Water polo rubber ring forming die and tool

Abstract

The utility model provides a water polo rubber ring forming die and tool. The water polo rubber ring forming die comprises an upper hot-pressing die and a lower hot-pressing die, the hot-pressing upper die is arranged above the hot-pressing lower die in a lifting manner; a plurality of adhesive tape placing areas are divided on the hot-pressing lower die; a plurality of rubber ring forming grooves are formed in each rubber strip placing area at intervals; a plurality of preset positions are arranged in each rubber ring forming groove and are distributed at intervals along the extending path of the rubber ring forming groove; a plurality of thermal matching parts are arranged on the hot-pressing upper die, each thermal matching part corresponds to one rubber ring forming groove in position, the thermal matching parts of the hot-pressing upper die are matched with the corresponding rubber ring forming grooves, the thermal matching parts of the hot-pressing upper die are used for hot-pressing plastic rubber strips, and the plastic rubber strips are softened after being heated and enter the rubber ring forming grooves; the softened plastic rubber strip wraps the magnetic material block, meanwhile, the plastic rubber strip is formed into the rubber ring through the rubber ring forming groove, after the rubber ring is cooled, the magnetic material block is firmly installed in the rubber ring, and batch production of the water ball rubber ring can be achieved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of toy water ball production, and in particular to a water ball rubber ring forming mold and tooling. Background Art

[0002] Chinese patent document CN221637331U discloses a toy water ball. By installing a magnetic attraction part on the annular edge, the petals can be engaged by magnetic attraction, and at the same time the petals can overcome the magnetic attraction and open. By setting the magnetic attraction part, the toy water ball can be closed or opened repeatedly, making the toy water ball reusable and environmentally friendly and clean.

[0003] However, in order to ensure that the petal body can be more securely fitted with the magnetic parts on the annular edge, it is usually necessary to install multiple magnetic parts at intervals in the rubber ring on the annular edge. The magnetic parts are obtained by magnetizing magnetic blocks such as iron, cobalt, nickel, etc. The existing magnetic blocks are installed manually. Due to the instability of manual installation, it is difficult to ensure that each magnetic block is installed in place. For example, it is easy to have deviations in the number and position of magnetic blocks installed, which makes it difficult to mass-produce water ball rubber rings. Utility Model Content

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a water polo rubber ring forming mold and tooling that can produce water polo rubber rings in batches and quickly.

[0005] The purpose of this disclosure is achieved through the following technical solutions:

[0006] A water ball rubber ring forming mold, comprising a hot pressing upper mold and a hot pressing lower mold, wherein the hot pressing upper mold is arranged above the hot pressing lower mold;

[0007] The hot pressing lower mold is divided into multiple rubber strip placement areas, and the rubber strip placement areas are used to place plastic rubber strips; multiple rubber ring forming grooves are arranged at intervals in each of the rubber strip placement areas; multiple preset positions are set in each of the rubber ring forming grooves, and the multiple preset positions are distributed at intervals along the extension path of the rubber ring forming groove, and the preset positions are used to place magnetic material blocks; the hot pressing upper mold is provided with multiple heat-fitting parts, and each of the heat-fitting parts corresponds to the position of one of the rubber ring forming grooves; the heat-fitting parts cooperate with the corresponding rubber ring forming grooves to hot-press the plastic rubber strips in the corresponding rubber ring forming grooves to form water ball rubber rings.

[0008] In one embodiment, a pad is protruded from the bottom of the rubber ring forming groove at each preset position, and the pad is used to place a magnetic material block.

[0009] In one embodiment, the number of the pads on each preset position is two, and each pad is used to abut the end of the magnetic material block; a glue seepage gap is formed between the two pads on the same preset position, and the glue seepage gap is used to separate the magnetic material block and the bottom of the rubber ring forming groove.

[0010] In one embodiment, the bottom of the rubber ring forming groove is provided with a plurality of limit blocks at each preset position; the plurality of limit blocks are spaced apart and together form a slot; the slot is used to place the magnetic material block.

[0011] In one embodiment, each of the limiting blocks forms a material placement step on the bottom of the corresponding slot, and the material placement step is used to abut against the magnetic material block to separate the magnetic material block from the bottom of the slot.

