A hot press forming die for chain tooth rubber

Abstract

The utility model discloses a kind of hot-press forming moulds of chain teeth rubber, including female mould, male mould buckled on female mould and the core mould being arranged between female mould, male mould, first installation groove and second installation groove are set in the middle part of female mould top surface, the core mould includes symmetrically distributed first forming block and second forming block, the bottom surface of male mould is set with adjacent third installation groove and fourth installation groove, first bevel, third bevel, sixth bevel and eighth bevel are formed with first ring cavity between, second bevel, fifth bevel, fourth bevel and seventh bevel are formed with second ring cavity between, first ring cavity and second ring cavity are cross-shaped. The utility model can make the first ring buckle and the second ring buckle directly cross-buckle state, without subsequent buckling operation, and production efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of hot pressing molding technology, specifically a hot pressing molding mold for chain teeth. Background Technology

[0002] A mold is a tool used to create models, shaping raw materials into products of a specific shape and size under the action of external force. It primarily achieves the shaping of objects by altering the physical state of the material being molded, and is often referred to as the "mother of industry." Hot press molds typically require the use of hot press equipment. The hot press equipment compresses the raw material onto the mold, shaping it into its final form.

[0003] Teethers (also called teething toys or teething rings) are products used by teething infants and toddlers to exercise their teeth, massage their gums, and relieve teething pain. They are typically made of silicone and are also commonly used by pets such as dogs for teething. Buckles are a traditional type of teething toy. With market development, chain-type teething toys, which evolved from buckles, have become more versatile, suitable for children and animals to use for teething, and can also be used as dog leashes. Chain-type teething toys consist of several buckles linked together. The traditional production method for chain-type teething toys involves first manufacturing the buckles separately using a mold, and then attaching the manufactured buckles together sequentially. However, this results in numerous manufacturing steps and low production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a hot-press molding die for chain teethers, which enables the first and second ring buckles to be directly interlocked without subsequent interlocking operations, thus improving production efficiency and solving the problem of unsatisfactory production efficiency of existing chain teethers mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A thermoforming mold for chain teethers includes a female mold, a male mold fastened to the female mold, and a core mold disposed between the female mold and the male mold. The female mold has an adjacent first mounting groove and a second mounting groove in the center of its top surface. The sidewall of the first mounting groove near the second mounting groove is an inclined first slope, and the sidewall of the second mounting groove near the first mounting groove is an inclined second slope. The core mold includes symmetrically distributed first molding blocks and second molding blocks. The lower part of the sidewall of the first molding block has a third slope that mates with the first slope, and the upper part of the sidewall of the first molding block has a fourth slope. The second molding block... The lower part of the wall is provided with a fifth inclined surface that matches the second inclined surface, and the upper part of the side wall of the second molding block is provided with a sixth inclined surface. The bottom surface of the male mold is provided with an adjacent third mounting groove and a fourth mounting groove. The side wall of the third mounting groove near the fourth mounting groove is a seventh inclined surface that matches the fourth inclined surface, and the side wall of the fourth mounting groove near the third mounting groove is an eighth inclined surface that matches the sixth inclined surface. A first annular cavity is formed between the first inclined surface, the third inclined surface, the sixth inclined surface, and the eighth inclined surface, and a second annular cavity is formed between the second inclined surface, the fifth inclined surface, the fourth inclined surface, and the seventh inclined surface. The first annular cavity and the second annular cavity are intersecting.

