 3 are sprayed with the release agent. After the first molding, spraying the release agent makes the middle plate 3 easier to demold for easy disassembly.

[0050] The above description is only a preferred embodiment of the present invention. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of this patent application are included in the scope of this patent application.

Claims

1. A pacifier chain processing mold, comprising an upper mold (1), a lower mold (2), and a middle plate (3), characterized in that: The upper mold (1) is provided with a plurality of first cavities (11), and the lower mold (2) is provided with a plurality of second cavities (21). The first cavities (11) and the second cavities (21) are arranged in a one-to-one correspondence. When the middle plate (3) is installed between the upper mold (1) and the lower mold (2), the upper mold (1), the middle plate (3) and the lower mold (2) are closed, so that the films in the first cavities (11) and the second cavities (21) are pre-pressed and formed respectively. It also includes a winding fixture (4), on which a plurality of tensile core wires (5) are wound. After the middle plate (3) is removed, the winding fixture (4) can be installed on the lower mold (2). The upper mold (1) and the lower mold (2) are closed, so that the films in the first cavities (11) and the second cavities (21) cover the corresponding tensile core wires (5) and are vulcanized and formed in one piece.

2. The pacification chain processing mold according to claim 1, characterized in that: The upper surface of the middle plate (3) is provided with a plurality of first wire cores (31), and the plurality of first wire cores (31) are paired with the first cavity (11) one by one; the lower surface of the middle plate (3) is provided with a plurality of second wire cores (32), and the plurality of second wire cores (32) are paired with the second cavity (21) one by one.

3. The pacification chain processing mold according to claim 2, characterized in that: The first cavity (11) has a first lead wire groove (12) at both ends, and the first lead wire groove (12) is paired with the two ends of the first wire core (31); the second cavity (21) has a second lead wire groove (26) at both ends, and the second lead wire groove (26) is paired with the two ends of the second wire core (32).

4. The pacification chain processing mold according to claim 3, characterized in that: The diameter of the first wire core (31) and the second wire core (32) is L1, and the diameter of the first lead wire groove (12) and the second lead wire groove (26) is L2. Then L2≤L1≤1.3*L2.

5. The pacification chain processing mold according to claim 1, characterized in that: The winding fixture (4) has a plurality of first winding posts (41) on one side and a plurality of second winding posts (42) on the other side; the first winding posts (41) and the second winding posts (42) are respectively paired with the two ends of the second cavity (21), and the tensile core wire (5) is wound on the first winding posts (41) and the second winding posts (42).

6. The pacification chain processing mold according to claim 5, characterized in that: Several first winding posts (41) are arranged in a row at intervals. The first first winding post (41) and the last first winding post (41) are provided with wire clamping grooves to form wire bundle terminals (46). The two ends of the tensile core wire (5) are respectively fixed on the corresponding wire bundle terminals (46).

7. The pacification chain processing mold according to claim 5, characterized in that: The lower mold (2) is provided with several wire fixing blocks (22), and the wire fixing blocks (22) are paired with the first winding post (41). The wire fixing blocks (22) are provided with two wire dividing grooves (23). The tensile core wires (5) are wound on the first winding post (41) and the second winding post (42) in a double-strand manner, and the two tensile core wires (5) are respectively passed through the corresponding wire dividing grooves (23).

8. The pacification chain processing mold according to claim 5, characterized in that: The winding fixture (4) includes two cross bars (43) and two connecting rods (44). The two ends of the connecting rod (44) are respectively connected to the two cross bars (43) to form a "mouth"-shaped frame structure. The first winding post (41) and the second winding post (42) are respectively arranged on the corresponding cross bars (43). Two guiding grooves (24) are provided on the lower die (2), and at least two limiting blocks (25) are arranged in the guiding grooves (24). At least two positioning grooves (45) are provided on the cross bar (43). The cross bar (43) is inserted into the guiding groove (24) so that the limiting blocks (25) and the positioning grooves (45) are arranged in pairs.

9. A processing technology for a soothing chain, the steps are as follows: Step 1, take rubber material for mixing and prepare a film with uniform thickness, and cut the film; clamp and fix the mold, install the upper die (1), the middle plate (3) and the lower die (2) on the die pressing head respectively, and wind the tensile core wire (5) on the winding fixture (4). Step 2, clean and preprocess the first cavity (11), the second cavity (21) and the middle plate (3). The preprocessing includes preheating. The middle plate (3) moves between the upper die (1) and the lower die (2), and place the film on the second cavity (21) and the middle plate (3). Step 3, the upper die (1), the middle plate (3) and the lower die (2) are closed, and the film in the first cavity (11) and the second cavity (21) is pre-pressed into shape. Step 4, open the die and take out the middle plate (3), place the winding fixture (4) on the lower die (2), and make the tensile core wire (5) and the second core wire (32) form a wire groove in a paired arrangement. Step 5, the upper die (1) and the lower die (2) are closed again, and the film in the first cavity (11) and the second cavity (21) wraps the tensile core wire (5) and is integrally vulcanized into shape. Step 6, open the die to take out the parts, and perform post-treatment processes such as trimming the edges.

10. The processing technology for the soothing chain according to claim 9, characterized in that: The preprocessing in Step 2 further includes spraying a release agent. The release agent includes spraying iron fluoride. The upper and lower surfaces of the middle plate (3) are both sprayed with the release agent.

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