[0012] In one embodiment, the rubber ring forming groove includes a first annular groove, a connecting groove and a second annular groove that are connected in sequence, and a plurality of the preset positions are respectively spaced apart in the first annular groove and the second annular groove.

[0013] In one embodiment, the preset positions in the first annular groove are evenly spaced; and / or,

[0014] The preset positions in the second annular groove are evenly spaced apart.

[0015] In one embodiment, the bottom of the connecting groove is recessed into the hot pressing lower die to form an arc surface; the hot pressing upper die is provided with a pressing block protruding on the thermal fitting portion, and the pressing block is matched with the connecting groove.

[0016] In one embodiment, a plurality of the rubber ring forming grooves in the same rubber strip placement area are arranged side by side to be distributed along the length direction of the plastic rubber strip.

[0017] A water polo rubber ring forming tool comprises the water polo rubber ring forming mold of any one of the above embodiments.

[0018] Compared with the prior art, the present disclosure has at least the following advantages:

[0019] 1) By placing the plastic rubber strip on the rubber strip placement area, since a plurality of rubber ring forming grooves are spaced apart in each rubber strip placement area, and a plurality of preset positions are spaced apart in each rubber ring forming groove, a large number of magnetic blocks can be placed in a plurality of rubber ring forming grooves by placing a magnetic block on each preset position, so that the operator can intuitively judge whether the number of magnetic blocks is accurate according to whether the magnetic blocks are placed on the preset positions, so as to reduce the occurrence of deviation in the number of magnetic blocks installed. At the same time, the position of the magnetic blocks on the preset positions is accurate, thereby reducing the deviation in the installation position of the magnetic blocks.

[0020] 2) Because each heat-fitting part on the hot pressing upper mold corresponds to a rubber ring forming groove position, when the heat-fitting part cooperates with the corresponding rubber ring forming groove, the heat-fitting part of the hot pressing upper mold will heat-press the plastic strip. The plastic strip softens after being heated and enters the rubber ring forming groove. The softened plastic strip covers the magnetic material block. At the same time, the plastic strip is formed into a rubber ring by the rubber ring forming groove. After the rubber ring cools down, the magnetic material block is firmly installed in the rubber ring, so that it can be removed from the preset position with the rubber ring, and finally realize the mass production of water polo rubber rings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a structural schematic diagram of a water polo rubber ring forming mold according to an embodiment of the present disclosure;

[0023] Figure 2 for Figure 1 A partial enlarged view shown in the middle;

[0024] Figure 3 for Figure 1 The schematic diagram of the partial state of the water ball rubber ring forming mold hot pressing the water ball rubber ring shown;

[0025] Figure 4 for Figure 1 The water polo rubber ring forming mold shown is a partial cross-sectional structural diagram of a water polo rubber ring formed.

[0026] Figure numerals: 10, water ball rubber ring forming mold; 100, hot pressing upper mold; 120, pressing block; 200, hot pressing lower mold; 210, rubber strip placement area; 2110, rubber ring forming groove; 2111, preset position; 2112, pad; 211a, glue penetration gap; 2113, limit block; 211b, card slot; 21a, first annular groove; 21b, connecting groove; 21c, second annular groove; 20, plastic rubber strip; 30, magnetic material block; 40, rubber ring. DETAILED DESCRIPTION

[0027] To facilitate understanding of the present disclosure, a more comprehensive description of the present disclosure will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present disclosure. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. The terms used herein in the specification of this disclosure are intended only to describe specific embodiments and are not intended to limit this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] In order to better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure is further described in detail below with reference to specific embodiments:

[0031] like Figure 1 and Figure 2As shown, a water ball rubber ring forming mold 10 of an embodiment includes a hot pressing upper mold 100 and a hot pressing lower mold 200; the hot pressing upper mold 100 is set to be raised and lowered above the hot pressing lower mold 200; the hot pressing lower mold 200 is divided into a plurality of rubber strip placement areas 210, and the rubber strip placement areas 210 are used to place plastic rubber strips 20; a plurality of rubber ring forming grooves 2110 are arranged at intervals in each rubber strip placement area 210; a plurality of preset positions 2111 are set in each rubber ring forming groove 2110, and the plurality of preset positions 2111 are distributed at intervals along the extension path of the rubber ring forming groove 2110, and the preset positions 2111 are used to place magnetic material blocks 30; a plurality of heat-fitting parts are provided on the hot pressing upper mold 100, and each heat-fitting part corresponds to a position of a rubber ring forming groove 2110 respectively; the heat-fitting part cooperates with the corresponding rubber ring forming groove 2110 to hot-press the plastic rubber strip 20 into the corresponding rubber ring forming groove 2110 to form a water ball rubber ring.