[0007] Preferably, the first inclined surface is provided with a plurality of first C-shaped grooves at intervals, the second inclined surface is provided with a plurality of second C-shaped grooves at intervals, and the first C-shaped grooves and second C-shaped grooves are staggered; the third inclined surface is provided with a plurality of third C-shaped grooves that mate with the first C-shaped grooves at intervals, the fourth inclined surface is provided with a plurality of fourth C-shaped grooves at intervals, and the third C-shaped grooves and fourth C-shaped grooves are staggered; the fifth inclined surface is provided with a plurality of fifth C-shaped grooves that mate with the second C-shaped grooves at intervals, the sixth inclined surface is provided with a plurality of sixth C-shaped grooves at intervals, and the fifth C-shaped grooves and sixth C-shaped grooves are staggered; the seventh inclined surface is provided with a plurality of seventh C-shaped grooves that mate with the fourth C-shaped grooves at intervals, and the eighth inclined surface is provided with a plurality of eighth C-shaped grooves that mate with the sixth C-shaped grooves at intervals, and the seventh C-shaped grooves and eighth C-shaped grooves are staggered.

[0008] Preferably, the first C-shaped groove and the third C-shaped groove cooperate to form the lower half of the first annular cavity, the two ends of the first C-shaped groove extend to the second inclined surface and connect with the sixth C-shaped groove that extends to the fifth inclined surface; the two ends of the third C-shaped groove extend to the fourth inclined surface and connect with the eighth C-shaped groove that extends to the seventh inclined surface, and the sixth C-shaped groove and the eighth C-shaped groove cooperate to form the upper half of the first annular cavity.

[0009] Preferably, the second C-groove and the fifth C-groove cooperate to form the lower half of the second annular cavity. The two ends of the second C-groove extend to the first inclined surface and connect with the fourth C-groove that extends to the third inclined surface. The two ends of the fifth C-groove extend to the sixth inclined surface and connect with the seventh C-groove that extends to the eighth inclined surface. The fourth C-groove and the seventh C-groove cooperate to form the upper half of the second annular cavity.

[0010] Preferably, the first molding block is embedded in the first mounting groove, and the second molding block is embedded in the second mounting groove; a V-shaped groove is formed between the fourth inclined surface and the sixth inclined surface, and the seventh inclined surface and the eighth inclined surface cooperate to form a V-shaped protrusion that cooperates with the V-shaped groove.

[0011] Preferably, the fourth inclined surface forms an upwardly extending first clamping portion at each end, the sixth inclined surface forms an upwardly extending second clamping portion at each end, and a clearance groove is formed between the first clamping portion, the second clamping portion and the side of the mold.

[0012] Preferably, both ends of the first and second mounting grooves are provided with pry holes.

[0013] Preferably, the bottom walls of both the first mounting groove and the second mounting groove are provided with a first positioning block, and the bottom walls of both the first molding block and the second molding block are provided with a first positioning groove adapted to the first positioning block.

[0014] Preferably, the female mold has a second positioning groove at each of the four corners of its top surface, and the male mold has a second positioning block protruding downward at each of the four corners of its bottom surface, with the second positioning block inserted into the second positioning groove.

[0015] Preferably, the bottom walls of the first and second mounting slots are provided with first positioning holes, the bottom walls of the third and fourth mounting slots are provided with second positioning holes, and the first and second molding blocks are each provided with a third positioning hole that penetrates their upper and lower surfaces and is coaxial with the first and second positioning holes.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the seventh inclined surface cooperates with the fourth inclined surface to press the half-ring buckle of the upper half of the second ring, and the eighth inclined surface cooperates with the sixth inclined surface to press the half-ring buckle of the upper half of the first ring cavity; after the hot pressing is completed, the first ring buckle can be formed in the first ring cavity by hot pressing, and the second ring buckle is formed in the second ring cavity by hot pressing. The first ring buckle and the second ring buckle are in a cross-interlocking state, which eliminates the need for subsequent interlocking operations and improves production efficiency. Attached Figure Description

[0017] Figure 1 This is a perspective view of a hot-press molding die for a chain teether according to this utility model.

[0018] Figure 2 This is a perspective view of another angle of the thermoforming mold for a chain teether according to this utility model.

[0019] Figure 3 This is an exploded view of a hot-press molding die for a chain teether according to this utility model.

[0020] Figure 4 This is a perspective view of the first and second ring buckles of this utility model after they have been formed in the mold.