[0032] It can be understood that by placing the plastic strip 20 on the strip placement area 210, since a plurality of rubber ring forming grooves 2110 are spaced apart in each strip placement area 210, and a plurality of preset positions 2111 are spaced apart in each rubber ring forming groove 2110, a large number of magnetic blocks 30 can be placed in a plurality of rubber ring forming grooves 2110 respectively by placing a magnetic block 30 on each preset position 2111, so that the operator can intuitively judge whether the number of magnetic blocks 30 is accurate based on whether the magnetic blocks 30 are placed on the preset positions 2111, so as to reduce the occurrence of deviation in the number of magnetic blocks 30 installed. At the same time, the position of the magnetic blocks 30 on the preset positions 2111 is accurate, so as to reduce the deviation in the installation position of the magnetic blocks 30.

[0033] It can be understood that because each heat-fitting part on the hot pressing upper mold 100 corresponds to the position of a rubber ring molding groove 2110, when the heat-fitting part cooperates with the corresponding rubber ring molding groove 2110, the heat-fitting part of the hot pressing upper mold 100 will heat-press the plastic rubber strip 20, and the plastic rubber strip 20 will soften after being heated and enter the rubber ring molding groove 2110. The softened plastic rubber strip 20 covers the magnetic material block 30. At the same time, the plastic rubber strip 20 is formed into a rubber ring 40 by the rubber ring molding groove 2110. After the rubber ring 40 cools down, the magnetic material block 30 is firmly installed in the rubber ring 40, so that it can be removed from the preset position 2111 with the rubber ring, and finally realize the mass production of water polo rubber rings.

[0034] In one embodiment, the hot pressing method for hot pressing upper mold 100 and hot pressing lower mold 200 is prior art and is not within the scope of protection of this application. Furthermore, the heating structures of hot pressing upper mold 100 and hot pressing lower mold 200 can be replaced with those commonly used in hot pressing molds by those skilled in the art, and therefore will not be described in detail here.

[0035] In one embodiment, the plastic strip 20 can be a plastic strip, a silicone strip, etc., which is not limited here, and those skilled in the art can make a selection according to specific needs.

[0036] Combine Figure 2 and Figure 3 As shown, in one embodiment, a pad 2112 is protruded from the bottom of the rubber ring forming groove 2110 at each preset position 2111, and the pad 2112 is used to place the magnetic material block 30. It can be understood that since a pad 2112 is protruded at each preset position 2111, by placing the magnetic material block 30 on the pad 2112, a height difference is formed between the magnetic material block 30 and the bottom of the rubber ring forming groove 2110. When the softened plastic strip 20 enters the rubber ring forming groove 2110, the pad 2112 can push the magnetic material block 30 into the rubber ring 40, thereby allowing the magnetic material block 30 to be installed more deeply in the rubber ring 40. After the rubber ring 40 cools, the magnetic material block 30 can be more tightly connected to the water ball rubber ring.

[0037] Combine Figure 2 As shown, in this embodiment, the number of pads 2112 on each preset position 2111 is two, and each pad 2112 is used to abut the end of the magnetic material block 30; a glue seepage gap 211a is formed between the two pads 2112 on the same preset position 2111, and the glue seepage gap 211a is used to separate the magnetic material block 30 and the bottom of the rubber ring forming groove 2110. It can be understood that since there are two pads 2112 on each preset position 2111, when the magnetic material block 30 is placed at the preset position 2111, the two pads 2112 on the same preset position 2111 can be respectively pressed against the corresponding magnetic material block 30, and the magnetic material block 30 and the bottom of the rubber ring forming groove 2110 can be separated by the glue seepage gap 211a between the two pads 2112 on the same preset position 2111. When the softened plastic strip 20 enters the rubber ring forming groove 2110, the plastic strip 20 can fill the glue seepage gap 211a, and then cover both the front and back sides of the magnetic material block 30, so that the plastic strip 20 can wrap the magnetic material block 30 more securely, reducing the possibility of the magnetic material block 30 falling out of the plastic strip 20 and being accidentally swallowed.

[0038] Combine Figure 2As shown, in one embodiment, the bottom of the rubber ring forming groove 2110 is provided with a plurality of stoppers 2113 at each preset position 2111; the plurality of stoppers 2113 are spaced apart and together form a slot 211b; the slot 211b is used to accommodate the magnetic block 30. It can be understood that because the bottom of the rubber ring forming groove 2110 is provided with a plurality of stoppers 2113 at each preset position 2111, the magnetic block 30 can be placed in the slot 211b formed by the plurality of stoppers 2113. The plurality of stoppers 2113 can constrain the movement direction of the magnetic block 30, thereby reducing the possibility of displacement of the magnetic block 30 when in contact with the plastic strip 20. Specifically, the slot 211b faces the hot pressing upper mold 100. After the plastic strip 20 cools down, if the plastic strip 20 is taken out, the plastic strip 20 can more efficiently adhere to and carry the magnetic block 30 out of the slot 211b.

[0039] Combine Figure 2 As shown, in this embodiment, four stoppers 2113 are protruding from the same preset position 2111, and each stopper 2113 is used to abut against a corner of the magnetic block 30. It can be understood that since four stoppers 2113 are protruding from the same preset position 2111, each stopper 2113 can abut against a corresponding corner of the magnetic block 30. In other words, the four stoppers 2113 collectively constrain the corresponding magnetic block 30, thereby fixing the position of the magnetic block 30 and further reducing the possibility of displacement of the magnetic block 30 when contacting the plastic strip 20. Specifically, without the stoppers 2113, the softened plastic strip 20 would easily be displaced by the force applied to the magnetic block 30 upon contact.

[0040] Combine Figure 2 As shown, further, each limiting block 2113 forms a material placement step on the bottom of the corresponding slot 211b, and the material placement step is used to support the magnetic material block 30 to separate the magnetic material block 30 from the bottom of the slot 211b. It can be understood that since each limit block 2113 forms a material placement step on the bottom of the corresponding slot 211b, when the magnetic material block 30 is placed in the slot 211b, the magnetic material block 30 can support and lift the magnetic material block 30, thereby separating the magnetic material block 30 from the bottom of the slot 211b. When the softened plastic strip 20 enters the rubber ring molding groove 2110, the plastic strip 20 can fill the gap between the magnetic material block 30 and the bottom of the slot 211b, and then cover both sides of the magnetic material block 30, so that the plastic strip 20 can wrap the magnetic material block 30 more securely, reducing the situation where the magnetic material block 30 falls out of the plastic strip 20 and is accidentally swallowed.

[0041] Combine Figure 3As shown, in one embodiment, the rubber ring forming groove 2110 includes a first annular groove 21a, a connecting groove 21b and a second annular groove 21c that are connected in sequence, and a plurality of preset positions 2111 are respectively spaced apart in the first annular groove 21a and the second annular groove 21c. It can be understood that since the rubber ring forming groove 2110 includes a first annular groove 21a, a connecting groove 21b and a second annular groove 21c that are connected in sequence, and a plurality of preset positions 2111 are respectively spaced apart in the first annular groove 21a and the second annular groove 21c, by placing a magnetic material block 30 on each preset position 2111, a large number of magnetic material blocks 30 can be placed in the first annular groove 21a and the second annular groove 21c respectively. When the hot pressing upper mold 100 and the hot pressing lower mold 20 are pressed together, the magnetic material blocks 30 can be placed in the first annular groove 21a and the second annular groove 21c respectively. After the mold is closed, the corresponding heat-fitting part will hot-press the plastic strip 20. The plastic strip 20 will soften due to the heat. The first part of the softened plastic strip 20 will enter the first annular groove 21a, the second part of the softened plastic strip 20 will enter the connecting groove 21b, and the third part of the softened plastic strip 20 will enter the second annular groove 21c. After the plastic strip 20 cools down, the first part of the plastic strip 20 will be connected to the third part of the plastic strip 20 through the second part of the plastic strip 20 to form a water ball rubber ring.