[0021] Figure 5 This is a schematic diagram of the structure of the first annular cavity and the second annular cavity of this utility model.

[0022] Figure 6 This is an exploded view of a partial structure of a hot-press molding die for a chain teether according to this utility model.

[0023] Figure 7 This is a perspective view of the first molding block of this utility model.

[0024] Figure 8 This is a perspective view of the second molding block of this utility model.

[0025] Figure 9 This is a perspective view of the public mold of this utility model.

[0026] Figure 10 This is a schematic diagram of the cross-shaped first and second ring buckles of this utility model.

[0027] In the diagram: 100, Female mold; 101, First mounting groove; 102, Second mounting groove; 103, First inclined surface; 104, Second inclined surface; 105, First C-groove; 106, Second C-groove; 107, First positioning block; 108, Second positioning groove; 109, First positioning hole; 110, Fourth positioning hole; 111, Prying mold opening; 200, Male mold; 201, Third mounting groove; 202, Fourth mounting groove; 203, Seventh inclined surface; 204, Eighth inclined surface; 205, Seventh C-groove; 206, Eighth C-groove; 207, Second positioning block; 20 8. Second positioning hole; 209. Fifth positioning hole; 300. Core mold; 301. First molding block; 302. Second molding block; 303. Third inclined surface; 304. Fourth inclined surface; 305. Fifth inclined surface; 306. Sixth inclined surface; 307. Third C-groove; 308. Fourth C-groove; 309. Fifth C-groove; 310. Sixth C-groove; 311. First positioning groove; 312. Third positioning hole; 313. First clamping part; 314. Second clamping part; 400. First annular cavity; 500. Second annular cavity; 600. Semi-ring buckle; 700. Clearance groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-4A thermoforming mold for a chain teether includes a female mold 100, a male mold 200 fastened to the female mold 100, and a core mold 300 disposed between the female mold 100 and the male mold 200. (See also...) Figure 6 The top surface of the mother mold 100 is provided with an adjacent first mounting groove 101 and a second mounting groove 102. The side wall of the first mounting groove 101 near the second mounting groove 102 is an inclined first slope 103, and the side wall of the second mounting groove 102 near the first mounting groove 101 is an inclined second slope 104.

[0030] The core mold 300 includes a first molding block 301 and a second molding block 302 that are symmetrically distributed. Please refer to [link / reference]. Figure 7-8 The lower part of the side wall of the first molding block 301 is provided with a third inclined surface 303 that matches the first inclined surface 103, the upper part of the side wall of the first molding block 301 is provided with a fourth inclined surface 304, the lower part of the side wall of the second molding block 302 is provided with a fifth inclined surface 305 that matches the second inclined surface 104, and the upper part of the side wall of the second molding block 302 is provided with a sixth inclined surface 306.

[0031] Please see Figure 9 The bottom surface of the male mold 200 has adjacent third mounting grooves 201 and fourth mounting grooves 202. The side wall of the third mounting groove 201 near the fourth mounting groove 202 is a seventh inclined surface 203 that adapts to the fourth inclined surface 304. The side wall of the fourth mounting groove 202 near the third mounting groove 201 is an eighth inclined surface 204 that adapts to the sixth inclined surface 306. Please refer to [link / reference]. Figure 5-9 A first annular cavity 400 is formed between the first inclined surface 103, the third inclined surface 303, the sixth inclined surface 306 and the eighth inclined surface 204, and a second annular cavity 500 is formed between the second inclined surface 104, the fifth inclined surface 305, the fourth inclined surface 304 and the seventh inclined surface 203. The first annular cavity 400 and the second annular cavity 500 are intersecting.