[0042] Combine Figure 3 As shown, in one embodiment, the preset positions 2111 in the first annular groove 21a are evenly spaced. It can be understood that because the preset positions 2111 in the first annular groove 21a are evenly spaced, when a magnetic block 30 is placed on each preset position 2111 in the first annular groove 21a, the magnetic blocks 30 in the first annular groove 21a are evenly spaced in a ring shape, thereby allowing the magnetic blocks 30 to be installed in the rubber ring 40 in an evenly spaced state. This further makes the magnetic field distribution on the rubber ring 40 more uniform, making it more convenient to use.

[0043] Combine Figure 3 As shown, in one embodiment, the preset positions 2111 in the second annular groove 21c are evenly spaced. It can be understood that because the preset positions 2111 in the second annular groove 21c are evenly spaced, when a magnetic block 30 is placed on each preset position 2111 in the second annular groove 21c, the magnetic blocks 30 in the second annular groove 21c are evenly spaced in a ring shape, thereby allowing the magnetic blocks 30 to be installed in the rubber ring 40 in an evenly spaced state. This further makes the magnetic field distribution on the rubber ring 40 more uniform, making it more convenient to use.

[0044] Combine Figure 3 and Figure 4As shown, in one embodiment, the bottom of the connecting groove 21b is recessed into the hot press lower die 200 to form an arcuate surface; the hot press upper die 100 has a pressing block 120 protruding from the shrink fit portion, and the pressing block 120 engages with the connecting groove 21b. It can be understood that because the bottom of the connecting groove 21b is recessed into the hot press lower die 200 to form an arcuate surface, when the hot press upper die 100 and the hot press lower die 200 are closed, the pressing block 120 protruding from the shrink fit portion engages with the connecting groove 21b, thereby forming the second portion of the plastic strip 20 into an arc shape through the pressing block 120, enabling the first portion of the plastic strip 20 and the third portion of the plastic strip 20 to bend and engage along the second portion of the plastic strip 20.

[0045] Combine Figure 1 As shown, in one embodiment, multiple rubber ring forming grooves 2110 in the same rubber strip placement area 210 are arranged side by side to be distributed along the length direction of the plastic rubber strip 20. It can be understood that by arranging multiple rubber ring forming grooves 2110 in the same rubber strip placement area 210 side by side, the multiple rubber ring forming grooves 2110 in the same rubber strip placement area 210 are sequentially arranged and distributed along the length direction of the plastic rubber strip 20. That is, by placing one plastic rubber strip 20 in one rubber strip placement area 210, one plastic rubber strip 20 can extend through multiple rubber ring forming grooves 2110 in the same rubber strip placement area 210. When the hot pressing upper mold 100 and the hot pressing lower mold 200 are closed, the multiple heat-fitting parts will synchronously hot-press the plastic rubber strip 20 in the corresponding rubber ring forming grooves 2110, so that multiple water ball rubber rings can be molded at one time using only one plastic rubber strip 20, thereby improving production efficiency.

[0046] like Figure 1 and Figure 2 As shown, the present disclosure further provides a water polo rubber ring forming tool, comprising the water polo rubber ring forming mold 10 of any of the above-mentioned embodiments. It can be understood that by applying the water polo rubber ring forming mold 10 of the present disclosure to the water polo rubber ring forming tool, by placing a magnetic material block 30 on each preset position 2111, a large number of magnetic material blocks 30 can be placed in multiple rubber ring forming grooves 2110 respectively, thereby enabling the operator to intuitively judge whether the number of magnetic material blocks 30 is accurate based on whether the magnetic material blocks 30 are placed on the preset positions 2111, thereby reducing the occurrence of deviation in the number of magnetic material blocks 30 installed. At the same time, the magnetic material blocks 30 on the preset positions 2111 are accurately positioned, thereby reducing the occurrence of deviation in the installation position of the magnetic material blocks 30.

[0047] Compared with the prior art, the present disclosure has at least the following advantages:

[0048] 1) By placing the plastic rubber strip 20 on the rubber strip placement area 210, since a plurality of rubber ring forming grooves 2110 are spaced apart in each rubber strip placement area 210, and a plurality of preset positions 2111 are spaced apart in each rubber ring forming groove 2110, a magnetic material block 30 is placed on each preset position 2111, so that a large number of magnetic material blocks 30 can be placed in the plurality of rubber ring forming grooves 2110 respectively, thereby enabling the operator to intuitively judge whether the number of magnetic material blocks 30 is accurate based on whether the magnetic material blocks 30 are placed on the preset positions 2111, so as to reduce the occurrence of deviation in the number of magnetic material blocks 30 installed. At the same time, the position of the magnetic material blocks 30 on the preset positions 2111 is accurate, thereby reducing the deviation in the installation position of the magnetic material blocks 30.