[0032] In this embodiment, please refer to Figure 10 The raw material for hot pressing is a C-shaped semi-ring 600. Please refer to [link / reference]. Figure 5 Before hot pressing, the semi-ring buckle 600 is placed on the lower half of the first ring cavity 400 and the lower half of the second ring cavity 500, that is, on the first inclined surface 103 and the second inclined surface 104; please refer to Figure 3 Then, the first molding block 301 is embedded into the first mounting groove 101 and the second molding block 302 is embedded into the second mounting groove 102, so that the third inclined surface 303 cooperates with the first inclined surface 103 to press the half-ring buckle 600 of the lower half of the first annular cavity 400, and the fifth inclined surface 305 cooperates with the second inclined surface 104 to press the half-ring buckle 600 of the lower half of the second annular cavity 500; then, the half-ring buckle 600 is placed in the upper half of the first annular cavity 400 and the upper half of the second annular cavity 500. Please refer to [link to relevant documentation]. Figure 1Finally, the male mold 200 is pressed down, causing the seventh inclined surface 203 to engage with the fourth inclined surface 304 to press the semi-ring buckle 600 of the upper half of the second annular cavity 500, and the eighth inclined surface 204 to engage with the sixth inclined surface 306 to press the semi-ring buckle 600 of the upper half of the first annular cavity 400; after the hot pressing is completed, please refer to Figure 3 The first ring buckle can be formed by hot pressing two half-ring buckles 600 in the first ring cavity 400, and the second ring buckle can be formed by hot pressing two half-ring buckles 600 in the second ring cavity 500. The first ring buckle and the second ring buckle are in a cross-interlocking state, and no subsequent interlocking operation is required, resulting in high production efficiency.

[0033] Please see Figure 3 The first molding block 301 is embedded in the first mounting groove 101, and the second molding block 302 is embedded in the second mounting groove 102; a V-shaped groove is formed between the fourth inclined surface 304 and the sixth inclined surface 306, and the seventh inclined surface 203 and the eighth inclined surface 204 cooperate to form a V-shaped protrusion that cooperates with the V-shaped groove. Please refer to [link / reference]. Figure 2 The fourth inclined surface 304 forms an upwardly extending first clamping portion 313 at both ends, and the sixth inclined surface 306 forms an upwardly extending second clamping portion 314 at both ends. An avoidance groove 700 is formed between the first clamping portion 313, the second clamping portion 314 and the side of the male mold 200 to facilitate mold processing, so that the male mold 200 will not interfere with the first molding block 301 and the second molding block 302 when it is pressed down to form.

[0034] Please see Figure 6-9 The first inclined surface 103 is provided with a plurality of first C-shaped grooves 105 at intervals; the second inclined surface 104 is provided with a plurality of second C-shaped grooves 106 at intervals, with the first C-shaped grooves 105 and the second C-shaped grooves 106 being staggered; the third inclined surface 303 is provided with a plurality of third C-shaped grooves 307 at intervals that mate with the first C-shaped grooves 105; the fourth inclined surface 304 is provided with a plurality of fourth C-shaped grooves 308 at intervals, with the third C-shaped grooves 307 and the fourth C-shaped grooves 308 being staggered; the fifth inclined surface 305 is provided with a plurality of first C-shaped grooves 105 at intervals. There are several fifth C-shaped grooves 309 that mate with the second C-shaped groove 106; several sixth C-shaped grooves 310 are spaced apart on the sixth inclined surface 306; the fifth C-shaped grooves 309 and the sixth C-shaped grooves 310 are staggered; several seventh C-shaped grooves 205 that mate with the fourth C-shaped groove 308 are spaced apart on the seventh inclined surface 203; several eighth C-shaped grooves 206 that mate with the sixth C-shaped groove 310 are spaced apart on the eighth inclined surface 204; the seventh C-shaped grooves 205 and the eighth C-shaped grooves 206 are staggered.

[0035] Please refer to Figure 5-6 The first C-groove 105 and the third C-groove 307 cooperate to form the lower half of the first annular cavity 400. Please refer to [link / reference]. Figure 6-9The first C-shaped groove 105 extends through both ends to the second inclined surface 104 and connects with the sixth C-shaped groove 310 that extends through the fifth inclined surface 305; the third C-shaped groove 307 extends through both ends to the fourth inclined surface 304 and connects with the eighth C-shaped groove 206 that extends through the seventh inclined surface 203. The sixth C-shaped groove 310 and the eighth C-shaped groove 206 cooperate to form the upper half of the first annular cavity 400.

[0036] Please refer to Figure 5-6 The second C-groove 106 and the fifth C-groove 309 cooperate to form the lower half of the second annular cavity 500. Please refer to [link / reference]. Figure 6-9 The two ends of the second C-shaped groove 106 extend to the first inclined surface 103 and are connected to the fourth C-shaped groove 308 that extends to the third inclined surface 303. The two ends of the fifth C-shaped groove 309 extend to the sixth inclined surface 306 and are connected to the seventh C-shaped groove 205 that extends to the eighth inclined surface 204. The fourth C-shaped groove 308 and the seventh C-shaped groove 205 cooperate to form the upper half of the second annular cavity 500.

[0037] Please see Figure 6-8 The bottom walls of the first mounting groove 101 and the second mounting groove 102 are each provided with a first positioning block 107, and the bottom walls of the first molding block 301 and the second molding block 302 are each provided with a first positioning groove 311 that is adapted to the first positioning block 107. Through the cooperation of the first positioning block 107 and the first positioning groove 311, the first molding block 301 is quickly and accurately installed in the first mounting groove 101, and the second molding block 302 is quickly and accurately installed in the second mounting groove 102, thereby improving production efficiency.

[0038] Please see Figure 6 The female mold 100 has two second positioning grooves 108 at the four corners of its top surface, and the male mold 200 has two downwardly protruding second positioning blocks 207 at the four corners of its bottom surface. The second positioning blocks 207 are inserted into the second positioning grooves 108 and have a positioning function. Through the cooperation of the second positioning blocks 207 and the second positioning grooves 108, the male mold 200 can quickly and accurately close with the female mold 100, thereby improving production efficiency.

[0039] Please see Figure 6 as well as Figure 9The bottom walls of the first mounting groove 101 and the second mounting groove 102 are each provided with a first positioning hole 109, and the bottom walls of the third mounting groove 201 and the fourth mounting groove 202 are each provided with a second positioning hole 208. The first molding block 301 and the second molding block 302 each have a third positioning hole 312 that penetrates their top and bottom surfaces and is coaxial with the first positioning hole 109 and the second positioning hole 208. A first guide shaft (not shown in the figure) is inserted into the first positioning hole 109, the second positioning hole 208, and the third positioning hole 312. The first guide shaft guides the first molding block 301 and the second molding block 302 to be installed accurately, and also guides the male mold 200 and the female mold 100 to close accurately and stably.

[0040] Please see Figure 6 as well as Figure 9 The female mold 100 has a fourth positioning hole 110 at each of the four corners of its top surface, and the male mold 200 has a fifth positioning hole 209 at each of the four corners of its bottom surface, which is coaxial with the fourth positioning hole 110. A second guide shaft is inserted into the fourth positioning hole 110 and the fifth positioning hole 209. The second guide shaft cooperates with the first guide shaft to guide the male mold 200 and the female mold 100 to close accurately.

[0041] Please see Figure 1 as well as Figure 4 Both ends of the first mounting groove 101 and the second mounting groove 102 are provided with prying holes 111. When the first molding block 301 and / or the second molding block 302 are embedded too tightly, the first molding block 301 can be pried out of the first mounting groove 101 through the prying holes 111, and the second molding block 302 can be pried out of the second mounting groove 102 through the prying holes 111. This avoids delaying the production progress due to the first molding block 301 and the second molding block 302 being stuck, and has the effect of improving production efficiency.