[0049] 2) Because each heat-fitting portion on the hot pressing upper mold 100 corresponds to a position of a rubber ring forming groove 2110, when the heat-fitting portion cooperates with the corresponding rubber ring forming groove 2110, the heat-fitting portion of the hot pressing upper mold 100 will heat-press the plastic rubber strip 20. The plastic rubber strip 20 softens after being heated and enters the rubber ring forming groove 2110. The softened plastic rubber strip 20 covers the magnetic material block 30. At the same time, the plastic rubber strip 20 is formed into a rubber ring 40 by the rubber ring forming groove 2110. After the rubber ring 40 cools down, the magnetic material block 30 is firmly installed in the rubber ring 40, so that it can be removed from the preset position 2111 with the rubber ring, and finally realize the mass production of water polo rubber rings.

[0050] The above-described embodiments merely represent several implementation methods of the present disclosure. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person of ordinary skill in the art could make various modifications and improvements without departing from the scope of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the present patent shall be determined by the appended claims.

Claims

1. A water polo rubber ring forming mold, comprising a hot pressing upper mold and a hot pressing lower mold, wherein the hot pressing upper mold is arranged above the hot pressing lower mold; It is characterized in that The hot pressing lower mold is divided into multiple rubber strip placement areas, and the rubber strip placement areas are used to place plastic rubber strips; multiple rubber ring forming grooves are arranged at intervals in each of the rubber strip placement areas; multiple preset positions are set in each of the rubber ring forming grooves, and the multiple preset positions are distributed at intervals along the extension path of the rubber ring forming groove, and the preset positions are used to place magnetic material blocks; the hot pressing upper mold is provided with multiple heat-fitting parts, and each of the heat-fitting parts corresponds to the position of one of the rubber ring forming grooves; the heat-fitting parts cooperate with the corresponding rubber ring forming grooves to hot-press the plastic rubber strips in the corresponding rubber ring forming grooves to form water ball rubber rings.

2. The water polo rubber ring forming mold according to claim 1, characterized in that: The bottom of the rubber ring forming groove is provided with a pad at each preset position, and the pad is used to place a magnetic material block.

3. The water polo rubber ring forming mold according to claim 2, characterized in that: There are two pads on each preset position, and each pad is used to abut the end of the magnetic material block; a glue seepage gap is formed between the two pads on the same preset position, and the glue seepage gap is used to separate the magnetic material block and the bottom of the rubber ring forming groove.

4. The water polo rubber ring forming mold according to claim 1, characterized in that: The bottom of the rubber ring forming groove is provided with a plurality of limit blocks at each preset position; the plurality of limit blocks are distributed at intervals and together form a slot; the slot is used to place the magnetic material block.

5. The water polo rubber ring forming mold according to claim 4, characterized in that: Each of the limiting blocks forms a material placement step on the bottom of the corresponding slot, and the material placement step is used to abut against the magnetic material block to separate the magnetic material block from the bottom of the slot.

6. The water polo rubber ring forming mold according to claim 1, characterized in that: The rubber ring forming groove includes a first annular groove, a connecting groove and a second annular groove that are connected in sequence, and a plurality of preset positions are respectively spaced apart in the first annular groove and the second annular groove.

7. The water polo rubber ring forming mold according to claim 6, characterized in that: The preset positions in the first annular groove are evenly spaced; and / or, The preset positions in the second annular groove are evenly spaced apart.

8. The water polo rubber ring forming mold according to claim 6, characterized in that: The bottom of the communicating groove is recessed into the hot pressing lower die to form an arc surface; the hot pressing upper die is provided with a pressing block protruding on the thermal fitting portion, and the pressing block is matched with the communicating groove.

9. The water polo rubber ring forming mold according to claim 1, characterized in that: The plurality of rubber ring forming grooves in the same rubber strip placement area are arranged side by side to be distributed along the length direction of the plastic rubber strip.

10. A water ball rubber ring forming tool, characterized in that: A water polo rubber ring forming mold comprising the water polo rubber ring forming mold according to any one of claims 1 to 9.

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