[0042] The working principle of the hot pressing molding die for chain teethers of this utility model is as follows: Please refer to... Figure 5 Before hot pressing, place the semi-ring buckle 600 in the first C-groove 105 and the second C-groove 106; please refer to Figure 3 Then, the first molding block 301 is embedded into the first mounting groove 101 and the second molding block 302 is embedded into the second mounting groove 102, so that the third C-groove 307 cooperates with the first C-groove 105 to press the half-ring buckle 600 of the lower half of the first annular cavity 400, and the fifth C-groove 309 cooperates with the second C-groove 106 to press the half-ring buckle 600 of the lower half of the second annular cavity 500; then, the half-ring buckle 600 is placed in the fourth C-groove 308 and the sixth C-groove 310, please refer to Figure 1Finally, the male mold 200 presses down on the female mold 100, causing the eighth C-groove 206 and the sixth C-groove 310 to engage and press the upper half of the first annular cavity 400's semi-ring buckle 600. The seventh C-groove 205 engages with the fourth C-groove 308 to press the upper half of the second annular cavity's semi-ring buckle 600. After the hot pressing is completed, the two semi-ring buckles 600 in the upper and lower halves of the first annular cavity 400 are hot-melted and hot-pressed to form the first annular buckle. The two semi-ring buckles 600 in the upper and lower halves of the second annular cavity 500 are hot-melted and hot-pressed to form the second annular buckle. The first and second annular buckles are in a cross-interlocking state. Please refer to [link / reference]. Figure 3-4 Then, the male mold 200 moves upward, removes the first molding block 301 from the first mounting groove 101, and removes the second molding block 302 from the second mounting groove 102, so that the chain teeth formed by the first ring buckle and the second ring buckle can be removed from the female mold 100.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thermoforming mold for chain teething rubber, comprising a female mold (100), a male mold (200) fastened to the female mold (100), and a core mold (300) disposed between the female mold (100) and the male mold (200), characterized in that: The top surface of the master mold (100) is provided with an adjacent first mounting groove (101) and a second mounting groove (102). The side wall of the first mounting groove (101) near the second mounting groove (102) is an inclined first slope (103), and the side wall of the second mounting groove (102) near the first mounting groove (101) is an inclined second slope (104). The core mold (300) includes a symmetrically distributed first molding block (301) and a second molding block (302). The lower part of the side wall of the first molding block (301) is provided with a third slope (303) that matches the first slope (103). The upper part of the side wall of the first molding block (301) is provided with a fourth slope (304). The lower part of the side wall of the second molding block (302) is provided with a fifth slope (305) that matches the second slope (104). The upper part of the side wall of the second molding block (302) is provided with a fifth slope (305). There is a sixth inclined surface (306). The bottom surface of the male mold (200) is provided with an adjacent third mounting groove (201) and a fourth mounting groove (202). The side wall of the third mounting groove (201) near the fourth mounting groove (202) is a seventh inclined surface (203) adapted to the fourth inclined surface (304). The side wall of the fourth mounting groove (202) near the third mounting groove (201) is an eighth inclined surface (204) adapted to the sixth inclined surface (306). A first annular cavity (400) is formed between the first inclined surface (103), the third inclined surface (303), the sixth inclined surface (306) and the eighth inclined surface (204). A second annular cavity (500) is formed between the second inclined surface (104), the fifth inclined surface (305), the fourth inclined surface (304) and the seventh inclined surface (203). The first annular cavity (400) and the second annular cavity (500) are intersecting.

2. The hot pressing mold for chain teething according to claim 1, characterized in that: The first inclined surface (103) is provided with a plurality of first C-shaped grooves (105) at intervals, the second inclined surface (104) is provided with a plurality of second C-shaped grooves (106) at intervals, and the first C-shaped grooves (105) and the second C-shaped grooves (106) are staggered; the third inclined surface (303) is provided with a plurality of third C-shaped grooves (307) at intervals that cooperate with the first C-shaped grooves (105), the fourth inclined surface (304) is provided with a plurality of fourth C-shaped grooves (308) at intervals, and the third C-shaped grooves (307) and the fourth C-shaped grooves (308) are staggered; the fifth inclined surface (305) is provided with a plurality of first C-shaped grooves (105) at intervals. There are several fifth C-shaped grooves (309) that mate with the second C-shaped groove (106), and several sixth C-shaped grooves (310) are spaced apart on the sixth inclined surface (306). The fifth C-shaped grooves (309) and the sixth C-shaped grooves (310) are staggered. Several seventh C-shaped grooves (205) that mate with the fourth C-shaped groove (308) are spaced apart on the seventh inclined surface (203), and several eighth C-shaped grooves (206) that mate with the sixth C-shaped groove (310) are spaced apart on the eighth inclined surface (204). The seventh C-shaped grooves (205) and the eighth C-shaped grooves (206) are staggered.

3. The hot pressing mold for chain teething according to claim 2, characterized in that: The first C-groove (105) and the third C-groove (307) cooperate to form the lower half of the first annular cavity (400). The two ends of the first C-groove (105) extend to the second inclined surface (104) and connect with the sixth C-groove (310) that extends to the fifth inclined surface (305). The two ends of the third C-groove (307) extend to the fourth inclined surface (304) and connect with the eighth C-groove (206) that extends to the seventh inclined surface (203). The sixth C-groove (310) and the eighth C-groove (206) cooperate to form the upper half of the first annular cavity (400).

4. The hot pressing mold for chain teething according to claim 2, characterized in that: The second C-groove (106) and the fifth C-groove (309) cooperate to form the lower half of the second annular cavity (500). The two ends of the second C-groove (106) extend to the first inclined surface (103) and connect with the fourth C-groove (308) that extends to the third inclined surface (303). The two ends of the fifth C-groove (309) extend to the sixth inclined surface (306) and connect with the seventh C-groove (205) that extends to the eighth inclined surface (204). The fourth C-groove (308) and the seventh C-groove (205) cooperate to form the upper half of the second annular cavity (500).

5. The hot pressing mold for chain teething according to claim 1, characterized in that: The first molding block (301) is embedded in the first mounting groove (101), and the second molding block (302) is embedded in the second mounting groove (102); a V-shaped groove is formed between the fourth inclined surface (304) and the sixth inclined surface (306), and the seventh inclined surface (203) and the eighth inclined surface (204) cooperate to form a V-shaped protrusion that cooperates with the V-shaped groove.

6. The hot pressing mold for chain teething according to claim 5, characterized in that: The fourth inclined surface (304) forms an upwardly extending first clamping part (313) at both ends, and the sixth inclined surface (306) forms an upwardly extending second clamping part (314) at both ends. A clearance groove (700) is formed between the first clamping part (313), the second clamping part (314) and the side of the mold (200).

7. The hot pressing mold for chain teething according to claim 1, characterized in that: Both ends of the first mounting groove (101) and the second mounting groove (102) are provided with pry holes (111).

8. The hot pressing mold for chain teething according to claim 1, characterized in that: The bottom walls of the first mounting groove (101) and the second mounting groove (102) are provided with a first positioning block (107), and the bottom walls of the first molding block (301) and the second molding block (302) are provided with a first positioning groove (311) adapted to the first positioning block (107).

9. The hot pressing mold for chain teething according to claim 1, characterized in that: The female mold (100) has a second positioning groove (108) at each of the four corners of its top surface, and the male mold (200) has a second positioning block (207) protruding downward at each of the four corners of its bottom surface. The second positioning block (207) is inserted into the second positioning groove (108).

10. The hot pressing mold for chain teething according to claim 1, characterized in that: The bottom walls of the first mounting groove (101) and the second mounting groove (102) are provided with first positioning holes (109), and the bottom walls of the third mounting groove (201) and the fourth mounting groove (202) are provided with second positioning holes (208). The first molding block (301) and the second molding block (302) are provided with third positioning holes (312) that penetrate their upper and lower surfaces and are coaxial with the first positioning hole (109) and the second positioning hole (208).

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